CN209993667U

CN209993667U - Battery pack

Info

Publication number: CN209993667U
Application number: CN201920481589.XU
Authority: CN
Inventors: 娄豫皖; 许玉林; 王爱淑; 印杏莲; 李佳旭
Original assignee: Suzhou Ankao Energy Co Ltd
Current assignee: Suzhou Ankao Energy Co Ltd
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2020-01-24
Anticipated expiration: 2029-04-10

Abstract

The application discloses battery package includes: the battery box, the battery module accommodated in the battery box, the wire harness located in the battery box; the battery module includes: the battery support is used for supporting the battery monomers and connecting the battery monomers together; the wire harness support is characterized by further comprising a wire harness pressing block provided with an inserting pin, at least one of the battery supports is provided with an inserting hole matched with the inserting pin, the inserting pin is fixedly inserted into the inserting hole, and the wire harness is pressed between the wire harness pressing block and the battery support. The battery pack is internally wired neatly, and the possibility that the wire harness and the metal member rub or are melted by a high-temperature metal member is reduced.

Description

Battery pack

Technical Field

The application relates to the field of batteries, in particular to a battery pack.

Background

Under the dual pressure drive of emission regulations and energy consumption, "motorization" has become an undisputed inevitable trend in the global automobile industry. Meanwhile, the method also brings a brand new development opportunity under the background of energy revolution brought by the automobile industry in China. However, today, the domestic new energy electric automobile industry is still in a continuous optimization and exploration stage.

The number of types of signals to be monitored in the battery pack is large, and the number of wiring harnesses in the battery pack is large and messy. However, the wiring harness is not fixed, so that when the battery pack shakes in the use process, the wiring harness can rub other metal structural members in the battery pack, an insulating layer of the wiring harness is damaged, and short circuit failure is finally caused. In addition, the loose position of the wire harness may cause the wire harness to come into direct contact with the metal structural member. When the battery package appears the local high temperature condition that causes such as outside burning on a fire, because metal heat conductivity is good, its self temperature is higher, therefore the pencil can take place to melt rather than direct contact's insulating layer, and then leads to the pencil short circuit to become invalid, even the inside fire of battery package for battery package security is poor.

Disclosure of Invention

The purpose of the application is: in view of the above problems, a battery pack with a finished wire is provided to reduce the possibility of friction between the wire harness and the metal member or melting of the wire harness by the high temperature metal member.

The technical scheme of the application is as follows:

a battery pack, comprising:

a battery box, a battery box and a battery box,

a battery module accommodated in the battery box, and

a wire harness located within the battery box;

the battery module includes:

a plurality of battery cells, and

a plurality of battery supports for supporting the battery cells and connecting the battery cells together;

the wire harness support is characterized by further comprising a wire harness pressing block provided with an inserting pin, at least one of the battery supports is provided with an inserting hole matched with the inserting pin, the inserting pin is fixedly inserted into the inserting hole, and the wire harness is pressed between the wire harness pressing block and the battery support.

On the basis of the technical scheme, the application also comprises the following preferable scheme:

the plug hole axially penetrates through the battery support, the wire harness pressing block is provided with two plug pins, and the two plug pins are respectively and fixedly inserted into two axial end portions of the plug hole.

The battery supports are sequentially arranged from left to right at intervals, each battery support is provided with a plurality of battery insertion holes which extend left and right and are parallel to each other, a plurality of battery monomers which are arranged in parallel to each other and are inserted into the battery insertion holes of the two adjacent battery supports at the left end and the right end are uniformly distributed between any two adjacent battery supports, and the insertion holes are formed in the side edge parts of the battery supports and the axes of the insertion holes extend left and right.

At least two plug holes are formed in each battery support.

The wire harness pressing block comprises a pressing block body and the inserting pin integrally connected with the pressing block body, a horizontally extending convex rib is integrally formed on the side portion of the pressing block body, and the wire harness is pressed between the convex rib and the battery support.

The plug pin is a cylindrical pin with a U-shaped outer contour, one end of the plug pin is integrally connected with the pressing block body, and the other end of the plug pin is a plug end inserted into the plug hole.

Two inserting pins I on the wire harness pressing block are symmetrically arranged left and right.

The plug pin, the pressing block body and the convex rib are of an integral injection molding structure.

The battery single bodies between two adjacent battery supports are distributed in a matrix shape in parallel to form a battery matrix, and the inserting holes are arranged at the side positions of the battery matrix and at the middle position between two adjacent battery single bodies.

The wire harness pressing blocks are arranged in at least two numbers, and at least two of the wire harness pressing blocks are respectively pressed on two radial sides of the wire harness.

