CN212625835U

CN212625835U - Battery pack

Info

Publication number: CN212625835U
Application number: CN202021248765.4U
Authority: CN
Inventors: 王博文; 曲凡多; 任荣彬; 田旭光
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-02-26
Anticipated expiration: 2030-06-30

Abstract

The utility model discloses a battery pack, battery pack includes: a housing; the battery cell is installed in the shell, a top patch is arranged on the side wall of the battery cell, and a first clamping part is arranged on the top patch; the reinforcing plate, the reinforcing plate with the casing links to each other, just the reinforcing plate be equipped with first joint portion complex second joint portion. According to the utility model discloses a battery package makes electric core and casing joint link to each other through setting up the reinforcing plate, can effectively guarantee the position of electric core, also can guarantee in the use that electric core can not appear the displacement, and the connected mode of joint conveniently assembles, and this kind sets up simple structure, and is less to other institutional advancement of battery package, can save the manufacturing cost of battery package.

Description

Battery pack

Technical Field

The utility model belongs to the technical field of the battery is made, particularly, relate to a battery package.

Background

In the correlation technique, after the battery cell is put into the whole package in groups, the battery cell is fixed more difficultly, the assembly is complex, and the fixing effect is not good enough.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide a battery pack that can effectively ensure the position of an electrical core and can ensure that the electrical core does not displace during the use.

According to the utility model discloses battery package includes: a housing; the battery cell is installed in the shell, a top patch is arranged on the side wall of the battery cell, and a first clamping part is arranged on the top patch; the reinforcing plate, the reinforcing plate with the casing links to each other, just the reinforcing plate be equipped with first joint portion complex second joint portion.

According to the utility model discloses a battery package makes electric core and casing joint link to each other through setting up the reinforcing plate, can effectively guarantee the position of electric core, also can guarantee in the use that electric core can not appear the displacement, and the connected mode of joint conveniently assembles, and this kind sets up simple structure, and is less to other institutional advancement of battery package, can save the manufacturing cost of battery package.

According to the utility model discloses the battery package of some embodiments, electric core is a plurality of, and multiunit battery module is constituteed to a plurality of electric cores, every group battery module a plurality of electric core is arranged side by side along the first direction, the multiunit battery module is along the spaced apart setting of second direction, first direction with the second direction is perpendicular, the top paster is established the orientation of electric core the lateral wall of second direction.

According to the utility model discloses the battery package of some embodiments, the length of electric core along the second direction is greater than the length of electric core along first direction.

According to the utility model discloses the battery package of some embodiments, first joint portion is the draw-in groove, the draw-in groove is followed first direction extends, second joint portion is suitable for the edge first direction stretches into the draw-in groove, second joint portion is right second joint portion is spacing along the second direction.

According to the utility model discloses some embodiments's battery package, the reinforcing plate is followed the first direction extends, and singly the reinforcing plate with follow a plurality of that the first direction was arranged side by side the electricity core links to each other.

According to the utility model discloses some embodiments's battery package, the casing includes bottom plate and frame, the frame forms to go up the lower extreme and all opens and all closed frame construction all around, the bottom plate with the lower extreme of frame links to each other, electric core support in the bottom plate, just at least one lateral wall of electric core with the frame is spaced apart, electric core with the spaced apart lateral wall of frame is equipped with the top paster.

According to the utility model discloses some embodiments's battery package, the reinforcing plate include with the first reinforcing plate that the frame links to each other, the outer end of first reinforcing plate with the frame links to each other, second joint portion establishes the inner of first reinforcing plate.

According to the utility model discloses the battery package of some embodiments, the reinforcing plate include with the second reinforcing plate that the bottom plate links to each other, the second reinforcing plate is located two spaced apart between the electric core, the both ends of second reinforcing plate all are equipped with and are used for rather than both sides the second joint portion that the electric core links to each other.

According to the utility model discloses the battery package of some embodiments, the bottom plate is equipped with the convex longeron that makes progress, and two intervals set up electric core is located the both sides of longeron, the second reinforcing plate with the upper surface laminating of longeron is merged and is linked to each other.

According to the utility model discloses some embodiments's battery package, the reinforcing plate with the casing passes through threaded connection spare and links to each other.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic, disassembled view of a battery pack according to some embodiments of the present invention;

fig. 2 is a schematic structural diagram of a cell according to some embodiments of the present invention;

fig. 3 is a schematic diagram of a split of a cell according to some embodiments of the present invention;

fig. 4 is a schematic diagram of a portion of a battery pack according to some embodiments of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

fig. 6 is a partial enlarged view of fig. 4 at B.

