Integrated busbar bus member with local insulation protection function and integrated busbar

Abstract

An integrated busbar confluence piece with a local insulation protection function comprises a confluence piece body and an insulation structure, the confluence piece body comprises a first connecting part, a connecting arm and a second connecting part which are sequentially arranged, the insulation structure comprises a first cover body and a second cover body, the first cover body is detachably connected to the second cover body, and the second cover body is detachably connected to the first connecting part. A containing bin with the two ends communicated is formed between the first cover body and the second cover body, the connecting arm is installed in the containing bin, and the first cover body and the second cover body are both made of insulating materials. The utility model also provides an integrated busbar using the above integrated busbar bus member. Compared with the prior art, on the basis of realizing an insulation protection effect, the two cover bodies can be assembled through the detachable connecting structure, so that the steps are simple, the time is short, and the efficiency is high; and if the insulation structure is cracked, the insulation structure can be detached and replaced, the bus piece main body can be used, and the whole bus piece cannot be scrapped, so that the cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of integrated busbar technology, specifically relating to an integrated busbar busbar with local insulation protection function and an integrated busbar using the integrated busbar busbar. Background Technology

[0002] Battery modules are equipped with integrated busbars to collect operating parameters and ensure safe operation. Existing integrated busbars typically include a support frame, a data acquisition component (such as a flexible printed circuit board) mounted on the support frame, and a busbar. The data acquisition component has a data acquisition end (such as a nickel plate), which connects to the busbar, which in turn connects to the battery cell. To improve safety and prevent circuit interference, all parts of the busbar except those connected to the battery cell and nickel plate are insulated. This is typically done by pre-insulating with high-temperature tape, followed by forming an insulating layer through powder impregnation or plastic impregnation. However, this insulation protection structure has the following drawbacks: First, applying the high-temperature tape is done manually, and removing it is also manual, resulting in low efficiency and high costs. Second, if the insulation layer cracks during use, causing insulation failure, the entire busbar will be rendered unusable. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an integrated busbar bus with local insulation protection function.

[0004] To achieve the above objectives, this utility model discloses an integrated busbar busbar with local insulation protection function, including a busbar body and an insulation structure. The busbar body includes a first connecting part, a connecting arm and a second connecting part arranged in sequence. The insulation structure includes a first cover and a second cover. The first cover is detachably connected to the second cover, and a receiving chamber with both ends through is formed between the first cover and the second cover. The connecting arm is installed in the receiving chamber. The materials of the first cover and the second cover are both insulating materials.

[0005] Preferably, the cross-section of the connecting arm is curved, the cross-sectional shape of the receiving chamber is the same as the interface shape of the connecting arm, and the connecting arm is matched with the inner wall of the receiving chamber.

[0006] Preferably, one end of the first cover is hinged to one end of the second cover, and the other end of the first cover is detachably connected to the other end of the second cover.

[0007] Preferably, one of the other ends of the first cover and the second cover is provided with a buckle, and the other is provided with a groove that engages with the buckle.

[0008] Preferably, the buckle is provided with a guide slope.

[0009] Preferably, there are multiple buckles, and the multiple buckles are spaced apart.

[0010] Preferably, the dimension of the receiving compartment in the height direction is 0.04 mm to 0.06 mm larger than the thickness of the connecting arm.

[0011] Preferably, the second cover has a mounting groove with both ends through and the opening facing upward, and the first cover can be closed onto the second cover to form the receiving compartment.

[0012] This utility model also provides an integrated busbar using the above-mentioned integrated busbar bus component with local insulation protection function.

[0013] An integrated busbar includes a support frame, a data acquisition component mounted on the support frame, and a busbar busbar with local insulation protection function as described in any of the above claims.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] The insulating structure includes a first cover and a second cover. The first cover is detachably connected to the second cover, and a receiving chamber is formed between the first cover and the second cover with both ends through it. The connecting arm is installed in the receiving chamber. Since the materials of the first cover and the second cover are insulating materials, the connecting arm is completely wrapped after it is installed in the receiving chamber between the two covers, thus providing insulation protection for the connecting arm.

