Multi-tab winding type high-power battery

Abstract

The utility model discloses a multi-tab winding type high-power battery, and particularly relates to the technical field of batteries, the multi-tab winding type high-power battery comprises a shell, a cover ring and a positive tab, the cover ring is fixed at one end part of the shell, the positive tab is fixedly connected to the inner wall of the cover ring, and a multi-point contact mechanism is arranged on the outer wall of the positive tab; the multi-point contact mechanism comprises a contact ring arranged on the outer wall of the positive tab in a sliding manner, one side of the contact ring is fixedly connected with a plurality of contact columns, and one end part of each contact column is fixedly connected with a tab column. According to the utility model, the positive lug is in contact with the positive power supply end, the negative pole can be butted with the power supply negative pole end, the elastic sheet is extruded under the resilience force action of the reinforcing core power supply negative pole, the reinforcing core power supply positive lug and the arc-shaped elastic strip, the elastic sheet rebounds to extrude the contact ring, the contact column drives the lug columns to move leftwards, and the stable contact can be realized by the contact of the plurality of lug columns; therefore, the contact power supply effect is better.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and more specifically, to a multi-tab wound high-power battery. Background Technology

[0002] Multi-tab wound high-power batteries are well-suited for high-power devices that typically require rapid charging and discharging and high energy output due to their excellent rate performance and charge / discharge efficiency. Multi-tab batteries can meet these requirements very well.

[0003] Among the existing published documents, patent publication number CN114628771A discloses a wound battery. This battery mainly uses a wire tab dispersion and bundling component to disperse and bundle all the wire tabs, uniformly collect current, and position them, thereby ensuring the conductive connection between all wire tabs and the electrode post and avoiding situations such as missing wire connections or partial wire connections. By using the wire area of ​​the porous current collector as the wire tabs, the problems of difficult welding and easy desoldering between the tabs and the current collector, and between the tabs and the electrode post, can be avoided, reducing processing steps and improving current collection efficiency; however, this battery has the following drawbacks.

[0004] When a battery is in use, it needs to be pressed through the contact points to achieve power supply. However, it is difficult for the tabs to provide multiple points of contact during the contact process, which makes it easy for poor contact problems to occur during later use. Therefore, multi-tab wound high-power batteries are needed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-electrode wound high-power battery.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-tab wound high-power battery, comprising a casing, a cover ring, and a positive tab. The cover ring is fixed to one end of the casing, and the positive tab is fixedly connected to the inner wall of the cover ring. The outer wall of the positive tab is provided with a multi-point contact mechanism. The multi-point contact mechanism includes a contact ring slidably disposed on the outer wall of the positive tab, and a plurality of contact posts are fixedly connected to one side of the contact ring. One end of each contact post is fixedly connected to a tab post. A plurality of spring pieces are fixedly connected to the outer wall of the contact ring, and an arc-shaped spring strip is fixedly connected to one side of the inner wall of each spring piece. The plurality of spring pieces are fixedly connected to the cover ring.

[0007] Preferably, the plurality of contact posts are arranged in a circular, equidistant distribution, and the contact posts are made of copper. The outer wall of the electrode post is made of a smooth surface. The plurality of electrode posts are arranged in a circular, equidistant distribution. A core is fixedly installed on the inner wall of the housing, and a reinforcing core is fixedly connected to the inner wall of the core. One end of the reinforcing core is fixedly installed away from the positive electrode.

[0008] In this technology, the positive electrode contactes the positive power supply terminal, the shell supports the core body, the core body supports the reinforcing core, and the reinforcing core supplies the negative power supply post and the reinforcing core supplies the positive electrode. Under the rebound force of the arc-shaped spring strip, the spring sheet is squeezed, the contact ring slides to the left along the outer wall of the positive electrode, and the contact post drives the electrode post to move to the left, and the electrode post is squeezed against the positive power supply terminal.

[0009] Preferably, the outer wall of the shell is fixedly connected to two reinforcing sleeves, and a reinforcing and protective assembly is provided between the two reinforcing sleeves. The reinforcing and protective assembly includes two support rings disposed between the two reinforcing sleeves, multiple protective posts fixedly connected between the two support rings, two support blocks disposed between two adjacent protective posts, and a protective sleeve fixedly connected between two support blocks. A reinforcing inner ring is fixedly installed on the inner wall of the protective sleeve. Multiple reinforcing blocks are fixedly installed on the outer wall of the reinforcing sleeve. The reinforcing sleeves and support rings are fixedly connected, and the multiple protective posts are arranged in a circular, equidistant distribution. The vertical cross-section of both the protective sleeve and the reinforcing inner ring is circular, and the inner wall of the reinforcing inner ring is a smooth surface.

