Voltage sampling cantilever fixing structure of FFC and power battery connecting assembly

Abstract

The utility model discloses a voltage sampling cantilever fixing structure of an FFC. The voltage sampling cantilever fixing structure comprises an electric connection sheet and a flexible flat cable. The flexible flat cable is provided with a sampling cantilever, the sampling cantilever is in bending connection relative to a main body of the flexible flat cable, and a reinforcing plate is attached to the bending connection part; a boss with a punched hole is arranged on the electric connecting piece, and the sampling cantilever penetrates through the punched hole and then is connected with the electric connecting piece. The utility model discloses a voltage sampling cantilever fixing structure of a flexible flat cable (FFC), which effectively solves the problem of difficulty in welding and fixing in traditional flexible flat cable sampling, and improves the performance and reliability of products.

Description

Technical Field

[0001] The utility model relates to a fixing structure, in particular to a voltage sampling cantilever fixing structure of an FFC and a power battery connecting component. Background Art

[0002] In recent years, the application of flexible flat cables (FFC) in power battery connection components has attracted more and more attention. Compared with flexible printed circuits (FPC), flexible flat cables have the advantages of low price, simple process, short development cycle, short production cycle, good insulation, etc. However, when applied to power battery connection components, there has always been a problem that the welding position of the sampling point is difficult to fix and the consistency is poor, which seriously hinders the process of mass production. Therefore, in view of the above defects, it is urgent to develop a flexible flat cable voltage sampling cantilever fixing structure applied to power battery connection components. Utility Model Content

[0003] In order to solve the deficiencies of the above-mentioned technologies, the utility model provides a voltage sampling cantilever fixing structure and a power battery connection assembly of an FFC.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is a voltage sampling cantilever fixing structure of FFC, which includes an electrical connection sheet and a flexible flat cable;

[0005] The flexible flat cable has a sampling cantilever, which is bent and connected to the main body of the flexible flat cable, and a reinforcing plate is attached to the bent connection;

[0006] A boss with a punching hole is provided on the electrical connection sheet, and the sampling cantilever passes through the punching hole and is connected with the electrical connection sheet.

[0007] Furthermore, the sampling cantilever is connected to the reinforcing plate by bonding with the bending connection of the flexible flat cable using hot pressing adhesive.

[0008] Furthermore, the boss is an arch bridge structure protruding from the upper surface of the electrical connecting piece, the punched hole is an arch hole of the arch bridge structure, the penetration direction of the arch hole is consistent with the direction of the sampling cantilever, and the boss and the two sides of the sampling cantilever inserted therein overlap each other.

[0009] Furthermore, the sampling cantilever is welded to the welding point of the electrical connection sheet after passing through the punching hole.

[0010] A power battery connection component adopts an FFC voltage sampling cantilever fixing structure, including a blister isolation plate, on which an electrical connection piece and a flexible flat cable are arranged.

[0011] Furthermore, the electrical connection sheet is riveted to the blister isolation plate through a heat riveting connection structure.

[0012] Furthermore, the flexible flat cable is attached to the blister isolation plate.

[0013] The utility model discloses a cantilever fixing structure for voltage sampling of an FFC, which effectively solves the welding and fixing difficulties existing in traditional flexible flat cable sampling and improves the performance and reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the voltage sampling cantilever fixing structure.

[0015] Figure 2 It is a schematic diagram of the structure of the power battery connection assembly.

[0016] In the figure: 1. electrical connection piece; 2. blister isolation plate; 3. flexible flat cable; 1a. boss; 1b. punching hole; 3a. sampling cantilever; 3b. reinforcement plate. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Embodiment 1, as Figure 1 The voltage sampling cantilever fixing structure of the FFC shown in the figure includes an electrical connecting piece 1 and a flexible flat cable 3; the flexible flat cable 3 has a sampling cantilever 3a, and the sampling cantilever 3a is bent and connected relative to the main body of the flexible flat cable 3, and a reinforcing plate 3b is attached to the bent connection. The sampling cantilever 3a is bonded and connected to the reinforcing plate 3b at the bent connection relative to the flexible flat cable 3 using hot pressing adhesive, and the reinforcing plate is attached to the upper end of the bend, which not only reinforces the bend, but also limits the bending rebound of the sampling cantilever 3a, which is one of the means to solve the difficulty in fixing the welding point of the sampling cantilever 3a.

[0019] A boss 1a with a punching hole 1b is provided on the electrical connection sheet 1, and the sampling cantilever 3a is connected to the electrical connection sheet 1 after passing through the punching hole 1b. The boss 1a is an arch bridge structure protruding from the upper surface of the electrical connection sheet 1, and the punching hole 1b is an arch hole of the arch bridge structure. The penetration direction of the arch hole is consistent with the direction of the sampling cantilever 3a. The boss 1a and the sampling cantilever 3a penetrated therein overlap each other on both sides. The boss 1a and the punching hole 1b on the electrical connection sheet 1 jointly limit the movement of the sampling cantilever 3a in the battery core welding area, ensuring the consistency of the welding area, which is another important means to solve the difficulty of fixing the welding point of the sampling cantilever 3a.

[0020] The sampling cantilever 3a passes through the punching hole 1b and is welded to the welding point of the electrical connection sheet 1. The above design solves the problem of fixing the flexible flat cable.

