TYPE-C rechargeable battery

Abstract

The utility model discloses a TYPE-C rechargeable battery. The TYPE-C rechargeable battery comprises a battery body, an anode cap, a cathode steel shell, an end cover seat and a circuit board, the battery body is sleeved with the negative steel shell, the circuit board is parallel to the upper end face of the battery body, a negative pin of the battery body penetrates through the circuit board and is bent and circuitously welded to the negative steel shell, and an insertion tongue matched with an insertion cavity of the Type-C plug is arranged at the edge position of the circuit board; the negative pole pin ingeniously penetrates through the circuit board and is bent and circuitously welded on the negative pole steel shell, so that the stability of electrical connection is ensured, the structural stability is good, the space is saved, and the positive pole cap and the negative pole steel shell are additionally arranged, so that the connection between the battery and external equipment is more convenient and quicker. For example, during charging, an insertion tongue on the circuit board can be in butt joint with an insertion cavity of a Type-C plug, or the whole body is directly placed into a charging box for charging, so that the charging mode is more flexible, and different use requirements are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of rechargeable batteries, and specifically relates to a TYPE-C rechargeable battery. Background Art

[0002] Lithium-ion batteries, commonly known as lithium batteries, are increasingly mature technologies with advantages such as long cycle life, high specific energy, high safety, and environmental friendliness. Lithium batteries are secondary batteries that primarily function through the movement of lithium ions between positive and negative electrodes during the charge and discharge process. However, existing lithium batteries require a dedicated charging station for recharging after use, making them relatively cumbersome to use.

[0003] To this end, a USB rechargeable battery has been introduced to the market, such as the utility model patent application "A Battery with a Novel Type-C Charging Interface" with publication number "CN220585348U." This patent discloses a battery with a novel Type-C charging interface, comprising an energy storage cell, a first positive electrode, and a first negative electrode. The energy storage cell is surrounded by a plastic housing, which is electrically connected to the first positive and first negative electrodes via a circuit board. A charging interface is integrally formed on one side of the plastic housing. The circuit board is provided with a Type-C power connector, which fits within the charging interface. The circuit board and the energy storage cell are coaxially arranged, with power connectors at each end correspondingly connected to the energy storage cell, the first positive electrode, the first negative electrode, and the second positive electrode. While this design allows for charging the battery using a Type-C data cable, the coaxial arrangement of the circuit board and the energy storage cell occupies significant space, impacting battery capacity. Utility Model Content

[0004] In view of the above-mentioned deficiencies, the purpose of the present invention is to provide a TYPE-C rechargeable battery with a reasonable structural design and reduced space occupied by TYPE-C components.

[0005] In order to achieve the above purpose, the technical solution provided by the present utility model is:

[0006] A Type-C rechargeable battery comprises a battery body, a positive electrode cap, a negative electrode steel casing, an end cap seat located at the upper end of the battery body, and a circuit board located within the end cap seat. The negative electrode steel casing is sleeved over the battery body. The upper end surface of the battery body has positive and negative electrode pins arranged side by side and connected to the circuit board. The circuit board is parallel to the upper end surface of the battery body. The negative electrode pin passes through the circuit board and is welded to the negative electrode steel casing in a circuitous manner. The end cap seat is provided with an opening for inserting a Type-C plug. The edge of the circuit board protrudes toward the opening and extends a certain distance to form a tongue that adapts to the insertion cavity of the Type-C plug. The tongue is provided with a gold finger that contacts the terminal of the Type-C plug. The positive electrode cap is arranged on the upper end surface of the end cap seat and is connected to the circuit board. The design of the positive electrode cap and negative electrode steel casing makes connecting the battery to external devices more convenient and quick.

[0007] As a preferred solution of the present invention, the circuit board and the inserting tongue are an integral connection structure and are located on the same horizontal plane, with a firm connection and good structural stability.

[0008] As a preferred solution of the present invention, locking positions are provided on both sides of the tongue, which cooperates well with the Type-C plug to ensure that it is not easy to loosen or fall off when inserted.

[0009] As a preferred solution of the present invention, a groove adapted to the negative electrode foot is provided at the edge of the upper end of the battery body for accommodating the negative electrode foot, ensuring a smooth surface with no protruding bumps and a beautiful appearance.

