CN220856696U - Energy storage battery and forced heat dissipation system thereof - Google Patents

Energy storage battery and forced heat dissipation system thereof Download PDF

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Publication number
CN220856696U
CN220856696U CN202322642911.1U CN202322642911U CN220856696U CN 220856696 U CN220856696 U CN 220856696U CN 202322642911 U CN202322642911 U CN 202322642911U CN 220856696 U CN220856696 U CN 220856696U
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heat dissipation
battery
heat
air
forced
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CN202322642911.1U
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Chinese (zh)
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叶敬伟
郭廷福
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New United Group Co Ltd
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New United Group Co Ltd
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Abstract

The utility model relates to the technical field of energy storage batteries and discloses an energy storage battery and a forced heat dissipation system thereof. The heat dissipation air duct and the heat conducting plate can conduct heat generated by charge and discharge rapidly, heat accumulation in the battery module is avoided, the forced heat dissipation mode of the heat dissipation fan improves heat dissipation efficiency, and efficient heat dissipation of the energy storage battery is achieved.

Description

Energy storage battery and forced heat dissipation system thereof
Technical Field
The utility model relates to the technical field of energy storage batteries, in particular to a forced heat dissipation system. In addition, the utility model also relates to an energy storage battery comprising the forced heat dissipation system.
Background
The battery module generates a large amount of heat in the charging and discharging processes of the energy storage battery, and the heat dissipation mode of introducing external gas to perform free diffusion has poor heat dissipation effect and low heat dissipation efficiency, so that the work of the energy storage battery is affected, and the service life of the energy storage battery is reduced.
In summary, how to efficiently dissipate heat of the energy storage battery is a problem to be solved by those skilled in the art.
Disclosure of utility model
Therefore, the utility model aims to provide a forced heat dissipation system, wherein a heat dissipation air duct and a heat conduction plate can rapidly conduct heat generated by charge and discharge, so that heat accumulation in a battery module is avoided, and a forced heat dissipation mode of a heat dissipation fan improves heat dissipation efficiency and achieves efficient heat dissipation.
In addition, the utility model also provides an energy storage battery comprising the forced heat dissipation system.
In order to achieve the above object, the present utility model provides the following technical solutions:
A forced heat dissipation system is used for an energy storage battery and comprises a heat dissipation fan, an air inlet arranged on a battery box, an air outlet arranged on the battery box, a heat dissipation air channel arranged in the battery box and a heat conduction plate arranged between two adjacent battery cores of a battery module, wherein the heat dissipation fan is arranged at the air outlet so that cooling air is driven to be discharged by the heat dissipation fan after passing through the air inlet and the heat dissipation air channel.
Preferably, a heat dissipation gap is arranged between the heat conduction plates of two adjacent battery cells, and the heat dissipation gap is communicated with the heat dissipation air duct between two adjacent battery modules in the battery box.
Preferably, the heat conducting plate is a hollow heat conducting aluminum plate, an insulating layer is arranged on the outer surface of the hollow heat conducting aluminum plate, and a plurality of heat radiating cavities communicated with the heat radiating air channels are arranged in the hollow heat conducting aluminum plate.
Preferably, the air inlet and the air outlet are arranged on opposite side surfaces of the battery box.
Preferably, the air outlet and the air inlet are symmetrically arranged with respect to the symmetry plane of the battery box.
An energy storage battery comprises a battery box and at least one battery module, wherein a plurality of electric cores connected in series are arranged in the battery module, and the forced heat dissipation system described in any one of the above is arranged in the battery box.
When the battery module of the energy storage battery is charged and discharged, heat generated by the battery core is transferred to the heat-conducting plate, and the heat-dissipating fan can manufacture negative pressure, so that external air enters the battery box from the air inlet under the action of pressure difference to form cooling air, and the cooling air takes away the heat generated by the operation of the battery module when flowing through the heat-dissipating air channel and the heat-conducting plate, and is finally discharged by the heat-dissipating fan at the air outlet of the battery box.
