Class / Patent application number | Description | Number of patent applications / Date published |
363141000 | With cooling means | 61 |
20080239776 | Cooling electronic components - An illustrative embodiment of the invention provides an electronic power inverter for a traction motor and a coolant for the inverter. The power inverter comprises an aluminum component and the coolant is a non-aqueous dielectric liquid coolant composition including an inhibitor. The coolant consists essentially of a mixture of an oligo-(alkyl siloxane), such as hexamethyldisiloxane, and a monomer or oligomer of an alkyl ether alkylene glycol, such as 1-methoxy-2-propanol, and including an azole in an amount for inhibiting dissolution of the aluminum electronic component. | 10-02-2008 |
20080239777 | Apparatus for Converting an Electrical Current and Method for Reducing the Load-Change Stress of Power Semiconductor Units in the High-Voltage Energy Distribution and Transmission Sector - An apparatus for converting an electrical current in a high-voltage energy distribution and transmission system has one or more current converter valves with a series circuit of a plurality of power semiconductor units. A cooler cools the power semiconductor units. Temperature deviations of the power semiconductor units can be decreased in a cost-effective manner in that the cooler is provided with a control unit that provides cooling in dependence on a current flow via the power semiconductor units. | 10-02-2008 |
20080304303 | POWER CONVERTING DEVICE - A power converting device includes a power converting unit for converting an AC voltage input into a DC voltage output, a cooling fan for dissipating heat generated by the power converting unit, a detecting unit connected electrically to the power converting unit for detecting a current output of the power converting unit and for generating a control signal corresponding to the current output detected thereby, and a controller connected electrically to the cooling fan and the detecting unit for controlling rotational speed of the cooling fan in accordance with the control signal from the detecting unit. | 12-11-2008 |
20080316786 | Cooling-fin mounted rectifier for vehicular AC generators - A rectifier for an alternating current generator is provided. The rectifier comprise a plurality of high-side rectifying elements and a plurality of low-side rectifying elements. The high-side rectifying elements are held by a plurality of high-side cooling fins, while the high-side rectifying elements are held by a plurality of low-side cooling fins. By way of example, the plurality of high-side cooling fins are disposed to be apart from each other by a predetermined distance and the plurality of low-side cooling fins are disposed to be apart from each other by a predetermined distance. | 12-25-2008 |
20090021971 | VEHICLE INVERTER ASSEMBLY WITH COOLING CHANNELS - An inverter assembly for a vehicle includes a housing, a first inverter, and a second inverter. The housing comprises a plurality of walls. The plurality of walls form an inlet for cooling fluid to enter the housing, an outlet for the cooling fluid to exit the housing, and a channel, and a channel for the cooling fluid to flow therebetween. The first inverter is disposed within the housing proximate the channel, and is configured to be cooled by the cooling fluid flowing through the channel. The second inverter is also disposed within the housing proximate the channel, and is also configured to be cooled by the cooling fluid flowing through the channel. | 01-22-2009 |
20090034309 | Electric power conversion system - In the present invention, miniaturization of an electric power conversion system is made possible while the reduction of a rise in temperature is achieved through a cooling operation by a cooling fan. The electric power conversion system is provided with a casing for covering cooling fins for cooling power semiconductors, a main circuit board having a driver circuit for driving the power semiconductors, and a cover for covering up the main circuit board. The system includes a first airflow hole provided at a part of the main circuit board, on the upper side of an air-intake provided in the cover, and a second airflow hole provided on the lower side of the first airflow hole, and on the lower side of the cooling fins, wherein air from the second airflow hole is driven to the cooling fins by a cooling fan. | 02-05-2009 |
20090059635 | Rectifier device for automotive alternator - An AC generator, referred to as an alternator, is mounted on an automotive vehicle for supplying electric power to an on-board battery and other electric loads. The alternator includes a rectifier device for rectifying alternating current to direct current. The rectifier is composed of a minus-side heat-radiating plate on which six minus-side rectifier elements are mounted and a plus-side heat-radiating plate on which six plus-side rectifier elements are mounted. Each rectifier is mounted on the heat-radiating plate in the same manner, i.e., by forcibly inserting the rectifier element into a mounting hole formed in the heat-radiating plate. A disc portion of the rectifier element has an outer peripheral surface on which knurls are formed. The outer peripheral surface having the knurls is tapered so that the disc portion is easily inserted into the mounting hole while establishing a firm grip and a good heat-conductive contact between the rectifier element and the heat-radiating surface. | 03-05-2009 |
