| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 335201000 | With arc-suppression or extinguishing means | 21 |
| 20090072935 | Relay - A relay is disclosed that includes a first opening and closing part including an openable and closeable first gap; a second opening and closing part including an openable and closeable second gap, the second opening and closing part being placed side by side with the first opening and closing part so that the first gap and the second gap are arranged side by side; a magnetization driving part configured to cause the first opening and closing part and the second opening and closing part to simultaneously operate; and a permanent magnet configured to apply a magnetic field on the first gap of the first opening and closing part and the second gap of the second opening and closing part in the same direction. | 03-19-2009 |
| 20090284335 | ELECTROMAGNETIC SWITCH AND MAKING METHOD THEREOF - The present invention provides a low-noise electromagnetic switch applied to an electric car, whereby noise generated by vibration from an inner switch is prevented from being transmitted to the outside box by filling up a filler-up material between the inner switch and the outside box. | 11-19-2009 |
| 20090315654 | Switching Device, Use Thereof And A Method For Switching - A device for switching in and out a load with respect to an alternating voltage feeder has two mechanical switches connected in series in a current path between the load and the feeder and each having a by-pass branch with at least one member with ability to block current therethrough in at least a blocking direction and conduct current therethrough in at least one direction. A unit is adapted to control a procedure of a switching out and switching in by synchronization with the current in the feeder and the voltage of the feeder, respectively. | 12-24-2009 |
| 20100026429 | Switching Device, High Power Supply System and Methods for Switching High Power - Embodiments of the invention relate to a switching device, a high power supply system and methods for switching high power including a relay and a power semiconductor switch arranged in parallel to the relay. | 02-04-2010 |
| 20100066471 | Electromagnetic relay - An electromagnetic relay includes a housing having an accommodating space therein, a magnet coil in the accommodating space to generate electromagnetic force when energized, a moving contact disposed in the accommodating space and driven by the coil, a fixed contact in the accommodating space, the moving contact engaged with or disengaged from the fixed contact as a result of whether the moving contact is driven or not, a breathing hole formed in the housing to communicate between the accommodating space and an exterior space of the housing, and a flame propagation route along which a flame of flammable gas ignited by arc generated between the moving contact and the fixed contact propagates toward the breathing hole. The route includes a flame extinguishment clearance that is set to have such a gap size that the flame is extinguished when passing through the clearance. | 03-18-2010 |
| 20130063232 | CONTACT DEVICE AND ELECTROMAGNETIC SWITCH USING CONTACT DEVICE - The present invention provides a contact device capable of narrowing a gap between a fixed contactor and a movable contactor and reducing the number of parts and the production costs, and an electromagnetic switch that uses the contact device. The contact device has a pair of columnar fixed contactors ( | 03-14-2013 |
| 20130106543 | ELECTROMAGNETIC CONTACTOR | 05-02-2013 |
| 20130127571 | CONTACT DEVICE AND ELECTROMAGNETIC SWITCH USING CONTACT DEVICE - A contact device includes a pair of fixed contactors fixed to one side of an insulation container with a predetermined space therebetween and having a columnar shape with a tip end contact surface protruding at lease inside the insulation container, and a movable contactor disposed to be capable of contacting with and separating from the pair of fixed contactors. Surfaces of the pair of fixed contactors facing the movable contactor are formed of annular peripheral walls having a concave part at a center thereof. An annular arc is formed between the annular peripheral wall and the movable contactor when the contact device is in an open state. | 05-23-2013 |
| 20130229248 | ELECTROMAGNETIC CONTACTOR - An electromagnetic contactor has an arc extinguishing chamber housing a contact mechanism having a pair of fixed contacts and a movable contact that contacts with the pair of fixed contacts. The arc extinguishing chamber has a plate-shaped fixed contact support insulating substrate including through holes to fix at least the pair of fixed contacts and formed with a metal foil on an outer peripheral circumferential edge of one surface by a metalizing process. The pair of fixed contacts and a metal cylindrical body are brazed and joined to the metal foils of the fixed contact support insulating substrate, and an insulating cylindrical body is disposed on an inner peripheral surface of the metal cylindrical body. | 09-05-2013 |
