High-voltage distribution box capable of simplifying conductive terminal connection process
By using interference fit connection and injection molding as a single unit, the connection process between the busbar and electrical components is simplified, solving the problems of high connection cost and high complexity in the existing technology, and achieving cost savings and process simplification.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU SOARWHALE GREEN TECH
- Filing Date
- 2025-02-25
- Publication Date
- 2026-05-19
AI Technical Summary
The connection process between the busbar and electrical components in the existing technology is costly and complex, especially the bolt connection and laser welding, which involve high material and equipment costs and complex processes.
An interference fit connection is used to directly connect the connection terminals of the electrical control device to the connection holes of the conductive busbar. The cavity is formed by combining the substrate and the side plate, and then integrally molded by injection molding, simplifying the connection process.
It saves on the material and equipment costs of bolts and laser equipment, simplifies the process complexity, and reduces the time cost of the process.
Smart Images
Figure CN224264469U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of high-voltage power distribution technology, specifically relating to a high-voltage power distribution box that simplifies the connection process of conductive terminals. Background Technology
[0002] In the automotive industry, BDU usually refers to "Battery Distribution Unit". The battery distribution unit is a crucial component in electric and hybrid vehicles, responsible for monitoring and managing the battery's condition to ensure its safe and efficient operation.
[0003] BDU contains electrical components, which are often connected by conductive busbars such as copper or aluminum busbars. Currently, the conductive busbars are often connected to the electrical components with bolts and then fixed with AB glue. However, bolts require material costs, and bolt connection requires processes such as bolt hole alignment and tightening testing, which are relatively complex and time-consuming. Alternatively, the conductive busbars can be connected to the electrical components by high-power laser welding and then fixed with AB glue. However, the welding process is more complex and requires higher precision, resulting in higher costs for welding equipment. Utility Model Content
[0004] Purpose of the utility model: This application develops a high-voltage distribution box that simplifies the connection process of conductive terminals, aiming to solve the technical problems of high cost and complex process of connecting conductive busbars and electrical components in the prior art.
[0005] Technical solution: This application provides a high-voltage distribution box that simplifies the conductive terminal connection process, comprising:
[0006] A substrate having an intersecting first direction, a second direction, and a third direction, the substrate extending along a plane formed by the first direction and the second direction; the substrate having a first opening along the third direction;
[0007] A side plate extends along the third direction and intersects with the substrate. The substrate and the multiple side plates enclose a cavity, which communicates with the first opening.
[0008] A conductive busbar is connected to the substrate and is at least partially disposed in the first opening; the conductive busbar has a connection hole.
[0009] An electrical control device is connected to the side plate and the base plate and disposed in the cavity. The electrical control device includes a connection terminal, which is at least partially disposed in the connection hole and is interference-fitted with the connection hole.
[0010] In some embodiments, the distribution box further includes a conductive layer disposed between the contact surfaces of the connection terminal and the connection hole.
[0011] In some embodiments, the conductive layer comprises conductive paper and / or a conductive adhesive layer.
[0012] In some embodiments, the power distribution box further includes a limiting strip that extends along the third direction, is connected to the side plate, and is disposed in the chamber, the limiting strip being used to abut against and limit the electrical control device.
[0013] In some embodiments, multiple limiting strips are provided on the same side plate, and the multiple limiting strips are spaced apart in a direction perpendicular to the third direction, with two adjacent limiting strips and the side plate forming a groove.
[0014] The distribution box also includes a potting compound layer. In a direction perpendicular to the surface of the side plate, at least a portion of the side plate, the potting compound layer, and the electrical control device are arranged together, and the potting compound layer pots and connects the side plate and the electrical control device. At least a portion of the potting compound layer is disposed in the groove.
[0015] In some embodiments, the power distribution box further includes a first limiting platform, which is connected to the substrate and is disposed at the edge of the first opening, covering a portion of the first opening;
[0016] Along the third direction, the first limiting platform is disposed on the side of the first opening near the side plate.
[0017] In some embodiments, the electrical control device further includes a second limiting stage, which is connected to the connecting terminal and is disposed at the end of the connecting terminal away from the conductive busbar along the third direction;
[0018] Along the third direction, the orthographic projection of the second limiting stage at least partially overlaps with the orthographic projection of the conductive busbar, and is used to abut against the conductive busbar to define the position of the electrical control device.
