Battery clamp

Abstract

The utility model provides a battery clamp. The battery clamp comprises a bottom plate, a fixing end arranged at one end of the bottom plate and a clamping end arranged at the other end of the bottom plate, a cavity used for clamping a battery is formed between the clamping end and the fixing end, the clamping end moves on the bottom plate to apply clamping force into the cavity, the clamping end comprises a fixing plate, a spring and a clamping block, and the fixing plate is arranged on the fixing plate. The fixing plate is connected with the bottom plate, the clamping block is located on the side, close to the cavity, of the fixing plate, and the spring is connected between the fixing plate and the clamping block in an abutting mode. According to the utility model, the clamping end is pushed to act by using the spring, and the battery is automatically clamped by using the elasticity of the spring, so that the workload of manually screwing the screw rod is reduced, and the damage to the battery caused by overlarge thrust of the cylinder is also avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core processing, in particular to a battery clamp. Background Art

[0002] At present, lithium battery automotive power batteries mainly use square batteries with hard shells, and the processing methods of battery cells include baking, welding, bonding, testing, etc. Among them, in order to ensure the overall strength and thermal insulation performance when the battery cells are assembled into modules, the battery cells and thermal insulation pads need to be connected through a gluing process, and the square battery needs to be clamped by a fixture during this process.

[0003] The clamp includes a base plate for placing batteries, a fixed end arranged at one end of the base plate, and a clamping end arranged at the other end of the base plate. A cavity for clamping batteries is formed between the clamping end and the fixed end. The clamping end is displaced on the base plate to apply a clamping force to the cavity.

[0004] Existing methods of driving the clamping end to move include screws or cylinders. The clamping end is installed on the base plate by a screw, and the screw is manually rotated to push the clamping end to move, applying clamping force to the battery. At the same time, the release of the clamping force is also achieved by rotating the screw in the opposite direction. This manual operation method has complicated steps and low efficiency. When using a cylinder to drive the clamping end to move, the cylinder stroke is designed based on the smallest battery size. Once the selection is determined, the cylinder stroke is certain. When clamping large-sized batteries, the clamping force will be too large, and the sudden occurrence of the clamping force will cause damage to the battery. Utility Model Content

[0005] The utility model aims to provide a battery clamp which optimizes the structure of driving the displacement of the clamping end, thereby reducing manual operation and avoiding excessive clamping force.

[0006] The technical solution of the utility model is: a battery clamp, including a base plate, a fixed end arranged at one end of the base plate, and a clamping end arranged at the other end of the base plate, a cavity for clamping the battery is formed between the clamping end and the fixed end, the clamping end is displaced on the base plate to apply a clamping force to the cavity, the clamping end includes a fixed plate, a spring and a clamping block, the fixed plate is connected to the base plate, the clamping block is located on a side of the fixed plate close to the cavity, and the spring abuts between the fixed plate and the clamping block.

[0007] In the above scheme, the clamping end is pushed by a spring to move, and the elasticity of the spring is utilized to automatically clamp the battery, thereby reducing the workload of manually screwing the screw and preventing damage to the battery due to excessive cylinder thrust.

[0008] Preferably, the battery clamp also includes an unlocking mechanism, and a first inclined surface is provided on the clamping block, and the first inclined surface is arranged toward one side of the cavity. The unlocking mechanism extends and contracts in a direction perpendicular to the clamping force to form a clamping state and a loosened state. In the clamping state, the unlocking mechanism retracts and moves away from the first inclined surface, and the clamping block moves toward the fixed end. In the loosened state, the unlocking mechanism extends and contacts the first inclined surface, and the clamping block moves toward the fixed end.

[0009] Preferably, the unlocking mechanism includes an axially retractable driving member and an unlocking block installed on the power output end of the driving member, the unlocking block is provided with a second inclined surface adapted to the first inclined surface, and the driving member is installed on the side of the base plate.

[0010] Preferably, a rubber pad is provided on a surface of the clamping block facing the cavity.

[0011] Preferably, the clamping block and the bottom plate cooperate with each other via a slide rail, and the slide rail extends along the direction of the clamping force.

