A high-voltage distribution box with diversified adaptation

Abstract

The application discloses a high-voltage distribution box capable of diversified adaptation, and relates to the technical field of high-voltage distribution.The upper shell and the lower shell clamp and fix a main positive relay and a main negative relay; the top surface of the upper shell is provided with interval positive input conductive plates and positive output conductive plates; the top surface of the lower shell is provided with interval negative input conductive plates and negative output conductive plates; each conductive plate and the peripheral edge of the shell body are provided with a plurality of optional external fixed points; all the conductive plates are provided with vertical conductive plug-in ends; the conductive plug-in ends of the positive input conductive plates and the positive output conductive plates are connected to two pole connection ends of the main positive relay; and the conductive plug-in ends of the negative input conductive plates and the negative output conductive plates are connected to two pole connection ends of the main negative relay.The high-voltage distribution box can provide diversified adaptation connection positions, has a compact structure and has a self-heat dissipation function.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of high-voltage power distribution, in particular to a high-voltage power distribution box capable of diversified adaptation. BACKGROUND

[0002] In recent years, new energy vehicles have developed rapidly under the strong support of national policies, and the rapid development of new energy vehicles has also promoted the rapid iteration of battery pack systems, leading to repeated iteration and upgrading of high-voltage power distribution boxes by various automobile manufacturers. The high-voltage power distribution box is a high-voltage and large-current distribution unit of an electric vehicle. The high-voltage power distribution box adopts a centralized power distribution scheme, and the structure design is very compact. After iteration and upgrading, the high-voltage power distribution box has various sizes, shapes and connection point positions. In the actual design and production process, the high-voltage power distribution box is customized according to customer input requirements, which requires a large number of tooling equipment, resulting in an increase in development costs and a long development cycle.

[0003] Taking the high-voltage power distribution box in patent CN111890934A as an example, after the high-voltage power distribution box is applied to the battery pack systems of various automobile manufacturers, the remaining electrical elements of some automobile manufacturers can be conveniently connected to the positive input copper bar, the positive output copper bar, the negative output copper bar and the negative input copper bar, but the remaining electrical elements of other automobile manufacturers want to be connected to the positive input copper bar, the positive output copper bar, the negative output copper bar and the negative input copper bar, which requires the copper bar or the wire harness to be bent. The space for the remaining electrical elements of the battery pack system of the automobile manufacturer is compact and delicate, and it is obviously not practical to change the copper bar or wire harness scheme of the battery pack system. Therefore, the connection positions of the copper bars of the high-voltage power distribution box must be redesigned specifically, which prolongs the research and development cycle and increases the development cost.

[0004] Further, the safety problem of new energy vehicle battery pack fire is becoming more and more prominent, therefore, the temperature control requirement of the existing high-voltage power distribution box is more stringent, generally a cooling device needs to be separately arranged, but the separately arranged cooling device occupies a large space and has a high cost, and the wiring of the added cooling device and the high-voltage power distribution box is also troublesome.

[0005] Therefore, the technical personnel in the art urgently need to design a high-voltage power distribution box capable of diversified adaptive connection and solving the cooling problem. SUMMARY

[0006] In view of the defects in the prior art, the purpose of the application is to provide a high-voltage power distribution box capable of diversified adaptation, which can provide diversified adaptive connection positions, has a compact structure and has a self-cooling function.

[0007] The technical scheme adopted to achieve the above object is as follows: a diversified high-voltage distribution box, comprising an upper shell and a lower shell, the upper shell and the lower shell clamping and fixing a main positive relay and a main negative relay, the top surface of the upper shell being paved with spaced positive input conductive plates and positive output conductive plates, the top surface of the lower shell being paved with spaced negative input conductive plates and negative output conductive plates, and each conductive plate and the peripheral edge of the shell being provided with a plurality of optional external fixed points.

[0008] Each conductive plate is provided with a vertical conductive plug-in end, the conductive plug-in ends of the positive input conductive plates and the positive output conductive plates penetrating the upper shell and being connected to two pole connection ends of the main positive relay respectively, and the conductive plug-in ends of the negative input conductive plates and the negative output conductive plates being connected to two pole connection ends of the main negative relay.

[0009] On the basis of the above technical scheme, the upper shell is provided with two grooves capable of accommodating the main positive relay and the main negative relay, the lower shell is provided with two support bosses corresponding to the positions of the two grooves, and the support bosses are used to support the main positive relay and the main negative relay.

