CN220821818U

CN220821818U - Wire harness box and battery pack

Info

Publication number: CN220821818U
Application number: CN202322113291.2U
Authority: CN
Inventors: 张铭
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2024-04-19
Anticipated expiration: 2033-08-07

Abstract

The application discloses a wire harness box and a battery pack, wherein the wire harness box comprises: a main plate on which a first surface adapted to support a wire harness and a second surface adapted to abut against a lower case of the battery pack are formed; the connecting piece is arranged on the main board, and the main board is suitable for being detachably connected with the lower shell of the battery pack through the connecting piece; a first accommodating groove capable of accommodating the wire harness main wire and a plurality of second accommodating grooves capable of accommodating a plurality of wire harness branch wires are formed on the first surface of the main board, and the first accommodating groove is communicated with the plurality of second accommodating grooves. According to the application, the wire harness box and the corresponding design scheme are introduced, so that the wire harness in the battery pack can be better organized and arranged, and the wire harness is effectively tidied and protected. Therefore, the space utilization rate of the battery pack can be improved, the limited arrangement space is fully utilized, the battery capacity is further increased, and the increasing demands of users on the endurance mileage of the electric automobile are met.

Description

Wire harness box and battery pack

Technical Field

The application relates to the technical field of battery pack wiring harnesses, in particular to a wiring harness box and a battery pack.

Background

Under the support of national and local policies to the new energy automobile industry, new energy automobiles are increasingly accepted by users, the development trend of the industry is better, and the requirements of users on the endurance of electric automobiles are also increasing, however, the requirements on battery capacity and the limitation on arrangement space are limited, so that the requirements on the space utilization rate of battery packs are higher. The arrangement of the battery pack is less and less in arrangement space for other parts except the battery cells, and particularly, the arrangement and protection of the battery pack harness are quite difficult.

A battery pack harness is a collection of wires that connect individual components in a battery pack. Which connects the battery cells, the protection circuit, the charge and discharge controller, the temperature sensor, etc., allowing communication and power transmission therebetween. The location where the wiring harnesses are placed varies depending on the design of the battery pack, but they are typically placed in locations that are safe and do not interfere with the operation of the other components of the battery pack. Sometimes they are placed at the edges of the battery pack and sometimes they pass through the battery cells.

The wire harness is used as a flexible structure body, has high requirements on the structure of peripheral parts in a right-angle bending use environment, has space requirements on the width and the thickness of an arrangement space, and for example, one main wire can be separated to form a plurality of branch wires in a certain position in a battery pack so as to be connected to each battery unit or battery module. At present, the arrangement and protection of the main line separation part are lacked in the battery pack, so that the space utilization rate of the battery pack is lower, and the protection required by the wire harness is also insufficient.

Disclosure of utility model

Based on this, it is necessary to provide a harness box and a battery pack in view of the above technical problems.

In one aspect of the present application, there is provided a wire harness box including:

a main plate on which a first surface adapted to support a wire harness and a second surface adapted to abut against a lower case of the battery pack are formed;

The first connecting piece is arranged on the main board, and the main board is suitable for being detachably connected with the lower battery pack shell through the first connecting piece;

A first accommodating groove capable of accommodating the wire harness main wire and a plurality of second accommodating grooves capable of accommodating a plurality of wire harness branch wires are formed on the first surface of the main board, and the first accommodating groove is communicated with the plurality of second accommodating grooves.

In some embodiments, the first surface of the motherboard is provided with:

The two main line baffles are oppositely arranged and fixed on the main board, and a first accommodating groove which is suitable for accommodating the main line of the wire harness is formed between the two main line baffles;

The two branch line baffles are oppositely arranged and respectively fixed on the same side of the two main line baffles, and a preset included angle is formed between the two branch line baffles and the two main line baffles;

The side baffle is arranged on the main board and positioned on one side of the branch baffle, which deviates from the main line baffle, and two second accommodating grooves are formed between the two branch baffles and the side baffle.

In some embodiments, the first surface of the motherboard is further provided with:

The two clapboards are respectively arranged in the two second accommodating grooves, and each second accommodating groove can be divided into two third accommodating grooves by the clapboards.

