CN218351614U

CN218351614U - Waterproof structure of metal shell

Info

Publication number: CN218351614U
Application number: CN202222284846.5U
Authority: CN
Inventors: 陈兵山; 黄新华; 邓浩通
Original assignee: Dongguan Elite New Energy Co ltd
Current assignee: Dongguan Elite New Energy Co ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2023-01-20
Anticipated expiration: 2032-08-29

Abstract

The utility model discloses a metal casing's waterproof construction includes case lid and lower box, goes up and sets up first sealing member and second sealing member between case lid and the lower box and seal the processing. This metal casing's waterproof construction utilizes last case lid extrusion first sealing member and second sealing member to warp, makes first sealing member and second sealing member shutoff and blocks up the gap between case lid and the lower box, improves metal casing's waterproof performance, effectively protects the inside group battery of metal casing not to wet, and is with low costs, simple structure.

Description

Waterproof structure of metal shell

Technical Field

The utility model relates to a metal casing technical field especially discloses a metal casing's waterproof construction.

Background

With the rapid development of the society, the lithium battery industry is also following the society and steaming day by day, people have increasingly large demands on batteries, application scenes are increasingly wide, and the requirement on the waterproof performance of the batteries is also increasingly high. The battery case is generally divided into a metal case, a plastic case, and the like, and the metal case is generally used for some batteries having a relatively large volume. However, the common metal casing does not have a waterproof function, and in a humid use environment, the battery pack inside the metal casing is easily damaged after being wetted and corroded, so that the protection performance of the metal casing on the battery pack is greatly reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects and deficiencies existing in the prior art, the utility model aims to provide a waterproof structure of a metal shell.

In order to achieve the above object, the waterproof structure of the metal shell of the present invention comprises an upper box cover and a lower box body, wherein the upper box cover is provided with a step portion, the lower box body is provided with a side edge portion, and the step portion is connected with the side edge portion through screw locking; still include first sealing member and second sealing member, first sealing member sets up between step portion and side portion, and the second sealing member sets up between the lateral wall of the roof of last case lid and lower box body, but first sealing member and second sealing member all adopt elastic deformation's plastic material to make.

Specifically, the step part is formed by bending outwards along the side wall of the upper box cover, the first sealing element is fixedly installed at the bottom of the step part, and the width of the step part is equal to that of the first sealing element.

Specifically, a stopping part is arranged on one side, away from the upper box cover, of the stepped part, the stopping part is formed by bending downwards from the stepped part, and the outer side face of the first sealing element is tightly attached to the inner side face of the stopping part.

Specifically, the side edge part is formed by pressing the side wall of the lower box body outwards.

Specifically, the side edge part and the step part are correspondingly provided with a plurality of screw holes for mounting screws, and the first sealing element is provided with a plurality of through holes corresponding to the screw holes.

Specifically, the side edge part is fixedly provided with a plurality of nuts, and the plurality of nuts and the plurality of screw holes are arranged in a one-to-one correspondence mode.

Specifically, the second sealing element is fixedly arranged on the top wall of the upper box cover, and the outer side face of the second sealing element is tightly attached to the inner side wall of the upper box cover.

The utility model has the advantages that: metal casing's waterproof construction include case lid and lower box, go up and set up first sealing member and second sealing member between case lid and the lower box and carry out sealed processing. This metal casing's waterproof construction utilizes last case lid extrusion first sealing member and second sealing member to warp, makes first sealing member and second sealing member shutoff and blocks up the gap between case lid and the lower box, improves metal casing's waterproof performance, effectively protects the inside group battery of metal casing not to wet, and is with low costs, simple structure.

Drawings

Fig. 1 is a schematic perspective view of a metal shell according to the present invention;

FIG. 2 is a schematic view of the exploded structure of the present invention;

fig. 3 is a schematic sectional structure of the present invention;

fig. 4 is a schematic partial structure diagram of a in fig. 3 according to the present invention.

The reference numerals include:

1-upper box cover 2-lower box body 3-first sealing element

4-second seal 11-step 12-stop

13-screw hole 21-side edge part 22-nut

31-through hole.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying drawings, which are not intended to limit the present invention.

Referring to fig. 1 to 4, a waterproof structure of a metal shell according to the present invention includes an upper case cover 1 and a lower case body 2, the upper case cover 1 is provided with a step portion 11, the lower case body 2 is provided with a side portion 21, and the step portion 11 and the side portion 21 are connected by screw locking; the box cover further comprises a first sealing element 3 and a second sealing element 4, the first sealing element 3 is arranged between the step portion 11 and the side edge portion 21, the second sealing element 4 is arranged between the top wall of the upper box cover 1 and the side wall of the lower box body 2, and the first sealing element 3 and the second sealing element 4 are both made of elastic deformable plastic materials. In this embodiment, the first sealing member 3 and the second sealing member 4 are both waterproof foamed silica gel. When the upper box cover 1 and the lower box body 2 are locked, the side edge part 21 and the step part 11 press the first sealing member 3 to deform the first sealing member 3, and a gap between the side edge part 21 and the step part 11 is blocked to form a first waterproof barrier; the top wall of the upper box cover 1 and the side wall of the lower box body 2 extrude the second sealing element 4 to deform the second sealing element 4, so that an opening gap between the upper box cover 1 and the lower box body 2 is blocked, and a second waterproof barrier is formed.

