Quick-release circuit board for new energy automobile

Abstract

The invention belongs to the technical field of printed circuit boards, and particularly relates to a quick-release circuit board for a new energy automobile, which comprises a circuit board main body and a plurality of multi-pin elements mounted on the circuit board main body, and further comprises a plurality of insulating pinch plates matched with the corresponding multi-pin elements, a plurality of pin clamping grooves are formed in the bottom of each insulating pinch plate; the pins of the multi-pin element are clamped into the corresponding pin clamping grooves; and the plurality of top plates are arranged above the circuit board main body, each top plate is provided with a pressing fixing mechanism, and the pressing fixing mechanisms are used for applying pressure to the insulating pinch plate. Through the buckling structure, the multi-pin element on the circuit board main body can be quickly disassembled and assembled, the maintenance is convenient, the influence of temperature rise on the contact stability of the pins and the electric contacts of the circuit board main body can be avoided, and meanwhile, the quick heat dissipation of the circuit board can be assisted.

Description

Technical Field

[0001] The present invention belongs to the technical field of printed circuit boards, and particularly relates to a quick-disassembly circuit board for new energy vehicles. Background Art

[0002] The BMS protection board of new energy vehicles is a core component of battery management, responsible for real-time monitoring of battery voltage, current, temperature and other parameters, and ensuring the safe operation of the battery and extending its life through functions such as balancing control, overcharge and over-discharge protection. At the same time, it also provides battery status data for the vehicle control system, and is a key component to ensure the performance and safety of new energy vehicles.

[0003] Currently, in order to improve the maintenance convenience of the BMS protection board, some circuit boards may adopt a quick-disassembly structure to improve the convenience of circuit board disassembly, such as a quick-disassembly circuit board for new energy vehicles disclosed in the patent publication number CN118474989B; in the field of new energy vehicles, the common quick-disassembly structure mainly targets the overall circuit board, while there are many multi-pin components such as integrated circuit chips and relays installed on the BMS protection board. The pins of these components are usually connected to the circuit board by soldering. When disassembling and assembling, it is necessary to heat each pin for disassembly, and then re-solder. This process is not only inefficient, but also due to the arrangement of multiple pins together, the solder joints between them are prone to contact phenomena, resulting in the need for rework, and the overall use effect is poor, unable to meet the requirements of efficient maintenance. Summary of the Invention

[0004] The purpose of the present invention is to solve the above problems and provide a quick-disassembly circuit board for new energy vehicles.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A quick-disassembly circuit board for new energy vehicles, including a circuit board main body and a plurality of multi-pin components installed on the circuit board main body, further including: A plurality of insulating buckles, which are matched with the corresponding multi-pin components, and a plurality of pin clamping grooves are opened at the bottom of each insulating buckle, and the pins of the multi-pin components are all clamped into the corresponding pin clamping grooves; A plurality of top plates, all arranged above the circuit board main body, and each of the top plates is provided with a pressing and fixing mechanism for applying pressure to the insulating buckle; A bottom support unit, installed below the circuit board main body, for supporting the bottom of the circuit board main body.

[0006] Preferably, each of the pressing and fixing mechanisms includes a pressing buckle arranged below the top plate, a threaded sleeve is fixedly inserted into the end face of the top plate, and a pressing column is threadedly connected to the threaded sleeve. The pressing column applies pressure to the insulating buckle through the pressing buckle, and an edge limiting component is jointly installed on the insulating buckle and the pressing buckle.

[0007] Preferably, the bottom support unit includes a bottom plate disposed below the main circuit board. A plurality of strip-shaped cavities corresponding to the positions of the top plates are formed inside the bottom plate. A heat conduction cover communicating with the strip-shaped cavities is fixedly installed on the end face of the bottom plate. The top of each heat conduction cover is fixedly connected to the bottom of the main circuit board. A cavity is formed inside each top plate, and a pressurizing and fixing mechanism corresponding to the position of the pressing buckle is arranged inside each cavity. A heat conduction and pressurizing mechanism is installed inside each heat conduction cover. Liquid through cavities are formed on both sides of the end face of the bottom plate, and each strip-shaped cavity communicates with the two liquid through cavities. Each heat conduction and pressurizing mechanism communicates with the cavity through the two liquid through cavities.

