62results about "Relay ventilation/cooling/heating" patented technology

A battery disconnect unit includes: a relay; a busbar connected to a terminal of the relay; a heatsink; and an insulating sheet located between a cooler and a joint section. The cooler is a coolant plate. The joint section is a section in which the terminal of the relay, the busbar, and the heatsink are fastened together by a screw that is an example of a fastening member.

The invention relates to the technical field of solid-state relays, in particular to an anti-interference solid-state relay which comprises a solid-state relay body, heat dissipation holes are formed in the two ends of the middle of the end face of one side of the solid-state relay body, and heat dissipation cylinders are fixedly connected to the positions, located at the heat dissipation holes, of the inner wall of the solid-state relay body. A heat dissipation structure is arranged in the heat dissipation barrel, the heat dissipation structure is used for cooling the interior of the solid-state relay body, an expansion assembly is arranged in the middle of the inner bottom surface of the solid-state relay body, and the expansion assembly is used for triggering the heat dissipation structure to work. Connecting grooves are formed in the four corners of the upper end of the solid-state relay body, fixing bolts and conducting strips are arranged in the connecting grooves, and the connecting assembly comprises the fixing bolts and the conducting strips. Compared with the prior art, the problems that in the prior art, a heat dissipation structure triggering mode is not suitable for a strong magnetic environment, and an electric connection mode has potential safety hazards are solved.

Provided is an electrical connection box including a housing casing for housing a relay, and a heat transfer sheet for transferring heat from the relay to the housing casing, the electrical connection box including: a bus bar provided between a top surface and an inside surface that correspond to each other in the housing casing so as to oppose the top surface and the inside surface; a first holding portion protruding from the inside surface and holding the bus bar via the heat transfer sheet; and a second holding portion protruding from the top surface and holding the bus bar.

The present invention relates to a structure, packaging mechanism and packaging process of a solid-state relay, including: a housing; a circuit board; arranged in the housing; a heat sink, attached to the circuit board; a sealing glue, injected into the housing and covering the circuit board; a radiator, arranged on the sealing glue; a fan, arranged on the housing; wherein the radiator is provided with a heat sink foot; the heat sink foot passes through the sealing glue and contacts the heat sink; a first space is formed in the radiator; a second space is formed in the heat sink foot; the first space and the second space are interconnected, and a medium is stored in the first space and the second space; the first space expands, and accordingly, the upper end of the radiator contacts the fan; the first space contracts, and accordingly, the upper end of the radiator is away from the fan. The problem that the heat sink base is large in size in the existing solution, the solid-state relay is further enlarged after the fan is installed, and the solid-state relay cannot be installed in some special positions is solved.

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 utility model discloses a relay support easy to radiate heat, comprising two side frames arranged in bilateral symmetry, a relay installation suspension frame extending along a straight line is connected between the side frames, the relay installation suspension frame is provided with a linear guide rail horizontally extending left and right, the linear guide rail is provided with process holes arranged at intervals along the length direction of the linear guide rail, and the process holes are communicated with the relay installation suspension frame. Each auxiliary hole is provided with a heat-conducting piece connected with the hole wall of the auxiliary hole in a matched mode, the heat-conducting pieces are arranged behind the linear guide rails, and every two adjacent heat-conducting pieces are arranged in parallel. The LED lamp further comprises at least one heat dissipation hole transversely penetrating through all the heat conduction pieces, the heat dissipation holes are horizontally arranged in a left-right extending mode, and heat dissipation strips matched with the heat dissipation holes in section shape are arranged in the heat dissipation holes in a penetrating mode. The relay support has the advantages of being convenient to install, fast in heat dissipation, complete in overall function and high in practicability.

The utility model relates to the technical field of relays, in particular to a relay pin structure beneficial to heat dissipation, which comprises a base, a static reed arranged on the base, and a pin A and a static contact arranged on the static reed, the pin A comprises a first bending part, a second bending part, a first straight plate part and a second straight plate part, the second bending part and the first bending part are arranged at an interval, the first straight plate part and the first bending part are integrally formed, the second straight plate part and the second bending part are integrally formed, and the first straight plate part is formed by protruding one side of the pin A through the first bending part; the second straight plate part is formed by protruding from the other side of the pin A through the second bent part, and the first straight plate part and the second straight plate part both protrude out of the base. The heat dissipation device is compact in structure and ingenious in design, achieves efficient heat dissipation of the relay, is high in heat dissipation performance, and prolongs the service life of the relay.