[0010] On the basis of the above technical scheme, the side walls of the upper shell located on both sides of the grooves are provided with buckle parts, the corresponding positions of the main positive relay or the main negative relay are provided with buckle connection parts, and the buckle parts and the buckle connection parts are detachably matched and connected.

[0011] On the basis of the above technical scheme, the top wall of the upper shell located at the top of the groove is provided with a plug piece clearance, each relay comprises two low-voltage control plugs facing upwards, and each low-voltage control plug penetrates through a plug piece clearance and is exposed from the top surface of the upper shell.

[0012] On the basis of the above technical scheme, the positive input conductive plate is provided with a waist round hole avoiding the low-voltage control plug of the main negative relay, and the positive input conductive plate and the positive output conductive plate are both provided with a half-waist round hole avoiding the low-voltage control plug of the main positive relay, the negative output conductive plate is provided with a waist round hole avoiding one support boss, and the negative input conductive plate and the negative output conductive plate are both provided with a half-waist round hole avoiding the other support boss.

[0013] On the basis of the above technical scheme, the top wall of the upper shell located at the top of the groove is provided with two conductive plate mounting notches, the two conductive plate mounting notches being located directly above the two pole connection ends of the main positive relay, and the conductive plug-in ends of the positive input conductive plate and the positive output conductive plate penetrating through the two conductive plate mounting notches respectively.

[0014] On the basis of the above technical scheme, the depth of the groove exceeds half of the thickness of the main positive relay and the main negative relay; the lower shell is provided with four support columns, the height of the support columns exceeds the height of the support bosses; and the upper shell is fixed to the four support columns by the fixing bolts penetrating through the upper shell.

[0015] On the basis of the above technical scheme, the upper shell comprises four sunken points, each of which is embedded with a steel sleeve, and the four support columns are embedded with fixing nuts, and the fixing bolts are fixed to the fixing nuts through the steel sleeves.

[0016] On the basis of the above technical scheme, the high-voltage distribution box is in the shape of a cuboid as a whole, the upper shell, the positive input conductive plate and the positive output conductive plate form an upper assembly, and a plurality of optional external fixing points are arranged around the periphery of the upper assembly; the lower shell, the negative input conductive plate and the negative output conductive plate form a lower assembly, and a plurality of optional external fixing points are arranged around the periphery of the lower assembly.

[0017] On the basis of the above technical scheme, each external fixing point comprises an external shell fixing point and an external conductive plate fixing point, the external shell fixing point is arranged on the edge of the upper shell or the lower shell, the external conductive plate fixing point is arranged on the edge of the conductive plate, and a plurality of external shell fixing points are aligned with a plurality of external conductive plate fixing points.

[0018] The technical scheme provided in the application has the following beneficial effects:

[0019] The high-voltage distribution box of the application comprises an upper shell and a lower shell, and two relays (a main positive relay and a main negative relay) are located between the upper shell and the lower shell. The entire top surface of the upper shell is covered with horizontally arranged positive input conductive plates and positive output conductive plates, and the entire top surface of the lower shell is covered with horizontally arranged negative input conductive plates and negative output conductive plates.

[0020] The high-voltage distribution box of the application uses large thin conductive plates for the positive input conductive plates, the positive output conductive plates, the negative input conductive plates and the negative output conductive plates, which effectively increases the heat dissipation area, replaces the traditional strip-shaped copper bars of the high-voltage distribution box, has a built-in heat dissipation function, is highly efficient in heat dissipation, can transfer the heat generated during the operation of the relays, and does not need to be additionally provided with a cooling device, thereby saving the cost and installation space of the high-voltage distribution box. At the same time, the related conductive plates of the main positive relay and the main negative relay are separated upward and downward, and the problem of circuit series connection does not occur, thereby improving the overall safety performance.

[0021] The four peripheral edges of the conductive plate and the shell are provided with a plurality of optional external fixing points. The high-voltage distribution box of the application can provide diversified adaptive connection positions for the copper bars and wire harnesses externally connected by different automobile manufacturers. No matter the copper bars and wire harnesses externally connected are in front, back, left or right of the high-voltage distribution box of the application, appropriate external fixing points can be selectively opened, so that the remaining electrical elements of the battery pack system can be connected to each conductive plate through the shortest path, and then connected to the main positive relay and the main negative relay. The high-voltage distribution box of the application can be diversified and adapted to all automobile manufacturers, and can meet the shortest path connection requirements of all automobile manufacturers. Compared with the traditional high-voltage distribution box which needs to be iteratively changed when applied to the battery pack system of another automobile manufacturer after adapting to the battery pack system of one automobile manufacturer, the high-voltage distribution box of the application saves the time cost and labor cost of iterative update, and shortens the development cycle of the battery pack system.

