CN218039706U - Battery device - Google Patents

Abstract

The utility model relates to the technical field of batteries, in particular to a battery device, which comprises a busbar and a plurality of batteries, wherein the batteries at least comprise a first battery and a second battery which are arranged along a first direction, the batteries are provided with a first side surface which is vertical to the first direction, the first side surface of the first battery which is back to the second battery and the first side surface of the second battery which faces the first battery are respectively provided with a pole component, the busbar is arranged at the end part of the first battery along a second direction in a spanning way, the second direction is vertical to the first direction, and the two ends of the busbar are respectively adjacent to two pole components; the end part of the battery along the second direction is provided with an insulating support, the outer side surface of the insulating support perpendicular to the second direction is provided with a fixing structure, and the bus bar is fixed on the outer side surface of the insulating support through the fixing structure. The utility model discloses can directly utilize the fixed busbar of insulating support, effectively reduce spare part quantity, be favorable to realizing reduce cost and the effect of weight reduction.

Description

Battery device

Technical Field

The utility model relates to a battery technology field especially relates to a battery device.

Background

In the existing battery device, an end of the battery is provided with an insulating bracket for performing an insulating function of the end of the battery and a bus bar bracket for fixing the bus bar at the end of the battery. However, since the insulating bracket and the bus bar bracket are provided at the same time, the number of components of the battery device is large and the weight is large, and it is difficult to satisfy the present demands for weight reduction and design and cost control in the industry.

SUMMERY OF THE UTILITY MODEL

It is a primary object of the present invention to overcome at least one of the above-mentioned drawbacks of the prior art and to provide a battery device having a small weight and a low cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

according to an aspect of the present invention, there is provided a battery device, comprising a busbar and a plurality of batteries, wherein the plurality of batteries at least include a first battery and a second battery arranged along a first direction, wherein the batteries have a first side surface perpendicular to the first direction, a first side surface of the first battery facing away from the second battery and a first side surface of the second battery facing toward the first battery are respectively provided with a pole assembly, the busbar is disposed across an end portion of the first battery along a second direction, the second direction is perpendicular to the first direction, and two ends of the busbar are respectively adjacent to two of the pole assemblies; the end part of the battery along the second direction is provided with an insulating support, the insulating support is perpendicular to the outer side surface of the second direction and is provided with a fixing structure, and the bus bar is fixed on the outer side surface of the insulating support through the fixing structure.

According to the above technical scheme, the utility model provides a battery device's advantage lies in with positive effect:

the utility model provides a battery device is including setting up the insulating support of battery tip, and insulating support's lateral surface is provided with fixed knot and constructs, and the busbar is fixed in insulating support's lateral surface via fixed knot constructs. Through the structure design, the utility model discloses when can utilize insulating support to realize the insulating function of battery tip, directly utilize the fixed busbar of insulating support, effectively reduce spare part quantity, be favorable to realizing the effect of reduce cost and weight reduction.

Drawings

The various objects, features and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments of the invention, when considered in conjunction with the accompanying drawings. The drawings are merely exemplary of the invention and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:

fig. 1 is a schematic perspective view showing a partial structure of a battery device according to an exemplary embodiment;

fig. 2 is an enlarged schematic view of a portion a in fig. 1;

FIG. 3 is an exploded perspective view of FIG. 2;

FIG. 4 is a schematic perspective view of the insulating holder shown in FIG. 2;

FIG. 5 is a side view of FIG. 2;

FIG. 6 is a partial cross-sectional view taken along FIG. 5;

fig. 7 is a partially enlarged schematic view showing a partial structure of a battery device according to another exemplary embodiment;

fig. 8 is a partially enlarged schematic view showing a partial structure of a battery device according to another exemplary embodiment;

fig. 9 is a partially enlarged schematic view showing a partial structure of a battery device according to another exemplary embodiment.

The reference numerals are explained below:

100. a battery;

103. a first side surface;

120.R corner;

130. a recessed region;

140. a pole assembly;

141. a third part;

142. a fourth section;

150. a flange structure;

200. an insulating support;

211. buckling;

221. transverse support ribs;

222. longitudinal support ribs;

230. a through groove;

240. a step structure;

251. a limiting bulge;

260. a pole clamping part;

270. an avoidance part;

300. a bus bar;

301. a card slot;

310. a bending section;

x. a first direction;

y. second direction.

