CN215644839U

CN215644839U - Battery module fixing mechanism

Info

Publication number: CN215644839U
Application number: CN202122037784.3U
Authority: CN
Inventors: 温金辉; 王建立; 王新锋
Original assignee: Baoli New Energy Technology Co ltd
Current assignee: Baoli New Energy Technology Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-01-25
Anticipated expiration: 2031-08-26

Abstract

The utility model discloses a battery module fixing mechanism which is used for fixing a battery module and comprises an upper shell and a lower shell which are both in a hollow cuboid shape, wherein the upper shell and the lower shell are mutually buckled and surrounded to form an accommodating cavity, and the accommodating cavity comprises a first partition and a second partition which are communicated; the first partition is used for accommodating the battery module; one vertex angle of the upper shell is recessed along the direction close to the second subarea to form a limiting concave part extending into the second subarea; the limiting concave part is used for being matched and fixed with an external convex structure. According to the battery module fixing mechanism provided by the utility model, one vertex angle of the upper shell is sunken into the second partition to form the limiting concave part, so that an irregular structure is formed and is used for positioning during installation, and meanwhile, the limiting concave part can be matched and fixed with an external convex structure, so that the whole structure is effectively limited, and the phenomena of transverse movement and the like are avoided.

Description

Battery module fixing mechanism

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of batteries, in particular to a battery module fixing mechanism.

[ background of the utility model ]

With the development of new energy technology, battery modules have been increasingly applied in the fields of electric vehicles and the like. The battery module is formed by connecting a plurality of single batteries in series and parallel to obtain preset voltage and capacity, and then fixing the battery module on a structure such as an electric automobile chassis through a fixing structure. Therefore, how to fix the battery pack composed of a plurality of single batteries becomes a key element. However, the structure of the current battery module is regular, the direction is difficult to be aligned accurately at one time during installation, and the whole structure cannot be limited.

Accordingly, it is desirable to provide a battery module fixing mechanism to overcome the above-mentioned drawbacks.

[ Utility model ] content

The utility model aims to provide a battery module fixing mechanism, which aims to solve the problem that the existing battery module fixing structure is difficult to accurately align the direction at one time, so that the whole structure is limited.

In order to achieve the above object, the present invention provides a battery module fixing mechanism for fixing a battery module, including an upper housing and a lower housing both having a hollow rectangular shape, wherein the upper housing and the lower housing are fastened to each other to form an accommodating cavity, and the accommodating cavity includes a first partition and a second partition which are communicated with each other; the first partition is used for accommodating the battery module; one vertex angle of the upper shell is recessed along the direction close to the second subarea to form a limiting concave part extending into the second subarea; the limiting concave part is used for being matched and fixed with an external convex structure.

In a preferred embodiment, two sides and the bottom of the upper casing and the lower casing are respectively provided with a fixing groove which is communicated with each other, and a fixing band is arranged in the fixing groove.

In a preferred embodiment, the edge of the side wall of the fixing groove, which is far away from the bottom, is provided with a limiting bump, and the limiting bump is used for pressing the fixing band in the fixing groove.

In a preferred embodiment, the side walls of the fixing groove, which are opposite to the two sides of the central axis of the fixing groove, are provided with the limiting protrusions; the corresponding pair of limiting lugs are arranged along the direction close to each other.

In a preferred embodiment, the cross section of the fixing groove is rectangular, and the cross section of the fixing band is identical to the cross section of the fixing groove.

In a preferred embodiment, the bottom of the fixing groove is adjacent to one side of the receiving cavity for being connected and fixed with the protection plate of the battery module.

In a preferred embodiment, an annular sealing ring is arranged between the upper shell and the lower shell.

In a preferred embodiment, the upper shell is provided with first fixing holes at four vertexes, and the lower shell is provided with second fixing holes corresponding to the first fixing holes one by one; the second fixing hole is used for being fixed with the first fixing hole through a bolt so as to cover the upper shell and the lower shell.

In a preferred embodiment, the annular sealing ring is disposed inside the first fixing hole and the second fixing hole on a side close to the accommodating cavity.

The battery module fixing mechanism divides the accommodating cavity into a first partition and a second partition, wherein the first partition is used for fixing the battery module; simultaneously, a top angle of the upper shell is sunken into the second partition to form a limiting concave part, so that an irregular structure is formed and is used for positioning during installation, meanwhile, the limiting concave part can be matched and fixed with an external convex structure, the whole structure is effectively limited, and the phenomena of transverse movement and the like are avoided.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a perspective view of a battery module fixing mechanism provided in the present invention;

fig. 2 is a perspective view of the battery module fixing mechanism shown in fig. 1 with the fixing belt hidden;

fig. 3 is a perspective view of the battery module fixing mechanism shown in fig. 2 with the upper housing removed.

Reference numbers in the figures: 100. a battery module fixing mechanism; 200. a battery module; 201. a protection plate; 10. an upper housing; 20. a lower housing; 21. a second fixing hole; 30. an accommodating cavity; 31. a first partition; 32. a second partition; 40. an annular seal ring; 50. a limiting concave part; 60. fixing grooves; 61. a limiting bump; 70. and (7) fixing the belt.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantageous effects of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

In an embodiment of the present invention, a battery module fixing mechanism 100 is provided for fixing a battery module 200, which improves the stability of fixing the whole fixing mechanism on an external device. The external device includes, but is not limited to, a chassis of an electric vehicle.

As shown in fig. 1 and 3, the battery module fixing mechanism 100 includes an upper case 10 and a lower case 20 each having a hollow rectangular parallelepiped shape.