[0019] In some embodiments, the connecting terminal is a cylindrical terminal, the connecting hole is a circular hole, and the basic dimensions of the connecting terminal and the connecting hole are the same.
[0020] The second limiting platform is cylindrical, and its axis coincides with that of the connecting terminal. The diameter of the second limiting platform is larger than that of the connecting terminal.
[0021] In some embodiments, the maximum tolerance of the interference fit is a mm, satisfying: 0.02≤a≤0.08.
[0022] In some embodiments, a = 0.05 is satisfied.
[0023] Beneficial Effects: Compared with the prior art, the high-voltage distribution box provided in this application provides a simplified conductive terminal connection process, including a base plate, side plates, conductive busbars, and electrical control devices. The base plate and multiple side plates are connected and enclose a cavity. The electrical control device is connected to the base plate and side plates and disposed in the cavity. The base plate has a first opening that communicates with the cavity. The conductive busbar is at least partially disposed in the first opening and has connection holes. The electrical control device includes connection terminals, which are at least partially disposed in the connection holes and are interference-fitted with the connection holes to achieve the connection between the electrical control device and the conductive busbar. This application directly connects the connection terminals of the electrical control device and the connection holes of the conductive busbar through an interference fit, achieving the electrical connection between the electrical control device and the conductive busbar. Compared with bolt connections and laser welding, this saves the material and equipment costs of bolts and laser equipment. At the same time, compared with bolt connections, there is no need for a tightening test process, simplifying the process complexity and reducing the process time cost. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 A perspective view of a high-voltage distribution box with a simplified conductive terminal connection process provided for an embodiment of this application (exemplarily showing an electrical control device);
[0026] Figure 2 A perspective view of the electrical control device in a high-voltage distribution box with a simplified conductive terminal connection process provided in the embodiments of this application;
[0027] Figure 3 A cross-sectional view of the connection structure of the substrate, first limiting platform, second limiting platform and conductive busbar in a high-voltage distribution box with a simplified conductive terminal connection process provided in an embodiment of this application;
[0028] Figure 4 A front view of the base plate and side plate structure in a high-voltage distribution box with a simplified conductive terminal connection process provided in an embodiment of this application;
[0029] Reference numerals: 10, substrate; 11, first opening; 20, side plate; 21, chamber; 22, second opening; 30, conductive bar; 31, connecting hole; 40, electrical control device; 41, connecting terminal; 50, limiting strip; 51, groove; 60, first limiting platform; 70, second limiting platform; X, first direction; Y, second direction; Z, third direction. Detailed Implementation
[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0031] In the automotive industry, BDU usually refers to "Battery Distribution Unit". The battery distribution unit is a crucial component in electric and hybrid vehicles, responsible for monitoring and managing the battery's condition to ensure its safe and efficient operation.
[0032] BDU contains electrical components, which are often connected by conductive busbars such as copper or aluminum busbars. Currently, the conductive busbars are often connected to the electrical components with bolts and then fixed with AB glue. However, bolts require material costs, and bolt connection requires processes such as bolt hole alignment and tightening testing, which are relatively complex and time-consuming. Alternatively, the conductive busbars can be connected to the electrical components by high-power laser welding and then fixed with AB glue. However, the welding process is more complex and requires higher precision, resulting in higher costs for welding equipment.
[0033] In view of this, embodiments of this application provide a high-voltage distribution box that simplifies the conductive terminal connection process, including a base plate 10, side plates 20, conductive busbars 30, and an electrical control device 40. The base plate 10 and multiple side plates 20 are connected and enclose a cavity 21. The electrical control device 40 is connected to the base plate 10 and the side plates 20 and is disposed in the cavity 21. The base plate 10 has a first opening 11 that communicates with the cavity 21. The conductive busbars 30 are at least partially disposed in the first opening 11 and have connection holes 31. The electrical control device 40 includes connection terminals 41 that are at least partially disposed in the connection holes 31 and are press-fitted with the connection holes 31 to achieve the connection between the electrical control device 40 and the conductive busbars 30. This application connects the connection terminal 41 of the electrical control device 40 and the connection hole 31 of the conductive bus 30 directly through an interference fit, thereby realizing the electrical connection between the electrical control device 40 and the conductive bus 30. Compared with bolt connection and laser welding, it saves the material and equipment costs of bolts and laser equipment. At the same time, compared with bolt connection, there is no need to perform a tightening test, which simplifies the process complexity and reduces the process time cost.
