CN220138551U - Battery pack fixing device - Google Patents

Abstract

The embodiment of the utility model provides a battery component fixing device, and relates to the technical field of batteries. The battery pack fixing device comprises a fixing plate and a pressing plate which are opposite along a first direction Z and are arranged at intervals, an accommodating space for accommodating the battery pack is formed between the fixing plate and the pressing plate, the fixing plate faces to one side of the pressing plate, a mounting plate is arranged on the mounting plate, a supporting surface and a supporting piece are arranged on the mounting plate, the supporting surface is used for supporting a spacer sleeve, the supporting piece is provided with a plurality of supporting pieces and is arranged on the mounting plate at intervals, the supporting piece can elastically stretch and retract along the first direction Z, and the supporting piece protrudes out of the supporting surface to enable the supporting piece to elastically support the single battery. The battery component formed after solidification has better dimensional consistency, and the phenomenon that the insulating skin of the single battery is scratched is difficult to occur in the process of assembling the battery component into a battery pack.

Description

Battery pack fixing device

Technical Field

The embodiment of the utility model relates to the technical field of batteries, in particular to a battery assembly fixing device.

Background

The battery assembly comprises a spacer sleeve and a single battery, shadowless glue (UV glue) is coated between the spacer sleeve and the single battery, and the battery assembly is fixed by using a battery assembly fixing device in the curing process of the UV glue. Because of the dimensional errors among different single batteries, the size difference of the battery assembly formed after solidification is large, and the phenomenon that the insulating skin of the single battery is scratched easily occurs in the process of assembling the battery assembly into a battery pack.

Disclosure of Invention

The embodiment of the utility model provides a battery component fixing device, which has better size consistency of a battery component formed after solidification and is not easy to cause the phenomenon that the insulating skin of a single battery is scratched in the process of assembling the battery component into a battery pack.

In one aspect, an embodiment of the present utility model provides a battery assembly fixing device, where the battery assembly includes a unit battery, a spacer for fixing the unit battery, and a fixing adhesive for adhering the unit battery to the spacer, the battery assembly fixing device includes a fixing plate and a pressing plate that are opposite and spaced along a first direction, an accommodating space for accommodating the battery assembly is formed between the fixing plate and the pressing plate, a mounting plate is disposed on a side of the fixing plate facing the pressing plate, the mounting plate is provided with a supporting surface and a supporting member, the supporting surface is used for supporting the spacer, the supporting member is provided with a plurality of supporting members and is arranged at the mounting plate at intervals, and the supporting member can elastically stretch in the first direction, and protrudes out of the supporting surface, so that the supporting member elastically supports the unit battery.

In some embodiments, the mounting plate is configured as a rectangle, the support members are provided with four, and the four support members are located near four corners of the rectangle, respectively.

In some embodiments, the fixing plate is provided with a mounting hole extending along the first direction, the supporting member comprises a supporting column and a spring, the supporting column is movably connected in the mounting hole, one end of the spring is connected to the mounting hole, and the other end of the spring is connected to the supporting column, so that the supporting column elastically stretches and contracts under the action of the spring.

In some embodiments, the fixing plate is provided with a first side and a second side which are oppositely arranged along a second direction, a first clamping mechanism and a positioning block are respectively arranged on the first side and the second side, the first clamping mechanism and the positioning block are arranged on the surface of the fixing plate facing the pressing plate in a protruding manner, and the first clamping mechanism, the positioning block, the mounting plate and the pressing plate form a containing space for containing the battery component; the positioning block is provided with a single battery positioning surface and a spacer positioning surface, the battery assembly is mounted on the fixing plate, the first clamping mechanism can abut against the spacer and the single battery along the direction facing the positioning block, so that the spacer abuts against the spacer positioning surface, the single battery abuts against the single battery positioning surface, and the first direction is intersected with the second direction.

In some embodiments, the first clamping mechanism includes a clamping block and an elastic member, the clamping block is slidably connected to the fixing plate, the elastic member is connected to the clamping block, and the elastic member is configured to drive the clamping block to slide toward the positioning block so as to abut against the spacer sleeve and the unit battery.

