Stainless steel shell-explosion-proof sheet welding type scribed line structure device and battery

Abstract

The utility model discloses a stainless steel shell-anti-explosion piece welding type scribed line structure device which comprises a stainless steel shell and a plurality of sets of anti-explosion pieces. The anti-explosion piece comprises a supporting table and a positioning table which are integrally formed, and the surface, away from the positioning table, of the supporting table is concaved inwards to form a buffering groove. A hole site penetrates through the stainless steel shell, and a first peripheral shoulder part, a second peripheral shoulder part and a third peripheral shoulder part are sequentially formed around the hole site in an inward concave mode. The positioning table is correspondingly arranged in the hole site, and an unoccupied cavity is formed between the positioning table and the first peripheral shoulder part, so that a certain distance is reserved between the positioning table and the first peripheral shoulder part in the radial direction; the supporting table abuts against the first peripheral shoulder part, and the supporting table and the second peripheral shoulder part are arranged in a welded mode. According to the utility model, the assembly structure of the stainless steel shell and the explosion-proof sheet is creatively improved, and the overall structural strength and stability are improved through the welding forming of the supporting table and the second peripheral shoulder part, so that the battery is not easy to deform in the assembly process, the assembled battery is stable in structure, and the undesirable phenomena such as liquid leakage are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a stainless steel shell-explosion-proof sheet welding type engraved structure device and a battery. Background Art

[0002] Nowadays, new energy is widely used, and the demand for stainless steel shells, as one of the most important structural parts in batteries, has increased dramatically. In the traditional stainless steel shell-explosion-proof sheet scoring structure, the stainless steel shell is a V-shaped scoring structure (the structure is as shown in the attached manual). Figure 4 and 5 As shown in the figure, the product stability of this structure is poor, it is easy to deform, and the battery will leak after assembly. These undesirable conditions make it difficult to guarantee the quality of stainless steel shell products and battery assembly products. In addition, this production model has high costs, low pass rates, high investment and low returns, which makes it difficult for the company to bear. Utility Model Content

[0003] In order to overcome the above technical problems, the utility model discloses a stainless steel shell-explosion-proof plate welded type engraved structure device and a battery.

[0004] The technical solution adopted by the utility model to achieve the above-mentioned purpose is:

[0005] A stainless steel shell-explosion-proof disk welded type scoring structure device, comprising a stainless steel shell and a plurality of groups of explosion-proof disks arranged at the ends of the stainless steel shell;

[0006] The explosion-proof plate comprises an integrally formed support platform and a positioning platform, and a surface of the support platform away from the positioning platform is concave to form a buffer groove;

[0007] A hole is provided through the stainless steel shell, and a first peripheral shoulder, a second peripheral shoulder and a third peripheral shoulder are formed in sequence around the hole;

[0008] The positioning platform is correspondingly arranged in the hole, and a spare cavity is formed between the positioning platform and the first peripheral shoulder, so that a certain distance is left between the two in the radial direction;

[0009] The support platform is in contact with the first peripheral shoulder, and the support platform is welded to the second peripheral shoulder.

[0010] The above-mentioned stainless steel shell-explosion-proof plate welded scoring structure device, wherein the length of the support platform is greater than the length of the positioning platform, the width of the support platform is greater than the width of the positioning platform, and the height of the support platform is greater than the height of the positioning platform.

[0011] The above-mentioned stainless steel shell-explosion-proof plate welded scoring structure device, wherein the length of the buffer groove is greater than the length of the positioning platform, the width of the buffer groove is greater than the width of the positioning platform, and the height of the buffer groove is less than the height of the support platform.

[0012] In the above-mentioned stainless steel shell-explosion-proof disk welded scoring structure device, the height of the positioning platform is smaller than the height of the first peripheral shoulder, and the height of the supporting platform is smaller than the height of the second peripheral shoulder.

[0013] In the above-mentioned stainless steel shell-explosion-proof disk welded scoring structure device, the height of the first peripheral shoulder is greater than the height of the second peripheral shoulder, and the height of the second peripheral shoulder is greater than the height of the third peripheral shoulder.

