Rechargeable battery with multiple battery cells
By designing a multi-cell rechargeable battery and using reset components to achieve removable connection between the cap and the case, the problem of insufficient battery capacity and indesistibility of single-cell battery is solved, and the effect of battery capacity improvement and resource conservation is achieved.
Patent Information
- Application Number
- CN202422294463.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-19
AI Technical Summary
Existing rechargeable batteries are generally single-cells, which are insufficient in power and cannot be disassembled, resulting in waste of resources and inconvenient maintenance.
A multi-cell rechargeable battery is designed, and the reset component is used to control the limit steel ball movement to achieve a removable connection between the cap and the shell. Through the coordination of the limit hole and the steel ball through hole, it is convenient for the replacement and maintenance of internal parts of the battery.
It improves the battery capacity, saves part resources through removable design, reduces maintenance costs, and facilitates replacement and maintenance of damaged parts inside the battery.
Smart Images
Figure CN223245817U_ABST
Abstract
Description
Technical field:
[0001] The utility model relates to the technical field of rechargeable batteries, in particular to a multi-cell rechargeable battery. Background technology:
[0002] Currently, rechargeable batteries on the market (e.g., C-type AA rechargeable batteries) generally have a single cell and have problems such as low power. In addition, existing rechargeable batteries with built-in USB charging interfaces generally consist of an outer shell, a cell, an integrated circuit board (PCB), a plastic shell, a front cover, and a positive terminal. To protect the internal components of the battery, the outer shell and the front cover of rechargeable batteries on the market are generally configured as a non-detachable structure after assembly. However, in actual use, only the internal cell and the PCB are easily burned. Replacing or discarding a rechargeable battery simply because a single component is damaged can easily waste resources and be inconvenient to use. Therefore, a multi-cell rechargeable battery that is easy to disassemble is urgently needed. Summary of the invention:
[0003] The purpose of the utility model is to provide a multi-cell rechargeable battery to address the deficiencies in the prior art, which is convenient for disassembling and maintaining damaged cells or circuit boards inside, thereby reducing maintenance costs.
[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a multi-cell rechargeable battery, comprising a cell, a positive electrode ejector pin, a cap, a circuit board, a charging terminal assembly arranged on the circuit board, a shell, and a charging slot arranged on the top of the cap, the cell being arranged inside the shell, and there are three cells, and the three cells are evenly arranged in the shell along the axial direction, a pin socket is provided on the cap, and the bottom of the positive electrode ejector pin passes through the pin socket and is welded to the circuit board; the circuit board is clamped to the bottom of the cap and electrically connected to the cell; the charging terminal assembly is exposed through the charging slot; it also includes a reset assembly and a limiting steel ball, a limiting hole is provided on the outer side of the cap to cooperate with the limiting steel ball, and a steel ball through-hole for the limiting steel ball to pass through is provided on the shell, and the reset assembly is used to control the movement of the limiting steel ball to complete the detachable connection between the cap and the shell.
[0005] A further improvement to the above scheme is that the reset assembly includes a sleeve limiting groove, a reset sleeve, a steel ball limiting protrusion, and a reset spring, the sleeve limiting groove is arranged on the top outer wall of the shell, the reset sleeve is slidably arranged above the sleeve limiting groove, the steel ball limiting protrusion is arranged on the top inner wall of the reset sleeve, one end of the reset spring is against the side wall of the sleeve limiting groove, and the other end of the reset spring is against the side wall of the steel ball limiting protrusion; when the reset spring is in an uncompressed state, the top side wall of the sleeve limiting groove is against the steel ball limiting protrusion, and the steel ball limiting protrusion is located above the limiting hole and against the limiting steel ball.
[0006] A further improvement to the above solution is that the three battery cells are electrically connected to the circuit board via pins.
[0007] A further improvement to the above solution is that the battery cell is one of a soft-pack battery cell, a capacitor battery cell, and a steel-shell battery cell.
[0008] A further improvement to the above solution is that the housing and the positive electrode ejector pin are both made of conductive metal materials, and the cap is made of insulating plastic material.
