CN221653036U - Cabinet energy storage system - Google Patents

Abstract

The utility model discloses a cabinet-type energy storage system, wherein the cabinet-type energy storage system includes a cabinet, a plurality of battery boxes, and a temperature regulating device. The cabinet has a battery cavity, a first air duct and a second air duct, and the first air duct and the second air duct are both connected to the battery cavity; the plurality of battery boxes are arranged in the battery cavity, and each battery box includes a shell, a battery module and a heat dissipation fan. The shell is provided with an installation cavity, a first vent and a second vent, the first vent is connected to the first air duct and the installation cavity, the second vent is connected to the installation cavity and the second air duct, the battery module is arranged in the installation cavity, and the heat dissipation fan is arranged at the second vent, one of the first vent and the second vent is an air inlet, and the other is an air outlet; the temperature regulating device is installed in the cabinet, and is provided with an air supply component, and the air supply component is configured to drive the airflow to circulate in the first air duct, the battery cavity and the second air duct. The cabinet-type energy storage system of the technical solution of the utility model can improve the heat dissipation effect of the battery box.

Description

Cabinet energy storage system

Technical Field

The utility model relates to the technical field of energy storage systems, in particular to a cabinet type energy storage system.

Background Art

Cabinet-type energy storage systems are generally equipped with a heat dissipation system. The current heat dissipation systems include liquid cooling or air cooling. Liquid cooling requires the installation of liquid cooling management in the battery box, which results in a complex battery box structure, heavy weight, and inconvenient handling and maintenance. When an air cooling system is used, the battery boxes are usually spaced apart to form a heat dissipation duct. The heat dissipation fan drives the external airflow into the heat dissipation duct to exchange heat with the battery box shell and then discharge it, thereby achieving heat dissipation of the battery box. However, this solution can only dissipate heat on the outside of the battery box, with low heat dissipation efficiency and poor overall heat dissipation effect.

Utility Model Content

The main purpose of the utility model is to provide a cabinet-type energy storage system, aiming to improve the heat dissipation effect of the battery box.

To achieve the above-mentioned purpose, the cabinet type energy storage system proposed in the utility model comprises:

A cabinet body, comprising a battery cavity, a first air duct and a second air duct, wherein the first air duct and the second air duct are both connected to the battery cavity;

A plurality of battery boxes are arranged in the battery cavity, each of the battery boxes comprises a shell, a battery module and a heat dissipation fan, the shell is provided with a mounting cavity, a first vent and a second vent, the battery module is arranged in the mounting cavity, the first vent is connected with the first air duct and the mounting cavity, the second vent is connected with the mounting cavity and the second air duct, the heat dissipation fan is arranged at the second vent, one of the first vent and the second vent is an air inlet, and the other is an air outlet; and

A temperature regulating device is installed on the cabinet, and the temperature regulating device is provided with an air supply component, and the air supply component is configured to drive the air flow to circulate in the first air duct, the battery cavity and the second air duct.

Optionally, the battery module includes a plurality of battery cells arranged in sequence, and a heat dissipation duct is formed between any two adjacent battery cells.

Optionally, the battery cavity is provided with at least two columns of battery mounting positions, each column of the battery mounting positions is provided with a plurality of the battery boxes arranged up and down, a ventilation gap is formed between the battery boxes of any two adjacent columns of the battery mounting positions, the ventilation gap is connected between the first air duct and the first vent, and the cabinet-type energy storage system also includes a baffle, the baffle cover is arranged on a side of the ventilation gap away from the first air duct, and is separated from the ventilation gap and the second air duct.

Optionally, the battery cavity is provided with at least three rows of battery installation positions, and the cabinet-type energy storage system includes a plurality of baffles, and each baffle is correspondingly covered on a side of the ventilation gap away from the first air duct.

Optionally, the shell has two opposite first side walls and a second side wall connected between the two first side walls, each of the first side walls is provided with the first vent, and the second side wall is provided with the second vent, and the multiple battery cells of the battery module are arranged in sequence along a direction perpendicular to the second side wall, and the first side wall is provided with a first vent at the position corresponding to each of the heat dissipation ducts.

Optionally, the battery box includes at least two battery modules, at least two battery modules are disposed in the installation cavity, and are arranged in sequence along the arrangement direction of the two first side walls, and a first heat exchange air duct is formed between any two adjacent battery modules, the first heat exchange air duct connects the second ventilation port and the heat dissipation air duct, and the distance between the first side wall and the corresponding battery module is smaller than the width of the first heat exchange air duct.