20090207639 | Three-level power converting apparatus - Each phase of a three-level power converting apparatus is configured by a single unit, and four switching devices ( | 08-20-2009 |
20100014337 | ARRANGEMENT AND A METHOD FOR COOLING - An arrangement for cooling a high voltage converter including a major loop with a pump for making a coolant liquid to pass power semiconductor devices of the converter and a heat exchanger for lowering the temperature of the coolant liquid before passing the power semiconductor devices again. An extra loop is connected to the major loop. The extra loop has a cooling apparatus containing a volume of a cooling medium and adapted to cool the medium to a temperature substantially lower than the temperature of the coolant liquid after having passed the heat exchanger in the major loop. A control unit is adapted to divert at least a part of the coolant liquid to flow through the extra loop when the need of cooling the power semiconductor devices of the converter is extremely high. | 01-21-2010 |
20100014338 | COOLING AND SHIELDING OF A HIGH VOLTAGE CONVERTER - A converter for converting alternating voltage into direct voltage and vice versa in a converter station of a high voltage transmission system. A series connection of converter valves includes power semiconductor devices connected in series and arranged in superimposed layers. The valves are arranged on top of each other in a column. Coolant liquid conducting tubes are in an extension over at least one part of the circumference of the column having no connections to cooling blocks for cooling the devices made of metal. Such metal tubes are arranged in the part for over this part of the column circumference forming an electric field shielding screen. The coolant liquid conducting tubes are when extending over parts of a circumference of the column where connections are made to cooling blocks made of an electrically insulating material. An electric field shield is arranged outside the column over these parts. | 01-21-2010 |
20100135055 | Trailer Hitch Plug Power Inverter - Disclosed is a power inverter for use in converting 12VDC to 115VAC, the power inverter is adapted for securement to a conventional trailer hitch connector. The power inverter provides remote power to 115 volt accessory items by use of a conventional 115 volt output receptacle positionable at the rear of a vehicle by use of the trailer hitch connector so as to eliminate the need for extension cords commonly used when powering 115 volt accessories from a conventional vehicle. | 06-03-2010 |
20110103119 | APPARATUS FOR AND METHOD OF COOLING ELECTRONIC CIRCUITS - An electronic device such as an AC/DC power adapter includes a conductive heat dissipation system. The device contains heat generating components and is powered via power supply leads by an external power supply circuit. The device further contains a thermally conductive mass that is thermally coupled to both the heat generating components and to the power supply leads. When the power supply leads are coupled to receive electricity from the external power supply circuit, heat generated by the device is thermally conducted into the external power supply circuit via the power supply leads. | 05-05-2011 |
20110122669 | Modularly Constructed Power Converter Arrangement - A modularly constructed power converter arrangement has two end-side elements and at least one power converter module arranged therebetween. One end-side element has, a fan of an air cooling device, while the other end-side element has, aligned with the fan, cutouts acting as air passages. At least one end-side element has an electrical connection device. The at least one power converter module has, as part of the cooling device, a heat sink, through which air can flow from one end-side element to the other and on which is arranged at least one power semiconductor module connected to a control device and to a capacitor device. For this purpose, the at least one power converter module has a housing, which is open at the end sides and which can be connected in each case at the end sides to an end-side element or a further power converter module. | 05-26-2011 |
20110149625 | Capacitor Module, Power Converter, Vehicle-Mounted Electrical-Mechanical System - A capacitor module in which the structure of a connecting portion is highly resistant against vibration and has a low inductance. The capacitor module includes a plurality of capacitors and a laminate made up of a first wide conductor and a second wide conductor joined in a layered form with an insulation sheet interposed between the first and second wide conductors. The laminate comprises a first flat portion including the plurality of capacitors which are supported thereon and electrically connected thereto, a second flat portion continuously extending from the first flat portion while being bent, and connecting portions formed at ends of the first flat portion and the second flat portion and electrically connected to the exterior. | 06-23-2011 |
20110188279 | POWER CONVERTER - A power converter including a switching element, a switching power module containing a driving circuit for driving the switching element, a smoothing capacitor module for smoothing an input to the switching power module, and a heat sink for cooling the switching power module, wherein the switching power module is mounted on the heat sink, and the smoothing capacitor module is provided on a side surface of the heat sink. | 08-04-2011 |