The heat conducting plate can conduct out the heat that battery module charge and discharge produced fast, avoids heat accumulation in the battery module, and the forced heat dissipation mode of heat dissipation fan then has improved radiating efficiency higher, has avoided the battery module during operation high temperature, has realized energy storage battery's high-efficient heat dissipation, has improved energy storage battery's operational safety.
In addition, the utility model also provides an energy storage battery comprising the forced heat dissipation system.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a specific embodiment of a forced heat dissipation system according to the present utility model;
FIG. 2 is a schematic top view of a forced heat dissipation system;
FIG. 3 is a schematic diagram of a heat dissipation air duct;
fig. 4 is a schematic view illustrating the assembly of the heat conductive plate in the battery module;
FIG. 5 is a schematic front view of FIG. 4;
Fig. 6 is a schematic structural view of a hollow heat conducting aluminum plate;
FIG. 7 is a schematic front view of FIG. 6;
FIG. 8 is a schematic diagram of the distribution of air inlets on a battery box;
Fig. 9 is a schematic diagram showing the distribution of the heat dissipation fan on the battery box.
In fig. 1-9:
1 is a heat radiation fan, 2 is a heat radiation air duct, 3 is a heat conduction plate, 10 is a battery box, 101 is an air inlet, 102 is an air outlet, 20 is a battery module, and 201 is a battery cell.
Detailed Description
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.
The core of the utility model is to provide a forced heat dissipation system, the heat dissipation air duct and the heat conduction plate can rapidly conduct heat generated by charge and discharge, so that heat accumulation in a battery module is avoided, the forced heat dissipation mode of the heat dissipation fan improves the heat dissipation efficiency, and high-efficiency heat dissipation is realized.
The utility model also provides an energy storage battery comprising the forced heat dissipation system.
The forced heat radiation system provided by the utility model is used for an energy storage battery and comprises a heat radiation fan 1, an air inlet 101 arranged on a battery box 10, an air outlet 102 arranged on the battery box 10, a heat radiation air duct 2 arranged in the battery box 10 and a heat conduction plate 3 arranged between two adjacent battery cores 201 of a battery module 20, wherein the heat radiation fan 1 is arranged at the air outlet 102 of the battery box 10, so that cooling air is driven to be discharged by the heat radiation fan 1 after passing through the air inlet 101 and the heat radiation air duct 2 at the other side of the battery box 10.
Referring to fig. 1, in order to increase the length of the heat dissipation air duct 2 and extend the path of the cooling air in the battery box 10, an air inlet 101 and an air outlet 102 may be disposed on opposite sides of the battery box 10, and typically, the air inlet 101 and the air outlet 102 are disposed at two ends of the battery box 10 in the length direction.
Since the air outlet 102 needs to be provided with the heat dissipation fan 1, in order to save equipment cost, the number of the air inlets 101 is generally set to be multiple, and the number of the air outlets 102 is generally set to be one;
When the number of the air inlets 101 is greater than 1, in order to make the inflow of the cooling air in the battery case 10 relatively uniform, the air inlets 101 are generally disposed uniformly in the width direction of the battery case 10, and the air inlets 101 are disposed uniformly in the height direction of the battery case 10, as shown in fig. 8.
The specific number, shape and size of the air inlets 101 are determined according to the size of the battery box 10 of the energy storage battery in actual production, and the shape and size of the air outlets 102 are determined according to the shape and size of the heat dissipation fan 1.
The air outlet 102 of the battery box 10 is provided with a heat dissipation fan 1, the heat dissipation fan 1 is used for manufacturing a negative pressure environment, external air is driven to flow from the air inlet 101 of the battery box 10 to the air outlet 102 to form cooling air, and then heat generated by the nearby battery modules 20 is taken away when the cooling air flows through the heat dissipation air duct 2 and the heat conducting plate 3.
The type and power of the heat dissipation fan 1 are determined according to the type, number and other factors of the battery modules 20 of the energy storage battery in actual production, so as to ensure the heat dissipation effect of the forced heat dissipation system.
The heat dissipation air duct 2 is arranged in the battery box 10 and is a flow passage of cooling air in the battery box 10, and the heat dissipation air duct 2 can be a gap reserved between the battery modules 20 or a passage surrounded by heat conducting materials such as a heat conducting plate.
Referring to fig. 3, the heat dissipation air duct 2 is provided with rectangular heat dissipation holes on the left and right sides of the airflow direction, so that the heat of the battery modules 20 on both sides can be collected into the heat dissipation air duct 2 through the heat dissipation holes;
The front end face and the rear end face of the heat dissipation air duct 2 in the airflow flowing direction are respectively provided with an air inlet hole and an air outlet hole so as to facilitate the entry and the outflow of cooling air;