The upper housing 10 and the lower housing 20 are substantially rectangular, and each has a receiving groove (not shown) with an opening close to each other, so that the upper housing 10 and the lower housing 20 are engaged with each other, and the receiving grooves are surrounded to form a receiving cavity 30. The receiving cavity 30 includes a first section 31 and a second section 32 that are in communication. The first partition 31 is used for accommodating the battery module 200; the second partition 32 is used for accommodating components of the battery module 200, such as an acquisition module, a battery management module, and the like.

Specifically, be equipped with ring packing 40 between last casing 10 and the casing 20 down, ring packing 40 can be silica gel etc. and have certain elastic material to promote the waterproof performance between last casing 10 and the casing 20 down. The upper housing 10 has four vertices provided with first fixing holes (not shown), and the lower housing 20 has second fixing holes 21 corresponding to the first fixing holes one by one. The second fixing holes 21 are fixed to the first fixing holes by bolts (not shown) to cover the upper case 10 and the lower case 20, thereby fixing the battery module 200. In order to prevent water vapor from entering the receiving cavity 30 through the first fixing hole and the second fixing hole 21, the annular sealing ring 40 is disposed inside the first fixing hole and the second fixing hole 21 near the receiving cavity 30.

In the embodiment of the present invention, one top corner of the upper case 10 is recessed in a direction close to the second partition 32 to form a limiting recess 50 extending into the second partition 32, wherein the limiting recess 50 has a rectangular parallelepiped shape. The retaining recess 50 is used for cooperating with an external protruding structure (e.g. a vehicle chassis).

Further, in one embodiment, the upper housing 10 and the lower housing 20 are formed with fixing grooves 60 at both sides and bottom thereof, and fixing bands 70 are disposed in the fixing grooves 60. The fixing groove 60 is disposed in the middle of the upper housing 10 and the lower housing 20, and a gap is formed between the fixing band 70 and the upper housing 10, so that a user can conveniently lift the whole mechanism. Specifically, the cross section of the fixing groove 60 is rectangular, the cross section of the fixing band 70 is consistent with that of the fixing groove 60, the unit length area of the fixing band 70 is increased, and the pressure on the hand when the user lifts the fixing band is reduced.

Further, the edge of the sidewall of the fixing groove 60, which is far away from the bottom, is provided with a limiting protrusion 61, and the limiting protrusion 61 is used for pressing the fixing strap 70 in the fixing groove 60. Wherein, the fixed slot 60 all is equipped with spacing lug 61 for the lateral wall of the axis both sides of fixed slot 60. The pair of corresponding limit protrusions 61 are disposed in a direction approaching each other, that is, the sides of the pair of limit protrusions 61 approaching each other are disposed opposite to each other, so as to prevent the fixing band 70 from falling off from the fixing slot 60.

Further, in one embodiment, the bottom of the fixing groove 60 is used to be coupled and fixed to the protection plate 201 of the battery module 200 at a side near the receiving cavity 30.

In summary, the battery module fixing mechanism 100 provided in the present invention divides the accommodating cavity 30 into the first partition 31 and the second partition 32, wherein the first partition 31 is used for fixing the battery module 200; meanwhile, one vertex angle of the upper shell 10 is sunken into the second partition 32 to form a limiting concave part 50, so that an irregular structure is formed and is used for positioning during installation, meanwhile, the limiting concave part 50 can be matched and fixed with an external convex structure, the whole structure is effectively limited, and the phenomena of transverse movement and the like are avoided.

The utility model is not limited solely to that described in the specification and embodiments, and additional advantages and modifications will readily occur to those skilled in the art, so that the utility model is not limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.

Claims

1. A battery module fixing mechanism is used for fixing a battery module and is characterized by comprising an upper shell and a lower shell which are both in a hollow cuboid shape, wherein the upper shell and the lower shell are mutually buckled and surrounded to form an accommodating cavity, and the accommodating cavity comprises a first partition and a second partition which are communicated; the first partition is used for accommodating the battery module; one vertex angle of the upper shell is recessed along the direction close to the second subarea to form a limiting concave part extending into the second subarea; the limiting concave part is used for being matched and fixed with an external convex structure.

2. The battery module fixing mechanism according to claim 1, wherein fixing grooves are formed at both sides and the bottom of the upper case and the lower case to communicate with each other, and fixing bands are disposed in the fixing grooves.

3. The battery module fixing mechanism according to claim 2, wherein the edge of the side wall of the fixing groove, which is away from the bottom, is provided with a limiting protrusion, and the limiting protrusion is used for pressing the fixing band into the fixing groove.

4. The battery module fixing mechanism according to claim 3, wherein the fixing groove is provided with the limiting protrusions on both side walls thereof with respect to a central axis of the fixing groove; the corresponding pair of limiting lugs are arranged along the direction close to each other.

5. The battery module fixing mechanism according to claim 2, wherein the fixing groove has a rectangular cross-section, and the fixing band has a cross-section corresponding to the cross-section of the fixing groove.

6. The battery module fixing mechanism according to claim 2, wherein the bottom of the fixing groove is formed at a side of the receiving cavity adjacent to the side of the receiving cavity for coupling and fixing with the protection plate of the battery module.

7. The battery module fixing mechanism according to claim 1, wherein an annular sealing ring is provided between the upper case and the lower case.

8. The battery module fixing mechanism according to claim 7, wherein the upper case is provided with first fixing holes at four vertices, and the lower case is provided with second fixing holes corresponding to the first fixing holes one to one; the second fixing hole is used for being fixed with the first fixing hole through a bolt so as to cover the upper shell and the lower shell.

9. The battery module fixing mechanism according to claim 8, wherein the ring-shaped sealing ring is disposed inside the first fixing hole and the second fixing hole on a side close to the receiving cavity.