[0008] Preferably, each edge limiting component includes a plurality of side blocks arranged on the four sides of the multi-pin component. An inclined pressure rod is fixedly connected to the side wall of each side block, and each inclined pressure rod is slidably connected to the side wall of the insulating buckle. A top block is installed at the rod end of each inclined pressure rod. Pressing protrusions are arranged on both sides of the lower end of the pressing buckle, and the pressing protrusions abut against the end face of the top block.

[0009] Preferably, each pressurizing and fixing mechanism includes a plurality of cylinder sleeves fixedly installed on the lower cavity wall of the cavity. A pressurizing piston is slidably connected inside each cylinder sleeve. A pressurizing heat conduction rod is installed at the bottom of each pressurizing piston, and the bottoms of the plurality of pressurizing heat conduction rods are fixedly connected together to form a frame-shaped heat conduction plate. The frame-shaped heat conduction plate is arranged above the pressing buckle. A support spring is arranged between each pressurizing piston and the lower cavity wall of the cavity. An elastic sealing film is encapsulated on the top of each cylinder sleeve.

[0010] Preferably, each heat conduction and pressurizing mechanism includes a non-magnetic cylinder fixedly inserted into the top of the heat conduction cover. The bottom of the non-magnetic cylinder abuts against the lower cavity wall of the strip-shaped cavity on the same side. An expansion piston is slidably connected inside the non-magnetic cylinder, and the space above the expansion piston inside the non-magnetic cylinder is filled with perfluorohexane liquid. A return spring is fixedly arranged between the top of the expansion piston and the inner wall of the top of the non-magnetic cylinder. A plurality of liquid through grooves are formed at the bottom of the non-magnetic cylinder. A plurality of support pipes are fixedly inserted into the upper cavity walls of the two liquid through cavities, and each support pipe communicates with the corresponding strip-shaped cavity. A one-way valve is installed inside each support pipe. The strip-shaped cavities, liquid through cavities, and cavities are all filled with heat conduction liquid. Under the action of the one-way valve, the heat conduction liquid inside each strip-shaped cavity enters the cavity along one liquid through cavity and support pipe, and flows back into the strip-shaped cavity along the other liquid through cavity and support pipe.

[0011] Preferably, a pressure switch is installed on the wall of one of the liquid passage cavities, electromagnetic blocks are fixedly installed at the positions of the lower cavity walls of the strip cavities inside the magnetic isolation cylinder on the same side, permanent magnetic blocks are installed at the bottoms of the expansion pistons, the pressure switch is used to detect the pressure of the heat-conducting liquid, and the main circuit board controls the operation of the electromagnetic blocks according to the electrical signals fed back by the pressure switch.

[0012] Preferably, two symmetrically inclined positioning holes are formed in the end faces of the pressing buckles, and positioning pins matching the positioning holes are slidably inserted into the end faces of the top plates.

[0013] Compared with the existing technology, the advantages of a quick-disassembly circuit board for new energy vehicles are as follows: Through the mutual cooperation of the main circuit board, multi-pin components, insulating buckles, pin clamping grooves, top plates and pressing and fixing mechanisms, the multi-pin components on the main circuit board can be clamped through a snap-fastening structure, so that the multi-pin components can be quickly disassembled and assembled, and the maintenance and repair are convenient.

[0014] Through the provided bottom support unit, the main circuit board can be supported to avoid slight bending at the bottom of the main circuit board due to temperature rise, resulting in disconnection of the connection with the pins, and ensuring the stability of pin fixing.

