CN217955996U - Anti-rotation structure of battery terminal - Google Patents

Abstract

The utility model discloses an anti-rotation structure of a battery terminal, which comprises a riveting block, an upper plastic, a light aluminum plate, a lower plastic and a pole. The bottom of the riveting block is provided with a first boss; the upper plastic is opposite to the bottom of the riveting block. There is a first groove on one side of the riveting block, the first groove matches the first boss, and the first boss of the riveting block is embedded in the first groove and connected with the upper plastic mosaic; the upper plastic is far away from the bottom surface of the riveting block. The side is provided with a second boss; the side of the light aluminum plate opposite to the upper plastic is provided with a second groove, the second groove matches the second boss, and the second boss of the upper plastic is embedded in the second groove The interior is inlaid connected with the light aluminum plate; the poles pass through the lower plastic, the light aluminum plate, the upper plastic, and the mounting holes on the riveting block to be riveted with the riveting block in sequence. The utility model does not reduce the local thickness of the riveting block and does not affect the welding, and the anti-rotation of the battery terminal is realized through the cooperative connection between each boss and the groove.

Description

Anti-rotation structure of battery terminal

technical field

The utility model belongs to the technical field of power batteries, in particular to an anti-rotation structure for battery terminals.

Background technique

The riveted battery top cover is generally composed of light aluminum plate, riveted block, upper plastic, lower plastic and pole. Relative rotation easily occurs between the upper plastic, the bare aluminum plate and the riveting block, so it is necessary to limit the rotation between the upper plastic, the light aluminum plate and the riveting block.

The current anti-rotation method for battery terminals is generally to set an upper boss and a lower boss on the upper surface and lower surface of the upper plastic, respectively, to open grooves on the light aluminum plate and the riveting block, and insert the upper boss of the upper plastic into the riveting block In the groove of the light aluminum plate, the lower boss is inserted into the groove of the light aluminum plate, so as to achieve the purpose of limiting the relative rotation between the upper plastic, the light aluminum plate and the riveting block; Groove, the upper plastic opens a through hole, the ceramic column passes through the upper plastic through hole and the two ends are respectively embedded in the groove of the riveting block and the light aluminum plate. For example, in the patent application number 201420582108.1, a first recess is provided on the top cover, and a second recess is provided on the connecting aluminum block, and the two sides of the two insulators are respectively accommodated and fixed in the first recess corresponding to the top cover and the connecting aluminum block. The second concave part realizes the fixation and separation between the top cover sheet and the connecting aluminum block, so as to realize the anti-rotation between the pole and the connecting aluminum block.

But there are certain problems in the existing scheme:

1. Opening grooves on bare aluminum plates and riveting blocks will reduce the strength of structural parts;

2. Since the battery needs to be BUSBAR welded on the riveting block when the battery is assembled into a module, the energy of BUSBAR welding is relatively large, and the local thickness of the riveting block is reduced due to the opening of the groove. After the upper plastic boss is inserted into the groove of the riveting block, it will There is a risk of welding through and melting plastic;

3. In order to prevent welding through and ensure the welding area of the BUSBAR, it is generally necessary to increase the area of the riveting block to avoid the welding area, resulting in an increase in the weight of the top cover, affecting the specific energy of the battery, and causing waste of materials.

Utility model content

In view of this, the utility model proposes an anti-rotation structure of the battery terminal, which is used to solve the problem that the existing anti-rotation structure of the battery terminal reduces the strength of the structural part by opening a groove on the riveting block.

The technical scheme of the utility model is achieved in that:

The utility model discloses an anti-rotation structure of a battery terminal, which comprises a riveting block, an upper plastic, a light aluminum plate, a lower plastic and a pole. Suitable mounting holes;

The bottom surface of the riveting block is provided with a first boss;

The upper plastic is provided with a first groove on the side opposite to the bottom surface of the riveting block, the first groove matches the first boss, and the first boss of the riveting block is embedded in the first groove and connected with the upper plastic mosaic ;The side of the upper plastic away from the bottom surface of the riveting block is provided with a second boss;

There is a second groove on the opposite side of the light aluminum plate to the upper plastic, the second groove matches the second boss, and the second boss of the upper plastic is embedded in the second groove and connected with the light aluminum plate in an inlaid manner;

The poles pass through the lower plastic, the light aluminum plate, the upper plastic, and the mounting holes on the riveting block to be riveted with the riveting block in sequence.

On the basis of the above technical solution, preferably, the first boss and the second boss have the same shape, and the first groove and the second groove have the same shape.

On the basis of the above technical solution, preferably, the first boss is arranged symmetrically with respect to the installation hole on the riveting block, and the first groove is arranged symmetrically with respect to the installation hole on the upper plastic.