In some embodiments, the main line baffles, the branch line baffles, the side baffles, and the end of the separator facing away from the main plate are adapted to abut the upper housing of the battery pack.

In some embodiments, the end of the side barrier facing away from the main plate is provided with a second connector, and the side barrier is adapted to be detachably connected to the upper housing of the battery pack via the second connector.

In some embodiments, the first surface of the main board is provided with a flexible material.

In some embodiments, the first and second receiving grooves are open on the first surface of the motherboard, and the first and second receiving grooves are recessed toward the second surface of the motherboard.

In a second aspect of the present application, there is also provided a battery pack including the above-mentioned harness box.

In some embodiments, the battery pack further comprises:

the lower shell is provided with a containing groove capable of containing the wire harness box, and a first mounting hole is formed in the lower shell and is suitable for being matched with a first connecting piece on the main board;

the upper shell is suitable for being connected with the lower shell, and a second mounting hole is formed in the upper shell and is suitable for being matched with a second connecting piece on the side baffle;

The module is suitable for being fixed between the upper shell and the lower shell.

In some embodiments, the first connector and the second connector each comprise:

The elastic plate can elastically deform and can be inserted into the first mounting hole and/or the second mounting hole;

The bulge is arranged at the free end of the elastic plate in a bulge way, can penetrate through the first mounting hole and/or the second mounting hole and is clamped with the elastic plate.

Compared with the prior art, the application has the beneficial effects that:

1. The space utilization rate of the battery pack is improved: through introducing pencil box and corresponding design, this technical scheme can organize and arrange the pencil in the battery package better for the pencil obtains effective arrangement and protection. Therefore, the space utilization rate of the battery pack can be improved, the limited arrangement space is fully utilized, the battery capacity is further increased, and the increasing demands of users on the endurance mileage of the electric automobile are met.

2. And the safety of the wire harness is improved: the reasonable setting of pencil box in the battery package can provide good pencil overall arrangement and protection, reduces the impaired and risk of wearing and tearing of pencil. Therefore, the stability and the safety of the battery pack can be improved, potential problems caused by bending of the wire harness due to the environment are avoided, and the service life of the battery pack is prolonged.

3. Is convenient for maintenance and repair: the wire harness box is designed to enable the wire harnesses to be more orderly, and maintenance and repair are facilitated. When the wire harness needs to be overhauled or replaced, technicians can operate more easily, maintenance efficiency is improved, and maintenance cost is reduced.

4. Increase the overall stability of the battery pack: the design of pencil box and battery package closely combines, can effectively fix pencil and other subassemblies, increases the overall stability of battery package. The method has important significance for the use of the electric automobile under complex road conditions and vibration environments.

5. Is convenient for production and assembly: the design of the wire harness box enables the production and assembly processes of the battery pack to be simplified and efficient. This helps to reduce production cost, improve production efficiency, and promote further development of new energy automobile industry.

Drawings

Fig. 1 is a schematic view showing a harness box in an exemplary embodiment of the present application;

Fig. 2 is a schematic diagram showing a practical application of the harness box according to an exemplary embodiment of the present application;

Fig. 3 is a schematic view showing a first connector and a second connector according to an exemplary embodiment of the present application.

In the figure: 100. a harness box; 200. a lower housing; 300. a module; 1. a main board; 11. a main line baffle; 12. a branch line baffle; 13. side baffles; 14. a partition plate; 15. a third mounting hole; 2. a first connector; 21. an elastic plate; 22. a projection.

Detailed Description

The following description of the embodiments of the present application 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 application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present application. Furthermore, 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.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

As described in the background art, as a flexible structure, the wire harness has a high requirement for the structure of peripheral components in a right angle bending use environment, and a space requirement for the width and thickness of the arrangement space is required, for example, one main wire may be separated to form a plurality of branch wires in a certain place in the battery pack so as to be connected to each battery cell or battery module. At present, the arrangement and protection of the main line separation part are lacked in the battery pack, so that the space utilization rate of the battery pack is lower, and the protection required by the wire harness is also insufficient.

