Multi-functional busbar support

Abstract

This utility model relates to a multifunctional busbar bracket, including an upper shell, a lower shell, a water-cooling plate, and a battery cell. The upper part of the plastic bracket is provided with a glue-blocking structure bent towards the battery cell. The glue-blocking structure includes a V-shaped structure composed of an upper baffle and a lower baffle, as well as a buffer gap between the upper baffle and the lower baffle. This utility model integrates the glue-blocking function of the glue-blocking foam into the plastic bracket by replacing the glue-blocking foam with the upper and lower baffles installed on the top of the plastic bracket. The part of the plastic bracket that overlaps the top of the battery cell is made into an open structure and is compressible. After the plastic bracket is installed, the upper and lower baffles unfold to form a glue-blocking wall. When the cold plate is pressed after applying glue, it can block the glue and ensure the thickness of the glue, acting as a height limiter. This can reduce the number of parts, thereby reducing costs; and it can also reduce assembly time, effectively compressing costs.

Description

Technical Field

[0001] This utility model relates to a new energy battery module for commercial vehicles, specifically a multi-functional busbar bracket. Background Technology

[0002] In existing technologies, such as Figure 1 As shown, especially for blade cell battery packs, the plastic bracket used for the busbar has a single function. When the cold plate is glued to the top, a glue-blocking foam (10) is needed to meet the glue-blocking function, and it does not have the function of limiting the glue thickness. If the height needs to be limited, a height-limiting strip needs to be added. This method results in a higher height and is more complicated to install. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a multifunctional busbar bracket, which can reduce the number of parts, thereby reducing costs; and reduce assembly time, which can effectively compress costs.

[0004] To achieve the above objectives, this utility model provides a multifunctional busbar bracket, comprising an upper housing, a lower housing, a water-cooling plate, and battery cells. Multiple battery cells are arranged horizontally inside the lower housing. Two sets of copper busbars are connected to the positive and negative terminals of the battery cells, respectively. The ends of the two sets of copper busbars are connected to a low-voltage socket, an MSD (Medium-Density Socket), and a high-voltage junction box fixedly installed outside the lower housing. Multiple battery cells are interconnected via plastic brackets fixed to their end faces. The copper busbars are fixed to the plastic brackets by copper busbar fasteners. A protective cover is fixedly installed on the plastic bracket via an aluminum plate bracket. The upper part of the plastic bracket has a baffle structure bent towards one side of the battery cells. The baffle structure includes a V-shaped structure composed of an upper baffle and a lower baffle, and a buffer gap between the upper and lower baffles. Thermally conductive adhesive covers the battery cells and is blocked by the baffle structure. The water-cooling plate is installed on the thermally conductive adhesive by rivets. The water-cooling plate is connected to a water nozzle on the lower housing via a water pipe. The upper housing encloses the lower housing.

[0005] In addition, the multifunctional busbar support proposed according to the above embodiments of this utility model may also have the following additional technical features:

[0006] As a further improvement of this utility model, the adhesive-blocking structure of the plastic bracket is made of engineering plastic.

[0007] As a further improvement of this utility model, an explosion-proof valve is installed on the surface of the lower housing.

[0008] As a further improvement of this utility model, the copper busbar is fixed to the lower housing by the electrode seat.

[0009] As a further improvement of this utility model, the copper busbar is wrapped with an insulating layer.

[0010] By means of the above solution, this utility model has at least the following advantages: Compared with conventional battery pack brackets, by replacing the adhesive-blocking foam with upper and lower baffles installed on the top of the plastic bracket, the adhesive-blocking function of the adhesive-blocking foam is integrated into the plastic bracket. The part of the plastic bracket that overlaps the top of the battery cell is made into an open structure and has compressibility. After the plastic bracket is installed, the upper and lower baffles unfold to form an adhesive-blocking wall. When pressing the cold plate after applying adhesive, it can block the adhesive and ensure the thickness of the adhesive, thus acting as a height limiter. This can reduce the number of parts and thus reduce costs; and it can also reduce assembly time, which can effectively reduce costs. Attached Figure Description

[0011] Figure 1 This is a 3D schematic diagram of the adhesive shielding structure of an existing battery pack;

[0012] Figure 2 This is the battery pack assembly diagram;

[0013] Figure 3 It is a 3D view of the battery pack with the upper casing removed;

[0014] Figure 4 It is a 3D view of the battery pack with the upper casing and water cooling plate removed;

[0015] Figure 5 yes Figure 4 A magnified view of a portion at point A;

[0016] Figure 6 This is a 3D schematic diagram of a multi-functional busbar support;

[0017] Figure 7 This is a side view of a multi-functional busbar bracket;

[0018] Figure 8 yes Figure 7 A magnified view of a portion at point B;

[0019] Figure 9 This is a side view of the multi-functional busbar bracket with the upper housing removed;

[0020] Figure 10 yes Figure 9 A cross-sectional view of CC;

[0021] Figure 11 yes Figure 10 A magnified view of a portion at point D;

[0022] In the diagram: 1. Upper housing, 2. Lower housing, 3. Water-cooled plate, 4. Rivet, 5. Aluminum plate bracket, 6. Protective cover, 7. Copper busbar fastener, 8. Copper busbar, 9. Plastic bracket, 91. Upper baffle, 92. Intermediate buffer gap, 93. Lower baffle, 10. Adhesive-resistant foam, 11. Thermally conductive adhesive, 12. Base plate, 13. Water pipe, 14. Water tap, 15. Explosion-proof valve, 16. Low-voltage socket, 17. MSD, 18. High-voltage junction box, 19. Battery cell. Detailed Implementation

[0023] The multifunctional busbar bracket of this utility model is described below with reference to the accompanying drawings.

