CN213212312U

CN213212312U - Thermal expansion material for battery module

Info

Publication number: CN213212312U
Application number: CN202021436524.2U
Authority: CN
Inventors: 刘国欣
Original assignee: Xiangtan Ruixin Electrical Material Co ltd
Current assignee: Xiangtan Ruixin Electrical Material Co ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-05-14
Anticipated expiration: 2030-07-20

Abstract

The utility model discloses a thermal energy material for battery module, including the module shell, the lower extreme surface of module shell is provided with the base, the upper end surface of module shell is provided with fixed lid, the inside of module shell is provided with anticreep protective layer, anticreep protective layer's one end surface is provided with a heat conduction tie coat. A thermal energy material for battery module, be equipped with heat conduction layer and thermal energy material layer, can be when the material uses, the graphite alkene layer through the material inside improves the heat conduction effect of thermal energy material, can further improve the coefficient of thermal expansion of material, be favorable to the use of thermal energy material, the anticreep protective layer of setting, at battery module during operation, the insulating effect that the inside epoxy resin layer of anticreep protective layer can improve the thermal energy material with insulating oily impregnated fiber paper, prevent the battery leakage, be favorable to people's use, bring better use prospect.

Description

Thermal expansion material for battery module

Technical Field

The utility model relates to a thermal energy material field, in particular to thermal energy material for battery module.

Background

The thermal expansion material for the battery module is a thermal expansion material used for producing the battery module, can be conveniently used by people, and has simple structure and convenient operation.

The existing thermal expansion material for the battery module has certain disadvantages in use, firstly, the material has poor heat conduction effect and certain inconvenience in use, and secondly, the material has poor insulation effect and brings certain adverse effects to the use process of people.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a thermal expansion material for battery module, which can effectively solve the problems in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a thermal expansion material for a battery module comprises a module shell, wherein a base is arranged on the outer surface of the lower end of the module shell, a fixed cover is arranged on the outer surface of the upper end of the module shell, an anti-creeping protective layer is arranged inside the module shell, a first thermal conduction bonding layer is arranged on the outer surface of one end of the anti-creeping protective layer, a thermal expansion material layer is arranged on the outer surface of one end of the first thermal conduction bonding layer, a second thermal conduction bonding layer is arranged on the outer surface of one end of the thermal expansion material layer, a thermal conduction layer is arranged on the outer surface of one end of the second thermal conduction bonding layer, a first thermal conduction silicone layer is arranged inside the thermal conduction layer, a graphene layer is arranged on the outer surface of one end of the first thermal conduction silicone layer, a second thermal conduction silicone layer is arranged, the one end surface of an epoxy resin layer is provided with insulating oil impregnated fiber paper, and the one end surface of insulating oil impregnated fiber paper is provided with No. two epoxy resin layers.

The heat conducting layer is mainly beneficial to improving the heat conducting effect of the material.

The anti-creeping protective layer is mainly beneficial to improving the insulating effect of the material.

Preferably, the outer surface of the upper end of the first heat conduction silicone grease layer is fixedly connected with the outer surface of the lower end of the graphene layer, and the outer surface of the upper end of the graphene layer is fixedly connected with the outer surface of the lower end of the second heat conduction silicone grease layer.

Preferably, the outer surface of the upper end of the first epoxy resin layer is fixedly connected with the outer surface of the lower end of the insulating oil-impregnated fiber paper, and the outer surface of the upper end of the insulating oil-impregnated fiber paper is fixedly connected with the outer surface of the lower end of the second epoxy resin layer.

Preferably, the outer surface of the lower end of the heat conduction layer is fixedly connected with the outer surface of the upper end of the second heat conduction bonding layer through the first heat conduction silicone layer, and the graphene layer has the characteristics of good strength, flexibility, electric conduction, heat conduction and the like, is a material with the highest heat conduction coefficient so far, and has very good heat conduction performance.

Preferably, the outer surface of the upper end of the anti-creeping protection layer is fixedly connected with the outer surface of the lower end of the first heat conduction bonding layer through a second epoxy resin layer, and the epoxy resin is an excellent insulating material with high dielectric property, surface creepage resistance and electric arc resistance.