At least one end of the heat dissipation air duct 2 is provided with a mounting plate, and the mounting plate is connected with the end face of the battery box 10 through common connecting pieces such as fastening bolts or connecting pins so as to connect and fix the position of the heat dissipation air duct 2.
Referring to fig. 4 and 5, a heat conducting plate 3 is disposed between two adjacent battery cells 201 of the battery module 20, and the heat conducting plate 3 is used for conducting heat generated by charging and discharging the battery cells 201 into the heat dissipation air duct 2.
In order to ensure the electrical insulation performance of the battery module 20, the heat conductive plate 3 should be made of an insulating material or an insulating layer should be provided on the surface.
When the energy storage battery is charged and discharged, the heat dissipation fan 1 is controlled to rotate, negative pressure is manufactured by using the heat dissipation fan 1, external air enters the battery box 10 from the air inlet 101 under the action of pressure difference to form cooling air, and the cooling air takes away heat generated by the operation of the battery module 20 when flowing through the heat dissipation air duct 2 and the heat conducting plate 3 and is finally discharged by the heat dissipation fan 1 at the air outlet 102 of the battery box 10.
In this embodiment, the heat conducting plate 3 can rapidly conduct out the heat generated by charging and discharging the battery module 20, so as to avoid heat accumulation in the battery module 20, and the forced heat dissipation mode of the heat dissipation fan 1 improves the heat dissipation efficiency, so that the temperature of the battery module 20 is prevented from being too high during operation, the efficient heat dissipation of the energy storage battery is realized, the working safety of the energy storage battery is improved, and the service life of the energy storage battery is prolonged.
In order to make the heat dissipation inside the battery box 10 relatively uniform, it is preferable to provide the air outlet 102 and the air inlet 101 symmetrically arranged about the symmetry plane of the battery box 10, so as to avoid uneven heat dissipation inside the battery box 10 caused by offset of the air outlet and the air inlet.
On the basis of the above embodiment, in order to improve the heat dissipation efficiency, a heat dissipation gap may be disposed between the heat conduction plates 3 of two adjacent battery cells 201, and the heat dissipation gap is communicated with the heat dissipation air duct 2 between two adjacent battery modules 20 in the battery case 10.
That is, the cells 201 are provided with heat conductive plates 3 on the surfaces adjacent to other cells 201, and heat dissipation gaps are provided between the heat conductive plates 3 of two adjacent cells 201, so that cooling air can flow from the heat dissipation gaps inside the heat conductive plates 3, and heat generated by charging and discharging the cells 201 at the heat conductive plates 3 is taken away by air flow.
Of course, as shown in fig. 6 and 7, the heat conducting plate 3 may be a hollow heat conducting aluminum plate, an insulating layer is disposed on the outer surface of the hollow heat conducting aluminum plate, and a plurality of heat dissipation cavities communicated with the heat dissipation air duct 2 are disposed in the hollow heat conducting aluminum plate.
Therefore, the heat generated by the charge and discharge of the battery cell 201 can be transferred to the air in the heat dissipation cavity by the aluminum plates at the two sides of the hollow heat conduction aluminum plate, and the air in the heat dissipation cavity flows towards the heat dissipation fan 1 under the action of the heat dissipation fan 1 due to the communication of the heat dissipation cavity and the heat dissipation air channel 2, so that the heat in the heat dissipation cavity is taken away through the air flow.
In addition to the forced heat dissipation system, the present utility model further provides an energy storage battery including the forced heat dissipation system disclosed in the foregoing embodiment, where the energy storage battery includes a battery case 10 and at least one battery module 20, a plurality of battery cells 201 connected in series are disposed in the battery module 20, and the forced heat dissipation system disclosed in the foregoing embodiment is disposed in the battery case 10.
In a specific embodiment, two battery modules 20 are arranged in parallel in the battery box 10, each battery module 20 is formed by connecting 8 battery cores 201 in series, a soft copper bar is arranged between every two adjacent battery cores 201, a top insulating plate is arranged at the top of each battery module 20, and a heat dissipation air duct insulating plate is arranged between each battery module 20 and the heat dissipation air duct 2;
The front of the battery box 10 is provided with a positive and negative connecting electrode, a heat radiation fan 1 and a battery management unit, the battery management unit can control the rotating speed of the heat radiation fan 1, and the back array of the battery box 10 is provided with a plurality of air inlets 101.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The energy storage battery and the forced heat dissipation system thereof provided by the utility model are described in detail above. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (6)