[0014] In the above-mentioned stainless steel shell-explosion-proof disk welded scoring structure device, the inner wall surface of the stainless steel shell is flush with the lower surface of the first peripheral shoulder.

[0015] A battery comprises the above-mentioned stainless steel shell-explosion-proof disk welded scoring structure device.

[0016] The beneficial effects of the utility model include the following points:

[0017] (1) The assembly structure of the stainless steel shell and the explosion-proof disk is innovatively improved. The support platform and the second peripheral shoulder are welded to replace the traditional scoring structure, which effectively improves the overall structural strength and stability. It is not easy to deform during welding, transportation and assembly, so that the assembled battery structure is stable, reduces the occurrence of adverse phenomena such as leakage, and improves the quality of the finished battery.

[0018] (2) The explosion-proof disk is optimized to have a support platform and a positioning platform, which effectively enhances the structural strength of the explosion-proof disk, wherein the structural strength of the support platform is greater than that of the positioning platform. During welding, the external force is borne by the support platform, which can reduce the damage of welding to the positioning platform, thereby preventing the explosion-proof disk from being deformed;

[0019] (3) During welding, the welding area between the support platform and the second peripheral shoulder is subjected to force, and the buffer groove helps to prevent the explosion-proof plate from further deforming inward;

[0020] (4) The first peripheral shoulder and the second peripheral shoulder block the deformation path of the explosion-proof plate to support and limit the explosion-proof plate that is about to deform excessively, thereby preventing the explosion-proof plate from further deforming and reducing the probability of the positioning platform being damaged during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a schematic cross-sectional view of the structure of the utility model;

[0023] Figure 2 For the utility model Figure 1 A magnified schematic diagram of part A;

[0024] Figure 3 It is a schematic cross-sectional view of the structure of the explosion-proof disk in the utility model;

[0025] Figure 4 It is a cross-sectional schematic diagram of a traditional stainless steel shell-explosion-proof sheet engraved line structure;

[0026] Figure 5 for Figure 4 An enlarged schematic diagram of part B. DETAILED DESCRIPTION

[0027] The present invention is further described below through specific embodiments to make the technical solution of the present invention easier to understand and grasp, rather than to limit the present invention.

[0028] Example: See Figures 1 to 3 The present embodiment provides a stainless steel shell-explosion-proof disk welding type scoring structure device, which includes a stainless steel shell 1 and a plurality of groups of explosion-proof disks 2 arranged at the end of the stainless steel shell 1;

[0029] The explosion-proof disk 2 includes an integrally formed support platform 11 and a positioning platform 12, and a surface of the support platform 11 away from the positioning platform 12 is concave to form a buffer groove 13;

[0030] A hole is provided through the stainless steel housing 1, and a first peripheral shoulder 21, a second peripheral shoulder 22 and a third peripheral shoulder 23 are formed in sequence around the hole.

[0031] The positioning platform 12 is correspondingly disposed in the hole, and a spare cavity is formed between the positioning platform 12 and the first peripheral shoulder 21, so that a certain distance is left between the two in the radial direction;

[0032] The support platform 11 is in contact with the first outer shoulder 21 , and the support platform 11 is welded to the second outer shoulder 22 .

[0033] Preferably, the length of the support platform 11 is greater than the length of the positioning platform 12, the width of the support platform 11 is greater than the width of the positioning platform 12, and the height of the support platform 11 is greater than the height of the positioning platform 12; the explosion-proof plate 2 is optimized in structure design to include a support platform 11 and a positioning platform 12, which effectively enhances the structural strength of the explosion-proof plate 2, wherein the structural strength of the support platform 11 is greater than the structural strength of the positioning platform 12, and the external force is borne by the support platform 11 during welding, which can reduce the damage of the welding to the positioning platform 12, thereby preventing the explosion-proof plate 2 from deformation.

[0034] Preferably, the length of the buffer groove 13 is greater than the length of the positioning platform 12, the width of the buffer groove 13 is greater than the width of the positioning platform 12, and the height of the buffer groove 13 is less than the height of the support platform 11; during welding, the welding area between the support platform 11 and the second outer shoulder 22 is subjected to force, and the buffer groove 13 helps to prevent the explosion-proof plate 2 from further deforming inward.