Optionally, a heat conducting member is provided between any two adjacent battery units, and the heat conducting member abuts between the two battery units to form the heat dissipation duct.

Optionally, the heat conducting member includes two opposite first heat conducting plates and a plurality of second heat conducting plates connected between the two first heat conducting plates, wherein one of the first heat conducting plates abuts against one of the battery cells, and another of the first heat conducting plates abuts against another of the battery cells, and the heat dissipation duct is formed between the two first heat conducting plates and between any two adjacent second heat conducting plates.

Optionally, the temperature regulating device is provided with a second heat exchange air duct and a heat exchange device located in the second heat exchange air duct, the air outlet of the second heat exchange air duct is connected to the first air duct, and the return air outlet of the second heat exchange air duct is connected to the second air duct, so that the second heat exchange air duct, the first air duct, the battery cavity and the second air duct form a circulating air duct for air circulation in the cabinet.

Optionally, the air outlet of the second heat exchange air duct is located at the upper position of the cabinet, the battery cavity has a first side and a second side relative to each other, the first air duct includes a top air duct and a vertical air duct connected to the top air duct, the top air duct is connected to the air outlet of the second air duct, the vertical air duct is located on the first side of the battery cavity and is connected to the battery cavity, and the second side of the battery cavity is connected to the second air duct.

The cabinet-type energy storage system of the technical solution of the utility model is provided with a battery cavity, a first air duct and a second air duct in the cabinet, so that the first air duct and the second air duct are connected to the battery cavity, and multiple battery boxes are installed in the battery cavity, and each battery box is provided with a shell, a battery module and a heat dissipation fan, the shell is provided with an installation cavity, a first vent and a second vent, and the first vent is connected to the first air duct and the installation cavity, the second vent is connected to the second air duct and the installation cavity, the battery module is installed in the installation cavity, the heat dissipation fan is installed at the second vent, the temperature regulating device is installed in the cabinet, the temperature regulating device is provided with an air supply component, and the air supply component drives the airflow to circulate in the first air duct, the battery cavity and the second air duct. That is, during the use of the cabinet-type energy storage system, the air supply fan drives the airflow to circulate in the first air duct, the battery cavity and the second air duct. When the airflow flows to the battery cavity, the heat dissipation fan on the battery box can drive the airflow in the battery cavity to fully flow into the installation cavity, and exchange heat with the battery module through the flowing airflow, thereby improving the heat exchange effect between the airflow and the battery module. The heat dissipation fan can also drive the airflow in the battery cavity to flow quickly into the installation cavity, which can increase the airflow velocity, that is, improve the heat dissipation efficiency of the battery module, and then improve the heat dissipation effect of the battery box.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

FIG1 is a schematic structural diagram of an embodiment of a cabinet-type energy storage system of the utility model;

FIG2 is a schematic diagram of a partial structure of the cabinet-type energy storage system in FIG1 ;

FIG3 is a cross-sectional view of the cabinet-type energy storage system in FIG1 ;

FIG4 is an enlarged view of point A in FIG3 ;

FIG5 is another cross-sectional view of the cabinet-type energy storage system in FIG1 ;

FIG6 is an enlarged view of point B in FIG5 ;

FIG7 is a schematic diagram of the structure of the battery box in FIG1;

FIG8 is a partial structural schematic diagram of the battery box in FIG7;

FIG. 9 is a schematic structural diagram of the heat conducting member in FIG. 3 .

Description of Figure Numbers:

10. Cabinet; 11. Battery cavity; 12. First air duct; 121. Top air duct; 122. Vertical air duct; 13. Second air duct; 14. Ventilation gap; 20. Battery box; 21. Shell; 211. Mounting cavity; 22. First side wall; 221. First vent; 23. Second side wall; 231. Second vent; 24. Battery module; 241. Battery unit; 25. First heat exchange air duct; 30. Temperature adjustment device; 31. Second heat exchange air duct; 40. Heat conducting member; 41. First heat conducting plate; 42. Second heat conducting plate; 43. Heat dissipation air duct; 50. Baffle

The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and/or" appearing in the full text is to include three parallel solutions. Taking "A and/or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

The utility model provides a cabinet type energy storage system.

In the embodiment of the utility model, as shown in FIG. 1 to FIG. 9 , the cabinet-type energy storage system includes a cabinet body 10 , a plurality of battery boxes 20 and a temperature adjustment device 30 .