Preferably, the outer surface of the upper end of the base is fixedly connected with the outer surface of the lower end of the module shell, and the outer surface of the upper end of the module shell is movably connected with the outer surface of the lower end of the fixed cover.

Compared with the prior art, the utility model discloses following beneficial effect has: this a thermal energy material for battery module, the heat conduction layer through setting up, when the material uses, the inside graphite alkene layer of accessible material improves the heat conduction effect of thermal energy material, can further improve the coefficient of thermal expansion of material, be favorable to the use of thermal energy material, through the anticreep protective layer that sets up, at battery module during operation, the insulating effect that the inside epoxy resin layer of anticreep protective layer can improve thermal energy material with insulating oily impregnated fiber paper, prevent battery leakage, be favorable to people's use, whole thermal energy material simple structure for battery module, high durability and convenient operation, the effect of use is better for traditional mode.

Drawings

Fig. 1 is a schematic view of the overall structure of a thermal expansion material for a battery module according to the present invention.

Fig. 2 is a schematic diagram showing a thermal expansion material for a battery module according to the present invention, which is a schematic diagram showing a module case 1 of fig. 1.

Fig. 3 is an enlarged view of the thermally conductive layer 7 in fig. 2 of a thermally expandable material for a battery module according to the present invention.

Fig. 4 is an enlarged view of the leakage preventing protective layer 5 of fig. 2, which is a thermal expansion material for a battery module according to the present invention.

In the figure: 1. a module housing; 2. a base; 3. a fixed cover; 4. a first thermally conductive adhesive layer; 5. an anti-creeping protective layer; 6. a second heat-conducting bonding layer; 7. a thermally conductive layer; 8. a layer of thermally expansive material; 701. a first thermally conductive silicone layer; 702. a second thermally conductive silicone layer; 703. a graphene layer; 501. a first epoxy layer; 502. a second epoxy layer; 503. insulating oil impregnates the fiber paper.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

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," "disposed," "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.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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.

As shown in fig. 1 to 4, a thermal expansion material for a battery module comprises a module case 1, a base 2 is disposed on the outer surface of the lower end of the module case 1, a fixing cover 3 is disposed on the outer surface of the upper end of the module case 1, an anti-creeping protection layer 5 is disposed inside the module case 1, a first thermal conductive adhesive layer 4 is disposed on the outer surface of one end of the anti-creeping protection layer 5, a thermal expansion material layer 8 is disposed on the outer surface of one end of the first thermal conductive adhesive layer 4, a second thermal conductive adhesive layer 6 is disposed on the outer surface of one end of the thermal expansion material layer 8, a thermal conductive layer 7 is disposed on the outer surface of one end of the second thermal conductive adhesive layer 6, a first thermal conductive silicone layer 701 is disposed inside the thermal conductive layer 7, a graphene layer 703 is disposed on the outer surface of one end of the first thermal conductive silicone layer 701, an insulating oil-impregnated fiber paper 503 is arranged on the outer surface of one end of the first epoxy resin layer 501, and a second epoxy resin layer 502 is arranged on the outer surface of one end of the insulating oil-impregnated fiber paper 503.

Further, the upper end outer surface of the first heat conduction silicone grease layer 701 is fixedly connected with the lower end outer surface of the graphene layer 703, and the upper end outer surface of the graphene layer 703 is fixedly connected with the lower end outer surface of the second heat conduction silicone grease layer 702, so that the structure stability of the heat conduction layer 7 is facilitated.

Further, the upper end surface of the first epoxy resin layer 501 is fixedly connected with the lower end surface of the insulating oil-impregnated fiber paper 503, and the upper end surface of the insulating oil-impregnated fiber paper 503 is fixedly connected with the lower end surface of the second epoxy resin layer 502, so that the structure stability of the anti-creeping protection layer 5 is facilitated.

Furthermore, the outer surface of the lower end of the heat conduction layer 7 is fixedly connected with the outer surface of the upper end of the second heat conduction bonding layer 6 through the first heat conduction silicone layer 701, and the graphene layer 703 has the characteristics of good strength, flexibility, electric conduction, heat conduction and the like, is a material with the highest heat conduction coefficient so far, has very good heat conduction performance, and is beneficial to stable connection of the heat conduction layer 7.

