Shell and top cover anti-deformation connecting structure and battery

Abstract

The utility model relates to the technical field of batteries, and discloses a shell and top cover anti-deformation connecting structure and a battery, the shell and top cover anti-deformation connecting structure comprises a shell and a top cover, the top cover comprises a top cover sheet, an inner cavity is arranged in the shell, and the inner cavity penetrates through the top of the shell to form a top opening; two sides of the top cover sheet are respectively bent to form top bent sheets; the top cover piece covers the top opening, the top bent piece abuts against the shell, and a closed space is defined between the top cover and the shell; the two sides of the top cover piece are bent to form the top bent pieces respectively, the top bent pieces and the top cover piece are arranged in a bent mode, the structural strength of the top cover is greatly improved, secondly, after the top cover piece covers the top opening, the top bent pieces abut against the shell and are fixed to the shell in a welded mode, the top cover and the shell are fixed in a welded mode, and the service life of the top cover is prolonged. The structural strength of the top cover is kept, the top cover and the shell are stably connected, the contact area between the top cover piece and the shell is large, and the top cover is prevented from deforming.

Description

TECHNICAL FIELD

[0001] The utility model discloses a battery's technical field, and specifically relates to the casing and the top cover anti-deformation connecting structure and battery. BACKGROUND

[0002] The battery is widely used in new energy electric car, energy storage, mobile device and other related products, and with the rise of new energy, the technology and demand of battery are rapidly increasing.

[0003] The casing of the battery includes a casing and a top cover, wherein the casing has a top opening, the top cover is connected with the casing and covers the top opening of the casing, so that an enclosed inner cavity is formed in the casing, and the battery cell is placed in the inner cavity.

[0004] In the prior art, the top cover has a top cover sheet, the top cover sheet is flat, and the side edges of the top cover sheet are directly welded and fixed with the casing, the contact area is small, the welding operation is troublesome, and the structural strength of the top cover is low, so deformation is prone to occur. UTILITY MODEL CONTENTS

[0005] The utility model discloses a casing and a top cover anti-deformation connecting structure and battery, which aims to solve the problem that the top cover is easily deformed after being welded with the casing in the prior art.

[0006] The utility model discloses a casing and a top cover anti-deformation connecting structure and battery, which aims to solve the problem that the top cover is easily deformed after being welded with the casing in the prior art.

[0007] Further, the inner cavity penetrates the side of the casing to form a side opening, the end of the top cover sheet is bent to form a side plate, the two sides of the side plate are bent to form side bending sheets, the side plate covers the side opening, the side bending sheets abut against the casing and are welded and fixed with the casing.

[0008] Further, the two sides of the casing are formed with the side openings, respectively, the two ends of the top cover sheet are bent to form two side plates, respectively, and the two side plates cover the two side openings, respectively.

[0009] Further, the top cover is provided with a pole, and the side plate is provided with an explosion-proof sheet.

[0010] Further, the top cover sheet and the two side plates are integrally formed.

[0011] Further, the shell comprises two oppositely arranged panels, a bottom plate is arranged between the bottoms of the two panels, and the two panels and the bottom plate enclose the inner cavity; the top opening is formed between the tops of the two panels, the top bending piece abuts against the inner side wall of the panel and is welded and fixed with the panel.

[0012] Further, the side opening is formed between the sides of the two panels, the side bending piece abuts against the inner side wall of the panel and is welded and fixed with the panel.

[0013] Further, the side plate abuts against the bottom plate from top to bottom and is welded and fixed with the bottom plate.

[0014] Further, the two panels and the bottom plate are integrally formed.

[0015] Compared with the prior art, the shell and the top cover anti-deformation connecting structure provided by the utility model, the two sides of the top cover piece are bent to form top bending pieces, the top bending pieces are arranged in a bent mode between the top cover piece, the structural strength of the top cover is greatly enhanced, when the top cover piece covers the top opening, the top bending piece abuts against the shell and is welded and fixed with the shell, so that the top cover and the shell are welded and fixed, the structural strength of the top cover is maintained, the connection between the top cover and the shell is stable, the contact area between the top cover piece and the shell is large, and the top cover is prevented from being deformed.

[0016] The utility model also provides a battery comprising the shell and the top cover anti-deformation connecting structure.