[0016] Since the first cover is detachably connected to the second cover, during installation, it is only necessary to cover the second cover with the first cover. There is no need to use high-temperature tape, perform powder or plastic impregnation processes, and remove the tape later as required by existing technologies. The steps are simple, the time is short, and the efficiency is high. If the insulation structure cracks, the insulation structure can be removed and replaced. The main body of the busbar can still be used, and the entire busbar will not be scrapped, which reduces costs. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the integrated busbar bus with local insulation protection function in Example 1;

[0018] Figure 2 for Figure 1 A three-dimensional exploded view of the integrated busbar busbar assembly;

[0019] Figure 3 for Figure 1 A three-dimensional exploded structural diagram of the integrated busbar busbar from another perspective;

[0020] Figure 4 for Figure 1A three-dimensional structural diagram of the integrated busbar busbar in the open state;

[0021] Busbar body 10; First connecting part 11; Connecting arm 12; Second connecting part 13;

[0022] First cover 20; pivot 21; slot 22

[0023] Second cover 30; groove 31; buckle 32; guide slope 33; mounting groove 34. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1

[0026] An integrated busbar bus with local insulation protection function, see [link to relevant documentation]. Figures 1-4 It includes a busbar body 10 and an insulation structure. The busbar body 10 is an aluminum busbar and includes a first connecting part 11, a connecting arm 12 and a second connecting part 13 that are integrally formed and arranged in sequence. The insulation structure completely covers the connecting arm 12.

[0027] The insulating structure includes a first cover 20 and a second cover 30, forming a through-cell chamber between the first cover 20 and the second cover 30, allowing the first and second connecting parts 13 to extend out of the chamber. A connecting arm 12 is installed within the chamber. Both the first cover 20 and the second cover 30 are made of insulating material. After the connecting arm 12 is installed in the chamber between the two covers, it is completely enclosed, thus providing insulation protection. Since the first cover 20 is detachably connected to the second cover 30, installation simply requires placing the first cover 20 over the second cover 30, eliminating the need for high-temperature tape, powder or plastic impregnation, and subsequent tape removal as required in existing technologies. This simplifies the process, reduces time, and increases efficiency. Furthermore, the detachable connection of the first cover 20 to the second cover 30 means that if the insulating structure cracks, it can be removed and replaced, allowing the busbar body 10 to remain usable without rendering the entire busbar unusable, thus reducing costs.

[0028] In this embodiment, the cross-section of the connecting arm 12 is curved, specifically, the cross-sectional shape of the connecting arm 12 is C-shaped. This can act as a buffer when the battery cell expands, preventing the connection points of the first and second connecting parts 13 with the battery cell from being pulled or torn apart. The cross-sectional shape of the receiving compartment is the same as the interface shape of the connecting arm 12. The connecting arm 12 is matched with the inner sidewall of the receiving compartment, which makes the structure of the first and second covers 30 compact. At the same time, since the shape inside the compartment is irregular and non-linear, the connecting arm 12 can be limited and fixed inside the receiving compartment after it is installed. Thus, there is no need to set a limiting structure for the connecting arm 12 inside the receiving compartment, making the structure simple.

[0029] Since the cross-sectional shape of the receiving chamber is also curved, there are parts with height differences. In this embodiment, in order to avoid plastic burrs scratching the main body 10 of the manifold, rounded corners are designed at the locations with height differences.

[0030] In this embodiment, one end of the first cover 20 is hinged to one end of the second cover 30, and the other end of the first cover 20 is detachably connected to the other end of the second cover 30. Thus, during assembly or disassembly, the cover can be opened or closed simply by rotating it, making it convenient to use.