To improve the above-described problems, in one aspect of the present application, a wire harness box 100 is proposed, referring to fig. 1 and 2, which mainly includes: a main board 1 and a first connector 2. The main board 1 is used for supporting the wire harness and can arrange and protect the branch positions of the wire harness; the first connector 2 is used for realizing connection of the main board 1 and the battery pack.

Specifically, in the exemplary embodiment, the main board 1 is a core component of the harness box 100 that functions to support the harness and connect with the battery pack lower case 200. The main plate 1 is made of a high-strength, abrasion-resistant material, such as engineering plastic or aluminum alloy, to ensure its stability and reliability in the battery pack.

Further, in the exemplary embodiment, the main board 1 is formed with two surfaces: a first surface and a second surface. The first surface is the inside of the harness box 100 for accommodating and organizing the wire harnesses. On the first surface, there are provided components such as a main line barrier 11, a branch line barrier 12, a side barrier 13, and a partition 14, which are vertically fixed to the main board 1 to form a wire harness accommodation structure. Still further, the main line baffle 11, the branch line baffle 12, the side baffle 13 and the partition plate 14 are away from one end of the main board 1 and are suitable for being abutted against the upper shell of the battery pack, the one end of the side baffle 13, which is away from the main board 1, is provided with a second connecting piece, and the side baffle 13 is suitable for being detachably connected with the upper shell of the battery pack through the second connecting piece. Still further, the junction of the main line baffle 11, the branch line baffle 12, the side baffle 13 and the partition plate 14 with the main board 1 all adopts arc transition to avoid damaging the wire harness, and in addition, the main line baffle 11, the branch line baffle 12, the side baffle 13 and the partition plate 14 are all arranged as arc edges everywhere to further avoid damaging the wire harness.

Further, in the exemplary embodiment, two main line baffles 11 are provided, the two main line baffles 11 are oppositely arranged and fixed on the main board 1, and a first accommodating groove suitable for accommodating the main line of the wire harness is formed between the two main line baffles 11, and the main line baffles 11 are fixed on the main board 1, so that the main line of the wire harness can be kept in order, and loosening and confusion of the main line of the wire harness can be prevented.

Further, in the exemplary embodiment, two branch line baffles 12 are provided, two main line baffles 11 are disposed opposite to each other and are respectively fixed on the same side of the two main line baffles 11, and a predetermined included angle is formed between the two branch line baffles 12 and the two main line baffles 11. Specifically, the preset included angle is 90 °.

Further, in the exemplary embodiment, the side baffle 13 is disposed on the main board 1 and is located at a side of the branch baffle 12 facing away from the main line baffle 11, and two second accommodating grooves are formed between the two branch baffles 12 and the side baffle 13, so as to provide accommodating spaces for the branch lines of the wire harness.

Further, in the exemplary embodiment, the partition 14 is provided in two and is respectively provided in two second accommodating grooves, each of which can be divided into two third accommodating grooves by the partition 14, thereby providing accommodating spaces for more wire harness branch wires.

Further, in the exemplary embodiment, the second surface is an outer surface of the main board 1 for connection with the battery pack lower case 200. The first connector 2 is provided on the second surface, and the harness box 100 and the battery pack are secured together by detachably connecting the first connector 2 with the battery pack lower case 200.

Further, in the exemplary embodiment, the first surface of the main board 1 is further provided with a flexible material, such as rubber or silica gel, which helps the wire harness maintain a good state in the case of bending and extrusion, so that it can adapt to complex environments such as right-angle bending, and the durability of the wire harness is improved.

Specifically, in the exemplary embodiment, the lower housing 200 is provided with a first mounting hole adapted to mate with the first connector 2 on the motherboard 1, and the upper housing is provided with a second mounting hole adapted to mate with the second connector on the side shield 13. Referring to fig. 3, the first and second connection members 2 and 22 each include an elastic plate 21 and a protrusion 22, wherein the elastic plate 21 is elastically deformable and is insertable into the first and/or second mounting holes; the protruding portion 22 protrudes from the free end of the elastic plate 21, can pass through the first mounting hole and/or the second mounting hole, and is clamped with the elastic plate 21.