[0034] In some embodiments, in the high-voltage distribution box with simplified conductive terminal connection process provided in this application, the substrate 10 and the side plate 20 are plastic parts and are integrally molded using injection molding; at the same time, during the injection molding process, the conductive busbar 30 is pre-set at a designated position and integrally molded with the conductive busbar 30 when the substrate 10 and the side plate 20 are injection molded.
[0035] In some embodiments, please refer to Figure 1 and Figure 3 , Figure 1 A perspective view of a high-voltage distribution box with a simplified conductive terminal connection process provided for an embodiment of this application (exemplarily showing an electrical control device 40). Figure 3 This is a cross-sectional view of the connection structure of the substrate 10, the first limiting platform 60, the second limiting platform 70, and the conductive busbar 30 in a high-voltage distribution box according to an embodiment of this application, which simplifies the conductive terminal connection process. In this application, the substrate 10 has a first direction X, a second direction Y, and a third direction Z that intersect and are arranged. The substrate 10 extends along the plane formed by the first direction X and the second direction Y. Specifically, the substrate 10 in this application is a rectangular plate, and multiple sets of connecting platforms are protruding outward from the edge of the rectangular plate for connecting external devices. In this application, the length direction of the rectangular plate is the first direction X, the width direction is the second direction Y, and the thickness direction is the third direction Z. It can be understood that the first direction X, the second direction Y, and the third direction Z are orthogonally arranged.
[0036] In some embodiments, please refer to Figure 1 and Figure 4 , Figure 1A perspective view of a high-voltage distribution box with a simplified conductive terminal connection process provided for an embodiment of this application (exemplarily showing an electrical control device 40). Figure 4 This is a front view of the structure of the substrate 10 and side plate 20 in the high-voltage distribution box with simplified conductive terminal connection process provided in the embodiment of this application. The high-voltage distribution box with simplified conductive terminal connection process of this application also includes side plate 20. The side plate 20 extends along the third direction Z and intersects with the substrate 10. Multiple side plates 20 and one substrate 10 enclose to form a cavity 21, which is used to accommodate the electrical control device 40. Specifically, in this application, four side plates 20 are provided. The four side plates 20 are respectively perpendicularly connected to the substrate 10, and the four side plates 20 are sequentially perpendicularly connected, so that the four side plates 20 and the substrate 10 enclose to form a rectangular cavity 21 to accommodate the electrical control device 40.
[0037] In some embodiments, please refer to Figure 1 , Figure 3 and Figure 4 , Figure 1 A perspective view of a high-voltage distribution box with a simplified conductive terminal connection process provided for an embodiment of this application (exemplarily showing an electrical control device 40). Figure 3 A cross-sectional view of the connection structure of the substrate 10, the first limiting stage 60, the second limiting stage 70, and the conductive busbar 30 in a high-voltage distribution box, provided for a simplified conductive terminal connection process in an embodiment of this application. Figure 4 This is a front view of the structure of the substrate 10 and side plate 20 in the high-voltage distribution box with simplified conductive terminal connection process provided in this application embodiment. The substrate 10 in the high-voltage distribution box with simplified conductive terminal connection process provided in this application has a first opening 11. The first opening 11 extends in the third direction Z and penetrates the substrate 10. The first opening 11 communicates with the chamber 21, and at least a portion of the conductive busbar 30 is accommodated in the first opening 11 so that the conductive busbar 30 and the electrical control device 40 in the chamber 21 can be electrically connected. It can be understood that since the substrate 10 and side plate 20 are plastic parts, and the conductive busbar 30 is a conductive metal part (copper or aluminum), the first opening 11 is formed along at least a portion of the outer contour of the conductive busbar 30 during the injection molding of the substrate 10, side plate 20 and conductive busbar 30.
