Relay, power distribution unit, and vehicle

Abstract

The application relates to a relay, a power distribution unit and a vehicle. The relay comprises a relay body, an electrode fixed at the top of the relay body, a heat dissipation module fixed at the bottom of the relay body in a detachable manner, a heat conduction plate fixedly connected with the electrode in a detachable manner, a bracket made of metal, one end of the bracket being connected with the heat conduction plate and the other end being connected with the heat dissipation module, and an insulating heat conduction pad arranged between the bracket and the heat dissipation module. The relay has the advantages of simple structure, convenient installation, good heat dissipation effect and low cost.

Description

Technical Field

[0001] This application relates to the field of electrical control technology, and more specifically, to a relay, a power distribution unit provided with the relay, and a vehicle equipped with the power distribution unit. Background Technology

[0002] A relay is an electrical control device widely used in transportation, power systems, automatic control systems, communication equipment, and household appliances. With the development of electronic technology, the application scenarios for relays are becoming increasingly widespread, and the performance requirements are also becoming more stringent. Especially in high-power applications, heat dissipation has become one of the key factors limiting relay performance. Utility Model Content

[0003] According to this application, a relay is provided, the relay comprising: Relay body; Electrodes, which are fixed at the top of the relay body; The heat dissipation module is detachably fixed at the bottom of the relay body; A heat-conducting plate is detachably fixedly connected to the electrode; A bracket, made of metal, with one end connected to the heat-conducting plate and the other end connected to the heat dissipation module; and An insulating thermally conductive pad is disposed between the bracket and the heat dissipation module.

[0004] Optionally, in the relay as described above, the electrodes include input electrodes and output electrodes, and the heat-conducting plate includes a first heat-conducting plate and a second heat-conducting plate, and the support includes a first support and a second support. The first heat-conducting plate is detachably fixedly connected to the input electrode, one end of the first bracket is connected to the first heat-conducting plate, and the other end of the first bracket is connected to the heat dissipation module. The second heat-conducting plate is detachably fixed to the output electrode, one end of the second bracket is connected to the second heat-conducting plate, and the other end of the second bracket is connected to the heat dissipation module.

[0005] Optionally, in the relay as described above, the first heat-conducting plate and the second heat-conducting plate are the same size and arranged symmetrically with respect to the center of the relay body; and / or The first and second brackets are the same size and are arranged symmetrically with respect to the center of the relay body; and / or The first and second supports are made of one of the following: copper, aluminum, copper alloy, aluminum alloy, or copper-aluminum alloy; and / or The first heat-conducting plate is integrally formed with the first bracket, and the second heat-conducting plate is integrally formed with the second bracket.

[0006] Optionally, in the relay as described above, the relay body has an outwardly extending partition between the input electrode and the output electrode; and / or The relay includes a positive relay and a negative relay; and / or The insulating thermal pad is provided with an insulating film; and / or The heat dissipation module includes a liquid-cooled heat dissipation structure; and / or The heat dissipation module is fixed to the bottom of the relay body by bolt connection; and / or The heat-conducting plate is fixedly connected to the electrode by bolts.

[0007] Furthermore, according to this application, a relay is also provided, the relay comprising: Relay body; Electrodes, which are fixed at the top of the relay body; The heat dissipation module is detachably fixed at the bottom of the relay body; A heat-conducting plate, which is detachably fixedly connected to the electrode; and The bracket is made of thermally conductive and insulating material, wherein one end of the bracket is connected to the heat-conducting plate and the other end is connected to the heat dissipation module.

[0008] Optionally, in the relay as described above, the electrodes include input electrodes and output electrodes, and the heat-conducting plate includes a first heat-conducting plate and a second heat-conducting plate, and the support includes a first support and a second support. The first heat-conducting plate is detachably fixedly connected to the input electrode, one end of the first bracket is connected to the first heat-conducting plate, and the other end of the first bracket is connected to the heat dissipation module. The second heat-conducting plate is detachably fixed to the output electrode, one end of the second bracket is connected to the second heat-conducting plate, and the other end of the second bracket is connected to the heat dissipation module.

