Cover plate structure of electric vehicle controller
By designing the cover structure of the electric vehicle controller, the problems of high processing cost and material waste in the existing technology were solved, and the conductive busbar was firmly fixed and the overall height was reduced, thus improving the compactness and reliability of the structure.
Patent Information
- Application Number
- CN202520324571.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-27
AI Technical Summary
The existing external wire connection structure of electric vehicle controllers has high processing costs and wastes a lot of materials.
Design a cover structure for an electric vehicle controller, including a flat area and a protruding area. The protruding area has a recess and a countersunk groove. Steps are used to fix the conductive busbars, reducing the overall height and improving the structural compactness.
This design achieves a secure fixation of the conductive busbar, reduces the overall height of the electric vehicle controller, and improves the compactness and reliability of the structure.
Smart Images

Figure CN223829610U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of electric vehicle controllers, in particular to an electric vehicle controller circuit board structure and an electric vehicle controller. BACKGROUND
[0002] In order to realize the electrical connection between the external lead and the electric vehicle controller, a conductive columnar structure made of copper, aluminum or other metals is usually used in the industry, and the columnar structure is realized through machining. However, the machining cost is high, and the material is wasted. CONTENT OF THE UTILITY MODEL
[0003] The utility model aims at providing a cover plate structure of an electric vehicle controller, which can fix a conductive sheet busbar, reduce the overall height of the electric vehicle controller, has a compact structure and high reliability.
[0004] The utility model provides a technical scheme, which comprises:
[0005] A cover plate structure of an electric vehicle controller comprises an upper surface, the upper surface comprises a flat area and a protruding area, the protruding area has a recess, the recess has three countersunk grooves in the middle, a communication groove is arranged between every two countersunk grooves, a step is arranged in the countersunk groove, the step comprises a second step and a first step, the first step is provided with a first slot hole, the first slot hole is used for placing a nut, the second step is provided with a second slot hole, a rectangular opening is arranged in the middle of the second slot hole, and the first slot hole and the second slot hole have different depths.
[0006] Further, the flat area is arranged on both sides of the protruding area, and the height of the protruding area is higher than that of the flat area.
[0007] Further, the protruding area is H-shaped.
[0008] Further, the flat area is two-shaped. Further, the first slot hole is a square slot hole, and the second slot hole is a rectangular slot hole.
[0009] Further, the depth of the second slot hole is greater than that of the first slot hole.
[0010] Further, the first step extends to the lower surface, and the bottom surface of the first step is provided with a cylindrical recess.
[0011] Further, the second step extends to the lower surface, and the bottom surface of the second step is formed with a rectangular recess.
[0012] Further, the upper cover is placed on the first step.
[0013] Further, the busbar passes through the rectangular opening, and a waterproof rubber groove space is formed between the busbar and the second slot hole.
[0014] The utility model has the advantages that:
[0015] The second step of the cover plate is used to fix the middle section of the busbar, and the first step is used to fix the end of the busbar. This can firmly fix the busbar and reduce the overall height of the electric vehicle controller, resulting in a compact structure. Attached Figure Description
[0016] Figure 1 This is a view of the lower surface of the cover plate structure;
[0017] Figure 2 This is a cross-sectional view of the electric vehicle controller;
[0018] Figure 3 This is a sectional view of the cover plate structure;
[0019] Figure 4 This is a top view of the cover plate structure;
[0020] Figure 5 It is a three-dimensional diagram of the cover plate structure;
[0021] Explanation of reference numerals in the attached drawings: upper surface (1), flat area (11), protruding area (12), recess (2), countersunk groove (3), connecting groove (4), step (5), second step (51), first step (52), first slot (521), second slot (511), rectangular opening (5111), cylindrical groove (522), rectangular groove (512), top cover (6), high current conductive busbar (7). Detailed Implementation
[0022] like Figure 5 As shown, a cover structure for an electric vehicle controller includes an upper surface (1), which includes a flat area (11) and a protruding area (12). The protruding area (12) has a recess (2), and the recess (2) has three countersunk grooves (3) in the middle. A connecting groove (4) is provided between every two countersunk grooves (3). A step (5) is provided in the countersunk groove (3). The step (5) includes a second step (51) and a first step (52). The first step (52) is provided with a first slot (521) for placing a nut. The second step (51) is provided with a second slot (511), and a rectangular opening (5111) is provided in the middle of the second slot (511). The first slot (521) and the second slot (511) have different depths. The shape of the irregular opening can be customized according to the shape and size of the high-current conductive component (such as the high-current conductive busbar (7)). For example, if it is a flat conductive busbar (7), it can be designed as a corresponding flat shape.
