Battery cell clamp

Abstract

The utility model provides a battery cell clamp and belongs to the technical field of batteries. The battery cell clamp comprises a bottom plate used for bearing a battery cell; the two side plates are installed on the two sides of the bottom plate and are the first side plate and the second side plate respectively. And the moving plate is mounted on the first side plate through a clamping mechanism, and the distance between the moving plate and the second side plate is adjusted through the clamping mechanism, so that a clamping space for clamping the battery cell is created between the moving plate and the second side plate. According to the cell clamp, the bottom plate, the first side plate and the second side plate are arranged to form the containing space for stacking the cells, the distance between the movable plate and the second side plate is adjusted through the clamping mechanism, the cells can be tightly pressed between the second side plate and the movable plate, welding is facilitated, and the cell clamp has the cell stacking function and the cell fixing function at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to a battery core clamp. Background Art

[0002] At present, many battery cells need to be stacked before assembly or welding. After stacking the battery cells, the battery cell clamp can be used to move the battery cell position. In the related technology, the battery cell clamp is only used for stacking and moving the battery cells. When the battery cells need to be welded, the battery cells need to be fixed before laser welding. The battery cell clamp cannot meet the needs of fixing the battery cells. Other devices are needed to fix the battery cells for welding, which is more troublesome to operate. Utility Model Content

[0003] The purpose of the utility model is to provide a battery cell clamp to solve the defects of the battery cell clamp in the prior art, so that the battery cell clamp can simultaneously take into account the two functions of stacking battery cells and fixing battery cells. The specific technical solution is as follows:

[0004] The utility model provides a battery cell clamp, comprising: a bottom plate, used for carrying the battery cell; two side plates, installed on both sides of the bottom plate, respectively being a first side plate and a second side plate; a movable plate, installed on the first side plate through a clamping mechanism, and adjusting the distance between the movable plate and the second side plate through the clamping mechanism so as to create a clamping space between the two for clamping the battery cell.

[0005] Optionally, the clamping mechanism is one of a cylinder mechanism, an electric push rod, a linear motor and a screw assembly.

[0006] Optionally, the clamping mechanism is a screw assembly, which includes a first nut, a first screw, a second nut and a second screw, and the first side plate has a first through hole and a second through hole; the first nut is fixed at the first through hole, and the second nut is fixed at the second through hole; one end of the first screw passes through the first nut and abuts against the movable plate, and one end of the second screw passes through the second nut and abuts against the movable plate.

[0007] Optionally, the battery cell fixture further includes a back plate installed on one side of the first side plate and the second side plate.

[0008] Optionally, the battery cell fixture also includes: a first welding positioning plate, used for the first welding of the battery cell; a second welding positioning plate, used for the second welding of the battery cell; a first pad, installed between the first welding positioning plate and the second welding positioning plate, and one side of the first pad is against the battery cell; a second pad, installed on one side of the base plate, and one end of the second pad is against the second side plate.

[0009] Optionally, the first screw rod has a first handle, and the second screw rod has a second handle.

[0010] Optionally, the first side plate has a first long hole, and the second side plate has a second long hole.

[0011] Optionally, the bottom plate has a groove.

[0012] The battery cell clamp provided by the utility model is provided with a bottom plate for carrying the battery cells, and the first side plate and the second side plate are installed on both sides of the bottom plate to form an accommodation space. When stacking the battery cells, the accommodation space can be used to place battery cells of different models, and the battery cells can be placed flat on the bottom plate. After the battery cells are placed in one layer, they can be stacked in multiple layers to place more battery cells. A movable plate is provided, which is installed on the first side plate through a clamping mechanism, and the distance between the movable plate and the second side plate is adjusted through the clamping mechanism. When the battery cells need to be welded, the battery cells are fixed between the movable plate and the second side plate, so that the battery cells are more stable, thereby better performing the welding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of the battery core clamp provided by the utility model;

[0015] Figure 2 This is a schematic diagram of the battery cell fixture provided by the utility model accommodating the first type of battery cell;

[0016] Figure 3 This is a schematic diagram of the battery cell fixture provided by the utility model accommodating the second type of battery cell;

[0017] Figure 4 This is one of the schematic diagrams of the battery cell clamp provided by the utility model when used for welding battery cells;

[0018] Figure 5 This is the second schematic diagram of the battery cell clamp provided by the utility model when used for welding battery cells;

[0019] Figure 6 It is a bottom view of the battery core clamp provided by the utility model when being used for welding battery cores.