[0009] Optionally, in the relay as described above, the first heat-conducting plate and the second heat-conducting plate are the same size and arranged symmetrically with respect to the center of the relay body; and / or The first and second brackets are the same size and are arranged symmetrically with respect to the center of the relay body; and / or The first and second scaffolds are made of diamond or graphene; and / or The first heat-conducting plate is integrally formed with the first bracket, and the second heat-conducting plate is integrally formed with the second bracket; and / or A thermal pad is provided between the first bracket and the heat dissipation module, and a thermal pad is provided between the second bracket and the heat dissipation module.

[0010] Optionally, in the relay as described above, the relay body has an outwardly extending partition between the input electrode and the output electrode; and / or The relay includes a positive relay and a negative relay; and / or The heat dissipation module includes a liquid-cooled heat dissipation structure; and / or The heat dissipation module is fixed to the bottom of the relay body by bolt connection; and / or The heat-conducting plate is fixedly connected to the electrode by bolts.

[0011] In addition, according to this application, a power distribution unit is also provided, wherein the power distribution unit is provided with the aforementioned relay.

[0012] Furthermore, according to this application, there is also a vehicle equipped with the aforementioned power distribution unit.

[0013] It is understood that the relay of this application has advantages such as simple structure, convenient installation, and low cost. This relay can quickly dissipate heat from the electrodes through components such as the support, thereby achieving efficient cooling. Attached Figure Description

[0014] The disclosure of this application will become more readily understood with reference to the accompanying drawings. It will be readily understood by those skilled in the art that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this application. Furthermore, similar numbers in the drawings are used to denote similar components, wherein: Figure 1 A three-dimensional structural schematic diagram of an embodiment of the relay disclosed in this application is shown as an example; and Figure 2 An exploded structural diagram of an embodiment of a relay disclosed in this application is shown as an example. Detailed Implementation

[0015] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. First, it should be noted that the directional terms such as up, down, left, right, front, back, inner, outer, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0017] With the continuous development of new energy technologies, hydrogen fuel cells, with their green and energy-saving characteristics, are gradually entering the transportation field. In new energy vehicles, the power distribution unit is used to distribute the electrical power of the power battery (e.g., battery stack) and / or external power source among multiple components of the vehicle, such as the motor, on-board transformer unit, heating devices, and air conditioning compressor. Relays, as traditional power distribution switches, are an important component within the power distribution unit.

[0018] Figure 1 The structure of one embodiment of the relay according to this application is shown. The relay 10 includes a relay body 100, electrodes 200, a heat dissipation module (not shown), a heat-conducting plate 300, a bracket 400, and an insulating heat-conducting pad 500, etc. Figure 1As shown, the electrode 200 (e.g., a positive or negative electrode) is fixed at the top of the relay body 100 and can extend outward from the relay body 100, while the heat dissipation module is fixed at the bottom of the relay body 100 in a detachable manner, such as by bolt connection. Those skilled in the art will readily recognize that the heat dissipation module may include a liquid-cooled heat dissipation structure, for example, a heat dissipation structure provided with pipes for circulating cooling water. The heat-conducting plate 300 is detachably fixed to the electrode 200, for example by bolt connection (e.g., via conductive bolts 700). The bracket 400 is made of metal, such as copper, aluminum, copper alloy, aluminum alloy, or copper-aluminum alloy, and one end of the bracket 400 is connected to the heat-conducting plate 300, and the other end is connected to the heat dissipation module. The insulating thermally conductive pad 500 is disposed between the bracket 400 and the heat dissipation module to ensure sufficient contact between the bracket 400 and the heat dissipation module and to provide insulation. Furthermore, the surface of the insulating thermally conductive pad 500 may be provided with an insulating film 600 to further enhance the insulation effect. Therefore, the relay structure according to this application is simple, low in cost, and can efficiently solve the heat dissipation problem.

