High-precision new energy automobile fuse bus bar
By using a structural design that combines a triangular insert block with an insert groove, along with the elastic reset of the pop-out block and the compression spring, the problem of cumbersome assembly of fuse busbars in new energy vehicles is solved, enabling fast and stable installation of power terminals and improving assembly efficiency and connection reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAINAN VOCATIONAL TECHN COLLEGE
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-12
AI Technical Summary
The assembly process of existing fuse busbars for new energy vehicles is cumbersome, requiring tools to tighten bolts, which can easily lead to the loss of parts, affecting assembly progress and connection reliability.
The structure design, which combines a triangular insert block with an insert groove, along with the spring force reset of the pop-out block and compression spring, enables quick installation of the power terminal block, reducing tool dependence and deviation.
It simplifies the installation process, shortens the assembly time, improves assembly efficiency, enhances connection stability, avoids the loss of parts, and improves overall stability.
Smart Images

Figure CN224355211U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts technology, and in particular to a high-precision fuse busbar for new energy vehicles. Background Technology
[0002] With the rapid development of the new energy vehicle industry and the increasing popularity of electric vehicles and related products, the battery distribution integrated system (BDU) is one of the core components of new energy vehicles. Its performance and reliability are crucial to the safety and operating efficiency of the entire vehicle. As a key conductive connection component inside the BDU, the busbar undertakes the important functions of connecting various electrical components such as fuses and contactors, as well as connecting external fast charging positive and negative terminals and battery positive and negative terminals. At the same time, it needs to stably carry the specified large current during the operation of the BDU. Therefore, stringent requirements are placed on the structural stability, connection reliability, assembly efficiency and precision of the busbar.
[0003] Regarding the connection and installation of busbars and power terminals, for example, a high-precision new energy vehicle fuse busbar disclosed in patent CN218769972U mainly uses bolts, nuts, and fastening washers to fix the power terminals to the plate. This structure requires pre-set mounting holes on the power terminals and the plate. During assembly, bolts need to be passed through the mounting holes, and then the nuts are tightened with tools such as wrenches to engage with the bolts. The fixing is achieved by the thread locking force of the bolts and nuts and the auxiliary clamping effect of the fastening washers. However, the assembly process requires the use of special tools such as wrenches to tighten the bolts and nuts, which is cumbersome and increases the assembly time. Moreover, the bolts, nuts, and fastening washers are scattered parts that are easy to lose during the assembly process, thus affecting the assembly progress. Therefore, we have introduced a new high-precision new energy vehicle fuse busbar. Utility Model Content
[0004] The main purpose of this utility model is to provide a high-precision fuse busbar for new energy vehicles, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A high-precision fuse busbar for new energy vehicles includes a support plate, a connecting plate fixedly connected to the left end of the support plate, a flat plate fixedly connected to the upper end of the connecting plate, an insert seat fixedly connected to the upper left front side and the upper left rear side of the flat plate, an insert groove opened at the upper end of each insert seat, an inserting mechanism engaged inside each insert groove, a pop-out hole opened at the middle of the right end of each insert seat, two limiting pieces fixedly connected to the left end of each insert seat, a first limiting groove provided between each two adjacent limiting pieces, and a second limiting groove opened at the left front and left rear of the flat plate.
[0007] Preferably, the embedding mechanism includes an embedding block, an extension strip is fixedly connected to the left end of the embedding block, a power terminal is fixedly connected to the lower left end of the extension strip, a sliding cavity is formed in the right part of the embedding block, a compression spring is fixedly connected to the left wall of the sliding cavity, a sliding block is fixedly connected to the right end of the compression spring, and a pop-out block is fixedly connected to the right end of the sliding block.
[0008] Preferably, the embedding block and the embedding slot are engaged and connected, and both the embedding block and the embedding slot are triangular in shape.
[0009] By adopting the above technical solution, the triangular insert block and the insert groove cooperate, and by utilizing the strong stability of the triangular structure, a stable mechanical engagement can be formed after insertion, thereby improving the overall stability of the connection structure.
[0010] Preferably, the sliding block is located inside the sliding cavity, and the outer surface of the sliding block is slidably connected to the inner wall of the sliding cavity.
[0011] By adopting the above technical solution, the sliding block can connect the compression spring and the ejector block.
[0012] Preferably, the pop-out block is slidably connected to the sliding cavity, and the pop-out block is engaged with the pop-out hole.
