Charging clamp for secondary battery

Abstract

The utility model discloses a charging clamp for a secondary battery, and belongs to the technical field of battery charging equipment. The clamp comprises a positioning seat, a clamp assembly and a clamp base. A positioning groove is formed in the positioning seat, and the battery monomers are arranged in the positioning groove, so that accurate positioning is realized; the clamp assembly comprises a first clamp assembly and a second clamp assembly which are symmetrically arranged on the two sides of the positioning seat and are matched with each other to stably clamp the single battery from the two sides and charge the single battery; the positioning seat and the clamp assembly are both installed on the clamp base, and the clamp base provides support for the whole structure. According to the charging clamp, accurate positioning of the single battery is achieved through the positioning grooves, the battery is reliably clamped and charged through the first clamp assembly and the second clamp assembly which are symmetrical on the two sides, and the stability and high efficiency of the charging process of the secondary battery can be effectively guaranteed through overall supporting of the clamp base; therefore, the defects of a traditional battery charging clamp in the aspects of charging stability, battery protection, charging efficiency and the like are overcome.

Description

Technical Field

[0001] This utility model relates to the field of battery charging equipment technology, and specifically to a charging clamp for secondary batteries. Background Technology

[0002] In today's era of rapid technological development, rechargeable batteries, as core energy supply components, are widely used in various electronic devices and electric vehicles, and the demand for efficient and convenient charging is becoming increasingly prominent.

[0003] However, existing traditional battery charging clamps have revealed many problems in actual use. For example, firstly, during charging, the battery is prone to shaking and displacement, causing frequent changes in the charging contact points. This not only seriously affects charging efficiency, but long-term unstable contact can also damage the internal electrode structure of the battery, greatly shortening its lifespan. Secondly, traditional clamps often use relatively rigid materials and large clamping forces to achieve the purpose of clamping. Although this method can fix the battery to a certain extent, it is very easy to leave scratches and indentations on the battery surface, and even cause damage to the battery casing. Once the battery casing is damaged, the internal chemical substances are exposed, which not only poses a safety hazard, but also accelerates the battery self-discharge, leading to a significant decline in battery performance. Thirdly, traditional charging clamps can often only meet the charging of a single battery or a small number of batteries at the same time, which seriously restricts the overall work progress and cannot meet the ever-increasing demand for fast charging.

[0004] Given the shortcomings of traditional battery charging clamps in terms of stability, battery protection, and charging efficiency, there is an urgent need to design a new type of charging clamp to solve these problems and promote the further development of secondary battery charging technology. Utility Model Content

[0005] The purpose of this invention is to provide a charging clamp for secondary batteries to solve the technical problems mentioned in the background section.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A charging clamp for secondary batteries, comprising:

[0008] A positioning seat is provided with a positioning groove, which is used to place a battery cell to facilitate accurate positioning of the battery cell.

[0009] The clamping assembly includes a first clamping assembly and a second clamping assembly; the first clamping assembly and the second clamping assembly are symmetrically arranged on both sides of the positioning seat, and the first clamping assembly and the second clamping assembly cooperate with each other to securely clamp the battery cell from both sides and charge it;

[0010] The fixture base, the positioning seat and the fixture assembly are all disposed on the fixture base, and the fixture base is used to support the entire charging fixture.

[0011] The above technical solution has the following advantages: Compared with the existing technology, this secondary battery charging fixture achieves precise positioning of the battery cell by means of the positioning slot of the positioning seat. The first and second clamping components on both sides work together to firmly clamp the battery cell and carry out charging. The clamping base provides reliable support for the entire charging fixture, ensuring the stability and efficiency of the secondary battery charging process in all aspects.

[0012] In a preferred embodiment, the first clamping assembly includes a cylinder, a clamping plate, and an electrode head;

[0013] The bottom of the cylinder is fixed to the clamp base, and the cylinder output end is arranged horizontally; the clamping plate is arranged at the cylinder output end and is arranged vertically; the pole head is arranged vertically on the clamping plate and is arranged horizontally.

[0014] The second clamping component is configured in the same way as the first clamping component.