[0015] Through the provided pressurizing and fixing mechanism and heat-conducting pressurizing mechanism, pressure can be applied to the top of the multi-pin components at high temperatures to ensure the connection stability between the pins and the main circuit board. And through the mutual cooperation of the pressure switch, electromagnetic block and permanent magnetic block, the multi-pin components can be assisted to dissipate heat quickly at higher temperatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a quick-disassembly circuit board for new energy vehicles provided by the present invention; Figure 2 is an exploded schematic diagram of the main circuit board, top plate and bottom plate of a quick-disassembly circuit board for new energy vehicles provided by the present invention; Figure 3 is a schematic connection structure diagram of the main circuit board, top plate and bottom plate of a quick-disassembly circuit board for new energy vehicles provided by the present invention; Figure 4 is a schematic structural diagram of an insulating buckle of a quick-disassembly circuit board for new energy vehicles provided by the present invention; Figure 5 is a schematic structural diagram of a pressing buckle of a quick-disassembly circuit board for new energy vehicles provided by the present invention; Figure 6 is a quick-disassembly circuit board for new energy vehicles provided by the present invention Figure 3Enlarged view of the structure of part A; Figure 7 It is a schematic bottom view of the frame-shaped heat conduction plate and the top plate of a quick-release circuit board for a new energy vehicle provided by the present invention; Figure 8 It is a schematic cross-sectional view of the bottom plate of a quick-release circuit board for a new energy vehicle provided by the present invention; Figure 9 It is a quick-release circuit board for a new energy vehicle provided by the present invention Figure 8 Enlarged view of the structure of part B.

[0017] In the figure: 1 circuit board main body, 2 multi-pin components, 3 insulating buckle plates, 4 pin clamping grooves, 5 top plate, 6 pressing and fixing mechanism, 61 pressing buckle plate, 62 threaded sleeve, 63 pressing column, 7 bottom support unit, 71 bottom plate, 72 strip cavity, 73 heat conduction cover, 74 cavity, 75 liquid passage cavity, 8 edge limiting component, 81 side stop block, 82 inclined pressure rod, 83 top block, 84 pressing protrusion, 9 pressurizing and fixing mechanism, 91 cylinder sleeve, 92 pressurizing piston, 93 pressurizing heat conduction rod, 94 frame-shaped heat conduction plate, 95 support spring, 96 elastic sealing film, 10 heat conduction and pressurizing mechanism, 101 non-magnetic cylinder barrel, 102 expansion piston, 103 perfluorohexane liquid, 104 return spring, 105 liquid passage groove, 106 support pipe, 107 one-way valve, 11 pressure switch, 12 electromagnetic block, 13 permanent magnet block, 14 positioning hole, 15 positioning pin. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0019] Such as Figures 1-9As shown in the figure, a quick-release circuit board for a new energy vehicle includes a circuit board main body 1 and a plurality of multi-pin components 2 mounted on the circuit board main body 1. It further includes: a plurality of insulating buckle plates 3, which are matched with the corresponding multi-pin components 2. A plurality of pin clamping grooves 4 are opened at the bottom of each insulating buckle plate 3, and the pins of the multi-pin components 2 are all clamped into the corresponding pin clamping grooves 4. Thermal conductive silicone can be applied between the inner wall of the top of the insulating buckle plate 3 and the top of the multi-pin component 2 to facilitate the external conduction and dissipation of the heat of the multi-pin component 2. A plurality of top plates 5 are all arranged above the circuit board main body 1, and a pressing and fixing mechanism 6 is installed on each top plate 5. The pressing and fixing mechanism 6 is used to apply pressure to the insulating buckle plate 3. Each pressing and fixing mechanism 6 includes a pressing buckle plate 61 arranged below the top plate 5. A threaded sleeve 62 is fixedly inserted into the end face of the top plate 5, and a pressing column 63 is threadedly connected to the threaded sleeve 62. The pressing column 63 applies pressure to the insulating buckle plate 3 through the pressing buckle plate 61. An edge limiting component 8 is jointly installed on the insulating buckle plate 3 and the pressing buckle plate 61.

[0020] Two symmetrically inclined positioning holes 14 are opened at the end face of each pressing buckle plate 61, and a positioning pin 15 that matches the positioning hole 14 is slidably inserted into the end face of each top plate 5, which can facilitate the precise positioning of the position of the multi-pin component 2.