[0023] like Figure 4As shown, the flat region (11) is located on both sides of the protruding region (12), and the height of the protruding region (12) is higher than the height of the flat region (11). Furthermore, the protruding region (12) is H-shaped. Furthermore, the flat region (11) is type II.
[0024] like Figure 3 As shown, the first slot (521) is a square slot, and the second slot (511) is a rectangular slot. Depending on the fixing method, the first slot (521) can be designed in various shapes, such as square or circular. In this embodiment, the first slot (521) is a square slot. The square slot design facilitates the mating with a square nut, improving the stability of the fixing.
[0025] Furthermore, the depth of the second slot (511) is greater than the depth of the first slot (521).
[0026] like Figure 1 and Figure 2 As shown, the first step (52) extends to the lower surface, and a cylindrical groove (522) is provided on the bottom surface of the first step (52). The design of the cylindrical groove (522) can reduce the weight of the cover plate to a certain extent, and at the same time, it can also serve as a buffer structure for stress concentration areas, thereby improving the stability of the structure. The shape of the concave structure can be varied according to actual needs, such as being designed as a square groove, a polygonal groove, etc., to adapt to different mechanical performance requirements and spatial layouts.
[0027] Furthermore, the second step (51) extends to the lower surface, and a rectangular groove (512) is formed on the bottom surface of the second step (51).
[0028] The cover plate structure is a component of the controller. The nut can be pre-embedded in the first slot (521) during injection molding, or a square slot can be left in the injection molding to place the nut. In addition to the above methods, a thread can be set in the first slot (521) to directly screw the nut in; or an elastic snap-fit structure can be set in the first slot (521) to snap and fix the nut with a special structure. The rectangular opening (5111) of the second slot (511) is used for the high current conductive busbar (7) to pass through, and the space around the rectangular opening (5111) of the second slot (511) is used to form a waterproof glue groove space with the top cover (6) after the high current conductive busbar (7) passes through.
[0029] Furthermore, the top cover (6) is placed on the first step (52). With the support of the first step (52), the top cover (6) can effectively cover the internal components of the controller, playing a protective and sealing role. Various connection methods can be used between the top cover (6) and the first step (52), such as bolt connection, snap connection or sealant bonding, to improve the stability and sealing of the connection.
[0030] Furthermore, the high-current conductive busbar (7) passes through the rectangular opening (5111), and a waterproof adhesive groove space is formed between the high-current conductive busbar (7) and the second slot (511).
[0031] The beneficial effects of this utility model are:
[0032] The second step (51) of the cover plate is used to fix the middle section of the high current conductive busbar (7), and the first step (52) is used to fix the end of the high current conductive busbar (7). This can firmly fix the conductive busbar and reduce the overall height of the electric vehicle controller, resulting in a compact structure.
[0033] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention.
Claims
1. A cover plate structure for an electric vehicle controller, characterized in that: The upper surface includes a flat area and a protruding area. The protruding area has a recessed portion with three countersunk grooves in the middle. A connecting groove is provided between every two countersunk grooves. A step is provided in the countersunk groove. The step includes a second step and a first step. The first step has a first slot for placing a nut. The second step has a second slot with a rectangular opening in the middle. The first slot and the second slot have different depths.
2. The cover plate structure of the electric vehicle controller according to claim 1, characterized in that: The flat areas are located on both sides of the protruding areas, and the height of the protruding areas is higher than the height of the flat areas.
3. The cover plate structure of the electric vehicle controller according to claim 2, characterized in that: The prominent area is H-shaped.
4. The cover plate structure of the electric vehicle controller according to claim 3, characterized in that: The flat area is type II.
5. The cover plate structure of the electric vehicle controller according to claim 4, characterized in that: The first slot is a square slot, and the second slot is a rectangular slot.
6. The cover plate structure of the electric vehicle controller according to claim 5, characterized in that: The depth of the second slot is greater than the depth of the first slot.
7. The cover plate structure of the electric vehicle controller according to claim 6, characterized in that: The first step extends to the lower surface, and a cylindrical groove is provided on the bottom surface of the first step.
8. The cover plate structure of the electric vehicle controller according to claim 7, characterized in that: The second step extends to the lower surface, and a rectangular groove is formed on the bottom surface of the second step.
9. The cover plate structure of the electric vehicle controller according to claim 8, characterized in that: The top cover is placed on the first step.
10. The cover plate structure of the electric vehicle controller according to claim 9, characterized in that: The busbar passes through the rectangular opening, and a waterproof adhesive groove space is formed between the busbar and the second slot.