Detailed Description

Exemplary embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.

In the following description of various exemplary embodiments of the invention, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary structures, systems, and steps in which aspects of the invention may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized and structural and functional modifications may be made without departing from the scope of the present invention. Moreover, although the terms "over," "between," "within," and the like may be used in this specification to describe various example features and elements of the invention, these terms are used herein for convenience only, e.g., in accordance with the orientation of the examples described in the figures. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures to fall within the scope of the invention.

Referring to fig. 1, a schematic perspective view of a partial structure of a battery device according to the present invention is representatively illustrated, and specifically illustrates a battery pack of the battery device and a three-dimensional structure of an insulating support 200, a bus bar 300, and a side insulating plate 400 provided on the battery pack. In this exemplary embodiment, the battery device proposed by the present invention is explained by taking an example of application to the vehicle-mounted battery 100. It will be readily appreciated by those skilled in the art that various modifications, additions, substitutions, deletions, or other changes may be made to the embodiments described below in order to adapt the inventive arrangements to other types of battery devices, and still fall within the scope of the principles of the inventive arrangements.

As shown in fig. 1, in an embodiment of the present invention, the battery device includes a battery pack and a box (not shown), the battery pack is accommodated in the box, and the battery pack includes a bus bar 300 and a plurality of batteries 100 arranged in sequence, and the following embodiment is described by taking as an example that the plurality of batteries 100 includes at least a first battery 100 and a second battery 100. In the following description of the present specification, it is defined that an arrangement direction of a plurality of batteries 100 belonging to one battery pack is a first direction X, and another direction perpendicular to the first direction X is a second direction Y. Referring to fig. 2 to 6 in combination, fig. 2 representatively illustrates an enlarged schematic view of portion a of fig. 1; representatively illustrated in fig. 3 is a perspective exploded view of fig. 2; a perspective view of the insulating support 200 is representatively illustrated in fig. 4; representatively illustrated in fig. 5 is a side view of fig. 2; a partial cross-sectional view along the drawing is representatively illustrated in fig. 6. The structure, connection mode and functional relationship of the main components of the battery device provided by the present invention will be described in detail below with reference to the above drawings.

As shown in fig. 1 to 6, in an embodiment of the present invention, a surface of the battery 100 (i.e., a casing surface of the battery 100) has a top surface, a bottom surface, two first side surfaces 103, and two second side surfaces. The two first side surfaces 103 are perpendicular to and spaced apart from each other along the first direction X, and the two second side surfaces are parallel to and spaced apart from each other along the first direction X and along the second direction Y. Taking the first battery 100 and the second battery 100 adjacent to each other as an example, the first side surface 103 of the first battery 100 facing away from the second battery 100 and the first side surface 103 of the second battery 100 facing toward the first battery 100 are respectively provided with the pole assemblies 140, the bus bar 300 is disposed across the end portion of the first battery 100 along the second direction Y, and two ends of the bus bar 300 are respectively adjacent to the two pole assemblies 140. On this basis, the utility model provides a battery device still includes insulating support 200, and this insulating support 200 sets up in the tip of battery 100 along second direction Y. Wherein, the outer side surface of the insulating bracket 200 perpendicular to the second direction Y is provided with a fixing structure, and the bus bar 300 is fixed on the outer side surface of the insulating bracket 200 via the fixing structure. Through the structure design, the utility model discloses when can utilize insulating support 200 to realize the insulating function of battery 100 tip, directly utilize the fixed busbar 300 of insulating support 200, effectively reduce spare part quantity, be favorable to realizing the effect of reduce cost and weight reduction.

As shown in fig. 2 to 5, in an embodiment of the present invention, the fixing structure of the insulating bracket 200 may be a buckle 211, and the buckle 211 may be used to clamp the bus bar 300. Through the structure design, the utility model discloses utilize buckle 211 as the fixed knot structure of fixed busbar 300, simple structure, the operation of being convenient for, the cost is lower, and assembly efficiency is higher.

As shown in fig. 2 to 5, based on the structural design that the fixing structure is the buckle 211, in an embodiment of the present invention, the fixing structure may include two buckles 211 arranged at an upper and a lower interval. Correspondingly, the edges of the upper end and the lower end of the bus bar 300 may be respectively provided with two clamping grooves 301, and the two clamping grooves 301 are respectively in clamping fit with the two buckles 211. Through the structure design, the utility model discloses fixed knot constructs the fixed effect to busbar 300 can be optimized to be convenient for busbar 300's assembly.