[0019] In other optional embodiments, in conjunction with the above embodiments, the electrode 200 includes an input electrode 210 and an output electrode 220, and the heat-conducting plate 300 includes a first heat-conducting plate 310 and a second heat-conducting plate 320, and the bracket 400 includes a first bracket 410 and a second bracket 420. Specifically, the first heat-conducting plate 310 is detachably and fixedly connected to the input electrode 210 by means of bolts, one end of the first bracket 410 is connected to the first heat-conducting plate 310, and the other end of the first bracket 410 is connected to the heat dissipation module. The second heat-conducting plate 320 is detachably and fixedly connected to the output electrode 220 by means of bolts, one end of the second bracket 420 is connected to the second heat-conducting plate 320, and the other end of the second bracket 420 is connected to the heat dissipation module, such as... Figure 2 As stated above.

[0020] Continue to refer to Figure 1 and 2 The first heat-conducting plate 310 and the second heat-conducting plate 320 are the same size and are arranged symmetrically with respect to the center of the relay body 100. Furthermore, the first bracket 410 and the second bracket 420 are the same size and are arranged symmetrically with respect to the center of the relay body 100. For ease of manufacturing, the first heat-conducting plate 310 is integrally formed with the first bracket 410, and the second heat-conducting plate 320 is integrally formed with the second bracket 420.

[0021] To prevent creepage, the relay body 100 is provided with an outwardly extending partition 110 between the input electrode 210 and the output electrode 220.

[0022] It should be noted that the relay 10 may include a positive relay and a negative relay. That is, the input terminal of the positive relay can be electrically connected to the positive terminal of the power supply, and the output terminal of the positive relay can be electrically connected to the positive terminal of the load; while the input terminal of the negative relay can be electrically connected to the negative terminal of the power supply, and the output terminal of the negative relay can be electrically connected to the negative terminal of the load.

[0023] In addition, this application provides another embodiment of a relay, which includes a relay body 100, electrodes 200, a heat dissipation module (not shown), a heat-conducting plate 300, and a bracket 400. It should be noted that the relay in this embodiment differs from the one described above in that the bracket 400 is made of a high-performance heat-dissipating material with insulating properties. Therefore, the insulating thermal pad in the previous embodiment can be omitted, further reducing the number of related components of the relay. In this case, the bracket 400 includes a first bracket 410 and a second bracket 420, which can be made of thermally conductive and insulating materials such as diamond or graphene. Furthermore, a thermal pad is provided between the first bracket 410 and the heat dissipation module, and a thermal pad is also provided between the second bracket 420 and the heat dissipation module. The connection relationships of other components within the relay can be referred to the previous embodiment, and will not be repeated here.

[0024] In addition, this application also provides a power distribution unit, which is provided with the aforementioned relay 10.

[0025] In addition, this application also provides a vehicle equipped with the aforementioned power distribution unit. The vehicle can be a hydrogen fuel cell vehicle.

[0026] The foregoing has provided several specific embodiments to illustrate the relay, power distribution unit, and vehicle of this application in detail. These examples are for illustrative purposes only and are not intended to limit the scope of this application. Various modifications and improvements can be made by those skilled in the art without departing from the spirit and scope of this application. Therefore, all equivalent technical solutions should fall within the scope of this application and be defined by the claims of this application.

Claims

1. A relay, characterized in that, The relay (10) includes: Relay body (100); Electrode (200), which is fixed at the top of the relay body (100); The heat dissipation module is detachably fixed to the bottom of the relay body (100); A heat-conducting plate (300) is detachably fixed to the electrode (200); A bracket (400), made of metal, is connected at one end to the heat-conducting plate (300) and at the other end to the heat dissipation module; and An insulating thermally conductive pad (500) is disposed between the bracket (400) and the heat dissipation module.

2. The relay according to claim 1, characterized in that, The electrode (200) includes an input electrode (210) and an output electrode (220), and the heat-conducting plate (300) includes a first heat-conducting plate (310) and a second heat-conducting plate (320), and the bracket (400) includes a first bracket (410) and a second bracket (420). The first heat-conducting plate (310) is detachably fixedly connected to the input electrode (210), one end of the first bracket (410) is connected to the first heat-conducting plate (310), and the other end of the first bracket (410) is connected to the heat dissipation module. The second heat-conducting plate (320) is detachably fixedly connected to the output electrode (220), one end of the second bracket (420) is connected to the second heat-conducting plate (320), and the other end of the second bracket (420) is connected to the heat dissipation module.

