Busbar fixing structure applied to energy storage battery CCS assembly

Abstract

The utility model discloses a Busbar fixing structure applied to an energy storage battery CCS assembly. The Busbar fixing structure comprises an injection molding isolation plate and a busbar clamped on the injection molding isolation plate, two opening grooves with limiting plate bodies are formed in the same side of the injection molding isolation plate, and the opening grooves limit the busbars which are clamped in a matched mode in the X-axis direction; a staggered interval space is formed between the limiting plate body and the injection molding isolation plate up and down, and the staggered interval space limits the matched and clamped busbar in the Z-axis direction; the side wall of the opening groove extends outwards to form a clamping head, and the clamping head limits the busbar which is clamped in a matched mode in the Y-axis direction. The Busbar fixing method is efficient, accurate and high in cost benefit, the manufacturing quality and the production efficiency of the battery module are improved, meanwhile, the cost is reduced, and the requirements of the battery module industry for cost reduction and efficiency increase are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fixed structure especially to a fixed busbar structure applied to energy storage battery CCS assembly. BACKGROUND

[0002] CCS (Cells Contact System), namely battery connection system, is an advanced battery module connection technology, which not only realizes series-parallel connection between battery cells, but also integrates temperature and voltage sampling and other functions, greatly improving the performance monitoring capability of battery module.

[0003] In the battery module, Busbar (busbar) plays a crucial role, which is a metal strip used for series or parallel connection of battery cells, and undertakes the important task of current transmission. However, the traditional Busbar fixing method often faces the challenges of low efficiency and insufficient precision. In view of these problems, modern battery module production is increasingly using special designed double-sided adhesive fixing scheme, or using laser welding technology, whether using double-sided adhesive and or laser welding, both increase the processing cost and material cost while fixing the Busbar, and the installation time of the above Busbar is relatively long, such as the need to increase the pasting time of double-sided adhesive, such as the need for docking time of laser welding, which cannot meet the demand of cost reduction and efficiency increase of battery module. SUMMARY

[0004] In order to solve the above technical problems, the utility model provides a fixed busbar structure applied to energy storage battery CCS assembly.

[0005] In order to solve the above technical problems, the utility model adopts the technical scheme of: a fixed busbar structure applied to energy storage battery CCS assembly, comprising an injection molded isolation plate and a busbar clamped on the injection molded isolation plate.

[0006] Two open grooves with limiting plate bodies are provided on the same side of the injection molded isolation plate, and the open grooves form X-axis direction limiting for the matched and clamped busbar.

[0007] The upper and lower positions of the limiting plate body and the injection molded isolation plate form a staggered spacing space, which forms Z-axis direction limiting for the matched and clamped busbar.

[0008] The side wall of the open groove extends outward to form a clamping head, which forms Y-axis direction limiting for the matched and clamped busbar.

[0009] Further, the opening groove with the limiting plate body is a first opening groove and a second opening groove opened at the front side end of the injection molded isolation plate, both the first opening groove and the second opening groove are upward grooves opened on the injection molded isolation plate, and the top plate of the upward groove serves as the limiting plate body.

[0010] Further, both the first opening groove and the second opening groove form a plug-in port for busbar plug-in at the front side.

[0011] Further, a limiting groove is arranged between the two opening grooves, the limiting groove is formed between the side walls of the first opening groove and the second opening groove close to each other, and the busbar is clamped in the limiting groove at the same time.

[0012] Further, the clamping head comprises an elastic rocker arm extending forward from the side wall of the opening groove, the elastic rocker arm is connected with a limiting clamping convex, a limiting clamping groove matched with the limiting clamping convex is arranged on the end edge of the busbar, and the limiting clamping convex and the limiting clamping groove are clamped with each other when the busbar is clamped in the opening groove.

[0013] The application discloses a fixed Busbar structure applied to a CCS assembly of an energy storage battery, and has the following advantages:

[0014] The plug-in connection does not need to wait for the curing of double-sided adhesive or laser welding, significantly reduces the installation time, avoids the cost of materials and processes required by double-sided adhesive and laser welding, helps to reduce the overall production cost, the limiting design ensures the accurate installation of the Busbar, improves the consistency and performance of the battery module, the plug-in design makes the replacement and maintenance of the Busbar convenient and fast, and the design flexibility of the opening groove allows the adaptation to Busbars of different shapes, and increases the application range of the assembly. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the utility model embodiment one.

[0016] Figure 2 It is a structure schematic diagram of the injection molded isolation plate of the utility model embodiment one.

[0017] Figure 3 It is a top view of the utility model embodiment one.

[0018] Figure 4 It is a structure schematic diagram of the injection molded isolation plate of the utility model embodiment two.

