CN220290926U

CN220290926U - Packaging structure for battery

Info

Publication number: CN220290926U
Application number: CN202321813122.3U
Authority: CN
Inventors: 杨德新
Original assignee: Chengdu Yunengtong New Energy Co ltd
Current assignee: Chengdu Yunengtong New Energy Co ltd
Priority date: 2023-07-11
Filing date: 2023-07-11
Publication date: 2024-01-02
Anticipated expiration: 2033-07-11

Abstract

The utility model discloses a packaging structure for a battery, which comprises a shell, wherein a copper frame is arranged at the top end of the shell, internal threads are formed on the outer side of the bottom of the shell, a sealing cover is arranged at the bottom of the shell, external threads are formed in the sealing cover, an annular sealing sheet is arranged in the sealing cover, a fixing plate is arranged in the annular sealing sheet and is arranged at the bottom end of the sealing cover, a spring is arranged at the top end of the fixing plate, a battery main body is arranged in the shell, a waterproof layer is fixedly connected to the outer side of the battery main body, and a copper cap is fixedly connected to one end of the battery main body. The packaging structure for the battery solves the problem that in the use process, as the first through hole is formed in the top of the waterproof layer, the tightness of the whole device is reduced, and moisture and the like possibly enter the battery along the through hole, so that the waterproof performance of the battery is reduced.

Description

Packaging structure for battery

Technical Field

The utility model belongs to the technical field of lithium electronic batteries, and particularly relates to a packaging structure for a battery.

Background

Lithium ion batteries are high-efficiency, lightweight rechargeable batteries that are widely used in mobile devices, electric vehicles, energy storage systems, and other power demand fields. In our daily life, the electronic product is inevitably exposed to water, so water resistance is an important consideration for ensuring the normal operation of the lithium ion battery. For this reason, the battery generally employs a material having a certain waterproof property as a waterproof layer inside the battery, and a protective case is added outside the waterproof layer to prevent the battery from directly contacting water. With the widespread use of lithium ion batteries in our lives, the need for their water repellency has become increasingly important. The normal operation of the battery is ensured, and the safety and reliability of the battery are improved.

The authorized bulletin number is: the utility model patent of CN211376722U discloses a packaging structure for a battery, which comprises a battery body, wherein the outer side of the battery body is fixedly connected with a waterproof layer, one side of the battery body is fixedly connected with a copper cap, the top of the waterproof layer is provided with a first through hole, and one side of the waterproof layer is movably connected with a first shell. The utility model has the advantages that: through setting up the waterproof layer, the outside fixedly connected with waterproof layer of battery body, one side fixedly connected with copper cap of battery body, first perforation has been seted up at the top of waterproof layer, the waterproof layer includes first coating, coating and second coating, the coating adopts the silicone grease material, the silicone grease has waterproof nature and the heat dispersion of silicone grease is good, the cost of silicone grease is also lower, adopt the silicone grease as the waterproof layer, can guarantee the waterproof nature of battery, can also prevent that the battery from radiating untimely battery overheat that leads to when charging, realized solving the overheated problem of battery.

In the in-service use, because the first through hole has been seted up at the top of waterproof layer for the leakproofness of whole device reduces, and moisture, moisture etc. probably get into inside the battery along the through hole, lead to the waterproof performance of battery to reduce the problem.

Accordingly, there is a need to provide a new packaging structure for a battery that solves the above-mentioned technical problems.

Disclosure of Invention

The utility model aims to provide a packaging structure for a battery, which solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the novel copper-clad aluminum alloy sealing device comprises a shell, wherein a copper frame is arranged at the top end of the shell, internal threads are formed in the outer side of the bottom of the shell, a sealing cover is arranged at the bottom of the shell, external threads are formed in the sealing cover, an annular sealing sheet is arranged in the sealing cover, a fixing plate is arranged in the annular sealing sheet, the fixing plate is arranged at the bottom end of the sealing cover, and a spring is arranged at the top end of the fixing plate.

Preferably, the inside of shell is provided with the battery body, the outside fixedly connected with waterproof layer of battery body, the waterproof layer sets up in the inside of shell, the one end fixedly connected with copper cap of battery body.

Preferably, the waterproof layer comprises a first wrapping layer, a pattern layer and a second wrapping layer.

Compared with the prior art, the utility model has the beneficial effects that: through making copper frame and shell integrated structure, the through-hole has been avoided having been seted up, the leakproofness of whole device has been improved, so as to ensure reliability and the security of battery in humid environment, rotatory fixed shell of internal thread and external screw thread and sealed lid, the annular sealing piece extrusion of the inside of sealed lid is in the bottom of shell and waterproof layer, make battery main part sealed in the shell, the inside spring of sealed lid makes copper cap and copper frame fully contact through extrusion battery main part, improve electric conductivity, in the current in-service use, because first through-hole has been seted up at the top of waterproof layer, make the leakproofness of whole device reduce, moisture etc. probably get into inside the battery along the through-hole, lead to the problem that waterproof performance of battery reduces.