[0013] By adopting the above technical solution, the pop-out block automatically pops out from the corresponding pop-out hole under the elastic force of the compression spring, thereby making it convenient and quick to install the power terminal onto the flat plate.
[0014] Preferably, the two inserts are the same size, and the two pop-out holes are respectively connected to the interior of the two insert slots.
[0015] Preferably, the two limiting pieces are respectively engaged with the two extension strips, and the two second limiting grooves are respectively engaged with the two power terminals.
[0016] By adopting the above technical solution, deviations during the assembly process were reduced.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1. By applying force to the pop-out block, the pop-out block moves into the sliding cavity and compresses the compression spring through the sliding block. Then, the insert block is inserted into the insert groove from above the insert seat. The pop-out block automatically pops out from the corresponding pop-out hole under the elastic force of the compression spring, so that the power terminal can be easily and quickly installed on the plate without the need for wrenches or other tools to tighten the bolts. This simplifies the installation steps, shortens the installation time, improves the assembly efficiency, and eliminates the worry of losing bolts.
[0019] 2. When the insert block is inserted into the insert groove from above the insert base, both the insert block and the insert groove are triangular. The triangular insert block and the insert groove cooperate with each other. Taking advantage of the strong stability of the triangular structure, a solid mechanical engagement can be formed after insertion, which improves the overall stability of the connection structure. At the same time, the extension strip is inserted into the first limiting groove and the power terminal is inserted into the second limiting groove, which reduces the deviation during the assembly process. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of a high-precision fuse busbar for new energy vehicles according to this utility model;
[0021] Figure 2 This is a top view of a high-precision fuse busbar for new energy vehicles according to this utility model;
[0022] Figure 3 This is a schematic diagram of the overall flat structure of a high-precision new energy vehicle fuse busbar according to the present invention.
[0023] Figure 4 This is a schematic diagram of the overall structure of the embedding mechanism for a high-precision new energy vehicle fuse busbar according to this utility model.
[0024] In the diagram: 1. Support plate; 2. Connecting plate; 3. Flat plate; 4. Embedded seat; 5. Embedded groove; 6. Embedded mechanism; 61. Embedded block; 62. Extension strip; 63. Power terminal; 64. Sliding cavity; 65. Compression spring; 66. Sliding block; 67. Pop-out block; 7. Pop-out hole; 8. Limiting piece; 9. First limiting groove; 10. Second limiting groove. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] Please see Figure 1-4 This utility model provides a technical solution:
[0029] A high-precision new energy vehicle fuse busbar includes a support plate 1, a connecting plate 2 fixedly connected to the left end of the support plate 1, a flat plate 3 fixedly connected to the upper end of the connecting plate 2, an insert seat 4 fixedly connected to the front left side and the rear left side of the upper end of the flat plate 3, an insert groove 5 opened at the upper end of each insert seat 4, an inserting mechanism 6 engaged inside each insert groove 5, a pop-out hole 7 opened in the middle of the right end of each insert seat 4, two limiting pieces 8 fixedly connected to the left end of each insert seat 4, a first limiting groove 9 provided between each of the two adjacent limiting pieces 8, and a second limiting groove 10 opened at the front left side and the rear left side of the flat plate 3.
[0030] In this embodiment, the embedding mechanism 6 includes an embedding block 61. An extension strip 62 is fixedly connected to the left end of the embedding block 61. A power terminal 63 is fixedly connected to the lower left end of the extension strip 62. A sliding cavity 64 is opened in the right part of the embedding block 61. A compression spring 65 is fixedly connected to the left wall of the sliding cavity 64. A sliding block 66 is fixedly connected to the right end of the compression spring 65. A pop-out block 67 is fixedly connected to the right end of the sliding block 66. The embedding block 61 is engaged with the embedding groove 5. Both the embedding block 61 and the embedding groove 5 are triangular. The sliding block 66 is located inside the sliding cavity 64. The outer surface of the sliding block 66 is slidably connected to the inner wall of the sliding cavity 64. The pop-out block 67 is slidably connected to the sliding cavity 64 and is engaged with the pop-out hole 7.
[0031] The above solution involves applying force to the pop-out block 67, causing it to move into the sliding cavity 64 and compress the compression spring 65 via the sliding block 66. Then, the insert block 61 is inserted into the insert groove 5 from above the insert seat 4. Under the elastic force of the compression spring 65, the pop-out block 67 automatically pops out from the corresponding pop-out hole 7, making it easy and quick to install the power terminal 63 onto the flat plate 3 without the need for wrenches or other tools to tighten the bolts. This simplifies the installation process, shortens the installation time, improves assembly efficiency, and eliminates concerns about bolt loss.
