CN220553544U

CN220553544U - Anti-loosening structure, battery core module and battery

Info

Publication number: CN220553544U
Application number: CN202322192473.3U
Authority: CN
Inventors: 吴荻; 严超群; 高金星; 刘杰
Original assignee: Hunan No5 Power New Energy Co ltd
Current assignee: Hunan No5 Power New Energy Co ltd
Priority date: 2023-08-15
Filing date: 2023-08-15
Publication date: 2024-03-01
Anticipated expiration: 2033-08-15

Abstract

The utility model discloses an anti-loosening structure, a battery core module and a battery, wherein the anti-loosening structure comprises two clamping plates, a plurality of tension rods and two mounting plates, the two clamping plates are arranged side by side, the tension rods are arranged between the two clamping plates to limit the two clamping plates to move in the direction away from each other, the two mounting plates are respectively arranged at the top ends of the two clamping plates, and the mounting plates are provided with a plurality of connecting holes. The anti-loosening structure, the battery cell module and the battery can effectively prevent the nickel plate from loosening, and are more convenient to install.

Description

Anti-loosening structure, battery core module and battery

Technical Field

The utility model relates to the technical field of batteries, in particular to an anti-loosening structure, a battery core module and a battery.

Background

The cylindrical battery cell is widely popularized and used in recent years, the cylindrical battery cell is generally assembled into a battery cell module for use, the battery cell module comprises a plurality of battery cell units, each battery cell unit comprises a plurality of battery cell bodies which are stacked, a plurality of nickel sheets are arranged on two sides of each battery cell unit, and the nickel sheets are welded with the end faces of the battery cell bodies to play a role in electric conduction.

However, it has been found that the nickel plate is easily loosened due to impact, vibration or the like during use, and thus the battery cannot normally operate, and in addition, when the cell module is mounted in the battery case, the mounting is troublesome.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides an anti-loosening structure, which not only can effectively prevent the nickel plate from loosening, but also is more convenient for installing the cell module.

The utility model further provides a battery cell module with the anti-loosening structure.

The utility model also provides a battery with the battery cell module.

An anti-loosening structure according to an embodiment of the first aspect of the present utility model includes:

two clamping plates arranged side by side;

the tensioning rods are arranged between the two clamping plates to limit the two clamping plates to move in the direction away from each other;

the two mounting plates are respectively arranged at the top ends of the two clamping plates, and the mounting plates are provided with a plurality of connecting holes.

The anti-loosening structure provided by the embodiment of the utility model has at least the following beneficial effects:

in the utility model, when the battery cell module is assembled, a plurality of battery cell units, for example, two battery cell units are arranged between the two clamping plates in parallel, the length direction of the battery cell body is parallel to the length direction of the tension rod, and the two clamping plates are abutted against one side of the two battery cell units, which is away from each other. According to the anti-loosening structure provided by the embodiment of the utility model, as the two clamping plates are abutted against one side, deviating from the two battery cell units, of the two clamping plates, the two clamping plates are tensioned through the tensioning rod, so that the overall rigidity is improved, the situation that nickel sheets on two sides of each battery cell unit are loosened due to mutual movement between battery cell bodies is reduced, the nickel sheets can be supported by the clamping plates, and further the nickel sheets are effectively prevented from being deformed, so that the nickel sheets are further prevented from loosening.

According to some embodiments of the present utility model, the two clamping plates are each provided with a plurality of through holes, two ends of the tightening rod are respectively arranged on the corresponding through holes on the two clamping plates in a penetrating manner, and locking nuts are connected with the tightening rod on one side, facing away from the two clamping plates, in a threaded manner.

According to some embodiments of the utility model, at least two insulating spacers are arranged between the two clamping plates, wherein the insulating spacers are provided with trepanning and the tensioning rod is sleeved through the trepanning.

According to some embodiments of the utility model, the end faces of the two mounting plates facing away from each other are provided with protrusions corresponding to the connection holes, and the connection holes penetrate through the protrusions.

According to some embodiments of the utility model, the end faces of the two clamping plates facing away from each other are provided with a plurality of reinforcing strips, and the width direction of the reinforcing strips is parallel to the thickness direction of the clamping plates.

According to some embodiments of the utility model, in the reinforcing strips on the same clamping plate, part of the reinforcing strips extend horizontally and part of the reinforcing strips extend vertically.