The cabinet 10 has a battery cavity 11, a first air duct 12 and a second air duct 13, the first air duct 12 and the second air duct 13 are both connected to the battery cavity 11; multiple battery boxes 20 are arranged in the battery cavity 11, each battery box 20 includes a shell 21, a battery module 24 and a heat dissipation fan, the shell 21 is provided with an installation cavity 211, a first vent 221 and a second vent 231, the battery module 24 is arranged in the installation cavity 211, the first vent 221 is connected to the first air duct 12 and the installation cavity 211, the second vent 231 is connected to the installation cavity 211 and the second air duct 13, the heat dissipation fan is arranged at the second vent 231, one of the first vent 221 and the second vent 231 is an air inlet, and the other is an air outlet; the temperature regulating device 30 is installed in the cabinet 10, and the temperature regulating device 30 is provided with an air supply component, and the air supply component is configured to drive the airflow to circulate in the first air duct 12, the battery cavity 11 and the second air duct 13.

Specifically, the temperature regulating device 30 is used to regulate the temperature of the battery cavity 11, that is, the temperature regulating device 30 can be used to reduce (for example, when the temperature in the battery cavity 11 is too high) or increase (for example, when the temperature in the battery cavity 11 is too low) the temperature of the battery cavity 11. The temperature regulating device 30 may only have the function of reducing the temperature of the battery cavity 11, or may have the function of reducing the temperature of the battery cavity 11 and also have the heating function, so that it can be used selectively according to needs, that is, the temperature regulating device 30 at least has the function of reducing the temperature (that is, the cooling function).

In this embodiment, a mounting frame is provided in the cabinet 10, and the mounting frame forms a space for placing the battery box 20 as a battery cavity 11, the first vent 221 is an air outlet, and the second air outlet is an air inlet. The air supply component drives the airflow from the first air duct 12 to flow to the battery cavity 11, and the heat dissipation fan drives the airflow flowing to the battery cavity 11 to quickly flow into the mounting cavity 211 through the first vent 221, so as to exchange heat with the battery module 24 through the flowing airflow, thereby taking away the heat of the battery module 24, and the air dissipation fan discharges the airflow after the heat exchange from the mounting cavity 211 to the second air duct 13 through the second vent 231, thereby realizing heat dissipation of the battery module 24.

Different from the above-mentioned arrangement of the air inlet and the air outlet, in other embodiments, the first vent 221 is the air outlet, the second vent 231 is the air inlet, the air supply component drives the airflow from the second air duct 13 to the battery cavity 11, and the heat dissipation fan drives the airflow flowing to the battery cavity 11 to quickly flow into the installation cavity 211 through the second vent 231, so as to exchange heat with the battery module 24 through the flowing airflow, thereby taking away the heat of the battery module 24, and the air dissipation fan discharges the airflow after the heat exchange from the installation cavity 211 to the first air duct 12 through the first vent 221, thereby realizing heat dissipation of the battery module 24.

The cabinet-type energy storage system of the technical solution of the utility model is provided with a battery cavity 11, a first air duct 12 and a second air duct 13 in the cabinet 10, so that the first air duct 12 and the second air duct 13 are connected to the battery cavity 11, and multiple battery boxes 20 are installed in the battery cavity 11, and each battery box 20 is provided with a shell 21, a battery module and a heat dissipation fan, the shell 21 is provided with an installation cavity 211, a first vent 221 and a second vent 231, and the first vent 221 is connected to the first air duct 12 and the installation cavity 211, and the second vent 231 is connected to the second air duct 13 and the installation cavity 211, the battery module 24 is installed in the installation cavity 211, the heat dissipation fan is installed at the second vent 231, the temperature regulating device 30 is installed in the cabinet 10, the temperature regulating device 30 is provided with an air supply component, and the air supply component drives the airflow to circulate in the first air duct 12, the battery cavity 11 and the second air duct 13. That is, during the use of the cabinet-type energy storage system, the air supply fan drives the airflow to circulate in the first air duct 12, the battery cavity 11 and the second air duct 13. When the airflow flows to the battery cavity 11, the heat dissipation fan on the battery box 20 can drive the airflow in the battery cavity 11 to fully flow into the installation cavity 211, and exchange heat with the battery module 24 through the flowing airflow, thereby improving the heat exchange effect between the airflow and the battery module 24. The heat dissipation fan can also drive the airflow in the battery cavity 11 to flow quickly into the installation cavity 211, which can increase the airflow velocity, that is, improve the heat dissipation efficiency of the battery module 24, and thereby improve the heat dissipation effect of the battery box 20.

