41results about "Relay ventilation/cooling/heating" patented technology

The invention provides a radio frequency MEMS switch and a preparation method thereof, and relates to the technical field of radio frequency MEMS switches. A substrate of the radio frequency MEMS switch comprises a first surface and a second surface which are opposite to each other, a Peltier refrigeration module is embedded in the substrate, the Peltier refrigeration module comprises a refrigeration end and a heat dissipation end, and the refrigeration end is closer to the first surface compared with the heat dissipation end. The driving electrode is arranged on the first surface, and the first electrode and the second electrode are also arranged on the first surface. The cantilever beam is electrically connected with the first electrode, the cantilever beam is arranged on the side, away from the substrate, of the driving electrode, and the cantilever beam is configured to be electrically connected with the second electrode under driving of the driving electrode. The orthographic projection of the joint of the cantilever beam and the first electrode on the substrate is overlapped with the area where the Peltier refrigeration module is located, and / or the orthographic projection of the joint of the cantilever beam and the second electrode on the substrate is overlapped with the area where the Peltier refrigeration module is located, in-situ active cooling can be carried out, and thermal creep aggravation is restrained.

Disclosed is a circuit structure with a new structure that can quickly reduce the heat generation of the connection part of a heat-generating component. The circuit structure (10) includes: a heat-generating component (12) that generates heat due to energization; an energization member (16) connected to the connection part (14) of the heat-generating component (12); a connection member (18) that connects the energization member (16) to the connection part (14); and a heat capacity increasing component (20) that makes thermal contact with the connection part between the energization member (16) and the connection part (14) to increase the heat capacity of the connection part (14) of the heat-generating component (12).

To suppress reignition of an arc generated at a contact, in an electromagnetic relay.SOLUTION: An electromagnetic relay comprises a case, a first fixed terminal, a movable contact piece, a gas inflow space, and a gas passage. The case includes a base. The first fixed terminal is held by the base. The first fixed terminal includes: a first fixed contact arranged in the case separately from the base in a first direction; a contact supporting part arranged between the first fixed contact and the base to support the first fixed contact; and a first extending part bent from the contact supporting part, penetrating through the base in the first direction. The movable contact piece includes a first movable contact opposed to the first fixed contact in the first direction. The gas inflow space is formed between the base and the contact supporting part in the case. The gas passage penetrates through the base in the first direction to communicate between the gas inflow space and the exterior of the case.SELECTED DRAWING: Figure 4

To provide an electric connection box with excellent heat dissipation properties.SOLUTION: An electrical connection box 1 includes a cooling body 2 capable of absorbing heat from an outer surface thereof and dissipating heat to the outside, and a pair of current-carrying bodies 3A, 3B arranged to interpose the cooling body 2 therebetween. Each of the pair of current-carrying bodies 3A, 3B includes a housing portion 20, electronic components 30, 40 arranged inside the housing portion 20, and a bus bar 50 that is provided on a mounting wall 21 which is a box wall of the housing portion 20 and to which the electronic components 30, 40 are electrically connected, and is arranged such that the outer surface of the mounting wall 21 faces the outer surface of the cooling body 2. The electronic component 30 includes a plurality of terminals 31 that are provided on a side wall of the electronic component 30 and connected to the bus bar 50, and a movable contact 32 that is provided inside the electronic component 30 and capable of mechanically switching between electrical conductivity and non-conductivity between the plurality of terminals 31, and is configured such that the movable contact 32 is located farther from the side wall than the plurality of terminals 31 inside the electronic component 30.SELECTED DRAWING: Figure 2

The application relates to a wiring power-off integrated relay and a cable connection and protection method, which comprises a trapezoidal cylinder body, a plurality of piston rods uniformly arranged around the outer periphery of the trapezoidal cylinder body; an easy sublimation substance is arranged in the cylinder body; a long strip arc surface-shaped conductive bridge is fixed to the outer end of the piston rod; the outer end of the conductive bridge is covered with a long strip arc surface-shaped insulating baffle; electric connectors for connecting external wires are arranged on the two end faces of the trapezoidal cylinder body respectively; the piston rod drives the conductive bridge to simultaneously electrically contact or disconnect with the two electric connectors; in the initial state, the insulating baffles are circumferentially enclosed and start to cover the wires with wire insulation skins; the wiring power-off integrated relay and the cable connection and protection method can realize wire connection and relay circuit protection in one, realize integration of the whole with the wires, are small in size, and do not need to be installed in an electric box or a switch cabinet.