In some embodiments, the fixing structure may also be a step structure, and includes two step structures spaced up and down. Through the structure design, the utility model discloses can utilize two fixed busbar 300 of stair structure.

Based on fixed knot constructs for the structural design of stair structure the utility model discloses an in an embodiment, stair structure can be provided with towards the protruding buckle that stretches of busbar 300, and stair structure can roughly be the structure of buckle of buckling promptly, can further strengthen the fixed effect to busbar 300 in view of the above.

As shown in fig. 4 and 5, in an embodiment of the present invention, the outer side surface of the insulating support 200 may be provided with a support rib abutting against the inner side surface of the bus bar 300 facing the battery 100 for supporting the bus bar 300 along the second direction Y. Through the structure design, the utility model discloses can utilize the brace rod to realize the support of following second direction Y to busbar 300, can utilize the brace rod to realize spacing busbar 300 on second direction Y simultaneously.

As shown in fig. 4 and 5, based on the structural design that the outer side surface of the insulating bracket 200 is provided with the supporting ribs, in an embodiment of the present invention, the supporting ribs may include a transverse supporting rib 221 and a longitudinal supporting rib 222, the transverse supporting rib 221 extends along the first direction X, and the longitudinal supporting rib 222 extends along the vertical direction. On this basis, the longitudinal support rib 222 may be located at one end of the outer side surface of the insulating support 200 along the first direction X, and the transverse support rib 221 may extend from the longitudinal support rib 222 to the other end of the outer side surface of the insulating support 200 along the first direction X. Through the structure design, the utility model discloses can further promote the structural strength of brace rod for the structural stability that utilizes the support to support busbar 300 is higher.

As shown in fig. 4 and 5, based on the structural design that the support rib includes the transverse support rib 221, in an embodiment of the present invention, the support rib may include a plurality of transverse support ribs 221, and the transverse support ribs 221 are arranged at intervals along the first direction X. Through the structure design, the utility model discloses can further promote the support effect of support, and more even to the support of busbar 300 a plurality of positions. And simultaneously, the utility model discloses a plurality of interval arrangements's horizontal brace rod 211 can form between two adjacent horizontal brace rod 211 sunken, because the heat of busbar is higher, and above-mentioned sunken can prevent that the inboard whole face of busbar 300 (for example this body part 320) from attaching on insulating support 200 to further promote insulating support 200's durability, still can play the effect of subtracting weight in addition.

As shown in fig. 4 and 5, based on the structural design that the support rib includes the transverse support rib 221, in an embodiment of the present invention, the outer side surface of the insulating support 200 is provided with a through groove 230, and the through groove 230 is through along the first direction X. On this basis, the lateral support rib 221 may be disposed at the bottom of the through groove 230 with the bus bar 300 partially received in the through groove 230, the lateral support rib 221 abutting against the inside of the portion of the bus bar 300 received in the through groove 230. Through the above structure design, the utility model discloses can utilize horizontal brace rod 221 to hold the part that leads to groove 230 to busbar 300 spacing.

As shown in fig. 4 and 5, based on the structural design that the transverse support rib 221 is disposed at the bottom of the lifting groove 230, in an embodiment of the present invention, the bus bar 300 has a main body portion 320 and two bent portions 310, the main body portion 320 extends along the first direction X and is accommodated in the lifting groove 230, the two bent portions 310 are respectively connected to two ends of the main body portion 320 along the first direction X, and the two bent portions 310 extend along the second direction Y respectively for being respectively connected to the pole assemblies 140 of two adjacent batteries 100. In addition, both ends of the lateral support rib 221 along the first direction X may respectively abut against opposite inner sides of the two bent portions 310, that is, the length of the lateral support rib 221 in the first direction X may be substantially equal to the length of the through groove 230 and the body portion 320 in the first direction X. Through the above structure design, the utility model discloses can utilize horizontal brace rod 221 to provide spacing and support function for two kinks 310 of busbar 300.

