CCS assembly and battery module

Abstract

The utility model provides a CCS assembly and a battery module. The CCS assembly comprises an acquisition wire harness, a jumper bar electrically connected with the acquisition wire harness, a protective cover for mounting the jumper bar, and a terminal connected with the acquisition wire harness, wherein the acquisition wire harness is connected with the jumper bar through the terminal; the connection part of the terminal and the jumper bar is provided with a necking, and when the current of the terminal exceeds the rated current, the terminal is fused. The battery module comprises the CCS assembly. According to the CCS assembly, a complex protection device is replaced by the terminal, and when the current of the terminal exceeds the rated current, the terminal can be quickly fused by using the heat of the terminal, so that the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, in particular to a CCS component and a battery module. Background Art

[0002] The CCS (collection integrated circuit) component is configured in the battery pack to collect the temperature and / or voltage of multiple battery cells to monitor the status of the battery cells. In the energy storage system required by industrial production, the current battery pack sampling is diverse. Generally, the front is directly welded to the bus, and the back end is led to the BMS (Battery Management System) from the board connector. During the voltage collection process, excessive collection current can easily cause damage to the BMU (Battery Module Unit) hardware. BMU is the core part of the battery and is expensive.

[0003] In order to protect the BMU and reduce damage to the BMU during use, a protective device with a PCB (Printed Circuit Board) is usually added to assist in disconnecting it, thereby avoiding excessive current collection. However, this method makes the CCS component production process complicated, reduces production efficiency, and has high production costs and difficulty in maintenance. Utility Model Content

[0004] In view of the above-mentioned deficiencies, the purpose of the present utility model is to provide a CCS component and a battery module, which reduces production costs and improves production efficiency; when the collected current exceeds the designed current, it can be quickly disconnected to protect the BMU.

[0005] The embodiment of the utility model provides a CCS assembly, including a collection harness, a jumper bar electrically connected to the collection harness, a protective cover for installing the jumper bar, and a terminal for connecting to the collection harness;

[0006] Wherein, the collection harness is connected to the jumper bar through the terminal; the connection between the terminal and the jumper bar is configured as a neck, and when the terminal current exceeds the rated current, the terminal is fused.

[0007] Furthermore, the terminal includes a welding portion, a connecting portion and a cold pressing portion which are connected in sequence, the welding portion is connected to the jumper row, and the cold pressing portion is connected to the collection harness; the width of the connecting portion gradually decreases from the cold pressing portion to the welding portion.

[0008] Furthermore, the welding portion is a disc structure, and the diameter of the welding portion is 1.5 mm to 5.0 mm.

[0009] Furthermore, the thickness of the connecting portion is 0.1 mm.

[0010] Furthermore, the neck width at the connection between the terminal and the jumper row is 0.1 mm to 2.0 mm.

[0011] Furthermore, the terminal is formed by punching.

[0012] Furthermore, the protective cover is provided with a gap-avoiding groove for installing the jumper row and a wire trough for storing the collection wire harness; the gap-avoiding grooves on the protective cover are arranged in two rows, and each row is arranged along the length direction of the protective cover; the wire trough is provided in two rows, and each row is arranged along the length direction of the protective cover.

[0013] Furthermore, the collection harness includes two harness monomers, one ends of the two harness monomers are connected, and the two harness monomers are respectively embedded in two wire grooves.

[0014] Furthermore, the material of the protection cover is plastic.

[0015] An embodiment of the utility model further provides a battery module, comprising the above-mentioned CCS component.

[0016] The CCS assembly and battery module provided in this embodiment have the following beneficial effects:

[0017] (1) The collection harness is connected to the jumper bar through the terminal. A neck is provided at the connection between the terminal and the jumper bar. When the terminal current exceeds the rated current, the terminal can be melted by its own heat, thereby improving the safety of the circuit;

[0018] (2) The use of terminals instead of complex protective devices improves production efficiency and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the structure of the CCS component in the embodiment of the utility model.