[0019] In the drawing: 100, injection molded isolation plate; 110, opening groove; 110a, first opening groove; 110b, second opening groove; 111, limiting plate body; 120, clamping head; 121, elastic rocker arm; 122, limiting clamping convex; 130, limiting groove; 200, heat preservation cavity; 210, limiting clamping groove. DETAILED DESCRIPTION

[0020] The utility model will be explained further in detail below in combination with the drawings and specific embodiments.

[0021] Embodiment one;

[0022] Figures 1-3 As shown in a kind of fixed Busbar structure applied to energy storage battery CCS component, including injection moulding isolation plate 100 and the busbar 200 of joint in injection moulding isolation plate 100, form a kind of through plug-in to replace double-sided adhesive structure connection or laser welding connection mode, specific structure as follows:

[0023] Two opening grooves 110 with limit plate body 111 are set in the front side of injection moulding isolation plate 100, opening groove 110 is used for the plug-in of busbar 200, opening groove 110 adopts rectangular groove, in other embodiments, opening groove 110 can adopt other shapes that can realize the plug-in of busbar 200, such as trapezoidal groove or positive direction groove, specifically, two opening grooves 110 are respectively first opening groove 110a and second opening groove 110b set in the front side end of injection moulding isolation plate 100, in the embodiment, the structure size of first opening groove 110a and second opening groove 110b is identical, and both form plug-in interface for the plug-in of busbar 200 to front side, and the matched busbar 200 of joint forms limit along X axis direction.

[0024] It should be noted that first opening groove 110a and second opening groove 110b are both rising grooves set on injection moulding isolation plate 100, and the top plate of rising groove is as limit plate body 111, it should be understood that limit plate body 111 is higher than injection moulding isolation plate 100 due to the effect of rising groove, thus, limit plate body 111 and injection moulding isolation plate 100 form misaligned spacing space up and down, and this misaligned spacing space forms limit along Z axis direction to the matched busbar 200 of joint. Limit groove 130 is between two opening grooves 110, and limit groove 130 is formed between the side wall of first opening groove 110a and second opening groove 110b close to each other, and busbar 200 is simultaneously jointed in limit groove. In the example, misaligned spacing space is formed between the bottom plate of limit groove 130 and the top plate of opening groove 110, that is, the interval between injection moulding isolation plate 100 and limit plate body 111 up and down, injection moulding isolation plate 100 forms lower barrier to busbar 200, and limit plate body 111 forms upper barrier to busbar 200.

[0025] The side wall of the open slot 110 extends outwardly a clamping joint 120, the clamping joint 120 includes a resilient rocker arm 121 extending forwardly from the side wall of the open slot 110, a limiting clamping convex 122 is connected on the resilient rocker arm 121, a limiting clamping groove 210 matched with the limiting clamping convex 122 is arranged on the end edge of the busbar 200, when the busbar 200 is clamped in the open slot 110, the limiting clamping convex 122 and the limiting clamping groove 210 are clamped with each other. It should be noted that the resilient rocker arm 121 of the clamping joint 120 is located on the side wall of the distal end of the first open slot 110a and the second open slot 110b, respectively, so that the end edge of the busbar 200 can be clamped, and thus the clamping joint 120 limits the matched busbar 200 in the Y-axis direction.

[0026] Embodiment two;

[0027] Figure 4 A kind of fixed Busbar structure applied to energy storage battery CCS component is shown, including injection moulding isolation plate 100 and clamping busbar on injection moulding isolation plate 100, form a kind of through plug-in to replace double-sided adhesive structure connection or laser welding connection mode, specific structure is as follows:

[0028] Two open slots 110 with limiting plate body 111 are opened on the front side of injection moulding isolation plate 100, open slot 110 is used for the plug-in of busbar 200, open slot 110 adopts rectangular slot, in other embodiments, open slot 110 can adopt other shapes that can realize the plug-in of busbar 200, such as trapezoidal slot or positive direction slot, open slot 110 limits the matched busbar 200 in the X-axis direction.

[0029] It should be noted that open slot 110 is the rising slot opened on injection moulding isolation plate 100, the top plate of the rising slot is as limiting plate body 111, it should be understood that due to the effect of the rising slot, limiting plate body 111 is higher than injection moulding isolation plate 100, injection moulding isolation plate 100 forms the lower cover of open slot 110, thus, limiting plate body 111 and injection moulding isolation plate 100 form the dislocation interval space up and down, which limits the matched busbar 200 in the Z-axis direction.