3. The relay according to claim 2, characterized in that, The first heat-conducting plate (310) and the second heat-conducting plate (320) are the same size and are arranged symmetrically with respect to the center of the relay body (100); and / or The first bracket (410) and the second bracket (420) are the same size and are arranged symmetrically with respect to the center of the relay body (100); and / or The first support (410) and the second support (420) are made of one of copper, aluminum, copper alloy, aluminum alloy, or copper-aluminum alloy; and / or The first heat-conducting plate (310) is integrally formed with the first bracket (410), and the second heat-conducting plate (320) is integrally formed with the second bracket (420).

4. The relay according to any one of claims 2-3, characterized in that, The relay body (100) has an outwardly extending partition (110) between the input electrode (210) and the output electrode (220); and / or The relay (10) includes a positive relay and a negative relay; and / or The insulating thermal pad (500) is provided with an insulating film (600); and / or The heat dissipation module includes a liquid-cooled heat dissipation structure; and / or The heat dissipation module is fixed to the bottom of the relay body (100) by bolt connection; and / or The heat-conducting plate (300) is fixedly connected to the electrode (200) by bolts.

5. A relay, characterized in that, The relay (10) includes: Relay body (100); Electrode (200), which is fixed at the top of the relay body (100); The heat dissipation module is detachably fixed to the bottom of the relay body (100); A heat-conducting plate (300) is detachably fixed to the electrode (200); and The bracket (400) is made of thermally conductive and insulating material, wherein one end of the bracket (400) is connected to the heat-conducting plate (300) and the other end is connected to the heat dissipation module.

6. The relay according to claim 5, characterized in that, The electrode (200) includes an input electrode (210) and an output electrode (220), and the heat-conducting plate (300) includes a first heat-conducting plate (310) and a second heat-conducting plate (320), and the bracket (400) includes a first bracket (410) and a second bracket (420). The first heat-conducting plate (310) is detachably fixedly connected to the input electrode (210), one end of the first bracket (410) is fixedly connected to the first heat-conducting plate (310), and the other end of the first bracket (410) is connected to the heat dissipation module. The second heat-conducting plate (320) is fixedly connected to the output electrode (220) in a detachable manner. One end of the second bracket (420) is fixedly connected to the second heat-conducting plate (320), and the other end of the second bracket (420) is connected to the heat dissipation module.

7. The relay according to claim 6, characterized in that, The first heat-conducting plate (310) and the second heat-conducting plate (320) are the same size and are arranged symmetrically with respect to the center of the relay body (100); and / or The first bracket (410) and the second bracket (420) are the same size and are arranged symmetrically with respect to the center of the relay body (100); and / or The first support (410) and the second support (420) are made of diamond or graphene; and / or The first heat-conducting plate (310) is integrally formed with the first bracket (410), and the second heat-conducting plate (320) is integrally formed with the second bracket (420); and / or A thermal pad is provided between the first bracket (410) and the heat dissipation module, and a thermal pad is provided between the second bracket (420) and the heat dissipation module.

8. The relay according to any one of claims 6-7, characterized in that, The relay body (100) has an outwardly extending partition (110) between the input electrode (210) and the output electrode (220); and / or The relay (10) includes a positive relay and a negative relay; and / or The heat dissipation module includes a liquid-cooled heat dissipation structure; and / or The heat dissipation module is fixed to the bottom of the relay body (100) by bolt connection; and / or The heat-conducting plate (300) is fixedly connected to the electrode (200) by bolts.

9. A power distribution unit, characterized in that, The power distribution unit is provided with a relay (10) according to any one of claims 1-8.

10. A vehicle, characterized in that, The vehicle is equipped with a power distribution unit according to claim 9.

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