CN219371256U

CN219371256U - Battery device

Info

Publication number: CN219371256U
Application number: CN202320433704.2U
Authority: CN
Inventors: 谷亮杰; 关俊山
Original assignee: China Innovation Aviation Technology Group Co ltd
Current assignee: China Innovation Aviation Technology Group Co ltd
Priority date: 2023-03-09
Filing date: 2023-03-09
Publication date: 2023-07-18
Anticipated expiration: 2033-03-09

Abstract

The present disclosure relates to the field of battery technology, and in particular, to a battery device, including: a battery pack and a wire harness assembly including a plurality of sequentially arranged batteries; the wire harness assembly comprises a wire harness and a plug connector, the wire harness is arranged on the side portion of the battery pack along the arrangement direction of the batteries, the plug connector is connected to the end portion of the wire harness, the end portion, close to the plug connector, of the wire harness is provided with a bending portion, and the bending portion bends towards one side, far away from the battery pack. Through setting up the kink in the one end that the wire harness is close to the bayonet joint, the kink is to the one side of keeping away from the group battery of buckling, also is so that the group battery is kept away from to the bayonet joint, has avoided producing the interference to the plug at the plug in-process group battery, promotes the connection efficiency of plug joint, and then promotes battery device's production efficiency.

Description

Battery device

Technical Field

The disclosure relates to the technical field of batteries, and in particular relates to a battery device.

Background

Battery devices are often provided in electric vehicles for powering the electric vehicles. In order to realize input and output of an electric signal in a battery device, a plug port for making an electrical connection needs to be provided in the battery device. At present, due to interference of devices such as a battery pack and the like in the battery device, the wire harness and the like in the battery device are inconvenient to plug, and the production efficiency of the battery device is reduced.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

An object of the present disclosure is to provide a battery device, and further to at least improve the production efficiency of the battery device to some extent.

The present disclosure provides a battery device including:

a battery pack including a plurality of sequentially arranged batteries;

the wire harness assembly comprises a wire harness and a plug connector, the wire harness is arranged on the side portion of the battery pack along the arrangement direction of the batteries, the plug connector is connected to the end portion of the wire harness, the end portion, close to the plug connector, of the wire harness is provided with a bending portion, and the bending portion bends towards one side, far away from the battery pack.

The battery device provided by the embodiment of the disclosure comprises a battery pack and a wire harness assembly, wherein the wire harness is arranged on the side part of the battery pack along the battery arrangement direction in the wire harness assembly, the plug connector is arranged on the end part of the wire harness, the bending part is arranged at one end of the wire harness, which is close to the plug connector, and is bent towards one side, which is far away from the battery pack, of the bending part, namely, the plug connector is far away from the battery pack, so that interference of the battery pack to plug in the plug connector plug process is avoided, the connection efficiency of the plug connector is improved, and the production efficiency of the battery device is further improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 is a schematic structural view of a battery device according to an exemplary embodiment of the present disclosure;

fig. 2 is a partial enlarged view of a battery device provided in an exemplary embodiment of the present disclosure;

fig. 3 is a schematic structural view of a battery according to an exemplary embodiment of the present disclosure;

fig. 4 is a schematic structural view of a battery pack according to an exemplary embodiment of the present disclosure;

FIG. 5 is a schematic view of an electrical support provided in an exemplary embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a connection card socket according to an exemplary embodiment of the present disclosure.

Detailed Description

The technical solutions in the exemplary embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the exemplary embodiments of the present disclosure. The example embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure, and it is therefore to be understood that various modifications and changes may be made to the example embodiments without departing from the scope of the present disclosure.

In the description of the present disclosure, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance unless explicitly specified or limited otherwise; the term "plurality" refers to two or more than two; the term "and/or" includes any and all combinations of one or more of the associated listed items. In particular, references to "the/the" object or "an" object are likewise intended to mean one of a possible plurality of such objects.

Unless specified or indicated otherwise, the terms "connected," "fixed," and the like are to be construed broadly and are, for example, capable of being fixedly connected, detachably connected, or integrally connected, electrically connected, or signally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the terms in the present disclosure may be understood by those skilled in the art according to the specific circumstances.

