Elastic sheet type connecting structure

Abstract

The utility model relates to an elastic sheet type connecting structure. Belongs to the technical field of low-voltage new energy batteries. The utility model mainly solves the problems that the cleanliness exceeds the standard when a screw is locked on an end plate of a conventional wire harness connecting end side plate and a negative electrode of a battery, the wire is easy to press during assembly, and the requirement on an operation space is increased. The device is mainly characterized in that the device is composed of an elastic piece installed on the upper portion of a circuit board assembly, and communication between the elastic piece and the circuit board assembly is achieved; the elastic piece is composed of an installation fixing face at one end, an elastic deformation area in the middle and an installation supporting face at the other end, and the installation fixing face is parallel to the installation supporting face. The utility model has the characteristics that the connection between the elastic sheet and the end plate can be realized along with the assembly of a product, the assembly difficulty of battery structural components is reduced, the production efficiency is improved, the quality qualification rate is improved and the product cost is reduced, and is mainly used for the conduction between the end side plate in the battery and the outside.

Description

Technical Field

[0001] The utility model belongs to the technical field of low-voltage new energy batteries, and specifically relates to a spring-type connection structure, which is used for connecting the internal end side plate of the battery with the external conductive connection, so as to improve the electromagnetic compatibility problem of the product. Background Art

[0002] When dealing with the problem of improving battery compatibility testing for low-voltage new energy battery systems, a wiring harness is generally used to connect the end side panel to the negative pole of the battery to achieve the improvement of the battery compatibility testing problem.

[0003] Since the wiring harness connection requires screws to be locked at both ends, when the screws are locked on the end plate, there are problems such as excessive cleanliness, easy wire compression during assembly, and increased operating space requirements. Summary of the invention

[0004] The purpose of the utility model is to provide a spring-type connection structure in order to overcome the above-mentioned shortcomings.

[0005] The technical solution of the utility model is: a spring-type connection structure, which is characterized in that: it is composed of a spring installed on the upper part of the circuit board assembly to achieve the connection between the spring and the circuit board assembly; the spring is composed of a mounting fixing surface at one end, an elastic deformation zone in the middle and a mounting support surface at the other end, and the mounting fixing surface is parallel to the mounting support surface.

[0006] The height of the spring sheet in the technical solution of the utility model is greater than the spacing between the circuit board assembly and the end plate after assembly.

[0007] The installation and fixing surface described in the technical solution of the utility model is provided with an installation hole for fixing the spring piece and a positioning hole for positioning the spring piece.

[0008] The diameters of the mounting hole and the positioning hole described in the technical solution of the utility model are different; the positioning hole cooperates with the positioning column on the circuit board assembly.

[0009] The elastic deformation zone described in the technical solution of the utility model is a semicircular arc structure or a folded edge structure.

[0010] The spring piece described in the technical solution of the utility model is made of elastic material.

[0011] The elastic material described in the technical solution of the utility model is stainless steel or phosphor bronze.

[0012] The installation support surface described in the technical solution of the utility model is designed as a support plane.

[0013] The support plane described in the technical solution of the utility model is an area of ​​15mm 2 -50mm 2rectangular plane.

[0014] The utility model adopts a spring-type connection structure composed of springs installed on the upper part of the circuit board assembly to achieve the connection between the spring and the circuit board assembly, wherein the spring is composed of a mounting fixing surface at one end, an elastic deformation zone in the middle and a mounting support surface at the other end, and the mounting fixing surface is parallel to the mounting support surface, so that when the upper cover assembly and the lower box are normally assembled, the spring can be in contact with the end plate. The utility model optimizes the installation method between the product structural parts, meets the requirements of connecting the end side plate with the negative pole of the battery, avoids the need for locking screws at both ends due to the connection of the wiring harness, and solves the problems of excessive cleanliness when the screws are locked on the end plate, easy wire pressing during assembly, and increased operating space requirements.

[0015] The utility model has the characteristics of being able to connect the spring sheet and the end plate with the assembly of the product, reducing the difficulty of assembling the battery structural components, improving production efficiency, improving the quality pass rate and reducing product costs, and is mainly used for conducting the internal end side plate of the battery with the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram showing the assembly effect of the shrapnel of the utility model.

[0017] Figure 2 It is an exploded view of the shrapnel assembly of the utility model.

[0018] Figure 3 It is an enlarged view of the assembly of the spring piece of the utility model.

[0019] Figure 4 This is a schematic diagram of the battery packaging.

[0020] Figure 5 It is a cross-sectional view of the battery packaging.

[0021] Figure 6 This is a schematic diagram of the structure of the shrapnel of the utility model Figure 1 .

[0022] Figure 7 This is a schematic diagram of the structure of the shrapnel of the utility model Figure 2 .