[0038] In some embodiments, please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 A perspective view of a high-voltage distribution box with a simplified conductive terminal connection process provided for an embodiment of this application (exemplarily showing an electrical control device 40). Figure 2 A perspective view of the electrical control device 40 in a high-voltage distribution box, provided for a simplified conductive terminal connection process according to an embodiment of this application. Figure 3This is a cross-sectional view of the connection structure of the substrate 10, the first limiting stage 60, the second limiting stage 70, and the conductive busbar 30 in a high-voltage distribution box with a simplified conductive terminal connection process provided in this application embodiment. The conductive busbar 30 of the high-voltage distribution box with the simplified conductive terminal connection process provided in this application embodiment has a connection hole 31. The connection hole 31 penetrates the conductive busbar 30 along a third direction Z. The electrical control device 40 includes a connection terminal 41, which at least partially passes through the connection hole 31 to realize the connection between the conductive busbar 30 and the electrical control device 40. Specifically, the connection hole 31 is a circular hole, and the connection terminal 41 is a cylindrical terminal. The cylindrical terminal is inserted into the circular hole to realize the electrical connection between the conductive busbar 30 and the electrical control device 40.
[0039] In some embodiments, the interference fit between the connection hole 31 and the connection terminal 41 in the power distribution box provided in this application saves on the material and equipment costs of bolts and laser equipment compared to bolt connections and laser welding. Furthermore, compared to bolt connections, a tightening test is not required, simplifying the process complexity and reducing processing time costs. Specifically, the maximum upper tolerance of the interference fit between the connection hole 31 and the connection terminal 41 in this application is a mm, satisfying: 0.02 ≤ a ≤ 0.08, and the maximum lower tolerance is b mm, satisfying: 0.02 ≤ b ≤ 0.08.
[0040] In some embodiments, the maximum upper tolerance 'a' can be any value from 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08 or any value between any two values.
[0041] In some embodiments, the maximum lower tolerance b can be any value from 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08 or any value between any two values.
[0042] In some embodiments, the high-voltage distribution box with simplified conductive terminal connection process provided in this application further includes a conductive layer. The conductive layer is disposed between the contact surfaces of the connecting terminal 41 and the connecting hole 31. While improving the conductivity between the contact surfaces of the connecting terminal 41 and the connecting hole 31, it can also fill the gaps between the contact surfaces of the connecting terminal 41 and the connecting hole 31, further improving the conductivity. Specifically, the conductive layer in the distribution box provided in this application is conductive paper, or a conductive adhesive layer is formed by coating conductive adhesive on the outer wall of the connecting terminal 41 or the inner wall of the connecting hole 31, or a conductive adhesive layer is formed by coating conductive paper to form a composite conductive layer.
[0043] In some embodiments, please refer to Figure 1 and Figure 4 , Figure 1A perspective view of a high-voltage distribution box with a simplified conductive terminal connection process provided for an embodiment of this application (exemplarily showing an electrical control device 40). Figure 4 This is a front view of the structure of the base plate 10 and side plate 20 in the high-voltage distribution box with simplified conductive terminal connection process provided in this application embodiment. The high-voltage distribution box with simplified conductive terminal connection process provided in this application embodiment also includes a limiting strip 50. The limiting strip 50 is an elongated limiting member extending along the third direction Z. The limiting strip 50 is connected to the side plate 20 and is disposed in the cavity 21 for abutting against the limiting electrical control device 40. Specifically, multiple limiting strips 50 are provided on each side plate 20. In a direction perpendicular to the third direction Z, multiple limiting strips 50 are spaced apart to provide multi-position limiting support for the electrical control device 40.
[0044] In some embodiments, please refer to Figure 1 and Figure 4 , Figure 1 A perspective view of a high-voltage distribution box with a simplified conductive terminal connection process provided for an embodiment of this application (exemplarily showing an electrical control device 40). Figure 4 This is a front view of the structure of the substrate 10 and side plate 20 in the high-voltage distribution box with a simplified conductive terminal connection process provided in this application embodiment. In the high-voltage distribution box with a simplified conductive terminal connection process provided in this application, multiple side plates 20 surround to form a second opening 22. The second opening 22 communicates with the chamber 21. Along the third direction Z, the second opening 22 and the first opening 11 are respectively disposed on both sides of the limiting strip 50. It can be understood that when the electrical control device 40 needs to be installed in the chamber 21, along the third direction Z, the side of the electrical control device 40 with the connection terminal 41 faces the second opening 22, and the electrical control device 40 is placed into the chamber 21 through the second opening 22 along the extension direction of the limiting strip 50.