According to an embodiment of the second aspect of the present utility model, a battery cell module includes:

the anti-loosening structure according to the above embodiment of the present utility model;

the battery cell unit comprises a plurality of battery cell bodies which are stacked in a plurality of groups, each group of battery cell bodies comprises a plurality of battery cell bodies which are arranged side by side, a plurality of nickel sheets are arranged on two sides of each battery cell unit, the nickel sheets are welded with at least one group of end faces of each battery cell body, and the clamping plates are tightly pressed to be close to the nickel sheets of the clamping plates.

The battery cell module provided by the embodiment of the utility model has at least the following beneficial effects:

according to the anti-loosening structure provided by the embodiment of the utility model, as the two clamping plates are abutted against one side, deviating from the two battery core units, of the two clamping plates, the two clamping plates are tensioned through the tensioning rod, so that the integral rigidity is improved, the situation that nickel sheets on two sides of each battery core unit are loosened due to mutual movement between battery core bodies is reduced, the nickel sheets can be supported by the clamping plates, and further the nickel sheets are effectively prevented from being deformed, so that the nickel sheets are further prevented from loosening, in addition, the mounting plate is arranged at the top end of the clamping plates, the mounting plate is positioned above the battery core units, when the battery core module is required to be mounted in a battery shell, a worker grasps the mounting plate, the battery core module can be carried into the shell, the carrying is more convenient, the battery core module is applicable to the situation that the space of the shell is limited, meanwhile, the connecting hole of the battery core module is positioned on the mounting plate at the top end of the battery core module and is close to the opening of the top end of the shell, and the battery core module is more convenient to operate when the battery core module is mounted and fixed through a fastener.

According to some embodiments of the utility model, the two sides of the battery cell unit are provided with brackets, the brackets are provided with a plurality of jacks for inserting the end parts of the battery cell body, the peripheral sides of the jacks are provided with a plurality of limiting parts on the end surfaces of the two brackets, which are opposite, the limiting parts are abutted against the corresponding end surfaces of the battery cell body, and the nickel sheet is provided with a yielding port for the limiting parts to pass through.

According to some embodiments of the utility model, a welding area is formed on the end surface of the nickel sheet corresponding to the battery cell body, the welding area is provided with a welding port penetrating through, the edge of the welding area is arc-shaped, and the arc center line of the edge of the welding area coincides with the center line of the battery cell body.

According to an embodiment of the third aspect of the present utility model, a battery includes:

a housing having an opening at the top end;

according to the battery cell module provided by the embodiment of the utility model, the battery cell module is arranged in the shell, and the connecting hole of the mounting plate is connected with the top end of the side wall of the shell through a fastener;

the cover body is arranged at the top end of the shell so as to close or open the top end of the shell.

The battery provided by the embodiment of the utility model has at least the following beneficial effects:

through adopting the electric core module of the second aspect of the embodiment of the utility model, because two clamping plates are propped against one side of the two electric core units, and the two clamping plates are tensioned through the tensioning rod, the integral rigidity can be further improved, the situation that nickel sheets on two sides of each electric core unit are loosened due to mutual movement between the electric core bodies can be reduced, the nickel sheets can be supported by the clamping plates, and further the nickel sheets can be effectively prevented from deforming, so that the nickel sheets can be further prevented from loosening, in addition, the mounting plate is arranged at the top end of the clamping plates, the mounting plate is positioned above the electric core units, when the electric core module is required to be mounted in a shell of a battery, a worker grasps the mounting plate, the electric core module can be carried into the shell, the carrying is more convenient, and the electric core module is applicable to the situation that the space of the shell is limited, meanwhile, the connecting hole of the electric core module is positioned on the mounting plate at the top end of the electric core module, and is close to the opening of the top end of the shell, so that when the electric core module is mounted and fixed through a fastener, the operation is more convenient, and practicability is better.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of an anti-loosening structure of the present utility model;

FIG. 2 is a schematic diagram of a battery module according to the present utility model;

fig. 3 is a schematic structural diagram of a cell unit according to the present utility model;

FIG. 4 is a schematic view of the structure of the nickel sheet of the present utility model;

FIG. 5 is an enlarged view of FIG. 3 at A;

fig. 6 is a schematic view of the battery with the cover open;

fig. 7 is a schematic view of the battery with the cover closed.

