Self-protection rechargeable single battery

Abstract

The utility model discloses a self-protection rechargeable single battery which comprises a barrel-shaped steel shell, a capacitive cell arranged in the steel shell, and a cap arranged at an opening of the steel shell, the cap comprises a circular-plate-shaped supporting piece, a sealing ring film arranged between the supporting piece and the capacitive battery cell, and a protection control circuit assembly attached to the inner side surface of the supporting piece. The capacitive battery core is arranged in the steel shell, the battery core can be charged and discharged, and the steel shell has better plasticity than an aluminum shell, so that the packaging sealing performance is better; furthermore, an internal space surrounded by a sealing ring film can be arranged above the inner side of the girdling, a protection control circuit assembly is arranged in the space, and the positive and negative electrodes of the battery cell are communicated with the positive and negative electrodes of the single battery through the protection control circuit assembly, so that the single battery can be repeatedly charged and discharged and can be safely used; therefore, the single-cell battery which can be charged and discharged and can be safely used is formed.

Description

Technical Field

[0001] This utility model relates to a single-cell battery, and more particularly to a self-protected rechargeable single-cell battery. Background Technology

[0002] Existing batteries typically manufacture individual cells, then combine multiple cells with a control circuit board and wiring connections to form a multi-cell battery, creating a rechargeable battery for electronic products or a rechargeable battery pack for other electrical appliances or devices. In this type of battery or battery pack, the charging and discharging process is controlled by the control circuit board during use or charging to prevent overcharging. When a single cell malfunctions, the control circuit board cannot protect or troubleshoot it, easily leading to accidental cell damage and subsequent failure of the entire battery or battery pack. Furthermore, these battery packs or batteries can only be used with devices of corresponding specifications. Because individual cells lack charging and discharging control circuits, they cannot be safely charged independently. This results in the current situation where single-cell batteries cannot be recharged after depletion, leading to waste of battery cells. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a self-protected rechargeable single-cell battery with a protection control circuit so that it can be repeatedly charged and discharged and can be used safely.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a self-protected rechargeable single-cell battery, which includes a cylindrical steel shell, a capacitor cell disposed inside the steel shell, and a cap disposed at the opening of the steel shell. The cap includes a circular plate-shaped support member, a sealing ring film disposed between the support member and the capacitor cell, and a protection control circuit assembly attached to the inner surface of the support member.

[0005] As an improvement to the technical solution of the self-protected rechargeable single-cell battery of this utility model, the steel shell is a nickel-plated steel shell, the capacitor cell is a core with a positive electrode guide pin and a negative electrode guide pin at the top, and a sealing plug is provided on the top side of the core so that the positive electrode guide pin and the negative electrode guide pin can pass through. The steel shell is squeezed and rolled around the sealing plug to form a sealing waist.

[0006] As an improvement to the technical solution of the self-protected rechargeable single-cell battery of this utility model, the protection control circuit assembly includes a protection controller with charge / discharge and short-circuit protection functions, a positive electrode circuit and a negative electrode circuit led out from the protection controller. The positive electrode circuit is externally connected to the positive electrode of the battery and connected to the positive electrode of the cell through a positive electrode pin. The negative electrode circuit is externally connected to the negative electrode of the battery and connected to the negative electrode of the cell through a negative electrode pin.

[0007] As an improvement to the technical solution of the self-protected rechargeable single-cell battery of this utility model, the positive and negative circuits are provided with basic connecting parts at the protection control board formed by the support component. The basic connecting parts are connecting holes or connecting claw springs located on the board.

[0008] As an improvement to the technical solution of the self-protected rechargeable single-cell battery of this utility model, the negative electrode of the battery is a metal ring that can electrically connect the negative electrode of the cell to the steel shell, and the positive electrode of the battery is a circular metal piece that protrudes outward from the center of the top surface of the support.

[0009] The beneficial effects of this utility model are as follows: a capacitor cell is set inside a steel shell, which can be charged and discharged. The steel shell has better plasticity than the aluminum shell, resulting in better sealing. Furthermore, an internal space surrounded by a sealing ring film can be set on the inner side above the waist. A protection control circuit assembly is set in this space, and the positive and negative terminals of the cell are connected to the positive and negative terminals of the single cell through the protection control circuit assembly. This allows the single cell to be repeatedly charged and discharged and can be used safely, thus forming a rechargeable and safe single-cell battery. Attached Figure Description

[0010] Figure 1 This is an exploded cross-sectional view of a self-protected rechargeable single-cell battery according to the present invention.

[0011] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the cap portion in a single-cell battery.

[0012] Figure 3 for Figure 1 The diagram shows a simplified circuit structure for a single battery cell.