Reference numerals:

a battery pack 100;

a housing 1; a frame 11; a base plate 12; longitudinal beams 121;

a battery module 2; a battery cell 21; a top patch 211; a first clip portion 20;

a reinforcing plate 3; the first reinforcing plate 31; a second reinforcing plate 32.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

A battery pack 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 6.

Unless otherwise specified, the first direction in the present application is the Y direction in the drawing, and the second direction is the X direction in the drawing.

According to the utility model discloses a battery package 100 includes casing 1, electric core 21 and reinforcing plate 3.

As shown in fig. 1, a plurality of battery cells 21 are mounted in a casing 1 to form a battery pack 100, specifically, the battery cells 21 are mounted in the casing 1, a top patch 211 is disposed on a side wall of each battery cell 21, and a first clamping portion 20 is disposed on each top patch 211; reinforcing plate 3 links to each other with casing 1, and reinforcing plate 3 is equipped with first joint portion 20 complex second joint portion.

From this, through the setting of reinforcing plate 3, make electric core 21 and 1 joint of casing link to each other, can effectively guarantee the position of electric core 21, also can guarantee in the use that electric core 21 can not appear the displacement, and the convenient assembly of connected mode of joint, and this kind sets up simple structure, and is less to other structural improvement of battery package 100, can save the manufacturing cost of battery package 100.

Some embodiments of a battery pack 100 according to the present invention are described below with reference to fig. 1-6.

As shown in fig. 4, the battery pack 100 may be composed of a plurality of battery modules 2, the battery module 2 is composed of a plurality of battery cells 21, specifically, the battery cells 21 are plural, the plurality of battery cells 21 constitute a plurality of sets of battery modules 2, the plurality of battery cells 21 of each set of battery module 2 are arranged side by side along a first direction, the plurality of sets of battery modules 2 are spaced apart along a second direction, the first direction is perpendicular to the second direction, and the top patch 211 is disposed on a side wall of the battery cell 21 facing the second direction.

A plurality of battery cells 21 arranged side by side along the first direction constitute one battery module 2, and a plurality of battery modules 2 are set up in casing 1 along second direction interval to constitute battery package 100, and top paster 211 sets up on the lateral wall of battery cell 21 towards another battery module 2.

In some embodiments, the length of the battery cell 21 in the second direction is greater than the length of the battery cell 21 in the first direction, that is, the first direction may be the width direction of the battery cell 21, and the second direction may be the length direction of the battery cell 21, so that the reinforcing plate 3 may be used to fix the battery cell 21 in the length direction, and solve the problem of fixing the battery cell 21 in the length direction, so that the installation of the battery cell 21 in the battery pack 100 is more stable.

In some embodiments, as shown in fig. 3, the first clamping portion 20 is a clamping groove, the clamping groove extends along a first direction, the second clamping portion is suitable for extending into the clamping groove along the first direction, the second clamping portion is limited along a second direction to the second clamping portion, and after the second clamping portion extends into the clamping groove, the second clamping portion cannot be separated from the clamping groove along the second direction, so that clamping cooperation between the first clamping portion 20 and the second clamping portion is realized, and the battery pack 100 is fixed in the second direction.

In some embodiments, as shown in fig. 1, the reinforcing plate 3 extends along the first direction, and the single reinforcing plate 3 is connected to a plurality of battery cells 21 arranged side by side along the first direction, that is, the length of the reinforcing plate 3 is long, and the single reinforcing plate 3 is connected to the first clamping portions 20 of the plurality of battery cells 21 of the same battery module 2, which facilitates assembly, and fixes the battery cells 21 and the casing 1, and also fixes the plurality of battery cells 21 of the same module relatively, thereby further enhancing the fixing effect on the battery cells 21.

In some embodiments, as shown in fig. 1, the casing 1 includes a bottom plate 12 and a frame 11, the frame 11 is formed as a frame structure with an open upper end and a closed lower end, the bottom plate 12 is connected to the lower end of the frame 11, the battery cell 21 is supported on the bottom plate 12, at least one side wall of the battery cell 21 is spaced apart from the frame 11, the side wall of the battery cell 21 spaced apart from the frame 11 is provided with a top patch 211, and the reinforcing plate 3 may be used for connecting the battery cell 21 to the frame 11.