Reference numerals:

an anti-loosening structure 100; a clamping plate 110; reinforcing strips 111; a tension lever 120; a lock bolt 121; a mounting plate 130; a connection hole 131; a convex portion 132; an insulating spacer 140;

a cell unit 200; a cell body 210; nickel flakes 220; a yielding port 221; a weld region 222; a welding port 223; a bracket 230; a limit part 231;

a housing 300;

and a cover 400.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a plurality refers to two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

An anti-loosening structure, a battery cell module, and a battery according to an embodiment of the present utility model are described below with reference to fig. 1 to 7.

The anti-loosening structure 100 according to the embodiment of the first aspect of the present utility model, as shown in fig. 1 and 2, includes two clamping plates 110, a plurality of tension rods 120, and two mounting plates 130.

Wherein, two splint 110 set up side by side, splint 110 can vertical setting, and a plurality of tensioning rods 120 are located between two splint 110 to restrict two splint 110 and remove towards the direction that keeps away from each other, two mounting panel 130 are located the top of two splint 110 respectively, and mounting panel 130 can vertical setting and can be on a parallel with splint 110, and mounting panel 130 is equipped with a plurality of connecting holes 131.

In the present utility model, when assembling the battery cell module, a plurality of battery cell units 200, for example, two battery cell units 200 are placed between two clamping plates 110 in parallel, the length direction of the battery cell body 210 is parallel to the length direction of the tension rod 120, and two clamping plates 110 can abut against the side of the two battery cell units 200 facing away from each other.

According to the anti-loosening structure 100 of the embodiment of the utility model, as the two clamping plates 110 are abutted against one sides of the two battery core units 200, which are away from each other, and the two clamping plates 110 are tensioned through the tensioning rod 120, the overall rigidity of the battery core unit is improved, the nickel plates 220 on two sides of the battery core unit 200 can be reduced due to mutual movement between the battery core bodies 210, the nickel plates 220 can be supported by the clamping plates 110, and further the nickel plates 220 can be effectively prevented from being deformed, so that the nickel plates 220 can be further prevented from being loosened, in addition, the mounting plates 130 are arranged at the top ends of the clamping plates 110, the mounting plates 130 are positioned above the battery core unit 200, when the battery core module is required to be mounted in the battery shell 300, a worker can carry the battery core module into the shell 300, the carrying is more convenient, and because the worker is acting on the mounting plates 130 at the top ends of the battery core module, the worker does not need to lift the bottom ends of the battery core module by hands, and even if the worker does not need to stretch into the shell 300, the space in the shell 300 is smaller, the battery core module is convenient to place and take out, and the battery core module is easy to deform, and the mounting plates are further the mounting plates 130 are more convenient to realize that the top end module is positioned at the top end of the battery module is more convenient, and the mounting plate is more convenient to be connected with the mounting plates 131, and the side plate 300 is more convenient to realize due to the fact that the fastener is more convenient to realize the mounting plate and the fastener is more convenient to be mounted and more convenient to realize due to the side the mounting plate and more practical and easy to be mounted and more convenient.

It should be noted that, the tension rod 120 limits the movement of the two clamping plates 110 in the direction away from each other, that is, after the clamping plates 110 abut against one side of the cell unit 200, the tension rod 120 limits the movement of the two clamping plates 110 only in the direction away from each other, which does not need to limit the movement of the two clamping plates 110 in the direction approaching each other, but can limit the movement of the two clamping plates 110 in the direction approaching each other by the cell unit 200.

In some embodiments of the present utility model, as shown in fig. 1 and 2, each of the two clamping plates 110 is provided with a plurality of through holes, two ends of the tightening rod 120 are respectively disposed through corresponding through holes on the two clamping plates 110, and the tightening rod 120 is screwed with a locking nut 121 on a side of the two clamping plates 110 facing away from each other. In this embodiment, when assembling the cell module, two clamping plates 110 can be respectively attached to one side of the two cell units 200, and then the tension rod 120 is inserted into the corresponding through hole on the two clamping plates 110, and then the locking nut 121 is connected to one side of the two clamping plates 110, which is away from each other, and finally the locking nut 121 is screwed down, so that the clamping plates 110 can be abutted against the cell units 200, and the operation is more convenient, and time and labor are saved. And the degree of the clamping plate 110 propping against the cell unit 200 can be adjusted by rotating the lock nut 121, so that the damage to the cell unit 200 caused by the transition of the clamping plate 110 propping against the cell unit 200 can be avoided, and the defect that the clamping plate 110 propping against the cell unit 200 is insufficient and the effect of preventing the nickel plate 220 from loosening is reduced.

