CN215299345U

CN215299345U - Temperature equalization structure of square battery cell pack

Info

Publication number: CN215299345U
Application number: CN202121066302.0U
Authority: CN
Inventors: 何东甫; 刘斌生; 杨庆宏; 邓通杭
Original assignee: Fujian Scud Power Technology Co Ltd
Current assignee: Fujian Scud Power Technology Co Ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-12-24
Anticipated expiration: 2031-05-18

Abstract

The utility model discloses a temperature equalization structure of a square battery cell pack, which comprises a containing space consisting of a bottom shell and a face shell and used for containing a battery cell module; the upper end of the battery cell module opposite to the face shell is sequentially provided with a collecting plate bracket, a collecting plate, a gasket and a PCM assembly, and the bottom of the battery cell module is provided with a heating sheet; an aluminum plate is arranged below the heating sheet; and heat-conducting glue is filled between the battery cell module and the heating sheet. The utility model discloses utilize the heating plate to heat the battery under low temperature environment, the heating region design of heating plate electricity core has the through-hole simultaneously, simultaneously in the group battery assembling process, there is the packing of carrying out heat conduction sealed glue bottom of drain pan assembly electricity core for heat accessible through-hole and drain pan inside heat conduction glue transfer to the radiating aluminum plate of below formation radiating effect in the operation process under the high temperature environment of inside electricity core; the temperature equilibrium state of the battery pack is improved, and meanwhile, the integral air-tight sealing and water-proof performance of the battery pack is guaranteed not to be damaged.

Description

Temperature equalization structure of square battery cell pack

Technical Field

The utility model relates to a lithium cell technical field especially involves a temperature equalization structure of square electricity core battery package.

Background

With the progress and development of society, the use and the requirement of power battery products are more diversified, and the use of square battery cores is more and more accepted. The temperature control problem of the square cell battery pack is more and more emphasized by people.

The existing square cell products are generally free of a heat balance system structure. The battery core performance is influenced by the temperature in the using process, and the service life of the battery and the user experience are greatly influenced. Or the failure of the waterproof and airtight properties of the entire battery pack due to the need for heat dissipation or heating, resulting in difficulty in design compatibility.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the weak point among the above-mentioned prior art and provide a can improve the temperature equalization structure of the square electricity core battery package that the battery is stable, the radiating effect improves under the high temperature environment under the low temperature environment.

The utility model discloses a realize through following mode:

a temperature equalization structure of a square battery cell pack comprises a containing space which is formed by a bottom shell and a face shell and is used for containing a battery cell module; the upper end that electric core module and face-piece are relative has set gradually collection board support, collection board, liner, PCM subassembly, its characterized in that: the bottom of the battery cell module is provided with a heating sheet; an aluminum plate is arranged below the heating sheet; and heat-conducting glue is filled between the battery cell module and the heating sheet.

Furthermore, a plurality of heat dissipation holes are formed in the bottom of the bottom shell; the aluminum plate is arranged on the inner bottom surface of the bottom shell and used for shielding the heat dissipation holes.

Further, the aluminum plate is connected with the bottom of the bottom shell through screws.

Further, the heating plate comprises a plurality of heating strips arranged in parallel; a plurality of heating areas are arranged on the heating strip at intervals; a plurality of through holes are arranged on the heating area at intervals; and the non-heating area on the heating sheet is a gum area.

Further, the gum area faces the aluminum plate.

Furthermore, a plug connected with the PCM component is arranged on the heating plate.

The beneficial effects of the utility model reside in that: the battery is heated by the heating plate in a low-temperature environment, meanwhile, a through hole is designed in a heating area of a cell of the heating plate, and meanwhile, in the assembly process of the battery pack, heat conducting sealant is filled at the bottom of a cell assembled by the bottom shell, so that heat in the running process of the internal cell in a high-temperature environment can be transferred to a lower heat dissipation aluminum plate through the through hole and the heat conducting sealant in the bottom shell to form a heat dissipation effect; the temperature equilibrium state of the battery pack is improved, and meanwhile, the integral air-tight sealing and water-proof performance of the battery pack is guaranteed not to be damaged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required 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 an exploded view of the structure of the present invention;

