CN219419194U - Air-cooled soft-package lithium battery energy storage battery package - Google Patents

Abstract

The utility model discloses an air-cooled soft-package lithium battery energy storage battery pack, which comprises a box body and a module arranged in the box body, wherein a gap is formed between the module and the inner wall of the box body after the module is fixed in the box body so as to form a main air channel; an air outlet and a fan fixedly connected in the air outlet are arranged on the front end face of the box body, and an air inlet and a fireproof net fixedly connected in the air inlet are arranged on the rear end face of the box body; the module comprises a plurality of battery core units, a heat insulation layer is arranged between every two adjacent battery core units, and the length of the heat insulation layer is longer than that of each battery core unit; the battery cell unit comprises a plurality of monomers, and gaps exist between adjacent monomers to form an auxiliary air duct; the utility model uses the air cooling technology and is provided with the heat insulation layer between the adjacent battery core units, and has the advantages of higher strength, good heat conduction effect and effective and controllable heat diffusion.

Description

Air-cooled soft-package lithium battery energy storage battery package

Technical Field

The utility model relates to the field of energy storage batteries, in particular to an air-cooled soft-package lithium battery energy storage battery package.

Background

The soft-package lithium ion battery has the advantages of light weight, large energy storage, no pollution, long service life and the like, so that the soft-package lithium ion battery is favored by people for a long time, and the soft-package lithium ion battery is used for gradually replacing other traditional batteries in the fields of energy storage and power batteries.

Along with the continuous development of new energy industry, the requirements on the scheme of the soft package lithium battery are higher and higher, especially the requirements on heat dissipation and thermal runaway protection of the battery pack are met, the problems of heat dissipation and thermal runaway of the battery pack directly affect economic loss and personnel injury, and therefore the design of the module structure with higher strength, good heat conduction effect and effective and controllable heat diffusion is particularly important.

Disclosure of Invention

The utility model aims to provide an air-cooled soft-package lithium battery energy storage battery pack so as to provide a battery pack with high strength, good heat conduction effect and effective and controllable heat diffusion.

In order to achieve the above object, the technical scheme of the present utility model is as follows:

the air-cooled soft package lithium battery energy storage battery pack comprises a box body and a module arranged in the box body, wherein a gap is formed between the module and the inner wall of the box body after the module is fixed in the box body so as to form a main air channel;

an air outlet and a fan fixedly connected in the air outlet are arranged on the front end face of the box body, and an air inlet and a fireproof net fixedly connected in the air inlet are arranged on the rear end face of the box body;

the module comprises a plurality of battery core units, a heat insulation layer is arranged between every two adjacent battery core units, and the length of the heat insulation layer is longer than that of each battery core unit;

the battery cell unit comprises a plurality of monomers, and gaps exist between adjacent monomers to form an auxiliary air duct.

Further, the box includes drain pan, upper cover, front panel, form confined box after drain pan, upper cover, the front panel fixed connection, the inside bottom surface of drain pan is last to be laid the heat conduction structure and is glued, module fixed connection is on the inside bottom surface of drain pan, still fixedly connected with two clamp plates on the inside bottom surface of drain pan, module fixed connection is between two clamp plates, still fixed connection or integrated into one piece have the splice bar between the top of two clamp plates, the bottom surface of upper cover is last to be laid the heat conduction structure and is glued.

Further, a plurality of locating pins are fixedly connected to the inner bottom surface of the bottom shell, locating holes are formed in the bottom of the module, and the locating pins and the locating holes are matched with each other.

Further, the battery cell unit comprises two end plates and single bodies fixedly connected between the two end plates, and adjacent single bodies are fixedly connected through foam double faced adhesive tape.

Further, a sealing ring is arranged on the top surface of the shell wall of the bottom shell.

Compared with the prior art, the utility model has the advantages and positive effects that:

the module uses an air cooling technology, a gap is formed between the module and the inner wall of the box body after the module is fixed in the box body to form a main air duct, and the heat conduction structural adhesive is adopted for bonding and fixing, so that the overall temperature distribution is uniform, the temperature difference is small, and the cooling rate is high; and the structural strength is high, and the safety is good.

The heat insulation layer is arranged between the adjacent battery core units, so that the heat spreading in the box body can be effectively reduced and inhibited, the risk of occurrence of thermal runaway is reduced, and the influence of the thermal runaway on the adjacent battery core units and the adjacent battery core units can be reduced.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of a box of the present utility model;

FIG. 2 is a first exploded view of the present utility model;

FIG. 3 is a diagram of a second split architecture of the present utility model;

fig. 4 is an exploded view of the present cell unit.

In the figure: 1. a case; 11. an upper cover; 12. a bottom case; 13. a front panel; 131. an air outlet hole; 132. a fan; 14. a heat conducting structural adhesive; 15. an air inlet hole; 151. a fire-resistant net; 2. a module; 21. a cell unit; 211. a monomer; 212. foam double faced adhesive tape; 213. an end plate; 22. a thermal insulation layer; 23. a pressing plate; 231. and (5) connecting ribs.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in figures 1-4 of the drawings,

the air-cooled soft-package lithium battery energy storage battery pack comprises a box body 1 and a module 2 arranged in the box body 1, wherein a gap is formed between the module 2 and the inner wall of the box body 1 after the module 2 is fixed in the box body 1 so as to form a main air channel;

an air outlet hole 131 and a fan 132 fixedly connected in the air outlet hole 131 are arranged on the front panel 13 of the box body 1, the fan 132 is used for extracting hot air in the box body 1, and an air inlet hole 15 and a fireproof net 151 fixedly connected in the air inlet hole 15 are arranged on the rear end surface of the box body 1;

the module 2 comprises a plurality of electric core units 21, a heat insulation layer 22 is arranged between adjacent electric core units 21, the length of the heat insulation layer 22 is larger than that of the electric core units 21, when thermal runaway occurs, the heat insulation layer 22 can effectively reduce and inhibit heat spreading in the box body 1, reduce the risk of occurrence of the thermal runaway, and also reduce the influence of the thermal runaway on the adjacent single bodies 211 and the electric core units 21;

the cell unit 21 includes a plurality of units 211, and gaps exist between adjacent units 211 to form an auxiliary air duct.