| 20130234812 | MOUNTING OF SPLITTER PLATES IN THE SWITCH POLE OF A CIRCUIT BREAKER - An embodiment of the invention relates to a switch pole of a circuit breaker having two pole shells between which are disposed, in the assembled state, at least one switching contact, current-carrying elements and an arc quenching device having an arc runner plate and at least one splitter plate delimiting an arc chute, wherein at least one slot for accommodating the splitter and/or arc runner plate is provided between the pole shells. In at least one embodiment, there is provided inside between the pole shells a functional component having a least one slot spaced apart from the pole shells which is used to accommodate the at least one splitter and/or arc runner plate. | 09-12-2013 |
| 20130234813 | ELECTROMAGNETIC CONTACTOR, ELECTROMAGNETIC CONTACTOR GAS ENCAPSULATING METHOD, AND ELECTROMAGNETIC CONTACTOR MANUFACTURING METHOD - An electromagnetic contactor has a base plate having an aperture hole; an arc extinguishing chamber having a fixed terminal and a pipe; and a bottomed tubular cap in which one end thereof is open. An arc extinguishing chamber connection portion is formed by the arc extinguishing chamber and a first connection member having a tube portion connected to the arc extinguishing chamber and a flange portion contacting with the base plate. A cap connection portion is formed by the cap and a second connection member having a tube portion connected to the cap and a flange portion connected to the base plate. The flange portions of the first and second connection members are attached to one surface and the other surface of the base plate accordingly. The arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole of the base plate. | 09-12-2013 |
| 20140022035 | ELECTROMAGNETIC RELAY - The present invention provides an electromagnetic relay, comprising a contact switching unit having a contact group which includes a pair of contacts in order to touch and separate; an electromagnet block which drives the contact switching unit to open and close the contacts; and an arc-extinguishing member having a connection member and permanent magnets, wherein the connection member is formed by connecting, via a middle part, opposing walls arranged in a direction perpendicular to the touch/separation direction of the contacts and permanent magnets are disposed on the opposing sections of the opposing walls. | 01-23-2014 |
| 20140028418 | ELECTROMAGNETIC RELAY - An electromagnetic relay including a contact switching unit formed by arranging at least two contact groups, in parallel with each other and perpendicular to the touch/separation direction of the contacts, each of the contact group includes a pair of contacts that can touch and separate; an electromagnet block that drives the contact switching unit to open and close the contacts; and an arc-extinguishing member comprising a connection member made from a magnetic material and formed by a connection of protrusions that respectively protrude from both sides of a middle part in the direction of the parallel arrangement of the contact groups and between the contact groups, and also comprising permanent magnets respectively disposed at least on the opposing positions of the protrusions located on both sides of the middle part. | 01-30-2014 |
| 20140104018 | ELECTROMAGNETIC CONTACTOR AND ELECTROMAGNETIC CONTACTOR GAS ENCAPSULATING METHOD - An electromagnetic contactor has a base plate having an aperture hole; an arc extinguishing chamber including a fixed terminal having a vent portion and a pipe obliquely inserted from outside a wall surface and connecting the vent portion; and a bottomed tubular cap in which one end thereof is open. An arc extinguishing chamber connection portion is formed by the arc extinguishing chamber and a first connection member having a tube portion connected to the arc extinguishing chamber and a flange portion contacting with the base plate. A cap connection portion is formed by the cap and a second connection member having a tube portion connected to the cap and a flange portion connected to the base plate. The arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole of the base plate. | 04-17-2014 |
| 20140104019 | ELECTROMAGNETIC CONTACTOR AND ELECTROMAGNETIC CONTACTOR GAS ENCAPSULATING METHOD - An electromagnetic contactor includes a base plate having an aperture hole; an arc extinguishing chamber formed by a fixed terminal support insulating substrate and a cylinder portion; and a bottomed tubular cap in which one end thereof is open. An arc extinguishing chamber connection portion is formed by the arc extinguishing chamber and a first connection member having a flange portion. A cap connection portion is formed by the cap and a second connection member having a tube portion and a flange portion. The flange portion of the first connection member is attached to one surface of the base plate, and the flange portion of the second connection member is attached to the other surface of the base plate, so that the arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole of the base plate. | 04-17-2014 |
