CN218602613U

CN218602613U - Battery pack

Info

Publication number: CN218602613U
Application number: CN202222299604.3U
Authority: CN
Inventors: 田瑜; 李张龙
Original assignee: Autoflight Kunshan Co Ltd
Current assignee: Autoflight Kunshan Co Ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2023-03-10
Anticipated expiration: 2032-08-30

Abstract

The application relates to the technical field of power batteries and discloses a battery pack. The battery pack comprises a battery module, wherein the battery module comprises a front end and a tail end; and the module outer frame covers four sides of the battery module and forms a module inner cavity for accommodating the battery module together with the end plates at the front end and the tail end of the battery module. Complicated seal structure has not only reduced the weight of battery package through the end plate of sharing battery module to this application battery package, has also solved the not enough problem in space simultaneously.

Description

Battery pack

Technical Field

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

Background

The inside circular cavity that is of aircraft horn, intracavity space is less, and it has the louvre to open on the horn, whole cavity non-airtight space, therefore the battery package design can only be made into an inclosed rectangular shape form, because weight and space restriction, the battery package can not do extra structure again and be used for fixing the upper cover. The current design scheme of a mature battery pack is that the whole system reaches the waterproof grade IP67 by interlocking the lower bottom plate with the upper cover by splicing section aluminum around the lower bottom plate and using a sealing surface to match with a sealing strip, so that the whole weight of the battery pack can seriously exceed the standard, and the space in the cavity of the machine arm is narrow and small and cannot be met.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a battery package, and this application battery package gives up complicated seal structure through the end plate of sharing battery module, has not only reduced the weight of battery package, has also solved the not enough problem in space simultaneously.

In order to solve the above technical problem, the present application provides a battery pack, including: the battery module comprises a front end and a tail end;

the module outer frame covers four sides of the battery module and forms a module inner cavity for accommodating the battery module together with end plates at the front end and the tail end of the battery module.

Preferably, the side surfaces of the end plates at the front end and the tail end of the battery module respectively comprise a first plane and a second plane, the side plate part of the battery module is arranged on the first plane, and the side plate part of the module outer frame is arranged on the second plane.

Preferably, the first plane and the second plane are parallel to each other and spaced apart from each other.

Preferably, the side plate portion of the battery module is welded to the first plane of the end plate side surface, and the side plate portion of the module outer frame is welded to the second plane of the end plate side surface.

Preferably, the end plate is detachably coupled to the battery module.

Preferably, the side plates of the battery module extend beyond the main body of the battery module to form side plate extensions, and the side plate extensions are welded to the first plane of the side surfaces of the end plates.

Preferably, the module outer frame includes a cover and a bottom plate, the cover covers three sides of the battery module, and the cover is connected to the bottom plate.

Preferably, the battery module includes a plurality of electrically connected module units, and the module units are fixed to the base plate.

Preferably, the end plates are detachably coupled to the battery module.

Preferably, the module housing is made of a thermally conductive material.

Preferably, the module outer frame is square.

The battery pack of this embodiment abandons complicated seal structure through the end plate of sharing battery module, has not only reduced the weight of battery pack, has also solved the not enough problem of space simultaneously.

Drawings

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

fig. 2 is an exploded view of a battery pack according to an embodiment of the present invention;

fig. 3 is a schematic structural view of an end plate according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. The present application is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present application. It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict.

Embodiments of the present application will be described in detail below with reference to the accompanying drawings so that those skilled in the art to which the present application pertains can easily carry out the present application. The present application may be embodied in many different forms and is not limited to the embodiments described herein.

In order to clearly explain the present application, components that are not related to the description are omitted, and the same reference numerals are given to the same or similar components throughout the specification.

Throughout the specification, when a device is referred to as being "connected" to another device, this includes not only the case of being "directly connected" but also the case of being "indirectly connected" with another element interposed therebetween. In addition, when a device "includes" a certain constituent element, unless otherwise specified, it means that the other constituent element is not excluded, but may be included.

When a device is said to be "on" another device, this may be directly on the other device, but may also be accompanied by other devices in between. When a device is said to be "directly on" another device, there are no other devices in between.

Although the terms first, second, etc. may be used herein to describe various elements in some instances, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, the first interface and the second interface, etc. are described. Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, species, and/or groups thereof. The terms "or" and/or "as used herein are to be construed as inclusive or meaning any one or any combination. Thus, "a, B or C" or "a, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" include plural forms as long as the words do not expressly indicate a contrary meaning. The terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of other features, regions, integers, steps, operations, elements, components, and/or groups thereof.