Further, in the description of the present disclosure, it should be understood that the terms "upper", "lower", "inner", "outer", and the like, as described in the example embodiments of the present disclosure, are described with the angles shown in the drawings, and should not be construed as limiting the example embodiments of the present disclosure. It will also be understood that in the context of an element or feature being connected to another element(s) "upper," "lower," or "inner," "outer," it can be directly connected to the other element(s) "upper," "lower," or "inner," "outer," or indirectly connected to the other element(s) "upper," "lower," or "inner," "outer" via intervening elements.

Exemplary embodiments of the present disclosure provide a battery device, as shown in fig. 1 and 2, including: a battery pack 10 and a harness assembly 20, the battery pack 10 including a plurality of sequentially arranged batteries 11; the wire harness assembly 20 includes a wire harness 21 and a plug 22, the wire harness 21 is provided at a side portion of the battery pack 10 in the battery arrangement direction, the plug 22 is connected to an end portion of the wire harness 21, and an end portion of the wire harness 21 close to the plug 22 has a bending portion 211, and the bending portion 211 is bent to a side away from the battery pack 10.

The battery device provided by the embodiment of the disclosure comprises a battery pack 10 and a wire harness assembly 20, wherein the wire harness 21 is arranged on the side part of the battery pack 10 along the battery arrangement direction in the wire harness assembly 20, the plug connector 22 is arranged on the end part of the wire harness 21, the bending part 211 is arranged at one end of the wire harness 21, which is close to the plug connector 22, and the bending part 211 is bent towards one side, which is far away from the battery pack 10, namely, the plug connector 22 is far away from the battery pack 10, so that interference of the battery pack 10 to plug in the plug connector 22 plug process is avoided, the connection efficiency of the plug connector is improved, and the production efficiency of the battery device is further improved.

Further, the battery device provided in the embodiment of the present disclosure may further include an end insulating plate 30, a transmission support 40, and a harness holder 60, where the end insulating plate 30 is disposed at an end of the battery pack 10 along the battery arrangement direction, the transmission support 40 is disposed at the end insulating plate 30, and the harness holder 60 is connected to the transmission support 40. One side of the harness holder 60 to which the plug 22 is attached extends beyond the side of the battery pack 10.

The following will describe each part of the battery device provided in the embodiments of the present disclosure in detail:

the battery pack 10 includes a plurality of batteries 11, and the plurality of batteries 11 are sequentially arranged. By way of example, the battery 11 provided in the embodiments of the present disclosure is a rectangular or nearly rectangular battery. The battery 11 has two large surfaces disposed opposite to each other and four small surfaces located between the two large surfaces, and the large surfaces have an area larger than that of the small surfaces. The large faces of adjacent cells in the battery pack 10 are opposite, that is, the large faces of adjacent cells in the battery pack 10 are opposite.

The large surface of the battery 11 has a rectangular or nearly rectangular structure, and has long sides and short sides, and the length of the long sides of the large surface is longer than that of the short sides. The direction along the long side of the large surface of the battery 11 is the battery length direction, and the harness assembly 20 is provided at the end of the battery in the length direction.

As shown in fig. 3, the battery 11 may include a housing 110, a battery core and a pole assembly 120, where the housing 110 is provided with a receiving cavity, the battery core is disposed in the receiving cavity, and the pole assembly 120 is disposed in the housing 110 and connected with the battery core. The case 110 is used to form the outer contour of the battery and protect the devices inside the case 110, the case 110 has a rectangular or nearly rectangular structure, and the post assembly 120 is provided at the end of the case 110 in the length direction.

The pole assembly 120 and the housing 110 are insulated, for example, an insulating member may be used for insulation, or an insulating coating may be used for insulation, which is not limited herein, and may be selected according to practical requirements.

In one possible embodiment of the present disclosure, the pole assembly 120 may be provided on an end surface of the housing 110 in the length direction. The battery 11 may include a first pole assembly connected to one tab of the battery cell and a second pole assembly connected to the other tab of the battery cell. The first and second pole assemblies may be provided at one end face of the housing 110 in the length direction, or the first and second pole assemblies may be provided at both ends of the housing 110 in the length direction.

In another possible embodiment of the present disclosure, the post assembly 120 may be provided on the large surface of the battery case 110, and the post assembly 120 is provided on the large surface in a region near the short side of the large surface. The pole assembly 120 is disposed on one large surface of the housing 110, and a recess is disposed on the other large surface of the housing 110, and a projection of the pole assembly 120 on the large surface is located in the recess. The two pole assemblies 120 may be provided at the same end of the battery case 110, or at both ends of the battery case 110. When the two pole assemblies 120 are disposed at two ends of the battery, corresponding concave portions are disposed at two ends of the battery.