FIG. 2 is a sectional view of the structure of the present invention;

FIG. 3 is an enlarged view of part A of the present invention;

FIG. 4 is a schematic view of the structure of the heating plate of the present invention;

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in fig. 1 to 4, a temperature equalization structure of a square-cell battery pack includes a housing space formed by a bottom case 100 and a face case 101 and housing a cell module 102; the upper end of the battery cell module 102 opposite to the face shell 101 is sequentially provided with a collecting plate bracket 103, a collecting plate 104, a gasket 105 and a PCM assembly 106, and the bottom of the battery cell module 102 is provided with a heating plate 107; an aluminum plate 108 is arranged below the heating plate 107; and a heat-conducting glue 109 is filled between the cell module 102 and the heating plate 107.

In an embodiment of the present invention, a plurality of heat dissipation holes 110 are formed at the bottom of the bottom case 100; the aluminum plate 108 is disposed on the inner bottom surface of the bottom case 100 for shielding the heat dissipation hole 110.

In an embodiment of the present invention, the aluminum plate 108 is connected to the bottom of the bottom case 100 through a screw 111.

In an embodiment of the present invention, the heating sheet 107 includes a plurality of heating strips 112 arranged in parallel; a plurality of heating areas 113 are arranged on the heating strip 112 at intervals; a plurality of through holes 114 are arranged on the heating area 113 at intervals; the non-heated area on the heating plate 107 is the adhesive-backed area 115.

Further, the adhesive-backed area 115 faces the aluminum plate 108.

Further, the heating plate 107 is provided with a plug 116 connected to the PCM assembly 106.

The utility model discloses utilize heating plate 107 to heat the battery under low temperature environment, heating plate 107 electricity core heating region design has through-hole 114 simultaneously, simultaneously in the group battery assembly process, the bottom of drain pan 100 assembly electricity core has the packing that carries out heat conduction sealant, makes heat accessible through-hole and drain pan inside heat conduction glue transfer to the radiating aluminum plate of below formation radiating effect in the operation process under the inside electricity core high temperature environment; the temperature equilibrium state of the battery pack is improved, and meanwhile, the integral air-tight sealing and water-proof performance of the battery pack is guaranteed not to be damaged. The heating plate 107 gum area is opposite to the aluminum plate 108, so that the contact between the other side of the heating plate 107 and the battery cell module 102 is more sufficient, and the heating effect is more uniform.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A temperature equalization structure of a square battery cell pack comprises a containing space which is formed by a bottom shell (100) and a face shell (101) and is used for containing a battery cell module (102); the upper end that electric core module (102) and face-piece (101) are relative has set gradually collection board support (103), collection board (104), liner (105), PCM subassembly (106), its characterized in that: the bottom of the battery cell module (102) is provided with a heating plate (107); an aluminum plate (108) is arranged below the heating sheet (107); and heat-conducting glue (109) is filled between the cell module (102) and the heating plate (107).

2. The temperature equalization structure of a square-cell battery pack according to claim 1, characterized in that: the bottom of the bottom shell (100) is provided with a plurality of heat dissipation holes (110); the aluminum plate (108) is arranged on the inner bottom surface of the bottom shell (100) and used for shielding the heat dissipation holes (110).

3. The temperature equalization structure of a square-cell battery pack according to claim 1, characterized in that: the aluminum plate (108) is connected with the bottom of the bottom shell (100) through a screw (111).

4. The temperature equalization structure of a square-cell battery pack according to claim 1, characterized in that: the heating sheet (107) comprises a plurality of heating strips (112) arranged in parallel; a plurality of heating areas (113) are arranged on the heating strip (112) at intervals; a plurality of through holes (114) are arranged on the heating area (113) at intervals; the non-heating area on the heating plate (107) is a gum area (115).

5. The temperature equalization structure of a square-cell battery pack according to claim 4, characterized in that: the adhesive-backed area (115) faces the aluminum plate (108).

6. The temperature equalization structure of a square-cell battery pack according to claim 1, characterized in that: the heating plate (107) is provided with a plug (116) connected with the PCM component (106).