It should be noted that, one end of the tension rod 120 may be directly and fixedly connected to one of the clamping plates 110, the other clamping plate 110 is provided with a through hole, and the other end of the tension rod 120 passes through the corresponding through hole and is in threaded connection with a locking nut 121.

In some embodiments of the present utility model, as shown in fig. 1 and 2, at least two insulating spacers 140 are provided between the two clamping plates 110, the insulating spacers 140 are provided with a socket and the tension rod 120 is sleeved through the socket. Specifically, the insulating spacers 140 are made of an electrically insulating material, and when only one of the battery cells 200 is provided, two insulating spacers 140 may be provided correspondingly, and the two insulating spacers 140 are located between two sides of the battery cell 200 and the clamping plate 110; when the number of the battery cells 200 is two or more, and the battery cells 200 are distributed side by side, the number of the insulating spacers 140 is one more than that of the battery cells 200, wherein two insulating spacers 140 are attached to the side walls of the two clamping plates 110, which are close to each other, and the rest of the insulating spacers 140 are positioned between the two adjacent battery cells 200; when there are two or more battery cells 200 and the battery cells 200 are stacked, only two insulating spacers 140 may be provided, and the two insulating spacers 140 are attached to the sidewalls of the two clamping plates 110 that are close to each other.

In this embodiment, the insulating separator 140 is disposed, so that the situation that the nickel sheet 220 close to the clamping plate 110 directly contacts the clamping plate 110 to cause electric leakage and short circuit and influence the electric conduction of the nickel sheet 220 can be avoided, and the situation that the nickel sheets 220 close to one side of two adjacent battery cells 200 contact each other to cause short circuit and influence the electric conduction of the nickel sheet 220 can be avoided.

In some embodiments of the present utility model, as shown in fig. 1 and 2, the end faces of the two mounting plates 130 facing away from each other are provided with protrusions 132 corresponding to the connection holes 131, and the connection holes 131 penetrate the protrusions 132. Set up protruding portion 132, not only can improve structural strength for connect more firmly, behind the lateral wall of the casing 300 of mounting panel 130 and battery in addition, there is the clearance between the lateral wall of mounting panel 130 and casing 300, and then when need maintaining or changing the electric core module, make things convenient for the staff to stretch the hand to in the clearance and snatch mounting panel 130, and then conveniently take out the electric core module, in addition, there is the clearance between mounting panel 130 and the lateral wall of casing 300, conveniently install elastic rubber pad between splint 110 and the lateral wall of casing 300, thereby can reduce impact and vibration.

In some embodiments of the present utility model, as shown in fig. 1 and 2, the opposite end surfaces of the two clamping plates 110 are provided with a plurality of reinforcing strips 111, and the width direction of the reinforcing strips 111 is parallel to the thickness direction of the clamping plates 110. The structure of the clamping plate 110 can be reinforced by the reinforcing strips 111, so that the damage to the clamping plate 110 can be reduced, and the bending deformation of the clamping plate 110 can be reduced, so that the clamping plate 110 can be better abutted against the cell unit 200. The width direction of the reinforcing strip 111 is parallel to the thickness direction of the clamping plate 110, and thus when the clamping plate 110 has a tendency to bend and deform to apply force to the reinforcing strip 111, the reinforcing strip 111 is not easily bent and deformed, so that the effect of reinforcing the structural strength of the clamping plate 110 is better.

In some embodiments of the present utility model, as shown in fig. 1 and 2, among the reinforcing bars 111 on the same clamping plate 110, a part of the reinforcing bars 111 extends horizontally and a part of the reinforcing bars 111 extends vertically. So arranged, the effect of preventing bending deformation of the clamping plate 110 is better.

According to the battery cell module according to the second aspect of the present utility model, as shown in fig. 2 to 5, the battery cell module comprises the anti-loosening structure 100 and the plurality of battery cell units 200 according to the first aspect of the present utility model, the plurality of battery cell units 200 are clamped between the two clamping plates 110, the battery cell units 200 comprise a plurality of groups of battery cell bodies 210 stacked and arranged, each group of battery cell bodies 210 comprises a plurality of battery cell bodies 210 arranged side by side, a plurality of nickel sheets 220 are arranged on two sides of the battery cell units 200, the nickel sheets 220 are welded with the end surfaces of at least one group of battery cell bodies 210, and the clamping plates 110 are pressed against the nickel sheets 220 close to the clamping plates 110.

