Wiring harness integrated busbar structure with fuses and battery pack

Abstract

The utility model discloses a wire harness integrated busbar structure with fuses and a battery pack. The wire harness integrated busbar structure with fuses comprises an integrated busbar 1 and a plurality of aluminum bars 2 connected with the integrated busbar 1, the aluminum bars 2 are connected with the fuses 3, and the fuses 3 are connected with a wire harness 4. Wherein the edge of the aluminum bar 2 is provided with a vacant part 21, and the fuse 3 is arranged at the vacant part 21. And a plurality of fixing holes 22 are formed in the aluminum bar 2. The pin of the fuse 3 is in a copper wire tube shape or a sheet shape. The beneficial effects of the utility model lie in that the wire harness CCS product has a fuse fusing function, and the thermal runaway of the electrical core can be effectively monitored.

Description

Technical Field

[0001] The utility model relates to the technical field of electronics, and in particular to a wiring harness integrated busbar structure with a fuse and a battery pack. Background Art

[0002] New energy vehicles currently rely on battery packs for power. However, in the manufacturing industry for the cell contact system (CCS) used in new energy battery packs, the CCS, which uses wiring harnesses as a transmission medium, cannot be equipped with fuses and therefore lacks a fuse-breaking function. If a fuse is required in the CCS, the expensive flexible printed circuit (FPC) is used as the transmission medium.

[0003] Therefore, there is an urgent need to develop a low-cost, fuse-equipped wiring harness integrated busbar structure and battery pack with a fusing function. Utility Model Content

[0004] The present invention aims to solve at least one of the above technical problems to a certain extent.

[0005] Therefore, the first object of the present invention is to provide a wiring harness integrated busbar structure with a fuse, which has a fusing function and is low in cost.

[0006] The second objective of the present invention is to provide a battery pack.

[0007] To achieve the above-mentioned objectives, an embodiment of the present utility model discloses a wiring harness integrated busbar structure with a fuse, comprising: an integrated busbar 1, several aluminum bars 2 connected to the integrated busbar 1, fuses 3 connected to the aluminum bars 2, and the fuses 3 connected to the wiring harness 4; wherein, a vacant portion 21 is provided on the edge of the aluminum bar 2, and the fuse 3 is arranged in the vacant portion 21.

[0008] In addition, the wiring harness integrated busbar structure with fuse according to the above technical solution of the utility model may also have the following additional technical features:

[0009] Optionally, a plurality of fixing holes 22 are provided on the aluminum bar 2 .

[0010] Optionally, the pins of the fuse 3 are in the shape of copper wire tubes or sheets.

[0011] To achieve the above-mentioned purpose, a second embodiment of the present invention provides a battery pack, comprising a wiring harness integrated busbar structure with a fuse as described in the first embodiment of the present invention.

[0012] The beneficial effect of the utility model is that the wiring harness CCS product has a fuse blowing function, which can effectively monitor the thermal runaway of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of a wiring harness integrated busbar structure with a fuse provided by an embodiment of the present utility model;

[0014] Figure 2 This is a structural schematic diagram of a wiring harness integrated busbar structure with a fuse provided by another embodiment of the present utility model;

[0015] Figure 3 This is a schematic structural diagram of an aluminum bar provided by an embodiment of the present utility model;

[0016] Figure 4 This is a structural diagram of a fuse provided by an embodiment of the present utility model;

[0017] Figure 5 It is a structural diagram of a fuse provided by another embodiment of the present utility model.

[0018] Reference numerals:

[0019] 1-Integrated busbar; 2-Aluminum bar; 21-Vacant part, 22-Fixing hole, 3-Fuse; 4-Wiring harness. DETAILED DESCRIPTION

[0020] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or components / elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and are not to be construed as limiting the present invention.