20110188280 | ELECTRIC POWER CONVERTER - An electric power converter includes a cooler and an electronic circuit. The cooler includes a heat sink, a cooling fan, and a wind tunnel. A plurality of radiator fins are provided on a heat-sink base in the heat sink. The cooling fan is configured to feed cooling air through the plurality of radiator fins. The wind tunnel covers the plurality of radiator fins and the cooling fan. The electronic circuit includes a plurality of rectifiers and a plurality of input terminals. The plurality of rectifiers are provided on a side of the heat-sink base opposite to the plurality of radiator fins and are arranged side by side in a longitudinal direction of the heat-sink base. The plurality of input terminals are connected to the plurality of rectifiers with band-shaped conductors and are provided on a side of the plurality of rectifiers opposite to the heat sink. | 08-04-2011 |
20110194322 | POWER CONVERSION APPARATUS - The power conversion apparatus includes electronic components constituting a power conversion circuit, a cooler for cooling at least some of the electronic components, and a case housing the at least some of the electronic components and the cooler. The at least some of the electronic components and the cooler are fixed to and integrated in a frame as an internal unit. The frame has such a shape that at least some of the electronic components constituting the internal unit are disposed inside the frame. The frame includes a terminal block on which input/output terminals for inputting and outputting controlled power are mounted for providing connection between the input/output terminals and external devices. | 08-11-2011 |
20120014154 | MOTOR DRIVE COOLING DUCT SYSTEM AND METHOD - The present invention relates generally to tuning the flow of cooling air across converter and inverter heat sinks in a motor drive system. More specifically, present techniques relate to motor drive duct systems having parallel cooling air duct channels dedicated to providing cooling air for a converter heat sink and an inverter heat sink, respectively. In particular, a first duct channel through an inverter duct and a converter duct is dedicated to providing cooling air to the converter heat sink without cooling the inverter heat sink, whereas a second duct channel through the inverter duct and the converter duct is dedicated to providing cooling air to the inverter heat sink without cooling the converter heat sink. A guide vane adjacent to the inverter duct may control the flow of cooling air from a blower between the first and second duct channels. In addition, the inverter duct and the converter duct may both include baffled walls that direct cooling air into contact with the inverter heat sink and the converter heat sink, respectively, such that temperature gradients across the heat sinks are minimized. | 01-19-2012 |
20120069619 | Modular Power Converters Usable Alone or In A Multiphase Power Converter - A power converter module for use alone or with other modules in a multiphase power converter. The power converter module has an enclosure that surrounds internal components to prevent radiation of electromagnetic energy, which internal components also limit conduction of electromagnetic energy. The internal components include an EMI filter, a ripple filter, a power converter, and a control interface that communicates with a control system of a power conversion system. The control interface includes a memory that stores information related to the power converter modules so as to improve interchangeability of similar power modules with the multiphase power converter. | 03-22-2012 |
20120075901 | GEOTHERMALLY COOLED POWER CONVERSION SYSTEM - Embodiments of the present invention provide novel techniques for cooling power conversion circuitry. In particular, a geothermal conditioning system may be used that includes a ground loop heat exchanger. The ground loop heat exchanger may pump heat from the power conversion circuitry into the ground in order to cool the power conversion circuitry. The ground loop heat exchanger may also extract heat from the ground and direct the heat into the power conversion circuitry in order to heat the power conversion circuitry. The geothermal conditioning system may also include a surface loop heat exchanger and combine the cooling and heating abilities of both the ground loop and surface loop heat exchangers in order to improve energy efficiency. | 03-29-2012 |
20120127770 | Solar Energy AC Generating Apparatus - A solar AC power generation apparatus is provided such that it can be conveniently installed in accordance with a required power generation amount because utility power can be drawn from each solar cell panel having a predetermined generation capacity. The solar AC power generation apparatus includes: a solar cell panel comprising a plurality of cells arranged in a certain pattern and serially connected to each other in units of two or more cells, upper and lower sheets protecting the plurality of cells from the outside, a transparent resin filled between the sheets, and an edge frame installed along the circumference of the edges of the sheets; an external terminal box fixed to the solar cell panel and for drawing out the DC power of a solar cell module including a plurality of cells connected in series; and an inverter device for converting the DC power drawn from the external terminal box into AC power and outputting the AC power. | 05-24-2012 |