[0021] Figure 2 It is a schematic diagram of the decomposition of the CCS component in the embodiment of the utility model.

[0022] In the figure, 10-collecting wire harness, 20-jumper bar, 30-protective cover, 31-air avoidance groove, 32-wire groove, 40-terminal, 41-welding part, 42-connecting part, 43-cold pressing part. DETAILED DESCRIPTION

[0023] 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.

[0024] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships that are usually understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present utility model.

[0025] It should be noted that when an element is referred to as being "fixed on" or "set on" another component, it can be directly on the other component or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0026] The CCS component provided in this embodiment is applied to a battery pack to collect status data of multiple cells in the battery pack.

[0027] like Figure 1 and Figure 2 As shown, the embodiment of the utility model provides a CCS assembly, including a collection harness 10, a jumper bar 20 electrically connected to the collection harness 10, a protective cover 30 for installing the jumper bar 20, and a terminal 40 for connecting to the collection harness 10. The collection harness 10 is connected to the jumper bar 20 through the terminal 40; a neck is provided at the connection between the terminal 40 and the jumper bar 20, and when the current of the terminal 40 exceeds the rated current, the heat generated by the terminal 40 causes the connection between the terminal 40 and the jumper bar 20 to fuse, thereby improving the safety of the circuit, avoiding damage to the BMU due to excessive current, and thus providing protection.

[0028] In some embodiments of the present application, the material used for the jumper bar 20 may be copper.

[0029] Specifically, the neck width at the connection between the terminal 40 and the jumper row 20 is 0.1 mm to 2.0 mm.

[0030] In actual use, the width of the constriction is set according to the size of the actual CCS component and the size of the rated current. In some embodiments of the present application, the width of the constriction can be 0.5 mm, 1.0 mm or 1.5 mm.

[0031] Specifically, the terminal 40 includes a welding portion 41, a connecting portion 42 and a cold pressing portion 43 which are connected in sequence, and the cold pressing portion 43 is connected to the collection harness 10, specifically, the cold pressing portion 43 is connected to the cable in the collection harness 10. The welding portion 41 is connected to the jumper row 20, and in this embodiment, the welding portion 41 and the jumper row 20 are welded into one.

[0032] The width of the connection portion 42 gradually decreases from the cold-pressed portion 43 to the welding portion 41, so that the connection between the terminal 40 and the jumper row 20 presents a necked structure, thereby ensuring the performance of the terminal 40 and ensuring that when the current of the terminal 40 exceeds the rated current, it can fuse, thereby playing a protective role.

[0033] In the actual production process, the terminal 40 is manufactured by a punching process, which has high production efficiency and low cost.

[0034] It is worth mentioning that the width of the neck should be smaller than the diameter of the welding portion 41 .

[0035] Specifically, the welding portion 41 is a disc structure, and the diameter of the welding portion 41 can be set according to the size of the actual CCS component.

[0036] The diameter of the welding portion 41 is 1.5 mm to 5.0 mm. In some embodiments of the present application, the diameter of the welding portion 41 may be 2.0 mm, 2.5 mm, 3.0 mm, 3.5 mm, 4.0 mm or 4.5 mm.

[0037] Specifically, the thickness of the connecting portion 42 is 0.1 mm.

[0038] Specifically, the protective cover 30 is provided with a space-avoiding groove 31 for installing the jumper bar 20 and a wire groove 32 for accommodating the collection wire harness 10 .

[0039] In this embodiment, the protective cover 30 is in the shape of a long strip. The air-avoiding grooves 31 on the protective cover 30 are arranged in two rows, and each row is arranged along the length direction of the protective cover 30 .

[0040] The wire slots 32 are arranged in two rows, and each row is arranged along the length direction of the protection cover 30 .