On the basis of the above technical solution, preferably, the second boss is arranged symmetrically with respect to the installation hole on the upper plastic, and the second groove is arranged symmetrically with respect to the installation hole of the bare aluminum plate.

On the basis of the above technical solutions, preferably, the first boss and the second boss are overall in the shape of a two-shaped, three-shaped, symmetrical L-shaped, square-shaped, Feng-shaped or zigzag, and the first groove and the second The two grooves are both shaped to match the first boss and the second boss.

On the basis of the above technical solution, preferably, the riveting block is an aluminum block, and the riveting block and the upper plastic are arranged in pairs, and are symmetrical about the vertical center plane of the bare aluminum plate.

On the basis of the above technical solutions, preferably, the light aluminum plate is provided with a liquid injection hole and an explosion-proof valve hole.

On the basis of the above technical solution, preferably, the pole includes a pole cap and a pole body, one end of the pole body is fixedly connected to the pole cap, and a circle of pole grooves is provided on the pole body;

The mounting hole of the riveting block is provided with a riveting boss matching with the pole groove;

The riveting boss on the mounting hole of the riveting block is embedded in the pole groove on the pole body to rivet the pole and the riveting block.

On the basis of the above technical solution, preferably, it also includes an insulating sealing ring, which is arranged between the lower plastic and the pole, and the insulating sealing ring is sleeved on the pole, and the upper and lower end surfaces are respectively connected to the bottom surface of the lower plastic and the bottom of the pole. Pole caps hold up.

On the basis of the above technical solution, preferably, the upper plastic overall has a cuboid structure with an open top, and is sheathed on the outer periphery of the riveting block.

The beneficial effects of the utility model are:

1) Setting the first boss on the riveting block will not reduce the local thickness of the aluminum block, will not reduce its strength, and will not affect the welding. It can be completed with a stamping die and will not increase the difficulty of processing. Compared with the traditional The method of increasing the area of the riveting block to avoid the welding area can reduce the material used for the riveting block, reduce the total weight of the battery, and contribute to the improvement of the specific energy of the battery;

2) On the upper plastic, the first groove matching the first boss and the second boss matching the second groove on the light aluminum plate are set, and the battery is realized through the matching connection between each boss and the groove. The anti-rotation function of the terminal, and each boss and groove can freely choose different shapes according to the needs to enhance the anti-rotation effect.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Figure 1 is an exploded view of the anti-rotation structure of the battery terminal of the present invention under an oblique upward viewing angle;

Fig. 2 is an exploded view of the anti-rotation structure of the battery terminal of the present invention under an oblique downward viewing angle;

Fig. 3 is a structural schematic diagram of a riveting block whose first boss is a triangular shape;

Fig. 4 is a structural schematic diagram of a symmetrical L-shaped riveting block with a first boss;

Fig. 5 is a structural schematic diagram of a riveting block in which the first boss is a square;

Fig. 6 is a structural schematic diagram of a riveting block in which the first boss is in the shape of Feng;

Fig. 7 is a schematic structural view of a riveting block with a wave-shaped first boss.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-2, Figure 1 is an exploded view of the anti-rotation structure of the battery terminal of the present invention from an obliquely upward perspective, and Figure 2 is an exploded view of the anti-rotation structure of the battery terminal of the present invention from an oblique downward perspective. An anti-rotation structure of a battery terminal disclosed by the utility model comprises a riveting block 1, an upper plastic 2, a light aluminum plate 3, a lower plastic 4, an insulating sealing ring 5 and a pair of poles 6, the riveting block 1, the upper plastic 2 , light aluminum plate 3, lower plastic 4, insulating sealing ring 5 and a pair of poles 6 are connected in sequence.

The riveting block 1 is specifically an aluminum block, the bottom surface is provided with a first boss 11, and the first boss 11 is arranged symmetrically with respect to the installation hole 12 on the riveting block 1, and is used for riveting with the upper plastic 2, and the center of the riveting block 1 is provided with The mounting hole 12 matched with the pole 6 is provided with a circle of riveting bosses 121 on the mounting hole 12 .

The utility model does not need to open a groove on the riveting block 1 to avoid opening the groove to reduce the thickness of the aluminum block and reduce the strength of the aluminum block. At the same time, it does not need to increase the area of the riveting block 1 to avoid the welding area, so it will not damage the aluminum block. Influenced by welding, the material used for the riveting block 1 can also be reduced, and the total weight of the battery can be reduced.

The upper plastic 2 is located between the riveting block 1 and the light aluminum plate 3. The upper plastic 2 is provided with a first groove 21 on the side opposite to the bottom surface of the riveting block 1. The first groove 21 matches the first boss 11. The second A boss 11 is inserted into the first groove 21 to realize the mosaic connection between the riveting block 1 and the upper plastic 2 . The upper plastic 2 as a whole has a cuboid structure with an open top, and is sheathed on the outer periphery of the riveting block 1 . The side of the upper plastic 2 away from the bottom surface of the riveting block 1 is provided with a second boss 22 . The first groove 21 corresponds to the position of the second boss 22 on the upper plastic 2 . Mounting holes matching the pole 6 are provided on the upper plastic 2 .

