An assembled structure of an aluminum shell polymer mobile phone battery

CN224773975UActive Publication Date: 2026-09-18SHENZHEN NUOJA TECH IND CO LTD
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Patent Information

Application Number
CN202521666358.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-06
Publication Date
2026-09-18
Estimated Expiration
2035-08-06

AI Technical Summary

Technical Problem

普通铝塑膜包裹,缺乏有效的机械防护结构,旧电池在丢弃后容易受损破裂破损,故市面上也存在铝壳手机电池,但是传统手机电池的前盖直接盖置于铝壳上,通过遮光胶层进行密封,并且前盖的外侧宽度略大于铝壳的宽度,由于宽度差导致前盖于铝壳之间存在有边沿,非专业用户能够抠住边沿轻易取下前盖进而打开电池腔体,容易导致电芯泄漏造成毒性危害与环境污染

Benefits of technology

[0009] The beneficial effects of this utility model are as follows: By setting an anti-tamper structure and ensuring that the outer contour of the front cover matches the outer contour of the top of the aluminum shell, the front cover can be prevented from prying directly out of the aluminum shell, increasing the difficulty of disassembly for non-professional users and preventing toxic hazards and environmental pollution caused by cell leakage due to unauthorized disassembly. By setting a sealing strip in the limiting cavity, even if a gap is created between the front cover and the aluminum shell when a non-professional user attempts to disassemble, a sealing effect can still be provided, preventing the leakage of harmful gases caused by the gap from causing harm.

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Abstract

The utility model discloses an aluminum shell polymer mobile phone battery assembly structure, including aluminum shell, electric core, protection board, front cover, the aluminum shell top opening, the electric core is loaded into the aluminum shell, the electric core top is provided with anode ear and cathode ear, be provided with first nickel band and second nickel band on the protection board, the first nickel band is connected with anode ear, the second nickel band is connected with cathode ear, the outer contour of front cover is consistent with the outer contour of aluminum shell top, lacks the rim to supply the power, increases the difficulty of barehanded disassembly, the bottom of front cover extends down and forms fixed part in the position of being close to the edge, the fixed part is sleeved with sealing rubber strip, the sealing rubber strip is close to aluminum shell inner wall, be provided with anti -disassembly structure between front cover and aluminum shell, the anti -disassembly structure includes setting the limiting sheet on the aluminum shell and setting the abutment board on the fixed part, the abutment board and front cover form the limiting cavity, avoid front cover to be directly pulled out, avoid the leakage of electric core to cause the toxicity harm and environmental pollution.
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Description

Technical Field

[0001] This utility model relates to the field of mobile phone batteries, and in particular to an aluminum-cased polymer mobile phone battery assembly structure. Background Technology

[0002] With the rapid popularization and continuous functional upgrades of mobile electronic devices, portable electronic products such as mobile phones and tablets have become indispensable necessities in people's daily lives. The core power source of these devices—the battery—has its performance and safety directly affecting the overall performance of the device and the user experience. Ordinary aluminum-plastic film wrapping lacks an effective mechanical protection structure, and old batteries are easily damaged or broken after disposal. Therefore, aluminum-cased mobile phone batteries also exist on the market. However, the front cover of traditional mobile phone batteries is directly placed on the aluminum shell and sealed with a light-shielding adhesive layer. Moreover, the outer width of the front cover is slightly larger than the width of the aluminum shell. Due to the width difference, there is an edge between the front cover and the aluminum shell. Non-professional users can easily remove the front cover by prying at the edge and open the battery cavity, which can easily lead to cell leakage, causing toxic hazards and environmental pollution. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an aluminum-cased polymer mobile phone battery assembly structure.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: an aluminum-cased polymer mobile phone battery assembly structure, comprising an aluminum casing, a battery cell, a protection board, and a front cover. The top of the aluminum casing is open, and the battery cell is installed inside the aluminum casing. The top of the battery cell is provided with an anode lug and a cathode lug. The protection board is provided with a first nickel strip and a second nickel strip. The first nickel strip is connected to the anode lug, and the second nickel strip is connected to the cathode lug. The outer contour of the front cover is consistent with the outer contour of the top of the aluminum casing. The bottom of the front cover extends downward near the edge to form a fixing part. A sealing strip is fitted on the fixing part and is tightly attached to the inner wall of the aluminum casing. An anti-tamper structure is provided between the front cover and the aluminum casing. The anti-tamper structure includes a limiting piece provided on the aluminum casing and a stop plate provided on the fixing part. A limiting cavity is formed between the stop plate and the front cover.

[0005] Furthermore, there are two limiting pieces, which are respectively disposed on the inner sides of the aluminum shell. The limiting piece includes a connecting part and a locking part that is inclined towards the inner side of the aluminum shell.

[0006] Furthermore, the length of the limiting piece is less than the height of the limiting cavity.

[0007] Furthermore, there are two abutments, which are respectively set on the left and right sides of the outer side of the fixing part. After the top edge of the aluminum shell is placed into the limiting cavity, the locking part is located in the limiting cavity directly above the abutment.

[0008] Furthermore, the bottom outer side of the sealing strip is chamfered to form a guide surface.

[0009] The beneficial effects of this utility model are as follows: By setting an anti-tamper structure and ensuring that the outer contour of the front cover matches the outer contour of the top of the aluminum shell, the front cover can be prevented from prying directly out of the aluminum shell, increasing the difficulty of disassembly for non-professional users and preventing toxic hazards and environmental pollution caused by cell leakage due to unauthorized disassembly. By setting a sealing strip in the limiting cavity, even if a gap is created between the front cover and the aluminum shell when a non-professional user attempts to disassemble, a sealing effect can still be provided, preventing the leakage of harmful gases caused by the gap from causing harm. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0011] Figure 2 This is an exploded view of the present invention.