[0041] It is worth mentioning that the size of the air-avoiding groove 31 corresponds to the size of the cross-connection row 20 .

[0042] Specifically, the collection harness 10 includes two harness monomers (not shown), one end of the two harness monomers are connected, and the two harness monomers are respectively embedded in two wire grooves 32. Each harness monomer includes a plurality of cables (not shown), and each jumper row 20 is connected to at least one cable.

[0043] In the actual processing, the terminal 40 is crimped to the collection harness 10 through the cold pressing part 43. The terminal 40 is welded to the jumper bar 20 through the welding part 41. The collection harness 10 is crimped and fixed with the terminal 40, and the terminal 40 is fixed to the collection harness 10 and then welded to the jumper bar 20. The protective cover 30 serves as a carrier of the jumper bar 20 and is finally welded to the positive and negative electrodes of the battery cell.

[0044] Specifically, the material of the protection cover 30 is plastic, which reduces the weight of the CCS assembly and reduces the cost.

[0045] The embodiment of the utility model also provides a battery module, including the above-mentioned CCS component. When the current exceeds the rated current, the battery module can be repaired by simply replacing the CCS component, which ensures the safety of the BMU, facilitates subsequent maintenance, and reduces maintenance costs.

[0046] The CCS assembly and battery module provided in this embodiment have the following beneficial effects:

[0047] (1) The collection harness 10 is connected to the jumper bar 20 through the terminal 40. A neck is provided at the connection between the terminal 40 and the jumper bar 20. When the terminal current exceeds the rated current, the terminal 40 can be melted by its own heat, thereby improving the safety of the circuit;

[0048] (2) Terminal 40 is used to replace complex protective devices, which improves production efficiency and reduces production costs.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A CCS component, characterized in that: It comprises a collection harness (10), a jumper bar (20) electrically connected to the collection harness (10), a protective cover (30) for installing the jumper bar (20), and a terminal (40) for connecting to the collection harness (10); The collection harness (10) is connected to the jumper bar (20) via the terminal (40); the connection between the terminal (40) and the jumper bar (20) is configured as a neck, and when the current of the terminal (40) exceeds the rated current, the terminal (40) is fused.

2. The CCS assembly according to claim 1, characterized in that The terminal (40) comprises a welding portion (41), a connecting portion (42) and a cold pressing portion (43) which are connected in sequence; the welding portion (41) is connected to the jumper row (20), and the cold pressing portion (43) is connected to the collection harness (10); the width of the connecting portion (42) gradually decreases from the cold pressing portion (43) to the welding portion (41).

3. The CCS assembly according to claim 2, characterized in that The welding portion (41) is a disc structure, and the diameter of the welding portion (41) is 1.5 mm to 5.0 mm.

4. The CCS assembly according to claim 2, characterized in that The thickness of the connecting portion (42) is 0.1 mm.

5. The CCS assembly according to claim 1, characterized in that: The neck width at the connection between the terminal (40) and the jumper row (20) is 0.1 mm to 2.0 mm.

6. The CCS assembly according to claim 1, characterized in that: The terminal (40) is formed by punching.

7. The CCS assembly according to claim 1, characterized in that The protective cover (30) is provided with a clearance groove (31) for installing the jumper row (20) and a wire groove (32) for accommodating the collection wire harness (10); the clearance grooves (31) on the protective cover (30) are arranged in two rows, and each row is arranged along the length direction of the protective cover (30); the wire grooves (32) are provided in two rows, and each row is arranged along the length direction of the protective cover (30).

8. The CCS assembly according to claim 7, characterized in that The collection wire harness (10) comprises two wire harness monomers, one ends of the two wire harness monomers are connected, and the two wire harness monomers are respectively embedded in two wire grooves (32).

9. The CCS assembly according to claim 1, characterized in that: The material of the protective cover (30) is plastic.

10. A battery module, characterized in that: Comprising the CCS assembly as claimed in any one of claims 1 to 9.

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