[0022] Meanwhile, the high-voltage distribution box of the application is compactly designed, and the main positive relay and the main negative relay are cleverly arranged in a smaller space. The upper shell, the positive input conductive plate and the positive output conductive plate form an upper assembly, the lower shell, the negative input conductive plate and the negative output conductive plate form a lower assembly, and the main positive relay and the main negative relay are clamped between the upper assembly and the lower assembly. While realizing high-voltage opening and closing capability, the structure volume is greatly reduced, which is convenient for application in the battery pack system. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Fig. 1 The structural schematic diagram of the high-voltage distribution box provided by the embodiment of the application is shown in the figure.

[0025] Fig. 2 The exploded view of the high-voltage distribution box provided by the embodiment of the application is shown in the figure.

[0026] Fig. 3 The structural schematic diagram of the upper shell provided by the embodiment of the application is shown in the figure.

[0027] Fig. 4 The structural schematic diagram of the lower shell provided by the embodiment of the application is shown in the figure.

[0028] Fig. 1 is an upper shell; 11 is a groove; 12 is a buckle part; 13 is a tab letout; 14 is a conductive plate installation gap; 15 is a steel sleeve; 16 is an external shell fixing point; 21 is a main positive relay; 22 is a main negative relay; 23 is a low-voltage control tab; 3 is a lower shell; 31 is a support boss; 32 is a support column; 321 is a fixing nut; 4 is a positive input conductive plate; 5 is a positive output conductive plate; 6 is a negative input conductive plate; 7 is a negative output conductive plate; 8 is a fixing bolt; 9 is an external conductive plate fixing point; 10 is a conductive plug-in end. DETAILED DESCRIPTION

[0029] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and not to limit the present application. In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as they do not conflict with each other.

[0030] As shown in Figs. 1 to 4 The present application discloses an embodiment of a diversified and adaptable high-voltage distribution box, which comprises: a high-voltage distribution box comprising an upper shell 1 and a lower shell 3, the upper shell 1 and the lower shell 3 clamping and fixing a main positive relay 21 and a main negative relay 22, both of which are located between the upper shell 1 and the lower shell 3.

[0031] The top surface of the upper shell 1 is horizontally provided with a positive input conductive plate 4 and a positive output conductive plate 5, and the positive input conductive plate 4 and the positive output conductive plate 5 are arranged in a spaced-apart and non-communicating manner, and at the same time, the positive input conductive plate 4 and the positive output conductive plate 5 are added together, except for the necessary gap, to cover the top surface of the upper shell 1.

[0032] The top surface of the lower shell 3 is horizontally provided with a negative input conductive plate 6 and a negative output conductive plate 7, and the negative input conductive plate 6 and the negative output conductive plate 7 are arranged in a spaced-apart and non-communicating manner, and at the same time, the negative input conductive plate 6 and the negative output conductive plate 7 are added together, except for the necessary gap, to cover the top surface of the upper shell 1.

[0033] The high-voltage distribution box of the present application uses large thin conductive plates to connect the two pole connection ends of the main positive relay 21 and the two pole connection ends of the main negative relay 22, replacing the traditional strip copper bars of the high-voltage distribution box, and has a self-cooling function, which is efficient and does not need to be additionally provided with a cooling device, thereby saving the cost and installation space of the high-voltage distribution box. At the same time, the related conductive plates of the main positive relay 21 and the main negative relay 22 are separated upward and downward, and there is no problem of circuit series connection, thereby improving the overall safety performance. Preferably, the large thin conductive plate can be a large thin copper plate, and can also be a large thin aluminum plate, etc.

[0034] A plurality of optional external fixing points are arranged on the periphery (front, rear, left and right directions) of each conductive plate and the shell. Specifically, the upper shell 1, the positive input conductive plate 4 and the positive output conductive plate 5 form an upper assembly, and a plurality of optional external fixing points are arranged on the periphery of the upper assembly. The lower shell 3, the negative input conductive plate 6 and the negative output conductive plate 7 form a lower assembly, and a plurality of optional external fixing points are arranged on the periphery of the lower assembly.

