Collection wire and chip fixing device, battery module integrated busbar and battery module

Abstract

The utility model belongs to the technical field of battery acquisition components, and particularly provides an acquisition lead and chip fixing device, which comprises a support plate and a plurality of lead fixing parts, and the plurality of lead fixing parts are mounted on the support plate along the routing path of an acquisition lead; a chip groove is formed in the supporting plate; the edge of the bar piece groove is provided with a buckle used for clamping the bar piece. The bottom of the chip groove is provided with an elastic sheet, and the elastic sheet protrudes out of the bottom surface of the chip groove. The fixing device adopts a special structural design, the fixing effect on the chip is good, and the chip is prevented from falling off due to extrusion; the supporting plate is further provided with a wire fixing piece installed along the routing path of the collection wire, wire harnesses are protected and fixed, damage caused by wire leakage and extrusion is prevented, the supporting plate is provided with a wire locking structure, and the subsequent tedious steps of wire locking in other modes are avoided. Based on the fixing device, the utility model also provides a battery module integrated busbar and a battery module.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery collection components, and specifically relates to a collection conductor and a bar fixing device, a battery module integrated busbar and a battery module. Background Art

[0002] A battery pack is generally composed of multiple battery modules, each of which corresponds to a battery module integrated busbar (CCS). The battery module integrated busbar is mainly used to collect parameter information such as temperature, voltage, and current of each battery cell in the battery module. Therefore, the layout and protection of the collection harness of the battery module integrated busbar are particularly important for the reliability of the parameter information collection of the battery pack.

[0003] At present, CCS components on the market generally use PC film cutting technology, which is light in weight, but the wiring harness cannot be fixed by the PC mold and needs to be fixed with cable ties or other methods. The secondary fixation cost is high, the production operation is cumbersome, and the protection of the wiring harness is poor, which is easy to cause damage. There are two common ways to fix the busbars integrated into the battery module: 1. Glue the busbars to the PC die-cut board; 2. Install the busbars into the grooves of the PC film vacuum forming and fix them with hot rivets. These two methods have the advantage of light weight, but the supporting strength is poor. Extrusion during transportation or turnover can easily cause damage to the wiring harness or the busbars to fall out. Utility Model Content

[0004] The utility model aims to overcome the problems in the prior art that the busbar and the wiring harness have poor fixing effects and are easily dislodged when squeezed.

[0005] To this end, the utility model provides a collection wire and a bar fixing device, including a support plate and a plurality of wire fixings, wherein the plurality of wire fixings are installed on the support plate along the routing path of the collection wire; a bar slot is provided on the support plate; a buckle for clamping the bar is provided at the edge of the bar slot; a spring sheet is provided at the bottom of the bar slot, and the spring sheet protrudes from the bottom surface of the bar slot.

[0006] Specifically, the wire fixing member is an L-shaped fastener; one end of the L-shaped fastener is fixed to the support plate, and a space for fixing the collection wire is formed between the other end and the support plate.

[0007] Specifically, the support plate is provided with a wire locking structure; a wire entry port for the bar piece is opened on the side of the bar piece groove; and the wire locking structure is arranged at a position corresponding to the wire entry port for the bar piece.

[0008] Specifically, a plurality of weight-reducing holes are provided on the support plate.

[0009] Specifically, the support plate is an injection molded support plate.

[0010] The utility model also provides a battery module integrated busbar, comprising: a bar, a collection wire and a device for fixing the collection wire and the bar; the bar is fixedly installed in the bar slot; the collection wire is installed on the support plate through the wire fixing piece; the collection wire is fixedly connected to the bar.

[0011] Specifically, a temperature sensor is provided at the input end of the acquisition wire, and the acquisition wire is fixedly connected to the bar through the temperature sensor.

[0012] Specifically, the temperature sensor is welded to the bar, and a sealing protective layer is provided at the welding point.

[0013] Specifically, a connector is provided at the output end of the acquisition wire.

[0014] The utility model also provides a battery module, comprising the above-mentioned battery module integrated busbar.

[0015] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0016] The collection wire and the bar fixing device provided by the utility model adopts a special structural design. The bar is clamped by the spring sheet set at the bottom of the bar slot and the buckle set at the notch to prevent it from falling out of the bar slot. At the same time, the spring sheet supports the bar to tighten the bar to avoid shaking and abnormal noise. The fixing effect of the bar is better to prevent it from falling off due to squeezing. The support plate is also designed with a wire fixing installed along the routing path of the collection wire to protect and fix the wire harness to prevent the wire from leaking out and being squeezed. The built-in wire locking structure avoids the tedious steps of locking the wire in other ways. In addition, the utility model performs a hollow weight reduction design while meeting the existing functions and not affecting the strength of the product, so that the parts reach the planned weight comparable to that of the PC film, achieving lightweight and sufficient support strength, and also has a certain protective effect on the battery pack itself.