20120140539 | GAS COOLED TRACTION DRIVE INVERTER - The present invention provides a modular circuit card configuration for distributing heat among a plurality of circuit cards. Each circuit card includes a housing adapted to dissipate heat in response to gas flow over the housing. In one aspect, a gas-cooled inverter includes a plurality of inverter circuit cards, and a plurality of circuit card housings, each of which encloses one of the plurality of inverter cards. | 06-07-2012 |
20120206950 | POWER ELECTRONICS INVERTER WITH CAPACITOR COOLING - A power electronics inverter includes a housing which forms a cold plate with coolant passages. The housing encloses an insulated gate bipolar transistor (IGBT), and a DC Link capacitor. The capacitor comprises a bus-bar which exits from a bottom side of the capacitor, and the bus-bar is positioned adjacent to the cold plate. The cold plate forms a cooling passage which underlies the IGBT and the capacitor bus-bar. Thermally conductive gap pads are located between the capacitor bus-bar and the cold plate. | 08-16-2012 |
20120262968 | POWER CONVERTING APPARATUS - A power converting apparatus includes a housing, a cable, and a grommet supporting member. The housing includes a housing base, a main body, and an air duct. The housing base has a first surface and a second surface and includes a through hole. The main body includes a plurality of electronic components on the first surface of the housing base. The air duct is disposed on the second surface of the housing base, and cooling air flows through the air duct. The cable is disposed through the through hole of the housing base so as to be wired between the main body and the air duct. The grommet supporting member is in the air duct or the main body. The grommet supporting member supports a grommet through which the cable is disposed. The grommet supporting member is not integral with the housing base. | 10-18-2012 |
20120262969 | POWER CONVERTING APPARATUS AND REACTOR - A power converting apparatus includes a housing, a self-standing cable, and a grommet securing member. The housing includes a housing base, a main body, and an air duct. The housing base includes a through hole. The main body includes a plurality of electronic components on a first surface of the housing base. The air duct is disposed on a second surface of the housing base. The self-standing cable is disposed through the through hole so as to be wired between the main body and the air duct. The self-standing cable stands on itself in a direction approximately orthogonal to the housing base. The grommet securing member is disposed in the air duct or the main body so as to secure a grommet to the through hole. The grommet securing member is not integral with the housing base. | 10-18-2012 |
20120275205 | Power Conversion Apparatus and Electric Vehicle - The metallic case of a power conversion apparatus includes a casing having a side wall, as well as an upper case and a lower case, a first area being formed between a cooling jacket provided at the inner periphery of the side wall and the lower case, the metal base plate dividing the first area between the cooling jacket and the upper case into a lower side second area and an upper side third area, first and second power modules being fastened to a top surface and a capacitor module being provided in the first area, driving circuits that drive inverter circuits of the power modules respectively being provided in the second area, and a control circuit that controls the driver circuits being provided in the third area. | 11-01-2012 |
20120300525 | CONVERTER ARRANGEMENT AND METHOD IN CONNECTION WITH CONVERTER ARRANGEMENT - An exemplary converter arrangement and method in connection with the arrangement includes a converter arranged in a closed container or similar structure. The container has a high voltage compartment and a low voltage compartment. The high voltage compartment includes a transformer connectable to a network to be supplied and the low voltage compartment includes the converter. The arrangement being configured to exchange heat from the high voltage compartment to the low voltage compartment and heating the low voltage compartment with losses of the transformer. | 11-29-2012 |
20130094269 | Power Conversion Apparatus - A power conversion apparatus includes a smoothing capacitor module having a plurality of one and the other DC terminals arranged in a state of being laminated with each other, a flow channel forming body for forming a cooling medium flow channel that allows a cooling medium to flow along the capacitor module, and a plurality of power semiconductor modules each including a module case having a cooling surface, DC terminals projecting in one direction in a laminated state from the module case, and an AC terminal projecting in one direction from the module case. The power semiconductor modules are fixed to the flow channel forming body so that the cooling surface of the module case of the power semiconductor module is inserted into the cooling medium flow channel and comes into contact with the cooling medium flowing within the flow channel forming body. | 04-18-2013 |
20130107601 | SYSTEM AND METHOD FOR OPERATING AN ELECTRIC POWER CONVERTER | 05-02-2013 |