[0009] The beneficial effects of the utility model are as follows: the utility model includes a battery cell, a positive electrode ejector pin, a cap, a circuit board, a charging terminal assembly arranged on the circuit board, a shell, and a charging slot arranged on the top of the cap, the battery cell is arranged inside the shell, and there are three battery cells, and the three battery cells are evenly arranged in the shell along the axial direction, the cap is provided with an ejector pin socket, and the bottom of the positive electrode ejector pin passes through the ejector pin socket and is welded to the circuit board; the circuit board is clamped to the bottom of the cap and is electrically connected to the battery cell; the charging terminal assembly is exposed through the charging slot; it also includes a reset assembly and a limiting steel ball, a limiting hole that cooperates with the limiting steel ball is provided on the outer side of the cap, and a steel ball through-hole for the limiting steel ball to pass through is provided on the shell, and the reset assembly is used to control the movement of the limiting steel ball to complete the detachable connection between the cap and the shell;
[0010] The utility model is provided with multiple battery cells, which can significantly improve the battery capacity compared with traditional single-cell batteries; a reset component is provided between the cap and the shell, and the reset component controls the movement of a limiting steel ball in the steel ball through-hole. When the cap is connected to the shell, the limiting steel ball cooperates with the steel ball through-hole on the shell and the limiting hole on the cap to fix the cap to the top of the shell. When a fault occurs inside the battery and maintenance or replacement of internal parts is required, the reset component controls the movement of the limiting steel ball and disengages from the limiting hole, thereby completing the disassembly of the cap and the shell, thereby replacing and maintaining damaged parts inside the rechargeable battery, which can effectively save parts resources and is easy to use. Description of the drawings:
[0011] Figure 1 It is a structural diagram of the present utility model.
[0012] Figure 2 It is a cross-sectional view of the present utility model.
[0013] Figure 3 This is a structural diagram of the reset component of the utility model.
[0014] Figure 4 This is a schematic structural diagram of the battery cell of the present utility model.
[0015] Explanation of the accompanying drawings: battery cell 1, positive electrode ejector pin 2, cap 3, charging slot 31, ejector pin socket 32, limiting hole 33, circuit board 4, charging terminal assembly 41, shell 5, steel ball through hole 51, sleeve limiting groove 52, reset assembly 6, limiting steel ball 61, reset sleeve 62, steel ball limiting protrusion 621, reset spring 63, pin 7. Specific implementation method:
[0016] The present invention will be further described below with reference to the accompanying drawings. Figure 1-4As shown, the utility model provides a multi-cell rechargeable battery, including a cell 1, a positive electrode ejector pin 2, a cap 3, a circuit board 4, a charging terminal assembly 41 arranged on the circuit board 4, a shell 5, and a charging slot 31 arranged on the top of the cap 3. The cell 1 is arranged inside the shell 5. There are three cell 1s, and the three cell 1s are evenly arranged in the shell 5 along the axial direction. The arrangement of multiple cell 1 can improve the battery capacity. At the same time, multiple cell 1 can be replaced. When a single cell 1 is damaged, it will not affect the normal use of the battery, and the use experience is improved. A ejector pin socket 32 is provided on the cap 3, and the bottom of the positive electrode ejector pin 2 passes through the ejector pin socket 32 and is welded to the circuit board 4; the circuit board 4 is snapped into the bottom of the cap 3 and is electrically connected to the cell 1; the charging terminal assembly 41 is exposed through the charging slot 31; it also includes a reset component 6, a limiting steel ball 61, and the cap 3 A limiting hole 33 is provided on the outside for cooperating with the limiting steel ball 61, and a steel ball through-hole 51 is provided on the outer shell 5 for the limiting steel ball 61 to pass through. The reset component 6 is used to control the movement of the limiting steel ball 61 to complete the detachable connection between the cap 3 and the outer shell 5. A reset component 6 is provided between the cap 3 and the outer shell 5. The reset component 6 controls the limiting steel ball 61 to move in the steel ball through-hole 51. When the cap 3 is connected to the outer shell 5, the limiting steel ball 61 cooperates with the steel ball through-hole 51 on the outer shell 5 and the limiting hole 33 on the cap 3 to fix the cap 3 to the top of the outer shell 5. When a fault occurs inside the battery and maintenance or replacement of internal parts is required, the reset component 6 controls the limiting steel ball 61 to move and disengage from the limiting hole 33, thereby completing the disassembly of the cap 3 and the outer shell 5, thereby replacing and maintaining the damaged parts inside the rechargeable battery, which can effectively save parts resources and is easy to use.
[0017] The reset assembly 6 of the present invention includes a sleeve limiting groove 52, a reset sleeve 62, a steel ball limiting protrusion 621, and a reset spring 63. The sleeve limiting groove 52 is arranged on the top outer wall of the shell 5, the reset sleeve 62 is slidably arranged above the sleeve limiting groove 52, the steel ball limiting protrusion 621 is arranged on the top inner wall of the reset sleeve 62, one end of the reset spring 63 is against the side wall of the sleeve limiting groove 52, and the other end of the reset spring 63 is against the side wall of the steel ball limiting protrusion 621; when the reset spring 63 is in an uncompressed state, the top side wall of the sleeve limiting groove 52 is against the steel ball limiting protrusion 621, and the steel ball limiting protrusion 621 is located above the limiting hole 33 and is against the limiting steel ball 61.