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a collection conductor and a bar fixing device provided by the utility model.

[0019] Figure 2 yes Figure 1 A magnified image of area A.

[0020] Figure 3 yes Figure 1 Enlarged view of area B.

[0021] Figure 4 It is an exploded view of the battery module integrated busbar provided by the utility model.

[0022] Figure 5 It is a structural schematic diagram of a battery module integrated busbar provided by the utility model.

[0023] Figure 6 yes Figure 5 A magnified image of area A.

[0024] Figure 7 This is a front view of the battery module integrated busbar provided by the utility model.

[0025] Figure 8 It is a rear view of the battery module integrated busbar provided by the utility model.

[0026] Explanation of the reference numerals: 1. Support plate; 2. Plate slot; 3. Buckle; 4. Spring piece; 5. Wire fixing piece; 6. Wire locking structure; 7. Weight reduction hole; 8. Plate; 9. Collection wire; 10. Temperature sensor; 11. Connector. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] Reference Figure 1-3The utility model provides a collection wire and bar fixing device, comprising a support plate 1 and a plurality of wire fixing members 5, the support plate 1 is preferably an injection molded support plate 1; the plurality of wire fixing members 5 are installed on the support plate 1 along the routing path of the collection wire 9; a bar slot 2 is provided on the support plate 1; a buckle 3 for clamping a bar 8 is provided at the edge of the bar slot 2, the buckle 3 faces the direction of the bar slot 2, and applies a downward force to the bar 8, so as to press the bar 8 into the bar slot 2; a spring sheet 4 is provided at the bottom of the bar slot 2, and the spring sheet 4 protrudes from the bottom surface of the bar slot 2, when the bar 8 is buckled into the bar slot 2, the spring sheet 4 is pressed down, providing an upward force for the bar 8; the number and position of the buckle 3 and the spring sheet 4 are designed according to the size of the bar slot 2, generally 3-4 per slot, to prevent the bar 8 from falling off and shaking; a space for fixing the bar 8 is formed between the spring sheet 4 and the buckle 3. The number and position of the bar slot 2 and the wire fixing member 5 are designed according to actual needs. In actual use, the buckle 3 is used to snap the bar 8 into the bar slot 2, and the interference fit of the spring piece 4 at the bottom of the bar slot 2 is used to press the bar 8 into the bar slot 2 to avoid shaking and abnormal noise. The wire fixing member 5 fixes the collection wire 9 on the support plate 1 along the routing path of the collection wire 9 to guide and protect the wire harness.

[0030] Specifically, the wire fixing member 5 is an L-shaped fastener; one end of the L-shaped fastener is fixed to the support plate 1, and the other end forms a space for fixing the collection wire 9 between the plate surface of the support plate 1, which has the function of fixing the wire while guiding it.

[0031] Furthermore, a wire locking structure 6 is provided on the support plate 1; a wire entry port is provided on the side of the bar slot 2; and the wire locking structure 6 is arranged at a position corresponding to the wire entry port. The wire connected to the bar 8 is fixed by the wire locking structure 6, avoiding the tedious steps of locking the wire in other ways later. The position and number of the wire locking structure 6 are designed according to actual needs, and can be used not only to fix the branch wires, but also to fix the wire bundles.

[0032] In order to make the parts reach the planned weight comparable to that of PC film, the collection wire and the bar fixing device adopt a hollow weight reduction design, and a plurality of hollow weight reduction holes 7 are opened on the support plate 1. Under the condition of meeting the existing functions and not affecting the strength of the product, the weight reduction holes 7 can be set at the bottom of the bar slot 2, or at the free position of the support plate 1. The specific size and position are designed according to actual needs to achieve lightweight and sufficient support strength.

[0033] In an optimized embodiment, the utility model also provides a battery module integrated busbar, including: a bar 8, a collection wire 9, and the above-mentioned collection wire and bar fixing device; the bar 8 is fixedly installed in the bar slot 2; the collection wire 9 is installed on the support plate 1 through the wire fixing member 5; the collection wire 9 is fixedly connected to the bar 8. When in use, first insert the bar 8 into the bar slot 2 of the support plate 1. The bar 8 includes positive and negative bar 8, and the bar 8 is connected in series. There is a corner chamfer structure in the four corners of the bar. One corner of the bar slot 2 is designed as an anti-error structure that matches the chamfer of the bar, and each bar 8 has a unique installation method. After the bar 8 is assembled, the wiring harness assembly of the collection wire 9 is assembled one by one through the wire fixing member 5 on the support plate 1.