When a plurality of batteries 11 are sequentially stacked, the post assembly 120 of the first battery may be positioned at the recess of the second battery, thereby preventing the post assembly 120 protruding from the surface of the case 110 from interfering when the batteries are stacked. The first cell and the second cell are two adjacent cells 11 in the battery pack 10.

The housing 110 may include a first housing portion 101 and a second housing portion 102, the first housing portion 101 and the second housing portion 102 being connected to form a closed receiving cavity. For example, the first housing part 101 and the second housing part 102 may be connected by means of welding.

In order to facilitate the connection between the first housing part 101 and the second housing part 102, a flange protruding from the small surface of the housing 110 may be disposed on the first housing part 101 and/or the second housing part 102, and the flange may be welded during welding, so as to facilitate the welding, and to avoid high temperature damage to the battery cell during the welding.

By way of example, the first housing part 101 may be of flat plate construction, and the second housing part 102 is provided with receiving pockets. The second housing portion 102 may include an end plate, a frame, and a flange, where the end plate and the first housing portion 101 are disposed opposite to each other, the frame is disposed on a side of the end plate facing the first housing portion 101, the frame and the end plate are connected to form a receiving recess, the flange is disposed on a side of the frame away from the end plate, and the flange extends to an outside of the frame. The flange and the second housing portion 102 are welded to form a flange on the housing 110.

It will be appreciated that in the embodiment of the present disclosure, the first housing portion 101 and the second housing portion 102 may also be provided with receiving recesses, where the two receiving recesses together form the receiving cavity of the housing 110 when the first housing portion 101 and the second housing portion 102 are buckled.

The first housing portion 101 includes a first plate, a first peripheral frame and a first folded edge, the first peripheral frame is disposed on a surface of the first plate facing the second housing portion 102, the first folded edge is disposed on an end of the first peripheral frame away from the first plate, and the first folded edge extends outwards. The second housing portion 102 includes a second plate, a second enclosure frame, and a second folded edge, where the second enclosure frame is disposed on a surface of the second plate facing the first housing portion 101, and the second folded edge is disposed on an end of the second enclosure frame away from the second plate, and the second folded edge extends outwards. The first and second folds are welded to form a flange on the housing 110.

When the case 110 is provided with a flange on a small surface, as shown in fig. 4, the battery pack 10 may further include an insulating holder 12, the insulating holder 12 is fitted over the battery 11, and the insulating holder 12 surrounds the small surface of the battery 11. An accommodating groove for accommodating a flange on the battery is provided on the insulating holder 12. Insulation of devices such as a battery and a box is achieved through the insulating support 12 surrounding the battery on the one hand, and the battery 11 is supported through the insulating support 12 on the other hand, so that the flange of the battery 11 is prevented from being crushed during stacking, the flange of the battery 11 is protected, and stacking of the battery 11 is facilitated.

The insulating supports 12 and the batteries 11 in the battery pack 10 are in one-to-one correspondence, that is, each battery is sleeved with one insulating support 12. When the pole assembly 120 is disposed on one large surface of the housing 110 and the recess is disposed on the other large surface of the housing 110, a recess matching the housing 110 may also be disposed on the insulating support 12.

The wire harness assembly 20 includes a wire harness 21 and a plug 22, the plug 22 is connected to an end of the wire harness 21, and the plug 22 is used for connecting a signal output device. For example, the plug 22 is provided with a plug interface, and the signal output device is a signal output line, and the signal output line is plugged into the plug interface on the plug 22.

The wire harness 21 may be a flexible circuit board provided at a side portion of the battery pack 10 in the battery arrangement direction. The flexible circuit board is used to transmit low voltage signals (e.g., temperature signals, humidity signals, voltage value signals, or current value signals, etc.) in the battery device.

The wire harness 21 is provided with a bent portion 211 at one end thereof close to the plug 22, and the bent portion 211 is bent toward a side away from the battery pack 10. It is noted that the bending of the bending portion 211 to the side away from the battery pack 10 means that the bending portion 211 is away from the side of the battery pack 10. The two ends of the battery pack 10 in the cell arrangement direction are end faces, two faces parallel to the bottom plate in the battery pack 10 are a top face and a bottom face, and faces perpendicular to the bottom face and the end faces in the battery pack 10 are side faces.