As shown in fig. 3 to 5, in an embodiment of the present invention, the outer side surface of the insulating support 200 may be provided with a through groove 230, and the through groove 230 is penetrated along the first direction X. On this basis, the fixing structure may be disposed in the through groove 230, in other words, when the bus bar 300 is fixed to the insulating bracket 200 via the fixing structure, the bus bar 300 is partially received in the through groove 230. Through the structure design, the utility model discloses can utilize to lead to groove 230 and provide accommodation space for busbar 300.

As shown in fig. 3 to 5, based on the structural design that the outer side of the insulating bracket 200 is provided with the through groove 230, in an embodiment of the present invention, the through groove 230 has two opposite groove walls in the upper and lower directions, and the groove walls are parallel to the first direction X. On this basis, the distance between the two side walls of the through groove 230, i.e. the width of the through groove 230, may be greater than the height of the bus bar 300, and the upper and lower ends of the bus bar 300 are spaced from the two side walls respectively. Through the structure design, the utility model discloses can utilize the operation space when the cell wall that leads to groove 230 and busbar 300 edge between as the assembly busbar 300, the assembly of being convenient for, efficiency is higher.

As shown in fig. 2 and 3, based on the structural design that the upper and lower ends of the bus bar 300 are spaced apart from the two side walls of the through groove 230, in an embodiment of the present invention, the battery device further includes a side insulating plate 400, the side insulating plate 400 may be disposed on the outer side surface of the insulating support 200, and the side insulating plate 400 is partially accommodated in the through groove 230. In other words, the groove depth of the through groove 230 is greater than the thickness of the portion of the bus bar 300 disposed in the through groove 230, so that the through groove 230 has an additional space for accommodating the side insulation plate 400 in the second direction Y in addition to accommodating the bus bar 300. Through the structure design, the utility model discloses can utilize to lead to groove 230 to realize holding of busbar 300 simultaneously and holding and fixing of side insulation board 400, be favorable to reducing spare part quantity, reduce cost and improve effect, and be favorable to the location of side insulation board 400, assembly efficiency is higher.

As shown in fig. 2, in an embodiment of the present invention, the battery 100 includes a first portion and a second portion, the second portion is located at an end of the first portion along the second direction Y, a concave region 130 is formed between the second portions of two adjacent batteries 100, and the concave region 130 may be formed, for example, because the thickness of the second portion in the first direction X is smaller than the thickness of the first portion in the first direction X. In other words, the battery 100 has an irregular structural configuration at the second portion thereof, compared to the structural configuration in which the first portion of the battery 100 has a substantially rectangular parallelepiped structural configuration. On this basis, the insulating support 200 may be disposed on the top surface, the bottom surface, and the second side surfaces of the two sides of the second portion. Through the above structure design, the utility model discloses can make side insulation board 400 set up in each surface of the irregular part of structure type of battery 100, further optimize the insulating protective effect of side insulation board 400 to battery 100 tip (be the second portion).

As shown in fig. 2, in one embodiment of the present invention, the battery 100 has a flange structure 150 disposed along the top surface, the bottom surface, and the two second side surfaces. On this basis, the edge of the insulating support 200 corresponding to the flange structure 150 may be provided with a step structure 240, and the step structure 240 forms a space for accommodating the flange structure 150. Through the structure design, the utility model discloses can utilize stair structure 240 to hold flange structure 150 to the realization is to flange structure 150's insulation protection, and can place flange structure 150 and collide with the damage. In addition, since the step structure 240 is provided at the edge of the insulating support 200, the process is easier and the installation is facilitated. In some embodiments, the insulating support 200 may also be provided with a receiving groove corresponding to the edge of the flange structure 150 to form a space for receiving the flange structure 150, which is not limited in this embodiment.

In an embodiment of the present invention, the insulating support 200 extends to the pole assembly 140 and contacts the pole assembly 140, so that the insulating support 200 exists in all regions between the busbar 300 and the battery 100 except the pole assembly 140. Through the structure design, the utility model discloses can expose and connect in the basis of busbar 300 at assurance post subassembly 140 for insulating support 200 is to the insulating protection effect maximize of the tip of battery 100 irregular structure pattern.

Based on the structural design that insulating support 200 extends to pole subassembly 140 and contacts with pole subassembly 140, in an embodiment of the present invention, pole subassembly 140 includes an insulator, and the orthographic projection of this insulator on first side 103 is located at least partially within the range of the orthographic projection of insulating support 200 on first side 103. In other words, in an orthogonal projection on the first side surface 103, the insulating member of the pole assembly 140 and a portion of the insulating support 200 contacting the pole assembly 140 have an overlapping region. Through the structure design, the utility model discloses can promote insulating support 200 to the electrified component's of battery 100 insulating protection effect.