[0018] The three battery cells 1 of the present invention are all electrically connected to the circuit board 4 via the pins 7 .
[0019] The battery cell 1 of the present invention is one of a soft-pack battery cell 1, a capacitor battery cell 1, and a steel-shell battery cell 1. Different battery cells 1 can be replaced according to actual use needs. It is suitable for different use occasions and has strong practicality.
[0020] The shell 5 and the positive electrode ejector pin 2 of the utility model are made of conductive metal materials, and the cap 3 is made of insulating plastic material. The circuit board 4, the pin 7 and the shell 5 can be electrically connected through a wire or a conductive sheet. When in use, the shell 5 is equivalent to the negative electrode of the battery, which ensures the conductive effect while protecting the inside of the battery.
[0021] Working principle:
[0022] During assembly, the reset sleeve 62 is first put on the shell 5, and the reset sleeve 62 is compressed, and the cap 3 is placed on the shell 5, and then the limiting steel ball 61 is placed in the limiting hole 33 through the steel ball through-hole 51. At this time, the reset sleeve 62 is reset by the reset spring 63. At this time, the top side wall of the sleeve limiting groove 52 presses the steel ball limiting protrusion 621 on the reset sleeve 62 against the position of the limiting hole 33. Through the cooperation of the limiting steel ball 61 and the limiting hole 33, the connection between the cap 3 and the shell 5 is completed. During disassembly, it is only necessary to slide the reset sleeve 62 down, the steel ball limiting protrusion 621 leaves the position of the limiting hole 33, and take out the limiting steel ball 61 to complete the disassembly of the cap 3, thereby replacing and maintaining the damaged parts inside the rechargeable battery, which can effectively save parts resources and is easy to use.
[0023] Of course, the above is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.
Claims
1. A multi-cell rechargeable battery, characterized in that: The invention comprises a battery cell (1), a positive electrode ejector pin (2), a cap (3), a circuit board (4), a charging terminal assembly (41) arranged on the circuit board (4), a shell (5), and a charging slot (31) arranged on the top of the cap (3); the battery cell (1) is arranged inside the shell (5); three battery cells (1) are provided, and the three battery cells (1) are evenly arranged in the shell (5) along the axial direction; a ejector pin socket (32) is provided on the cap (3); the bottom of the positive electrode ejector pin (2) passes through the ejector pin socket (32) and is welded to the circuit board (4) The circuit board (4) is snapped onto the bottom of the cap (3) and is electrically connected to the battery cell (1); the charging terminal assembly (41) is exposed through the charging slot (31); and the battery further comprises a reset assembly (6) and a limiting steel ball (61); a limiting hole (33) cooperating with the limiting steel ball (61) is provided on the outer side of the cap (3); a steel ball through hole (51) for the limiting steel ball (61) to pass through is provided on the outer shell (5); the reset assembly (6) is used to control the movement of the limiting steel ball (61) to complete the detachable connection between the cap (3) and the outer shell (5).
2. A multi-cell rechargeable battery according to claim 1, characterized in that: The reset assembly (6) includes a sleeve limiting groove (52), a reset sleeve (62), a steel ball limiting protrusion (621), and a reset spring (63). The sleeve limiting groove (52) is arranged on the top outer wall of the housing (5), the reset sleeve (62) is slidably arranged above the sleeve limiting groove (52), the steel ball limiting protrusion (621) is arranged on the top inner wall of the reset sleeve (62), one end of the reset spring (63) is against the side wall of the sleeve limiting groove (52), and the other end of the reset spring (63) is against the side wall of the steel ball limiting protrusion (621); when the reset spring (63) is in an uncompressed state, the top side wall of the sleeve limiting groove (52) is against the steel ball limiting protrusion (621), and the steel ball limiting protrusion (621) is located above the limiting hole (33) and is against the limiting steel ball (61).
3. The multi-cell rechargeable battery according to claim 1, characterized in that: The three battery cells (1) are all electrically connected to the circuit board (4) via pins (7).
4. The multi-cell rechargeable battery according to claim 1, characterized in that: The battery core (1) is one of a soft-pack battery core (1), a capacitor battery core (1), and a steel-shell battery core (1).
5. The multi-cell rechargeable battery according to claim 1, characterized in that: The housing (5) and the positive electrode ejector pin (2) are both made of conductive metal materials, and the cap (3) is made of insulating plastic material.