In some embodiments, the battery cavity 11 is provided with at least two rows of battery mounting positions, each row of battery mounting positions is provided with a plurality of battery boxes 20 arranged up and down, and a ventilation gap 14 is formed between the battery boxes 20 of any two adjacent rows of battery mounting positions, and the ventilation gap 14 is connected between the first air duct 12 and the first vent 221. The cabinet-type energy storage system also includes a baffle 50, which is covered on a side of the ventilation gap 14 away from the first air duct 12 and is separated between the ventilation gap 14 and the second air duct 13. In this embodiment, the battery cavity 11 is provided with at least two rows of battery installation positions, and at least two rows of battery installation positions are arranged at intervals along the width direction of the cabinet 10 (refer to the direction indicated by the arrow X in FIG. 2 ), and each row of battery installation positions is provided with a plurality of battery boxes 20 arranged up and down, and a ventilation gap 14 is formed between the battery boxes 20 of any two adjacent rows of battery installation positions, and the baffle 50 is provided on the side of the ventilation gap 14 away from the first air duct 12 to separate the ventilation gap 14 from the second air duct 13, which can prevent the air supply component from blowing the airflow from the first air duct 12 to the battery cavity 11. When part of the airflow passes directly to the second air duct 13 through the ventilation gap 14, a large amount of airflow passes through the installation cavity 211 of each battery box 20, which allows the airflow to fully exchange heat with the battery module 24, thereby improving the heat dissipation efficiency of the battery module 24. Of course, in other embodiments, only one row of battery installation positions can be provided in the battery cavity 11, or three rows of battery installation positions, four rows of battery installation positions, five rows of battery installation positions or more can be provided.

In some embodiments, the battery cavity 11 is provided with at least three rows of battery installation positions, and the cabinet-type energy storage system includes a plurality of baffles 50, each baffle 50 correspondingly covers a ventilation gap 14 on the side away from the first air duct 12. Specifically, the three rows of battery installation positions are arranged at intervals along the width direction of the cabinet 10, and each ventilation gap 14 is covered with a baffle 50, which is equivalent to a ventilation gap 14 on the side away from the first air duct 12 being covered with a baffle 50. Compared with the manner in which a whole baffle 50 is covered on multiple ventilation gaps 14, the arrangement manner in which a ventilation gap 14 is covered with a baffle 50 can reduce the space occupied by the baffle 50, so that the battery box 20 has sufficient installation space. Of course, in other embodiments, the cabinet-type energy storage system includes a baffle 50, and a baffle 50 is simultaneously covered on the side of multiple ventilation gaps 14 away from the first air duct 12.

In some embodiments, the battery module 24 includes a plurality of battery cells 241 arranged in sequence, and a heat dissipation duct 43 is formed between any two adjacent battery cells 241. Specifically, after the airflow flows from the first air duct 12 into the mounting cavity 211, the airflow can flow into each heat dissipation duct 43, and the flowing airflow exchanges heat with the battery cells 241, thereby taking away the heat of the battery cells 241, which is equivalent to increasing the contact area between the battery module 24 and the airflow, that is, increasing the heat dissipation area of the battery module 24, thereby improving the heat dissipation efficiency of the battery module 24, and then improving the heat dissipation effect of the battery box 20. Of course, in other embodiments, any two adjacent battery cells 241 are arranged in close proximity.

In some embodiments, the shell 21 has two opposite first side walls 22 and a second side wall 23 connected between the two first side walls 22, each first side wall 22 is provided with a first vent 221, and the second side wall 23 is provided with a second vent 231, and the multiple battery cells 241 of the battery module 24 are arranged in sequence along a direction perpendicular to the second side wall 23, and a first vent 221 is provided at the position of each heat dissipation duct 43 of the first side wall 22.

Specifically, the first side wall 22 is provided with a first first vent 221, and the plurality of first vents 221 are provided in one-to-one correspondence with the plurality of heat dissipation ducts 43. When the airflow flows from the first duct 12 to the battery box 20, it can directly flow from the first vent 221 into the corresponding heat dissipation duct 43 to perform heat exchange with the battery unit 241, thereby improving the heat dissipation efficiency of the battery unit 241. Of course, in other embodiments, the first side wall 22 may also be provided with only one first vent 221.

