| PANASONIC ECOLOGY SYSTEMS GUANGDONG CO., LTD. Patent applications |
| Patent application number | Title | Published |
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| 20150337862 | STRUCTURE FOR REDUCING NOISE OF VENTILATING FAN - Disclosed is a structure for reducing noise of a ventilating fan. The structure includes an orifice plate fixed on a scroll casing and is shaped to be an annular and semi-surrounding hollow structure in order to match with the shape of an air inlet of the scroll casing, and to cover only the air inlet of the scroll casing. The noise generated by an air blower of the ventilating fan can be directed along a bell mouth of the scroll casing of the ventilating fan after being emitted from the air inlet of the scroll casing, and then can be smoothly sucked by the orifice plate. The sucked-in noise can repeatedly collide with the orifice plate and be diffused, thereby the energy being gradually weakened and the sound pressure thereof being decreased. | 11-26-2015 |
| 20150110626 | CEILING MOUNTED VENTILATION FAN WITH ILLUMINATION - A ventilation fan with illumination includes a housing, a fan, and lighting equipment in the housing. The housing includes a first opening communicating with an air outlet, the first opening communicating with a duct, and a second opening that communicates with an interior space, The lighting equipment includes a light, a cover in the housing that surrounds the light periphery, the cover reflecting light and transmitting the light into the space through the second opening, and a restrictor that restricts passage of air between the light periphery and the lighting cover. An air intake gap is provided between a lower end of the cover and an edge of the second opening and introduced through the second opening and the air intake gap, is discharged through the first opening into the duct, the edge of the second opening being located below the lower end of the cover. | 04-23-2015 |
| 20140248041 | VENTILATING FAN FOR HEATING - A ventilating fan for heating, includes a main body frame provided with an opening, a fan casing provided with a fan therein, a heater assembly fixed at an air outlet of the fan casing and a thermostat for detecting an indoor temperature, and the thermostat is embedded in an air-passageway wall. | 09-04-2014 |
| 20140187139 | VENTILATION DEVICE - Ventilation device is mounted on inner wall in wind tunnel communicating between indoor and outdoor sides, having a ventilation louver. The ventilation louver includes a louver frame and a movable louver. Horizontal distance from position of gravity center of the movable louver to the inner wall is greater than horizontal distance from the movable louver shaft to the inner wall. A lever is disposed at a lower part of the louver frame to move in a left-right direction along bottom end face of the lower part of the louver frame. A connection element is provided to connect the movable louver with the lever between the movable louver and the louver frame, which is configured to be a slidable structure in the up-down direction, and transform the movement in the left-right direction of the lever to opening and closing movement of the movable louver around the movable louver shaft. | 07-03-2014 |
| 20140169771 | HEATING AND VENTILATING FAN - A heating and ventilating fan including a frame, a motor with fan blades, a casing, a heating device, and an air path switching plate disposed at an air outlet of the casing for switching outlets of the ventilating fan and a timing motor. The timing motor and the air path switching plate are fixed on either side of a frame wall. The air path switching plate is connected to the timing motor shaft through a connection part, and controls the air path switching plate to rotate by a constant angle in a single direction. A spring having a first end fixed to the frame wall, and a second end rotating synchronously with the air path switching plate controls the air path switching plate to rotate in an opposite direction to the single direction. When the timing motor is switched off, the spring returns the air path switching plate to its rest position. | 06-19-2014 |
| 20140112781 | CEILING MOUNTED VENTILATION FAN WITH ILLUMINATION - A ventilation fan with illumination includes a housing, a fan, and lighting equipment in the housing. The housing includes a first opening connected to an air outlet, the first opening communicating with a duct, and a second opening that communicates with an interior space, The lighting equipment includes a light, a cover in the housing that surrounds the light periphery, the cover reflecting light and transmitting the light into the space through the second opening, and a restrictor that restricts passage of air between the light periphery and the lighting cover. An air intake gap is provided between a lower end of the cover and an edge of the second opening and introduced through the second opening and the air intake gap, is discharged through the first opening into the duct, the edge of the second opening being located below the lower end of the cover. | 04-24-2014 |
| 20140078718 | VENTILATION DEVICE - A ventilating fan, includes a frame provided with an opening, a fan disposed in the frame, a panel covering the opening of the frame and allowing air passing through and a lighting device disposed in the panel. The lighting device includes a lampshade, in which a lighting part is placed, and a circuitry box of a controller for controlling the lighting part. A gap is formed in a connection between the circuitry box and the panel such that a water discharge structure communicated with outside of the circuitry box is formed. Advantages of the present invention includes that a gap communicated with outside of the circuitry box is provided in a connection between the circuitry box and the panel, which allows water to be discharged through the gap from inside of the panel, even water would enter into inside of the circuitry box, thus safety operation of the product is ensured. | 03-20-2014 |