In some embodiments, the clamping block is provided with a sliding hole, the elastic piece comprises a limiting column and a power spring, one end of the limiting column penetrates through the sliding hole to be connected with the fixed plate, the other end of the limiting column is connected with the first end of the power spring, and the second end of the power spring is connected with the sliding hole.

In some embodiments, the mounting plate further comprises a third side and a fourth side disposed opposite along a third direction, the battery assembly fixing device further comprises a second clamping mechanism disposed on the third side, the second clamping mechanism is movable along the third direction toward the battery assembly after the battery assembly is mounted on the fixing plate, so as to resist the spacer bush and the single battery, and the third direction intersects the first direction and the second direction respectively.

In some embodiments, a thimble is connected to a side of the pressing plate facing the fixing plate, the spacer sleeve includes a plurality of corner regions, and when the pressing plate is pressed toward the fixing plate, an end of the thimble is used for pressing the corner regions of the spacer sleeve, so that the spacer sleeve is attached to the fixing plate.

In some embodiments, the whole cuboid structure that is of single battery, the clamp plate orientation is equipped with a plurality of briquetting towards one side of fixed plate, the briquetting corresponds the angle setting of single battery, the briquetting is used for supporting single battery, so that single battery with the spacer sleeve is followed the tight fit of first direction.

In some embodiments, a self-locking clip is further provided on the fixing plate, and the self-locking clip abuts against one side of the pressing plate, which faces away from the fixing plate, so as to press the battery assembly between the fixing plate and the pressing plate.

According to the battery component fixing device and the battery component curing equipment provided by the embodiment of the utility model, the battery component is placed behind the mounting plate, the pressing plate presses one side of the single battery to enable the single battery to move towards the isolation sleeve, the supporting piece elastically supports the opposite side of the single battery to enable the single battery to be attached to the pressing plate, so that the pressing plate is matched with the supporting piece, the thickness of a region, corresponding to the supporting piece, in the battery component along the first direction is adjusted, and the thickness of the region, corresponding to the supporting piece, in different battery components is consistent. The number of the supporting pieces is multiple, the supporting pieces are distributed on the mounting plate at intervals, so that the supporting pieces can simultaneously elastically support the single batteries, and the thicknesses of a plurality of areas corresponding to the supporting pieces in the same battery assembly tend to be consistent, namely the thicknesses of all the areas in the same battery assembly are more uniform. When the battery pack is assembled to the battery pack shell, the problem that the insulating skin of the single battery is broken due to inconsistent thickness of the battery pack is not easy to occur.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a battery assembly fixing device according to an embodiment of the present utility model;

fig. 2 is a partially exploded view of a battery assembly fixing device according to an embodiment of the present utility model;

FIG. 3 is a schematic structural view of a fixing plate according to an embodiment of the present utility model;

FIG. 4 is an exploded view of a portion of a mounting plate according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a platen according to an embodiment of the present utility model;

fig. 6 is a cross-sectional view of a battery pack fixing device according to an embodiment of the present utility model;

fig. 7 is an exploded view of a battery assembly in an embodiment of the present utility model;

FIG. 8 is a cross-sectional view of a battery assembly according to an embodiment of the present application;

fig. 9 is a partial enlarged view of II in fig. 6.

Reference numerals:

10-pressing plates;

11-thimble;

12-briquetting;

20-fixing plates;

20 a-a mounting plate;

201-a first side;

202-a second side;

203-a third side;

204-fourth side;

21-a first clamping mechanism;

211-clamping blocks;

212-limiting columns;

213-a power spring;

214-a sliding hole;

22-a second clamping mechanism;

23-positioning blocks;

23 a-a single battery positioning surface;

23 b-spacer locating surface;

24-support;

241-support columns;

242-springs;

243-mounting holes;

25-supporting surface;

30-self-locking clips;

40-cell assembly;

41-cell;

41 a-angle;

411-pole;

42-isolating sleeve;

42 a-corner regions;

421-connecting the columns;

422-connection face;

423-hollow area.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In embodiments of the utility model, the meaning of "a plurality of" means two or more, and the meaning of "at least one" means one or more, unless specifically defined otherwise.