In some embodiments, a heat conducting member 40 is disposed between any two adjacent battery units 241 . The heat conducting member 40 abuts between the two battery units 241 and forms a heat dissipation duct 43 .

Specifically, a heat conducting member 40 is provided between any two adjacent battery cells 241, and each battery cell 241 is thermally connected to the corresponding heat conducting member 40, that is, the heat generated by each battery cell 241 during operation can be conducted to the corresponding heat conducting member 40 for heat exchange, so that when the airflow flows through the heat dissipation duct 43, the heat of the heat conducting member 40 can be taken away, which is equivalent to increasing the contact area between the airflow and the battery cell 241, that is, increasing the heat dissipation area, thereby improving the heat dissipation efficiency of the battery cell 241. Of course, in other embodiments, no heat conducting member 40 is provided between any two adjacent battery cells 241.

In some embodiments, the heat conducting member 40 includes two opposing first heat conducting plates 41 and a plurality of second heat conducting plates 42 connected between the two first heat conducting plates 41, wherein one first heat conducting plate 41 abuts against one battery cell 241, and another first heat conducting plate 41 abuts against another battery cell 241, and a heat dissipation duct 43 is formed between the two first heat conducting plates 41 and between any two adjacent second heat conducting plates 42.

Specifically, the two first heat conducting plates 41 extend along the air supply direction of the heat dissipation duct 43, each battery unit 241 is thermally connected to the corresponding first heat conducting plate 41, and the multiple second heat conducting plates 42 are arranged between the two first heat conducting plates 41 and extend along the extension direction of the first heat conducting plates 41. When the battery unit 241 conducts heat to the corresponding first heat conducting plate 41, the first heat conducting plate 41 can conduct heat to the multiple second heat conducting plates 42, and a heat dissipation duct 43 is formed between the two first heat conducting plates 41 and between any two adjacent second heat conducting plates 42. In this way, when the heat dissipation fan drives the airflow to flow into the heat dissipation duct 43, the airflow can contact the surfaces of the multiple second heat conducting plates 42 and the two first heat conducting plates 41, which is equivalent to increasing the surface area of the heat conducting member 40, that is, increasing the contact area between the airflow and the heat conducting member 40, thereby improving the heat dissipation efficiency of the battery unit 241. In this embodiment, the plurality of second heat conducting plates 42 is at least two, but not limited to two. For example, the plurality of second heat conducting plates 42 can be two, three, four or more, which can be set according to actual conditions, and the present application does not make specific restrictions on this. Of course, in other embodiments, the heat conducting member 40 is only provided with one second heat conducting plate 42.

In some embodiments, the second heat conducting plate 42 is arranged obliquely relative to the first heat conducting plate 41. Specifically, compared with the manner in which the second heat conducting plate 42 is arranged perpendicularly to the first heat conducting plate 41, the second heat conducting plate 42 is arranged obliquely relative to the first heat conducting plate 41, so that the distance between the second heat conducting plate 42 from one of the two first heat conducting plates 41 to the other can be increased, that is, the width of the second heat conducting plate 42 can be increased, which is equivalent to increasing the contact area between the second heat conducting plate 42 and the airflow, thereby improving the heat dissipation efficiency, that is, improving the heat dissipation effect. Of course, in other embodiments, the second heat conducting plate 42 is arranged perpendicularly relative to the first heat conducting plate 41.

In some embodiments, the first heat conducting plate 41 and the second heat conducting plate 42 are integrally formed. It can be understood that the integral forming process has high production efficiency and high structural strength, can reduce the assembly process between the first heat conducting plate 41 and the second heat conducting plate 42, and also helps to reduce production costs. Of course, in other embodiments, the first heat conducting plate 41 and the second heat conducting plate 42 are separately formed.

In some embodiments, the material of the heat conductive member 40 is at least one of copper, aluminum, aluminum alloy and tungsten. It is understandable that copper, aluminum, aluminum alloy and tungsten all have good thermal conductivity, so when copper, aluminum, aluminum alloy and tungsten are made into the heat conductive member 40, the heat conductive member 40 in this embodiment can also have good thermal conductivity, thereby improving the heat exchange efficiency between the heat conductive member 40 and the battery unit 241, thereby improving the heat dissipation efficiency.