By way of example, the wire harness 21 may include a main body portion 212 and a bent portion 211, the main body portion 212 extending in the battery arrangement direction; the bent portion 211 is provided at an end of the body portion 212, and the distance between the bent portion 211 and the battery pack 10 increases in a direction approaching the plug 22 (linear increase or non-linear increase).

The main body 212 of the harness 21 is connected to the battery pack 10, and the bending portion 211 connects the main body 212 and the plug 22. The wire harness assembly 20 may further include a plurality of detection units, which may be provided to the battery pack 10, to collect data signals of the battery pack 10. For example, the detection unit may be a temperature sensor, and the temperature sensor is disposed on a pole of the battery to collect the temperature of the pole of the battery. Of course, in practical applications, the detecting unit may also be a humidity sensor, a voltage sensor, or a current sensor, which is not specifically limited in the embodiments of the present disclosure.

The end of the main body 212 near the plug 22 extends at least to the end of the battery pack 10 along the battery arrangement direction, and by extending the end of the main body 212 to the end of the battery pack 10, the battery pack 10 can be connected with the main body 212, so that the connection between the wire harness 21 and the battery pack 10 is prevented from being bent, and the connection between the battery pack 10 and the wire harness 21 is prevented from being loosened.

It should be noted that, in the embodiment of the present disclosure, the main portion 212 extends to the end of the battery pack 10, which means that the end of the main portion 212 is close to the end of the battery pack 10, and does not necessarily mean that the end of the main portion 212 is flush with the end of the battery pack 10. When the end of the body portion 212 abutting the plug 22 extends to the cell in the battery pack 10 adjacent to the end insulating plate 30, the body portion 212 is considered to extend to the end of the battery pack 10.

The bending portion 211 is disposed at one end of the main body 212 near the connector 22, and two ends of the bending portion 211 are respectively connected to the connector 22 and the main body 212. The distance between the bent portion 211 and the side of the battery pack 10 increases in the direction approaching the plug 22. For example, the bending portion 211 may be a flat bending portion 211, or the bending portion 211 may be a curved bending portion 211.

The plug 22 is connected to one end of the bending portion 211 away from the main portion 212, and the plug 22 is provided with a plug interface, and the plug direction of the plug interface is parallel to the battery arrangement direction. For example, the plug 22 is plugged with a signal output line, and the direction of plugging the signal output line on the plug 22 is parallel to the arrangement direction of the batteries.

The bus bar assembly 50 is provided at a side of the battery pack 10 in the cell arrangement direction, and the bus bar assembly 50 is used to electrically connect (in series or in parallel) a plurality of cells in the battery pack 10. For example, the busbar assembly 50 includes a plurality of busbars, each of which electrically connects adjacent cells.

The wire harness 21 can be arranged on one side of the bus bar far away from the battery pack 10, and because the heating condition of the bus bar is serious in practical application, a temperature sensor can be arranged on the bus bar, the temperature sensor is connected with the wire harness 21, and a temperature signal of the bus bar is transmitted to the plug 22 through the wire harness 21 and is transmitted to the thermal management system through the plug 22 and the signal output line.

The plurality of buss bars may include a connecting buss bar, which may be connected to the transfer support 40, and an output electrode buss bar, which connects adjacent cells 11. The connecting bus bar may include a bus body, a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion being connected to both ends of the bus body, respectively. The current collector is located at a side of the battery pack 10, and a first connection part extends from the body part 212 to the post assembly 120 of the first battery and connects the post assembly 120 of the first battery, and a second connection part extends from the body part 212 to the post assembly 120 of the second battery and connects the post assembly 120 of the second battery. The first cell and the second cell are adjacent two cells in the battery pack 10.

The end insulating plates 30 are provided at the ends of the battery pack 10 in the cell arrangement direction, and the end insulating plates 30 serve to insulate the battery pack 10 from the beams. When the battery device is a battery pack, the battery pack 10 is provided in a battery compartment of the battery device, the battery compartment being surrounded by a bottom plate and a plurality of beams. The beams are sequentially connected to form a surrounding frame, and the surrounding frame is connected with the bottom plate to form a battery compartment.

In order to secure the safety of the battery device, the battery pack 10 needs to be insulated from the beam of the battery compartment. An end insulating plate 30 is provided at an end of the battery pack 10 in the cell arrangement direction, and insulation of the battery pack 10 from the beam is achieved. The end insulating plate 30 is made of an insulating material, for example, the material of the end insulating plate 30 may be plastic, rubber, ceramic, or the like.