In this embodiment, the single body 211 is a soft-package ternary lithium battery, the single body 211 is adhered and stacked together through the foam double faced adhesive tape 212, and the tab of the single body 211 is welded into a battery cell unit 21 through laser, so that the assembly is simple and the automation degree is high.

In this embodiment, the box includes drain pan 12, upper cover 11, front panel 13, form confined box 1 after drain pan 12, upper cover 11, front panel 13 fixed connection, thermal conductive structure glue 14 has been laid on the inside bottom surface of drain pan 12, module 2 fixed connection is on the inside bottom surface of drain pan 12, still fixedly connected with two clamp plates 23 on the inside bottom surface of drain pan 12, module 2 fixed connection is between two clamp plates 23, still fixed connection or integrated into one piece have connecting rib 231 between the top of two clamp plates 23 in order to increase intensity, thermal conductive structure glue 14 has been laid on the bottom surface of upper cover 11, and through thermal conductive structure glue 14's bonding, drain pan 12, module 2, upper cover 11 triplex form a whole, have both improved the holistic structural strength of module 1, have also increased the area of monomer 211 and outside heat exchange simultaneously, help the temperature reduction of module 1.

In this embodiment, the fan 132 is mounted on the front panel 13 at the front end of the module 1 through a metal plate fixing bracket, so that heat generated during operation of the unit 211 can be rapidly taken away, and air can be conveniently circulated inside the module 1.

In this embodiment, a sealing ring 16 is disposed on the top surface of the wall of the bottom shell 12, and the sealing ring 16 is formed by integrally foaming organic silicon, so as to provide a good sealing guarantee for the module 2.

In this embodiment, the fireproof net 151 is made of ceramic fiber, the fireproof grade is high, the flame cannot effectively penetrate, the fireproof net 15 is fixed on the bottom shell 12, when the monomer 211 is out of heat, the gas can be effectively dispersed, the flame can be prevented from leaking, and the purposes of satisfying the thermal runaway and heat dissipation are achieved.

In this embodiment, the battery cell unit 21 includes two end plates 213 and a single body 211 fixedly connected between the two end plates, the adjacent single bodies 211 are fixedly connected through a foam double faced adhesive tape 212, the foam double faced adhesive tape 212 itself has a thickness, and the adjacent single bodies 211 can form an auxiliary air channel to discharge hot air, so that the temperature of the single bodies 211 is reduced, and the heat dissipation efficiency is improved.

All other embodiments, modifications, equivalents, improvements, etc., which are apparent to those skilled in the art without the benefit of this disclosure, are intended to be included within the scope of this utility model.

Claims (5)

1. An air-cooled soft package lithium battery energy storage battery package which is characterized in that: the air conditioner comprises a box body and a module arranged in the box body, wherein a gap is formed between the module and the inner wall of the box body after the module is fixed in the box body so as to form a main air channel;

an air outlet and a fan fixedly connected in the air outlet are arranged on the front end face of the box body, and an air inlet and a fireproof net fixedly connected in the air inlet are arranged on the rear end face of the box body;

the module comprises a plurality of battery core units, a heat insulation layer is arranged between every two adjacent battery core units, and the length of the heat insulation layer is longer than that of each battery core unit;

the battery cell unit comprises a plurality of monomers, and gaps exist between adjacent monomers to form an auxiliary air duct.

2. The air-cooled soft pack lithium battery energy storage battery pack according to claim 1, wherein: the box comprises a bottom shell, an upper cover and a front panel, wherein the bottom shell, the upper cover and the front panel are fixedly connected to form a closed box body, heat conduction structural adhesive is paved on the inner bottom surface of the bottom shell, the module is fixedly connected to the inner bottom surface of the bottom shell, two pressing plates are fixedly connected to the inner bottom surface of the bottom shell, the module is fixedly connected between the two pressing plates, connecting ribs are fixedly connected or integrally formed between the top ends of the two pressing plates, and heat conduction structural adhesive is paved on the bottom surface of the upper cover.

3. The air-cooled soft pack lithium battery energy storage battery pack according to claim 2, wherein: and a plurality of positioning pins are fixedly connected to the inner bottom surface of the bottom shell, positioning holes are formed in the bottom of the module, and the positioning pins and the positioning holes are matched with each other.

4. The air-cooled soft pack lithium battery energy storage battery pack according to claim 2, wherein: the battery cell unit comprises two end plates and single bodies fixedly connected between the two end plates, and the adjacent single bodies are fixedly connected through a foam surface double faced adhesive tape.

5. The air-cooled soft pack lithium battery energy storage battery pack according to claim 2, wherein: and a sealing ring is arranged on the top surface of the shell wall of the bottom shell.