[0015] The above technical solution has the following advantages: The cylinder in the first clamping assembly is firmly installed at the bottom of the clamping base, and the output end is set horizontally to ensure that it can flexibly drive the vertical clamping plate. The horizontal terminal head installed vertically on the clamping plate can accurately connect to the battery terminal for charging. By setting the second clamping assembly in the same way, the two are symmetrical and coordinated to ensure that the battery cells are firmly clamped from both sides and charged efficiently.

[0016] In a preferred embodiment, the electrode head is provided with an elastic component, which is located at the end of the electrode head that contacts the battery cell.

[0017] The above technical solution has the following advantages: By providing an elastic component near the end of the electrode that contacts the battery cell, the elastic component can avoid damage to the battery caused by rigid contact and excessive clamping force, effectively prevent damage to the battery casing, eliminate safety hazards caused by exposure of internal chemical substances, reduce battery self-discharge, and maintain battery performance to the greatest extent. It provides comprehensive protection for the battery while achieving stable clamping and efficient charging.

[0018] In a preferred embodiment, the electrode head is provided with a guide hole, and the elastic component is disposed within the guide hole.

[0019] The above technical solution has the following advantages: By installing the elastic component inside the guide hole, this design not only makes the movement of the elastic component more stable and precise during operation, but also ensures the reliability of the contact between the electrode head and the battery cell.

[0020] In a preferred embodiment, the elastic component includes a top post and a spring sheet;

[0021] One end of the top post is located inside the guide hole, and the other end of the top post is located outside the guide hole. One end of the spring plate is located at the bottom of the guide hole, and the other end of the spring plate is connected to the top post. The top post can elastically extend and retract into the guide hole through the spring plate.

[0022] The above technical solution has the following advantages: By using a top post and a spring plate to form the elastic component, one end of the top post is inside the guide hole and the other end extends out of the guide hole. One end of the spring plate is connected to the bottom of the guide hole and the other end is connected to the top post. The top post can be compressed into the guide hole by the spring plate. Unlike traditional clamps that use rigid materials and have large clamping forces, this elastic component design allows the top post to adaptively compress and adjust under the action of the spring plate when the terminal contactes the battery cell. This avoids hard squeezing of the battery surface, effectively prevents scratches and indentations from being left on the battery surface, eliminates the risk of battery casing damage, reduces safety hazards caused by exposure of internal chemical substances, slows down the battery self-discharge rate, and maintains battery performance to the greatest extent. While ensuring charging efficiency, it achieves all-round protection for the battery.

[0023] In a preferred embodiment, the number of positioning slots is several, and the positioning slots are evenly distributed along the length direction of the positioning seat.

[0024] The above technical solution has the following advantages: By setting a number of positioning slots and distributing them evenly along the length of the positioning seat, this design is completely different from traditional charging fixtures, which can only charge a single or a small number of batteries at the same time. The numerous evenly distributed positioning slots can accommodate multiple battery cells at the same time, which greatly improves charging efficiency and effectively alleviates the constraints of traditional charging methods on the overall work progress. It can fully meet the growing demand for fast charging and significantly improve work efficiency while ensuring charging stability.

[0025] In a preferred embodiment, the number of electrode heads is several, and the installation position of the electrode heads is adapted to the battery cell.

[0026] The above technical solution has the following advantages: By setting a number of electrode heads and ensuring that the positions of the electrode heads are precisely matched with the battery cells, multiple electrode heads in multiple matched positions can charge multiple battery cells simultaneously, which significantly improves charging efficiency, effectively alleviates the charging bottleneck problem, fully meets the growing demand for fast charging, greatly improves work efficiency, and comprehensively ensures the efficient operation of secondary battery charging.

[0027] In a preferred embodiment, the fixture base is provided with a positioning groove, the opening of the positioning groove is trapezoidal, the inner diameter of the positioning groove is adapted to the outer diameter of the positioning seat, and the positioning seat is disposed in the positioning groove.