[0010] As a preferred solution of the present invention, a notch is provided on the edge of the circuit board that matches the shape of the negative electrode leg. The notch is aligned with the groove, and the provision of the notch can further save space.

[0011] As a preferred embodiment of the present invention, it further includes a film that can encapsulate the battery body and the end cap, which can better protect the battery and can be printed with parameter specifications. The outer diameter of the end cap is consistent with the outer diameter of the battery body, which looks well-integrated and has an aesthetically pleasing appearance.

[0012] As a preferred solution of the present invention, the battery body is a rechargeable lithium battery or a rechargeable sodium battery, which has a high energy density and a long battery life, and can meet the needs of different users.

[0013] The beneficial effects of the present invention are as follows: the present invention has a reasonable structural design, and the circuit board is designed to be parallel to the upper end face of the battery body, which greatly reduces the height of the occupied space and can save more internal space for the battery body, thereby increasing the volume and capacity of the battery body and extending the battery life; the negative electrode foot is cleverly passed through the circuit board and bent and welded to the negative steel shell, which not only ensures the stability of the electrical connection and good structural stability, but also saves space, and is additionally provided with a positive cap and a negative steel shell, wherein the positive cap serves as the positive lead-out terminal and the negative steel shell serves as the negative lead-out terminal, making the connection between the battery and the external device more convenient and quick. For example, when charging, the tongue on the circuit board can be connected to the cavity of the Type-C plug, or the whole can be directly placed in the charging box for charging, making the charging method more flexible and meeting different usage requirements.

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0016] Figure 2 This is a schematic diagram of the decomposition structure of the utility model Figure 1 .

[0017] Figure 3 This is a schematic diagram of the decomposition structure of the utility model Figure 2 . DETAILED DESCRIPTION

[0018] Example: See Figures 1 to 3 This embodiment provides a TYPE-C rechargeable battery, which includes a battery body 1, a positive electrode cap 2, a negative electrode steel casing 3, an end cap 4, and a circuit board 5. The battery body 1 can be a rechargeable lithium battery or a rechargeable sodium battery, with high energy density and long battery life, which can meet the needs of different users. The circuit board 5 integrates functional unit circuits such as a charge and discharge protection unit, a buck-boost unit, and a battery management circuit unit. In actual production, the required functions can be integrated according to the required functions.

[0019] The upper end surface of the battery body 1 has a positive electrode leg 11 and a negative electrode leg 12 arranged side by side, wherein the negative electrode leg 12 is longer. The circuit board 5 is provided with a positive electrode welding hole 51 and a negative electrode welding hole 52 corresponding to the positions of the positive electrode leg 11 and the negative electrode leg 12.

[0020] The edge of the circuit board 5 protrudes toward the opening and extends a certain distance to form a tongue 6 that matches the insertion cavity of the Type-C plug. Preferably, the circuit board 5 and the tongue 6 are an integral connection structure and are on the same horizontal plane, with a firm connection and good structural stability. The tongue 6 is provided with a gold finger that contacts the terminal of the Type-C plug. The gold finger is used to contact the terminal of the Type-C plug after the tongue 6 is inserted into the insertion cavity of the Type-C plug to achieve electrical connection. Preferably, a latch 61 is provided on both sides of the tongue 6 to cooperate well with the Type-C plug and ensure that it is not easy to loosen or fall off during insertion.

[0021] A notch 53 matching the shape of the negative electrode leg 12 is provided at the edge of the circuit board 5 , and a groove 13 matching the negative electrode leg 12 is provided at the edge of the upper end of the battery body 1 .

