Integrated busbar of new energy battery pack

Abstract

The utility model discloses an integrated busbar of a new energy battery pack, which comprises a hard PCB substrate, two ends of the hard PCB substrate are respectively provided with an input conducting strip and an output conducting strip, the hard PCB substrate is provided with a plurality of conducting copper bars corresponding to the positions of batteries, and the conducting copper bars are connected with the input conducting strip and the output conducting strip. The side parts of the input conducting strip, the output conducting strip and the conducting copper bar are provided with edge folding parts, the end parts of the edge folding parts are provided with inserting plates extending downwards, the hard PCB substrate is provided with inserting grooves for the inserting plates to penetrate through, the inserting grooves are filled with tin soldering parts covering and wrapping the inserting plates, and the tin soldering parts are arranged on the hard PCB substrate. The conductive copper bar, the input conductive sheet and the output conductive sheet are connected in series through a hard PCB substrate. According to the utility model, the problems of insufficient overall strength and relatively high assembly cost of the existing integrated busbar can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy battery packs, in particular to an integrated busbar of a new energy battery pack. Background Art

[0002] At present, integrated busbars are installed at the conductive ends of conventional new energy battery packs. The existing integrated busbars include conductive aluminum busbars, FPC components and plastic wiring harness isolation plates, in which the conductive aluminum busbars and FPC components are both arranged on the plastic wiring harness isolation plates. The plastic wiring harness isolation plates have complex structures, long mold preparation cycles, high costs, insufficient overall strength, and insufficient extrusion resistance. Assembling the three components together requires a variety of tooling and laser welding, and the overall cost is relatively high. Utility Model Content

[0003] The utility model provides an integrated busbar of a new energy battery pack, which can solve the problems of insufficient overall strength and relatively high assembly cost of the existing integrated busbar.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated busbar of a new energy battery pack, comprising a hard PCB substrate, wherein both ends of the hard PCB substrate are respectively provided with an input conductive sheet and an output conductive sheet, a plurality of conductive copper bars corresponding to the battery positions are provided on the hard PCB substrate, the sides of the input conductive sheet, the output conductive sheet and the conductive copper bar are provided with folded edges, the ends of the folded edges are provided with plug-ins extending downwardly, a slot for the plug-in board to be inserted is provided on the hard PCB substrate, the slot is filled with a soldering portion covering and wrapping the plug-in board, the conductive copper bar, the input conductive sheet and the output conductive sheet are conductively connected in series through the hard PCB substrate, the hard PCB substrate can firmly connect and fix the input conductive sheet, the output conductive sheet and the conductive copper bar to improve the overall strength, the conductive copper bar and the hard PCB substrate are connected by soldering, the connection is reliable, the efficiency is high and the cost is low.

[0005] Preferably, at least one side of the conductive copper busbar is provided with a wing portion, and a hollow portion is provided on the hard PCB substrate at a position corresponding to the wing portion, and the wing portion can be deformed when in contact with the battery, thereby ensuring conductive contact with the battery.

[0006] Preferably, the side wall of the slot is inclined, and the opening width of one end of the slot away from the conductive copper bar is larger than the opening width of the other end, so that the slot can be fully filled with the soldering part to improve the bonding strength between the plug board and the slot.

[0007] Preferably, a hollow portion is provided on the rigid PCB substrate at a position corresponding to the input conductive sheet and the output conductive sheet, and the hollow portion can improve the strength of the rigid PCB substrate, and the input conductive sheet and the output conductive sheet can be deformed when conducting electricity.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] The structure is simple. The hard PCB substrate can firmly connect and fix the input conductive sheet, the output conductive sheet and the conductive copper busbar to improve the overall strength. The conductive copper busbar and the hard PCB substrate are connected by soldering, and the connection is reliable. There is no need to install a laser lamp, and the assembly efficiency is high and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0011] Figure 2 This is the main structural diagram of the utility model;

[0012] Figure 3 for Figure 2 AA section structure diagram;