The use of spatially relative terms such as "lower," "upper," and the like may be used to more readily describe one device's relationship to another device as illustrated in the figures. This term is intended to include not only the meaning indicated in the drawings, but also other meanings or operations of the device in use. For example, if the device in the figures is turned over, elements described as "below" other elements would then be oriented "above" the other elements. Thus, the exemplary terms "under" and "beneath" all include above and below. The device may be rotated 90 or other angles and the terminology representing relative space is to be interpreted accordingly.

Although not defined differently, including technical and scientific terms used herein, all terms have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Terms defined in commonly used dictionaries are to be additionally interpreted as having meanings consistent with those of related art documents and the contents of the present prompts, and must not be excessively interpreted as having ideal or very formulaic meanings unless defined.

Hereinafter, a first embodiment of the present application will be described with reference to the drawings, and as shown in fig. 1 and 2, a battery pack according to the embodiment of the present application includes a battery module 100 and a module housing 200, the battery module 100 may be a single module unit or a plurality of connected module units (a first module unit 101, a second module unit 102, a third module unit 103, and a fourth module unit 104, the connections including mechanical and electrical connections) as shown in fig. 2, and the battery module 100 includes a front end and a rear end. When the battery module 100 has a plurality of serially connected module units, the front end is the front end of the first module unit, and the tail end is the tail end of the last module unit. The module housing 200 covers the four sides of the battery module 100 and forms a module inner chamber for receiving the battery module 100 together with the end plates 300 at the front and rear ends of the battery module 100. The module housing 200 includes a housing 201 and a base plate 202, the housing 201 covering three sides of the battery module 100, the battery module 100 being fixed to the base plate 202, and the housing 201 being connectable to the base plate 202. It is understood that the module housing 200 may be formed by integrally molding the housing 201 and the base plate 202.

As shown in fig. 3, the side surfaces of the end plates 300 at the front and rear ends of the battery module 100 each include a first plane 301 and a second plane 302, and the first plane 301 and the second plane 302 are parallel to each other and spaced apart from each other in a stepped manner at a distance of 1mm to 2mm, preferably 1.5mm. The side plate portion of the battery module 100 is disposed on the first plane 301, and the side plate portion of the module frame 200 is disposed on the second plane 302. Specifically, the side plate portions of the battery module 100 protrude from the main body portion of the battery module 100, and the protruding portions are welded to the first plane 301 of the side surface of the end plate 300. The side plate portion of the module housing 200 is welded to the second plane 302 of the side surface of the end plate 300. The sealing of the entire battery pack is accomplished by the welding of the module outer frame 200 to the end plates 300 of the battery module 100.

In some embodiments, the end plates 300 are detachably coupled to the battery module 100. When the battery module includes a plurality of module units connected in series, the end plate 300 is detachably connected to the module units, and the module housing 200 is made of a heat conductive material. The module housing 200 is square.

This application embodiment adopts the sealed of whole battery package of end plate welded form of module frame and battery module to accomplish, makes the end plate side first plane and second plane formation echelonment structure, and the curb plate welding of first plane and battery module, second plane and module frame welding realize holistic sealed. Through the end plate of sharing battery module, give up complicated seal structure, not only reduced the weight of battery package, reduced the size simultaneously, solved the not enough problem in space.

The above embodiments are merely illustrative of the principles and utilities of the present application and are not intended to limit the application. Any person skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of the present application.

Claims

1. A battery pack, comprising:

the battery module comprises a front end and a tail end;

the module outer frame covers four sides of the battery module, a module inner cavity for accommodating the battery module is formed by the module outer frame and end plates at the front end and the tail end of the battery module, the side faces of the end plates at the front end and the tail end of the battery module respectively comprise a first plane and a second plane, the side plate part of the battery module is arranged on the first plane, and the side plate part of the module outer frame is arranged on the second plane.

2. The battery pack of claim 1, wherein the first plane is parallel to and spaced apart from the second plane.

3. The battery pack according to claim 2, wherein the side plate portions of the battery modules are welded to a first plane of the end plate side surfaces, and the side plate portions of the module outer frame are welded to a second plane of the end plate side surfaces.

4. The battery pack of claim 1, wherein the end plates are removably connected to the battery modules.

5. The battery pack according to claim 1, wherein the module housing includes a cover covering three sides of the battery module and a base plate, the cover being connected to the base plate.

6. The battery pack according to claim 5, wherein the battery module includes a plurality of electrically connected module units, the module units being fixed to the base plate.

7. The battery pack according to claim 1, wherein the module housing is made of a thermally conductive material.

8. The battery pack according to claim 1, wherein the cross-section of the module outer frame is square.