In the embodiments of the present utility model, the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of description, and are not indicative or implying that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

The battery pack may include a housing and a plurality of battery packs disposed in the housing, and the plurality of battery packs may be arranged in an array and connected in series and/or parallel to provide power to an external device or obtain power from a power grid and store the power in the battery packs. The battery pack can be applied to a hydroelectric power generation system, a thermal power generation system, a wind power generation system and a solar power generation system to store generated electric energy, can also be applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles and the like to provide electric energy for driving motors, and can also be applied to other scenes.

Referring to fig. 1, 2 and 7, the battery assembly 40 includes a single battery 41, a spacer 42 and a fixing adhesive. The unit cell 41 may be provided with a wound bare cell as an energy storage unit constituting a battery pack. The isolation sleeve 42 is disposed on the outer side of the unit cell 41, and at least partially wraps the unit cell 41, so as to fix the unit cell 41. The fixing glue is used for bonding the single battery 41 and the isolation sleeve 42, so that the single battery 41, the isolation sleeve 42 and the fixing glue form an integrated structure.

The fixing glue has high fluidity in the initial state and needs to be solidified. In the related art, in the fixing process, the battery assembly 40 is clamped by a fixing tool, so that the spacer sleeve is more tightly matched with the single battery 41. However, due to poor dimensional uniformity of the different unit cells 41, poor dimensional uniformity of the different spacers (e.g., poor uniformity of length, width, thickness, and flatness of the different cells, different degrees of deformation warpage of the different spacers, etc.), the cured battery assembly 40 is also poor in dimensional uniformity. The phenomenon that the insulating covers of the unit cells 41 are broken easily occurs in the process of assembling the battery assembly 40 into a battery pack.

In view of this, the embodiment of the present utility model provides a battery pack curing apparatus for curing a battery pack 40. The battery pack curing apparatus includes a battery pack fixing device for clamping and fixing the battery pack 40 during the curing process, and a curing device for curing the fixing glue to achieve the adhesion of the unit battery 41 and the spacer and the fixation of the shape of the fixing glue.

The curing device may include a light generator that irradiates the fixing glue with light emitted from the light generator to effect curing of the fixing glue. For example, the fixing glue is shadowless glue, and the fixing device comprises an ultraviolet lamp which emits ultraviolet light and irradiates the fixing glue.

Of course, the fixing glue can also be thermosetting glue, the curing device can also comprise a heater, and the heater is used for heating the fixing glue so as to realize high-temperature curing of the fixing glue. The embodiment of the utility model does not limit the type and the curing mode of the fixing adhesive.

As shown in fig. 1 to 9, the battery assembly fixture includes a fixing plate 20 and a pressing plate 10 disposed opposite to and spaced apart from each other in a first direction Z, and an accommodating space for accommodating a battery assembly 40 is formed between the fixing plate 20 and the pressing plate 10. The fixed plate 20 and the pressing plate 10 are relatively movable in a first direction Z. For example, after the battery assembly 40 is placed in the receiving space, the fixing plate 20 and the pressing plate 10 approach each other in the first direction Z to clamp and fix the battery assembly 40. For another example, after the fixing glue is cured, the fixing plate 20 and the pressing plate 10 are separated from each other in the first direction Z, and the clamping of the battery assembly 40 is released, so that the cured battery assembly 40 is conveniently taken out of the accommodating space.

Illustratively, the fixed plate 20 is positioned below and fixedly disposed, and the platen 10 is positioned above the fixed plate 20 and is movable relative to the fixed plate 20 in the first direction Z.

Illustratively, the fixing plate 20 is provided with a guide post extending along the first direction Z, the pressing plate 10 is provided with a guide hole, and the pressing plate 10 is sleeved in the guide hole through the guide post, so that the pressing plate 10 can slide along the guide post. For example, the pressing plate 10 is rectangular, the four corners of the pressing plate 10 are provided with guide holes, and the fixing plate 20 is provided with guide posts at positions corresponding to the guide holes.

