Flat plate type busbar

Abstract

The utility model discloses a flat plate type bus bar, which relates to the technical field of battery packs, and comprises an upper insulation layer, a series connection aluminum bar plate and a lower insulation layer, the series connection aluminum bar plate is fixedly installed at the bottom of the upper insulation layer, the lower insulation layer is fixedly installed at the bottom of the series connection aluminum bar plate, and the series connection aluminum bar plate is composed of trapezoidal structure units. A gap of 1 mm is arranged between every two adjacent trapezoidal structure units, and the overall thickness of the series aluminum row plate is set to be 1 mm. According to the flat plate type bus bar, the series aluminum bar plate is arranged to be formed by laying a plurality of trapezoidal structure units in a plane mode, so that the flat plate type bus bar is more convenient to manufacture and lower in cost, discharging can be completed only through one set of module, compared with a traditional aluminum bar, the bending procedure is omitted, the production efficiency is greatly improved, the series aluminum bar plate adopts the trapezoidal structure of 1 mm, and the production cost is reduced. And the reliability of laser welding is better, the vibration can be better absorbed, and the welding of the battery cell and the aluminum row is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery packs, and in particular relates to a flat busbar. Background Art

[0002] A battery is a device that converts chemical energy directly into electrical energy. It is a rechargeable battery designed to be recharged through a reversible chemical reaction. It usually refers to a lead-acid battery, which is a type of battery and a secondary battery. Its working principle is: when charging, it uses external electrical energy to regenerate internal active substances and store electrical energy as chemical energy. When it needs to be discharged, the chemical energy is converted into electrical energy again for output, such as the mobile phone batteries commonly used in life. The structure of the battery consists of a casing, a top cover, plates, partitions, bus bars, poles, bridge protection boards, terminals and other components.

[0003] The main components of the existing busbars are generally bent aluminum bars, which have a complex structure and high cost. Two sets of modules are required during production. In addition, the aluminum bars are thick and heavy, which is not conducive to laser welding and has poor vibration absorption effect. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the main component of the existing busbar is generally a bent aluminum busbar, which has a complex structure and a high cost.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a flat busbar, including an upper insulation layer, a series aluminum busbar and a lower insulation layer, the series aluminum busbar is fixedly installed at the bottom of the upper insulation layer, the lower insulation layer is fixedly installed at the bottom of the series aluminum busbar, the series aluminum busbar is composed of trapezoidal structural units, and a 1mm gap is set between adjacent trapezoidal structural units, and the overall thickness of the series aluminum busbar is set to 1mm.

[0006] As a preferred embodiment of the present invention, a stress groove is provided at one end of the trapezoidal structural unit, and the stress groove is rectangular.

[0007] As a preferred embodiment of the present invention, a plurality of positioning grooves are provided on the top of the trapezoidal structural unit, and the positioning grooves are circular.

[0008] As a preferred embodiment of the utility model, two rows of alignment holes are opened on the top of the upper insulation layer and the lower insulation layer, the diameter of the alignment holes is 4 mm, and the diameter of the positioning groove is 1 mm.

[0009] As a preferred embodiment of the present invention, two FPC boards are fixedly installed on the top of the upper insulating layer, the two FPC boards are arranged in parallel, and welding pads are fixedly connected to both sides of the FPC boards.

[0010] As a preferred embodiment of the present invention, a connecting hole is provided in the middle portion of the two rows of alignment holes.

[0011] As a preferred embodiment of the present invention, the welding plate is connected to the series aluminum row plate through a connecting hole, and an end portion is provided at the left end of the FPC board.

[0012] The beneficial effects of the utility model are:

[0013] 1. This flat busbar makes the production more convenient and cost-effective by arranging the series aluminum busbar to be laid flat by a plurality of trapezoidal structural units. Only one set of modules is needed to complete the discharging. Compared with the traditional aluminum busbar, the bending process is omitted, which greatly improves the production efficiency. The series aluminum busbar adopts a 1mm trapezoidal structure, which makes it thinner and lighter, has better reliability of laser welding, can better absorb vibration, and is more convenient for welding the battery cell and the aluminum busbar.

[0014] 2. This flat busbar can be used to relieve stress concentration, improve the bending performance and tensile strength of the material through the setting of stress grooves, and can also reduce the impact of external stress on the series aluminum busbar, extend its service life, and improve the stability and reliability of the overall structure. Through the setting of the FPC board, the signal transmission between different components or devices can be connected. Through the setting of the welding plate, it can be connected to the series aluminum busbar to play a role of fixing and conducting, which can ensure a stable and reliable connection, while simplifying the overall circuit layout structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the utility model;

[0016] Figure 2 It is an exploded view of the overall structure provided by the embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the series-connected aluminum plate array provided by the embodiment of the utility model;

[0018] Figure 4 It is a schematic diagram of the upper insulation structure provided by an embodiment of the utility model;

[0019] Figure 5 It is a schematic diagram of the FPC board structure provided by an embodiment of the utility model.