[0023] Markings in the figure: 1-circuit board assembly; 2-spring; 3-screw; 4-upper cover assembly; 5-mounting hole; 6-positioning hole; 7-end plate; 8-lower box; 9-side plate; 10-mounting support surface; 11-elastic deformation area; 12-mounting fixing surface. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the embodiments.

[0025] like Figure 1As shown, an embodiment of a spring-type connection structure of the utility model is composed of a spring 2 installed on the upper part of the circuit board assembly 1 to achieve communication between the spring 2 and the circuit board assembly 1.

[0026] The spring 2 is composed of a mounting surface 12 at one end, an elastic deformation zone 11 in the middle, and a mounting support surface 10 at the other end. The mounting surface 12 is rectangular, and is provided with a mounting hole 5 and a positioning hole 6, wherein the mounting hole 5 is large and the positioning hole 6 is small. The mounting hole 5 is used to fix the spring 2 on the circuit board assembly 1 through a screw 3, and the positioning hole 6 cooperates with the positioning column on the circuit board assembly 1 to position the spring 2, which can effectively prevent the spring 2 from being installed upside down and prevent the spring 2 from rotating during assembly. The elastic deformation zone 11 is a semicircular arc structure, that is, it is composed of an arc surface in the middle and straight surfaces on both sides, the lower straight surface is perpendicular to the mounting surface 12, and the elastic deformation zone 11 can also be a folded edge structure. The mounting support surface 10 is rectangular, the straight surface above the elastic deformation zone 11 is perpendicular to the mounting support surface 10, and the mounting surface 12 is parallel to the mounting support surface 10.

[0027] The spring piece 2 is made of elastic material, such as stainless steel, phosphor bronze, etc., but not limited to these two materials. The elastic deformation ability of the elastic material is used to achieve contact with the end plate 7 after assembly.

[0028] The height of the spring piece 2 is greater than the spacing between the circuit board assembly and the end plate after assembly, so that the mounting support surface 10 of the spring piece 2 can be interference fit with the plane of the end plate 7 after the upper cover assembly 4 and the lower box body 8 are assembled, so as to achieve permanent elastic contact with the end plate 7 after assembly.

[0029] The mounting support surface 10 is designed to be a larger support plane, and the support plane has an area of ​​15mm 2 -50mm 2 The rectangular plane increases the friction between the mounting support surface 10 and the plane of the end plate 7, thereby avoiding displacement caused by the mounting support surface 10 being too small under the vibration environment of the whole vehicle.

[0030] The spring piece 2 is fixed to the circuit board assembly 1 and the upper cover assembly 4 by screws 3 , so that the spring piece 2 and the circuit board assembly 1 are connected.

[0031] The utility model optimizes the installation method between product structural parts, meets the requirements of connecting the side plate 9 and the end plate 7 with the negative pole of the battery, avoids the need to lock the screws at both ends due to the connection of the wiring harness, and the problems of excessive cleanliness when the screws are locked on the end plate, easy wire pressing during assembly, and increased operating space requirements. The upper cover assembly 4 and the lower box body 8 are assembled normally, and the spring 2 is in contact with the end plate 7. With the optimization of the product assembly method, the difficulty of assembling the battery structural parts is reduced, thereby improving production efficiency, improving the quality pass rate, and reducing product costs.

Claims

1. A spring-type connection structure, characterized in that: The spring sheet (2) is composed of a spring sheet (2) mounted on the upper part of the circuit board assembly (1) to achieve communication between the spring sheet (2) and the circuit board assembly (1); the spring sheet (2) is composed of a mounting fixing surface (12) at one end, an elastic deformation zone (11) in the middle, and a mounting support surface (10) at the other end; the mounting fixing surface (12) is parallel to the mounting support surface (10).

2. A spring-type connection structure according to claim 1, characterized in that: The height of the spring (2) is greater than the spacing between the circuit board assembly and the end plate after assembly.

3. A spring-type connection structure according to claim 1 or 2, characterized in that: The mounting and fixing surface (12) is provided with a mounting hole (5) for fixing the spring sheet (2) and a positioning hole (6) for positioning the spring sheet (2).

4. The spring-type connection structure according to claim 3 is characterized in that: The diameters of the mounting hole (5) and the positioning hole (6) are different; the positioning hole (6) cooperates with the positioning column on the circuit board assembly (1).

5. A spring-type connection structure according to claim 1, 2 or 4, characterized in that: The elastic deformation zone (11) is a semicircular arc structure or a folded edge structure.

6. The spring-type connection structure according to claim 5, characterized in that: The spring piece (2) is made of elastic material.

7. The spring-type connection structure according to claim 6, characterized in that: The elastic material is stainless steel or phosphor bronze.

8. A spring-type connection structure according to any one of claims 1-2, 4, 6-7, characterized in that: The installation support surface (10) is designed as a support plane.

9. The spring-type connection structure according to claim 8, characterized in that: The support plane has an area of ​​15mm 2 -50mm 2 rectangular plane.

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