Further, in the exemplary embodiment, the first connection members 2 on the main board 1 are provided in plurality and distributed on the peripheral side of the main board 1; the second connection piece on the side flap 13 is provided with one and is arranged towards the upper housing.

Still further, referring to fig. 1 and 2, the third mounting hole 15 is formed in the main board 1, the third connecting piece is disposed at a corresponding position on the lower housing 200, the third connecting piece on the lower housing 200 is connected with the third mounting hole 15 in a matching manner, and the main board 1 and the lower housing 200 can be connected in an interlocking manner, so that the stability of the harness box 100 is improved.

In other embodiments, the motherboard 1 is formed as a thicker motherboard 1 than in the exemplary embodiment, the first and second receiving slots are open on a first surface of the motherboard 1, and the first and second receiving slots are recessed toward a second surface of the motherboard 1. So that the main wire and the branch wire of the wire harness can be embedded in the first accommodation groove and the second accommodation groove.

In a second aspect of the present application, a battery pack is also provided, referring to fig. 2, which includes a harness box 100, an upper case, a lower case 200, and a module 300. Wherein, the lower housing 200 is formed with a receiving groove capable of receiving the harness box 100, and the lower housing 200 is provided with a first mounting hole adapted to cooperate with the first connector 2 on the motherboard 1; the upper shell is suitable for being connected with the lower shell 200, and a second mounting hole is formed in the upper shell and is suitable for being matched with a second connecting piece on the side baffle 13; the module 300 is adapted to be secured between the upper and lower housings 200.

Compared with the prior art, the application has the beneficial effects that:

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present application, and the present application is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present application has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A wire harness box, characterized by comprising:

The first surface of the main board is provided with a first accommodating groove capable of accommodating a wire harness main wire and a plurality of second accommodating grooves capable of accommodating a plurality of wire harness branch wires, and the first accommodating grooves are communicated with a plurality of second accommodating grooves.

2. The wire harness box according to claim 1, wherein the first surface of the main board is provided with:

The two main line baffles are oppositely arranged and fixed on the main board, and a first accommodating groove which is suitable for accommodating a main line of the wire harness is formed between the two main line baffles;

The side baffles are arranged on the main board and are positioned on one side, deviating from the main line baffle, of the branch line baffles, and two second accommodating grooves are formed between the two branch line baffles and the side baffles.

3. The wire harness box according to claim 2, wherein the first surface of the main board is further provided with:

The two partition plates are respectively arranged in the two second accommodating grooves, and each second accommodating groove can be divided into two third accommodating grooves by the partition plates.

4. The wire harness box as claimed in claim 3, wherein the main line baffle, the branch line baffle, the side baffle and the end of the partition facing away from the main plate are adapted to abut against an upper case of the battery pack.

5. The wire harness box as claimed in claim 4, wherein a second connection member is provided on the side shield, the side shield being adapted to be detachably connected with an upper case of the battery pack through the second connection member.

6. The harness box as claimed in any one of claims 1 to 5, wherein a flexible material is provided on the first surface of the main board.

7. The wire harness box of claim 1, wherein the first and second receiving grooves are open on the first surface of the main board, and the first and second receiving grooves are recessed toward the second surface of the main board.

8. A battery pack, comprising:

the wire harness box of any one of claims 1-7.

9. The battery pack of claim 8, wherein the battery pack further comprises:

The lower shell is provided with a containing groove capable of containing the wire harness box, and a first mounting hole is formed in the lower shell and is suitable for being matched with the first connecting piece on the main board;

the upper shell is suitable for being connected with the lower shell, a second mounting hole is formed in the upper shell, and the upper shell is suitable for being matched with the second connecting piece on the side baffle;

And the module is suitable for being fixed between the upper shell and the lower shell.

10. The battery pack of claim 9, the first connector and the second connector each comprising:

The protruding part is arranged at the free end of the elastic plate in a protruding mode, can penetrate through the first mounting hole and/or the second mounting hole, and is clamped with the elastic plate.