An electromagnetic relay suppresses retriggering of an arc generated at a contact. The electromagnetic relay includes a housing, a first fixed terminal, a movable contact piece, a gas inflow space, and a gas passage. The housing includes a base. The first fixed terminal is held by the base. The first fixed terminal includes: a first fixed contact configured to be separated from the base in a first direction inside the housing; a contact support portion disposed between the first fixed contact and the base and supporting the first fixed contact; and a first extension portion bent from the contact support portion and penetrating the base in the first direction. The movable contact piece includes a first movable contact opposed to the first fixed contact in the first direction. The gas inflow space is formed inside the housing between the base and the contact support portion. The gas passage penetrates the base in the first direction and communicates the gas inflow space with the outside of the housing.

The invention discloses a vehicle power supply system and a thermal management method, device and equipment in a vehicle power supply process, and the method comprises the steps: obtaining the working temperature of a relay in a process that the relay is in a closed state to enable a power battery to supply power to a load on a vehicle; if the working temperature of the relay is greater than or equal to the first temperature threshold value, starting a second liquid cooling device to cool the relay; after the second liquid cooling device is started, if the first liquid cooling device is in the starting state, the temperature and flow of cooling liquid output by the cooling liquid supply device are adjusted according to the cooling requirement of the power battery, and if the first liquid cooling device is in the closing state, the temperature and flow of the cooling liquid output by the cooling liquid supply device are adjusted. The temperature and flow of cooling liquid output by the cooling liquid supply device are adjusted according to the cooling requirement of the relay. According to the invention, the technical problem that the performance and safety of the relay are not high in the power supply process of the electric vehicle is solved.

The utility model discloses an energy-saving intelligent solid-state relay. An intelligent solid-state relay body in the energy-saving intelligent solid-state relay comprises an aluminum alloy heat dissipation shell, a function induction PCB, a power semiconductor chip and a control panel. The radiator is arranged on the aluminum alloy heat dissipation shell, and the function induction PCB is fixed on a leading-out terminal of the power semiconductor chip. The function induction PCB comprises a plurality of heat-sensitive sensors, the intelligent solid-state relay body is further filled with heat-conducting resin, and the heat-sensitive sensors are arranged at the positions, tightly attached to the power semiconductor chip, in the heat-conducting resin. And the radiator, the leading-out wire of the function induction PCB and the leading-out terminal are connected with the control panel. Therefore, the junction temperature and the shell temperature of the power semiconductor chip can be determined through the plurality of heat-sensitive sensors, and the current of the power semiconductor chip can be controlled, that is, after the junction temperature exceeds a certain temperature, the output current is automatically reduced and limited within a certain range, and meanwhile, the shell temperature and the radiator are combined, so that the energy-saving effect is achieved.

An electromagnetic relay (1) is provided with a housing (2), a contact case (3), a first fixed terminal (11), a movable contact piece (13), and a first conductive member (6). The contact housing is disposed on the inner side of the housing. The first fixed terminal is arranged on the inner side of the housing. The first fixed terminal includes a first fixed contact (11a) disposed on an inner side of the contact housing. The movable contact piece is disposed on the inner side of the contact housing. The movable contact piece includes a first movable contact point (13a) facing the first fixed contact point. The first conductive member is fixed to the first fixed terminal. The first conductive member includes a first inner portion (61) disposed on the inner side of the housing and a first outer portion (62) disposed on the outer side of the housing. The housing includes a first heat dissipation portion (41) that dissipates heat generated by the first inner side portion of the first conductive member. The first heat dissipation portion is disposed adjacent to at least a portion of the first inner side portion of the first conductive member.