[0021] A bottom support unit 7 is installed below the circuit board main body 1 and is used to support the bottom of the circuit board main body 1. The bottom support unit 7 includes a bottom plate 71 arranged below the circuit board main body 1. A plurality of strip-shaped cavities 72 corresponding to the positions of the top plates 5 are opened inside the bottom plate 71, and a heat conduction cover 73 communicated with the strip-shaped cavities 72 is fixedly installed on the end face of the bottom plate 71. The top of each heat conduction cover 73 is fixedly connected to the bottom of the circuit board main body 1. A cavity 74 is opened inside each top plate 5, and a pressing and fixing mechanism 9 corresponding to the position of the pressing buckle plate 61 is arranged inside each cavity 74. A heat conduction and pressing mechanism 10 is installed inside each heat conduction cover 73. Liquid passing cavities 75 are opened on both sides of the end face of the bottom plate 71, and each strip-shaped cavity 72 is communicated with the two liquid passing cavities 75. Each heat conduction and pressing mechanism 10 is communicated with the cavity 74 through the two liquid passing cavities 75. The support of the heat conduction cover 73 for the bottom of the circuit board main body 1 can prevent the circuit board main body 1 from bending and deforming downward.

[0022] Each edge limiting component 8 includes a plurality of side blocking blocks 81 arranged on the four sides of the multi-pin component 2. An inclined pressure rod 82 is fixedly connected to the side wall of each side blocking block 81, and each inclined pressure rod 82 is slidably connected to the side wall of the insulating buckle plate 3. A top block 83 is installed at the rod end of each inclined pressure rod 82. Pressure protrusions 84 are arranged on both sides of the lower end of the pressing buckle plate 61, and the pressure protrusions 84 are abutted against the end face of the top block 83, which can facilitate the clamping and fixing of the two side walls of the main body of the multi-pin component 2 and prevent the multi-pin component 2 from shifting and shaking in the horizontal direction.

[0023] Each pressurizing fixing mechanism 9 includes a plurality of cylinder sleeves 91 fixedly mounted on the lower cavity wall of the cavity 74, and a pressurizing piston 92 is slidably connected to the interior of each cylinder sleeve 91, a pressurizing heat-conducting rod 93 is mounted on the bottom of each pressurizing piston 92, and a frame-type heat-conducting plate 94 is fixedly connected to the bottom of the plurality of pressurizing heat-conducting rods 93, and the frame-type heat-conducting plate 94 is arranged above the pressure buckle plate 61, and a supporting spring 95 is arranged between each pressurizing piston 92 and the lower cavity wall of the cavity 74, and an elastic sealing film 96 is encapsulated on the top of each cylinder sleeve 91, and the elastic sealing film 96 can improve the sealing performance of the top of the cylinder sleeve 91 to prevent the heat-conducting liquid from escaping.

[0024] Each heat-conducting pressurizing mechanism 10 includes a magnetic-isolating cylinder 101 fixedly plugged into the top of the heat-conducting cover 73, and the bottom of the magnetic-isolating cylinder 101 abuts against the lower cavity wall of the strip cavity 72 on the same side, and the interior of the magnetic-isolating cylinder 101 is slidably connected with an expansion piston 102, and the space above the expansion piston 102 inside the magnetic-isolating cylinder 101 is filled with perfluorohexane liquid 103, and a return spring 104 is fixedly arranged between the top of the expansion piston 102 and the top inner wall of the magnetic-isolating cylinder 101, and a plurality of liquid-passing grooves 105 are provided at the bottom of the magnetic-isolating cylinder 101, and the upper cavity walls of the two liquid-passing cavities 75 are fixedly plugged with a plurality of support tubes 106, and each Each support tube 106 is connected to the corresponding strip cavity 72, and a one-way valve 107 is installed inside each support tube 106. The interior of each strip cavity 72, liquid cavity 75, and cavity 74 is filled with heat-conducting liquid. Under the action of the one-way valve 107, the heat-conducting liquid inside each strip cavity 72 enters the cavity 74 along the liquid cavity 75 and the support tube 106 on one side, and flows back to the strip cavity 72 along the liquid cavity 75 and the support tube 106 on the other side. The heat-conducting liquid can be heat-conducting oil. A hole for injecting and replacing the heat-conducting liquid is reserved at the top of the cavity 74. A sealing plugging structure needs to be provided at the hole to facilitate the subsequent replacement of the heat-conducting liquid.