[0012] Figure 3 This is a schematic diagram of the anti-disassembly structure.

[0013] Figure 4 This is a schematic diagram of the front cover.

[0014] In the diagram: 1. Aluminum shell; 2. Front cover; 21. Fixing part; 22. Backing plate; 23. Limiting cavity; 3. Battery cell; 31. Anode lug; 32. Cathode lug; 41. First nickel strip; 42. Second nickel strip; 5. Limiting piece; 51. Connecting part; 52. Locking part; 6. Sealing strip. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Example: An aluminum-cased polymer mobile phone battery assembly structure includes an aluminum casing 1, a battery cell 3, a protection plate 4, and a front cover 2. The aluminum casing 1 has an opening at the top, and the battery cell 3 is installed inside the aluminum casing 1. The top of the battery cell 3 is provided with an anode lug 31 and a cathode lug 32. The protection plate 4 is provided with a first nickel strip 41 and a second nickel strip 42. The first nickel strip 41 is welded to the anode lug 31, and the second nickel strip 42 is welded to the cathode lug 32. This is a conventional structure in the art. In this embodiment, the outer contour of the front cover 2 is consistent with the outer contour of the top of the aluminum casing 1. There is no edge between the front cover 2 and the aluminum casing 1 for applying force, increasing the difficulty of tool-free disassembly. The bottom of the front cover 2 extends downward near the edge to form a fixing part 11. A sealing strip 6 is fitted on the fixing part 11. After installation, the sealing strip 6 is tightly attached to the inner wall of the aluminum casing. An anti-disassembly structure is provided between the front cover 2 and the aluminum shell 1. The anti-disassembly structure includes a limiting piece 5 on the aluminum shell 1 and a stop plate 12 on the fixing part 11. The stop plate 12 and the front cover 1 form a limiting cavity 13. After installation, the limiting piece 5 is located in the limiting cavity 13. When the front cover 2 is pulled up, the stop plate 12 abuts against the limiting piece 5 to prevent the front cover 2 from being pulled out, increasing the difficulty of disassembly for non-professional users and avoiding toxic hazards and environmental pollution caused by unauthorized disassembly by non-professional users. Although the anti-disassembly structure can prevent the front cover 2 from being completely pulled out, a gap may be generated between the front cover 2 and the aluminum shell 1 when attempting to disassemble. The design of the sealing strip 6 ensures that even when a gap is generated between the front cover 2 and the aluminum shell 1, it can provide an effective sealing effect to prevent the leakage of internal harmful gases. This design is crucial for protecting users from harmful gas hazards.

[0017] Furthermore, there are two limiting pieces 5, which are welded to the inner sides of the aluminum shell 1 respectively. The limiting piece includes a connecting part 51 and a locking part 52 that is inclined to the inside of the aluminum shell. When the front cover 2 is pulled out, the locking part 52 limits the abutment plate 12 to prevent the front cover 2 from being pulled out directly, thus increasing the difficulty of unauthorized disassembly.

[0018] Furthermore, the length of the limiting piece 5 is less than the height of the limiting cavity 13. There are two abutment plates 12, which are respectively set on the left and right sides of the outer side of the fixing part. During installation, the abutment plate 12 can push the locking part 52 to elastically deflect outward until the locking part 52 is located above the abutment plate, and the locking part 52 returns to its original position in the limiting cavity 13 above the abutment plate 12.

[0019] Furthermore, the bottom outer side of the sealing strip 6 is chamfered to form a guide surface, which facilitates installation.

[0020] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An aluminum-cased polymer mobile phone battery assembly structure, comprising an aluminum casing, a battery cell, a protection board, and a front cover, wherein the top of the aluminum casing is open, the battery cell is installed inside the aluminum casing, the top of the battery cell is provided with an anode lug and a cathode lug, the protection board is provided with a first nickel strip and a second nickel strip, the first nickel strip is connected to the anode lug, and the second nickel strip is connected to the cathode lug, characterized in that... The outer contour of the front cover is consistent with the outer contour of the top of the aluminum shell. The bottom of the front cover extends downward near the edge to form a fixing part. A sealing strip is fitted on the fixing part and the sealing strip is in close contact with the inner wall of the aluminum shell. An anti-disassembly structure is provided between the front cover and the aluminum shell. The anti-disassembly structure includes a limiting piece on the aluminum shell and a stop plate on the fixing part. A limiting cavity is formed between the stop plate and the front cover.

2. The assembled structure of an aluminum cell phone battery of claim 1, wherein There are two limiting pieces, which are respectively disposed on the inner sides of the aluminum shell. The limiting piece includes a connecting part and a locking part that is inclined towards the inner side of the aluminum shell.

3. The assembled structure of an aluminum cell phone battery of claim 2, wherein The length of the limiting piece is less than the height of the limiting cavity.

4. The assembled structure of an aluminum cell phone battery of claim 3, wherein There are two abutments, which are respectively set on the left and right sides of the outside of the fixing part. After the top edge of the aluminum shell is placed into the limiting cavity, the locking part is located in the limiting cavity directly above the abutment.

5. The assembled structure of an aluminum cell phone battery of claim 4, wherein the aluminum cell phone battery is characterized by The bottom outer side of the sealing strip has a chamfer to form a guide surface.