According to the anti-loosening structure 100 of the first embodiment of the present utility model, since the two clamping plates 110 are abutted against the sides of the two battery core units 200, and the two clamping plates 110 are tensioned by the tensioning rod 120, the overall rigidity of the battery core module can be improved, the situation that the nickel plates 220 on both sides of the battery core units 200 are loosened due to mutual movement between the battery core bodies 210 can be reduced, the nickel plates 220 can be supported by the clamping plates 110, and further the nickel plates 220 can be effectively prevented from being deformed, so that the situation that the nickel plates 220 are loosened can be further avoided, in addition, the mounting plate 130 is arranged at the top end of the clamping plates 110, the mounting plate 130 is located above the battery core unit 200, when the battery core module needs to be mounted in the battery case 300, a worker grasps the mounting plate 130, so that the battery core module can be carried into the case 300, the carrying is more convenient, and the battery core module is applicable to the situation that the space of the case 300 is limited, and the connecting hole 131 of the battery core module is located on the mounting plate 130 at the top end of the battery core module and is close to the opening of the top end of the case 300, and when the battery core module is mounted and fixed by the fastener, the operation is more convenient and practical.

It should be noted that, since the battery cell module may adopt all the technical solutions of the anti-loosening structure 100 of the embodiment of the first aspect, the battery cell module has at least all the beneficial effects brought by the technical solutions of the embodiment of the first aspect, and these additional beneficial effects are not described herein.

In some embodiments of the present utility model, as shown in fig. 3 to 5, the two sides of the battery cell unit 200 are provided with the brackets 230, the brackets 230 are provided with a plurality of insertion holes into which the ends of the battery cell body 210 are inserted, the opposite end surfaces of the two brackets 230 are provided with a plurality of limiting portions 231 on the peripheral sides of the insertion holes, the limiting portions 231 abut against the corresponding end surfaces of the battery cell body 210, and the nickel sheet 220 is provided with a yielding hole 221 through which the limiting portions 231 pass. In this embodiment, the support 230 is provided with a plurality of insertion holes, the end of the battery cell body 210 is inserted into the insertion holes, and meanwhile, the limiting portion 231 on the periphery of the insertion holes abuts against the end face of the battery cell body 210, so that radial and axial limiting on the battery cell body 210 can be achieved, in addition, the nickel sheet 220 can prevent the battery cell body 210 from rotating by welding the end face of the battery cell body 210, that is, circumferential limiting on the battery cell body 210 is achieved, so that the battery cell body 210 is installed more firmly. The position-limiting part 231 near the nickel sheet 220 passes through the corresponding position-limiting opening 221, so that the nickel sheet 220 can be more closely attached to the end face of the battery cell body 210, the welding effect is better, and the electric conduction effect of the nickel sheet 220 is better.

According to some embodiments of the present utility model, as shown in fig. 4 and 5, a welding area 222 is formed on the end surface of the nickel sheet 220 corresponding to the battery cell body 210, the welding area 222 is provided with a welding hole 223 passing through, the edge of the welding area 222 is in a circular arc shape, and the center line of the circular arc of the edge of the welding area 222 coincides with the center line of the battery cell body 210. The welding area 222 is provided with a through welding opening 223, so that the welding is more convenient and the welding effect is better. The edge of the welding area 222 is arc-shaped, and the arc center line of the edge of the welding area 222 coincides with the center line of the battery cell body 210, so that the end face of the nickel sheet 220 and the end face of the battery cell body 210 are more matched, the attaching effect of the nickel sheet 220 and the end face of the battery cell body 210 is better, and the electric conduction effect is better.

The battery according to the embodiment of the third aspect of the present utility model, as shown in fig. 6 and 7, includes a case 300, a cover 400, and a battery cell module according to the above-described second aspect of the present utility model, wherein the case 300 is provided with an opening at the top end, the battery cell module is disposed in the case 300, the connection hole 131 of the mounting plate 130 is connected with the top end of the sidewall of the case 300 by a fastener, and the cover 400 is disposed at the top end of the case 300 to close or open the top end of the case 300.