[0034] A temperature sensor 10 is provided at the input end of the collection wire 9. After the collection wire 9 and the bar 8 are installed, the end of the collection wire 9 and the NTC temperature sensor 10 are welded to the bar 8 by welding. A sealing protective layer is provided at the welding point, preferably with silicone or resin sealing protection.

[0035] Furthermore, a connector 11 is provided at the output end of the acquisition wire 9. The line connector 11 adopts a swing-wire design. The connector 11 is directly plugged into the controller to reduce intermediate transition links.

[0036] The battery module integrated busbar provided by the utility model can be used in the battery module to collect various parameter information in the battery module.

[0037] In summary, the collection wire and bar fixing device provided by the utility model adopts a special structural design. The spring piece 4 set at the bottom of the bar slot 2 cooperates with the buckle 3 set at the slot to clamp the bar 8 to prevent it from falling out of the bar slot 2. The spring piece 4 supports the bar 8 to tighten the bar 8 to avoid shaking and abnormal noise. The fixing effect of the bar 8 is better to avoid falling off due to squeezing. The support plate 1 is also designed with a wire fixing part 5 installed along the routing path of the collection wire 9 to protect and fix the wire harness to prevent the wire from leaking out and being squeezed. The device also has a wire locking structure 6 to avoid the tedious steps of locking the wire in other ways. In addition, the utility model uses a hollow weight reduction design while meeting the existing functions and not affecting the strength of the product, so that the parts reach the planned weight comparable to that of the PC film, achieving lightweight and sufficient support strength, and also has a certain protective effect on the battery pack itself.

[0038] The above examples are merely illustrative of the present invention and do not constitute a limitation on the protection scope of the present invention. All designs that are identical or similar to the present invention fall within the protection scope of the present invention.

Claims

1. A collecting wire and a bar fixing device, comprising a support plate (1) and a plurality of wire fixing members (5), characterized in that: A plurality of the wire fixing members (5) are installed on the support plate (1) along the routing path of the collection wire (9); a flap groove (2) is provided on the support plate (1); a buckle (3) for snapping on the flap (8) is provided at the edge of the flap groove (2); a spring sheet (4) is provided at the bottom of the flap groove (2), and the spring sheet (4) protrudes from the bottom surface of the flap groove (2).

2. The collecting wire and the fixing device of the bar as claimed in claim 1, characterized in that: The wire fixing member (5) is an L-shaped fastener; one end of the L-shaped fastener is fixed to the support plate (1), and a space for fixing the collection wire (9) is formed between the other end and the support plate (1).

3. The collecting wire and the fixing device of the bar as claimed in claim 1, characterized in that: The support plate (1) is provided with a wire locking structure (6); a wire entry opening is provided on the side of the bar slot (2); and the wire locking structure (6) is arranged at a position corresponding to the bar entry opening.

4. The collecting wire and the fixing device of the bar as claimed in claim 1, characterized in that: The support plate (1) is provided with a plurality of weight-reducing holes (7).

5. The collecting wire and the fixing device of the bar as claimed in claim 1, characterized in that: The support plate (1) is an injection-molded support plate.

6. A battery module integrated busbar, characterized in that: include: A bar (8), a collection wire (9), and a collection wire and bar fixing device as described in any one of claims 1 to 5; the bar (8) is fixedly installed in the bar slot (2); the collection wire (9) is installed on the support plate (1) through the wire fixing member (5); the collection wire (9) is fixedly connected to the bar (8).

7. The battery module integrated busbar as claimed in claim 6, characterized in that: The input end of the acquisition wire (9) is provided with a temperature sensor (10), and the acquisition wire (9) is fixedly connected to the bar (8) via the temperature sensor (10).

8. The battery module integrated busbar as claimed in claim 7, characterized in that: The temperature sensor (10) is welded to the bar sheet (8), and a sealing protective layer is provided at the welding point.

9. The battery module integrated busbar as claimed in claim 6, characterized in that: The output end of the collection wire (9) is provided with a connector (11).

10. A battery module, characterized in that: Comprising a battery module integrated busbar as described in any one of claims 6-9.

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