[0010] In this technology, the reinforcing sleeve supports multiple reinforcing blocks, two support rings can provide stable support for multiple protective columns, two support blocks support the protective sleeve, and multiple protective columns can provide stable support for the reinforcing inner ring of the inner wall of the protective sleeve, so as to avoid the shell being impacted by external forces and to avoid damage to the outer wall of the shell.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. This utility model adopts a multi-point contact mechanism. The positive electrode tab contacts the positive power supply terminal, while the negative electrode post can be connected to the negative power supply terminal. The reinforcing core power supply negative electrode post and the reinforcing core power supply positive electrode tab are reinforced. The spring strip is squeezed by the rebound force of the arc-shaped spring strip. The spring strip rebounds and squeezes the contact ring. The contact post drives the electrode tab post to move to the left. Multiple electrode tab posts can achieve stable contact and avoid poor contact. This contact power supply effect is better.

[0013] 2. This utility model adopts a reinforced protection component. The reinforcing block reinforces and supports multiple support rings. Two support rings can provide stable support for multiple protective columns. Two support blocks support the protective sleeve. The protective sleeve can realize external protection operation and avoid the shell from being impacted by external forces. The shell has better pressure resistance and damage prevention effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the multi-electrode wound high-power battery of this utility model.

[0015] Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0016] Figure 3 This is a schematic diagram of the vertical cross-sectional structure of the multi-electrode wound high-power battery of this utility model.

[0017] Figure 4 This is a schematic diagram of the main structure of the multi-electrode wound high-power battery of this utility model.

[0018] Figure 5 This is a partial structural diagram of the connection between the protective sleeve and the reinforced inner ring of this utility model.

[0019] The attached diagram is labeled as follows: 1. Shell; 2. Cover ring; 3. Positive electrode lug; 4. Contact ring; 5. Contact post; 6. Electrode lug post; 7. Spring piece; 8. Arc-shaped spring strip; 9. Core body; 10. Reinforcing core; 11. Negative electrode post; 12. Reinforcing sleeve; 13. Support ring; 14. Protective post; 15. Support block; 16. Protective sleeve; 17. Reinforcing inner ring; 18. Reinforcing block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] As attached Figure 1-5 The multi-pole wound high-power battery shown has a multi-point contact mechanism. The multi-point contact mechanism can avoid poor contact, thus improving the power supply effect. The specific structural settings of each mechanism and component are as follows.

[0022] In this embodiment, as shown in the appendix Figure 1-3As shown, a multi-tab wound high-power battery includes a housing 1, a cover ring 2, and a positive tab 3. The cover ring 2 is fixed to one end of the housing 1, and the positive tab 3 is fixedly connected to the inner wall of the cover ring 2. The battery is characterized in that: the outer wall of the positive tab 3 is provided with a multi-point contact mechanism; the multi-point contact mechanism includes a contact ring 4 slidably disposed on the outer wall of the positive tab 3, and a plurality of contact posts 5 are fixedly connected to one side of the contact ring 4, and a tab post 6 is fixedly connected to one end of each contact post 5; a plurality of spring pieces 7 are fixedly connected to the outer wall of the contact ring 4, and an arc-shaped spring strip 8 is fixedly connected to one side of the inner wall of each spring piece 7, and the plurality of spring pieces 7 are fixedly connected to the cover ring 2.

[0023] In this embodiment, as shown in the appendix Figure 3 As shown, a core 9 is fixedly installed on the inner wall of the housing 1, and a reinforcing core 10 is fixedly connected to the inner wall of the core 9. One end of the reinforcing core 10 is fixedly installed away from the positive electrode tab 3 so that the core 9 can be supported by the housing 1, which in turn supports the reinforcing core 10. The reinforcing core 10 supplies power to the negative electrode post 11 to realize the power supply operation.

[0024] In this embodiment, the multi-point contact mechanism contacts the positive power supply terminal via the positive electrode tab 3, while the negative electrode post 11 can be connected to the negative power supply terminal. The housing 1 supports the core body 9, which in turn supports the reinforcing core 10. The reinforcing core 10 supplies power to the negative electrode post 11 and the positive electrode tab 3. Under the rebound force of the arc-shaped spring strip 8, the spring piece 7 is squeezed. The spring piece 7 rebounds and squeezes the contact ring 4. The contact ring 4 slides to the left along the outer wall of the positive electrode tab 3. At the same time, the contact ring 4 drives multiple contact posts 5 to slide to the left. The contact posts 5 drive the electrode tab posts 6 to slide to the left. The electrode tab posts 6 are squeezed against the positive power supply terminal, achieving squeeze supply contact. The contact of multiple electrode tab posts 6 can achieve stable contact.