The utility model discloses a thermal overload relay convenient to connect, which comprises a thermal overload relay body, a plurality of wiring terminals are arranged at two ends of the thermal overload relay body, and the wiring terminals are provided with conductive plates. A first fixing part and a second fixing part which are step-shaped are arranged at the upper part and the lower part of each current-conducting plate, fastening screws are arranged on the first fixing part and the second fixing part, a plurality of heat dissipation fins are arranged on the back surface of each current-conducting plate at equal intervals, a base is arranged at the bottom of each current-conducting plate, and a partition plate is arranged on each base and is arranged between the current-conducting plates. Through the step-shaped first fixing part and the step-shaped second fixing part, the positions of the copper noses fixed on the first fixing part and the second fixing part are in an up-and-down staggered relation, the two copper noses are prevented from interfering with each other, heat of the current-conducting plate is absorbed through the heat dissipation fins, temperature rise of the current-conducting plate is controlled, and heat dissipation efficiency is improved. The product has the advantages of interference prevention and temperature rise control.

The present invention addresses the problem of limiting an increase in the temperature of a filler disposed inside an outer case. An electromagnetic relay (A1) comprises: a fixed terminal (60); a movable contact element (50); an inner case (20); a yoke (72); an outer case (10); and a first filler (81). The movable contact element (50) is disposed under the fixed terminal (60) to contact the fixed terminal (60). The inner case (20) houses the movable contact element (50) and has an opening at the bottom. The yoke (72) is disposed under the inner case (20) so as to cover the opening portion of the inner case (20). The outer case (10) houses the inner case (20). The first filler (81) is disposed in a gap between the inner case (20) and the outer case (10). The first filler (81) is disposed above a lower surface (73) of the yoke (72).

A circuit assembly includes: a relay; a case that houses the relay; and a bus bar including a fastening part configured to be fastened to a connection part of the relay, and a heat transfer part configured to be in thermally conductive contact with an external heat dissipation target, wherein the relay includes an excitation connector part that is provided on a side surface of the relay, and that is open in a direction opposite to a direction in which the connection part is open, the fastening part of the bus bar protrudes upward from the heat transfer part disposed on a bottom wall side of the case so as to be inclined at an angle larger than 90°, and the excitation connector part of the relay in which the connection part connected to the fastening part of the bus bar is open obliquely upward.

The invention provides a radio frequency MEMS switch and a preparation method thereof, and relates to the technical field of radio frequency MEMS switches. A substrate of the radio frequency MEMS switch comprises a first surface and a second surface which are opposite to each other, a Peltier refrigeration module is embedded in the substrate, the Peltier refrigeration module comprises a refrigeration end and a heat dissipation end, and the refrigeration end is closer to the first surface compared with the heat dissipation end. The driving electrode is arranged on the first surface, and the first electrode and the second electrode are also arranged on the first surface. The cantilever beam is electrically connected with the first electrode, the cantilever beam is arranged on the side, away from the substrate, of the driving electrode, and the cantilever beam is configured to be electrically connected with the second electrode under driving of the driving electrode. The orthographic projection of the joint of the cantilever beam and the first electrode on the substrate is overlapped with the area where the Peltier refrigeration module is located, and / or the orthographic projection of the joint of the cantilever beam and the second electrode on the substrate is overlapped with the area where the Peltier refrigeration module is located, in-situ active cooling can be carried out, and thermal creep aggravation is restrained.

A battery distribution unit (100) for a battery module (102) has a housing (110) including a bottom (120) configured to mount to a battery housing (104) of the battery module and including a component cavity (114). A contactor (140) received in the component cavity has a contactor housing (150) having a top end (154) and a bottom end (156). Terminals (242) at the bottom end of the contactor are coupled to corresponding termination ends (170) of corresponding stationary contacts (160) and a heat exchanger cap (134) at the bottom end of the contactor. The heat exchanger cap is disposed in the component cavity at the bottom of the housing. The heat exchanger cap is in thermal communication with the stationary contacts of the contactor and is configured to be in thermal communication with the battery housing of the battery module to dissipate heat from the stationary contacts into the battery housing of the battery module.