[0035] The high-voltage distribution box of the present application has a plurality of optional external fixing points arranged on the periphery of each conductive plate and the shell. In actual use, for different automobile manufacturers' external copper bars and wire harnesses, the external fixing points can be selectively opened to connect to the positive input conductive plate 4, the positive output conductive plate 5, the negative input conductive plate 6 and the negative output conductive plate 7 through the shortest path, and then to the main positive relay 21 and the main negative relay 22. The high-voltage distribution box of the present application can be diversified to adapt to all automobile manufacturers and meet the shortest path connection requirements of all automobile manufacturers. Compared with the traditional high-voltage distribution box which needs to be iteratively changed when applied to another automobile manufacturer's battery pack system after adapting to one automobile manufacturer's battery pack system, the high-voltage distribution box of the present application saves the time cost and labor cost of iterative update, and shortens the development cycle of the battery pack system.

[0036] Specifically, the positive input conductive plate 4, the positive output conductive plate 5, the negative input conductive plate 6 and the negative output conductive plate 7 are each provided with a vertical conductive plug-in end 10. The conductive plug-in end 10 of the positive input conductive plate 4 and the conductive plug-in end 10 of the positive output conductive plate 5 penetrate the upper shell 1 from top to bottom and are respectively connected to the two pole connection ends of the main positive relay 21. Specifically, the conductive plug-in end 10 of the positive input conductive plate 4 is connected to one of the pole connection ends of the main positive relay 21, and the conductive plug-in end 10 of the positive output conductive plate 5 is connected to the other pole connection end of the main positive relay 21. The conductive plug-in end 10 of the negative input conductive plate 6 and the conductive plug-in end 10 of the negative output conductive plate 7 are respectively connected to the two pole connection ends of the main negative relay 22. Specifically, the conductive plug-in end 10 of the negative input conductive plate 6 is connected to one of the pole connection ends of the main negative relay 22, and the conductive plug-in end 10 of the negative input conductive plate 6 is connected to the other pole connection end of the main negative relay 22.

[0037] The high-voltage distribution box of the present application is compactly designed, and the main positive relay and the main negative relay are cleverly arranged in a small space. The upper shell 1, the positive input conductive plate 4 and the positive output conductive plate 5 form an upper assembly, and the lower shell 3, the negative input conductive plate 6 and the negative output conductive plate 7 form a lower assembly. The main positive relay and the main negative relay are clamped between the upper assembly and the lower assembly, which not only realizes the high-voltage opening and closing capability, but also greatly reduces the structural volume, facilitating the application in the battery pack system.

[0038] Specifically, the two pole connection ends of the main positive relay 21 and the two pole connection ends of the main negative relay 22 are located opposite to the side faces of the two housings (i.e. the upper housing 1 and the lower housing 3), and the two low-voltage control tabs 23 of the main positive relay 21 and the two low-voltage control tabs 23 of the main negative relay 22 are arranged upward.

[0039] In an embodiment, the upper housing 1 is provided with two recesses 11 downward, which can accommodate the main positive relay 21 and the main negative relay 22 respectively. The top face of the lower housing 3 is provided with two support bosses 31 upward, which are located corresponding to the positions of the two recesses 11. Specifically, the two support bosses 31 are located directly below the two recesses 11. The support bosses 31 are used to support the main positive relay 21 or the main negative relay 22.

[0040] Specifically, the main positive relay 21 and the main negative relay 22 have the same shape. The two recesses 11 also have the same size and shape. The two support bosses 31 are used to increase the height of the main positive relay 21 and the main negative relay 22, so that the distance between the bottom face of the upper housing 1 and the negative input conductive plate 6 and the negative output conductive plate 7 is increased, leaving a space for external connection.

[0041] In an embodiment, the side walls of the upper housing 1 located on both sides of the recesses 11 are provided with buckle parts 12, and the left and right sides of the main positive relay 21 or the main negative relay 22 are provided with corresponding buckling parts. The buckle parts 12 and the buckling parts are detachably matched and connected.