| 20140063783 | LIGHTING DEVICE FOR VENTILATING FAN - A lighting device for a ventilating fan comprising a power pack module and a light-emitting module composed of a lighting louver and a radiator, wherein first positioning lugs projected out of a horizontal projection plane of the power pack module are formed on the top of the power pack module and fixed on the light-emitting module by screws; and a through hole which a cable, used for supplying power for a light-emitting unit, runs through is respectively formed on a side face of the radiator making contact with the power pack module and a side face of the power pack module making contact with the radiator. The lighting device for the ventilating fan further comprises hooks formed on the radiator and a second positioning lug formed on the power pack module, wherein the hooks and the second positioning lug are used for fixing the lighting device on the ventilating fan. | 03-06-2014 |
| 20140037478 | VENTILATING FAN - Disclosed is a ventilating fan including a ventilating fan body provided with a motor, a frame having ventilating air outlets, and fan blades, an adapter and an electric element box. The ventilating air outlets include a top air outlet provided on a top face of the frame of the ventilating fan and a side air outlet provided on a side face of the frame of the ventilating fan which are communicated with each other. The adapter is provided with a raised structure adapted to the ventilating air outlet. With this structure, the height of the ventilating fan is reduced while air volume is ensured, so that the ventilating fan is adapted to be mounted onto various ceilings, and the cost can be saved while mounting of the adapter is simplified. | 02-06-2014 |
| 20130315731 | CELING MOUNTED VENTILATION FAN WITH ILLUMINATION - The ceiling mounted ventilation fan with illumination employs a configuration in which a second opening for guiding light from an illumination unit into the room is formed in a lower part of a main housing and in which a air inlet on a fan casing of a fan unit is provided so as to open toward upper part of the main housing. Thus the air inlet of the fan unit opens in a direction opposite to the second opening communicating with inside of the room. As a result, sounds such as operation noises from the fan unit that are transmitted to outside of the fan unit chiefly through the air inlet can be made to resist being transmitted through the second opening into the room, so that the noises can be reduced. | 11-28-2013 |
| 20130266443 | CEILING MOUNTED VENTILATION FAN WITH ILLUMINATION - A ceiling mounted ventilation fan with illumination capable of suppressing conduction of noise to inside of a room is provided. In the fan, a restriction member is provided for restricting passage of air between a lighting cover and a periphery of a lighting part, the lighting cover having a reflecting surface for reflecting light from the lighting part to lead the light to the inside of the room. A gap for air intake is formed between a lower end of the lighting cover and an edge of the indoor-side opening. Thus, air introduced into the main housing through the gap is discharged into the duct by the fan unit and conduction of noises produced by the fan unit to the room inside with the noise directivity enhanced in the lighting cover can be suppressed by the restriction member, so that conduction of noise to the room inside can be suppressed. | 10-10-2013 |
| 20130143479 | HEATING VENTILATOR FOR BATHROOM - A heating ventilator for bathroom includes a frame, a motor mounted with fan blades, a volute casing, an air path switching plate located at the air outlet of the volute casing for switching the air outlet of a ventilator main body, a heater, and a control electric circuit mechanism for operating the motor, the air path switching plate and the heater. The air path switching plate and the heater are configured in a separate and overlapping manner in the height direction of the ventilator main body. The center line of the fan blades and a tongue of the volute casing are both offset from the center line of the main body and are located at the same side. The center line of the main body is horizontally aligned and overlapped with the center line of the air path switching plate and the center line of the heater. | 06-06-2013 |
| 20130137361 | VENTILATING FAN - The present invention discloses a ventilating fan mounted on a wall of an indoor side of a wind path therethrough from the indoor side to an outdoor side. The ventilating fan includes a ventilating fan hood, a filtering member, a ventilating fan body, and a ventilating fan mounting member. The filtering member is integrally formed by a frame provided with an engagement that is engaged with the ventilating fan body and a filtering screen located within the frame. The ventilating fan according to the present invention has the advantages that the filtering member can be fixedly mounted to the ventilating fan body in a simple structure manner without using fasteners such as screws, so as to facilitate the operation and save the working time. Moreover, the filtering member is not blown off to fall off when the ventilating fan hood is removed. In addition, the mounting of the filtering member in a reverse order is eliminated. | 05-30-2013 |