In some embodiments, an insulating heat-conducting layer is provided between each heat-conducting member 40 and the corresponding battery cell 241. Specifically, each heat-conducting member 40 is bonded and connected to the corresponding battery cell 241 through the insulating heat-conducting layer, so that each heat-conducting member 40 can be more closely bonded to the corresponding battery cell 241. It can be understood that the insulating heat-conducting layer has a heat-conducting effect, which can enhance the heat exchange between the heat-conducting member 40 and the battery cell 241, thereby enhancing the heat dissipation effect of the battery cell 241. Among them, the insulating heat-conducting layer can be but does not include: thermal grease, thermal silica gel, thermal pads, etc., which can be specifically set according to actual needs, and the present application does not impose specific restrictions on this. Of course, in other embodiments, each heat-conducting member 40 is directly bonded and connected to the corresponding battery cell 241.

In some embodiments, the battery box 20 includes at least two battery modules 24, at least two battery modules 24 are disposed in the installation cavity 211, and are arranged in sequence along the arrangement direction of the two first side walls 22. A first heat exchange duct 25 is formed between any two adjacent battery modules 24, and the first heat exchange duct 25 connects the second ventilation port 231 and the heat dissipation duct 43. The distance between the first side wall 22 and the corresponding battery module 24 is smaller than the width of the first heat exchange duct 25.

Specifically, the arrangement direction of the two first side walls 22 of the two battery modules 24 is arranged in sequence and spaced apart on the first side wall 22. The spacing between the battery module 24 and the first side wall 22 is smaller than the spacing between the two battery modules 24. In this way, after the external airflow flows into the shell 21, it can prevent a large amount of airflow from flowing to the gap between the first side wall 22 and the battery module 24, resulting in only a small amount of airflow flowing through the heat dissipation duct 43. Each heat dissipation duct 43 of the battery module 24 can have a large amount of airflow passing through, so that the airflow and the heat dissipation duct 43 can fully exchange heat, thereby improving the heat dissipation efficiency of the circuit module. Of course, in other embodiments, the first side wall 22 abuts against the battery module 24.

In some embodiments, the temperature regulating device 30 is provided with a second heat exchange air duct 31 and a heat exchange device located in the second heat exchange air duct 31, the air outlet of the second heat exchange air duct 31 is connected to the first air duct 12, and the return air outlet of the second heat exchange air duct 31 is connected to the second air duct 13, so that the second heat exchange air duct 31, the first air duct 12, the battery cavity 11 and the second air duct 13 form a circulating air duct for air circulation in the cabinet 10.

Specifically, the air in the cabinet 10 can flow through the first air duct 12, the battery cavity 11 and the second air duct 13 in sequence through the second heat exchange air duct 31, and when the airflow passes through the heat exchange device in the second heat exchange air duct 31, the airflow exchanges heat with the heat exchange device, thereby reducing the temperature of the airflow. When the low-temperature airflow passes through the first air duct 12 again and flows to the heat dissipation air duct 43, it can exchange heat with the battery module again, thereby realizing heat dissipation of the battery module 24.

In some embodiments, the battery cavity 11 is provided with mounting positions arranged in the vertical direction, each mounting position is equipped with a battery box 20, the air outlet of the second heat exchange air duct 31 is located at the upper position of the cabinet 10, the battery cavity 11 has a first side and a second side opposite to each other, the first air duct 12 includes a top air duct 121 and a vertical air duct 122 connected to the top air duct 121, the top air duct 121 is connected to the air outlet, the vertical air duct 122 is located on the first side of the battery cavity 11 and is connected to the battery cavity 11, and the second side of the battery cavity 11 is connected to the second air duct 13. In this way, the cold air flow flowing out of the second heat exchange air duct 31 can flow downward along the vertical air duct 122 after passing through the top air duct 121, and the cold air flow can flow to the bottom position of the vertical air duct 122 as much as possible, so that the battery box 20 located at the bottom of the battery cavity 11 can also have cold air flow passing through, which can improve the heat dissipation uniformity of the upper and lower positions of the battery cavity 11.

In some embodiments, the first vent 221 is an air inlet, and the second vent 231 is an air outlet. Specifically, the air supply assembly drives the airflow from the first air duct 12 to the battery cavity 11, and the heat dissipation fan drives the airflow flowing to the battery cavity 11 to quickly flow into the installation cavity 211 through the first vent 221, so as to exchange heat with the battery module 24 through the flowing airflow, thereby taking away the heat of the battery module 24, and the airflow heat dissipation fan after the heat exchange is discharged from the installation cavity 211 to the second air duct 13 through the second vent 231, thereby achieving heat dissipation of the battery box 20.