In some embodiments, as shown in fig. 5, the reinforcing plate 3 includes a first reinforcing plate 313 connected to the frame 11, an outer end of the first reinforcing plate 313 is connected to the frame 11, and the second clamping portion is disposed at an inner end of the first reinforcing plate 313, where the outer end is in a direction away from the battery cell 21, and the inner end is in a direction close to the battery cell 21, so that the battery cell 21 is connected to the frame 11 of the casing 1 through the first reinforcing plate 313 to limit the battery module 2, thereby fixing the battery cell 21.

In some embodiments, as shown in fig. 6, the reinforcing plate 3 includes a second reinforcing plate 323 connected to the bottom plate 12, the second reinforcing plate 323 is located between two spaced-apart battery cells 21, that is, the second reinforcing plate 323 is connected between two battery modules 2 spaced apart along the second direction, both ends of the second reinforcing plate 323 are provided with second clamping portions for connecting to the battery cells 21 on both sides thereof, and thus, the second reinforcing plate 323 is connected to the battery cells 21 of the battery modules 2 on both sides thereof along the second direction, so that not only the battery cells 21 are connected to the casing 1, but also the plurality of battery modules 2 are limited along the second direction, so that the plurality of battery cells 21 are connected to the casing 1 in an integrated manner as to the plurality of battery modules 2, and the installation stability of the battery cells 21 in the battery pack 100 is further enhanced.

In some embodiments, as shown in fig. 1, the bottom plate 12 is provided with a longitudinal beam 121 protruding upwards, two spaced battery cells 21 are located at two sides of the longitudinal beam 121, and the second reinforcing plate 323 is attached and connected to the upper surface of the longitudinal beam 121. The second reinforcing plate 323 has high connection strength with the longitudinal beam 121, so that the connection effect of the battery cell 21 and the casing 1 can be enhanced.

In some embodiments, the reinforcing plate 3 is connected to the casing 1 through a threaded connection member (e.g., a bolt), and the reinforcing plate 3 is connected to the casing 1 in a threaded connection manner, so that the reinforcing plate 3 and the casing 1 are convenient to assemble and disassemble while the connection strength is ensured to be sufficiently high, and further, the maintenance, the replacement and the like of the reinforcing plate 3 and the battery cell 21 are convenient.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery pack, comprising:

a housing;

the battery cell is installed in the shell, a top patch is arranged on the side wall of the battery cell, and a first clamping part is arranged on the top patch;

the reinforcing plate, the reinforcing plate with the casing links to each other, just the reinforcing plate be equipped with first joint portion complex second joint portion.

2. The battery pack according to claim 1, wherein the battery core is a plurality of battery cores, a plurality of battery cores form a plurality of groups of battery modules, the plurality of battery cores of each group of battery modules are arranged side by side along a first direction, the plurality of groups of battery modules are arranged at intervals along a second direction, the first direction is perpendicular to the second direction, and the top patch is arranged on a side wall of the battery core facing the second direction.

3. The battery pack of claim 2, wherein the cells have a length in the second direction that is greater than a length of the cells in the first direction.

4. The battery pack according to claim 2, wherein the first engaging portion is a slot extending along the first direction, the second engaging portion is adapted to extend into the slot along the first direction, and the second engaging portion is configured to limit the second engaging portion along the second direction.

5. The battery pack of claim 4, wherein the reinforcing plate extends along the first direction, and a single reinforcing plate is connected to a plurality of the cells arranged side by side along the first direction.

6. The battery pack of claim 4, wherein the casing comprises a bottom plate and a frame, the frame is formed into a frame structure with an open upper end and a closed lower end, the bottom plate is connected with the lower end of the frame, the cell is supported on the bottom plate, at least one side wall of the cell is spaced apart from the frame, and the top patch is disposed on the side wall of the cell spaced apart from the frame.

7. The battery pack of claim 6, wherein the reinforcing plate comprises a first reinforcing plate connected to the frame, an outer end of the first reinforcing plate is connected to the frame, and the second clamping portion is disposed at an inner end of the first reinforcing plate.

8. The battery pack according to claim 6, wherein the reinforcing plate includes a second reinforcing plate connected to the bottom plate, the second reinforcing plate is located between two spaced battery cells, and both ends of the second reinforcing plate are provided with second clamping portions for connecting to the battery cells on both sides of the second reinforcing plate.

9. The battery pack according to claim 8, wherein the bottom plate is provided with a longitudinal beam protruding upwards, two spaced battery cells are located on two sides of the longitudinal beam, and the second reinforcing plate is attached to and connected with an upper surface of the longitudinal beam.

10. The battery pack according to any one of claims 1 to 9, wherein the reinforcing plate is connected to the case by a screw connection.