[0028] The above technical solution has the following advantages: By setting a trapezoidal positioning groove on the fixture base, the inner diameter of which is precisely matched with the outer diameter of the positioning seat, the positioning seat is installed in the positioning groove. This design makes the installation of the positioning seat on the fixture base more stable. The trapezoidal opening design makes it easy to send the positioning seat into or out of the positioning groove, which greatly saves operation time and reduces maintenance difficulty. The precise matching between the inner diameter of the positioning groove and the outer diameter of the positioning seat can effectively prevent the positioning seat from shifting or shaking during use, further improving the stability of the entire charging fixture.

[0029] In a preferred embodiment, an insulating sleeve is provided on the clamp plate, and the insulating sleeve is disposed between the clamp plate and the electrode head, and the insulating sleeve is used for insulation between the clamp plate and the electrode head.

[0030] The above technical solution has the following advantages: The insulating sleeve effectively achieves electrical isolation between the clamp and the electrode head, avoiding faults such as short circuits caused by electrical conduction, greatly improving safety during the charging process, and ensuring stable operation of the charging operation.

[0031] In a preferred embodiment, the top of the top column is hemispherical.

[0032] The above technical solution has the following advantages: By designing the top of the top post as a hemispherical shape, the top post can make point contact with the battery cell instead of surface contact when it comes into contact with the battery cell. This effectively reduces the concentration of contact stress and lowers the risk of damage to the battery surface. At the same time, the hemispherical top can adapt to the slight undulations of the battery surface at the moment of contact, ensuring a more stable and reliable electrical connection, further improving the stability and efficiency of charging, and providing more comprehensive protection for the battery cell. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 A schematic diagram of the charging clamp assembly for the secondary battery provided by this utility model;

[0035] Figure 2 A schematic diagram illustrating the use of the charging clamp for the secondary battery provided by this utility model;

[0036] Figure 3 A top view of the charging clamp for the secondary battery provided by this utility model;

[0037] Figure 4 This utility model provides an assembly diagram of the positioning seat and clamp base.

[0038] Figure 5 A cross-sectional schematic diagram of the elastic component provided by this utility model;

[0039] Explanation of reference numerals in the attached figures;

[0040] 1-Battery cell; 2-Positioning seat; 21-Positioning groove; 3-Clamping assembly; 31-First clamping assembly; 311-Cylinder; 312-Clamping plate; 313-Pole head; 32-Second clamping assembly; 4-Clamping base; 41-Positioning slide; 5-Elastic component; 51-Top column; 52-Spring sheet; 6-Guide hole; 7-Insulating sleeve. Detailed Implementation

[0041] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] Example 1

[0047] like Figures 1 to 5 As shown, a charging clamp for a secondary battery includes:

[0048] Positioning seat 2, with positioning groove 21 on the positioning seat 2, battery cell 1 is placed in positioning groove 21, positioning groove 21 is used for precise positioning of battery cell 1.

[0049] The clamping assembly 3 includes a first clamping assembly 31 and a second clamping assembly 32. The first clamping assembly 31 and the second clamping assembly 32 are symmetrically arranged on both sides of the positioning seat 2. The first clamping assembly 31 and the second clamping assembly 32 cooperate with each other to securely clamp the battery cell 1 from both sides and charge it.

[0050] The clamp base 4, positioning seat 2, and clamp assembly 3 are all located on the clamp base 4, and the clamp base 4 is used to support the entire charging clamp.

[0051] Compared with existing technologies, this secondary battery charging fixture achieves precise positioning of the battery cell 1 by means of the positioning groove 21 of the positioning seat 2. The first and second clamping components on both sides work together to firmly clamp the battery cell 1 and carry out charging. The clamping base 4 provides reliable support for the entire charging fixture, ensuring the stability and efficiency of the secondary battery charging process in all aspects.

[0052] In this embodiment, the first clamping assembly 31 includes a cylinder 311, a clamping plate 312, and an end head 313;

[0053] The bottom of cylinder 311 is fixed on the fixture base 4, and the output end of cylinder 311 is set in the horizontal direction; clamping plate 312 is set on the output end of cylinder 311, and clamping plate 312 is set in the vertical direction; pole head 313 is set vertically on clamping plate 312, and pole head 313 is set in the horizontal direction.