[0024] In Embodiment 1 of this application, as Figures 2 to 10 As shown, this multifunctional busbar bracket (hereinafter referred to as "the present invention") includes an upper housing 1, a lower housing 2, a water-cooled plate 3, and battery cells 19. Multiple battery cells 19 are arranged horizontally inside the lower housing 2. Two sets of copper busbars 8 are respectively connected to the positive and negative terminals of the battery cells 19. The ends of the two sets of copper busbars 8 are connected to a low-voltage socket 16, an MSD 17, and a high-voltage junction box 18 fixedly installed outside the lower housing 2. The multiple battery cells 19 are interconnected through plastic brackets 9 fixedly installed on their end faces. The copper busbars 8 are fixed to the plastic brackets 9 by copper busbar fixing parts 7, protecting them. The cover 6 is fixedly installed on the plastic bracket 9 by the aluminum plate bracket 5; the upper part of the plastic bracket 9 is provided with a glue-blocking structure that bends towards the side of the battery cell 19. The glue-blocking structure includes a V-shaped structure composed of an upper baffle 91 and a lower baffle 93, and a buffer gap 92 between the upper baffle 91 and the lower baffle 93. The thermally conductive adhesive 11 covers the battery cell 19 and is blocked by the glue-blocking structure. The water-cooling plate 3 is installed on the thermally conductive adhesive 11 by rivets 4. The water-cooling plate 3 is connected to the water nozzle 14 provided on the lower housing 2 by water pipe 13. The upper housing 1 closes the lower housing 2. When the thermally conductive adhesive 11 is applied and the water-cooling plate 3 is pressed on, the upper baffle 91 and the lower baffle 93 will block the thermally conductive adhesive 11, preventing it from flowing out to the end face of the battery cell 19. At the same time, the upper baffle 91 and the lower baffle 93 can be compressed, and the gap between them will continuously decrease until the water-cooling plate 3 is pressed onto the solid wall thickness of the bent plastic bracket 9, which also ensures the thickness of the thermally conductive adhesive 11.

[0025] Generally, the wall thickness of the bent portion of the plastic bracket 9 is 0.8 to 2.0 mm, the wall thickness of the upper baffle 91 and the lower baffle 93 is generally 0.4 to 0.2 times the wall thickness of the bent portion, and the remaining portion is the intermediate buffer gap 92; the height formed by the upper baffle 91 and the lower baffle 93 is generally 2 to 4 times the wall thickness of the bent portion; the length of the intermediate gap is generally 2 to 4 times the wall thickness of the bent portion.

[0026] To further optimize the working efficiency of this application and ensure that the adhesive-blocking structure has sufficient elasticity and low cost, the adhesive-blocking structure of the plastic bracket 9 is made of engineering plastic. To improve battery safety, an explosion-proof valve 15 is installed on the surface of the lower housing 2. To ensure sufficient stability of the copper busbar 8, the copper busbar 8 is fixed to the lower housing 2 by the electrode base 12. The copper busbar 8 is externally wrapped with an insulating layer.

[0027] To use, simply install the multi-functional busbar bracket and connect the corresponding line equipment.

[0028] In summary, the multifunctional busbar bracket of this utility model replaces the adhesive-blocking foam 10 with an upper baffle 91 and a lower baffle 93 installed on the top of the plastic bracket 9, integrating the adhesive-blocking function of the adhesive-blocking foam 10 into the plastic bracket 9. The portion of the plastic bracket 9 that overlaps the top of the battery cell is made into an open structure and has compressibility. After the plastic bracket 9 is installed, the upper baffle 91 and the lower baffle 93 unfold to form an adhesive-blocking wall. When pressing the cold plate after applying adhesive, they can block the adhesive and ensure the thickness of the adhesive, acting as a height limiter. This reduces the number of parts, thereby reducing costs; and it also reduces assembly time, effectively compressing costs.

[0029] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A multifunctional busbar bracket, comprising an upper housing (1) and a lower housing (2), wherein multiple battery cells (19) are arranged laterally inside the lower housing (2), and two sets of copper busbars (8) are respectively connected to the positive and negative terminals of the battery cells (19). The ends of the two sets of copper busbars (8) are connected to a low-voltage socket (16), an MSD (17), and a high-voltage junction box (18) fixedly installed outside the lower housing (2), characterized in that, Multiple battery cells (19) are connected to each other by plastic brackets (9) fixedly installed on the end face. Copper busbars (8) are fixed on plastic brackets (9) by copper busbar fasteners (7). Protective covers (6) are fixed on plastic brackets (9) by aluminum plate brackets (5). The upper part of the plastic brackets (9) is provided with a baffle structure that bends towards the battery cell (19). The baffle structure includes a V-shaped structure composed of an upper baffle (91) and a lower baffle (93), and a buffer gap (92) between the upper baffle (91) and the lower baffle (93). Thermally conductive adhesive (11) covers the battery cell (19) and is blocked by the baffle structure. A water-cooling plate (3) is installed on the thermally conductive adhesive (11) by rivets (4). The water-cooling plate (3) is connected to a water nozzle (14) set on the lower housing (2) by a water pipe (13). The upper housing (1) closes the lower housing (2).

2. The multifunctional bus support of claim 1, wherein The adhesive-blocking structure of the plastic bracket (9) is made of engineering plastic.

3. The multifunction bus support of claim 2, wherein An explosion-proof valve (15) is installed on the surface of the lower housing (2).

4. The multi-functional busbar support of claim 1, wherein The copper busbar (8) is fixed to the lower housing (2) by the pole base (12).

5. The multi-functional busbar support of claim 4, wherein The copper busbar (8) is wrapped with an insulating layer.

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