Based on the structural design that there is partial overlapping between the insulating member of the post assembly 140 and the insulating support 200, in an embodiment of the present invention, the insulating member may be provided with a recess, and the insulating support 200 may be provided with a protrusion, which extends and is accommodated in the recess. Through the structure design, the utility model discloses can further promote insulating support 200 to the electrified component's of battery 100 insulating protection effect.

Referring to fig. 7, an enlarged partial schematic view of a portion of another exemplary embodiment of a battery device that embodies principles of the present invention is representatively illustrated in fig. 7.

As shown in fig. 7, in an embodiment of the present invention, the bus bar 300 has a bent portion 310 for connecting the pole assembly 140, the bent portion 310 extends along the second direction Y and is located on the first side 103 of the battery 100, and the bus bar 300 is connected to the pole assembly 140 by the bent portion 310. On this basis, the insulating support 200 may be provided with a limiting structure, the limiting structure is located on the first side 103 of the battery 100, and the limiting structure can limit the bending portion 310 in the height direction, so as to prevent the bus bar 300 from moving in the vertical direction. Through the structure design, the utility model discloses can utilize insulating support 200's limit structure to provide vertical ascending limit function of side for busbar 300.

As shown in fig. 7, the structural design based on the insulation support 200 is provided with the limiting structure, in an embodiment of the present invention, the limiting structure may include two limiting protrusions 251, the two limiting protrusions 251 are arranged along the height direction at intervals, and the two limiting protrusions 251 are respectively limited on the upper and lower two sides of the bending portion 310. In some embodiments, a fixing structure, such as a snap, may be further disposed on the limiting protrusion 251, so as to fix the bending portion 310.

In an embodiment of the present invention, the insulating support 200 may be an integrally formed structure. Through the structure design, the utility model discloses can further reduce spare part quantity, be favorable to improving piling up of battery 100 and efficiency in groups.

In an embodiment of the present invention, the insulating support 200 may have a variable wall thickness structure, that is, the wall thickness of the insulating support 200 at a local position varies to form a structure similar to a step, and accordingly, the wall thickness variation of the insulating support 200 may form a fixing structure for fixing the busbar 300. Through the structure design, the utility model discloses insulating support 200's manufacturability and structural strength can further be optimized.

Based on the structural design that insulating support 200 adopted the variable wall thickness structure and became wall thickness department and form fixed knot to construct the utility model discloses an embodiment, battery 100 has flange structure 150, and this flange structure 150 is located battery 100 along the one end of first direction X. On this basis, the fixing structure formed by the varied wall thickness may be located at an outer side of the flange structure 150 away from the battery 100 in the first direction X.

Based on insulating support 200 adopts the structural design who becomes the wall thickness structure and become wall thickness department and form fixed knot structure the utility model discloses an in the embodiment, become wall thickness department and can also be provided with turn-ups buckle structure for it is fixed with busbar 300 joint.

Referring to fig. 8, an enlarged partial schematic view of a portion of another exemplary embodiment of a battery device that embodies principles of the present invention is representatively illustrated in fig. 8.

As shown in fig. 8, in one embodiment of the present invention, the pole assembly 140 includes a third portion 141 and a fourth portion 142, the third portion 141 is disposed on the first side 103 of the battery 100, and the fourth portion 142 is connected to the third portion 141 and extends back to the battery 100 along the first direction X. In other words, the orthographic projection of the pole assembly 140 on the battery device floor may be substantially "L" shaped. On this basis, the insulating bracket 200 may be provided with a post clamping portion 260, the post clamping portion 260 being located on the first side surface 103 of the battery 100, the post clamping portion 260 being used for being clamped in the fourth portion 142 of the post assembly 140. The pole engaging portion 260 may be, for example, but not limited to, a hook. Through the structure design, the utility model discloses can further utilize insulating support 200 to fix utmost point post subassembly 140.

In an embodiment of the present invention, a portion of the insulating bracket 200 adjacent to the bus bar 300 may be white or transparent.

In an embodiment of the present invention, the insulating support may be made of a high temperature resistant material.