[0045] In some embodiments, please refer to Figure 1 and Figure 4 , Figure 1 A perspective view of a high-voltage distribution box with a simplified conductive terminal connection process provided for an embodiment of this application (exemplarily showing an electrical control device 40). Figure 4 This is a front view of the structure of the substrate 10 and side plate 20 in the high-voltage distribution box with a simplified conductive terminal connection process provided in the embodiments of this application. In this application, on the same side plate 20, in a direction perpendicular to the third direction Z, two adjacent limiting strips 50 and side plates 20 surround to form a groove 51.
[0046] In some embodiments, the high-voltage distribution box with simplified conductive terminal connection process provided in this application also includes a potting compound layer. In a direction perpendicular to the surface of the side plate 20, at least a portion of the potting compound layer and the electrical control device 40 are arranged together, and the potting compound layer pots and connects the side plate 20 and the electrical control device 40, for potting and fixing the position of the electrical control device 40 in the chamber 21.
[0047] Furthermore, at least a portion of the potting compound layer is disposed in the groove 51. Understandably, potting compound needs to be poured when constructing the potting compound layer. Due to the presence of the groove 51, it can be ensured that each groove 51 can block and retain a specified amount of potting compound in the direction perpendicular to the third direction Z, thereby improving the uniformity of potting compound pouring. At the same time, due to the presence of the limiting strip 50, the contact area between the potting compound layer and the side plate 20 is increased, thereby improving the connection strength between the side plate 20, the potting compound layer and the electrical control device 40.
[0048] In some embodiments, please refer to Figure 3 , Figure 3 This is a cross-sectional view of the connection structure of the substrate 10, the first limiting platform 60, the second limiting platform 70, and the conductive busbar 30 in a high-voltage distribution box with a simplified conductive terminal connection process provided in this application embodiment. The high-voltage distribution box with a simplified conductive terminal connection process provided in this application embodiment further includes the first limiting platform 60, which is connected to the substrate 10. The first limiting platform 60 is disposed at the edge of the first opening 11 and covers a portion of the first opening 11. Along the third direction Z, the first limiting platform 60 is disposed on the side of the first opening 11 near the side plate 20. It can be understood that when the conductive busbar 30 is disposed in the first opening 11, the first limiting platform 60 can limit the position of the conductive busbar 30 in the third direction Z to meet the position setting requirements of the conductive busbar 30.
[0049] In some embodiments, please refer to Figure 3 , Figure 3This is a cross-sectional view of the connection structure of the substrate 10, the first limiting platform 60, the second limiting platform 70, and the conductive busbar 30 in a high-voltage distribution box with a simplified conductive terminal connection process provided in this application embodiment. The electrical control device 40 also includes the second limiting platform 70, which is connected to the connecting terminal 41. Along the third direction Z, the second limiting platform 70 is disposed at the end of the connecting terminal 41 away from the conductive busbar 30. Along the third direction Z, the orthographic projection of the second limiting platform 70 at least partially coincides with the orthographic projection of the conductive busbar 30, and is used to abut against the conductive busbar 30 to limit the position of the electrical control device 40. Specifically, the second limiting stage 70 is cylindrical and is integrally manufactured with the connecting terminal 41. When the connecting terminal 41 is cylindrical and the connecting hole 31 is circular, the basic dimensions of the connecting terminal 41 and the connecting hole 31 are the same. The axis of the second limiting stage 70 coincides with the axis of the connecting terminal 41, and the diameter of the second limiting stage 70 is larger than the diameter of the connecting terminal 41, so as to meet the requirement that the orthographic projection of the second limiting stage 70 and the orthographic projection of the conductive busbar 30 at least partially coincide.
[0050] Understandably, the embodiments of this application provide a high-voltage distribution box with a simplified conductive terminal connection process, including a base plate 10, side plates 20, conductive busbars 30, and an electrical control device 40. The base plate 10 and multiple side plates 20 are connected and enclose a cavity 21. The electrical control device is connected to the base plate 10 and the side plates 20 and is disposed in the cavity 21. The base plate 10 has a first opening 11, which communicates with the cavity 21. The conductive busbars 30 are at least partially disposed in the first opening 11, and the conductive busbars 30 have connection holes 31. The electrical control device 40 includes connection terminals 41, which are at least partially disposed in the connection holes 31 and are press-fitted with the connection holes 31 to realize the connection between the electrical control device 40 and the conductive busbars 30. This application connects the connection terminal 41 of the electrical control device 40 and the connection hole 31 of the conductive bus 30 directly through an interference fit, thereby realizing the electrical connection between the electrical control device 40 and the conductive bus 30. Compared with bolt connection and laser welding, it saves the material and equipment costs of bolts and laser equipment. At the same time, compared with bolt connection, there is no need to perform a tightening test, which simplifies the process complexity and reduces the process time cost.