[0035] Preferably, the height of the positioning platform 12 is smaller than the height of the first peripheral shoulder 21 , and the height of the support platform 11 is smaller than the height of the second peripheral shoulder 22 ;

[0036] The height of the first peripheral shoulder 21 is greater than the height of the second peripheral shoulder 22, and the height of the second peripheral shoulder 22 is greater than the height of the third peripheral shoulder 23; the first peripheral shoulder 21 and the second peripheral shoulder 22 block the deformation path of the explosion-proof plate 2 to support and limit the explosion-proof plate 2 that is about to deform excessively, prevent the explosion-proof plate 2 from further deformation, and reduce the probability of the positioning platform 12 being damaged during welding.

[0037] Specifically, the inner wall surface of the stainless steel housing 1 is flush with the lower surface of the first peripheral shoulder 21 .

[0038] Specifically, the support platform 11 and the second outer shoulder 22 are welded and formed by laser welding or other methods, and the number of welding locations between the two can be adjusted according to actual conditions.

[0039] This embodiment also discloses a battery, which includes the stainless steel shell-explosion-proof plate welded scoring structure device as described above.

[0040] The utility model is reasonably and cleverly designed, and innovatively improves the assembly structure of the stainless steel shell and the explosion-proof disk. The support platform and the second outer shoulder are welded and formed to replace the traditional scoring structure, thereby effectively improving the overall structural strength and stability. It is not easy to deform during welding, transportation and assembly, so that the assembled battery structure is stable, the occurrence of adverse phenomena such as leakage is reduced, and the quality of the battery product is improved.

[0041] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the utility model by using the technical means and technical contents disclosed above, without departing from the scope of the technical solution of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, all equivalent changes made according to the shape, structure and principle of the utility model without departing from the content of the technical solution of the utility model should be covered by the protection scope of the utility model.

Claims

1. A stainless steel shell-explosion-proof disk welded line structure device, characterized in that: It includes a stainless steel shell, and several groups of explosion-proof discs arranged at the ends of the stainless steel shell; The explosion-proof plate comprises an integrally formed support platform and a positioning platform, and a surface of the support platform away from the positioning platform is concave to form a buffer groove; A hole is provided through the stainless steel shell, and a first peripheral shoulder, a second peripheral shoulder and a third peripheral shoulder are formed in sequence around the hole; The positioning platform is correspondingly arranged in the hole, and a spare cavity is formed between the positioning platform and the first peripheral shoulder, so that a certain distance is left between the two in the radial direction; The support platform is in contact with the first peripheral shoulder, and the support platform is welded to the second peripheral shoulder.

2. The stainless steel shell-explosion-proof disk welded type scoring structure device according to claim 1 is characterized in that: The length of the support platform is greater than the length of the positioning platform, the width of the support platform is greater than the width of the positioning platform, and the height of the support platform is greater than the height of the positioning platform.

3. The stainless steel shell-explosion-proof disk welded type scoring structure device according to claim 2 is characterized in that: The length of the buffer groove is greater than the length of the positioning platform, the width of the buffer groove is greater than the width of the positioning platform, and the height of the buffer groove is less than the height of the supporting platform.

4. The stainless steel shell-explosion-proof disk welded type engraved structure device according to claim 3, characterized in that: The height of the positioning platform is smaller than the height of the first peripheral shoulder, and the height of the supporting platform is smaller than the height of the second peripheral shoulder.

5. The stainless steel shell-explosion-proof disk welded type scoring structure device according to claim 4, characterized in that: The height of the first peripheral shoulder is greater than the height of the second peripheral shoulder, and the height of the second peripheral shoulder is greater than the height of the third peripheral shoulder.

6. The stainless steel shell-explosion-proof disk welded type scoring structure device according to claim 5, characterized in that: The inner wall surface of the stainless steel shell is flush with the lower surface of the first peripheral shoulder.

7. A battery, characterized in that: It comprises a stainless steel shell-explosion-proof disk welded line-marking structure device as described in any one of claims 1 to 6.

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