[0020] Reference numerals:

[0021] 100, bottom plate; 110, groove;

[0022] 200, first side plate; 210, first through hole; 220, second through hole; 230, first long hole;

[0023] 300, second side plate; 310, second long hole,

[0024] 400, mobile board;

[0025] 500, clamping mechanism; 510, first nut; 520, first screw rod; 521, first handle; 530, second nut; 540, second screw rod; 541, second handle;

[0026] 600, back panel;

[0027] 700, a first welding positioning plate;

[0028] 800, second welding positioning plate;

[0029] 900, first pad;

[0030] 1000, second pad;

[0031] 2000. Battery cells. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on Figure 1The orientation and position of the battery module shown in normal placement are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not 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 cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0037] The battery cell fixture provided in the utility model, see Figure 1 , including a base plate 100, a first side plate and a second side plate installed on both sides of the base plate 100. When the battery cell clamp is used to stack battery cells 2000, an accommodating space is formed between the base plate 100, and when the battery cells 2000 are stacked, the accommodating space can be used to place battery cells 2000 of different models. The battery cells can be placed flat on the base plate 100. After the battery cells 2000 are placed in one layer, they can be stacked in multiple layers to place more battery cells 2000.

[0038] Exemplarily, the battery cell 2000 is a lithium titanate square cylindrical battery. Figure 2-3 The cylindrical side surface of the battery cell 2000 contacts the bottom plate 100 , and the battery cells 2000 are placed in one layer along the plane where the bottom plate 100 is located, and then multiple layers are stacked.

[0039] In one embodiment, when the battery cell 2000 needs to be welded, the battery cell 2000 is placed vertically on the bottom plate 100, and the movable plate 400 and the clamping mechanism 500 are installed. The movable plate 400 is located on the side of the battery cell 2000 close to the first side plate 200, and the position of the movable plate 400 is adjusted by the clamping mechanism 500 so that the movable plate 400 presses the battery cell 2000, so that the battery cell 2000 is fixed between the movable plate 400 and the second side plate 300, which facilitates the welding of the battery cell 2000.

[0040] In one embodiment, the clamping mechanism 500 is one of a cylinder mechanism, an electric push rod, a linear motor and a screw assembly. These devices can adjust the position of the moving plate 400 to achieve the effect of fixing the battery cell 2000.

[0041] In one embodiment, the clamping mechanism 500 is a screw assembly, see Figure 3-Figure 6The screw assembly includes a first nut 510, a first screw 520, a second nut 530 and a second screw 540. The first side plate 200 has a first through hole 210 and a second through hole 220. The first nut 510 is fixed at the first through hole 210, and the second nut 530 is fixed at the second through hole 220. One end of the first screw 520 passes through the first nut 510 and abuts against the first pad 900, and one end of the second screw 540 passes through the second nut 530 and abuts against the first pad 900. The first nut 510 and the first screw 520 are used in conjunction with each other, and the second nut 530 and the second screw 540 are used in conjunction with each other. The first screw 520 and the second screw 540 are rotated to adjust the position of the first pad 900, so that the first pad 900 presses the battery cell 2000 and fixes the battery cell 2000.

[0042] Exemplarily, a bearing is provided on the movable plate 400, so that the first screw 520 and the second screw 540 are detachably connected to the movable plate 400. When the first screw 520 and the second screw 540 move away from the battery cell 2000, the movable plate 400 can be driven to move together.

[0043] Exemplarily, the first nut 510 , the first screw rod 520 , the second nut 530 and the second screw rod 540 are made of stainless steel, and springs are provided on the first screw rod 520 and the second screw rod 540 to facilitate the rotation of the first screw rod 520 and the second screw rod 540 .

[0044] In one embodiment, see Figure 1-Figure 3 The battery cell fixture also includes a back plate 600, which is installed on one side of the first side plate 200 and the second side plate 300. This design makes the accommodating space formed between the bottom plate 100, the first side plate 200, the second side plate 300 and the back plate 600 more complete, and when the battery cells 2000 are stacked, the positions of the battery cells 2000 are better placed.

[0045] In one embodiment, reference Figure 1 The battery cell fixture further includes a first welding positioning plate 700, which is used for the first welding of the battery cell 2000. After the battery cell 2000 is vertically placed on the bottom plate 100, the first screw 520 and the second screw 540 are rotated to adjust the position of the moving plate 400 so that the battery cell 2000 is fixed between the moving plate 400 and the second side plate 300. The first welding positioning plate 700 is placed at one end of the battery cell 2000 for laser welding.

[0046] In one embodiment, the battery cell fixture further includes a first pad 900, a second pad 1000 and a second welding positioning plate 800. Figure 4-6After the battery cell 2000 is welded for the first time using the first welding positioning plate 700, it is necessary to weld the other end of the battery cell 2000. After the battery cell 2000 is turned over after being welded once, the first welding positioning plate 700 is located on one side of the bottom plate 100, and the second welding positioning plate 800 is located on the other end of the battery cell 2000, and the battery cell 2000 is welded using the second welding positioning plate 800.