[0030] Different from embodiment one, in the present example, the dislocation interval space is formed between the injection moulding isolation plate 100 below the open slot and the top plate of the open slot 110, that is, the interval between injection moulding isolation plate 100 and limiting plate body 111 up and down, injection moulding isolation plate 100 forms the lower barrier of busbar 200, and limiting plate body 111 forms the upper barrier of busbar 200.

[0031] A snap-fit ​​connector 120 extends outward from the sidewall of the opening slot 110. The snap-fit ​​connector 120 includes an elastic rocker arm 121 extending forward from the sidewall of the opening slot 110. A limiting snap protrusion 122 is connected to the elastic rocker arm 121. A limiting slot 210 matching the limiting snap protrusion 122 is provided on the end edge of the busbar 200. When the busbar 200 is snapped into the opening slot 110, the limiting snap protrusion 122 and the limiting slot 210 snap into each other. The snap-fit ​​connector 120 limits the matching busbar 200 in the Y-axis direction.

[0032] In summary, this patent effectively solves the problems of low busbar fixing efficiency, insufficient precision, high cost, and long installation time mentioned in the background art by designing a novel busbar fixing structure for CCS modules in energy storage batteries. The use of plug-in connections instead of traditional double-sided adhesive or laser welding simplifies the busbar installation process. An opening groove and a limiting groove with a limiting plate body are designed on the injection-molded separator plate, providing limiting in the X and Z axis directions for the busbar and ensuring precise fixing. The elastic rocker arm and limiting protrusion extending from the sidewall of the opening groove engage with the limiting groove on the busbar end edge, achieving limiting in the Y axis direction while ensuring connection reliability.

[0033] The following benefits exist:

[0034] The plug-in connection eliminates the need to wait for double-sided adhesive to cure or perform laser welding, significantly reducing installation time.

[0035] This avoids the costs of materials and processes required for double-sided tape and laser welding, helping to reduce overall production costs.

[0036] The limiting design ensures precise installation of the Busbar, improving the consistency and performance of the battery module.

[0037] The plug-in design makes busbar replacement and maintenance quick and easy.

[0038] The design flexibility of the slotted opening allows for adaptation to different busbar shapes, increasing the applicability of the component.

[0039] Overall, this patent provides an efficient, precise, and cost-effective method for fixing busbars, which helps improve the manufacturing quality and production efficiency of battery modules while reducing costs, meeting the battery module industry's demand for cost reduction and efficiency improvement.

[0040] The above embodiments are not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are also within the protection scope of the present utility model.

Claims

1. A fixed busbar structure applied to a CCS assembly of an energy storage battery, characterized in that: The utility model relates to a kind of injection-molded isolation plates (100) and busbar (200) of clamping on injection-molded isolation plate (100); Two open grooves (110) with limiting plate body (111) are opened on the same side of the injection-molded isolation plate (100), and the open grooves (110) form a limit along the X-axis direction for the matched clamped busbar (200); The limiting plate body (111) is misaligned with the upper and lower injection-molded isolation plate (100) to form a misaligned spacing, and the misaligned spacing forms a limit along the Z-axis direction for the matched clamped busbar (200); The side wall of the open groove (110) extends outward to form a clamping head (120), and the clamping head (120) forms a limit along the Y-axis direction for the matched clamped busbar (200).

2. The fixed busbar structure for use in a CCS assembly of an energy storage battery of claim 1, wherein: The open groove (110) with limiting plate body (111) is a first open groove (110a) and a second open groove (110b) opened at the front side end of the injection-molded isolation plate (100), and the first open groove (110a) and the second open groove (110b) are both upward grooves opened on the injection-molded isolation plate (100), and the top plate of the upward groove serves as the limiting plate body (111).

3. The fixed busbar structure for use in a CCS assembly of an energy storage battery of claim 2, wherein: The first open groove (110a) and the second open groove (110b) both form a plug-in port for the busbar (200) to plug in towards the front side.

4. The fixed busbar structure for use in a CCS assembly of an energy storage battery according to any one of claims 1 to 3, characterized in that: A limiting groove (130) is provided between the two open grooves (110), and the limiting groove (130) is formed between the side walls of the first open groove (110a) and the second open groove (110b) that are close to each other, and the busbar (200) is clamped in the limiting groove.

5. The fixed busbar structure for use in a CCS assembly of an energy storage battery of claim 4, wherein: The clamping head (120) includes an elastic rocker arm (121) extending forward from the side wall of the open groove (110), and a limiting clamping protrusion (122) is connected to the elastic rocker arm (121), and a limiting clamping groove (210) matching the limiting clamping protrusion (122) is provided on the end edge of the busbar (200), and when the busbar (200) is clamped in the open groove (110), the limiting clamping protrusion (122) and the limiting clamping groove (210) are clamped with each other.

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