20130128645 | Power Conversion Apparatus and Electric Vehicle - The metallic case of a power conversion apparatus includes a casing having a side wall, as well as an upper case and a lower case, a first area being formed between a cooling jacket provided at the inner periphery of the side wall and the lower case, the metal base plate dividing the first area between the cooling jacket and the upper case into a lower side second area and an upper side third area, first and second power modules being fastened to a top surface and a capacitor module being provided in the first area, driving circuits that drive inverter circuits of the power modules respectively being provided in the second area, and a control circuit that controls the driver circuits being provided in the third area. | 05-23-2013 |
20130128646 | Power Conversion Device - A power conversion device includes: a cooling base | 05-23-2013 |
20130170269 | Heat Conductor for Use with an Inverter in an Electric Vehicle (EV) or a Hybrid-Electric Vehicle (HEV) - A heat conductor for use with an inverter in an electric or hybrid-electric vehicle, the inverter including a direct current link capacitor having multiple film capacitors configured in a stack to form a substantially polygonal prism. Each film capacitor has orthotropic characteristics. The heat conductor has a first substantially planar member configured to contact a first side of the polygonal prism formed by one of the film capacitors, and a second substantially planar member configured to contact a second side of the polygonal prism opposite the first side of the rectangular prism, the second side of the rectangular prism formed by another one of the film capacitors. The first and second planar member are thermally conductive for dissipating heat generated by the film capacitors, are attached by an interconnect, and have sufficient rigidity to confine expansion of the film capacitors across the thicknesses thereof. | 07-04-2013 |
20130279230 | Power Module - Provided is a power conversion device including an insulating member manufactured such that a thickness di (mm) of the insulating member made from a resin, provided between a heat dissipating surface of a conductor plate bonded to a power semiconductor device and a heat dissipating plate that dissipates the heat of the power semiconductor device satisfies a relation of di>(1.36×10-8×Vt2+3.4×10-5×Vt−0.015)×εr, where a relative permittivity of the insulating member is Er and a surge voltage generated between the conductor plate and the heat dissipating plate accompanied by an ON/OFF switching operation of the power semiconductor device is Vt (V). The conductor plate of the power semiconductor device, the insulating member, and the heat dissipating plate are bonded by thermocompression bonding. | 10-24-2013 |
20130294130 | FUEL CELL SYSTEM - A fuel cell system including: a hydrogen generator for causing a reforming reaction of a material gas to generate a hydrogen-containing fuel gas; a fuel cell configured to cause a reaction between the fuel gas generated by the hydrogen generator and an oxygen-containing oxidizing gas; a combustor configured to combust at least one of the material gas and an off fuel gas discharged from the fuel cell; a casing configured to accommodate the hydrogen generator, the fuel cell, and the combustor; a first exhaust port, formed on the casing and through which the flue gas from the combustor is discharged to an outside of the casing; a first intake port formed on the casing; suction units configured to suction air through the first intake port into the casing; and a CO detector configured to detect carbon monoxide contained in the air suctioned through the first intake port. | 11-07-2013 |
20130301328 | POWER CONVERSION APPARATUS - A power conversion apparatus according to an embodiment includes a cooling jacket. The cooling jacket includes a mounting face on which a power module including a power semiconductor device is mounted, a plurality of radiation fins that are arranged along a predetermined direction over the substantially whole area of the back side of the mounting face, and a boss that is placed along the predetermined direction in the central area of the substantially whole area of the back side. | 11-14-2013 |
20130308362 | SWITCHED POWER CONVERTER - The present invention relates to a switched power converter comprising a base plate on which at least one heat sink is arranged. The converter further comprises at least one power transistor arranged on a side of the at least one heat sink. Further, at least one spring element is arranged to press against the power transistor arranged on a side of the at least one heat sink and an oppositely facing side of either an adjacent heat sink or a base plate end face parallel to the at least one heat sink. | 11-21-2013 |
20130314966 | POWER CONVERTER - A power converter ( | 11-28-2013 |
20130343110 | Inverter, Sealing Air Duct and Heat Dissipation System - An inverter, a sealing air duct, and a heat dissipation system are disclosed. The inverter includes: an enclosure having a first cavity and a second cavity that are isolated from each other and sealed; a magnetic conversion circuit including magnetic elements that is arranged in the first cavity; a power conversion circuit including power tubes that is arranged in the second cavity; a heatsink arranged at the bottom of the enclosure and located outside the first cavity and the second cavity; a sealing air duct arranged outside the second cavity, where the columnar pipeline is sealed at two ends, the bottom surface is formed by a side wall of the second cavity or a substrate of the heatsink, and the bottom surface includes an air inlet and an air outlet to communicate with the second cavity and the at least one columnar pipeline. | 12-26-2013 |