As shown in fig. 1, the battery assembly fixture may further include a self-locking clip 30 provided on the fixing plate 20. When the fixing plate 20 and the pressing plate 10 are close to each other and clamp the battery assembly 40, the self-locking clamp 30 abuts against one side of the pressing plate 10 away from the fixing plate 20 so as to press the battery assembly 40 between the fixing plate 20 and the pressing plate 10, and prevent the pressing plate 10 from being far away from the fixing plate 20 under the driving of the reaction force of the battery assembly 40. After the battery assembly 40 is cured, the self-locking clamp 30 can be opened, so that the self-locking clamp 30 releases the abutting action on the pressing plate 10, and the pressing plate 10 is shifted to be far away from the fixing plate 20 along the first direction Z, so that the battery assembly 40 after the curing is completed can be taken out.

The specific structure of the self-locking clip 30 is not limited in this embodiment of the present utility model, as long as the pressing plate 10 is pressed against a side far from the fixing plate 20 to maintain the relative positions of the pressing plate 10 and the fixing plate 20, and only one of the self-locking clips 30 is illustrated in fig. 1, 2, 6 and 8.

As shown in fig. 3, the side of the fixing plate 20 facing the pressing plate 10 is provided with a mounting plate 20a, and the mounting plate 20a is provided with a support surface 25 and a support piece 24. After the battery assembly 40 is placed on the mounting plate 20a, the supporting surface 25 is used for supporting the spacer 42, and the supporting member 24 is used for supporting the unit battery 41. The support 24 is elastically stretchable along the first direction Z, and the support 24 protrudes out of the support surface 25, so that the support 24 elastically supports the unit cell 41.

After the battery assembly 40 is placed on the mounting plate 20a, the pressing plate 10 presses one side of the single battery 41, so that the single battery 41 moves towards the isolation sleeve 42, the supporting piece 24 elastically supports the opposite side of the single battery 41, the single battery 41 is attached to the pressing plate 10, the pressing plate 10 is matched with the supporting piece 24, the thickness of a region, corresponding to the supporting piece 24, in the battery assembly 40 along the first direction Z is adjusted, the thicknesses of the regions, corresponding to the supporting piece 24, in different battery assemblies 40 are consistent, and the consistency of the prepared battery assemblies 40 is improved.

The number of the supporting members 24 may be plural, and the plurality of supporting members 24 are arranged at intervals on the mounting plate 20a, so that the plurality of supporting members 24 can simultaneously elastically support the single battery 41, and thus the thicknesses of a plurality of areas corresponding to the plurality of supporting members 24 in the same battery assembly 40 tend to be consistent, i.e. the thicknesses of all the areas in the same battery assembly 40 are more uniform. In addition, the thicknesses of the different battery packs 40 fixed by the battery pack fixing device also tend to be uniform, so that the problem of the insulation skin breakage of the unit batteries 41 caused by the non-uniform thickness of the battery packs 40 is not easy to occur when the battery packs 40 are assembled to the battery pack housing.

In adjacent two battery modules 40 in the battery pack case, a single battery 41 included in one battery module 40 is abutted against a spacer 42 included in the other battery module 40. Specifically, the corner 41a of the unit cell 41 in one cell assembly 40 abuts against the spacer 42 in the other cell assembly 40 (for example, the corner 41a of the unit cell 41 contacts the connection face 422 of the spacer 42). Thus, the thickness of the battery assembly 40 in the region where the corners 41a of the unit cells 41 are located directly affects the assembly of the battery assembly 40 in the battery pack.

The cell 41 may have a rectangular parallelepiped shape or other shapes. For convenience of description, only the unit cell 41 is schematically illustrated as a rectangular parallelepiped. As shown in fig. 2, when the unit cell 41 is a rectangular parallelepiped, the mounting plate 20a may be provided with four supporting pieces 24, and the four supporting pieces 24 are respectively located at four vertices of a rectangle, so that the four supporting pieces 24 are all close to four corners 41a of the unit cell 41, and the thickness of the region of the battery assembly 40 corresponding to the four corners 41a of the unit cell 41 is more uniform.