[0051] This application has provided a detailed description of a high-voltage distribution box with a simplified conductive terminal connection process according to the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A high-voltage distribution box with simplified conductive terminal connection process, characterized in that, include: A substrate (10) has a first direction (X), a second direction (Y) and a third direction (Z) that are intersecting and are provided. The substrate (10) extends along a plane formed by the first direction (X) and the second direction (Y). Along the third direction (Z), the substrate (10) has a first opening (11). Side plate (20) extends along the third direction (Z) and intersects with the substrate (10). The substrate (10) and the plurality of side plates (20) enclose a cavity (21) which communicates with the first opening (11). A conductive bus (30) is connected to the substrate (10) and is at least partially disposed in the first opening (11). The conductive bus (30) has a connection hole (31). An electrical control device (40) is connected to the side plate (20) and the base plate (10) and disposed in the cavity (21). The electrical control device (40) includes a connection terminal (41), which is at least partially disposed in the connection hole (31) and is interference-fitted with the connection hole (31).
2. The high-voltage distribution box with simplified conductive terminal connection process according to claim 1, characterized in that, The distribution box also includes a conductive layer disposed between the contact surfaces of the connection terminal (41) and the connection hole (31).
3. The high-voltage distribution box with simplified conductive terminal connection process according to claim 2, characterized in that, The conductive layer includes conductive paper and / or a conductive adhesive layer.
4. The high-voltage distribution box with simplified conductive terminal connection process according to claim 1, characterized in that, The power distribution box also includes a limiting strip (50), which extends along the third direction (Z), is connected to the side plate (20), and is disposed in the chamber (21). The limiting strip (50) is used to abut against and limit the electrical control device (40).
5. The high-voltage distribution box with simplified conductive terminal connection process according to claim 4, characterized in that, On the same side plate (20), multiple limiting strips (50) are provided. In a direction perpendicular to the third direction (Z), multiple limiting strips (50) are spaced apart. Two adjacent limiting strips (50) and the side plate (20) enclose each other to form a groove (51). The distribution box also includes a potting compound layer. In a direction perpendicular to the surface of the side plate (20), at least a portion of the potting compound layer and the electrical control device (40) are arranged together, and the potting compound layer pots and connects the side plate (20) and the electrical control device (40). At least a portion of the potting compound layer is disposed in the groove (51).
6. The high-voltage distribution box with simplified conductive terminal connection process according to claim 1, characterized in that, The power distribution box also includes a first limiting platform (60), which is connected to the substrate (10). The first limiting platform (60) is disposed at the edge of the first opening (11) and covers part of the first opening (11). Along the third direction (Z), the first limiting platform (60) is disposed on the side of the first opening (11) near the side plate (20).
7. The high-voltage distribution box with simplified conductive terminal connection process according to claim 1, characterized in that, The electrical control device (40) further includes a second limiting stage (70), which is connected to the connecting terminal (41) along the third direction (Z). The second limiting stage (70) is located at the end of the connecting terminal (41) away from the conductive bus (30). Along the third direction (Z), the orthographic projection of the second limiting stage (70) at least partially coincides with the orthographic projection of the conductive bus (30), and is used to abut against the conductive bus (30) to define the position of the electrical control device (40).
8. The high-voltage distribution box with simplified conductive terminal connection process according to claim 7, characterized in that, The connecting terminal (41) is a cylindrical terminal, and the connecting hole (31) is a circular hole. The basic dimensions of the connecting terminal (41) and the connecting hole (31) are the same. The second limiting platform (70) is cylindrical, and the axis of the second limiting platform (70) coincides with that of the connecting terminal (41). The diameter of the second limiting platform (70) is larger than that of the connecting terminal (41).
9. The high-voltage distribution box with simplified conductive terminal connection process according to claim 1 or 8, characterized in that, The maximum tolerance of the interference fit is a mm, which satisfies: 0.02≤a≤0.
08.
10. The high-voltage distribution box with simplified conductive terminal connection process according to claim 9, characterized in that, Satisfies: a = 0.05.