20140003111 | ELECTRIC POWER CONVERTER | 01-02-2014 |
20140029324 | POWER SUPPLY DEVICE - Provided is a power supply device that can suitably release heat with a small number of parts. In an AC-DC converter that is a power supply device according to an embodiment of the present invention, a heat conductive member thermally connected to a base plate is thermally connected to an upper surface of a stacked coil board including a main circuit board and circuit boards. This configuration causes heat generated in the stacked coil board to be transferred to the base plate also from the upper surface of the stacked coil board via the heat conducting member, whereby the heat release effect can be increased. In addition, since the heat conducting member is the only member used for releasing heat, the heat release effect can be increased while the number of parts is kept from increasing. | 01-30-2014 |
20140078803 | Electric Power Converter - An electric power converter is provided with: a power semiconductor module, which has a power semiconductor element that converts a direct current into an alternating current; a capacitor module, which has a capacitor element that smooths the direct current; and a cooling body, which cools the power semiconductor module and the capacitor module. The capacitor module has a case, which has an approximately rectangular shape, has an opening formed in one surface, and has a space for housing the capacitor element; and a DC conductor for electrically connecting the power semiconductor element and the capacitor element to each other. The cooling body is formed to face the bottom surface on the inner wall of the case, and both the side surfaces of the case, the side surfaces facing each other. Between the capacitor element and the inner wall surfaces of the case, the direct current conductor is formed along the bottom surface and both the side surfaces of the case. | 03-20-2014 |
20140092663 | ELECTRIC POWER CONVERTER - An electric power converter includes a stacked body in which a plurality of semiconductor modules and a plurality of coolers are stacked. Each of the semiconductor modules is provided with a main body that has semiconductor elements therein, a plurality of power terminals, and control terminals. Among the plurality of the power terminals respectively included in the two semiconductor modules adjoining in a stacking direction of the stacked body, at least parts of the power terminals are configured so as not to overlap each other when viewed from the stacking direction. | 04-03-2014 |
20140098588 | Power Module and Power Conversion Apparatus Using Same - A power module includes a plurality of semiconductor devices constituting upper/lower arms of an inverter circuit, a plurality of conductive plates arranged to face electrode surfaces of the semiconductor devices and a module case configured to accommodate the semiconductor devices and conductive plates, wherein the module case includes a heat-radiation member made of plate-like metal and facing a surface of the conductive plate and a metallic frame body having an opening that is closed by the heat-radiation member, and wherein a heat-radiation fin unit having a plurality of heat-radiation fins vertically arranged thereon is provided at a center of the heat-radiation member, and a joint portion with the frame body is provided at an peripheral edge of the heat-radiation member, and the heat radiation member has a heat conductivity higher than that of the frame body, and the frame body has a higher rigidity than that of the heat-radiation member. | 04-10-2014 |
20140104912 | WATER COOLING SUB-HIGH FREQUENCY TRANSFORMER AND COOLING DEVICE THEREOF - A sub-high frequency transformer with water-cooled heat dissipation includes a magnetic core ( | 04-17-2014 |
20140140117 | ELECTRIC POWER CONVERTER - The passage from a cooling medium inlet to a cooling medium outlet of a cooler includes: an upstream cooling portion and a downstream cooling portion for cooling heat generating bodies; an upstream distribution portion located on the cooling medium inlet side; a downstream distribution portion located on the cooling medium outlet side; a connecting portion for connecting the upstream cooling portion and the downstream cooling portion; and a partition portion for partitioning the upstream cooling portion and the downstream cooling portion, and the upstream distribution portion and the downstream distribution portion. The passage is connected so that the cooling medium flows in order of the upstream distribution portion, the upstream cooling portion, the connecting portion, the downstream cooling portion, and the downstream distribution portion. | 05-22-2014 |
20140140118 | CONNECTION STRUCTURE AND INVERTER - Two opening through which a refrigerant runs are connected by a first connecting pipe and a second connecting pipe. One end of the first connecting pipe is connected to a first opening by a planar seal. Another end of the first connecting pipe is connected to one end of a second connecting pipe by a shaft seal. Another end of the second connecting pipe is connected to a second opening by a planar seal. An axial direction of a shaft seal is perpendicular to a plane that includes the first opening. | 05-22-2014 |