A relay of the present disclosure includes an insulation cover (21), a first yoke plate (22), a contact assembly (3), a driving assembly (4) and a pressure relief valve assembly (5). The first yoke plate (22) connects with the insulation cover (21) and encloses a contact chamber (27) with the insulation cover (21). The first yoke plate (22) is provided with a pressure relief hole (221). The driving assembly (4) connects with the movable contact piece (32) and drives the movable contact piece (32) move. The pressure relief valve assembly (5) is on the first yoke plate (22) and configured to close the pressure relief hole (221) when a gas pressure in the contact chamber (27) is less than a threshold and configured to be broken to open the pressure relief hole (221) when the gas pressure in the contact chamber (27) is greater than or equal to the threshold.

A relay of the present disclosure includes an insulation cover (21), a first yoke plate (22), a contact assembly (3), a driving assembly (4) and a pressure relief valve assembly (5). The first yoke plate (22) connects with the insulation cover (21) and encloses a contact chamber (27) with the insulation cover (21). The first yoke plate (22) is provided with a pressure relief hole (221). The driving assembly (4) connects with the movable contact piece (32) and drives the movable contact piece (32) move. The pressure relief valve assembly (5) is on the first yoke plate (22) and configured to close the pressure relief hole (221) when a gas pressure in the contact chamber (27) is less than a threshold and configured to be broken to open the pressure relief hole (221) when the gas pressure in the contact chamber (27) is greater than or equal to the threshold.

To improve heat dissipation in a fixed terminal and also reduce a thermal effect from the fixed terminal to a substrate, while preventing an increase in size of an electromagnetic relay.SOLUTION: An electromagnetic relay comprises a housing, a first fixed terminal, a movable contact piece, and a drive unit. The first fixed terminal includes a first main member and a first layer member. The first main member protrudes from the inside of the housing to the outside thereof. The first layer member is a component separate from the first main member. The first layer member is stacked on the first main member. The first layer member protrudes from the inside of the housing to the outside thereof. The first layer member has a shape branching from the first main member. The movable contact piece is disposed inside the housing and faces the first fixed terminal. The drive unit moves the movable contact piece in a contact direction and in a separating direction.SELECTED DRAWING: Figure 5

Provided is a power relay assembly. A power relay assembly according to an exemplary embodiment of the present invention comprises: a support plate equipped with at least one electrical element on one surface thereof and comprising a plastic material having heat dissipation and insulation properties; and at least one bus bar which comprises a contact part which is electrically connected to the electrical element and directly contacts one surface of the support plate, wherein the contact part of the bus bar is fixed to one surface of the support plate.

The utility model relates to the technical field of electronic relays, in particular to a novel building control electronic relay which comprises an electronic relay body, a heat dissipation mechanism and an installation mechanism are arranged on the electronic relay body, the heat dissipation mechanism comprises an installation box and a heat dissipation frame, an installation groove is formed in the installation box, and the heat dissipation frame is arranged in the installation box. A mounting groove is formed in the electronic relay body, a heat conducting sheet is arranged between the mounting groove and the electronic relay body, positioning grooves are formed in the two sides of the mounting groove, positioning plates are arranged between the positioning grooves and the heat dissipation frame, and a fan is arranged on the heat dissipation frame. The electronic relay body can still be kept in a normal working temperature range under a high-load condition, and the radiating frame is convenient to assemble or take down, so that a worker can conveniently clean dust on the fan and replace the heat-conducting fins, and the long-term radiating efficiency of the electronic relay body is ensured.

The utility model belongs to the technical field of solid-state relays, and particularly relates to a three-phase solid-state relay which comprises a three-phase solid-state relay main body and a heat dissipation aluminum sheet, the three-phase solid-state relay main body is fixedly installed on the heat dissipation aluminum sheet, a heat dissipation assembly is installed outside the three-phase solid-state relay main body, and the heat dissipation assembly is fixedly installed on the heat dissipation aluminum sheet. The heat dissipation assembly comprises a U-shaped shell, and the inner wall of the shell is attached to the outer wall of the three-phase solid-state relay body. Heat generated by operation of the three-phase solid-state relay main body is led out through the heat dissipation aluminum sheet, air flow generated by the fan assembly enters the interior of the three-phase solid-state relay main body through the upper ventilation holes for heat dissipation and then is discharged through the lower ventilation holes and the air outlet holes, heat dissipation is conducted on the heat dissipation aluminum sheet again, and the heat dissipation efficiency of the three-phase solid-state relay main body is improved. And compared with the prior art, the direct heat dissipation effect of the three-phase solid-state relay main body is improved.