[0025] In this embodiment, as shown in the appendix Figure 1-5 As shown, two reinforcing sleeves 12 are fixedly connected to the outer wall of the shell 1, and a reinforcing protective assembly is provided between the two reinforcing sleeves 12. The reinforcing protective assembly includes two support rings 13 disposed between the two reinforcing sleeves 12, multiple protective posts 14 fixedly connected between the two support rings 13, two support blocks 15 disposed between two adjacent protective posts 14, and a protective sleeve 16 fixedly connected between the two support blocks 15. A reinforcing inner ring 17 is fixedly installed on the inner wall of the protective sleeve 16. Multiple reinforcing blocks 18 are fixedly installed on the outer wall of the reinforcing sleeves 12. The reinforcing sleeves 12 and the support rings 13 are fixedly connected, and the multiple protective posts 14 are arranged in a circular ring at equal intervals. The vertical cross-section of the protective sleeve 16 and the reinforcing inner ring 17 is both circular, and the inner wall of the reinforcing inner ring 17 is a smooth surface.

[0026] In this embodiment, the housing 1 supports the reinforcing sleeve 12, which in turn supports multiple reinforcing blocks 18. The reinforcing blocks 18 reinforce and support multiple support rings 13. Two support rings 13 provide stable support to multiple protective posts 14. Simultaneously, the housing 1 supports two support blocks 15, which in turn support the protective sleeve 16. Furthermore, the multiple protective posts 14 provide stable support to the reinforcing inner ring 17 on the inner wall of the protective sleeve 16. Thus, the protective sleeve 16 can achieve external protection, thereby preventing the housing 1 from being impacted by external forces, avoiding damage to the exterior of the housing 1, and preventing damage to the outer wall of the housing 1.

[0027] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A multi-tab wound high-power battery, comprising a housing (1), a cover ring (2), and a positive tab (3), wherein the cover ring (2) is fixed to one end of the housing (1), and the positive tab (3) is fixedly connected to the inner wall of the cover ring (2), characterized in that: The outer wall of the positive electrode ear (3) is provided with a multi-point contact mechanism; The multi-point contact mechanism includes a contact ring (4) that is slidably disposed on the outer wall of the positive electrode lug (3), and a plurality of contact posts (5) are fixedly connected to one side of the contact ring (4), and an electrode lug post (6) is fixedly connected to one end of each contact post (5). The outer wall of the contact ring (4) is fixedly connected with a plurality of spring pieces (7), and an arc-shaped spring strip (8) is fixedly connected to one side of the inner wall of each spring piece (7), and the plurality of spring pieces (7) are fixedly connected to the cover ring (2).

2. The multi-electrode wound high-power battery according to claim 1, characterized in that: The multiple contact posts (5) are arranged in a circular, equidistant distribution, and the contact posts (5) are made of copper.

3. The multi-electrode wound high-power battery according to claim 1, characterized in that: The outer wall of the pole lug (6) is made of smooth surface, and the multiple pole lugs (6) are arranged in a circular and equidistant distribution.

4. The multi-electrode wound high-power battery according to claim 1, characterized in that: The inner wall of the housing (1) is fixedly installed with a core body (9), and the inner wall of the core body (9) is fixedly connected with a reinforcing core (10). One end of the reinforcing core (10) is fixedly installed away from the positive electrode tab (3).

5. The multi-electrode wound high-power battery according to claim 1, characterized in that: Two reinforcing sleeves (12) are fixedly connected to the outer wall of the housing (1), and a reinforcing and protective assembly is provided between the two reinforcing sleeves (12); The reinforced protection assembly includes two support rings (13) disposed between two reinforced sleeves (12), a plurality of protective posts (14) are fixedly connected between the two support rings (13), two support blocks (15) are provided between two adjacent protective posts (14), a protective sleeve (16) is fixedly connected between the two support blocks (15), and a reinforced inner ring (17) is fixedly installed on the inner wall of the protective sleeve (16). Multiple reinforcing blocks (18) are fixedly installed on the outer wall of the reinforcing sleeve (12).

6. The multi-electrode wound high-power battery according to claim 5, characterized in that: The reinforcing sleeve (12) is fixedly connected to the support ring (13), and the multiple protective columns (14) are arranged in a circular and equidistant distribution.

7. The multi-electrode wound high-power battery according to claim 5, characterized in that: The vertical cross-sections of the protective sleeve (16) and the reinforcing inner ring (17) are both circular, and the inner wall of the reinforcing inner ring (17) is a smooth surface.

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