[0012] Preferably, the clamping end also includes a positioning rod, one end of which passes through the fixed plate and is threadedly connected to the clamping block, and the other end of the positioning rod extends to the outside of the fixed plate. The positioning rod and the fixed plate are clearance-matched, and the spring is sleeved on the positioning rod.

[0013] Preferably, supporting plates are provided on both sides of the bottom plate, one end of the supporting plate is connected to the fixed end, and the other end of the supporting plate extends toward the clamping end.

[0014] Preferably, the height of the support plate is lower than the height of the fixed end.

[0015] Compared with the related art, the beneficial effects of the utility model are:

[0016] 1. By using the spring to push the clamping end to move, the elasticity of the spring is used to automatically clamp the battery, reducing the workload of manually screwing the screw and avoiding damage to the battery caused by excessive cylinder thrust;

[0017] Second, an unlocking mechanism is added. When the clamping end cannot automatically retract, the unlocking mechanism is used to unlock the battery and automatically release the battery.

[0018] 3. The displacement of the clamping block is guided by the slide rail to ensure the stability and smoothness of the clamping block during movement;

[0019] Fourth, a positioning rod is connected between the fixed plate and the clamping block, and the spring is sleeved on the positioning rod. On the one hand, the position of the spring is limited by the positioning rod to make the spring deform better. On the other hand, the positioning rod guides the movement of the clamping block. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of the battery clamp provided by the utility model.

[0021] In the accompanying drawings: 1. bottom plate; 2. fixed end; 3. clamping end; 31. fixed plate; 32. spring; 33. clamping block; 34. first inclined surface; 35. rubber pad; 36. positioning rod; 4. cavity; 5. unlocking mechanism; 51. driving member; 52. unlocking block; 53. second inclined surface; 6. slide rail; 7. support plate; 8. battery. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear in the following text, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.

[0023] like Figure 1 As shown, a battery clamp provided in this embodiment includes a base plate 1, a fixed end 2, a clamping end 3, a cavity 4, an unlocking mechanism 5, a slide rail 6 and a support plate 7.

[0024] The base plate 1 is placed on a workbench, one end of the base plate 1 in the length direction is fixedly connected to the fixed end 2, and the other end in the length direction is movably connected to the clamping end 3. The fixed end 2 is a plate body fixedly connected to the base plate 1. The slide rail 6 includes a track and a slider slidably arranged on the track. The base plate 1 is provided with a track of the slide rail 6, and the track extends between the clamping end 3 and the fixed end 2. Support plates 7 are arranged on both sides of the width direction of the base plate 1, one end of the support plate 7 is connected to the fixed end 2, and the other end of the support plate 7 extends toward the clamping end 3. The height of the support plate 7 is lower than the height of the fixed end 2, and the battery 8 is placed on the support plate 7, and one end of the battery 8 is in contact with the fixed end 2, and the other end is in contact with the clamping end 3.

[0025] The clamping end 3 includes a fixed plate 31, a spring 32, a clamping block 33, a first inclined surface 34, and a rubber pad 35. The fixed plate 31 has the same structure as the fixed end 2, and the two are fixedly connected to opposite sides of the bottom plate 1. The clamping block 33 is connected to the slider, and the clamping block 33 is located on the inner side of the fixed plate 31. In one embodiment, the fixed plate 31 and the clamping block 33 are connected by the spring 32. In another embodiment, in order to ensure smoother displacement of the clamping block 33 and effective deformation of the spring 32, a positioning rod 36 is added, and the positioning rod 36 can be a screw. One end (screw) of the positioning rod 36 passes through the fixed plate 31 and is threadedly connected to the clamping block 33, and the other end (bolt head) of the positioning rod 36 extends to the outer side of the fixed plate 31, and the head of the bolt is larger than the through hole on the fixed plate 31. The screw of the positioning rod 36 is clearance-matched with the fixed plate 31, and the spring 32 is sleeved on the positioning rod 36. There are two sets of positioning rods 36 and springs 32. A cavity 4 for clamping a battery is formed between the clamping block 33 and the fixed end 2. A first inclined surface 34 is provided on one side of the clamping block 33 close to the cavity 4. A rubber pad 35 is provided on one side of the clamping block 33 close to the cavity 4. The rubber pad 35 is located at the upper end of the clamping block 33, and the first inclined surface 34 is located at the lower end of the clamping block 33. The spring 32 can push the clamping block 33 to move so as to apply a clamping force F to the battery 8 placed in the cavity 4.