Drawings

Fig. 1 is a schematic view of a case structure of a package structure for a battery according to the present utility model;

FIG. 2 is a schematic view of a seal cap according to the present utility model;

FIG. 3 is a cross-sectional view of the housing of the present utility model;

fig. 4 is a cross-sectional view of the waterproof layer of the present utility model.

Reference numerals in the drawings:

1. a housing; 2. a copper frame; 3. an internal thread; 4. a copper cap; 5. a battery main body; 6. a waterproof layer; 601. a first wrapping layer; 602. a layer; 603. a second wrapping layer; 7. an external thread; 8. an annular sealing sheet; 9. sealing cover; 10. a fixing plate; 11. and (3) a spring.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1, fig. 2, fig. 3, and fig. 4 in combination, fig. 1 is a schematic diagram of a housing structure of a package structure for a battery according to the present utility model; FIG. 2 is a schematic view of a seal cap according to the present utility model; FIG. 3 is a cross-sectional view of the housing of the present utility model; fig. 4 is a cross-sectional view of the waterproof layer of the present utility model. A packaging structure for battery, including shell 1, the top of shell 1 is provided with copper frame 2, and internal thread 3 has been seted up in the bottom outside of shell 1, and the bottom of shell 1 is provided with sealed lid 9, and external screw thread 7 has been seted up to sealed lid 9's inside, and sealed lid 9's inside is provided with annular seal piece 8, and annular seal piece 8's inside is provided with fixed plate 10, and fixed plate 10 sets up in sealed lid 9's bottom, and fixed plate 10's top is provided with spring 11.

In the specific implementation process, as shown in fig. 3 and 4, a battery main body 5 is disposed in the casing 1, a waterproof layer 6 is fixedly connected to the outer side of the battery main body 5, the waterproof layer 6 is disposed in the casing 1, and a copper cap 4 is fixedly connected to one end of the battery main body 5.

Referring to fig. 4, the waterproof layer 6 includes a first wrapping layer 601, a layer 602, and a second wrapping layer 603, where the first wrapping layer 601 and the second wrapping layer 603 are both made of polyethylene, and the layer 602 is made of waterproof silica gel.

It should be noted that: the shell 1 is non-conductive material, the inside of copper frame 2 is the cavity, the inner wall of cavity and the outside laminating of copper cap 4, the through-hole has been seted up at the top of waterproof layer 6, it has copper cap 4 to alternate in the through-hole, circular logical groove has been seted up to the bottom of waterproof layer 6, the through-hole has been seted up on the top of shell 1, it has copper cap 4 to alternate in the through-hole, the inside bottom of sealed lid 9 and the bottom welded fastening of fixed plate 10, the bottom of sealed lid 9 is metal material, the top of fixed plate 10 is provided with the through groove, it has spring 11 to alternate in the through groove.

The utility model provides a packaging structure for a battery, which has the following working principle:

when the waterproof layer 6 is sleeved outside the battery body 5, the waterproof layer 6 comprises a first wrapping layer 601, a layer 602 and a second wrapping layer 603, the first wrapping layer 601 and the second wrapping layer 603 are made of polypropylene, the layer 602 is made of silicone grease, the heat dissipation performance and the heat conductivity of the silicone grease are good, the battery body 5 and the waterproof layer 6 are sleeved into the shell 1 from the bottom of the shell 1, the copper cap 4 and the copper frame 2 are tightly attached, the sealing cover 9 is rotated, the external threads 7 are rotated into the internal threads 3 to fix the shell 1 and the sealing cover 9, the annular sealing sheet 8 tightly extrudes the bottom ends of the shell 1 and the waterproof layer 6, the battery body 5 is sealed inside the shell 1, the spring 11 arranged on the fixing plate 10 in the sealing cover 9 can extrude the battery body 5, the copper cap 4 at the top end of the battery body 5 is tightly attached to the copper frame 2, the spring 11, the bottom ends of the fixing plate 10 and the sealing cover 9 are made of metal materials, and the current can be transmitted, and the tightness of the device is ensured.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. A packaging structure for a battery, characterized in that: including shell (1), the top of shell (1) is provided with copper frame (2), internal thread (3) have been seted up in the bottom outside of shell (1), the bottom of shell (1) is provided with sealed lid (9), external screw thread (7) have been seted up to the inside of sealed lid (9), the inside of sealed lid (9) is provided with annular sealing piece (8), the inside of annular sealing piece (8) is provided with fixed plate (10), fixed plate (10) set up in the bottom of sealed lid (9), the top of fixed plate (10) is provided with spring (11).

2. The package structure for a battery according to claim 1, wherein: the battery pack is characterized in that a battery main body (5) is arranged in the shell (1), a waterproof layer (6) is fixedly connected to the outer side of the battery main body (5), the waterproof layer (6) is arranged in the shell (1), and a copper cap (4) is fixedly connected to one end of the battery main body (5).

3. The package structure for a battery according to claim 2, wherein: the waterproof layer (6) comprises a first wrapping layer (601), a pattern layer (602) and a second wrapping layer (603).