[0025] A pressure switch 11 is installed on the cavity wall of one of the liquid-passing cavities 75, and an electromagnetic block 12 is fixedly installed on the lower cavity wall of each strip cavity 72 located inside the magnetic isolation cylinder 101 on the same side. A permanent magnet block 13 is installed at the bottom of each expansion piston 102. The pressure switch 11 is used to detect the pressure of the heat-conducting liquid. The circuit board body 1 controls the operation of the electromagnetic block 12 according to the electrical signal feedback from the pressure switch 11. Liquid-proof measures are provided at the permanent magnet block 13 and the electromagnetic block 12 to prevent them from direct contact with the heat-conducting liquid, such as installing a non-magnetic liquid-proof cover.

[0026] The operating principle of the present invention is described as follows: When installing the multi-pin component 2 on the circuit board main body 1, the multi-pin component 2 is pre-clamped into the corresponding insulating clamping plate 3, so that the pins of the multi-pin component 2 are clamped into the corresponding pin clamping grooves 4. Subsequently, the pressing clamping plate 61 is clamped on the top of the insulating clamping plate 3, and then placed under the corresponding top plate 5. By inserting the positioning pin 15 into the positioning hole 14, the multi-pin component 2 is accurately placed at the installation position on the circuit board main body 1. Subsequently, the corresponding pressing column 63 is rotated. The downward movement of the pressing column 63 will apply pressure to the pressing clamping plate 61, so that the multi-pin component 2 can be fixed on the circuit board main body 1 through the pressing clamping plate 61 and the insulating clamping plate 3. Thus, the installation and fixation of the multi-pin component 2 are completed; During the use of the circuit board main body 1, since the circuit board main body 1 needs to monitor parameters such as battery voltage, current, and temperature in real time, and ensure the safe operation of the battery through functions such as equalization control and overcharge and over-discharge protection, the components on the circuit board main body 1 will generate heat during operation. And because the multi-pin component 2 generally integrates more functional modules inside and needs to process complex signals, the heat generated by the multi-pin component 2 is generally higher. As the temperature rises, the heat is conducted to the perfluorohexane liquid 103 inside it through the heat conducting cover 73 and the magnetic isolation cylinder 101. When the temperature rises to about 56 °C, the perfluorohexane liquid 103 begins to convert from liquid to gas. Therefore, the pressure above the expansion piston 102 inside the magnetic isolation cylinder 101 begins to increase. At this time, the expansion piston 102 begins to move downward, so that the pressure of the heat conducting liquid inside the strip cavity 72 increases. Under the action of the pressure, part of the heat conducting liquid inside the strip cavity 72 transfers to the liquid passage cavity 75 on one side, and the heat conducting liquid inside the liquid passage cavity 75 enters the cavity 74 of the top plate 5 through the supporting tube 106 on the same side, so that the pressure of the heat conducting liquid inside the cavity 74 also increases. Under the action of the pressure, each elastic sealing film 96 begins to expand and bulge downward, so that each pressurizing piston 92 can be pushed to move downward. Each pressurizing piston 92 can make the frame-shaped heat conducting plate 94 move downward through the pressurizing heat conducting rod 93. The frame-shaped heat conducting plate 94 will contact the pressing clamping plate 61. Since the substrate of the circuit board main body 1 may be slightly bent under the action of thermal expansion when the temperature of the circuit board main body 1 rises, at this time, since the pressurizing heat conducting rod 93 applies a downward pressure to the pressing clamping plate 61 through the frame-shaped heat conducting plate 94, the pressure between the pins of each multi-pin component 2 and the circuit board main body 1 will also increase. Under the supporting action of the heat conducting cover 73 below the circuit board main body 1, the position of the circuit board main body 1 where the multi-pin component 2 is located is not prone to deformation, so as to ensure the connection stability between the pins of the multi-pin component 2 and the electrical contacts on the circuit board main body 1, and avoid the deformation of the circuit board main body 1 caused by temperature, affecting the stable connection with the multi-pin component 2; At the same time, when the temperature rises, the pressure of the heat-conducting liquid increases due to the downward movement of the expansion piston 102. At this time, the moving contact of the pressure switch 11 will be closed under the pressure of the heat-conducting liquid, so the pressure switch 11 will feedback an electrical signal to the control end of the circuit board body 1. At this time, the control end of the circuit board body 1 will control its own timing module to start timing. After the timing reaches 5 minutes, the control end of the circuit board body 1 controls the electromagnetic block 12 to energize for 5 seconds. When the electromagnetic block 12 is energized, under the effect of like-charge repulsion, the permanent magnet block 13 will drive the expansion piston 102 to move back a certain distance. At this time, due to the reduction in the pressure of the heat-conducting liquid, the excess heat-conducting liquid in the cavity 74 will flow back to each strip cavity through the support tube 106 and the liquid cavity 75 on the other side. 72, after 5 seconds, due to the disappearance of magnetic repulsion, under the pressure of the perfluorohexane liquid 103 being converted into gas, the expansion piston 102 moves down again, so that the heat-conducting liquid in the strip cavity 72 can be pushed to transfer to the cavity 74 again, and the timing module of the control end of the circuit board body 1 counts again. After 5 minutes, the electromagnetic block 12 works again, and the cycle repeats, so that the heat-conducting liquid can circulate in the strip cavity 72, the liquid cavity 75, the support tube 106, and the cavity 74. After the heat-conducting liquid near the multi-pin component 2 absorbs heat, it can quickly dissipate the heat through the circulation flow, thereby assisting in reducing the temperature at the multi-pin component 2, which is beneficial to the working stability of the circuit board body 1; When the multi-pin component 2 on the circuit board body 1 needs to be disassembled for maintenance, the top pressure column 63 is twisted to separate it from the pressing buckle plate 61, and then the pressing buckle plate 61, the insulating buckle plate 3 and the multi-pin component 2 are pulled out from the bottom of the top plate 5, which is convenient and simple to disassemble; Among them, the number of pins of the multi-pin component 2 is generally higher than 3 pairs, and the aforementioned buckling structure can be used to achieve quick disassembly and assembly. At the same time, since the thickness of each multi-pin component 2 is different, the bottom of the top plate 5 can be provided with corresponding protrusions according to the multi-pin components 2 of different thicknesses to ensure that the pressing column 63 and the frame-type heat conducting plate 94 can be smoothly pressed against the top of the pressing buckle plate 61. When designing the circuit board main body 1, the spacing and position of the multi-pin components 2 are reasonably distributed so that they are distributed in a row along the top plate 5 for easy disassembly and assembly.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick-release circuit board for new energy vehicles, comprising a circuit board main body (1) and a plurality of multi-pin components (2) mounted on the circuit board main body (1), characterized in that, Further included are: a plurality of insulating buckle plates (3), which are matched with corresponding multi-pin components (2). A plurality of pin clamping grooves (4) are formed at the bottom of each insulating buckle plate (3), and the pins of the multi-pin components (2) are all clamped into the corresponding pin clamping grooves (4); a plurality of top plates (5), which are all arranged above the circuit board main body (1). Each of the top plates (5) is provided with a pressing and fixing mechanism (6), and the pressing and fixing mechanism (6) is used to apply pressure to the insulating buckle plate (3); a bottom support unit (7), which is installed below the circuit board main body (1) and is used to support the bottom of the circuit board main body (1).

