Detachable opposite side electrode lithium battery
Through the detachable opposite-side electrode lithium battery structure and the fixed connection between the rubber ring and the circuit board, the problems of inconvenient disassembly and complicated welding of electronic cigarette lithium batteries are solved, the environmental protection, energy saving and safety of the battery are achieved, the adaptability is improved, and the production cost is reduced.
Patent Information
- Application Number
- CN202422461010.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-11
AI Technical Summary
Traditional electronic cigarette lithium batteries on the market are installed inside the shell and are inconvenient to disassemble, resulting in poor sustainability, waste of resources and environmental pollution. At the same time, the welding process is complicated, resulting in production losses and increased costs.
It adopts a detachable opposite-side electrode lithium battery structure, uses a fixed connection between a rubber ring and a circuit board, and combines it with a PVC film coating to achieve the detachability of the battery cell and the firmness of the packaging structure, avoiding direct damage to the battery cell, and ensuring safety through the exhaust hole.
It realizes convenient disassembly and recycling of batteries, reduces production costs, improves adaptability and safety, avoids the risk of battery explosion, and simplifies the production process.
Smart Images
Figure CN223321366U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of lithium batteries, and in particular relates to a lithium battery with detachable opposite-side electrodes. Background Art
[0002] The polymer lithium batteries (soft-pack batteries) used in traditional electronic cigarettes on the market are often installed inside the electronic cigarette shell. When the battery is used up, it is inconvenient to disassemble and cannot be recycled, resulting in poor sustainable use of electronic cigarettes on the user side, and at the same time causing waste of resources and environmental pollution.
[0003] For e-cigarette manufacturers, the process of directly installing lithium batteries inside electronic shells is cumbersome. Under existing technologies, during the process of installing and welding lithium batteries to the e-cigarette shells, there may be problems such as poor welding between copper wires and tabs, welding short circuits, and puncturing the battery under high-temperature soldering, causing leakage of soft-pack batteries, thereby causing certain production losses and increasing labor and material costs. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a detachable opposite-side electrode lithium battery with simple structure and process, the battery cell can be disassembled, replaced, recycled and reused, and the production cost is low.
[0005] To achieve the above objectives, the present invention provides the following technical solutions:
[0006] A detachable contralateral electrode lithium battery, comprising a battery cell, a steel shell, a first rubber ring, a second rubber ring, a first circuit board, a second circuit board and a PVC film;
[0007] Both ends of the steel shell are open, the battery cell is arranged in the steel shell, one end of the battery cell is provided with a first tab, and the other end of the battery cell is provided with a second tab;
[0008] The first rubber ring is engaged with an opening at one end of the steel shell, and a first groove is provided on a side of the first rubber ring away from the steel shell; the first circuit board is embedded in the first groove, and a positive terminal is provided on a side of the first circuit board away from the steel shell. A first welding pad connected to the positive terminal is provided on a side of the first circuit board facing the steel shell, and the first welding pad is welded to the first tab;
[0009] The second rubber ring is engaged with the opening at the other end of the steel shell, and a second groove is provided on a side of the second rubber ring away from the steel shell; the second circuit board is embedded in the second groove, and a negative terminal is provided on a side of the second circuit board away from the steel shell. A second welding pad connected to the negative terminal is provided on a side of the second circuit board facing the steel shell, and the second welding pad is welded to the second tab;
[0010] The PVC film is wrapped around the outside of the steel shell, the first rubber ring and the second rubber ring. The PVC film forms a first pressing edge portion on the edge of the first circuit board away from the steel shell; the PVC film forms a second pressing edge portion on the edge of the second circuit board away from the steel shell.
[0011] As a preferred solution of the present invention, a first exhaust hole is provided at the fitting position between the first circuit board and the first rubber ring.
[0012] As a preferred solution of the present invention, the first groove is a circular groove, and the outer periphery of the first circuit board is provided with a first arc edge and a first straight edge, the first arc edge is in contact with the groove wall of the first groove, and the first exhaust hole is formed between the first straight edge and the groove wall of the first groove.
[0013] As a preferred solution of the present invention, a second exhaust hole is provided at the fitting position between the second circuit board and the second rubber ring.
[0014] As a preferred solution of the present invention, the second groove is a circular groove, and the outer periphery of the second circuit board is provided with a second arc edge and a second straight edge, the second arc edge is in contact with the groove wall of the second groove, and the second exhaust hole is formed between the second straight edge and the groove wall of the second groove.