[0032] In this embodiment, the two inserts 4 are the same size, the two pop-out holes 7 are respectively connected to the interior of the two insert slots 5, the two limiting pieces 8 are respectively engaged with the two extension strips 62, and the two second limiting slots 10 are respectively engaged with the two power terminals 63.
[0033] With the above solution: when the insert block 61 is inserted into the insert groove 5 from above the insert seat 4, both the insert block 61 and the insert groove 5 are triangular. The triangular insert block 61 cooperates with the insert groove 5. Utilizing the strong stability of the triangular structure, a stable mechanical engagement can be formed after insertion, improving the overall stability of the connection structure. At the same time, the extension strip 62 is inserted into the first limiting groove 9, and the power terminal 63 is inserted into the second limiting groove 10, reducing deviations during the assembly process.
[0034] It should be noted that this utility model is a high-precision fuse busbar for new energy vehicles. During use, by applying force to the pop-out block 67, the pop-out block 67 moves towards the sliding cavity 64. During this process, the sliding block 66 compresses the compression spring 65, and then the insert block 61 is inserted into the insert groove 5 from above the insert seat 4. The pop-out block 67 automatically pops out from the corresponding pop-out hole 7 under the elastic force of the compression spring 65, thereby allowing the power terminal 63 to be conveniently and quickly installed on the flat plate 3. During the process of the insert block 61 being inserted into the insert groove 5, due to... Both the insert block 61 and the insert groove 5 are triangular in shape. The triangular structure has extremely strong stability. When the two are engaged, they can form a solid mechanical engagement, which improves the overall stability of the connection structure. At the same time, the extension strip 62 will be inserted into the first limiting groove 9, and the power terminal 63 will be inserted into the second limiting groove 10. This reduces possible deviations during assembly. The entire installation and assembly process does not require the use of wrenches or other tools to tighten the bolts, which simplifies the installation steps, shortens the installation time, improves the assembly efficiency, and eliminates concerns about lost bolts.
[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A high-precision fuse busbar for new energy vehicles, comprising a support plate (1), characterized in that: The left end of the tray (1) is fixedly connected to a connecting plate (2), the upper end of the connecting plate (2) is fixedly connected to a flat plate (3), the upper left front side and the upper left rear side of the flat plate (3) are both fixedly connected to an embedding seat (4), the upper end of the two embedding seats (4) is provided with an embedding groove (5), the two embedding grooves (5) are both engaged with an embedding mechanism (6), the middle right end of the two embedding seats (4) is provided with a pop-out hole (7), the left end of the two embedding seats (4) is fixedly connected to two limiting pieces (8), the two adjacent limiting pieces (8) are provided with a first limiting groove (9), the front left end and the rear left end of the flat plate (3) are both provided with a second limiting groove (10); The embedding mechanism (6) includes an embedding block (61), an extension strip (62) is fixedly connected to the left end of the embedding block (61), a power terminal (63) is fixedly connected to the lower left end of the extension strip (62), a sliding cavity (64) is opened in the right part of the embedding block (61), a compression spring (65) is fixedly connected to the left wall of the sliding cavity (64), a sliding block (66) is fixedly connected to the right end of the compression spring (65), and a pop-out block (67) is fixedly connected to the right end of the sliding block (66).
2. The high-precision new energy vehicle fuse busbar according to claim 1, characterized in that: The embedding block (61) is engaged with the embedding groove (5), and both the embedding block (61) and the embedding groove (5) are triangular.
3. The high-precision new energy vehicle fuse busbar according to claim 1, characterized in that: The sliding block (66) is located inside the sliding cavity (64), and the outer surface of the sliding block (66) is slidably connected to the inner wall of the sliding cavity (64).
4. The high-precision new energy vehicle fuse busbar according to claim 1, characterized in that: The pop-out block (67) is slidably connected to the sliding cavity (64), and the pop-out block (67) is interlocked with the pop-out hole (7).
5. A high-precision new energy vehicle fuse busbar according to claim 1, characterized in that: The two inserts (4) are the same size, and the two pop-out holes (7) are respectively connected to the interior of the two insert slots (5).
6. A high-precision new energy vehicle fuse busbar according to claim 1, characterized in that: The two limiting pieces (8) are respectively engaged with the two extension strips (62), and the two second limiting grooves (10) are respectively engaged with the two power terminals (63).