Specifically, one end of the cover 400 may rotate to connect the top end of the housing 300, and when the cover 400 rotates, the top end of the housing 300 may be closed or opened, and a side plate may be disposed on the peripheral side of the cover 400, and when the cover 400 closes the top end of the housing 300, the side plate is disposed on the outer side of the side wall of the top end of the housing 300, so as to cover the fastening member between the mounting plate 130 and the side wall of the top end of the housing 300, so that the battery is more attractive. In addition, when the top end of the housing 300 is closed by the cover 400, the side plate of the cover 400 and the side wall of the top end of the housing 300 may be connected by a screw, so that the closing effect is better, and of course, in order to improve the aesthetic property, the screw may be screwed into the side plate of the cover 400.

According to the battery cell module of the second embodiment of the utility model, as the two clamping plates 110 are abutted against one side of the two battery cell units 200, which is away from each other, and the two clamping plates 110 are tensioned through the tensioning rod 120, the overall rigidity of the battery cell module can be improved, the situation that the nickel plates 220 on two sides of the battery cell units 200 are loosened due to mutual movement between the battery cell bodies 210 can be reduced, the nickel plates 220 can be supported by the clamping plates 110, the nickel plates 220 can be effectively prevented from being deformed, so that the nickel plates 220 are further prevented from loosening, in addition, the mounting plates 130 are arranged at the top ends of the clamping plates 110, the mounting plates 130 are positioned above the battery cell units 200, when the battery cell module is required to be mounted in the battery case 300, a worker can grasp the mounting plates 130, so that the battery cell module can be carried into the case 300, the battery cell module is more convenient to carry, and is suitable for the situation that the space of the case 300 is limited, and meanwhile, the connecting holes 131 of the battery cell module are positioned on the mounting plates 130 at the top ends of the battery cell module, and are close to the openings of the top ends of the case 300, and therefore when the battery cell module is mounted and fixed.

It should be noted that, since the battery may adopt all the technical solutions of the battery cell module according to the second aspect of the present utility model, the battery cell module at least has all the beneficial effects brought by the technical solutions of the second aspect of the present utility model, and these additional beneficial effects are not described herein.

It is understood that other constructions and operations of batteries according to embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail herein.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. An anti-loosening structure, comprising:

two clamping plates arranged side by side;

2. The anti-loosening structure according to claim 1, wherein a plurality of through holes are formed in each of the two clamping plates, two ends of the tightening rod are respectively arranged on the corresponding through holes of the two clamping plates in a penetrating manner, and locking nuts are connected to the tightening rod on one sides, facing away from the two clamping plates, in a threaded manner.

3. The anti-loosening structure as claimed in claim 2, wherein at least two insulating spacers are provided between the two clamping plates, the insulating spacers being provided with a socket and the tension rod being sleeved through the socket.

4. A loosening prevention structure as claimed in any one of claims 1 to 3, wherein the end faces of the two mounting plates facing away from each other are provided with protrusions corresponding to the connection holes, and the connection holes penetrate the protrusions.

5. A loosening prevention structure as claimed in any one of claims 1-3, wherein the facing end surfaces of the two clamping plates are each provided with a plurality of reinforcing strips, and the width direction of the reinforcing strips is parallel to the thickness direction of the clamping plates.

6. The anti-loosening structure of claim 5, wherein a portion of the reinforcing strips on the same cleat extend horizontally and a portion of the reinforcing strips extend vertically.

7. A battery cell module, comprising:

the anti-loosening structure according to any one of claims 1 to 6;

the battery cell unit comprises a plurality of battery cell bodies which are stacked in a plurality of groups, each group of battery cell bodies comprises a plurality of battery cell bodies which are arranged side by side, a plurality of nickel sheets are arranged on two sides of each battery cell unit, and the nickel sheets are welded with at least one group of end faces of each battery cell body.

8. The battery cell module of claim 7, wherein the two sides of the battery cell unit are provided with brackets, the brackets are provided with a plurality of jacks for inserting the end parts of the battery cell body, the peripheral sides of the jacks are provided with a plurality of limiting parts on the end faces, facing away from each other, of the two brackets, the limiting parts are abutted against the corresponding end faces of the battery cell body, and the nickel sheet is provided with a yielding port for the limiting parts to pass through.

9. The battery cell module of claim 7, wherein the nickel sheet is formed with a welding zone corresponding to the end face of the battery cell body, the welding zone is provided with a welding port penetrating through, the edge of the welding zone is arc-shaped, and the arc center line of the edge of the welding zone coincides with the center line of the battery cell body.

10. A battery, comprising:

a housing having an opening at the top end;

the battery cell module according to any one of claims 7 to 9, provided in the housing, the connection hole of the mounting plate being connected with the top end of the housing side wall by a fastener;