[0042] In an embodiment, the top wall of the upper housing 1 located at the top of the recesses 11 is provided with tab accommodation openings 13, and the top wall of one recess 11 is provided with two tab accommodation openings 13. The top wall of the upper housing 1 is provided with a total of four tab accommodation openings 13. Each relay includes two upward low-voltage control tabs 23. The relay refers to the main positive relay 21 or the main negative relay 22. Each low-voltage control tab 23 passes through one tab accommodation opening 13 and is exposed from the top face of the upper housing 1.

[0043] Specifically, the low-voltage control tabs are connected with other electrical connections of the battery pack system, which will not be described herein.

[0044] Further, the positive input conductive plate 4 is provided with a waist round hole to avoid the low-voltage control tab 23 of the main negative relay 22, and the adjacent part of the positive input conductive plate 4 and the positive output conductive plate 5 is provided with a half waist round hole to avoid the low-voltage control tab 23 of the main positive relay 21. The half waist round hole of the positive input conductive plate 4 and the half waist round hole of the positive output conductive plate 5 are arranged opposite to each other.

[0045] The negative output conductive plate 7 is provided with a waist round hole avoiding one support boss 31, and the negative input conductive plate 6 and the negative output conductive plate 7 are provided with half waist round holes avoiding another support boss 31. The half waist round hole of the negative input conductive plate 6 and the half waist round hole of the negative output conductive plate 7 are oppositely arranged, leaving a space for the support boss 31.

[0046] Preferably, the interval distance between the positive input conductive plate 4 and the positive output conductive plate 5 is a safety distance, which can effectively avoid the communication between the two. Further, the interval between the positive input conductive plate 4 and the positive output conductive plate 5 can be coated with insulating glue. The interval distance between the negative input conductive plate 6 and the negative output conductive plate 7 is also a safety distance.

[0047] In one embodiment, the top wall of the upper shell 1 located at the top of the groove 11 is provided with two conductive plate mounting notches 14, which are located directly above the two pole connection ends of the main positive relay 21. The two conductive plate mounting notches 14 are respectively for the conductive plug-in end 10 of the positive input conductive plate 4 and the conductive plug-in end 10 of the positive output conductive plate 5.

[0048] Preferably, the positive input conductive plate 4, the positive output conductive plate 5, the negative input conductive plate 6 and the negative output conductive plate 7 can be processed by punching and bending of a whole conductive plate, which is simple and convenient.

[0049] Preferably, the depth of the groove 11 exceeds half of the thickness of the main positive relay 21 and the main negative relay 22. The lower shell 3 is provided with four support columns 32, and the height of the support columns 32 exceeds the height of the support boss 31. The upper shell 1 is fixed to the four support columns 32 by the fixing bolts 8 penetrating through itself. The four support columns 32 stably support and install the upper shell 1 on the lower shell 3.

[0050] Further, the upper shell 1 includes four sunken points, each of which is embedded with a steel sleeve 15, and the four support columns 32 are embedded with fixing nuts 321. The steel sleeve 15 and the fixing nut 321 are connected and fixed by the fixing bolt 8.

[0051] In one embodiment, the high-voltage distribution box is in the shape of a cuboid as a whole, the upper shell 1, the positive input conductive plate 4 and the positive output conductive plate 5 form an upper assembly, and the four peripheral edges of the upper assembly are provided with a plurality of optional external fixing points. The lower shell 3, the negative input conductive plate 6 and the negative output conductive plate 7 form a lower assembly, and the four peripheral edges of the lower assembly are provided with a plurality of optional external fixing points.

[0052] Further, the external fixed point positions include external shell fixed point positions 16 and external conductive plate fixed point positions 9. The external shell fixed point positions 16 are arranged on the edge of the upper shell 1 or the lower shell 3, and the external conductive plate fixed point positions 9 are arranged on the edge of the conductive plate (referring to the positive input conductive plate, the positive output conductive plate, the negative input conductive plate, and the negative output conductive plate). The external shell fixed point positions 16 are aligned with the external conductive plate fixed point positions 9.

[0053] It should be noted that the external shell fixed point positions 16 on the edge of the upper shell 1 or the lower shell 3 are all implemented by punching holes, and the external conductive plate fixed point positions 9 of the conductive plate can be punched according to the actual installation position.