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.

To improve the heat dissipation characteristics of a relay structure without increasing its size.SOLUTION: A relay structure 1 includes a first conductor 2, a second conductor 3, a first fixed contact portion 5 and a second fixed contact portion 6 provided in an outer shell portion 4 and partially exposed, a movable contact portion 7 enclosed in the outer shell portion 4, a first fixture 8 for fixing the first fixed contact portion 5 and the first conductor 2, and a second fixture 9 that fixes the second fixed contact portion 6 and the second conductor 3. The first fixture 8 and the second fixture 9 are composed of rod-shaped metals 10A and 10B having screw grooves on their outer circumferences, and canopy portions 11A and 11B for pressing the first conductor 2 and the second conductor 3, through holes 12A and 12B are provided through the rod-shaped metals 10A and 10B, and rod-shaped heat conductors 13A and 13B having higher thermal conductivity than the first fixture 8 and the second fixture 9 are respectively arranged in the through holes 12A and 12B.SELECTED DRAWING: Figure 1

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

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.

The present invention relates to a high-current relay using a novel push structure, comprising a plastic push rod, a moving contact spring, a moving armature, and a static contact, wherein the moving contact spring faces the static contact and a moving contact is arranged at the position facing the moving contact, the push rod comprises a connecting portion, a push spring, and an expanding portion extending along the moving contact spring, the connecting portion is used to be connected to the moving armature, the push spring and the expanding portion are not fixedly connected to the moving contact spring, the expanding portion is located on the side of the moving contact spring facing the static contact, the push spring is located on the side of the moving contact spring away from the static contact, the push spring comprises a heat dissipation portion bent to increase the heat dissipation area, one end of the heat dissipation portion is connected to the push rod, and the other end faces the moving contact spring, the push rod can drive the moving contact spring to approach or move away from the static contact through the expanding portion and the push spring, and there is a gap between the expanding portion and the push spring, so that when the push spring abuts against the moving contact spring, there is a gap between the expanding portion and the moving contact spring.

To provide an electric connection box having excellent heat dissipation properties.SOLUTION: An electrical connection box 1 includes first and second cooling bodies 2A, 2B, and an electric conductor 3 arranged to be sandwiched between the first and second cooling bodies 2A, 2B. The electric conductor 3 includes a housing portion 20, electronic components 30, 40 arranged in the housing 20, and a bus bar 50 that is provided on the first and second mounting walls 21A, 21B, which are the two box walls of the housing 20, and electrically connected to the electronic components 30 and 40. The outer surface of each of the first and second mounting walls 21A and 21B and the outer surface of each of the first and second cooling bodies 2A, 2B are arranged to face each other. The electronic component 30 includes a plurality of terminals 31 that are provided on the side walls 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 switching between electrical conductivity and non-conductivity between the plurality of terminals 31. The movable contact 32 is located to be farther from the side walls than the plurality of terminals 31.SELECTED DRAWING: Figure 2

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 relates to the technical field of relays, in particular to a relay working state monitoring device which comprises a relay body, a wire holder is arranged on the rear side of the relay body, an operation panel is detachably connected to the front side of the relay body, first rectangular openings are formed in the left side and the right side of the relay body respectively, and heat conduction plates are arranged in the two first rectangular openings respectively. A second rectangular opening is formed in the top of the relay body, a semiconductor chilling plate is arranged in the second rectangular opening, a temperature sensor is arranged at the bottom of the inner wall of the relay body, and a monitoring controller and a wireless communication module are arranged at the position, close to the front side, of the bottom of the relay body. According to the relay working state monitoring device, the temperature in the relay body can be monitored in real time through the temperature sensor. Once the temperature abnormally rises, the temperature sensor can immediately send data to the monitoring controller, so that the relay is ensured to work in a safe temperature range, and equipment faults and potential safety hazards caused by overheating are avoided.