Referring to fig. 9, an enlarged partial schematic view of a portion of a battery device in another exemplary embodiment that embodies principles of the present invention is representatively illustrated in fig. 9.

As shown in fig. 9, in an embodiment of the present invention, the battery 100 may have an R corner 120 formed substantially between one first side 103 and a second side where the pole assembly 140 is not provided, and the R corner is provided with an explosion-proof valve. On this basis, the insulating support 200 may be provided with an avoiding portion 270 at a position corresponding to the R corner portion, and the avoiding portion 270 is used to avoid the explosion-proof valve. The avoiding portion 270 may be, but is not limited to, a through hole or a through groove. Through the structure design, the utility model discloses can utilize the portion 270 of dodging to dodge the explosion-proof valve when battery 100's explosion-proof valve setting is in R bight, avoid the structure to interfere.

As shown in fig. 1 to 3, in an embodiment of the present invention, the area of the first side 103 of the battery 100 may be larger than the area of the second side thereof, in other words, the first side 103 of the battery 100 may be the "large side" thereof.

It should be noted herein that the battery devices illustrated in the drawings and described in the present specification are only a few examples of the many types of battery devices that can employ the principles of the present invention. It should be clearly understood that the principles of the present invention are by no means limited to any of the details or any of the components of the battery device shown in the drawings or described in the specification.

To sum up, the utility model provides a battery device is including the insulating support 200 who sets up the battery 100 tip, and the lateral surface of insulating support 200 is provided with fixed knot and constructs, and busbar 300 is fixed in the lateral surface of insulating support 200 via fixed knot constructs. Through the structure design, the utility model discloses when can utilize insulating support 200 to realize the insulating function of battery 100 tip, directly utilize insulating support 200 to fix busbar 300, effectively reduce spare part quantity, be favorable to realizing the effect of reduce cost and weight reduction.

Exemplary embodiments of the battery device proposed by the present invention are described and/or illustrated in detail above. Embodiments of the invention are not limited to the specific embodiments described herein, but rather, components and/or steps of each embodiment may be utilized independently and separately from other components and/or steps described herein. Each component and/or step of one embodiment can also be used in combination with other components and/or steps of other embodiments. When introducing elements/components/etc. described and/or illustrated herein, the articles "a," "an," and "the" are intended to mean that there are one or more of the elements/components/etc. The terms "comprising," "including," and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc. Furthermore, the terms "first" and "second" and the like in the claims and the description are used merely as labels, and are not numerical limitations of their objects.

While the proposed battery device has been described in terms of various specific embodiments, those skilled in the art will recognize that the invention can be practiced with modification within the spirit and scope of the claims.

Claims (24)

1. A battery device comprises a busbar and a plurality of batteries, wherein the plurality of batteries at least comprise a first battery and a second battery which are arranged along a first direction, the battery is characterized in that the battery is provided with a first side surface which is perpendicular to the first direction, the first side surface of the first battery, which is back to the second battery, and the first side surface of the second battery, which faces the first battery, are respectively provided with a pole component, the busbar is arranged at the end part of the first battery along a second direction in a spanning manner, the second direction is perpendicular to the first direction, and the two ends of the busbar are respectively adjacent to the two pole components; the end part of the battery along the second direction is provided with an insulating support, the insulating support is perpendicular to the outer side surface of the second direction and is provided with a fixing structure, and the bus bar is fixed on the outer side surface of the insulating support through the fixing structure.

2. The battery device of claim 1, wherein the securing structure is a snap fit for snapping the busbar.

3. The battery device according to claim 2, wherein the fixing structure comprises two clips spaced from each other, and the bus bars are provided with two slots at the upper and lower edges thereof, and the two slots are engaged with the two clips.

4. The battery device according to claim 1, wherein an outer side surface of the insulating holder is provided with a support rib abutting against an inner side surface of the bus bar facing the battery for supporting the bus bar in the second direction.

5. The battery device according to claim 4, wherein the support rib includes a lateral support rib extending in the first direction and a longitudinal support rib extending in a vertical direction; the longitudinal support rib is located at one end, along the first direction, of the outer side surface of the insulating support, and the transverse support rib extends to the other end, along the first direction, of the outer side surface of the insulating support from the longitudinal support rib.

6. The battery device according to claim 5, wherein the support rib includes a plurality of the lateral support ribs arranged at intervals in the first direction.