1. A forced heat dissipation system is used for an energy storage battery and is characterized by comprising a heat dissipation fan (1), an air inlet (101) formed in a battery box (10), an air outlet (102) formed in the battery box (10), a heat dissipation air channel (2) formed in the battery box (10) and a heat conduction plate (3) arranged between two adjacent battery cores (201) of a battery module (20), wherein the heat dissipation fan (1) is arranged at the air outlet (102) so that cooling air passes through the air inlet (101) and the heat dissipation air channel (2) and is discharged by the heat dissipation fan (1) in a driving mode.
2. The forced heat dissipation system according to claim 1, wherein a heat dissipation gap is provided between the heat conduction plates (3) of two adjacent cells (201), and the heat dissipation gap is communicated with the heat dissipation air duct (2) between two adjacent battery modules (20) in the battery box (10).
3. The forced heat radiation system according to claim 1, wherein the heat conducting plate (3) is a hollow heat conducting aluminum plate, an insulating layer is arranged on the outer surface of the hollow heat conducting aluminum plate, and a plurality of heat radiation cavities communicated with the heat radiation air duct (2) are arranged in the hollow heat conducting aluminum plate.
4. A forced air cooling system according to any one of claims 1-3, characterized in that the air inlet (101) and the air outlet (102) are provided on opposite sides of the battery box (10).
5. The forced cooling system according to claim 4, characterized in that the air outlet (102) and the air inlet (101) are both arranged symmetrically with respect to the symmetry plane of the battery box (10).
6. An energy storage battery, characterized by comprising a battery box (10) and at least one battery module (20), wherein a plurality of battery cells (201) connected in series are arranged in the battery module (20), and the forced heat dissipation system of any one of claims 1-5 is arranged in the battery box (10).
CN202322642911.1U 2023-09-27 2023-09-27 Energy storage battery and forced heat dissipation system thereof Active CN220856696U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322642911.1U CN220856696U (en) 2023-09-27 2023-09-27 Energy storage battery and forced heat dissipation system thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322642911.1U CN220856696U (en) 2023-09-27 2023-09-27 Energy storage battery and forced heat dissipation system thereof

Publications (1)

Publication Number Publication Date
CN220856696U true CN220856696U (en) 2024-04-26

Family

ID=90778174

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322642911.1U Active CN220856696U (en) 2023-09-27 2023-09-27 Energy storage battery and forced heat dissipation system thereof

Country Status (1)

Country Link
CN (1) CN220856696U (en)

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