High-conductivity lithium battery contact piece

Abstract

The utility model relates to a high-conductivity lithium battery contact piece, and relates to the technical field of lithium batteries. The contact piece comprises a first positive and negative electrode contact piece and a second positive and negative electrode contact piece, two first sliding grooves are formed in the upper end of the first positive and negative electrode contact piece, first sliding insertion plates are arranged between the side walls of the two first sliding grooves in a sliding mode, and two first insertion grooves are formed in the upper end of the second positive and negative electrode contact piece. A second sliding groove is formed in the lower end of the first positive and negative electrode contact piece, a second sliding insertion plate is slidably arranged between the side walls of the second sliding groove, a second insertion groove is formed in one side of the second positive and negative electrode contact piece, and the position of the first sliding insertion plate can be adjusted; therefore, the situation that the distance between the first positive-negative contact piece and the second positive-negative contact piece or the distance between the first positive-negative contact piece and the second positive-negative contact piece and the connecting piece is error, and connection failure or poor contact occurs is prevented, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a high-conductivity lithium battery contact sheet. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and non-aqueous electrolyte solutions. Due to the highly active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain metallic lithium and are rechargeable.

[0003] The publication number is CN217934146U, a high-conductivity lithium battery contact piece, including a contact piece 1, and the outer side of the contact piece 1 is in contact with a contact piece 2, the outer side of the contact piece 2 is provided with a square hole 1, the outer side of the contact piece 1 is provided with a limiting hole, and the limiting holes are provided in two groups, and the two groups of limiting holes are symmetrically arranged on the outer side of the contact piece 1. The utility model places the contact piece 1 and the contact piece 2 together through a connecting piece 1 fixedly installed on the outer side of the square hole 1, and then the connecting piece 1 can be bent and inserted into the inside of the two groups of limiting holes respectively, so that one end of the connecting piece 1 can still be inside the square hole 1, and the connecting piece 1 is wrapped around the outer side of the contact piece 1, so that the contact piece 1 and the contact piece 2 can be connected and used, and its structure can facilitate personnel to replace the damaged party later, so as to maximize the utilization of resources;

[0004] However, when the two separate contact pieces are used, it is easy for them to not be connected together due to the installation position and installation angle, or the length of the connecting cable, or the connection is not tight enough due to insufficient length, which is inconvenient to use. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a high-conductivity lithium battery contact sheet having an extendable contact sheet portion. When two contact sheets cannot be connected due to length, they can be connected through the extended portion, which is more convenient to use.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A high-conductivity lithium battery contact sheet comprises a first positive and negative electrode contact sheet and a second positive and negative electrode contact sheet, wherein the upper end of the first positive and negative electrode contact sheet is provided with two first sliding grooves, a first sliding plug plate is slidably arranged between the side walls of the two first sliding grooves, the upper end of the second positive and negative electrode contact sheet is provided with two first slots, the lower end of the first positive and negative electrode contact sheet is provided with a second sliding groove, a second sliding plug plate is slidably arranged between the side walls of the second sliding groove, and a second slot is provided on one side of the second positive and negative electrode contact sheet.

[0008] By adopting the above technical solution, the first sliding groove, the first sliding plug plate, the second sliding plug plate, the second slot, the second sliding groove and the first slot cooperate to adjust the position of the first sliding plug plate, thereby preventing the distance between the first positive and negative contact sheets and the second positive and negative contact sheets from being erroneous, resulting in failure to connect or poor contact.

[0009] In a preferred example, the utility model can be further configured as follows: a plurality of limit grooves are provided on one side of the two first sliding plug plates, and two limit plates are slidably provided on one side of the second positive and negative contact sheets.

[0010] By adopting the above technical solution, the limiting plate and the limiting groove cooperate, and the limiting plate is inserted into the limiting groove, so that the first sliding plug plate and the second positive and negative contact sheets can be fixed.

[0011] In a preferred example, the utility model can be further configured as follows: two movable grooves are opened on one side of the second positive and negative contact sheets, and movable blocks are slidably arranged between the side walls of the two movable grooves, and the two movable blocks are respectively fixed to two limit plates.

[0012] By adopting the above technical solution, the moving groove and the moving block are slidably matched, which can improve the movement stability of the limiting plate.

[0013] In a preferred example, the utility model can be further configured as follows: the inner top wall and the inner bottom wall of the two movable grooves are fixedly connected with a plurality of arc-shaped stoppers, and the upper ends and the lower ends of the two movable blocks are fixedly connected with limiting spring pieces.

[0014] By adopting the above technical solution, the limiting spring piece and the arc-shaped stop block can limit the position of the moving block to prevent the limiting plate from sliding in the absence of external force.