7. The battery device according to claim 5, wherein a through groove is provided on an outer side surface of the insulating support, the through groove penetrating in the first direction; the transverse support rib is arranged at the bottom of the through groove, the bus bar is partially accommodated in the through groove, and the transverse support rib abuts against the inner side of the part, accommodated in the through groove, of the bus bar.

8. The battery device according to claim 7, wherein the bus bar has a body portion extending in the first direction and received in the through groove, and two bent portions respectively connected to both ends of the body portion in the first direction and respectively extending in the second direction for respectively connecting to the pole assemblies of two adjacent batteries; and two ends of the transverse support rib along the first direction are respectively abutted against the opposite inner sides of the two bending parts.

9. The battery device according to claim 1, wherein a through groove is provided on an outer side surface of the insulating support, the through groove penetrating in the first direction; wherein the fixing structure is provided in the through groove, and the bus bar portion is accommodated in the through groove.

10. The battery device according to claim 9, wherein the through groove has two opposite groove walls, and the groove walls are parallel to the first direction; the distance between the two side groove walls is larger than the height of the bus bar, and the upper end and the lower end of the bus bar are respectively spaced from the two side groove walls.

11. The battery device according to claim 10, further comprising side insulating plates provided on outer side surfaces of the insulating supports, the side insulating plates being partially received in the through-grooves.

12. The battery device according to any one of claims 1 to 11, wherein the battery comprises a first portion and a second portion, the second portion is located at an end of the first portion along a second direction, a recessed region is formed between the second portions of two adjacent batteries, the battery has a first side surface perpendicular to the first direction and a second side surface parallel to the first direction, and the pole assembly is disposed on one of the first side surfaces of the second portion; the insulating support is arranged on the top surface, the bottom surface and the second side surfaces at two sides of the second part.

13. The battery device of claim 12, wherein the battery has a flange structure disposed along a top surface, a bottom surface, and two second side surfaces; wherein the insulating bracket is provided with a step structure or a receiving groove corresponding to the edge of the flange structure to form a space for receiving the flange structure.

14. The battery device of claim 12, wherein the insulating support extends to and contacts the pole assembly such that the insulating support is present between the busbar and the battery in all areas except the pole assembly.

15. The battery device of claim 14, wherein the pole assembly comprises an insulator, an orthographic projection of the insulator on the first side at least partially within an orthographic projection of the insulator bracket on the first side.

16. The battery device according to claim 15, wherein the insulating member is provided with a recess, and the insulating holder is provided with a projection that extends and is received in the recess.

17. The battery device according to any one of claims 1 to 11, wherein the busbar has a bent portion for connecting a pole assembly, the bent portion extending in the second direction and being located on the first side of the battery; the insulation support is provided with a limiting structure, the limiting structure is located on the first side face of the battery, and the limiting structure is used for limiting the bending portion in the height direction.

18. The battery device according to claim 17, wherein the limiting structure comprises two limiting protrusions, the two limiting protrusions are spaced apart from each other in the height direction, and the two limiting protrusions are respectively limited on the upper and lower sides of the bending portion.

19. The battery device according to any one of claims 1 to 11, wherein the insulating support is of an integrally molded structure.

20. The battery device of claim 19, wherein the insulating support is a variable wall thickness structure, and the fixed structure is formed at the position of the variable wall thickness of the insulating support.

21. The battery device of claim 20, wherein the battery has a flange structure at one end of the battery in the first direction; wherein the securing structure is located on an outer side of the flange structure away from the battery.

22. The battery device of any one of claims 1-11, wherein the pole assembly has a third portion disposed on a first side of the battery and a fourth portion connected to the third portion and extending away from the battery in the first direction; the insulating support is provided with a pole clamping portion, the pole clamping portion is located on the first side face of the battery and clamped in the fourth portion.

23. The battery device according to any one of claims 1 to 11, wherein:

the part of the insulating bracket, which is adjacent to the bus bar, is made of white or transparent material; and/or

The insulating support is made of high-temperature-resistant materials.

24. The battery device according to any one of claims 1 to 11, wherein the battery has an R corner portion, the R corner portion is provided with an explosion-proof valve, the insulating support is provided with an avoiding portion corresponding to the R corner portion for avoiding the explosion-proof valve, and the avoiding portion is a through hole or a through groove.

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