20140140119 | Power Inverter - A power inverter includes a plurality of power modules; a first casing housing the power modules and a cooling path in which a coolant flows is formed; a plurality of AC busbars connected to AC terminals of the power modules; a holding member, in which a positioning pin protruding to an upper side in a direction opposite to the first casing is formed, that maintains the AC busbars and is fixed to the first casing; a current sensor module including a plurality of current sensors detecting the AC currents of the AC busbars; a frame body for maintaining the current sensors, and a lead terminal protruding from the frame body to the upper side; and a driver circuit board, in which a through-hole used for the lead terminal and a board positioning through-hole are formed, arranged on the upper side of the frame body arranged on the holding member. | 05-22-2014 |
20140146588 | CAPACITANCE ELEMENT HOUSING UNIT - In order to provide a capacitance element housing unit with which the effect of suppressing heat transfer between capacitance elements can be increased more suitably, a capacitance element housing unit ( | 05-29-2014 |
20140160822 | Power Conversion Apparatus - Provided is a power conversion apparatus that includes a power semiconductor module, a smoothing capacitor module, an alternating-current bus bar, a control circuit unit to control the power semiconductor element, and a flow channel formation body to form a flow channel through which a cooling medium flows. The power semiconductor module has a first heat dissipation portion and a second heat dissipation portion facing the first heat dissipation portion. A flow channel formation body external portion of the flow channel formation body has a first surface wall that faces the first heat dissipation portion with the flow channel therebetween, a second surface wall that faces the second heat dissipation portion with the flow channel therebetween, and a sidewall to connect the first surface wall and the second surface wall. The sidewall has an opening to insert the power semiconductor module into the flow channel. | 06-12-2014 |
20140160823 | Power Conversion Apparatus - A power conversion device includes a capacitor for smoothing DC current; power semiconductor modules having power semiconductor devices stored in a module case and DC terminals, an AC terminal and signal terminals are extracted from an extracting part of the module case; a capacitor bus bar that connects the capacitor with the DC terminals; a first channel body having a first coolant channel formed to allow the power semiconductor modules to be inserted therein; a second channel body in which a second coolant channel for cooling the capacitor and the capacitor bus bar is formed; and a housing having a base on which the first and second channel bodies are arranged in parallel across a prescribed space and openings formed in areas of the base facing the prescribed space. | 06-12-2014 |
20140198549 | ENERGY DISSIPATING DEVICE FOR DC POWER SUPPLIES - An energy dissipating device configured to connect to a power supply and to dissipate excess energy from a direct current (DC) rail in response to a change in power supply settings or operating characteristics. The energy dissipating device is connected to the DC rail, which conducts current generated by an AC/DC converter to at least one DC/DC converter. When power demand to the DC/DC converter is reduced, the DC/DC converter generates a supplemental current surge on the DC rail. A rail current monitor monitors the current level on the DC rail and generates the DC rail power signal indicative of the supplemental current surge level generated by the at least one DC/DC converter. The supplemental surge current is used to control dissipative elements connected across the DC rail to modulate a current sink path across the DC rail to dissipate the excess energy from the DC rail. | 07-17-2014 |
20140211531 | LIQUID COOLING TYPE POWER CONVERSION APPARATUS AND RAILWAY VEHICLE - According to one embodiment, a liquid cooling type power conversion apparatus is provided. The liquid cooling type power conversion apparatus has a power conversion apparatus and a cooling apparatus which are provided in an engine room of a railway vehicle, an electric component and a plurality of semiconductor devices which are provided in the power conversion apparatus, a third heat exchanger located between the electric component and an electric blower, a cooling body on which the plurality of the semiconductor devices are mounted, a first heat exchanger provided in the cooling apparatus, a second heat exchanger provided in the cooling apparatus having a size smaller than the first heat exchanger | 07-31-2014 |
20140233291 | INVERTER STACK - An inverter stack includes an inverter main body housing an inverter circuit inside, and a fan block disposed on the inverter main body through an engagement device and housing a plurality of fans. The engagement device includes a bolt member penetrating through a slot formed in the inverter main body, wherein a body portion of the bolt member is screwed into a nut fixed to a plate member, and having a stopper nut, and an engagement hole formed in the fan block, the engagement hole having an attachment hole portion and a clamping hole portion formed continuously. When the bolt member is tightened in which the body portion passes through the clamping hole portion, the fan block is engaged with the inverter main body, and when the bolt member is released, the fan block is pulled out to the front side to be disengaged from the inverter main body. | 08-21-2014 |