Furthermore, the outer surface of the upper end of the anti-creeping protection layer 5 is fixedly connected with the outer surface of the lower end of the first heat conduction bonding layer 4 through a second epoxy resin layer 502, and epoxy resin is a good insulating material with high dielectric property, surface creepage resistance and electric arc resistance, so that the anti-creeping protection layer 5 is connected stably.

Furthermore, the outer surface of the upper end of the base 2 is fixedly connected with the outer surface of the lower end of the module shell 1, and the outer surface of the upper end of the module shell 1 is movably connected with the outer surface of the lower end of the fixed cover 3, so that the whole structure of the thermal expansion material is stable.

It should be noted that, the utility model relates to a thermal energy material for battery module, before using, the user opens fixed lid 3 and puts into module shell 1 with the battery inside, reclose fixed lid 3, just can accomplish the installation of whole module shell 1, the heat conduction layer 7 of its setting, when the material uses, the inside graphite alkene layer 703 of accessible material improves the heat conduction effect of thermal energy material, can further improve the coefficient of thermal expansion of material, be favorable to thermal energy material's use, the anticreep protective layer 5 of its setting, at battery module during operation, the insulating effect that the inside epoxy resin layer of anticreep protective layer 5 and insulating oil stain fibre 503 paper can improve the thermal energy material, prevent the battery electric leakage, be favorable to people's use, and is relatively practical.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A thermally expandable material for battery modules, comprising a module case (1), characterized in that: the module comprises a module shell (1), a base (2) is arranged on the outer surface of the lower end of the module shell (1), a fixing cover (3) is arranged on the outer surface of the upper end of the module shell (1), an anti-creeping protective layer (5) is arranged inside the module shell (1), a first heat conduction bonding layer (4) is arranged on the outer surface of one end of the anti-creeping protective layer (5), a heat expansion material layer (8) is arranged on the outer surface of one end of the first heat conduction bonding layer (4), a second heat conduction bonding layer (6) is arranged on the outer surface of one end of the heat expansion material layer (8), a heat conduction layer (7) is arranged on the outer surface of one end of the second heat conduction bonding layer (6), a first heat conduction silicone grease layer (701) is arranged inside the heat conduction layer (7), a graphene layer (703) is arranged on the outer surface of one end of the first, the inside of anticreep protective layer (5) is provided with epoxy layer (501) No. one, the one end surface of epoxy layer (501) is provided with insulating oily impregnated fiber paper (503), the one end surface of insulating oily impregnated fiber paper (503) is provided with epoxy layer (502) No. two.

2. The thermally expandable material for battery modules according to claim 1, wherein: the outer surface of the upper end of the first heat-conducting silicone grease layer (701) is fixedly connected with the outer surface of the lower end of the graphene layer (703), and the outer surface of the upper end of the graphene layer (703) is fixedly connected with the outer surface of the lower end of the second heat-conducting silicone grease layer (702).

3. The thermally expandable material for battery modules according to claim 1, wherein: the outer surface of the upper end of the first epoxy resin layer (501) is fixedly connected with the outer surface of the lower end of the insulating oil-impregnated fiber paper (503), and the outer surface of the upper end of the insulating oil-impregnated fiber paper (503) is fixedly connected with the outer surface of the lower end of the second epoxy resin layer (502).

4. The thermally expandable material for battery modules according to claim 1, wherein: the outer surface of the lower end of the heat conduction layer (7) is fixedly connected with the outer surface of the upper end of the second heat conduction bonding layer (6) through the first heat conduction silicone layer (701), and the graphene layer (703) has the characteristics of good strength, flexibility, electric conduction, heat conduction and the like, is a material with the highest heat conduction coefficient so far, and has very good heat conduction performance.

5. The thermally expandable material for battery modules according to claim 1, wherein: the outer surface of the upper end of the anti-creeping protective layer (5) is fixedly connected with the outer surface of the lower end of the first heat-conducting bonding layer (4) through a second epoxy resin layer (502), and the epoxy resin is a good insulating material with high dielectric property, surface creepage resistance and electric arc resistance.

6. The thermally expandable material for battery modules according to claim 1, wherein: the outer surface of the upper end of the base (2) is fixedly connected with the outer surface of the lower end of the module shell (1), and the outer surface of the upper end of the module shell (1) is movably connected with the outer surface of the lower end of the fixed cover (3).