The supporting piece 24 and the pressing plate 10 cooperate to adjust the thickness of the region corresponding to the supporting piece 24 in the battery assembly 40, the supporting piece 24 is arranged close to the angle 41a of the single battery 41, and the thickness of the region where the angle 41a of the single battery 41 is located can be adjusted, so that the situation that the insulating skin of the single battery 41 is broken easily in the process of assembling the battery assembly 40 into the battery pack shell is avoided.

The region of the spacer 42 corresponding to the support member 24 is hollowed out, so that the support member 24 can pass through the spacer 42 to support the unit cell 41. The distance between the supporting member 24 and the corner 41a of the unit cell 41 can be flexibly adjusted according to practical situations, for example, according to the position of the hollowed-out area 423 of the isolation sleeve 42.

As shown in fig. 9, the fixing plate 20 is provided with a mounting hole 243 extending along the first direction Z, the supporting member 24 includes a supporting column 241 and a spring 242, the supporting column 241 is movably connected in the mounting hole 243, one end of the spring 242 is connected to the mounting hole 243, and the other end is connected to the supporting column 241, so that the supporting column 241 is elastically stretched under the action of the spring 242.

Illustratively, with continued reference to fig. 9, the end of the support post 241 facing the platen 10 is an arc surface, and the support post 241 is in point contact when in contact with the cell 41. When the surface flatness of the unit cell 41 is poor, the support posts 241 may remain in contact with the unit cell 41.

Illustratively, with continued reference to fig. 9, the support post 241 is larger in size toward one end of the platen 10 and protrudes from the mounting plate 20a to support the battery cells 41. The spring 242 is a cylindrical spring 242, the spring 242 is sleeved outside the support column 241, one end of the spring 242 facing the pressing plate 10 is propped against the end of the support column 241, and the other end of the spring 242 is fixed in the mounting hole 243.

With continued reference to fig. 3, the fixing plate 20 is provided with a first side 201 and a second side 202 which are oppositely arranged along the second direction Y, the first side 201 and the second side 202 are respectively provided with a first clamping mechanism 21 and a positioning block 23, the first clamping mechanism 21 and the positioning block 23 are convexly arranged on the surface of the fixing plate 20 facing the pressing plate 10, and the first clamping mechanism 21, the positioning block 23, the mounting plate 20a and the pressing plate 10 enclose an accommodating space for accommodating the battery assembly 40. After the battery assembly 40 is placed in the accommodating space, the first clamping mechanism 21 may move toward the positioning block 23 in the second direction Y, so that the first clamping mechanism 21 and the positioning block 23 cooperatively clamp the battery assembly 40. The first direction Z and the second direction Y intersect. Illustratively, the first direction Z and the second direction Y are perpendicular.

The positioning block 23 is provided with a single battery positioning surface 23a and a spacer positioning surface 23b, after the battery assembly 40 is mounted on the fixing plate 20, the first clamping mechanism 21 can abut against the spacer 42 and the single battery 41 along the direction facing the positioning block 23, so that the spacer 42 abuts against the spacer positioning surface 23b, and the single battery 41 abuts against the single battery positioning surface 23 a. That is, the first clamping mechanism 21 cooperates with the spacer positioning surface 23b to clamp the spacer 42, correcting the buckling deformation of the spacer 42 so that the shapes of the spacers 42 tend to be uniform in different battery packs 40. The first clamping mechanism 21 cooperates with the cell positioning surface 23a to clamp the cell 41, and adjusts the relative positions of the cell 41 and the spacer 42, so that the relative positions of the cell 41 and the spacer 42 in different cell assemblies 40 tend to be consistent along the second direction Y.

The cell positioning surface 23a is in contact with the cell 41, and the spacer positioning surface 23b is in contact with the spacer 42, so that the relative positions of the cell 41 and the spacer 42 are related to the relative positions of the cell positioning surface 23a and the spacer positioning surface 23 b. The single battery positioning surface 23a and the spacer positioning surface 23b are both positioned on the positioning block 23, so that the position error between the single battery positioning surface 23a and the spacer positioning surface 23b is smaller.

Illustratively, the spacer 42 includes a connection post 421, the cell 41 includes a post 411, the connection post 421 is in contact with the spacer locating surface 23b, and the post 411 is in contact with the cell locating surface 23 a.