Referring to fig. 4, the step 11 is formed by bending outward along the sidewall of the upper case cover 1, the step 11 surrounds the outer side of the upper case cover 1, the first sealing member 3 is shaped as a ring adapted to the step 11, the first sealing member 3 is fixedly mounted on the bottom of the step 11 by glue, and the width of the step 11 is equal to the width of the first sealing member 3.

Referring to fig. 4, a stop portion 12 is disposed on a side of the stepped portion 11 away from the upper case lid 1, the stop portion 12 is formed by bending downward from the stepped portion 11, and an outer side surface of the first sealing member 3 is closely attached to an inner side surface of the stop portion 12. The stopper 12 abuts against the end of the side edge 21 and encloses the first seal 3.

Referring to fig. 4, the side portion 21 is formed by pressing the side wall of the lower case 2 outward, the side portion 21 and the lower case 2 are integrally formed, and the side portion 21 and the side wall of the lower case 2 are perpendicular to each other.

Referring to fig. 4, the side portion 21 and the step portion 11 are correspondingly provided with a plurality of screw holes 13 for mounting screws, the plurality of screw holes 13 are equidistantly arranged around the periphery of the lower case 2, and the first sealing member 3 is provided with a plurality of through holes 31 corresponding to the screw holes 13.

Referring to fig. 4, a plurality of nuts 22 are fixedly disposed on the side portion 21, and the plurality of nuts 22 are disposed in one-to-one correspondence with the plurality of screw holes 13. One end of the nut 22 is embedded in the side part 21, and the other end protrudes out of the bottom of the side part 21, and the nut 22 is used for locking a screw.

Referring to fig. 4, the second sealing element 4 is fixedly disposed on the top wall of the upper case cover 1 through an adhesive, an outer side surface of the second sealing element 4 is tightly attached to an inner side wall of the upper case cover 1, the second sealing element 4 is shaped like a ring adapted to a peripheral side wall of the lower case body 2, and a width of the second sealing element 4 is greater than a thickness of the side wall of the lower case body 2.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A waterproof structure of a metal shell comprises an upper box cover (1) and a lower box body (2), wherein the upper box cover (1) is provided with a step part (11), the lower box body (2) is provided with a side edge part (21), and the step part (11) is connected with the side edge part (21) through screws in a locking manner; the method is characterized in that: the box cover further comprises a first sealing element (3) and a second sealing element (4), the first sealing element (3) is arranged between the step portion (11) and the side edge portion (21), the second sealing element (4) is arranged between the top wall of the upper box cover (1) and the side wall of the lower box body (2), and the first sealing element (3) and the second sealing element (4) are both made of elastically deformable plastic materials.

2. The waterproof structure of a metal casing according to claim 1, wherein: the step part (11) is formed by bending outwards along the side wall of the upper box cover (1), the first sealing member (3) is fixedly installed at the bottom of the step part (11), and the width of the step part (11) is equal to that of the first sealing member (3).

3. The waterproof structure of a metal case according to claim 2, wherein: a stopping part (12) is arranged on one side of the stepped part (11) far away from the upper box cover (1), the stopping part (12) is formed by bending downwards from the stepped part (11), and the outer side surface of the first sealing element (3) is tightly attached to the inner side surface of the stopping part (12).

4. The waterproof structure of a metal shell according to claim 1, wherein: the side edge part (21) is formed by pressing the side wall of the lower box body (2) outwards.

5. The waterproof structure of a metal casing according to claim 1, wherein: a plurality of screw holes (13) for mounting screws are correspondingly arranged on the side part (21) and the step part (11), and a plurality of through holes (31) corresponding to the screw holes (13) are arranged on the first sealing member (3).

6. The waterproof structure of a metal case according to claim 5, wherein: a plurality of nuts (22) are fixedly arranged on the side edge part (21), and the plurality of nuts (22) are arranged in one-to-one correspondence with the plurality of screw holes (13).

7. The waterproof structure of a metal shell according to claim 1, wherein: the second sealing element (4) is fixedly arranged on the top wall of the upper box cover (1), and the outer side surface of the second sealing element (4) is tightly attached to the inner side wall of the upper box cover (1).