High-stability lithium battery sealing plate

Abstract

The utility model relates to the technical field of lithium battery components, in particular to a high-stability lithium battery sealing plate which comprises a cover plate and an insulating plate, a plurality of groups of poles are arranged on one side of the cover plate, a plurality of groups of first through holes are oppositely arranged on the cover plate, the plurality of groups of poles are matched with the plurality of groups of first through holes in a sliding mode, and the insulating plate is arranged on the surface of one side, close to the poles, of the cover plate. The first through hole penetrates through the insulating plate, the pole is slidably matched with the insulating plate, an insulating ring is arranged on the side wall of the pole and slidably matched with the first through hole, and a first elastic part is arranged on the side, close to the cover plate, of the insulating ring and matched with the surface of the cover plate in an abutting mode. According to the utility model, the first elastic piece which is abutted against and matched with the cover plate is arranged on the insulating ring, so that the pole and the cover plate can be fixed before welding, and welding is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery component technical field, concretely is a kind of high-stability lithium battery sealing plate. BACKGROUND

[0002] In the Chinese patent with the announcement number CN217134504U, a kind of lithium battery cover plate with good stability is disclosed, including cover plate body, its towards the lower side surface of insulating pad is equipped, there is positive block on the left end of cover plate body top, there is negative block on the right end top, characteristics: on the lower side surface of insulating pad and correspond to the lower side of positive block there is positive connecting piece, negative block lower side has negative connecting piece, positive connecting piece has positive bottom plate and positive pin portion, negative connecting piece has negative bottom plate and negative pin portion;Positive and negative bottom plate are installed together with insulating pad, and positive connecting piece and positive block are electrically conductive, negative connecting piece and negative block are electrically conductive;Positive pin portion has positive pin portion positioning plate, two positive pin strips and positive pin strip fixed plate, negative pin portion has negative pin portion positioning plate, two negative pin strips and negative pin strip fixed plate.Improve the stability and reliability of electrical connection, improve battery overcurrent rate, avoid heating, high safety;Reduce cost, it is convenient to maintain.The positive rivet and negative rivet in the patent are fixedly connected together with cover plate and other structures by the mode of laser welding, so that lithium battery has greater inconvenience when installing.

[0003] Therefore, the utility model designs a kind of high-stability lithium battery sealing plate to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model is aimed at providing a kind of high-stability lithium battery sealing plate to solve the above technical problems.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of high-stability lithium battery sealing plate, including cover plate and insulating plate, the side of the cover plate is equipped with multiple groups of pole, the cover plate is oppositely equipped with multiple groups of first through-hole, multiple groups of the pole and multiple groups of the first through-hole are slidably matched, the insulating plate is located on the surface of the cover plate close to the pole, the first through-hole penetrates the insulating plate, the pole and the insulating plate are slidably matched, the side wall of the pole is equipped with insulating ring, the insulating ring and the first through-hole are slidably matched, the first elastic element is equipped on the side of the insulating ring close to the cover plate, and the first elastic element and the surface of the cover plate are matched with each other abutting.

[0006] Preferably, the side of the cover plate away from the insulating plate is equipped with multiple groups of embedding groove, multiple groups of the embedding groove are arranged around the first through-hole, and the first elastic element and the embedding groove are matched with each other abutting.

[0007] Preferably, the insulating ring is provided with threads, the cover plate is provided with a positioning ring, and the positioning ring is threadedly connected with the outer wall of the insulating ring.

[0008] Preferably, the outer wall of the insulating ring is provided with a plurality of groups of positioning protrusions, and the inner wall of the first through hole is provided with a plurality of groups of positioning grooves matched with the positioning protrusions.

[0009] Preferably, the number of the positioning grooves arranged in the first through hole on the left side of the cover plate is two, and the number of the positioning grooves arranged in the first through hole on the right side of the cover plate is three.

[0010] Preferably, the positioning grooves are arranged at different positions.

[0011] Compared with the prior art, the utility model has the beneficial effects that: the first elastic member arranged on the insulating ring and matched with the cover plate is beneficial to fixing the pole and the cover plate before welding, and facilitates the welding. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0013] Figure 1 It is the overall structure schematic diagram of the utility model;

[0014] Figure 2 It is Figure 1 It is the structure enlarged view of A in Fig. 1;

[0015] Figure 3 It is the cover plate structure plan view of the utility model.

[0016] In the drawings, the components represented by each reference numeral are listed as follows:

[0017] 1-cover plate, 11-insulating plate, 12-first through hole, 13-embedding groove, 14-positioning ring, 2-pole, 21-insulating ring, 22-first elastic member, 3-positioning protrusion, 31-positioning groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0019] In combination Figures 1-3 :

[0020] The utility model provides a high stability lithium cell sealing plate, including cover plate 1 and insulating plate 11, one side of cover plate 1 is equipped with a plurality of groups of pole 2, and a plurality of groups of first through -hole 12 are oppositely arranged on cover plate 1, and a plurality of groups of pole 2 and a plurality of groups of first through -hole 12 are slidably matched, and insulating plate 11 is arranged on the surface of the side of cover plate 1 close to pole 2, first through -hole 12 penetrates insulating plate 11, and pole 2 and insulating plate 11 are slidably matched, and the side wall of pole 2 is equipped with insulating ring 21, and insulating ring 21 and first through -hole 12 are slidably matched, and insulating ring 21 is equipped with first elastic part 22 on the side close to cover plate 1, and first elastic part 22 and the surface of cover plate 1 are matched with each other abutting.

[0021] Further, cover plate 1 is equipped with a plurality of groups of embedding groove 13 on the side away from insulating plate 11, and a plurality of groups of embedding groove 13 are arranged around first through -hole 12, and first elastic part 22 and embedding groove 13 are matched with each other abutting.