Illustratively, in the second direction Y, the connection posts 421 are disposed protruding from the pole 411 such that the spacer positioning surface 23b is located on a side of the cell positioning surface 23a remote from the mounting plate 20 a.

Of course, the positioning block 23 may also include a first positioning block and a second positioning block that are disposed at intervals, the unit cell positioning surface 23a may be located on the first positioning block, and the spacer positioning surface 23b may be located on the second positioning block.

As shown in fig. 4 and 8, the first clamping mechanism 21 includes a clamping block 211 and an elastic member, the clamping block 211 is slidably connected to the fixing plate 20, the elastic member is connected to the clamping block 211, and the elastic member is used for driving the clamping block 211 to slide toward the positioning block 23 so as to abut against the spacer 42 and the unit cell 41.

The elastic piece drives the clamping block 211 to slide towards the positioning block 23, so that the operation is more convenient. For example, before the battery assembly 40 is placed in the accommodating space, the clamping block 211 is shifted away from the positioning block 23, and the elastic member generates an elastic force. After the battery assembly 40 is placed, the clamping block 211 is loosened, so that the clamping block 211 moves towards the positioning block 23 under the action of the elastic force of the elastic piece, and the clamping block 211 and the positioning block 23 are matched to clamp the isolation sleeve 42 and the single battery 41.

The elastic member may be stretched or compressed when the clamping block 211 is moved, which is not limited in the embodiment of the present utility model.

As shown in fig. 8, the clamping block 211 is provided with a sliding hole 214, the elastic member includes a limiting column 212 and a power spring 213, one end of the limiting column 212 passes through the sliding hole 214 and is fixedly connected with the fixed plate 20, the other end of the limiting column 212 is connected with a first end of the power spring 213, and a second end of the power spring 213 is connected with the sliding hole 214. When the clamping block 211 is shifted, the clamping block 211 compresses the power spring 213, so that the power spring 213 generates elastic force. When the clamping block 211 is released, the clamping block 211 rebounds under the elastic force of the power spring 213.

Illustratively, the end of the sliding hole 214 facing the positioning block 23 is provided with a first step, the end of the limiting post 212 away from the positioning block 23 is provided with a second step, the power spring 213 is sleeved outside the limiting post 212, and one end abuts against the first step, and the other end abuts against the second step.

With continued reference to fig. 3, the mounting plate 20a further includes a third side 203 and a fourth side 204 disposed opposite along the third direction X, and the battery assembly fixture further includes a second clamping mechanism 22 disposed on the third side 203, and after the battery assembly 40 is mounted on the mounting plate 20, the second clamping mechanism 22 is movable toward the battery assembly 40 along the third direction X to abut the spacer 42 and the battery cells 41. The third direction X intersects the first direction Z and the second direction Y, respectively. Illustratively, the third direction X is perpendicular to both the first direction Z and the second direction Y.

Wherein the spacer 42 is fixed relative to the mounting plate 20a along the third direction X. That is, the spacer 42 does not slide in the first direction Z as a whole by the abutting action of the second clamping mechanism 22.

Illustratively, the fourth side 204 is provided with a third locating block, and the second clamping mechanism 22 cooperates with the third locating block to clamp the spacer 42, thereby correcting buckling deformation of the spacer 42 such that the shape of the spacer 42 tends to be uniform from one cell assembly 40 to another.

Illustratively, the spacer 42 side wall is sleeved outside the mounting plate 20a side wall, and the second clamping mechanism 22 cooperates with the mounting plate 20a side wall to clamp the spacer 42 side wall, thereby modifying the shape of the spacer 42 side wall.

Illustratively, the spacer positioning surface 23b in the positioning block 23 includes a first positioning surface and a second positioning surface, the first positioning surface is abutted with the spacer 42 along the second direction Y, the second positioning surface is abutted with the spacer 42 along the third direction X, so that the first clamping mechanism 21 and the first positioning surface cooperate to clamp the spacer 42, and the second clamping mechanism 22 and the second positioning surface cooperate to clamp the spacer 42. For example, the first positioning surface and the second positioning surface are two surfaces which are perpendicular to each other and are connected, the normal direction of the first positioning surface is the second direction Y, and the normal direction of the second positioning surface is the third direction X.