| 20130137360 | VENTILATING FAN - The present invention discloses a ventilating fan including a ventilating fan body located on the indoor side, an outdoor pipe hood located on the outdoor side, a ventilating fan mounting member located between the ventilating fan body and the outdoor pipe hood, and a panel removably mounted to the front of the ventilating fan body, the ventilating fan mounting member includes a cylinder and a flange, the outdoor pipe hood includes a pipe hood base and a back cover, the pipe hood base includes a base plate with a circular opening and a pipeline fixing ring removably mounted to the base plate; and, a hollow expansion pipe being connected to the cylinder of the ventilating fan mounting member at one end and connected to the pipeline fixing ring at the other end. The present invention has advantages of easy mounting of the expansion pipe. | 05-30-2013 |
| 20130130613 | FIRE DAMPER FOR VENTILATING FAN - A fire damper for a ventilating fan includes a shutter and a frame provided with a flange. A preformed opening is provided on the frame. The frame is further provided with a movable component for opening or closing the preformed opening. This has the advantage of being able to share parts with others. | 05-23-2013 |
| 20130084793 | CEILING MOUNTED VENTILATION FAN - A ceiling mounted ventilation fan comprises a main housing including a first opening communicating with a duct and a second opening communicating with inside of a room, and a fan unit including a fan casing having an air inlet opened in the main housing, and the fan casing includes a first engagement part releasably engaged with the first opening of the main housing, and a second engagement part releasably engaged with an inner wall of the main housing, positioning of the fan casing in an installation position is achieved in a state that the first engagement part is engaged with the first opening and the second engagement part is engaged with the inner wall of the main housing, and a state of the engagement can visually be confirmed through the second opening in a state that the positioning is achieved. | 04-04-2013 |
| 20130072105 | VENTILATING FAN - A ventilating fan includes a sirocco fan disposed in a box-shaped body and an adapter connected to an air outlet of the sirocco fan. The sirocco fan is composed of two opposite scroll plates with scroll shapes and a casing plate sandwiched between the two scroll plates. An overall air inlet of the sirocco fan is disposed on the first scroll plate and a central line of the air outlet of the adapter is offset towards the second scroll plate. The present invention is advantageous in that no turbulence is generated at the adapter and the wind amount of the ventilating fan is thus ensured and noise is reduced. Therefore, the present invention can provide a small air blowing device with high efficiency and improve stability of performance of the product. | 03-21-2013 |
| 20130026334 | VENTILATING FAN MOUNTING BRACKET - Disclosed is a mounting bracket assembly for a ventilating fan including a first bracket, a second bracket, and a bracket fixing member, the first bracket is provided with a U-shaped groove and is provided at an end thereof with a first supporting leg folded into an L-shaped; the second bracket is provided with a U-shaped groove and is provided at an end thereof with a second supporting leg folded into an L-shaped, and a root portion of the second supporting leg is provided at two sides thereof with slots; the second bracket is engaged into the U-shaped groove of the first bracket and can be slid in the U-shaped groove of the first bracket to adjust the length of the bracket assembly; the bracket fixing member is provided with a C-shaped groove; the first bracket is engaged and inserted into the C-shaped groove and can be slidable in the C-shaped groove; the bracket fixing member fixes the first bracket and the second bracket combined together to a ventilating fan body by engagement of the C-shaped groove with the first bracket. With the above configuration, the bracket assembly has improved stability, can be operated easily, and can be installed conveniently. | 01-31-2013 |
| 20120275938 | VENTILATING FAN - A ventilating fan comprises a ventilating fan body, a ventilating fan mounting member, and a power supply case. A power supply wire disposed in the ventilating fan body to be connected to a blower is provided with an internal terminal at a leading end of the power supply wire. The power supply case projects from the power supply opening to be located outside the cylinder of the ventilating fan mounting member, and is fixed to the ventilating fan mounting member from the indoor side. An external terminal is mounted on an indoor side of the power supply case. An external electric wire for supplying electric power to the ventilating fan is connected with the external terminal in the power supply case, and the internal terminal is connected with the external terminal, so that the connection operation becomes simpler. | 11-01-2012 |
| 20120164936 | VENTILATION DEVICE - A ventilation device comprises: a body, a fan disposed in the body, and an adapter connected with an air outlet of the body. Two or more pipe coupling parts are disposed in sequence from a side of an air inlet of the adapter to a side of an air outlet of the adapter, and each pipe coupling part is provided with a protruding circular ring with a diameter larger than that of the respective pipe coupling part at a root thereof. An air guide structure is disposed in the adapter, a pipe is fitted over the pipe coupling part and is abutted against the protruding circular ring located at the root to be fixed, and the air guide structure is engaged to an inside of the protruding circular ring of the adapter. The ventilation device according to the present invention has the following advantages. Pipes with different outer diameters can be conveniently installed to the ventilation device. In addition, excellent seal and reduction of air resistance and noise can be achieved. | 06-28-2012 |