A contactor includes a housing defining a cavity. The contactor includes a switch assembly received in the cavity. The switch assembly includes first and second fixed contacts received in the cavity and a movable contact movable within the cavity between a mated position and an unmated position. The movable contact engages the first and second fixed contacts to electrically connect the first and second fixed contacts in the mated position. The switch assembly includes a coil assembly in the cavity operated to move the movable contact between the unmated position and the mating position. The contactor includes a heat transfer device coupled to the housing. The heat transfer device is thermally coupled to the first fixed contact and the second fixed contact to dissipate heat from the first fixed contact and the second fixed contact.

To improve a heat radiation property on a fixed terminal while suppressing increase in a size of an electromagnetic relay.SOLUTION: An electromagnetic relay comprises: a housing; a first fixed terminal; a moving contact piece; a drive device; and a first heat radiation member. The first fixed terminal protrudes to the outside of the housing from the inside of the housing. The moving contact piece is arranged in the housing. The moving contact piece is opposed to the first fixed terminal. The drive device moves the moving contact piece in a contacting direction and a separating direction. The first heat radiation member is arranged on the outside of the housing. The first heat radiation member is a separate body from the first fixed terminal. The first heat radiation member is connected to the first fixed terminal.SELECTED DRAWING: Figure 7

A relay of the present disclosure includes an insulation cover (21), a first yoke plate (22), a contact assembly (3), a driving assembly (4) and a pressure relief valve assembly (5). The first yoke plate (22) connects with the insulation cover (21) and encloses a contact chamber (27) with the insulation cover (21). The first yoke plate (22) is provided with a pressure relief hole (221). The driving assembly (4) connects with the movable contact piece (32) and drives the movable contact piece (32) move. The pressure relief valve assembly (5) is on the first yoke plate (22) and configured to close the pressure relief hole (221) when a gas pressure in the contact chamber (27) is less than a threshold and configured to be broken to open the pressure relief hole (221) when the gas pressure in the contact chamber (27) is greater than or equal to the threshold.

The utility model belongs to the technical field of solid-state relays, and particularly relates to a large-current heat-dissipation solid-state relay, which comprises a solid-state relay main body, a control circuit board is mounted in the solid-state relay main body, and a load input terminal, a load output terminal and a control signal terminal are electrically connected onto the control circuit board. A fuse is electrically connected between the load input terminal and the load output terminal, and the control circuit board is electrically connected with a control signal indicating lamp. According to the utility model, the threaded column is rotated to drive the sliding seat to slide so as to open or close the accommodating groove, the sliding seat is opened through outward sliding, the installation of the lead and the binding post module is completed, and after the installation is completed, the sliding seat is pushed into the accommodating groove for protection, thereby effectively preventing the electric shock at the wiring position.

The utility model relates to the technical field of automobile battery protection, in particular to an automobile solid-state relay which comprises a shell, a first circuit board, a second circuit board, an input binding post and an output binding post are arranged in the shell, and the first circuit board and the second circuit board are sequentially arranged on one inner wall of the shell. According to the utility model, the first circuit board and the second circuit board are arranged on the shell, the electronic elements with smaller power are arranged on the second circuit board, the electronic elements with larger power are arranged on the first circuit board, and the fin radiator is arranged on the outer wall opposite to the inner wall of the shell, so that the radiating effect of the internal components of the relay can be improved; the input binding post and the output binding post are both installed on the side face, close to the second circuit board, of the first circuit board, and the wiring end of the input binding post and the wiring end of the output binding post both penetrate through the second circuit board and extend out of the shell, so that the input binding post and the output binding post do not need extra placing space. And the overall size can be reduced.