The second clamping mechanism 22 may have the same structure as the first clamping mechanism 21 or may be different from the first clamping mechanism 21, which is not limited in the embodiment of the present utility model, so long as the second clamping mechanism 22 is movable in the third direction X to clamp the unit battery 41 and/or the spacer 42. When the structure of the second clamping mechanism 22 is the same as that of the first clamping mechanism 21, reference may be made to the description of the first clamping mechanism 21, and the description thereof will not be repeated.

With continued reference to fig. 2, the side of the pressing plate 10 facing the fixing plate 20 is connected with a thimble 11, the spacer 42 includes a plurality of corner areas 42a, and when the pressing plate 10 presses toward the fixing plate 20, an end of the thimble 11 is used to press the corner areas 42a of the spacer 42, so that the spacer 42 is attached to the fixing plate 20.

By pressing the corner region 42a of the spacer 42 with the ejector pin 11, the corner region 42a of the spacer 42 can be bonded to the fixing plate 20, and the warp deformation of the spacer 42 can be modified. After the corner region 42a of the spacer 42 is attached to the fixing plate 20, the thickness of the region of the battery assembly 40 corresponding to the corner region 42a of the spacer 42 is equal to the distance between the fixing plate 20 and the pressing plate 10, so that the distance between the fixing plate 20 and the pressing plate 10 can be adjusted to make the thicknesses of different battery assemblies 40 consistent.

Illustratively, at least one thimble 11 is provided corresponding to each corner region 42a of the spacer sleeve 42. For example, the platen 10 is provided with four pins 11, one pin 11 for each corner region 42a of the spacer 42.

As shown in fig. 5, a plurality of pressing blocks 12 are disposed on a side of the pressing plate 10 facing the fixing plate 20, the pressing blocks 12 are disposed corresponding to corners 41a of the unit batteries 41, and the pressing blocks 12 are used for abutting against the unit batteries 41 so as to enable the unit batteries 41 to be tightly matched with the isolation sleeve 42 along the first direction Z.

In the adjacent two battery modules 40 in the battery pack, the corner 41a of the unit cell 41 in one battery module 40 abuts against the spacer 42 in the other battery module 40. Thus, the thickness of the battery assembly 40 in the region where the corners 41a of the unit cells 41 are located directly affects the assembly of the battery assembly 40 in the battery pack. The support 24 cooperates with the press block 12 to adjust the position of the unit cells 41 relative to the spacer 42 in the first direction Z, i.e., the thickness of the battery assembly 40. The pressing block 12 is arranged close to the angle 41a of the single battery 41, and the thickness of the area where the angle 41a of the single battery 41 is positioned in the battery assembly 40 can be adjusted, so that the situation that the insulating skin of the single battery 41 is scratched in the process of assembling the battery assembly 40 to the battery pack shell is not easy to occur.

Illustratively, along a first direction Z, the projection of the compact 12 coincides with the projection of the support 24.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. A battery assembly fixing device, wherein the battery assembly (40) comprises a single battery (41), a spacer sleeve (42) for fixing the single battery (41) and a fixing adhesive for bonding the single battery (41) and the spacer sleeve (42), and the battery assembly fixing device is characterized by comprising a fixing plate (20) and a pressing plate (10) which are opposite along a first direction (Z) and are arranged at intervals, an accommodating space for accommodating the battery assembly (40) is formed between the fixing plate (20) and the pressing plate (10),

one side of fixed plate (20) orientation clamp plate (10) is equipped with mounting panel (20 a), mounting panel (20 a) are equipped with holding surface (25) and support piece (24), holding surface (25) are used for supporting spacer sleeve (42), support piece (24) are equipped with a plurality of and the interval is arranged mounting panel (20 a), support piece (24) can follow first direction (Z) elasticity flexible, just support piece (24) protrusion holding surface (25), so that support piece (24) elastic support monomer battery (41).