The battery pack 10 is provided with end insulating plates 30 at both ends in the battery arrangement direction, respectively, and the transmission support 40 may be provided on either one of the two end insulating plates 30, or the transmission support 40 may be provided on each of the two end insulating plates 30, which is not particularly limited in the embodiment of the present disclosure.

The transmission support 40 is provided to the end insulating plate 30, and the transmission support 40 is used to realize the transfer between the battery and the external device. By way of example, the transmission mount 40 in the disclosed embodiment may be a high voltage mount for switching high voltage signals to and from the battery.

Wherein, the transmission support 40 may be provided at an end of the end insulating plate 30 in the length direction; or the transfer support 40 may be provided on the side of the end insulating plate 30 remote from the base plate. Or the transmission support 40 is arranged in the accommodating notch at the end of the end insulating plate 30. The transmission support 40 and the end insulating plate 30 may be of an integrally formed structure, for example, the transmission support 40 and the end insulating plate 30 are integrally formed by injection molding. Of course, in practical application, the transmission support 40 and the end insulating plate 30 may also be formed as separate structures, which is not limited in this embodiment of the disclosure.

In some embodiments, as shown in fig. 5, the transfer mount 40 may include a mount body 41 and a connection block 42, the mount body 41 and the end insulating plate 30 being connected, the connection block 42 being provided to the mount body 41, the connection block 42 being used to connect the busbar assembly 50. The support body 41 is made of an insulating material, for example, the material of the support body 41 may be the same as that of the end insulating plate 30. The connection block 42 is a conductive material, and the connection block 42 is electrically connected to the busbar assembly 50.

The connection block 42 may be embedded in the support 41, that is, the connection block 42 is fixedly connected to the support 41. Alternatively, the connection block 42 and the support body 41 may be movably connected, for example, threads are provided on the outer side of the connection block 42, a threaded hole is provided on the support body 41, and the connection block 42 is mounted in the threaded hole. The height of the connection block 42 can be adjusted by rotating the connection block 42. The connection of the connection block 42 and the bus bar assembly 50 is facilitated, and the problem of poor foundations of the bus bar assembly 50 and the connection block 42 due to machining and assembly errors is avoided.

The transmission support 40 is provided at an end portion of the end insulator in the length direction, and a predetermined gap is provided between the transmission support 40 and the battery pack 10. That is, the surface of the transfer holder 40 adjacent to the battery is not in contact with the surface of the battery pack 10 at the end, and an air layer is formed between the transfer holder 40 and the battery. This increases the electrical distance from the battery to the transfer support 40, which is beneficial for improving the safety of the battery device.

In the embodiment of the present disclosure, a plurality of battery packs 10 may be provided in the battery case, and the plurality of battery packs 10 are partitioned by the middle beam. An end insulating plate 30 is arranged between the battery pack 10 and the middle beam, and the height of the end insulating plate 30 is higher than that of the middle beam. The transfer support 40 is connected to the end insulating plate 30, and the transfer post support may be in contact with the intermediate beam, supporting the transfer support 40 through the intermediate beam, and improving the stability of the transfer support 40.

The middle beam is located to transmission support 40, namely both sides of transmission support 40 all have group battery 10, connect in the both sides of the adapter of transmission support 40 all have group battery 10, so lead to plug 22 and signal output line to be interfered by group battery 10 when pegging graft, increased the degree of difficulty that plug 22 pegged graft, reduced battery device's production efficiency, buckle to the one side of keeping away from group battery 10 through the tip with pencil 21 in this disclosed embodiment for plug 22 keeps away from group battery 10, thereby avoided group battery 10 to interfere plug of plug 22, reduced plug 22's plug degree of difficulty, promoted battery device's production efficiency.

The plug 22 is connected to the harness holder 60, and one surface of the harness holder 60 connected to the plug 22 exceeds the side surface of the battery pack 10. The wire harness clamping seat 60 is connected with one surface of the plug connector 22 beyond the side surface of the battery pack 10, namely, the plug connector 22 is beyond the side surface of the battery pack 10, so that the battery pack 10 is further prevented from interfering with the plug connector 22.