[0054] The second clamping assembly 32 is configured in the same way as the first clamping assembly 31;

[0055] The cylinder 311 in the first clamping assembly 31 is firmly installed at the bottom of the clamping base 4, and the output end is set horizontally to ensure that the vertical clamping plate 312 can be flexibly driven. The horizontal terminal head 313 installed vertically on the clamping plate 312 can be accurately connected to the battery terminal for charging. The second clamping assembly 32 is set in the same way, and the two work together symmetrically to ensure that the battery cell 1 is firmly clamped from both sides and charged efficiently.

[0056] In this embodiment, the stroke of cylinder 311 can be flexibly adjusted according to the model of battery cell 1 to prevent the battery cell 1 from being clamped too tightly and causing damage to the casing. This part is conventional technology in the field.

[0057] In this embodiment, the electrode head 313 is provided with an elastic component 5, which is located at the end of the electrode head 313 that contacts the battery cell 1. By providing the elastic component 5 on the electrode head 313 near the end that contacts the battery cell 1, the elastic component 5 can avoid damage to the battery caused by rigid contact and excessive clamping force, effectively prevent damage to the battery casing, eliminate safety hazards caused by exposure of internal chemical substances, reduce battery self-discharge, and maintain battery performance to the greatest extent. It provides comprehensive protection for the battery while achieving stable clamping and efficient charging.

[0058] In this embodiment, the electrode head 313 is provided with a guide hole 6, and the elastic component 5 is disposed in the guide hole 6. By installing the elastic component 5 in the guide hole 6, this design not only makes the movement of the elastic component 5 more stable and precise during operation, but also ensures the reliability of the electrode head when it contacts the battery cell 1.

[0059] In this embodiment, the elastic component 5 includes a top post 51 and a spring sheet 52;

[0060] One end of the top post 51 is located inside the guide hole 6, and the other end is located outside the guide hole 6. One end of the spring plate 52 is located at the bottom of the guide hole 6, and the other end of the spring plate 52 is connected to the top post 51. The top post 51 can elastically extend and retract into the guide hole 6 through the spring plate 52. By composing the elastic component 5 with the top post 51 and the spring plate 52, one end of the top post 51 is inside the guide hole 6, and the other end extends out of the guide hole 6. One end of the spring plate 52 is connected to the bottom of the guide hole 6, and the other end is connected to the top post 51. The top post 51 can elastically extend and retract into the guide hole 6 through the spring plate 52. The guide hole 6 is compressed internally. Unlike traditional clamps that use rigid materials and have large clamping forces, this elastic component design allows the top post 51 to adaptively compress and adjust under the action of the spring plate 52 when the terminal head contacts the battery cell 1. This avoids hard squeezing of the battery surface, effectively prevents scratches and indentations from being left on the battery surface, eliminates the risk of battery casing damage, reduces safety hazards caused by exposure of internal chemical substances, slows down the battery self-discharge rate, and maintains battery performance to the greatest extent. While ensuring charging efficiency, it achieves all-round protection for the battery.

[0061] In this embodiment, a number of positioning slots 21 are provided, and the positioning slots 21 are evenly distributed along the length direction of the positioning seat 2. By providing a number of positioning slots 21 and distributing them evenly along the length direction of the positioning seat 2, this design is quite different from the traditional charging fixture, which can only meet the simultaneous charging of a single or a small number of batteries. The numerous evenly distributed positioning slots 21 can accommodate multiple battery cells 1 at the same time, which greatly improves the charging efficiency and effectively alleviates the constraints of the traditional charging method on the overall work progress. It can fully meet the current growing demand for fast charging and significantly improve work efficiency while ensuring charging stability.

[0062] In this embodiment, a number of electrode heads 313 are provided, and the installation positions of the electrode heads 313 are adapted to the battery cells 1. By providing a number of electrode heads 313 and ensuring that the positions of the electrode heads 313 are precisely adapted to the battery cells 1, multiple electrode heads 313 at multiple adapted positions can simultaneously charge multiple battery cells 1, which significantly improves charging efficiency, effectively alleviates the charging bottleneck problem, fully meets the current growing demand for fast charging, greatly improves work efficiency, and comprehensively ensures the efficient operation of secondary battery charging.