[0015] In a preferred example, the utility model can be further configured as follows: the inner bottom walls of the two first sliding grooves are each provided with a connecting groove, connecting rods are slidably connected in the two connecting grooves, the upper ends of the two connecting rods are fixed to the lower ends of the two first sliding plug plates, and the lower ends of the two connecting rods are fixed to the upper end of the second sliding plug plate.

[0016] By adopting the above technical solution, the connecting groove and the connecting rod can improve the movement stability of the first sliding plug plate and the second sliding plug plate.

[0017] In a preferred example, the utility model can be further configured as follows: threaded connection holes are provided at the upper ends of the first positive and negative contact sheets and the second positive and negative contact sheets, two half-threaded rods are provided above the first positive and negative contact sheets and the second positive and negative contact sheets, and one side of the four half-threaded rods is fixedly connected with an extrusion spring sheet.

[0018] By adopting the above technical solution, the semi-threaded rod and the extruded spring sheet can clamp the connecting wire, and then the semi-threaded rod is threaded into the threaded connecting hole to achieve connection.

[0019] In a preferred example, the utility model can be further configured as follows: a rotating block is provided above the first positive and negative contact sheets and the second positive and negative contact sheets, the four semi-threaded rods are respectively fixedly connected to the lower ends of the two rotating blocks, and a cross groove is provided at the upper ends of the two rotating blocks.

[0020] By adopting the above technical solution, the cross groove and the rotating block can more conveniently rotate the semi-threaded rod.

[0021] In summary, the present invention includes at least one of the following beneficial technical effects:

[0022] 1. A first sliding groove, a first sliding plug plate, a second sliding plug plate, a second slot, a second sliding groove and a first slot are provided. After the first positive and negative contact sheet and the second positive and negative contact sheet are connected, if the positive and negative positions are offset, the length of the connection is insufficient, or the first positive and negative contact sheet and the second positive and negative contact sheet cannot contact each other, the first sliding plug plate and the second sliding plug plate are slid, the first sliding plug plate slides in the first sliding groove, and the second sliding plug plate slides in the second sliding groove. The positions of the first sliding plug plate and the second sliding plug plate can be adjusted to achieve the connection between the first sliding plug plate and the second sliding plug plate and the second positive and negative contact sheet. The position of the first sliding plug plate can be adjusted to prevent the first positive and negative contact sheet and the second positive and negative contact sheet or the first positive and negative contact sheet and the second positive and negative contact sheet from having an error in the distance between the first positive and negative contact sheet and the second positive and negative contact sheet and the connecting piece, and the situation of failure to connect or poor contact occurs, which is more convenient to use.

[0023] 2. A limit plate, a limit groove, a moving block, a limit spring and a first slot are set. When the first sliding plug plate is inserted into the first slot and reaches a suitable position, the limit plate is pulled, and the limit plate drives the moving block to move. The limit spring is squeezed by the arc block and compressed downward, so that the moving block can pass between the two arc blocks. When the moving block leaves between the two arc blocks, the limit spring returns to its original shape due to its own elastic force. In the absence of external force, the moving block will be located between the four arc blocks, thereby preventing the limit plate from sliding automatically and affecting the connection stability of the first sliding plug plate and the second positive and negative contact sheets. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a first stereogram of the present embodiment;

[0025] Figure 2 is a second stereogram of the present embodiment;

[0026] Figure 3 is a first stereoscopic cross-sectional view of the present embodiment;

[0027] Figure 4 is a second stereoscopic cross-sectional view of the present embodiment;

[0028] Figure 5 This embodiment Figure 4 A partial enlarged view of point A in the middle.

[0029] In the figure, 1, the first positive and negative contact pieces; 2, the second positive and negative contact pieces; 3, the threaded connection hole; 4, the semi-threaded rod; 5, the rotating block; 6, the extrusion spring piece; 7, the cross groove; 8, the first sliding groove; 9, the first sliding plug plate; 10, the first slot; 11, the limit plate; 12, the limit groove; 13, the connecting groove; 14, the connecting rod; 15, the second sliding plug plate; 16, the second slot; 17, the moving groove; 18, the arc-shaped stopper; 19, the moving block; 20, the limit spring piece; 21, the second sliding groove. DETAILED DESCRIPTION

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0031] Example:

[0032] Reference Figure 1-5The utility model discloses a high-conductivity lithium battery contact sheet, comprising a first positive and negative electrode contact sheet 1 and a second positive and negative electrode contact sheet 2. The upper end of the first positive and negative electrode contact sheet 1 is provided with two first sliding grooves 8, and a first sliding plug plate 9 is slidably arranged between the side walls of the two first sliding grooves 8. The upper end of the second positive and negative electrode contact sheet 2 is provided with two first slots 10, and the lower end of the first positive and negative electrode contact sheet 1 is provided with a second sliding groove 21, and a second sliding plug plate 15 is slidably arranged between the side walls of the second sliding groove 21. A second slot 16 is provided on one side of the second positive and negative electrode contact sheet 2. After the first positive and negative electrode contact sheet 1 and the second positive and negative electrode contact sheet 2 are connected, if the positive and negative electrode positions are offset and the length of the connection is When the degree is not enough, or the first positive and negative contact sheet 1 and the second positive and negative contact sheet 2 cannot contact each other, slide the first sliding plug plate 9 and the second sliding plug plate 15, the first sliding plug plate 9 slides in the first sliding groove 8, and the second sliding plug plate 15 slides in the second sliding groove 21, and the positions of the first sliding plug plate 9 and the second sliding plug plate 15 can be adjusted to achieve the connection between the first sliding plug plate 9 and the second sliding plug plate 15 and the second positive and negative contact sheet 2, and the position of the first sliding plug plate 9 can be adjusted to prevent the first positive and negative contact sheet 1 and the second positive and negative contact sheet 2 or the first positive and negative contact sheet 1 and the second positive and negative contact sheet 2 from having an error in the distance with the connector, resulting in failure to connect or poor contact.

[0033] A plurality of limit grooves 12 are provided on one side of the two first sliding plug plates 9, and two limit plates 11 are slidably provided on one side of the second positive and negative contact sheet 2. The limit plates 11 cooperate with the limit grooves 12, and the limit plates 11 are inserted into the limit grooves 12, so as to fix the first sliding plug plates 9 and the second positive and negative contact sheets 2.

[0034] Two movable grooves 17 are provided on one side of the second positive and negative contact sheet 2, and a movable block 19 is slidably arranged between the side walls of the two movable grooves 17. The two movable blocks 19 are respectively fixed to the two limiting plates 11. When the first sliding plug plate 9 is inserted into the first slot 10 and reaches a suitable position, the limiting plate 11 is pulled, and the limiting plate 11 drives the movable block 19 to move. The limiting spring piece 20 is squeezed by the arc-shaped stopper 18 and is pressed downward, so that the movable block 19 can pass between the two arc-shaped stoppers 18. When the movable block 19 leaves between the two arc-shaped stoppers 18, the limiting spring piece 20 returns to its original shape due to its own elastic force. In the absence of external force, the movable block 19 will be located between the four arc-shaped stoppers 18, thereby preventing the limiting plate 11 from sliding automatically and affecting the connection stability of the first sliding plug plate 9 and the second positive and negative contact sheet 2.

[0035] The inner top walls and the inner bottom walls of the two movable grooves 17 are fixedly connected with a plurality of arc-shaped stops 18, and the upper and lower ends of the two movable blocks 19 are fixedly connected with limiting spring pieces 20. The limiting spring pieces 20 and the arc-shaped stops 18 can limit the position of the movable blocks 19 to prevent the limiting plates 11 from sliding in the absence of external force.

[0036] The inner bottom walls of the two first sliding grooves 8 are each provided with a connecting groove 13, and connecting rods 14 are slidably connected in the two connecting grooves 13. The upper ends of the two connecting rods 14 are fixed to the lower ends of the two first sliding plug plates 9, and the lower ends of the two connecting rods 14 are fixed to the upper end of the second sliding plug plate 15. The connecting grooves 13 and the connecting rods 14 can improve the movement stability of the first sliding plug plate 9 and the second sliding plug plate 15.

[0037] A threaded connection hole 3 is provided at the upper end of the first positive and negative contact sheet 1 and the second positive and negative contact sheet 2. Two half-threaded rods 4 are provided above the first positive and negative contact sheet 1 and the second positive and negative contact sheet 2. One side of the four half-threaded rods 4 is fixedly connected with an extrusion spring piece 6. The cable is inserted from the upper part of the gap between the half-threaded rods 4 and slides downward so that the two extrusion spring pieces 6 clamp the wires due to elastic force. The half-threaded rods 4 are rotated to drive the wires to be threaded into the threaded connection hole 3. At the same time, the cable can be wrapped around the surface of the half-threaded rods 4. The half-threaded rods 4 and the extrusion spring pieces 6 can clamp the connecting wires and then thread the half-threaded rods 4 into the threaded connection hole 3 to achieve connection.

[0038] A rotating block 5 is provided above the first positive and negative contact sheet 1 and the second positive and negative contact sheet 2. Four half-threaded rods 4 are fixedly connected to the lower ends of the two rotating blocks 5 respectively. A cross groove 7 is provided at the upper ends of the two rotating blocks 5. The cross groove 7 and the rotating block 5 can make it easier to rotate the half-threaded rod 4.