[0022] During production, the circuit board 5 is placed flat on the upper end surface of the battery body 1, and the positive electrode pin 11 and the negative electrode pin 12 of the battery body 1 are inserted into the positive electrode welding hole 51 and the negative electrode welding hole 52 of the circuit board 5 respectively. Then, the positive electrode pin 11 and the negative electrode pin 12 of the battery body 1 are connected to the circuit board 5 by welding, so that the circuit board 5 is parallel to the upper end surface of the battery body 1, and the notch 53 is ensured to be relatively aligned with the groove 13. Since the negative electrode pin 12 is relatively long, the tail portion that passes through the negative electrode welding hole 52 can be bent and circuitously passed through the notch 53 to extend into the groove 13. Then, the negative steel shell 3 is placed on the battery body 1, and the tail end of the negative electrode pin 12 is welded to the negative steel shell 3 to connect the negative steel shell 3 to the circuit board 5. The positive electrode cap 2 is welded to the center of the upper surface of the circuit board 5, and then injection molding is performed to form the end cap seat 4. The end cap seat 4 can cover and fix the circuit board 5, the positive electrode pin 11 and the negative electrode pin 12 and other parts. The end cap seat 4 is formed with an opening corresponding to the position of the plug tongue 6 to allow the Type-C plug to be inserted. The positive electrode cap 2 is exposed from the upper end face of the end cap seat 4. The outer diameter of the end cap seat 4 is preferably consistent with the outer diameter of the battery body 1, which looks well-integrated and beautiful in appearance; then the packaging film is applied, and the negative steel shell 3 and the end cap seat 4 are covered with a film, and only the bottom surface of the positive electrode cap 2 and the negative steel shell 3 is exposed, which can better protect the battery, and the parameter specifications or required patterns, text and LOGO can be printed on the film.

[0023] Since the tongue 6 that is compatible with the insertion cavity of the Type-C plug is directly provided at the edge of the circuit board 5, the gold fingers on the tongue 6 can contact the terminals of the Type-C plug, eliminating the need for a traditional Type-C socket. Moreover, the circuit board 5 and the tongue 6 are an integrated connection structure and are on the same horizontal plane and parallel to the upper end surface of the battery body 1, which greatly reduces the height occupied space and has a small volume. More internal space can be saved for use by the battery body 1, thereby increasing the volume and capacity of the battery body 1 and extending the battery life.

[0024] When charging, the tongue 6 on the circuit board 5 can be connected to the socket of the Type-C plug, or the whole device can be directly placed in the charging box for charging. There are many charging methods and a wide range of applications.

[0025] Based on the disclosures and teachings of the above description, those skilled in the art to which the present invention belongs may also make changes and modifications to the above-mentioned embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although some specific terms are used in this description, these terms are only for convenience of description and do not constitute any limitation to the present invention. As described in the above-mentioned embodiments of the present invention, other batteries obtained using the same or similar structures are all within the scope of protection of the present invention.

Claims

1. A TYPE-C rechargeable battery comprising a battery body, an end cap seat located at the upper end of the battery body, and a circuit board located in the end cap seat, characterized in that: It also includes a positive electrode cap and a negative electrode steel shell. The negative electrode steel shell is sleeved on the battery body. The upper end surface of the battery body has a positive electrode pin and a negative electrode pin side by side and is connected to the circuit board. The circuit board is parallel to the upper end surface of the battery body. The negative electrode pin passes through the circuit board and is bent and welded to the negative electrode steel shell. The end cover seat is provided with an opening for inserting the Type-C plug. The edge of the circuit board protrudes toward the opening and extends a certain distance to form a tongue that is compatible with the insertion cavity of the Type-C plug. The tongue is provided with a gold finger that contacts the terminal of the Type-C plug. The positive electrode cap is arranged on the upper end surface of the end cover seat and is connected to the circuit board.

2. The TYPE-C rechargeable battery according to claim 1, characterized in that: The circuit board and the inserting tongue are an integrally connected structure and are on the same horizontal plane.

3. The TYPE-C rechargeable battery according to claim 1, characterized in that: Both sides of the inserting tongue are provided with latching positions.

4. The TYPE-C rechargeable battery according to claim 1, characterized in that: A groove matching the shape of the negative electrode foot is provided at the edge of the upper end of the battery body.

5. The TYPE-C rechargeable battery according to claim 1, characterized in that: A notch that matches the shape of the negative electrode leg is provided at the edge of the circuit board, and the notch is aligned with the groove.

6. The TYPE-C rechargeable battery according to any one of claims 1 to 5, characterized in that: It also includes an adhesive film that can encapsulate and cover the battery body and the end cover seat.

7. The TYPE-C rechargeable battery according to any one of claims 1 to 5, characterized in that: The battery body is a rechargeable lithium battery or a rechargeable sodium battery.

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