[0013] Figure 4 for Figure 3 The diagram shows the circuit structure for charging via a female connector. Detailed Implementation

[0014] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0015] like Figure 1 , Figure 2 , Figure 3As shown, this utility model discloses a self-protected rechargeable single-cell battery, comprising a cylindrical steel shell 11, a capacitor cell 15 disposed within the steel shell, and a cap 12 disposed at the opening of the steel shell. The cap 12 includes a circular plate-shaped support member 21, a sealing ring film 22 disposed between the support member 21 and the capacitor cell, and a protection control circuit assembly 23 attached to the inner surface of the support member 21. The capacitor cell 15 is disposed within the steel shell 11, allowing for charging and discharging. The steel shell 11 has better plasticity than an aluminum shell, resulting in better sealing. Furthermore, an internal space surrounded by the sealing ring film 22 can be provided above the inner side of the casing. The protection control circuit assembly 23 is disposed within this space, and the positive and negative terminals of the cell are connected to the positive and negative terminals of the single-cell battery through the protection control circuit assembly. This allows for repeated charging and discharging of the single-cell battery and ensures safe use, thus forming a rechargeable and safe single-cell battery. The inner surface of the support member 21 of the cap 12 can be configured as a printed circuit board and embedded with components to form a circuit assembly with protective and control functions. This circuit assembly can also be adjusted to a preset output voltage value before the cap 12 is packaged. The output voltage value can be set to a fixed value between 1.5V and 5V as needed, filling the gap in current rechargeable batteries that do not have a 1.5V rating (current rechargeable batteries are usually composed of multiple cells and typically have a discharge voltage of 5V or higher, at least 3V). Each cell is equipped with circuit components to form a protection device, giving each cell an independent protection circuit. Individual cell protection makes battery use safer. Figure 4 As shown, the protection control circuit component 23 is connected to the TYPC female connector so that charging can be performed.

[0016] The steel shell 11 is a nickel-plated steel shell, and the capacitor cell 15 is a core with a positive electrode guide pin 55 and a negative electrode guide pin 56 at the top. The top side of the core is provided with a sealing plug 52 through which the positive electrode guide pin 55 and the negative electrode guide pin 56 can pass. The steel shell 11 is squeezed and grooved around the sealing plug 52 to form a sealing waist 18, thereby forming the basic energy storage part of a single battery cell. The sealing plug 52 can form a barrier between the circuit part and the cell part. The sealing plug 52, the sealing ring film 22 and the support member 21 form a closed space to place the circuit and components, which plays a protective role for the protection control circuit.

[0017] Furthermore, the protection control circuit assembly 23 includes a protection controller with charge / discharge and short-circuit protection functions, a positive circuit 25 and a negative circuit 26 derived from the protection controller. An independent protection control circuit assembly 23 is set inside the single-cell battery, and the positive and negative circuits are derived through the set output voltage value. The positive circuit 25 includes an inner branch and an outer branch. The outer branch extends to connect to the positive terminal 35 of the battery, while the inner branch connects to the positive terminal of the cell through the positive terminal pin 55. The negative circuit 25 includes an inner branch and an outer branch. The outer branch extends to connect to the negative terminal of the battery, while the inner branch connects to the negative terminal of the cell through the negative terminal pin 56. Thus, the positive and negative terminals of the cell are protected and controlled by the protection control circuit assembly 23 before being derived to the battery surface to form the positive and negative terminals of the battery. This controls and protects the electrical output and input of the cell, making the use of the single-cell battery safer.

[0018] Furthermore, the positive circuit 25 and the negative circuit 26 are provided with basic connecting parts at the protection control board formed by the support member 21. The basic connecting parts are connecting holes or connecting claw springs located on the board. The positive terminal of the battery is installed in the connecting hole to conduct electricity to the positive circuit. Of course, it can also be connected by claw springs to form electrical conduction.

[0019] Furthermore, the battery negative electrode 36 is a metal ring that electrically connects the cell negative electrode 56 to the steel shell. The metal ring becomes a link in the electrical conduction process, connecting the battery negative electrode 36 and then passing inward through the protection and control circuit assembly 23, before connecting to the cell negative electrode 56 through an inner branch to form an electrical path. The battery positive electrode 35 is a circular metal piece that protrudes outward from the center of the top surface of the support. The battery positive electrode 35 is connected to the outer branch of the positive electrode circuit through a connecting hole, and then the inner branch connects to the cell positive electrode 55 to form a conductive path.

[0020] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model application are still within the scope of the present utility model.

Claims

1. A self-protecting rechargeable single cell battery characterized by: It includes a cylindrical steel shell, a capacitor cell disposed inside the steel shell, and a cap disposed at the opening of the steel shell. The cap includes a circular plate-shaped support, a sealing ring film disposed between the support and the capacitor cell, and a protective control circuit assembly attached to the inner surface of the support.

2. The self-protected rechargeable single-cell battery according to claim 1, characterized in that: The steel shell is a nickel-plated steel shell, and the capacitor cell is a wound core with a positive electrode guide pin and a negative electrode guide pin at the top. The top side of the wound core is provided with a sealing plug that can be passed through by the positive electrode guide pin and the negative electrode guide pin. The steel shell is formed by a compression groove around the sealing plug to form a sealing waist.

3. The self-protecting rechargeable single-cell battery of claim 2, wherein: The protection control circuit assembly includes a protection controller with charge / discharge and short-circuit protection functions, a positive circuit and a negative circuit derived from the protection controller. The positive circuit is externally connected to the positive terminal of the battery and connected to the positive terminal of the battery cell through a positive electrode pin. The negative circuit is externally connected to the negative terminal of the battery and connected to the negative terminal of the battery cell through a negative electrode pin.

4. The self-protecting rechargeable single-cell battery of claim 3, wherein: The positive and negative circuits are provided with basic connecting parts at the protection control board formed by the support components. The basic connecting parts are connecting holes or connecting claw springs located on the board.

5. The self-protecting rechargeable single-cell battery of claim 4, wherein: The negative electrode of the battery is a metal ring that can electrically connect the negative electrode of the battery cell to the steel shell, and the positive electrode of the battery is a circular metal piece that protrudes outward from the center of the top surface of the support.

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