[0021] Figure 1 This is a structural diagram of a wiring harness integrated busbar structure with a fuse provided by an embodiment of the present utility model; Figure 2 This is a structural schematic diagram of a wiring harness integrated busbar structure with a fuse provided by another embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of an aluminum bar provided by an embodiment of the present invention. Figure 1-3 As shown, the wiring harness integrated busbar structure with fuse includes: an integrated busbar 1, several aluminum bars 2 connected to the integrated busbar 1, the aluminum bars 2 are connected to fuses 3, and the fuses 3 are connected to the wiring harness 4; wherein, a vacant portion 21 is provided on the edge of the aluminum bar 2, and the fuse 3 is arranged at the vacant portion 21.

[0022] Specifically, installing a fuse on the CCS wiring harness is challenging. Simply welding the fuse between the aluminum bar and the wiring harness is clearly not feasible. This is due to limited battery pack space and insufficient fuse welding strength. In the solution of this application, a recess 21 is provided on the aluminum bar 2 to accommodate the fuse 3. This ensures that the original dimensions of the aluminum bar, i.e., the outer dimensions of the aluminum bar 2, are not altered. During processing, holes and grooves can be drilled and cut along the x- or y-direction of the aluminum bar 2 to create space for the fuse 3. This solves the problem of fuse space occupation.

[0023] According to the wiring harness integrated busbar structure with fuse of the utility model, the wiring harness CCS product has a fuse blowing function, which can effectively monitor the thermal runaway of the battery cell.

[0024] According to one embodiment of the present invention, a plurality of fixing holes 22 are provided on the aluminum bar 2 .

[0025] Specifically, fixing holes 22 are provided on the aluminum bar 2, which is then fixed to the integrated busbar 1 using screws or a hot riveting process, which is stable and reliable. Multiple fixing holes 22 can be arranged in a staggered manner to reduce the torque received when subjected to lateral stress.

[0026] The fuse and the aluminum bar 2 are welded by ultrasonic welding or laser welding, but the welding method is not limited to this method.

[0027] Fuses and wiring harnesses are welded by ultrasonic welding or soldering, but are not limited to these welding methods.

[0028] Figure 4 This is a structural diagram of a fuse provided by an embodiment of the present utility model; Figure 5 This is a schematic diagram of the structure of a fuse provided by another embodiment of the present invention. Figure 4-5 As shown, the pins of the fuse 3 are in the shape of copper wire tubes or sheets.

[0029] Specifically, sheet fuses are more convenient to use than traditional filament fuses. Copper wire tube fuses are relatively small and lightweight, and cause less damage to nearby equipment when they blow.

[0030] Based on the above embodiments, an embodiment of the present invention further proposes a battery pack, comprising: a wiring harness integrated busbar structure with a fuse as in the above embodiments.

[0031] According to the battery pack of the embodiment of the present invention, the wiring harness integrated busbar structure with a fuse enables the wiring harness CCS product to have a fuse blowing function, which can effectively monitor the thermal runaway of the battery cell.

[0032] The above embodiments are preferred implementation schemes of the present application. In addition, the present application can also be implemented in other ways. Any obvious replacement without departing from the concept of the present application is within the scope of protection of the present application.

Claims

1. A wiring harness integrated busbar structure with fuse, characterized in that: include: An integrated busbar (1), a plurality of aluminum bars (2) connected to the integrated busbar (1), a fuse (3) connected to the aluminum bar (2), and a wiring harness (4) connected to the fuse (3); The edge of the aluminum bar (2) is provided with a vacant portion (21), and the fuse (3) is arranged at the vacant portion (21).

2. The wiring harness integrated busbar structure with fuse according to claim 1, characterized in that: The aluminum bar (2) is provided with a plurality of fixing holes (22).

3. The wiring harness integrated busbar structure with fuse according to claim 1, characterized in that: The pins of the fuse (3) are in the shape of copper wire tubes or sheets.

4. A battery pack, characterized in that: The invention comprises a wiring harness integrated busbar structure with a fuse as described in any one of claims 1 to 3.

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