2. The quick-release circuit board for new energy vehicles according to claim 1, characterized in that, Each of the pressing and fixing mechanisms (6) includes a pressing buckle plate (61) arranged below the top plate (5). A threaded sleeve (62) is fixedly inserted into the end face of the top plate (5), and a pressing column (63) is threadedly connected to the threaded sleeve (62). The pressing column (63) applies pressure to the insulating buckle plate (3) through the pressing buckle plate (61), and an edge limiting component (8) is jointly installed on the insulating buckle plate (3) and the pressing buckle plate (61).

3. The quick-release circuit board for new energy vehicles according to claim 2, wherein, The bottom support unit (7) includes a bottom plate (71) arranged below the circuit board main body (1). A plurality of strip-shaped cavities (72) corresponding to the positions of the top plates (5) are formed inside the bottom plate (71), and a heat conduction cover (73) communicated with the strip-shaped cavities (72) is fixedly installed on the end face of the bottom plate (71). The top of each heat conduction cover (73) is fixedly connected to the bottom of the circuit board main body (1). Cavities (74) are formed inside each of the top plates (5), and a pressing and fixing mechanism (9) corresponding to the position of the pressing buckle plate (61) is arranged inside each cavity (74). A heat conduction and pressing mechanism (10) is installed inside each heat conduction cover (73). Liquid through cavities (75) are formed on both sides of the end face of the bottom plate (71), and each strip-shaped cavity (72) is communicated with the two liquid through cavities (75). Each heat conduction and pressing mechanism (10) is communicated with the cavity (74) through the two liquid through cavities (75).