The application has the advantages that:

1. this application can dismantle fixed connection's pencil briquetting at battery box internal configuration and battery support to compress tightly the incasement pencil and be fixed in between aforementioned pencil briquetting and the battery module, make the pencil walk the line neatly, avoid the pencil to confuse in a jumble and the risk accident that the offset brought.

2. The structure of the wire harness pressing block and the assembly structure between the wire harness pressing block and the battery support are simple and ingenious, easy to manufacture and safe, and the wire harness at each part of the surface of the battery module can be fixed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a battery pack in an embodiment of the present application;

FIG. 2 is an enlarged view of section X1 of FIG. 1;

FIG. 3 is an enlarged view of section X2 of FIG. 1;

FIG. 4 is a schematic structural diagram of a wire harness pressing block in the embodiment of the present application;

wherein: 1-battery box, 2-battery module, 3-wiring harness pressing block, 201-battery monomer, 202-battery bracket 202 a-plug hole, 202 b-battery plug hole, 301-plug pin, 302-pressing block body and 303-convex rib.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings by way of specific embodiments. The present application may be embodied in many different forms and is not limited to the embodiments described in the present embodiment. The following detailed description is provided to facilitate a more thorough understanding of the present disclosure, and the words used to indicate orientation, top, bottom, left, right, etc. are used solely to describe the illustrated structure in connection with the accompanying figures.

One skilled in the relevant art will recognize, however, that one or more of the specific details can be omitted, or other methods, components, or materials can be used. In some instances, some embodiments are not described or not described in detail.

Furthermore, the technical features, aspects or characteristics described herein may be combined in any suitable manner in one or more embodiments. It will be readily appreciated by those of skill in the art that the order of the steps or operations of the methods associated with the embodiments provided herein may be varied. Thus, any sequence in the figures and examples is for illustrative purposes only and does not imply a requirement in a certain order unless explicitly stated to require a certain order.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

Fig. 1 to 4 show a preferred embodiment of a battery pack of the present application, which also includes a battery case 1, in which a battery module 2 and a wire harness 4 are arranged, and at least a part of the wire harness is led out from the battery module 2, as in the conventional battery pack. The battery module 2 includes a plurality of battery cells 201 and a plurality of battery holders 202 for supporting the battery cells 201 and connecting the battery cells 201 together.

Specifically, the battery cell 201 is a cylindrical lithium ion battery, two axial ends of the battery cell are a positive end and a negative end of the battery, respectively, and an outer contour of the battery holder 202 is substantially a rectangular flat plate structure. The battery holders 202 are vertically arranged and sequentially spaced from left to right, and each battery holder 2 is provided with a plurality of battery insertion holes 202b arranged in a matrix, and the battery insertion holes (hole axes thereof) are parallel to each other and extend in the left-right direction. A plurality of parallel battery cells 201 are disposed between any two adjacent battery clamps 202, and the left and right ends (i.e. the positive and negative ends) of the battery cells 201 are respectively inserted into the battery insertion holes of the two adjacent battery clamps. Each battery holder 202 is configured with a corresponding metal conductor to achieve the series-parallel connection of the respective battery cells 201 as described above. The outer side surfaces of the two battery clamps 202 positioned at the leftmost side and the rightmost side are respectively and fixedly connected with a collector plate, and the two collector plates are respectively used as a total positive output terminal and a total negative output terminal of the battery module.

The key improvement of the embodiment is that a wire harness pressing block 3 with an insertion pin 301 is further arranged in the battery box, each battery support 202 is provided with an insertion hole 202a matched with the insertion pin 301, the insertion pin 301 of the wire harness pressing block 3 is fixedly inserted into the insertion hole 202a, so that the wire harness pressing block 3 is fixedly connected with the battery support 202, and the wire harness is pressed between the wire harness pressing block 3 and the battery support 202.

The insertion hole 202a is not a blind hole, and is disposed axially through the battery holder 202. The harness pressure block 3 has a total of two plug pins 301, and the two plug pins 301 are respectively fixedly inserted into the axial end portions of the through-hole type plug holes 202 a.

In order to arrange as many wire harness pressing blocks 3 as possible in the battery module and flexibly adjust the installation position of the wire harness pressing block 3 on the battery module, each battery support 202 of the embodiment is provided with a plurality of insertion holes 201 with the above structure.

As shown in fig. 3, the wire harness pressing block 3 includes a pressing block body 302 and the above-mentioned plug pin 301 integrally connected to the pressing block body, and a horizontally extending rib 303 is integrally formed at a side portion of the pressing block body 302. The wire harness is pressed between the rib 303 and the battery holder 202.