[0047] Since the area of ​​the first welding positioning plate 700 is larger than the area of ​​the battery cell 2000, the side of the battery cell 2000 cannot abut against the second side plate 300. The first pad 900 is installed between the second side plate 300 and the side of the battery cell 2000, and one end of the first pad 900 abuts against the first welding positioning plate 700. With this design, when the movable plate 400 presses the battery cell 2000, the side of the battery cell 2000 presses against the first pad 900, and the fixed battery cell 2000 is more stable.

[0048] Exemplarily, the height of the first pad 900 does not exceed the length of the battery cell 2000 , so that both ends of the first pad 900 can be clamped between the first welding positioning plate 700 and the second welding positioning plate 800 without affecting the use of the second welding positioning plate 800 .

[0049] At the same time, since the area of ​​the first welding positioning plate 700 is larger than the area of ​​the battery cell 2000, the battery cell 2000 cannot contact the back plate 600. When adjusting the movable plate 400, the battery cell 2000 may shake, resulting in an unstable fixed battery cell 2000. The second pad 1000 is installed, and the second pad 1000 is located on one side of the bottom plate 100. One side of the second pad 1000 abuts against the back plate 600, and the other side of the second pad 1000 abuts against the first welding positioning plate 700. The length of the second pad 1000 is consistent with the length of the first welding positioning plate 700, so that one end of the second pad 1000 abuts against the second side plate 300, and the other end of the second pad 1000 abuts against the movable plate 400. With this design, when the movable plate 400 presses the battery cell 2000, the battery cell 2000 moves in the extension direction of the second pad 1000, and it is not easy to shake and cause the problem of unstable fixation.

[0050] In one embodiment, the first screw rod 520 has a first handle 521 , and the second screw rod 540 has a second handle 541 , which facilitates a person to hold and rotate.

[0051] In one embodiment, the bottom plate 100, the first side plate 200, the second side plate 300 and the back plate 600 are connected by providing countersunk holes and hexagonal bolts, so that the structural connection is stable and not easy to fall apart.

[0052] In one embodiment, the first side plate 200 has a first long hole 230 , and the second side plate 300 has a second long hole 310 . The first long hole 230 and the second long hole 310 are provided to facilitate moving the battery cell 2000 fixture.

[0053] In one embodiment, the bottom plate 100 has a groove 110, which is used to accommodate the residues generated by welding to avoid the problem that the battery cell 2000 is placed unevenly due to the residues on the bottom plate 100. There can be multiple grooves 110, for example, the number of grooves 110 is 2 or 3, and the present invention does not limit this.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A battery cell fixture, characterized in that: include: A bottom plate for carrying the battery cells; Two side panels, installed on both sides of the bottom panel, respectively comprising a first side panel and a second side panel; The movable plate is mounted on the first side plate through a clamping mechanism, and the distance between the movable plate and the second side plate is adjusted through the clamping mechanism to create a clamping space for clamping the battery cell therebetween.

2. The battery cell fixture according to claim 1, characterized in that: The clamping mechanism is one of a cylinder mechanism, an electric push rod, a linear motor and a screw assembly.

3. The battery cell fixture according to claim 2, characterized in that: The clamping mechanism is a screw assembly, and the screw assembly includes a first nut, a first screw, a second nut and a second screw. The first side plate has a first through hole and a second through hole; The first nut is fixed at the first through hole, and the second nut is fixed at the second through hole; One end of the first screw rod passes through the first nut and abuts against the moving plate, and one end of the second screw rod passes through the second nut and abuts against the moving plate.

4. The battery cell fixture according to claim 1, characterized in that: The battery cell fixture further includes a back plate installed on one side of the first side plate and the second side plate.

5. The battery cell fixture according to claim 1, characterized in that: The battery cell fixture also includes: A first welding positioning plate, used for the first welding of the battery cell; A second welding positioning plate, used for the second welding of the battery cell; A first pad is installed between the first welding positioning plate and the second welding positioning plate, and one side of the first pad is against the battery cell; A second pad is installed on one side of the bottom plate, and one end of the second pad abuts against the second side plate.

6. The battery cell fixture according to claim 3, characterized in that: The first screw rod has a first handle, and the second screw rod has a second handle.

7. The battery cell fixture according to claim 1, characterized in that: The first side plate has a first long hole, and the second side plate has a second long hole.

8. The battery cell fixture according to claim 1, characterized in that: The bottom plate is provided with a groove.

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