Novel rechargeable battery with protection function

Abstract

The invention relates to the technical field of batteries, in particular to a novel rechargeable battery with protection, which comprises a shell, the positive electrode end of the shell is provided with an opening, one end, close to the opening, of the shell is provided with an inward concave ring groove, and the opening of the shell is fixedly clamped with a lantern ring through the ring groove. An upper fixing ring and a lower fixing ring are integrally formed at the upper end and the lower end of the lantern ring respectively, a functional assembly extending upwards is movably arranged on the inner side of the lantern ring in a sleeving mode, an abutting ring is integrally formed on the end face of the periphery of the lower end of the lantern ring, the upper end of the abutting ring movably abuts against the lower end of the annular groove, and the upper end of the abutting ring is movably connected with the lower end of the annular groove in an abutting mode. The defects that in the prior art, a module additionally arranged on a positive electrode and a connecting structure between the module and a battery shell are poor in sealing performance, existing procedures are complex, and cost is high are overcome.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to a new type of rechargeable battery with protection. Background Art

[0002] In order to improve the functionality of existing AA and AAA batteries, additional functional modules are often installed at the positive end of the batteries. In the prior art, for example, a rechargeable battery proposed in Chinese Patent Application No. "202123178452.3" is a functional battery with a rechargeable module installed at the positive end, enabling the battery to be recharged and reused.

[0003] However, for the functional batteries such as those exemplified above, the module installed at the positive electrode and the battery housing have a split sleeve structure, so that they need to be sleeved and installed layer by layer during production. This structure not only reduces the structural strength and sealing effect of the battery, but also makes the space occupied by the module relatively large, reducing the volume of the battery cell, and thus resulting in a decrease in battery capacity. Therefore, a new type of integrated functional battery structure is needed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art, such as poor sealing, complicated processes, and large volume caused by the split sleeve structure between the module and the battery housing, and to propose a new type of rechargeable battery with protection.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] Design a new type of rechargeable battery with protection, including a housing. An opening is provided at the positive end of the housing. A ring groove is recessed inward at one end of the housing close to the opening. A collar is fixedly clamped to the opening of the housing through the ring groove. An upper fixing ring and a lower fixing ring are integrally formed at the upper and lower ends of the collar respectively. A functional component extending upward is movably sleeved inside the collar.

[0007] Preferably, an abutting ring is integrally formed on the outer peripheral end face at the lower end of the collar, and the upper end of the abutting ring is movably abutted against the lower end of the ring groove.

[0008] Preferably, an internal contact piece is movably sleeved inside the collar. A placement groove is formed on the upper end face of the internal contact piece, and the lower end of the functional component is movably placed inside the placement groove.

[0009] Preferably, contact protrusions are integrally formed at both the upper and lower ends of the internal contact piece, and the output end of the functional component is movably abutted against the contact protrusions.

[0010] Preferably, the upper fixing ring is a flat structure with a straight shape, and the lower fixing ring is a Z-shaped structure.

[0011] Preferably, the functional component includes a PCB sleeved inside the collar, an external contact piece is attached to the upper end of the PCB, and the input end of the PCB is electrically connected to the external contact piece.

[0012] Preferably, the input end of the PCB is electrically connected to a charging interface that penetrates above the external contact piece.

[0013] A novel rechargeable battery with protection proposed by the present invention has the beneficial effects that:

[0014] Through the mutual cooperation of the arranged annular groove, collar, and abutting ring, it is convenient for snap - on installation, making production and assembly more convenient, reducing production costs. At the same time, the collar is used to achieve a sealing effect with the outer shell, reducing the intrusion of water vapor.

[0015] Through the integrated structure design of the arranged collar, upper fixing ring, and lower fixing ring, it can be used to place existing functional components and be in close contact with the outer surface of the functional components to achieve a sealing effect between the functional components, improving the overall life of the battery, reducing space occupation, increasing the volume of the battery core, and thus increasing the capacity of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a perspective structure diagram of the main body of a novel rechargeable battery with protection proposed by the present invention;

[0017] Figure 2 It is an exploded disassembly structure diagram of the main body of a novel rechargeable battery with protection proposed by the present invention;

[0018] Figure 3 It is a sectional structure diagram of the main body of a novel rechargeable battery with protection proposed by the present invention;

[0019] Figure 4 is Figure 3 an enlarged structure diagram of area A in

[0020] Figure 5 It is a structure diagram of an embodiment with a charging interface of a novel rechargeable battery with protection proposed by the present invention;

[0021] Figure 6 It is a protection step - down output circuit diagram of a novel rechargeable battery with protection proposed by the present invention;

[0022] Figure 7 It is a protection step - up output circuit diagram of a novel rechargeable battery with protection proposed by the present invention;

[0023] Figure 8This is a protection direct output circuit diagram of a new type of rechargeable battery proposed by the present invention.

[0024] In the figure: 1. Outer shell; 101. Ring groove; 2. Collar; 201. Abutting ring; 202. Upper fixing ring; 203. Lower fixing ring; 3. Internal contact piece; 301. Contact protrusion; 4. PCB; 5. External contact piece; 501. Charging interface. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Refer to Figures 1-8 , a new type of rechargeable battery with protection, including an outer shell 1. There is an opening at the positive end of the outer shell 1. A ring groove 101 is recessed inward at one end of the outer shell 1 close to the opening. A collar 2 is fixedly clamped at the opening of the outer shell 1 through the ring groove 101. An upper fixing ring 202 and a lower fixing ring 203 are integrally formed at the upper and lower ends of the collar 2 respectively. A functional component extending upward is movably sleeved inside the collar 2. To improve the sealing effect, the collar 2, the upper fixing ring 202, and the lower fixing ring 203 can be made of elastic materials such as rubber or high-elastic plastic. The ring groove 101 can be processed by stamping to reduce production costs.