[0015] As a preferred solution of the present invention, the outer side of the first rubber ring facing the steel shell is against the open end face of the steel shell, and the middle part of the first rubber ring facing the steel shell is provided with a first boss that cooperates with the opening of the steel shell.
[0016] As a preferred solution of the present invention, the outer side of the second rubber ring facing the steel shell is against the open end face of the steel shell, and the middle part of the second rubber ring facing the steel shell is provided with a second boss that cooperates with the opening of the steel shell.
[0017] Compared with the prior art, the detachable contralateral electrode lithium battery of the present invention has the following beneficial effects:
[0018] (1) The detachable opposite-side electrode lithium battery of the present invention fixes the first circuit board and the second circuit board welded with the battery cell to the two ends of the steel shell through the first rubber ring and the second rubber ring respectively, thereby achieving a fixed connection between the rubber ring, the circuit board, the steel shell and the battery cell. At the same time, the battery body is covered with a PVC film, and the circuit board is axially pressed by the edge portion of the PVC film, so that the packaging structure of the battery is firm and reliable. Since the rubber ring and the steel shell are matched and connected, they are easy to disassemble. When the battery is exhausted, the battery cell can be disassembled, replaced, recycled and reused, which is environmentally friendly and energy-saving.
[0019] (2) Compared with the existing packaging structure of the steel shell internal battery cell fixed by rolling groove technology, the detachable opposite-side electrode lithium battery of the present invention fixes the internal battery cell and circuit board of the steel shell by rubber ring, and does not need to make a rolling groove structure on the steel shell, so it will not cause damage to the battery cell body. In addition, it is convenient to disassemble and rework, the structural process is simple, and the technology and equipment required for production are low, which reduces the equipment maintenance cost and training labor cost;
[0020] (3) The detachable opposite-side electrode lithium battery of the present invention has strong adaptability. Since the steel shell has no direct effect on the fixation of the battery core, it can be adapted to most electronic cigarette lithium batteries on the market by adjusting the diameter and height of the steel shell.
[0021] (4) The detachable opposite-side electrode lithium battery of the present invention has strong safety. Since the exhaust hole is provided at the joint of the circuit board and the rubber ring, the inside of the steel shell is connected to the outside world, thereby preventing accidents such as explosion caused by excessive air pressure inside the steel shell. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments are briefly introduced below.
[0023] Figure 1 An assembly diagram of a detachable contralateral electrode lithium battery provided in an embodiment of the present utility model;
[0024] Figure 2 An exploded view of a detachable contralateral electrode lithium battery provided by an embodiment of the present utility model;
[0025] Figure 3 Another exploded view of the detachable opposite-side electrode lithium battery provided by an embodiment of the present invention;
[0026] Figure 4 A cross-sectional view of a detachable opposite-side electrode lithium battery provided in an embodiment of the present invention.
[0027] Markings in the figure:
[0028] Battery cell 1; first electrode tab 11; second electrode tab 12; steel shell 2; first rubber ring 3; first groove 31; first boss 32; second rubber ring 4; second groove 41; second boss 42; first circuit board 5; positive terminal 51; first solder pad 52; first arc edge 53; first straight edge 54; second circuit board 6; negative terminal 61; second solder pad 62; second arc edge 63; second straight edge 64; PVC film 7; first pressure edge 71; second pressure edge 72; first exhaust hole 8; second exhaust hole 9. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0030] like Figures 1 to 4 As shown, a detachable opposite-side electrode lithium battery proposed in an embodiment of the present invention includes a battery cell 1, a steel shell 2, a first rubber ring 3, a second rubber ring 4, a first circuit board 5, a second circuit board 6 and a PVC film 7; the steel shell 2 has openings at both ends, the battery cell 1 is arranged in the steel shell 2, one end of the battery cell 1 is provided with a first pole ear 11, and the other end of the battery cell 1 is provided with a second pole ear 12; the first rubber ring 3 is matched with the opening at one end of the steel shell 2, and the first rubber ring 3 is provided with a first groove 31 on a side away from the steel shell 2; the first circuit board 5 is embedded in the first groove 31, and the first circuit board 5 is provided with a positive terminal 51 on a side away from the steel shell 2, and the first circuit board 5 is provided with a first welding pad 52 connected to the positive terminal 51 on a side facing the steel shell 2, and the first welding pad 52 is connected to the The first electrode tab 11 is welded; the second rubber ring 4 is matingly connected to the opening at the other end of the steel shell 2, and a second groove 41 is provided on the side of the second rubber ring 4 away from the steel shell 2; the second circuit board 6 is embedded in the second groove 41, and a negative terminal 61 is provided on the side of the second circuit board 6 away from the steel shell 2, and a second welding pad 62 connected to the negative terminal 61 is provided on the side of the second circuit board 6 facing the steel shell 2, and the second welding pad 62 is welded to the second electrode tab 12; the PVC film 7 is covered on the outside of the steel shell 2, the first rubber ring 3 and the second rubber ring 4, and a first pressing edge portion 71 is formed on the edge of the first circuit board 5 away from the steel shell 2 of the PVC film 7; a second pressing edge portion 72 is formed on the edge of the second circuit board 6 away from the steel shell 2.