[0013] Figure 4 for Figure 3 Enlarged structural diagram at point A. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0015] like Figure 1-4 As shown, the utility model provides an integrated busbar of a new energy battery pack, comprising a hard PCB substrate 1, wherein both ends of the hard PCB substrate 1 are respectively provided with an input conductive sheet 4 and an output conductive sheet 3, wherein the hard PCB substrate 1 is provided with a plurality of conductive copper bars 2 corresponding to the battery positions, wherein the sides of the input conductive sheet 4, the output conductive sheet 3 and the conductive copper bar 2 are provided with a folded edge portion 23, wherein the end of the folded edge portion 23 is provided with a plug-in plate 24 extending downwardly, wherein the hard PCB substrate 1 is provided with a slot 12 for the plug-in plate 24 to be inserted, wherein the slot 12 is filled with a soldering portion 5 covering and wrapping the plug-in plate 24, wherein the conductive copper bar 2, the input conductive sheet 4 and the output conductive sheet 3 are conductively connected in series through the hard PCB substrate 1, wherein the hard PCB substrate 1 can firmly connect and fix the input conductive sheet 4, the output conductive sheet 3 and the conductive copper bar 2 to improve the overall strength, wherein the conductive copper bar 2 and the hard PCB substrate 1 are connected through soldering, and the connection is reliable, efficient and low in cost.

[0016] Specifically, conductive wires are arranged on the hard PCB substrate 1, and the conductive wires are connected to each slot 12, so that the conductive copper bus 2, the input conductive sheet 4 and the output conductive sheet 3 are connected in series. When soldering, the conductive copper bus 2, the input conductive sheet 4 and the output conductive sheet 3 can be positioned on the tooling and the hard PCB substrate 1, and then the slots 12 are soldered one by one. After welding and fixing, the assembly of the entire integrated busbar is completed.

[0017] In this embodiment, a wing portion 21 is provided on at least one side of the conductive copper busbar 2, and a hollow portion 22 is provided on the hard PCB substrate 1 at a position corresponding to the wing portion 21. The wing portion 21 can be deformed when in contact with the battery, thereby ensuring conductive contact with the battery.

[0018] In this embodiment, the side wall of the slot 12 is inclined, and the opening width of the slot 12 at one end away from the conductive copper bus 2 is larger than the opening width of the other end. The slot 12 can be fully filled with the soldering portion 5 to improve the bonding strength between the plug board 24 and the slot 12.

[0019] A hollow portion 22 is provided on the rigid PCB substrate 1 at a position corresponding to the input conductive sheet 4 and the output conductive sheet 3. The hollow portion 22 can improve the strength of the rigid PCB substrate 1, and the input conductive sheet 4 and the output conductive sheet 3 can be deformed when conducting electricity.

[0020] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. An integrated busbar of a new energy battery pack, characterized in that: include: A hard PCB substrate (1), wherein an input conductive sheet (4) and an output conductive sheet (3) are respectively arranged at both ends of the hard PCB substrate (1), a plurality of conductive copper bars (2) corresponding to battery positions are arranged on the hard PCB substrate (1), folded edges (23) are arranged on the sides of the input conductive sheet (4), the output conductive sheet (3) and the conductive copper bars (2), and an insert plate (24) extending downward is arranged at the end of the folded edge (23), a slot (12) for the insert plate (24) to be inserted is arranged on the hard PCB substrate (1), the slot (12) is filled with a soldering portion (5) covering and wrapping the insert plate (24), and the conductive copper bars (2), the input conductive sheet (4) and the output conductive sheet (3) are electrically connected in series via the hard PCB substrate (1).

2. The integrated busbar of the new energy battery pack according to claim 1 is characterized in that: At least one side of the conductive copper busbar (2) is provided with a wing portion (21), and a hollow portion (22) is provided on the hard PCB substrate (1) at a position corresponding to the wing portion (21).

3. The integrated busbar of the new energy battery pack according to claim 1 is characterized in that: The side wall of the slot (12) is inclined, and the opening width of one end of the slot (12) away from the conductive copper bar (2) is greater than the opening width of the other end.

4. The integrated busbar of the new energy battery pack according to claim 1 is characterized in that: A hollow portion (22) is provided on the hard PCB substrate (1) at a position corresponding to the input conductive sheet (4) and the output conductive sheet (3).

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