[0026] The travel of the spring 32 is designed according to the minimum size of the battery, and even in the clamping of a large size battery, the elastic force output by the spring 32 will not cause significant damage to the battery. In addition, the rubber pad 35 is used for buffering to better protect the battery.

[0027] The unlocking mechanism 5 is placed beside the bottom plate 1 and is arranged near the clamping block 33. The unlocking mechanism 5 includes an axially retractable driving member 51 and an unlocking block 52 installed on the power output end of the driving member 51. In this embodiment, the unlocking block 52 is provided with a second inclined surface 53 adapted to the first inclined surface 34. In other embodiments, the unlocking block 52 can also be a square block, on which a plane adapted to the first inclined surface 34 is arranged, and the extended square block slides on the first inclined surface 34 to achieve unlocking. A roller in contact with the first inclined surface 34 can also be arranged at the end of the plane (at the two adjacent plane corners on the square).

[0028] The driving member 51 is a cylinder, which extends and contracts in a direction perpendicular to the clamping force to form a clamping state and a loosening state. When the battery 8 needs to be loosened, the driving member 51 is started to extend, pushing the unlocking block 52 to move in the direction of the cavity 4, so that the second inclined surface 53 contacts the first inclined surface 34. During the contact process, the unlocking block 52 pushes the clamping block 33 to move in the direction of the fixed plate 31, and the clamping block 33 releases the battery 8, and the spring 32 is compressed, thereby forming a loosening state. When the battery 8 needs to be clamped, the driving member 51 retreats, the second inclined surface 53 moves away from the first inclined surface 34, and the spring 32 extends when there is no external force, and the clamping block 33 moves in the direction close to the fixed end 2 to clamp the battery 8, forming a clamping state.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A battery clamp, comprising a bottom plate, a fixed end provided at one end of the bottom plate, and a clamping end provided at the other end of the bottom plate, wherein a cavity for clamping a battery is formed between the clamping end and the fixed end, and the clamping end is displaced on the bottom plate to apply a clamping force to the cavity, characterized in that: The clamping end comprises a fixing plate, a spring and a clamping block, wherein the fixing plate is connected to the bottom plate, the clamping block is located on a side of the fixing plate close to the cavity, and the spring abuts between the fixing plate and the clamping block.

2. The battery clamp according to claim 1, characterized in that: It also includes an unlocking mechanism, wherein a first inclined surface is provided on the clamping block, and the first inclined surface is arranged toward one side of the cavity. The unlocking mechanism extends and contracts in a direction perpendicular to the clamping force to form a clamping state and a loosening state. In the clamping state, the unlocking mechanism retracts and moves away from the first inclined surface, and the clamping block moves toward the fixed end. In the loosening state, the unlocking mechanism extends out and contacts the first inclined surface, and the clamping block moves toward the fixed end.

3. The battery clamp according to claim 2, characterized in that: The unlocking mechanism comprises an axially retractable driving member and an unlocking block mounted on the power output end of the driving member, the unlocking block is provided with a second inclined surface adapted to the first inclined surface, and the driving member is mounted on the side of the base plate.

4. The battery clamp according to claim 1, characterized in that: A rubber pad is provided on one side surface of the clamping block facing the cavity.

5. The battery clamp according to claim 3, characterized in that: The clamping block and the bottom plate are matched with each other via a slide rail, and the slide rail extends along the direction of the clamping force.

6. The battery clamp according to claim 3, characterized in that: The clamping end also includes a positioning rod, one end of which passes through the fixing plate and is threadedly connected to the clamping block, and the other end of the positioning rod extends to the outside of the fixing plate. The positioning rod and the fixing plate are gap-matched, and the spring is sleeved on the positioning rod.

7. The battery clamp according to claim 1, characterized in that: Support plates are arranged on both sides of the bottom plate, one end of the support plate is connected to the fixed end, and the other end of the support plate extends toward the clamping end.

8. The battery clamp according to claim 7, characterized in that: The height of the supporting plate is lower than that of the fixed end.

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