In the present embodiment, a plurality of (four in fig. 1) harness pressing blocks 3 are provided, the harness pressing blocks 3 are arranged in pairs, and two harness pressing blocks 3 in each pair are respectively arranged on two radial sides of a harness 4 to press and fix the two sides of the harness, as shown in fig. 1.

Referring to fig. 3, the plug pin 301 is a cylindrical pin having a U-shaped outer profile, one end of which is integrally connected to the press block body 302, and the other end of which is a plug end inserted into the plug hole 201. Two inserting pins 301 on the wire harness pressing block 3 are symmetrically arranged left and right.

The plug pins 301, the pressing block body 302 and the convex ribs 303 are of an integral injection molding structure, and the plug pins 301 have certain plastic deformation capacity, so that the two plug pins 301 on the wire harness pressing block 3 can be conveniently inserted into two ends of the plug holes 201.

As can be seen from the above description, the battery cells 201 between two adjacent battery holders 202 are parallel to each other and distributed in a matrix, thereby forming a battery matrix. In this embodiment, the insertion holes 201 are disposed at the middle positions between two adjacent battery cells 201 at the side of the battery matrix (see fig. 2 and 3), so that the wiring harness pressing block 3 is disposed by using the space between the two adjacent battery cells 201, so that the structure of the battery module is increased and compacted, and the size of the battery module is not too large.

As shown in fig. 2, in the present embodiment, the wall surface of the insertion hole 202a is not an annular closed surface, but a part of the wall surface is missing, and approximates to a groove-like structure.

The above embodiments are only for illustrating the technical concepts and features of the present application, and the purpose of the embodiments is to enable people to understand the content of the present application and implement the present application, and not to limit the protection scope of the present application. All equivalent changes and modifications made according to the spirit of the main technical scheme of the application are covered in the protection scope of the application.

Claims

1. A battery pack, comprising:

a battery box (1),

a battery module (2) accommodated in the battery box, and

a wire harness (4) located within the battery box;

the battery module (2) includes:

a plurality of battery cells (201), and

a plurality of battery brackets (202) for supporting the battery cells (201) and connecting the battery cells (201) together;

the battery pack is characterized by further comprising a wiring harness pressing block (3) provided with an inserting pin (301), wherein an inserting hole (202a) matched with the inserting pin (301) is formed in at least one battery support (202), the inserting pin (301) is fixedly inserted into the inserting hole (202a), and the wiring harness (4) is pressed between the wiring harness pressing block (3) and the battery support (202).

2. The battery pack according to claim 1, wherein the insertion hole (202a) axially penetrates the battery holder (202), the harness pressing block (3) is provided with two insertion pins (301), and the two insertion pins (301) are respectively fixedly inserted into two axial end portions of the insertion hole (202 a).

3. The battery pack according to claim 2, wherein the battery supports (202) are sequentially arranged from left to right at intervals, each battery support (202) is provided with a plurality of battery insertion holes (202b) which extend left and right and are parallel to each other, a plurality of battery monomers (201) which are arranged in parallel to each other and are inserted into the battery insertion holes (202b) of the two adjacent battery supports (202) at the left and right ends are arranged between any two adjacent battery supports (202), the insertion holes (202a) are arranged at the side parts of the battery supports (202), and the hole axes of the insertion holes extend left and right.

4. The battery pack according to claim 3, wherein each of the battery holders (202) is formed with at least two of the insertion holes (202 a).

5. The battery pack according to claim 3, wherein the wire harness pressing block (3) comprises a pressing block body (302) and the plug pin (301) integrally connected with the pressing block body, a horizontally extending rib (303) is integrally formed at the side of the pressing block body (302), and the wire harness (4) is pressed between the rib (303) and the battery bracket (202).

6. The battery pack according to claim 5, wherein the insertion pin (301) is a cylindrical pin having a U-shaped outer profile, and one end of the insertion pin is integrally connected to the press block body (302), and the other end is an insertion end inserted into the insertion hole (202 a).

7. The battery pack according to claim 6, wherein the two plug pins (301) on the harness pressing block (3) are arranged symmetrically left to right.

8. The battery pack of claim 7, wherein the plug pin (301), the compact body (302), and the rib (303) are of unitary injection molded construction.

9. The battery pack according to claim 3, wherein each of the battery cells (201) between two adjacent battery holders (202) are arranged in parallel in a matrix to form a battery matrix, and the insertion holes (202a) are arranged at lateral positions of the battery matrix and at a middle position between two adjacent battery cells (201).

10. The battery pack according to claim 3, wherein the harness pressing pieces (3) are provided in at least two, and at least two of the harness pressing pieces (3) are respectively pressed on both radial sides of the harness (4).