[0063] In this embodiment, the fixture base 4 is provided with a positioning groove 41. The opening of the positioning groove 41 is trapezoidal, and the inner diameter of the positioning groove 41 is adapted to the outer diameter of the positioning seat 2. The positioning seat 2 is located in the positioning groove 41. By providing a positioning groove 41 with a trapezoidal opening on the fixture base 4, its inner diameter is precisely adapted to the outer diameter of the positioning seat 2. The positioning seat 2 is installed in the positioning groove 41. This design makes the installation of the positioning seat 2 on the fixture base 4 more stable. The trapezoidal opening design makes it easy to smoothly put the positioning seat 2 into or take out the positioning groove 41, which greatly saves operation time and reduces maintenance difficulty. The precise adaptation of the inner diameter of the positioning groove 41 to the outer diameter of the positioning seat 2 can effectively prevent the positioning seat 2 from shifting or shaking during use, further improving the stability of the entire charging fixture.

[0064] In this embodiment, an insulating sleeve 7 is provided on the clamping plate 312. The insulating sleeve 7 is disposed between the clamping plate 312 and the electrode 313. The insulating sleeve 7 is used for insulation between the clamping plate 312 and the electrode 313. The setting of the insulating sleeve 7 effectively realizes the electrical isolation between the clamping plate 312 and the electrode 313, avoids faults such as short circuits caused by electrical conduction, greatly improves the safety during the charging process, and ensures the stable operation of the charging operation.

[0065] In this embodiment, the top of the top post 51 is hemispherical. By designing the top of the top post 51 as hemispherical, the hemispherical design allows the top post 51 to make point contact instead of surface contact when it comes into contact with the battery cell 1. This effectively reduces contact stress concentration and lowers the risk of damage to the battery surface. At the same time, the hemispherical top can adapt to the slight undulations of the battery surface at the moment of contact, ensuring a more stable and reliable electrical connection, further improving the stability and efficiency of charging, and providing more comprehensive protection for the battery cell.

[0066] In this embodiment, the spring sheet 52 can also be replaced by a spring, which is a conventional technology in the art and will not be described in detail here.

[0067] The working process of this utility model:

[0068] Battery cell positioning: Place the battery cell 1 in the positioning slot 21 of the positioning seat 2. The positioning seat 2 is provided with multiple positioning slots 21, which can hold multiple battery cells 1 at the same time.

[0069] Clamping of clamping components: The first clamping component 31 and the second clamping component 32 are activated. The output end of the cylinder 311 of the first clamping component 31 extends horizontally, driving the clamping plate 312 connected to it to move closer to the battery cell 1. The second clamping component 32 is set in the same way as the first clamping component 31, and the two are symmetrically set on both sides of the positioning seat 2. The vertically set and horizontally oriented terminal head 313 on the clamping plate 312 gradually moves closer to the battery cell 1.

[0070] Elastic component contact: When the electrode head 313 contacts the battery cell 1, the top post 51 is compressed into the guide hole 6 under the reaction force of the battery cell 1, and the spring sheet 52 undergoes elastic deformation, so that the top post 51 can fit tightly against the electrode of the battery cell 1, ensuring good electrical contact, and at the same time playing a buffering role to prevent damage to the electrode of the battery cell 1. The top of the top post 51 is hemispherical, which helps to better contact the electrode of the battery cell 1.

[0071] Charging process: The battery cell 1 is charged through good contact between the terminal 313 and the electrode of the battery cell 1. Throughout the process, the fixture base 4 provides stable support for the positioning seat 2 and the fixture assembly 3. The positioning seat 2 is installed in the positioning groove 41 of the fixture base 4. The opening of the positioning groove 41 is trapezoidal, and the inner diameter is adapted to the outer diameter of the positioning seat 2, which can ensure that the positioning seat 2 is installed firmly and in an accurate position.