20140268969 | POWER POLE INVERTER - An arm assembly is provided. The arm assembly includes a heat exchanger assembly, a plurality of electrical components thermally coupled to the heat exchanger assembly, and a number of electrical buses. Each electrical component is coupled to, and in electrical communication with, one electrical bus. A sealing compound is then applied to each electrical bus and to a limited number of the electrical components. | 09-18-2014 |
20140313806 | DC-DC Converter and Power Conversion Apparatus - In a DC-DC converter, the cooling of switching elements has been performed only by means of a cooling plate; therefore, there is a problem in that, to effectively radiate heats generated by power MOSFETs that have large heating values and that are arranged parallel, it becomes necessary to reduce thermal resistances and complicate the cooling route of a water-cooling device. Plural switching elements for controlling currents flowing through inductor elements, which are used for voltage conversion of a DC-DC converter, are fixed to a metal case via a heat conductive insulating material and via a metal radiator having a better heat conduction characteristic than the metal case. Because there occur no large mixing phenomena of heat currents among neighboring switching elements, and there are only little heat interferences between the neighboring switching elements, the thermal diffusion characteristic is improved, and the cooling efficiency for the switching elements can be increased. | 10-23-2014 |
20150016171 | TRACTION CONVERTER AND RAILWAY VEHICLE - The present invention equalizes the temperatures of semiconductor elements and efficiently cools the semiconductor elements in a lightweight device configuration, by optimally combining the configurations of heat radiation fins in accordance with the configuration of the semiconductor elements. A traction converter includes plural semiconductor elements included in a traction converting circuit and a cooler to radiate heat from the plural semiconductor elements to outside air, the cooler including a heat receiving block, plural heat pipes and plural heat radiation fins, the plural semiconductor elements being arrayed on one surface of the heat receiving block, heat receiving parts of the plural heat pipes being buried in the opposite surface of the heat receiving block, heat radiation parts of the plural heat pipes being erectly provided so as to protrude from the heat receiving block, the plural heat radiation fins being joined to the heat radiation parts. In the cooler, three semiconductor elements are provided in a cooling wind flow direction, and, when a region at which the plural heat radiation fins are provided is divided in the cooling wind flow direction into three of an up-wind region, a mid-wind region and a down-wind region, a heat radiation fin surface area at the up-wind region is in a range of 0.33 to 0.42 times of a heat radiation fin surface area at the down-wind region, and a heat radiation fin surface area at the mid-wind region is in a range of 0.42 to 0.63 times of the heat radiation fin surface area at the down-wind region. | 01-15-2015 |
20150049533 | Power Converter - In a power converter, cooling of the power converter is extremely important for improving a power conversion performance. Specifically, a DC smoothing capacitor module stored in a housing of the power converter is heat-sensitive, and in order to secure the performance, efficient cooling of the capacitor module is required. In addition, reducing the heat entering from the outside as much as possible is required. | 02-19-2015 |
20150131353 | POWER SUPPLY DEVICE - According to one embodiment, a power supply device includes a main circuit board including a switching circuit, a transformer board opposite the main circuit board and including a transformer, and an intermediate cooling plate between the main circuit board and the transformer board and configured to cool at least one of a heat-producing element of the switching circuit and the transformer. | 05-14-2015 |
20160007500 | POWER CONVERTER APPARATUS - A power converter apparatus is provided, which includes a horizontal switching device, a control switching device connected with the horizontal switching device and for controlling drive of the horizontal switching device, and a heat insulating member disposed between the horizontal switching device and the control switching device and for reducing that heat generated from the horizontal switching device is transferred to the control switching device. | 01-07-2016 |
20160012938 | CONNECTION BAR ARCHITECTURE FOR HIGH-POWER CONVERTER | 01-14-2016 |
20160128239 | Modular Scalable Liquid Cooled Power System - A scalable liquid cooled power system using a number of modularized, hot-plug, hot-swap, and scalable liquid-cooled power conversion modules mounted on mating mounting assemblies. A modularized, scalable liquid coolant manifolds and liquid cooling management system provides coolant circulation through the power conversion modules. The system optionally includes a highly scalable system control and administration system, and optionally provides the facility for on-board liquid-to-air heat exchanger system, or off-board cooling using an external heat exchanger system. | 05-05-2016 |