[0020] Explanation of the markings in the figure: 1. Upper insulation; 2. Series aluminum row plate; 201. Trapezoidal structural unit; 202. Stress groove; 203. Positioning groove; 3. Lower insulation; 4. FPC board; 5. Alignment hole; 6. Welding pad; 7. Connection hole; 8. End. DETAILED DESCRIPTION

[0021] The present invention will now be further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0022] like Figures 1 to 5 As shown, the utility model provides a flat busbar, comprising an upper insulation layer 1, a series aluminum plate 2 and a lower insulation layer 3, wherein the series aluminum plate 2 is fixedly mounted at the bottom of the upper insulation layer 1, and the lower insulation layer 3 is fixedly mounted at the bottom of the series aluminum plate 2, the series aluminum plate 2 is composed of trapezoidal structural units 201, and a 1mm gap is set between adjacent trapezoidal structural units 201, and the overall thickness of the series aluminum plate 2 is set to 1mm.

[0023] refer to Figure 2 , Figure 3 and Figure 4 A stress groove 202 is provided at one end of the trapezoidal structural unit 201, and the stress groove 202 is rectangular. A plurality of positioning grooves 203 are provided at the top of the trapezoidal structural unit 201, and the positioning grooves 203 are circular. Two rows of alignment holes 5 are provided at the top of the upper insulation 1 and the lower insulation 3, and the diameter of the alignment holes 5 is 4 mm, and the diameter of the positioning grooves 203 is 1 mm.

[0024] The above scheme is adopted: by setting the stress groove 202, it can be used to relieve stress concentration, improve the bending performance and tensile strength of the material, reduce the influence of external stress on the series aluminum plate 2, extend its service life, and improve the stability and reliability of the overall structure.

[0025] refer to Figure 2 , Figure 4 and Figure 5 Two FPC boards 4 are fixedly installed on the top of the upper insulation 1. The two FPC boards 4 are arranged in parallel. Welding pads 6 are fixedly connected on both sides of the FPC board 4. A connecting hole 7 is opened in the middle of the two rows of alignment holes 5. The welding pad 6 is connected to the series aluminum row plate 2 through the connecting hole 7. An end portion 8 is provided at the left end of the FPC board 4.

[0026] The above scheme is adopted: through the setting of the FPC board 4, the signal transmission between different components or devices can be connected, and through the setting of the welding plate 6, it can be connected to the series aluminum row plate 2 to play a role of fixing and conducting, which can ensure that the connection is stable and reliable, and at the same time simplify the layout structure of the overall circuit.

[0027] Working principle:

[0028] When in use, first, lay the lower insulation 3 flat, then lay the series aluminum busbar 2 flat on the top of the lower insulation 3, and align the positioning grooves 203 with the alignment holes 5 of the lower insulation 3 one by one, then place the upper insulation 1 on the series aluminum busbar 2, and finally weld two rows of FPC boards 4 to the top of the upper insulation 1, and the welding pads 6 of the FPC boards 4 are connected to the series aluminum busbar 2 below through the alignment holes 5 on the upper insulation 1, and finally assembled into a complete flat busbar, and then connected to the required components through the ends 8 of the FPC boards 4.

[0029] In summary: this flat bus, through the coordinated use of the upper insulation 1, the series aluminum busbar 2, the lower insulation 3 and the FPC board 4, solves the problems that the main components of the existing bus are generally bent aluminum busbars, the bent aluminum busbars have a complex structure and high cost, two sets of modules are required during production, and the aluminum busbars are thick and heavy, which is not conducive to laser welding and has poor vibration absorption effect.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device;

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents;

[0032] The above description only describes the specific implementation methods of the utility model. Various examples do not limit the essential content of the utility model. Ordinary technicians in the relevant technical field can modify or deform the specific implementation methods described above after reading the description without departing from the essence and scope of the utility model.

Claims

1. A flat busbar, comprising an upper insulating layer (1), a series-connected aluminum busbar (2) and a lower insulating layer (3), characterized in that: The series-connected aluminum plate (2) is fixedly mounted on the bottom of the upper insulation layer (1), and the lower insulation layer (3) is fixedly mounted on the bottom of the series-connected aluminum plate (2). The series-connected aluminum plate (2) is composed of trapezoidal structural units (201), and a 1 mm gap is set between adjacent trapezoidal structural units (201). The overall thickness of the series-connected aluminum plate (2) is set to 1 mm.

2. A flat busbar according to claim 1, characterized in that: A stress groove (202) is provided at one end of the trapezoidal structural unit (201), and the stress groove (202) is rectangular.

3. The flat busbar according to claim 1, characterized in that: A plurality of positioning grooves (203) are provided on the top of the trapezoidal structural unit (201), and the positioning grooves (203) are circular.

4. A flat busbar according to claim 3, characterized in that: Two rows of alignment holes (5) are provided on the top of the upper insulation layer (1) and the lower insulation layer (3), the diameter of the alignment holes (5) is 4 mm, and the diameter of the positioning groove (203) is 1 mm.

5. The flat-plate busbar according to claim 1, characterized in that: Two FPC boards (4) are fixedly mounted on the top of the upper insulation layer (1), the two FPC boards (4) are arranged in parallel, and welding pads (6) are fixedly connected to both sides of the FPC boards (4).

6. A flat-plate busbar according to claim 4, characterized in that: A connecting hole (7) is provided in the middle of the two rows of alignment holes (5).

7. The flat-plate busbar according to claim 5, characterized in that: The welding plate (6) is connected to the series-connected aluminum row plate (2) via a connecting hole (7), and an end portion (8) is provided at the left end of the FPC board (4).

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