Corresponding to the first boss 11 , the first groove 21 is arranged symmetrically with respect to the installation hole on the upper plastic 2 , and the second boss 22 is arranged symmetrically with respect to the installation hole on the upper plastic 2 .

The light aluminum plate 3 is located between the upper plastic 2 and the lower plastic 4, and the side opposite to the upper plastic 2 is provided with a second groove 31, the second groove 31 matches the second boss 22, and the second boss 22 Embedding the second groove 31 realizes the mosaic connection between the upper plastic 2 and the light aluminum plate 3 . A pair of installation holes 32 matched with a pair of poles 6 are opened on the light aluminum plate. The light aluminum plate 3 is also provided with a liquid injection hole 33 and an explosion-proof valve hole 34 .

In the utility model, a first groove 21 matched with the first boss 11 and a second boss 22 matched with the light aluminum plate 3 are respectively arranged on the upper plastic 2, and the first groove 21 and the second boss 22 are passed through respectively. 22 Realize the mosaic connection between the upper plastic 2 and the riveting block 1, the upper plastic 2 and the light aluminum plate 3, without opening a groove on the riveting block 1, you can pass the riveting block 1 and the upper plastic 2, and the light aluminum plate 3. The anti-rotation function of the battery terminal is realized by the mating connection between the platform or the groove.

Corresponding to the second boss 22 , the second groove 31 is arranged symmetrically with respect to the mounting hole 32 of the bare aluminum plate 3 . The first boss 11 and the second boss 22 have the same shape, and the corresponding first groove 21 and the second groove 31 also have the same shape, and each boss and groove can freely choose different shapes according to requirements. For example, the first boss 11 and the second boss 22 can be in the shape of two characters, three characters, symmetrical L shape, square shape, square shape, grid shape, wave shape or zigzag shape.

Please refer to Figures 3 to 7, Figure 3 shows a schematic structural view of a riveting block 1 with a three-shaped first boss 11, and Figure 4 shows a schematic structural view of a riveting block 1 with a symmetrical L-shaped first boss 11 , Fig. 5 shows a schematic view of the structure of the first boss 11 of the riveting block 1 in the shape of a mouth, Fig. 6 shows a schematic view of the structure of the first boss 11 of the riveting block 1 of the shape of the word Feng, and Fig. 7 shows the first The boss 11 is a structural schematic diagram of the corrugated riveting block 1 . The second boss 22 , the first groove 21 and the second groove 31 are all shapes corresponding to the first boss 11 . The anti-rotation effect can be enhanced by selecting a suitable shape of bosses and grooves. For example, the anti-rotation effects of bosses and grooves in shapes such as three-shaped and square-shaped are better than those of two-shaped bosses and grooves.

Since the poles 6 are a pair, the riveting block 1 and the upper plastic 2 are also arranged in pairs, and are symmetrical about the vertical center plane of the light aluminum plate 3, so as to realize the fixing of a pair of poles 6.

The lower plastic 4 is located between the bare aluminum plate 3 and the pair of poles 6 , and the lower plastic 4 is provided with a pair of installation holes matching the pair of poles 6 . The lower plastic 4 is also provided with through holes corresponding to the liquid injection hole 33 and the explosion-proof valve hole 34 .

A pair of insulating sealing rings 5 are arranged between the lower plastic 4 and the pole 6. The insulating sealing rings 5 are respectively sleeved on the pair of poles 6, and the two end faces of the insulating sealing ring 5 are respectively connected to the lower plastic 4. The bottom surface of the pole 6 and the pole cap 61 of the pole 6 resist to play a role of sealing and insulation.

A pair of poles 6 pass through the insulating sealing ring 5, the lower plastic 4, the light aluminum plate 3, the upper plastic 2 and the installation holes on the riveting block 1 and are riveted with the riveting block 1 in turn.

Specifically, as shown in FIG. 2 , the pole 6 includes a pole cap 61 and a pole body 62, one end of the pole body 62 is fixedly connected to the pole cap 61, and a circle of poles is provided on the pole body 62. The pole groove 621 ; the pole groove 621 is matched with the riveting boss 121 on the mounting hole 12 of the riveting block 1 . The riveting boss 121 is inserted into the pole groove 621 on the pole body 62 to rivet the pole 6 and the riveting block 1 .