[0072] Insulation protection: An insulating sleeve 7 is provided between the clamp 312 and the electrode 313 to prevent short circuit between the clamp 312 and the electrode 313 during charging, and to ensure the safe operation of the charging process;

[0073] Charging complete: When the battery cell 1 is fully charged, the cylinder 311 retracts, causing the clamping plate 312 and the terminal head 313 to move away from the battery cell 1, and then the battery cell 1 can be removed from the positioning groove 21.

[0074] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0075] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only used to help understand the method and core ideas of this utility model.

[0076] The above are merely preferred embodiments of this utility model. It should be noted that, due to the limitations of written expression, and the existence of an infinite number of specific structures, those skilled in the art can make several improvements, modifications, or variations without departing from the principle of this utility model, and can also combine the above-mentioned technical features in an appropriate manner. These improvements, modifications, variations, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered as protection of this utility model.

Claims

1. A charging clamp for secondary batteries, characterized in that, include: Positioning seat (2), the positioning seat (2) is provided with positioning groove (21), the positioning groove (21) is used to place battery cell (1) to facilitate accurate positioning of battery cell (1); The clamping assembly (3) includes a first clamping assembly (31) and a second clamping assembly (32); the first clamping assembly (31) and the second clamping assembly (32) are symmetrically arranged on both sides of the positioning seat (2), and the first clamping assembly (31) and the second clamping assembly (32) cooperate with each other to securely clamp the battery cell (1) from both sides and charge it; The clamp base (4) is provided on the positioning seat (2) and the clamp assembly (3). The clamp base (4) is used to support the entire charging clamp.

2. A charging clamp for a secondary battery according to claim 1, characterized in that, The first clamping assembly (31) includes a cylinder (311), a clamping plate (312), and an end head (313). The bottom of the cylinder (311) is fixed on the clamp base (4), and the output end of the cylinder (311) is arranged in a horizontal direction; the clamp plate (312) is arranged on the output end of the cylinder (311), and the clamp plate (312) is arranged in a vertical direction; the pole head (313) is arranged vertically on the clamp plate (312), and the pole head (313) is arranged in a horizontal direction; The second clamping component (32) is configured in the same way as the first clamping component (31).

3. A charging clamp for a secondary battery according to claim 2, characterized in that, The electrode head (313) is provided with an elastic component (5), which is located at the end of the electrode head (313) that contacts the battery cell (1).

4. A charging clamp for a secondary battery according to claim 3, characterized in that, The electrode head (313) is provided with a guide hole (6), and the elastic component (5) is provided in the guide hole (6).

5. A charging clamp for a secondary battery according to claim 4, characterized in that, The elastic component (5) includes a top post (51) and a spring sheet (52); One end of the top post (51) is located inside the guide hole (6), and the other end of the top post (51) is located outside the guide hole (6). One end of the spring plate (52) is located at the bottom of the guide hole (6), and the other end of the spring plate (52) is connected to the top post (51). The top post (51) can elastically extend and retract into the guide hole (6) through the spring plate (52).

6. A charging clamp for a secondary battery according to claim 1, characterized in that, The number of positioning grooves (21) is several, and the positioning grooves (21) are evenly distributed along the length direction of the positioning seat (2).

7. A charging clamp for a secondary battery according to claim 2, characterized in that, The number of electrode heads (313) is several, and the installation position of the electrode heads (313) is adapted to the battery cell (1).

8. A charging clamp for a secondary battery according to claim 1, characterized in that, The fixture base (4) is provided with a positioning groove (41). The opening of the positioning groove (41) is trapezoidal. The inner diameter of the positioning groove (41) is adapted to the outer diameter of the positioning seat (2). The positioning seat (2) is located in the positioning groove (41).

9. A charging clamp for a secondary battery according to claim 2, characterized in that, An insulating sleeve (7) is provided on the clamp (312). The insulating sleeve (7) is disposed between the clamp (312) and the pole (313). The insulating sleeve (7) is used for insulation between the clamp (312) and the pole (313).

10. A charging clamp for a secondary battery according to claim 5, characterized in that, The top of the top column (51) is hemispherical.

Images