[0031] Therefore, according to the detachable opposite-side electrode lithium battery of the embodiment of the present invention, the first circuit board 5 and the second circuit board 6 welded with the battery cell 1 are fixed to the two ends of the steel shell 2 by the first rubber ring 3 and the second rubber ring 4, respectively, to achieve a fixed connection between the rubber ring, the circuit board, the steel shell 2 and the battery cell 1. At the same time, combined with the covering of the battery body by the PVC film 7, and the axial pressing of the circuit board by the pressure edge portion of the PVC film 7, the packaging structure of the battery is firm and reliable; since the first rubber ring 3 and the steel shell 2 and the second rubber ring 4 and the steel shell 2 are all matched and connected, disassembly is convenient. When the battery power is used up, the battery cell 1 can be disassembled, replaced, recycled and reused, which is environmentally friendly and energy-saving; secondly, the detachable Compared with the existing packaging structure on the market that fixes the battery core 1 inside the steel shell 2 through the rolling groove technology, the packaging structure of the detachable opposite-side electrode lithium battery is different from the existing packaging structure on the market that fixes the battery core 1 inside the steel shell 2 through the rubber ring. There is no need to make a rolling groove structure on the steel shell 2, so it will not cause damage to the main body of the battery core 1. In addition, it is convenient to disassemble and rework, the structural process is simple, and the technology and equipment required for production are low, which reduces the equipment maintenance cost and training labor cost. In addition, the detachable opposite-side electrode lithium battery has strong adaptability. Since the steel shell 2 has no direct effect on the fixation of the battery core 1, it can be adapted to the vast majority of electronic cigarette lithium batteries on the market by adjusting the diameter and height of the steel shell 2.
[0032] Illustratively, a first exhaust hole 8 is provided at the joint between the first circuit board 5 and the first rubber ring 3, thereby connecting the interior of the steel shell 2 with the outside world, preventing accidents such as explosions caused by excessive air pressure inside the steel shell 2, and providing greater safety.
[0033] Exemplarily, the first groove 31 is a circular groove, and the outer periphery of the first circuit board 5 is provided with a first arc edge portion 53 and a first straight edge portion 54. The first arc edge portion 53 fits tightly with the groove wall of the first groove 31 to achieve a fixed connection between the first circuit board 5 and the first rubber ring 3; the first exhaust hole 8 is formed between the first straight edge portion 54 and the groove wall of the first groove 31 to meet the need for a conductive state between the interior of the steel shell 2 and the outside world. It should also be noted that the first exhaust hole 8 is not completely covered by the first pressure edge portion 71 to ensure that the exhaust of the first exhaust hole 8 is unobstructed. Of course, even if the first exhaust hole 8 is completely covered by the first pressure edge portion 71, the air pressure inside the steel shell 2 can lift the first pressure edge portion 71, open the first exhaust hole 8, and achieve exhaust and heat dissipation.
[0034] Illustratively, a second exhaust hole 9 is provided at the joint between the second circuit board 6 and the second rubber ring 4, thereby connecting the interior of the steel shell 2 with the outside world, preventing accidents such as explosions caused by excessive air pressure inside the steel shell 2, and providing greater safety.