| 20120107096 | AIR EXCHANGE FAN AND CIRCUIT BOARD BOX THEREFOR - An air exchange fan comprises: a frame with an opening, a helicoid housing with an air suction inlet disposed in the frame, an air blower disposed in the housing, and, an elongated circuit board box mounted at the air suction inlet side of the housing; a silencing plate is mounted above the outer peripheral of the inlet, and has a streamlining structure formed by outwardly expanding from the inlet in an axial direction of a rotation axis of the air blower, the rotation axis of which being served as the center, within a range that is from a tongue of the housing to a location with a 90 degrees angled from the tongue in a direction opposing to the rotation direction, and has a curved chamfered shape which mates with the peripheral shape of the inlet. A circuit board box for such air exchange fan is also disclosed. | 05-03-2012 |
| 20110002775 | CENTRIFUGAL FAN AND NOISE REDUCTION METHOD IN CENTRIFUGAL FAN - A centrifugal fan having a sound reduction effect for noises in a wide frequency range is provided. The centrifugal fan comprises a motor to which an impeller is connected, a casing which surrounds the impeller and which has a bell-mouth-like suction port, and a bell-mouth-like orifice which has a suction port being concentric with the suction port of the casing and having a diameter as large as that of the suction port of the casing, in an outer shell, providing a plurality of protrusions in a resonant space surrounded by the orifice, the casing, and the outer shell, and providing depressions which are formed so as to be interposed between the protrusions. | 01-06-2011 |
| 20100284803 | VENTILATOR - A ventilator ( | 11-11-2010 |
| 20100197216 | VENTILATOR WITH ILLUMINATING UNIT AND HUMAN SENSOR - Disclosed is a ventilator with an illuminating unit and a human sensor, which includes a ventilator body and a cover. An air inlet, a lamp shield and a human sensor are provided in the cover. The lamp shield and the air inlet are mounted at the center of the cover while the human sensor is mounted at the periphery of the cover, and the installation orientation of the cover is changeable. | 08-05-2010 |
| 20100081370 | ASSEMBLY OF PIPE UNIT AND PIPE HOOD FOR VENTILATING FAN - An assembly of pipe hood and pipe unit for a ventilating fan, comprising a front cover, a rear cover and a pipe unit, characterized in that: a baffle is vertically provided in the pipe unit to divide the pipe into an air inlet pipe and an air outlet pipe on the left and right sides respectively; a partition plate is vertically provided in the rear cover corresponding to the baffle to divide the space enclosed by the front cover and the rear cover into an air inlet side and an air outlet side on the left and right sides respectively; an external air inlet opening and an external air outlet opening are provided on the outer side of the rear cover on the left and right sides respectively; an internal air inlet opening and an internal air outlet opening are provided on the inner side of the rear cover on the left and right sides respectively; an air inlet passage and an air outlet passage are formed in parallel to each other on the left and right sides respectively. Since the inflow air and the outflow air flow to the left and right sides respectively, the contaminated air discharged from the pipe unit can be prevented from mixing with the fresh air entering the room, and the ventilating effect can be ensured. | 04-01-2010 |
| 20100000711 | MULTIFUNCTIONAL VENTILATING FAN - A multifunctional ventilating fan comprises a machine body, a panel provided with an air inlet and an air outlet. The machine body includes a first area, a second area, and a third area separated by several partition plates. The first area is provided with a first heat exchanger and a ventilating blower. A exhaust port of the ventilating blower is communicated with the outdoor. The second area is provided with a second heat exchanger and a circulating blower. The third area is provided with a compressor. The air inlet of the panel is communicated with the first area to form a first air path. The air inlet of the panel, the first area, the second area and the air outlet of the panel are communicated in turn to form a second air path. A first valve is provided in the second air path for isolating the first area so that a third air path is formed by the air inlet of the panel, the second area and the air outlet of the panel communicated in turn. The present invention can effect ventilating, dehumidifying, heating, cooling and the like functions. | 01-07-2010 |
| 20090275280 | VENTILATION FAN UNIT WITH A HEATER - A ventilation fan unit with a heater, including: a frame with an opening provided at the underside of the frame; a cover having an air outlet and an air inlet provided at the opening of the frame; a snail-shaped casing with an air exit provided in the frame; a circulating fan enclosed in the snail-shaped casing; and a heating portion including a spiral heater mounted at the air exit of the snail-shaped casing, wherein the heating portion is communicated with the circulating fan through the air exit, wherein an axis of a spiral shape of the heater is in parallel with a rotation axis of the circulating fan, wherein the rotation axis of the circulating fan is located obliquely above the axis of the spiral shape of the heater. | 11-05-2009 |
| 20090091218 | TEMPERATURE PROTECTION DEVICE FOR BRUSHLESS DC MOTOR - A temperature protection device for a brushless DC Motor, wherein a thermal fusing type protector is provided at a depression formed on a casing of the plastic-packaged brushless DC Motor. In this way, the thermal fusing type protector can be provided conveniently at a position where the casing temperature is highest after plastic packaging, and if the protector is fused due to high temperature, it can be replaced easily. | 04-09-2009 |