[0017] Compared with the prior art, the battery provided by the utility model comprises the shell and the top cover anti-deformation connecting structure. Since the top bending piece of the top cover piece abuts against the shell and is welded and fixed, the structural strength of the top cover is greatly enhanced, the connection between the top cover and the shell is stable, the top cover is prevented from being deformed, and the service life of the battery is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the partial view of the shell and the top cover anti-deformation connecting structure provided by the utility model;

[0019] Figure 2 is the front view of the top cover provided by the utility model;

[0020] Figure 3 is the three-dimensional view of the shell provided by the utility model;

[0021] Figure 4 is the partial view of the shell and the top cover anti-deformation connecting structure provided by the utility model;

[0022] Figure 5It is partial view of the shell and top cover anti-deformation connecting structure provided by the utility model.

[0023] In the figure: top cover 100, top cover sheet 101, top bending sheet 1011, side plate 102, side bending sheet 1021; shell 200, face plate 201, bottom plate 202, top opening 203, side opening 204. DETAILED DESCRIPTION

[0024] In order to make the utility model purposes, technical scheme and advantages more clearly, the following is combined with the embodiment, and the utility model is further described in detail.It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0025] The implementation of the utility model is described in detail in combination with specific embodiments.

[0026] The same or similar reference numerals in the drawings of the embodiment correspond to the same or similar parts; in the description of the utility model, it should be understood that if the orientation or position relationship indicated by the terms "upper", "lower", "left", "right" and the like is based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore the terms describing the position relationship in the drawings are only used for exemplary description, and cannot be understood as a limitation of the patent, for ordinary skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.

[0027] Referring to Figures 1-5 As shown in the preferred embodiment provided by the utility model.

[0028] The shell and top cover anti-deformation connecting structure comprises a shell 200 and a top cover 100, the top cover 100 comprises a top cover sheet 101, the shell 200 has an inner cavity, the inner cavity penetrates the top of the shell 200, and forms a top opening 203; the two sides of the top cover sheet 101 are bent to form top bending sheets 1011; the top cover sheet 101 covers the top opening 203, the top bending sheets 1011 abut against the shell 200, and a closed space is formed between the top cover 100 and the shell 200

[0029] After the top bending sheets 1011 abut against the shell 200, welding or other fixing methods can be used to fix the top cover 100 and the shell 200.

[0030] The shape of the shell 200 and the top cover 100 can be diversified, which can be integrally formed or manufactured in parts, and the specific implementation is not limited in the embodiment. When the top cover sheet 101 covers the top opening 203, the top cover 100 and the shell 200 are combined into an integral structure.

[0031] The shell and the top cover anti-deformation connection structure provided above, the top cover sheet 101 is respectively bent to form a top bending sheet 1011 on both sides, and the top bending sheet 1011 is arranged between the top cover sheet 101 and the top cover sheet 101. The structure strength of the top cover 100 is greatly enhanced. Secondly, when the top cover sheet 101 covers the top opening 203, the top bending sheet 1011 abuts against the shell 200, and is welded and fixed with the shell 200, so that the top cover 100 and the shell 200 are welded and fixed, the structure strength of the top cover 100 is maintained, the connection between the top cover 100 and the shell 200 is stable, and the contact area between the top cover sheet 101 and the shell 200 is large. Prevent the top cover 100 from deforming.

[0032] In the embodiment, the inner cavity penetrates the side of the shell 200 to form a side opening 204, and the end of the top cover sheet 101 is bent to form a side plate 102. The side plate 102 is respectively bent to form a side bending sheet 1021 on both sides, the side plate 102 covers the side opening 204, and the side bending sheet 1021 abuts against the shell 200 and is welded and fixed with the shell 200.

[0033] By forming the side bending sheet 1021 on the side plate 102, the structure strength of the side plate 102 is greatly enhanced, and the side bending sheet 1021 abuts against the shell 200 and is welded and fixed with the shell 200, so as to ensure the structure strength of the side plate 102 and the stable connection between the side plate 102 and the shell 200. Prevent the side plate 102 from deforming.

[0034] In the embodiment, the shell 200 has the side opening 204 on both sides, and the top cover sheet 101 has the side plate 102 bent on both ends. The two side plates 102 correspond to cover the two side openings 204.

[0035] In this way, the top cover sheet 101 and the two side plates 102 of the top cover 100 form a U-shaped bending structure, and correspondingly, the top opening 203 and the two side openings 204 of the shell 200 form a U-shaped bending structure. The top cover sheet 101 and the two side plates 102 can close the top opening 203 and the two side openings 204.