4. The quick-release circuit board for new energy vehicles according to claim 2, wherein, Each of the edge limiting components (8) includes a plurality of side stoppers (81) arranged on four sides of the multi-pin component (2). An inclined pressure rod (82) is fixedly connected to the side wall of each side stopper (81), and each inclined pressure rod (82) is slidably connected to the side wall of the insulating buckle plate (3). A top block (83) is installed at the rod end of each inclined pressure rod (82). Pressing protrusions (84) are arranged on both sides of the lower end of the pressing buckle plate (61), and the pressing protrusions (84) are abutted against the end face of the top block (83).

5. The quick-release circuit board for a new energy vehicle according to claim 3, characterized in that, Each of the pressurizing fixing mechanisms (9) comprises a plurality of cylinder sleeves (91) fixedly mounted on the lower cavity wall of the cavity (74), and each cylinder sleeve (91) is slidably connected to a pressurizing piston (92), a pressurizing heat-conducting rod (93) is mounted on the bottom of each of the pressurizing pistons (92), and a frame-type heat-conducting plate (94) is fixedly connected to the bottoms of the plurality of pressurizing heat-conducting rods (93), and the frame-type heat-conducting plate (94) is arranged above the pressing buckle plate (61), a supporting spring (95) is arranged between each of the pressurizing pistons (92) and the lower cavity wall of the cavity (74), and an elastic sealing film (96) is encapsulated on the top of each of the cylinder sleeves (91).

6. The quick-release circuit board for a new energy vehicle according to claim 3, characterized in that, Each of the heat-conducting pressurizing mechanisms (10) comprises a magnetic isolation cylinder (101) fixedly plugged into the top of the heat-conducting cover (73), and the bottom of the magnetic isolation cylinder (101) abuts against the lower cavity wall of the strip cavity (72) on the same side, an expansion piston (102) is slidably connected inside the magnetic isolation cylinder (101), and the space inside the magnetic isolation cylinder (101) located above the expansion piston (102) is filled with perfluorohexane liquid (103), a return spring (104) is fixedly arranged between the top of the expansion piston (102) and the top inner wall of the magnetic isolation cylinder (101), and a plurality of liquid passage grooves (105) are provided at the bottom of the magnetic isolation cylinder (101). A plurality of support tubes (106) are fixedly inserted into the upper cavity walls of the two liquid-passing cavities (75), and each support tube (106) is connected to the corresponding strip-shaped cavity (72). A one-way valve (107) is installed inside each support tube (106). The interior of each strip-shaped cavity (72), the liquid-passing cavity (75), and the cavity (74) is filled with a heat-conducting liquid. Under the action of the one-way valve (107), the heat-conducting liquid inside each strip-shaped cavity (72) flows along the liquid-passing cavity (75) and the support tube (106) on one side into the cavity (74), and flows back into the strip-shaped cavity (72) along the liquid-passing cavity (75) and the support tube (106) on the other side.

7. The quick-release circuit board for new energy vehicles according to claim 6, characterized in that, A pressure switch (11) is installed on the cavity wall of one of the liquid-passing cavities (75); an electromagnetic block (12) is fixedly installed on the lower cavity wall of each of the strip-shaped cavities (72) at a position located inside the magnetic isolation cylinder (101) on the same side; a permanent magnet block (13) is installed on the bottom of each of the expansion pistons (102); the pressure switch (11) is used to detect the pressure of the heat-conducting liquid; and the circuit board body (1) controls the operation of the electromagnetic block (12) according to the electrical signal fed back by the pressure switch (11).

8. The quick-disassembly type circuit board for new energy vehicles according to claim 2, wherein, The end surface of each of the pressing buckle plates (61) is provided with two obliquely symmetrical positioning holes (14), and the end surface of each of the top plates (5) is slidably plugged with a positioning pin (15) matching the positioning holes (14).

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