The harness holder 60 is connected to the transmission support 40, and the harness holder 60 is connected to a side of the transmission support 40 adjacent to the connector 22. One end of the harness holder 60 is connected to the transmission support 40, and the other end of the harness holder 60 extends to the plug 22. That is, the plug 22 is fixed to the transmission support 40 by the harness holder 60. Of course, in some embodiments, the plug 22 may also be directly connected to the transmission support 40, which is not limited in this embodiment.

A first included angle is formed between the face of the transmission support 40 facing the plug 22 and the face of the end insulating plate 30 facing away from the battery pack 10, and a second included angle is formed between the face of the harness holder 60 facing the transmission support 40 and the face of the harness holder 60 facing the plug, and the first and second included angles are complementary. By setting the first included angle and the second included angle to complement each other, seamless connection between the transmission support 40 and the wire harness clamping seat 60 is realized, so that the wire harness clamping seat 60 is perpendicular to the battery arrangement direction, the wire harness clamping seat 60 and the plug connector 22 are convenient to link, and the plug connector 22 is ensured to be parallel to the battery arrangement direction.

The wire harness clamping seat 60 and the transmission support 40 can be connected in a clamping manner, as shown in fig. 6, for example, a first connection structure 61 is arranged on the wire harness clamping seat 60, a second connection structure 43 is arranged on the transmission support 40, and the first connection structure 61 and the second connection structure 43 are matched to realize connection of the wire harness clamping seat 60 and the transmission support 40.

The first connection structure 61 is a buckle, the second connection structure 43 is a clamping hole, and the buckle is clamped in the clamping hole. The buckle can be a clamping protrusion arranged on one surface of the wire harness clamping seat 60 facing the transmission support 40, and the clamping hole is a recess arranged on one surface of the transmission support 40 facing the wire harness clamping seat 60.

It will be appreciated that in the embodiment of the present disclosure, the first connection structure 61 may be a clip hole, and the second connection structure 43 may be a clip. The buckle can be a clamping protrusion arranged on one surface of the transmission support 40 facing the wire harness clamping seat 60, and the clamping hole is a recess arranged on one surface of the wire harness clamping seat 60 facing the transmission support 40.

The battery device provided by the embodiment of the disclosure can be applied to an electric vehicle, and when the battery is used for the electric vehicle, the battery device can be a battery pack, and the battery pack is installed on the electric vehicle and provides energy for the electric vehicle.

In practice, the battery pack may be mounted to the frame of an electric vehicle. The battery pack can be fixedly connected with the frame. Or the battery pack can be a modularized battery pack which can be detachably connected to the vehicle body, so that the battery pack is convenient to replace.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. A battery device, characterized in that the battery device comprises:

a battery pack including a plurality of sequentially arranged batteries;

2. The battery device according to claim 1, wherein the wire harness includes:

a main body portion extending in a cell arrangement direction;

and the bending part is arranged at the end part of the main body part, and the distance between the bending part and the battery pack increases gradually along the direction approaching to the plug-in connector.

3. The battery device of claim 2, wherein the battery device further comprises:

and the busbar assembly is arranged between the wire harness and the battery pack, and is connected with the main body part.

4. The battery device according to claim 2, wherein an end of the main body portion adjacent to the plug extends at least to an end of the battery pack in the battery arrangement direction.

5. The battery device of claim 1, wherein the battery device further comprises:

the end insulating plate is arranged at the end part of the battery pack along the arrangement direction of the batteries;

the wire harness clamping seat is connected with the end insulating plate, the plug connector is connected to the wire harness clamping seat, and one surface of the wire harness clamping seat, which is connected with the plug connector, exceeds the side surface of the battery pack.

6. The battery device of claim 5, wherein the battery device further comprises:

the transmission support is arranged at the end insulating plate, and the wire harness clamping seat is connected to the transmission support.

7. The battery device of claim 6, wherein the harness holder is connected to a side of the transmission support adjacent to the connector.

8. The battery device of claim 6, wherein a first included angle is formed between a face of the transmission support facing the plug and a face of the end insulating plate facing away from the battery pack, and a second included angle is formed between a face of the harness holder facing the transmission support and a face of the harness holder facing the plug, the first and second included angles being complementary.

9. The battery device according to any one of claims 1 to 8, wherein the plug connector is provided with a plug connector, and the plug connector is parallel to the battery array direction.

10. The battery device of any one of claims 1-8, wherein the wiring harness is a flexible circuit board.