[0054] In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0055] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0056] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. A high-voltage distribution box with versatility adaptability, characterized in that: It includes an upper shell (1) and a lower shell (3), which clamp and fix the main positive relay (21) and the main negative relay (22); the top surface of the upper shell (1) is covered with positive input conductive plates (4) and positive output conductive plates (5) with intervals, and the top surface of the lower shell (3) is covered with negative input conductive plates (6) and negative output conductive plates (7) with intervals; and several optional external fixing points are provided through each conductive plate and the four perimeter of the shell. All conductive plates are provided with vertical conductive plug-in terminals (10). The conductive plug-in terminals (10) of the positive input conductive plate (4) and the positive output conductive plate (5) penetrate the upper shell (1) and are respectively connected to the two pole connection terminals of the main positive relay (21); the conductive plug-in terminals (10) of the negative input conductive plate (6) and the negative output conductive plate (7) are respectively connected to the two pole connection terminals of the main negative relay (22). The upper shell (1) is provided with two grooves (11) facing downwards, which can accommodate the main positive relay (21) and the main negative relay (22). The upper shell (1) has a insert clearance opening (13) on the top wall of the groove (11). Each relay includes two upward-facing low-voltage control inserts (23). Each low-voltage control insert (23) passes through an insert clearance opening (13) and protrudes from the top surface of the upper shell (1). The positive input conductive plate (4) has an oblong hole that avoids the low-voltage control plug (23) of the main negative relay (22), and the positive input conductive plate (4) and the positive output conductive plate (5) each have a semi-oblong hole that avoids the low-voltage control plug (23) of the main positive relay (21) at adjacent locations; the negative output conductive plate (7) has an oblong hole that avoids one support boss (31), and the negative input conductive plate (6) and the negative output conductive plate (7) each have a semi-oblong hole that avoids another support boss (31).

2. The high-voltage distribution box with versatility adaptability as described in claim 1, characterized in that: The lower shell (3) is provided with two support bosses (31) facing upwards corresponding to the positions of the two grooves (11); the support bosses (31) are used to support the main positive relay (21) and the main negative relay (22).

3. The high-voltage distribution box with diversified adaptability as described in claim 1, characterized in that: The upper shell (1) has a snap-fit ​​part (12) on the side wall on both sides of the groove (11), and the main positive relay (21) or the main negative relay (22) has a fastening part at the corresponding position. The snap-fit ​​part (12) and the fastening part are detachably matched and connected.

4. The high-voltage distribution box with versatility adaptability as described in claim 1, characterized in that: The upper shell (1) has two conductive plate mounting notches (14) on the top wall of the groove (11). The two conductive plate mounting notches (14) are located directly above the two pole connection terminals of the main positive relay (21). The two conductive plate mounting notches (14) allow the conductive plug-in terminal (10) of the positive input conductive plate (4) and the conductive plug-in terminal (10) of the positive output conductive plate (5) to pass through, respectively.

5. A high-voltage distribution box with versatility adaptability as described in claim 1, characterized in that: The depth of the groove (11) exceeds half the thickness of the main positive relay (21) and the main negative relay (22); the lower shell (3) is provided with four support columns (32), and the height of the support columns (32) exceeds the height of the support boss (31); the upper shell (1) is fixed to the four support columns (32) one by one by the fixing bolts (8) that pass through it.

6. A high-voltage distribution box with versatility adaptability as described in claim 5, characterized in that: The upper shell (1) includes four sink points, each of which is embedded with a steel sleeve (15). The four support columns (32) are embedded with fixing nuts (321), and the fixing bolts (8) pass through the steel sleeves (15) and are fixed to the fixing nuts (321).

7. A high-voltage distribution box with versatility adaptability as described in any one of claims 1-6, characterized in that: The high-voltage distribution box is rectangular in shape. The upper shell (1), positive input conductive plate (4) and positive output conductive plate (5) form an upper assembly. Several optional external fixing points are provided on the four periphery of the upper assembly. The lower shell (3), negative input conductive plate (6) and negative output conductive plate (7) form a lower assembly. Several optional external fixing points are provided on the four periphery of the lower assembly.

8. A high-voltage distribution box with versatility adaptability as described in claim 7, characterized in that: Each external fixing point includes an external housing fixing point (16) and an external conductive plate fixing point (9). The external housing fixing point (16) is located on the edge of the upper shell (1) or the lower shell (3), and the external conductive plate fixing point (9) is located on the edge of the conductive plate. A plurality of external housing fixing points (16) are aligned one by one with a plurality of external conductive plate fixing points (9).

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