The invention relates to the technical field of nanometer relays, in particular to a pilot protection nanometer relay which comprises a pilot protection nanometer relay body and a chip, and the pilot protection nanometer relay body comprises a sampling value module, a data processing module, a logic judgment module, a time management module and a communication management module. The communication management module is composed of a signal sending sub-module, a signal analysis sub-module, a clock synchronization verification sub-module and the like, the pilot protection nanometer relay architecture can adapt to pilot protection of different principles, the applicability is enhanced on the premise that the quick action is guaranteed, the pilot protection nanometer relay architecture is a protection general architecture, and the safety of the pilot protection nanometer relay architecture is improved. The pilot protection nanometer relay is suitable for single-terminal protection and multi-terminal protection, the flexibility is high, and compared with an off-chip serial structure interaction mode, the pilot protection nanometer relay performs information interaction through a high-speed bus and a chip, so that the correctness and transmission efficiency of data transmission in the chip can be effectively improved, and the safety performance of a power business function is improved.

Embodiments of the present disclosure are directed to an isolation housing for an electro-hydrodynamic (EHD) air mover device. The isolation housing includes the EHD air mover device, a shield placed on top of the EHD air mover device forming an upper wall of the isolation housing, a printed circuit board (PCB) assembly forming a bottom wall of the isolation housing, and a chassis made of one or more non-conductive materials and forming side walls of the isolation housing. The PCB assembly carries signal connections for a positive bias voltage signal, a negative bias voltage signal, and / or a ground signal. The chassis is shaped to hold the EHD air mover device in a defined position within the isolation housing. A first surface of the chassis is affixed to the shield, and a second surface of the chassis opposite to the first surface is affixed to the PCB assembly.

The utility model provides a power conversion device which comprises a shell, a circuit board, at least one relay, a first heat conduction plate and a first heat conduction pad, the first heat conduction plate, the first heat conduction pad, the circuit board and the at least one relay are all arranged in the shell, and the at least one relay and the first heat conduction pad are arranged on the same side of the circuit board. One end of the first heat-conducting plate is connected with the shell, and the other end is connected with one side, deviating from the circuit board, of the first heat-conducting pad. Heat generated by the relay is transmitted to the circuit board, the circuit board transmits the heat to the first heat conducting plate through the first heat conducting pad, and then the first heat conducting plate transmits the heat to the shell to be dissipated. According to the power conversion device, the shell serves as a radiator, the first heat conduction pad and the first heat conduction plate serve as heat dissipation paths of the relay, heat is conducted to the shell and then dissipated, the structure is simple, and the heat dissipation effect is good.

A relay of the present disclosure includes an insulation cover, a first yoke plate, a contact assembly, a driving assembly and a pressure relief valve assembly. The first yoke plate is connected with the insulation cover and encloses a contact chamber with the insulation cover. The first yoke plate is provided with a pressure relief hole. The driving assembly is connected with the movable contact piece and configured to drive the movable contact piece move. The pressure relief valve assembly is arranged on the first yoke plate and configured to close the pressure relief hole when a gas pressure in the contact chamber is less than a threshold and configured to be broken to open the pressure relief hole when the gas pressure in the contact chamber is greater than or equal to the threshold.

This relay comprises: a case (10) which forms an accommodation chamber (10a) and has an inner wall (10b) exposed to the atmosphere in the accommodation chamber; fixed contacts (30a, 30b, 30c) that are accommodated in the accommodation chamber in a state of being exposed to the atmosphere in the accommodation chamber; movable contacts (51a, 51b, 51c) that are accommodated in the accommodation chamber in a state of being exposed to the atmosphere in the accommodation chamber and are configured to be able to come into contact with and separate from the fixed contacts; a first terminal and a second terminal (40a, 40b) that are exposed to the outside of the case; and heat conduction parts (20a, 20b, 20c, 20d, 20e) that have higher thermal conductivity than the case and are fixed to the case. The movable contacts are brought into contact with the fixed contacts to enable conduction between the first terminal and the second terminal, and the movable contacts are separated from the fixed contacts to disrupt conduction between the first terminal and the second terminal. The heat conduction parts promote heat radiation from the atmosphere in the accommodation chamber to the atmosphere outside the case through the inner wall.