[0022] Further, insulating ring 21 is equipped with screw threads, and cover plate 1 is equipped with positioning ring 14, and positioning ring 14 and the outer wall of insulating ring 21 are connected with each other threadedly.

[0023] Further, the outer wall of insulating ring 21 is equipped with a plurality of groups of positioning protrusions 3, and the inner wall of first through -hole 12 is equipped with a plurality of groups of positioning grooves 31 matched with positioning protrusions 3.

[0024] Further, the number of positioning grooves 31 arranged in the first through -hole 12 on the left side of cover plate 1 can be two groups, and the number of positioning grooves 31 arranged in the first through -hole 12 on the right side of cover plate 1 can be three groups.

[0025] Further, the plurality of groups of positioning grooves 31 are arranged at different positions.

[0026] The utility model specifically application example:

[0027] The insulating plate 11 is provided on the side of the cover plate 1 close to the pole 2, and the pole 2 and the cover plate 1 are isolated by the insulating plate 11. The first through hole 12 penetrates the cover plate 1 and the insulating plate 11, and the pole 2 extends out through the first through hole 12. The side wall of the pole 2 is provided with an insulating ring 21 matched with the first through hole 12 to isolate the pole 2. The first elastic member 22 can be made of a material with elastic deformation and insulation, such as rubber. The first elastic member 22 is matched with the side of the cover plate 1 away from the pole 2, and the pole 2 is fixed on the cover plate 1, which is beneficial to fix the relative position between the pole 2 and the cover plate 1 when welding the pole 2 and the cover plate 1. It is convenient for welding. The cover plate 1 is also provided with a groove 13 matched with the first elastic member 22, which is beneficial to avoid the first elastic member 22 protruding from the surface of the cover plate 1, causing the first elastic member 22 to be easily worn. The positioning ring 14 is threadedly connected with the insulating ring 21 extending out of the cover plate 1, and the positioning ring 14 moves along the thread towards the cover plate 1, and the first elastic member 22 is clamped and fixed by matching with the cover plate 1, further fixing the pole 2 and the insulating ring 21. The pole 2 can be fixed with the cover plate 1 without welding.

[0028] The insulating ring 21 and the inner wall of the first through groove are respectively provided with a positioning protrusion 3 and a positioning groove 31, and the positioning protrusion 3 and the positioning groove 31 are matched and matched to avoid the rotation of the insulating ring 21 and the pole 2 in the first through hole 12. The pole 2 includes a positive pole 2 and a negative pole 2, and the positive and negative poles 2 are respectively arranged at opposite ends of the cover plate 1. By arranging different numbers of positioning protrusions 3 on the side wall of the positive and negative poles 2 and the insulating ring 21 and different numbers of positioning grooves 31 in the first through hole 12 on different sides of the cover plate 1, the installation position of the positive and negative poles 2 can be avoided. The installation position of the positive and negative poles 2 can be avoided. A plurality of positioning protrusions 3 are arranged at different angles, which is beneficial to avoid the insertion of the insulating ring 21 with a smaller number of positioning protrusions 3 into the first through hole 12 with a larger number of positioning grooves 31.

[0029] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation of the utility model.

[0030] In the utility model, unless there is explicit provision and limitation, the terms "mounting", "setting", "connecting", "fixing", "screw connection" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements or the interaction relationship of two elements, unless otherwise explicitly limited, the person skilled in the art can understand the specific meaning of the above-mentioned terms in the utility model according to the specific circumstances.

[0031] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-stability lithium battery sealing plate, comprising a cover plate (1) and an insulating plate (11), characterized in that: The cover plate (1) is provided with a plurality of groups of pole columns (2) on one side, a plurality of groups of first through holes (12) are oppositely provided on the cover plate (1), a plurality of groups of the pole columns (2) and a plurality of groups of the first through holes (12) are slidably matched with each other, the insulating plate (11) is arranged on the surface of the cover plate (1) close to the pole columns (2), the first through holes (12) penetrate the insulating plate (11), the pole columns (2) and the insulating plate (11) are slidably matched with each other, the side wall of the pole columns (2) is provided with an insulating ring (21), the insulating ring (21) and the first through holes (12) are slidably matched with each other, the insulating ring (21) is provided with a first elastic member (22) close to one side of the cover plate (1), and the first elastic member (22) and the surface of the cover plate (1) are matched with each other in abutment.

2. The high-stability lithium battery sealing plate according to claim 1, wherein: A plurality of groups of embedding grooves (13) are arranged on the side, away from the insulating plate (11), of the cover plate (1) and surround the first through holes (12), and the first elastic member (22) and the embedding grooves (13) are matched with each other in abutment.

3. The high-stability lithium battery sealing plate according to claim 1, characterized in that: The insulating ring (21) is provided with a thread, and the cover plate (1) is provided with a positioning ring (14), the positioning ring (14) and the outer wall of the insulating ring (21) are threadedly connected with each other.

4. The high-stability lithium battery sealing plate according to claim 1, characterized in that: The outer wall of the insulating ring (21) is provided with a plurality of groups of positioning protrusions (3), and the inner wall of the first through hole (12) is provided with a plurality of groups of positioning grooves (31) matched with the positioning protrusions (3).

5. The high-stability lithium battery sealing plate according to claim 4, characterized in that: The number of the positioning grooves (31) arranged in the first through hole (12) on the left side of the cover plate (1) can be two groups, and the number of the positioning grooves (31) arranged in the first through hole (12) on the right side of the cover plate (1) can be three groups.

6. The high-stability lithium battery sealing plate according to claim 5, characterized in that: The positions of the plurality of groups of the positioning grooves (31) are different from each other.

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