[0031] Specifically, one end of the second cover 30 has two latching slots 31, and one end of the first cover 20 has two rotating shafts 21. The rotating shafts 21 are engaged in the latching slots 31, thereby achieving a rotatable connection between the two covers. The other end of the first cover 20 has a slot 22, and the other end of the second cover 30 has a buckle 32. When the first cover 20 is closed, the buckle 32 of the second cover 30 engages with the slot 22 of the first cover 20, thereby fixing the two together. The rotatable connection structure and the latching structure of the first cover 20 and the second cover 30 are simple.

[0032] The buckle 32 is provided with a guide slope 33. When the first cover 20 is closed, the first cover 20 can be fastened along the guide slope 33, which facilitates the fastening of each other.

[0033] There are multiple buckles 32, which are spaced apart. Using multiple buckles 32 for fastening can improve the reliability of the connection.

[0034] In this embodiment, the dimension of the receiving chamber in the height direction is 0.04mm to 0.06mm larger than the thickness of the connecting arm 12. Within this dimension range, the connecting arm 12 can be held in place within the receiving chamber, ensuring the assembly effect. Simultaneously, when the battery cell expands, it pulls on the busbar body 10. Due to the assembly gap, the busbar body 10 can be straightened and deformed within the receiving chamber, achieving a buffering effect. This avoids the problem of insufficient space within the receiving chamber preventing the busbar body 10 from deforming and thus reducing the connection structure between the busbar body 10 and the battery cell, leading to reduced reliability and service life. Furthermore, the assembly gap allows the heat generated by the connecting arm 12 to dissipate externally, providing good heat dissipation.

[0035] In this embodiment, the second cover 30 is provided with an installation groove 34 that is through at both ends and has the opening facing upward. During assembly, the main body 10 of the busbar can be stably and reliably placed in the installation groove 34, which facilitates assembly. The first cover 20 can be covered on the second cover 30 to form a receiving compartment.

[0036] Example 2

[0037] An integrated busbar includes a support frame, a data acquisition component mounted on the support frame, and a busbar assembly. The busbar assembly adopts the integrated busbar busbar assembly with local insulation protection function of Embodiment 1.

[0038] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An integrated busbar assembly with local insulation protection function, comprising a busbar assembly body and an insulation structure, the busbar assembly body comprising a first connecting portion, a connecting arm and a second connecting portion arranged in sequence, and the insulation structure completely covering the connecting arm, characterized in that: The insulation structure comprises a first cover and a second cover, the first cover is detachably connected to the second cover, a through accommodating cavity is formed between the first cover and the second cover, the connecting arm is installed in the accommodating cavity, and the first cover and the second cover are made of insulation materials.

2. The integrated busbar assembly with local insulation protection according to claim 1, characterized in that: The cross section of the connecting arm is a curve, the cross section shape of the accommodating cavity is the same as the interface shape of the connecting arm, and the connecting arm is limitedly matched with the inner side wall of the accommodating cavity.

3. The integrated busbar assembly with local insulation protection according to claim 1, wherein: One end of the first cover is hingedly connected to one end of the second cover, and the other end of the first cover is detachably connected to the other end of the second cover.

4. The integrated busbar assembly with local insulation protection according to claim 3, characterized in that: One of the other end of the first cover and the other end of the second cover is provided with a buckle, and the other is provided with a clamping groove matched with the buckle.

5. The integrated busbar assembly with local insulation protection according to claim 4, characterized in that: The buckle is provided with a guide inclined surface.

6. The integrated busbar assembly with local insulation protection according to claim 4, characterized in that: The buckle has a plurality of buckles which are arranged at intervals.

7. The integrated busbar assembly with local insulation protection according to claim 1, wherein: The size of the accommodating cavity in the height direction is 0.04mm-0.06mm larger than the thickness of the connecting arm.

8. The integrated busbar assembly with local insulation protection according to claim 1, wherein: The second cover is provided with a through mounting groove with a notch upward, and the first cover is coverable on the second cover to form the accommodating cavity.

9. An integrated busbar comprising a support, a collecting assembly arranged on the support and a busbar, characterized in that, The busbar is the integrated busbar with the local insulation protection function as claimed in any one of claims 1-8.

Images