The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly/indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. A cabinet-type energy storage system, characterized in that it comprises: A cabinet body, comprising a battery cavity, a first air duct and a second air duct, wherein the first air duct and the second air duct are both connected to the battery cavity; A plurality of battery boxes are arranged in the battery cavity, each of the battery boxes comprises a shell, a battery module and a heat dissipation fan, the shell is provided with a mounting cavity, a first vent and a second vent, the battery module is arranged in the mounting cavity, the first vent is connected with the first air duct and the mounting cavity, the second vent is connected with the mounting cavity and the second air duct, the heat dissipation fan is arranged at the second vent, one of the first vent and the second vent is an air inlet, and the other is an air outlet; and A temperature regulating device is installed on the cabinet, and the temperature regulating device is provided with an air supply component, and the air supply component is configured to drive the air flow to circulate in the first air duct, the battery cavity and the second air duct. 2. The cabinet-type energy storage system according to claim 1 is characterized in that the battery module comprises a plurality of battery cells arranged in sequence, and a heat dissipation duct is formed between any two adjacent battery cells. 3. The cabinet-type energy storage system as described in claim 2 is characterized in that the battery cavity is provided with at least two rows of battery mounting positions, each row of the battery mounting positions is provided with a plurality of the battery boxes arranged up and down, and a ventilation gap is formed between the battery boxes of any two adjacent rows of the battery mounting positions, and the ventilation gap is connected between the first air duct and the first vent, and the cabinet-type energy storage system further comprises a baffle, and the baffle cover is provided on a side of the ventilation gap away from the first air duct, and is separated between the ventilation gap and the second air duct. 4. The cabinet-type energy storage system as described in claim 3 is characterized in that the battery cavity is provided with at least three rows of battery installation positions, and the cabinet-type energy storage system comprises a plurality of baffles, each of which is correspondingly covered on a side of the ventilation gap away from the first air duct. 5. The cabinet-type energy storage system as described in claim 2 is characterized in that the shell has two opposite first side walls and a second side wall connected between the two first side walls, each of the first side walls is provided with the first vent, and the second side wall is provided with the second vent, and the multiple battery cells of the battery module are arranged in sequence along a direction perpendicular to the second side wall, and the first side wall is provided with a first vent at a position corresponding to each of the heat dissipation ducts. 6. The cabinet-type energy storage system according to claim 5 is characterized in that the battery box includes at least two battery modules, at least two battery modules are arranged in the installation cavity, and are arranged in sequence along the arrangement direction of the two first side walls, and a first heat exchange air duct is formed between any two adjacent battery modules, the first heat exchange air duct is connected to the second ventilation port and the heat dissipation air duct, and the distance between the first side wall and the corresponding battery module is less than the width of the first heat exchange air duct. 7. The cabinet-type energy storage system according to claim 2, characterized in that a heat conducting member is provided between any two adjacent battery units, the heat conducting member abuts between the two battery units to form the heat dissipation duct. 8. The cabinet-type energy storage system according to claim 7, characterized in that the heat conducting member comprises two opposite first heat conducting plates and a plurality of second heat conducting plates connected between the two first heat conducting plates, wherein one of the first heat conducting plates abuts against one of the battery cells, another of the first heat conducting plates abuts against another of the battery cells, and the heat dissipation duct is formed between the two first heat conducting plates and between any two adjacent second heat conducting plates. 9. The cabinet-type energy storage system according to claim 3 is characterized in that the temperature regulating device is provided with a second heat exchange air duct and a heat exchange device located in the second heat exchange air duct, the air outlet of the second heat exchange air duct is connected to the first air duct, and the air return outlet of the second heat exchange air duct is connected to the second air duct, so that the second heat exchange air duct, the first air duct, the battery cavity and the second air duct form a circulating air duct for circulating air in the cabinet. 10. The cabinet-type energy storage system according to claim 9 is characterized in that the air outlet of the second heat exchange air duct is located at the upper position of the cabinet, the battery cavity has a first side and a second side opposite to each other, the first air duct includes a top air duct and a vertical air duct connected to the top air duct, the top air duct is connected to the air outlet of the second heat exchange air duct, the vertical air duct is located on the first side of the battery cavity and is connected to the battery cavity, and the second side of the battery cavity is connected to the second air duct.