[0035] Exemplarily, the second groove 41 is a circular groove, and the outer periphery of the second circuit board 6 is provided with a second arc edge portion 63 and a second straight edge portion 64. The second arc edge portion 63 fits tightly with the groove wall of the second groove 41 to achieve a fixed connection between the first circuit board 5 and the first rubber ring 3; the second straight edge portion 64 and the groove wall of the second groove 41 form a second exhaust hole 9 to meet the requirement of forming a conductive state between the interior of the steel shell 2 and the outside world. It should also be noted that the second exhaust hole 9 is not completely covered by the second pressure edge portion 72 to ensure that the exhaust of the second exhaust hole 9 is unobstructed. Of course, even if the second exhaust hole 9 is completely covered by the second pressure edge portion 72, the air pressure inside the steel shell 2 can lift the second pressure edge portion 72, open the second exhaust hole 9, and achieve exhaust and heat dissipation.
[0036] Exemplarily, the outer side of the first rubber ring 3 facing the steel shell 2 abuts against the open end face of the steel shell 2 to ensure that the first rubber ring 3 is accurately assembled in place; the middle part of the first rubber ring 3 facing the steel shell 2 is provided with a first boss 32 that is matched with the opening of the steel shell 2, and the outer periphery of the first boss 32 can fit tightly with the inner wall of the steel shell 2 to achieve a fixed connection between the first rubber ring 3 and the steel shell 2.
[0037] Exemplarily, the outer side of the second rubber ring 4 facing the steel shell 2 abuts against the open end face of the steel shell 2 to ensure that the second rubber ring 4 is accurately assembled in place; the middle part of the second rubber ring 4 facing the steel shell 2 is provided with a second boss 42 that is matched with the opening of the steel shell 2, and the outer periphery of the second boss 42 can fit tightly with the inner wall of the steel shell 2 to achieve a fixed connection between the second rubber ring 4 and the steel shell 2.
[0038] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.
[0039] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.
Claims
1. A detachable opposite-side electrode lithium battery, characterized in that: It includes a battery cell, a steel shell, a first rubber ring, a second rubber ring, a first circuit board, a second circuit board and a PVC film; Both ends of the steel shell are open, the battery cell is arranged in the steel shell, one end of the battery cell is provided with a first tab, and the other end of the battery cell is provided with a second tab; The first rubber ring is engaged with an opening at one end of the steel shell, and a first groove is provided on a side of the first rubber ring away from the steel shell; the first circuit board is embedded in the first groove, and a positive terminal is provided on a side of the first circuit board away from the steel shell. A first welding pad connected to the positive terminal is provided on a side of the first circuit board facing the steel shell, and the first welding pad is welded to the first tab; The second rubber ring is engaged with the opening at the other end of the steel shell, and a second groove is provided on a side of the second rubber ring away from the steel shell; the second circuit board is embedded in the second groove, and a negative terminal is provided on a side of the second circuit board away from the steel shell. A second welding pad connected to the negative terminal is provided on a side of the second circuit board facing the steel shell, and the second welding pad is welded to the second tab; The PVC film is wrapped around the outside of the steel shell, the first rubber ring and the second rubber ring. The PVC film forms a first pressing edge portion on the edge of the first circuit board away from the steel shell; the PVC film forms a second pressing edge portion on the edge of the second circuit board away from the steel shell.
2. The detachable counter-electrode lithium battery according to claim 1, characterized in that: A first exhaust hole is provided at the joint between the first circuit board and the first rubber ring.
3. The detachable counter-electrode lithium battery according to claim 2, characterized in that: The first groove is a circular groove, and the outer periphery of the first circuit board is provided with a first arc edge and a first straight edge. The first arc edge is in contact with the groove wall of the first groove, and the first exhaust hole is formed between the first straight edge and the groove wall of the first groove.
4. The detachable counter-electrode lithium battery according to claim 1, characterized in that: A second exhaust hole is provided at the joint between the second circuit board and the second rubber ring.
5. The detachable counter-electrode lithium battery according to claim 4, characterized in that: The second groove is a circular groove, and the outer periphery of the second circuit board is provided with a second arc edge and a second straight edge. The second arc edge is in contact with the groove wall of the second groove, and the second exhaust hole is formed between the second straight edge and the groove wall of the second groove.
6. A detachable counter-electrode lithium battery according to any one of claims 1 to 5, characterized in that: The outer side of the first rubber ring facing the steel shell abuts against the open end surface of the steel shell, and the middle part of the first rubber ring facing the steel shell is provided with a first boss that cooperates with the opening of the steel shell.
7. A detachable counter-electrode lithium battery according to any one of claims 1 to 5, characterized in that: The outer side of the second rubber ring facing the steel shell abuts against the open end surface of the steel shell, and the middle part of the second rubber ring facing the steel shell is provided with a second boss that cooperates with the opening of the steel shell.