[0027] An abutting ring 201 is integrally formed on the outer peripheral end face at the lower end of the collar 2. The upper end of the abutting ring 201 is movably abutted against the lower end of the ring groove 101, playing the role of an abutting buckle to improve the fixing strength. Cooperating with the battery cell structure inside the outer shell, the lower fixing ring 203 abuts against the battery cell to prevent it from entering downward, and the abutting ring 201 prevents the collar 2 from moving upward, so as to play a fixing role. Therefore, the position of the ring groove 101 can be adjusted according to requirements during processing, improving flexibility and adaptability.

[0028] An internal contact piece 3 is movably sleeved inside the collar 2. A placement groove is opened on the upper end face of the internal contact piece 3. The lower end of the functional component is movably placed inside the placement groove, playing the role of electrical conduction between the functional component and the battery cell, improving stability and sealing performance.

[0029] Contact protrusions 301 are integrally formed at both the upper and lower ends of the internal contact piece 3. The output end of the functional component is movably abutted against the contact protrusions 301 to improve the contact effect.

[0030] The upper fixing ring 202 is a flat structure with a straight shape, and the lower fixing ring 203 is a Z-shaped structure. The upper fixing ring 202 plays the role of closely fitting on the outer side of the upper end, and the lower fixing ring 203 plays the role of cooperation between the internal battery cell and the functional component.

[0031] The functional components include a PCB 4 sleeved inside the collar 2. An external contact piece 5 is attached to the upper end of the PCB 4, and the input end of the PCB 4 is electrically connected to the external contact piece 5. A voltage regulating structure in the prior art can be installed on the PCB 4 to achieve a voltage regulating effect and improve functionality.

[0032] Reference Figure 5 , here is the content of the embodiment with the charging interface 501. The input end of the PCB 4 is electrically connected to a charging interface 501 that penetrates above the external contact piece 5. A flexible sealing pad is abutted between the charging interface 501 and the external contact piece 5 to improve the sealing effect.

[0033] The following are specific example settings of the PCB 4:

[0034] Reference Figure 6 , here is the protective step-down output circuit diagram, which has a protective step-down effect. The set NTC0402 can sense temperature with high precision in the ambient temperature range of -40°C to +125°C, improving the safety of the circuit, and an LED lighting element is provided to play a lighting prompt role;

[0035] Reference Figure 7 , here is the protective boost output circuit diagram, which has a protective boost effect. Through the ETA6093 power management chip therein, effects such as no-load and short-circuit protection can be achieved, playing a role in boost control and safety protection;

[0036] Reference Figure 8 , here is the protective direct output circuit diagram, which has the effect of directly outputting electrical energy and safety protection;

[0037] In the above three groups of examples, the charging interface 501 can be electrically connected through a management chip to play a role in charging and extending battery life.

[0038] Working method; during work, the collar 2 is snapped into the housing 1 and pressed down forcefully, so that the abutting ring 201 is snapped into the lower end of the ring groove 101, and the installation is completed at this time;

[0039] The integrated structural design of the set collar 2, upper fixing ring 202, and lower fixing ring 203 enables the placement of existing functional components and makes close contact with the outer surface of the functional components to achieve a sealing effect between the functional components, improving the overall life of the battery.

[0040] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A new type of rechargeable battery with protection, comprising a housing (1), characterized in that: The positive extreme of the housing (1) is provided with an opening. One end of the housing (1) close to the opening is provided with an inwardly recessed annular groove (101). A collar (2) is fixedly clamped to the opening of the housing (1) through the annular groove (101). Upper and lower fixing rings (202) and (203) are integrally formed at the upper and lower ends of the collar (2) respectively. A functional component extending upward is movably sleeved inside the collar (2).

2. A novel rechargeable battery with protection according to claim 1, wherein: An abutting ring (201) is integrally formed on the outer peripheral end face at the lower end of the collar (2). The upper end of the abutting ring (201) is movably abutted against the lower end of the annular groove (101).

3. A novel rechargeable battery with protection according to claim 1, characterized in that: An internal contact piece (3) is movably sleeved inside the collar (2). A placement groove is formed on the upper end face of the internal contact piece (3). The lower end of the functional component is movably placed inside the placement groove.

4. A novel rechargeable battery with protection according to claim 3, characterized in that: Contact protrusions (301) are integrally formed at both the upper and lower ends of the internal contact piece (3). The output end of the functional component is movably abutted against the contact protrusions (301).

5. A novel rechargeable battery with protection according to claim 1, characterized in that: The upper fixing ring (202) is of a flat structure in the shape of a straight line, and the lower fixing ring (203) is of a Z-shaped structure.

6. A novel rechargeable battery with protection according to claim 1, characterized in that: The functional component includes a PCB (4) sleeved inside the collar (2). An external contact piece (5) is attached to the upper end of the PCB (4). The input end of the PCB (4) is electrically connected to the external contact piece (5).

7. A novel rechargeable battery with protection according to claim 6, characterized in that: The input end of the PCB (4) is electrically connected to a charging interface (501) penetrating above the external contact piece (5).

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