[0039] The implementation principle of the above embodiment is as follows: after the first positive and negative contact sheet 1 and the second positive and negative contact sheet 2 are connected, if the positive and negative positions are offset, the length of the connection is insufficient, or the first positive and negative contact sheet 1 and the second positive and negative contact sheet 2 cannot contact each other, the first sliding plug plate 9 and the second sliding plug plate 15 are slid, the first sliding plug plate 9 slides in the first sliding groove 8, and the second sliding plug plate 15 slides in the second sliding groove 21, and the positions of the first sliding plug plate 9 and the second sliding plug plate 15 can be adjusted. When the first sliding plug plate 9 is inserted into the first slot 10 and reaches a suitable position, the limiting plate 11 is pulled, and the limiting plate 11 drives the moving block 19 to move, and the limiting spring piece 20 is pressed down and compressed by the extrusion of the arc-shaped stopper 18, so that the moving block 19 It can pass between the two arc-shaped blocks 18. When the moving block 19 leaves between the two arc-shaped blocks 18, the limiting spring piece 20 returns to its original shape due to its own elastic force. In the absence of external force, the moving block 19 will be located between the four arc-shaped blocks 18, thereby preventing the limiting plate 11 from sliding automatically and affecting the connection stability of the first sliding plug plate 9 and the second positive and negative contact sheet 2. The connection between the first sliding plug plate 9 and the second sliding plug plate 15 and the second positive and negative contact sheet 2 can adjust the position of the first sliding plug plate 9, thereby preventing the first positive and negative contact sheet 1 and the second positive and negative contact sheet 2 or the first positive and negative contact sheet 1 and the second positive and negative contact sheet 2 from having an error in the distance with the connecting piece, resulting in failure to connect or poor contact.

[0040] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0041] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A high-conductivity lithium battery contact sheet, comprising a first positive and negative electrode contact sheet (1) and a second positive and negative electrode contact sheet (2), characterized in that: Two first sliding grooves (8) are provided at the upper end of the first positive and negative contact sheet (1), and a first sliding plug plate (9) is slidably arranged between the side walls of the two first sliding grooves (8); two first slots (10) are provided at the upper end of the second positive and negative contact sheet (2); a second sliding groove (21) is provided at the lower end of the first positive and negative contact sheet (1), and a second sliding plug plate (15) is slidably arranged between the side walls of the second sliding groove (21); and a second slot (16) is provided on one side of the second positive and negative contact sheet (2).

2. A high-conductivity lithium battery contact sheet according to claim 1, characterized in that: A plurality of limit slots (12) are provided on one side of the two first sliding plug plates (9), and two limit plates (11) are slidably provided on one side of the second positive and negative electrode contact sheets (2).

3. A high-conductivity lithium battery contact sheet according to claim 2, characterized in that: Two movable grooves (17) are provided on one side of the second positive and negative electrode contact sheet (2), and a movable block (19) is slidably arranged between the side walls of the two movable grooves (17), and the two movable blocks (19) are respectively fixed to the two limit plates (11).

4. A high-conductivity lithium battery contact sheet according to claim 3, characterized in that: The inner top walls and inner bottom walls of the two movable grooves (17) are fixedly connected with a plurality of arc-shaped stoppers (18), and the upper ends and lower ends of the two movable blocks (19) are fixedly connected with limiting spring plates (20).

5. The high-conductivity lithium battery contact sheet according to claim 1, characterized in that: The inner bottom walls of the two first sliding grooves (8) are each provided with a connecting groove (13), and connecting rods (14) are slidably connected in the two connecting grooves (13), and the upper ends of the two connecting rods (14) are fixed to the lower ends of the two first sliding plug plates (9), and the lower ends of the two connecting rods (14) are fixed to the upper end of the second sliding plug plate (15).

6. A high-conductivity lithium battery contact sheet according to claim 1, characterized in that: The upper ends of the first positive and negative electrode contact sheet (1) and the second positive and negative electrode contact sheet (2) are provided with threaded connection holes (3); the upper ends of the first positive and negative electrode contact sheet (1) and the second positive and negative electrode contact sheet (2) are provided with two semi-threaded rods (4); one side of the four semi-threaded rods (4) is fixedly connected with an extrusion spring sheet (6).

7. A high-conductivity lithium battery contact sheet according to claim 6, characterized in that: A rotating block (5) is provided above the first positive and negative electrode contact sheet (1) and the second positive and negative electrode contact sheet (2), the four semi-threaded rods (4) are respectively fixedly connected to the lower ends of the two rotating blocks (5), and the upper ends of the two rotating blocks (5) are provided with a cross groove (7).

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