The working principle of the utility model is:

The first boss 11 on the lower surface of the riveting block 1 is embedded in the first groove on the upper surface of the upper plastic 2 so that the riveting block 1 is inlaid connected with the upper plastic 2, and the second boss on the lower surface of the upper plastic 2 is embedded on the light aluminum plate 3 In the second groove 31 on the surface, the upper plastic 2 and the light aluminum plate 3 are mosaically connected, the insulating sealing ring 5 is sleeved on the pole and embedded in the mounting hole of the lower plastic, and the pole 6 passes through the lower plastic 4, light The installation holes on the aluminum plate 3, the upper plastic 2 and the riveting block 1 are riveted with the riveting block. Due to the inlay fit between the first boss, the first groove, the second boss, and the second groove, there will be no relative between the riveting block 1 and the upper plastic 2, and between the upper plastic 2 and the light aluminum plate 3. Rotate to achieve the effects of reinforcement and anti-rotation between the riveting block 1 of the battery terminal, the upper plastic 2 and the light aluminum plate 3 .

The above description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (10)

1. The utility model provides an anti-rotation structure of battery terminal, includes riveting piece (1), goes up plastic (2), light aluminum plate (3), lower plastic (4) and a pair of utmost point post (6), all set up the mounting hole with utmost point post (6) looks adaptation on riveting piece (1), last plastic (2), light aluminum plate (3), lower plastic (4), its characterized in that:

the bottom surface of the riveting block (1) is provided with a first boss (11);

a first groove (21) is formed in one side, opposite to the bottom surface of the riveting block (1), of the upper plastic (2), the first groove (21) is matched with the first boss (11), and the first boss (11) is embedded into the first groove (21) to enable the riveting block (1) to be connected with the upper plastic (2) in an embedded mode; a second boss (22) is arranged on one side, away from the bottom surface of the riveting block (1), of the upper plastic (2);

a second groove (31) is formed in one side, opposite to the upper plastic (2), of the smooth aluminum plate (3), the second groove (31) is matched with a second boss (22), and the second boss (22) is embedded into the second groove (31) to enable the upper plastic (2) to be connected with the smooth aluminum plate (3) in an embedded mode;

the pole (6) sequentially penetrates through the lower plastic (4), the smooth aluminum plate (3), the upper plastic (2) and the mounting hole in the riveting block (1) to be riveted with the riveting block (1).

2. The rotation prevention structure of a battery terminal according to claim 1, wherein the first boss (11) and the second boss (22) are identical in shape, and the first recess (21) and the second recess (31) are identical in shape.

3. The anti-rotation structure of the battery terminal according to claim 2, wherein the first bosses (11) are symmetrically arranged with respect to the mounting holes (12) on the riveting block (1), and the first grooves (21) are symmetrically arranged with respect to the mounting holes on the upper plastic (2).

4. An anti-rotation structure of a battery terminal according to claim 2, wherein the second bosses (22) are symmetrically arranged about the mounting holes on the upper plastic (2), and the second grooves (31) are symmetrically arranged about the mounting holes of the plain aluminum plate (3).

5. The anti-rotation structure of a battery terminal according to claim 3 or 4, wherein the first boss (11) and the second boss (22) are integrally in a shape of a Chinese character 'bi', a 'tri', a symmetrical L ', a square, a Chinese character feng', or a saw-tooth, and the first groove (21) and the second groove (31) are both in a shape matching with the first boss (11) and the second boss (22).

6. The anti-rotation structure of the battery terminal according to claim 1, wherein the riveting block (1) is an aluminum block, and the riveting block (1) and the upper plastic (2) are arranged in pairs and are symmetrical about a vertical center plane of the smooth aluminum plate (3).

7. An anti-rotation structure of a battery terminal according to claim 1, wherein the smooth aluminum plate (3) is provided with a liquid injection hole (33) and an explosion-proof valve hole (34).

8. The anti-rotation structure of the battery terminal according to claim 1, wherein the pole (6) comprises a pole cap (61) and a pole body (62), one end of the pole body (62) is fixedly connected with the pole cap (61), and a circle of pole groove (621) is formed in the pole body (62);

a riveting boss (121) matched with the pole column groove (621) is arranged on the mounting hole (12) of the riveting block (1);

the riveting boss (121) is embedded into the pole groove (621) on the pole body (62) to rivet the pole (6) and the riveting block (1).

9. The anti-rotation structure of the battery terminal according to claim 8, further comprising an insulating seal ring (5) disposed between the lower plastic (4) and the terminal post (6), wherein the insulating seal ring (5) is sleeved on the terminal post (6), and the upper and lower end surfaces of the insulating seal ring respectively abut against the bottom surface of the lower plastic (4) and the terminal post cap (61) of the terminal post (6).

10. The anti-rotation structure of the battery terminal according to claim 1, wherein the upper plastic (2) is of a cuboid structure with an open top and is sleeved on the periphery of the riveting block (1).

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