[0036] In the embodiment, the top cover 100 is provided with a pole and an explosion-proof sheet, which can be arranged on the side plate 102. In this way, the pole and the explosion-proof sheet are arranged.

[0037] The top cover sheet 101 and the two side plates 102 are integrally formed, which further enhances the structure strength of the top cover 100. Alternatively, the top cover sheet 101 and the two side plates 102 can be separately formed and then welded together.

[0038] In the embodiment, the shell 200 comprises two oppositely arranged panels 201, a bottom plate 202 is arranged between the bottoms of the two panels 201, and the two panels 201 and the bottom plate 202 enclose the above-mentioned inner cavity; the top opening 203 is formed between the tops of the two panels 201, and the top bending piece 1011 abuts against the inner side wall of the panel 201 and is welded and fixed with the panel 201.

[0039] The two panels 201 and the bottom plate 202 enclose a U-shaped structure, and the two panels 201 and the bottom plate 202 can be integrally formed or can be separately manufactured and then welded and combined into one.

[0040] The side opening 204 is formed between the sides of the two panels 201, the side bending piece 1021 abuts against the inner side wall of the panel 201 and is welded and fixed with the panel 201, and the side bending piece 1021 can support and reinforce the side of the panel 201.

[0041] In the embodiment, the side plate 102 abuts against the bottom plate 202 from top to bottom and is welded and fixed with the bottom plate 202, so that the bottom of the side plate 102 is combined into one with the bottom plate 202, and the two sides of the side plate 102 are combined into one with the sides of the panel 201 by the side bending piece 1021, and the structure is stable.

[0042] In the embodiment, the two panels 201 and the bottom plate 202 are integrally formed, or the bottom plate 202 and one panel 201 can be integrally formed, for example, directly bent and formed, or welded and formed, and then welded and formed with another panel 201 into a shell.

[0043] The embodiment also provides a battery comprising the above-mentioned shell and top cover anti-deformation connecting structure. Since the top bending piece 1011 of the top cover piece 101 abuts against the shell 200 and is welded and fixed, the structural strength of the top cover 100 is greatly enhanced, the connection between the top cover 100 and the shell 200 is stable, the top cover 100 is prevented from being deformed, and the service life of the battery is greatly improved.

[0044] The above merely describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A housing and top cover anti-deformation connection structure, characterized in that, The shell and the top cover, the shell has an inner cavity, the inner cavity runs through the top of the shell and forms a top opening; the top cover sheet is folded on both sides to form top folding sheets; the top cover sheet covers the top opening, and the top folding sheets abut against the shell; the top cover and the shell form a sealed space.

2. The case and top cover anti-deformation connection structure according to claim 1, characterized in that, The inner cavity runs through the side of the shell and forms a side opening; the end of the top cover sheet is folded to form a side plate; the side plate is folded on both sides to form side folding sheets; the side plate covers the side opening, and the side folding sheets abut against the shell and are welded to the shell.

3. The case and top cover anti-deformation connecting structure according to claim 2, characterized in that, The shell has two side openings on both sides; the two ends of the top cover sheet are folded to form two side plates, and the two side plates cover the two side openings.

4. The case and top cover anti-deformation connecting structure according to claim 2, characterized in that, The top cover is provided with a pole, and the side plate is provided with an anti-explosion sheet.

5. The case and top cover anti-deformation connecting structure according to claim 3, characterized in that, The top cover sheet and the two side plates are integrally formed.

6. The case and top cover anti-deformation connecting structure according to claim 3, characterized in that, The shell includes two oppositely arranged panels, a bottom plate is arranged between the bottoms of the two panels, and the two panels and the bottom plate form the inner cavity; the top opening is formed between the tops of the two panels, the top folding sheets abut against the inner side walls of the panels and are welded to the panels.

7. The case and top cover anti-deformation connecting structure according to claim 6, characterized in that, The side openings are formed between the sides of the two panels, the side folding sheets abut against the inner side walls of the panels and are welded to the panels.

8. The case and top cover anti-deformation connecting structure according to claim 7, characterized in that, The side plate abuts against the bottom plate from top to bottom and is welded to the bottom plate.

9. The case and top cover anti-deformation connecting structure according to claim 6, wherein The two panels and the bottom plate are integrally formed.

10. A battery characterized by The shell and the top cover anti-deformation connection structure.

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