[0021] Embodiment 2, as Figure 2 A power battery connection assembly shown in the figure adopts the voltage sampling cantilever fixing structure of the FFC according to the scheme of the first embodiment. The voltage sampling cantilever fixing structure of the FFC includes an electrical connection piece 1 and a flexible flat cable 3; the flexible flat cable 3 has a sampling cantilever 3a, and the sampling cantilever 3a is bent and connected relative to the main body of the flexible flat cable 3, and a reinforcing plate 3b is attached to the bent connection. The sampling cantilever 3a is attached and connected to the reinforcing plate 3b using hot pressing adhesive relative to the bent connection of the flexible flat cable 3, and the reinforcing plate is attached to the upper end of the bend. A boss 1a with a punching hole 1b is opened on the electrical connection piece 1, and the sampling cantilever 3a is connected to the electrical connection piece 1 after passing through the punching hole 1b. The boss 1a is an arch bridge structure protruding from the upper surface of the electrical connecting piece 1, and the punching hole 1b is an arch hole of the arch bridge structure. The penetration direction of the arch hole is consistent with the direction of the sampling cantilever 3a. The boss 1a and the two sides of the sampling cantilever 3a penetrated therein overlap each other. After the sampling cantilever 3a passes through the punching hole 1b, it is welded to the welding point of the electrical connecting piece 1.

[0022] The power battery connection assembly also includes a blister isolation plate 2, and the electrical connection sheet 1 and the flexible flat cable 3 are both arranged on the blister isolation plate 2. Specifically, the electrical connection sheet 1 is riveted to the blister isolation plate 2 through a hot riveting connection structure, and the flexible flat cable 3 is attached to the blister isolation plate 2. The blister isolation plate provides a position for the installation of the electrical connection sheet and the blister isolation plate on the one hand, and can also play an insulating role on the other hand.

[0023] Different from the traditional flexible flat cable sampling power battery connection components, the present invention adopts a new flexible flat cable voltage sampling cantilever fixing structure to improve the welding and fixing difficulties existing in the traditional flexible flat cable sampling.

[0024] The FFC voltage sampling cantilever fixing structure proposed by the utility model has the following advantages:

[0025] Simple structure: By setting bosses and punching holes on the electrical connecting sheet and using a reinforcing plate, the sampling cantilever is fixed and reinforced. The structure is simple and easy to manufacture and assemble.

[0026] Reliable fixation: The use of reinforcement plates and the limitation of the range of motion of the sampling cantilever effectively solve the problem of fixing the welding points of the sampling cantilever and improve the reliability of the connection.

[0027] Improve welding quality: Since the movement of the sampling cantilever in the welding area is limited, the consistency of the welding area can be ensured, thereby improving the welding quality.

[0028] Enhanced insulation performance: The use of blister isolation board not only provides an installation location for the electrical connection piece and the flexible flat cable, but also plays an insulating role, thereby improving the insulation performance of the product.

[0029] Strong applicability: The utility model can be applied to various types of FFC voltage sampling, and is particularly suitable for solving the problem of difficulty in fixing the welding point of the sampling cantilever and improving the welding quality.

[0030] The above implementation modes are not limitations of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the technical solution of the present invention also belong to the protection scope of the present invention.

Claims

1. A voltage sampling cantilever fixing structure of FFC, characterized by: It comprises an electrical connection sheet (1) and a flexible flat cable (3); The flexible flat cable (3) has a sampling cantilever (3a), the sampling cantilever (3a) is bent and connected to the main body of the flexible flat cable (3), and a reinforcing plate (3b) is attached to the bent connection; A boss (1a) having a punch hole (1b) is provided on the electrical connection sheet (1), and the sampling cantilever (3a) passes through the punch hole (1b) and is connected to the electrical connection sheet (1).

2. The voltage sampling cantilever fixing structure of FFC according to claim 1, characterized in that: The sampling cantilever (3a) is bonded and connected to the reinforcing plate (3b) using hot pressing adhesive at the bending connection position relative to the flexible flat cable (3).

3. The voltage sampling cantilever fixing structure of FFC according to claim 1, characterized in that: The boss (1a) is an arch bridge structure protruding from the upper surface of the electrical connection sheet (1); the punched hole (1b) is an arch hole of the arch bridge structure; the penetration direction of the arch hole is consistent with the direction of the sampling cantilever (3a); the boss (1a) and the sampling cantilever (3a) penetrated therein overlap each other on both sides.

4. The voltage sampling cantilever fixing structure of FFC according to claim 1, characterized in that: The sampling cantilever (3a) passes through the punching hole (1b) and is welded to the welding point of the electrical connection sheet (1).

5. A power battery connection assembly, characterized in that: The voltage sampling cantilever fixing structure of the FFC according to any one of claims 1 to 4 comprises a blister isolation plate (2), and the electrical connection sheet (1) and the flexible flat cable (3) are both arranged on the blister isolation plate (2).

6. The power battery connection assembly according to claim 5, characterized in that: The electrical connection sheet (1) is riveted to the blister isolation plate (2) via a heat riveting connection structure.

7. The power battery connection assembly according to claim 5, characterized in that: The flexible flat cable (3) is attached to the blister isolation plate (2).

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