| 20140159837 | ELECTROMAGNETIC RELAY - An electromagnetic relay includes a first stationary contact; a second stationary contact that is aligned with the first stationary contact in a first direction; a first movable contact that is movable toward/away from the first stationary contact in a second direction perpendicular to the first direction; a second movable contact that is movable toward/away from the second stationary contact in the second direction; and a first permanent magnet and a second permanent magnet that face each other. A first contact part, formed by the first stationary contact and the first movable contact, and a second contract part, formed by the second stationary contact and the second movable contact, are interposed between the first permanent magnet and the second permanent magnet in the first direction. The first permanent magnet and the second permanent magnet extend in a third direction, which is perpendicular to the first direction and the second direction. | 06-12-2014 |
| 20140176268 | ELECTROMAGNETIC SWITCH - An electromagnetic switch has a contact device having a pair of fixed contacts fixed inside an arc extinguishing chamber housing and a movable contact disposed to contact with and separate from the fixed contacts; and an electromagnetic device having a movable plunger moving between an opened position wherein the movable contact separates from the fixed contacts and a closed position wherein the movable contact contacts with the fixed contacts and pressed down. The arc extinguishing chamber housing is provided with permanent magnets to extinguish an arc generated at an opening time when the movable contact separates from the fixed contacts from a state in the closed position wherein the movable contact is contacting with the fixed contacts. In a state wherein the movable plunger is in the opened position, a magnetic circuit is formed starting from the permanent magnets and returning to the permanent magnets through the movable plunger. | 06-26-2014 |
| 20150022296 | SWITCH - A switch has a pair of fixed contacts installed in an arc extinguishing container and disposed to maintain a predetermined space therebetween, and a movable contact disposed so as to come into and out of contact with the pair of fixed contacts. The arc extinguishing container includes an open-topped tub-shaped metal body, an insulating holding member which holds the pair of fixed contacts, disposed on an inner side of the tub-shaped metal body, opposite to the movable contact, and an open-bottomed tub-shaped resin cover which covers the pair of fixed contacts and the movable contact from an open edge face side of the tub-shaped metal body. A periphery of an open edge of the resin cover is sealed to a bottom surface of the tub-shaped metal body with an adhesive agent. | 01-22-2015 |
| 20150325390 | CONTACT DEVICE - The fixed contact member includes a fixed contact. The movable contact member includes a movable contact and is movable between a position where the movable contact is in contact with the fixed contact and a position where the movable contact is away from the fixed contact. The permanent magnet forms a magnetic field around the fixed contact. The case is for accommodating at least the fixed contact member and the movable contact member. Further, the case includes an accommodation part which is partitioned from an internal space of the case and is for accommodating the permanent magnet through an opening thereof directed to an outside of the case. | 11-12-2015 |
| 20150380193 | ELECTROMAGNETIC CONTACTOR - In an electromagnetic contactor, an arc generated when a movable contact separates from fixed contacts can be easily extinguished. The movable contact is disposed so as to be connectable to and detachable from the pair of fixed contacts disposed to maintain a predetermined interval inside a contact housing case having insulating properties, and an arc extinguishing chamber is formed in a position in which the movable contact and the pair of fixed contacts contact. At least the inner wall surface side of the arc extinguishing chamber contacting an arc is formed of a high thermal conductivity material having thermal conductivity higher than that of a synthetic resin molded material. | 12-31-2015 |
| 20160133404 | FRAMEWORK OF RELAY AND RELAY - A framework part of a relay and a relay. An inner hollow portion and peripheral windows are formed by the framework. The windows are communicated with the exterior of the framework and the hollow portion. At least one group of contactors that can correspondingly contact are accommodated in the hollow portion. An arc gap is formed between the contactors that can correspondingly contact. The windows are aligned with the arc gap from an outer side. A main body of the framework is a hollowed injection molding framework, and has multiple windows that are aligned with the arc gap from the outer side, so that, under the precondition of ensuring the structural strength, materials can be reduced and the cost can be reduced. The windows can be used for installing functional components such as magnetic steel, a resistant act clip or an arcing and are extinguishing piece. The framework is made be applicable to relays and breakers having more functions and requirements, so as to improve a scope of application of products to a great extent and facilitate reduction of molds and other manufacturing costs. | 05-12-2016 |