2. The battery assembly fixture according to claim 1, wherein the mounting plate (20 a) is provided in a rectangular shape, four of the support members (24) are provided, and four of the support members (24) are located near four corners of the rectangular shape, respectively.

3. The battery pack fixing device according to claim 1, wherein the fixing plate (20) is provided with a mounting hole (243) extending in the first direction (Z), the support member (24) includes a support column (241) and a spring (242), the support column (241) is movably connected in the mounting hole (243), one end of the spring (242) is connected to the mounting hole (243), and the other end is connected to the support column (241), so that the support column (241) is elastically expanded and contracted under the action of the spring (242).

4. A battery pack fixing device according to any one of claims 1-3, wherein the fixing plate (20) is provided with a first side (201) and a second side (202) which are oppositely arranged along a second direction (Y), a first clamping mechanism (21) and a positioning block (23) are respectively arranged on the first side (201) and the second side (202), the first clamping mechanism (21) and the positioning block (23) are convexly arranged on the surface of the fixing plate (20) facing the pressing plate (10), and the first clamping mechanism (21), the positioning block (23), the mounting plate (20 a) and the pressing plate (10) form a containing space for containing the battery pack;

the positioning block (23) is provided with a single battery positioning surface (23 a) and a spacer positioning surface (23 b), the battery assembly (40) is mounted on the fixing plate (20), the first clamping mechanism (21) can abut against the spacer (42) and the single battery (41) along the direction facing the positioning block (23), so that the spacer (42) abuts against the spacer positioning surface (23 b), the single battery (41) abuts against the single battery positioning surface (23 a), and the first direction (Z) and the second direction (Y) are intersected.

5. The battery assembly fixture according to claim 4, wherein the first clamping mechanism (21) includes a clamping block (211) and an elastic member, the clamping block (211) being slidably connected to the fixing plate (20), the elastic member being connected to the clamping block (211), the elastic member being configured to drive the clamping block (211) to slide toward the positioning block (23) so as to abut against the spacer bush (42) and the unit battery (41).

6. The battery assembly fixing device according to claim 5, wherein the clamping block (211) is provided with a sliding hole (214), the elastic member comprises a limiting column (212) and a power spring (213), one end of the limiting column (212) passes through the sliding hole (214) to be connected with the fixing plate (20), the other end of the limiting column (212) is connected with a first end of the power spring (213), and a second end of the power spring (213) is connected with the sliding hole (214).

7. The battery assembly fixture according to claim 4, wherein the mounting plate (20 a) further comprises a third side (203) and a fourth side (204) disposed opposite along a third direction (X), the battery assembly fixture further comprising a second clamping mechanism (22) disposed at the third side (203), the battery assembly (40) being mounted on the mounting plate (20), the second clamping mechanism (22) being movable along the third direction (X) towards the battery assembly (40) to bear against the spacer sleeve (42) and the battery cell (41), the third direction (X) intersecting the first direction (Z) and the second direction (Y), respectively.

8. A battery pack fixing device according to any one of claims 1-3, wherein a thimble (11) is connected to a side of the pressing plate (10) facing the fixing plate (20), the spacer bush (42) includes a plurality of corner regions (42 a), and when the pressing plate (10) presses toward the fixing plate (20), an end portion of the thimble (11) is used for pressing the corner regions (42 a) of the spacer bush (42) to make the spacer bush (42) fit with the fixing plate (20).

9. A battery assembly fixing device according to any one of claims 1-3, wherein the single battery (41) is integrally in a cuboid structure, a plurality of pressing blocks (12) are arranged on one side of the pressing plate (10) facing the fixing plate (20), the pressing blocks (12) are arranged corresponding to corners (41 a) of the single battery (41), and the pressing blocks (12) are used for propping against the single battery (41) so that the single battery (41) and the isolation sleeve (42) are tightly matched along the first direction (Z).

10. The battery assembly fixing device according to claim 1, wherein a self-locking clip (30) is further arranged on the fixing plate (20), and the self-locking clip (30) abuts against one side of the pressing plate (10) away from the fixing plate (20) so as to press the battery assembly (40) between the fixing plate (20) and the pressing plate (10).