CN118232183A - Energy storage device - Google Patents

Abstract

The invention discloses energy storage equipment, which comprises a cabinet body and an energy storage converter, wherein the top of the cabinet body is respectively provided with a PCS (personal communication System) installation assembly, an air outlet assembly and an upper outlet assembly; the air-out subassembly includes: the first channel is used for guiding out airflow from the direction of the energy storage converter; the upper outlet assembly includes: the wire outlet box is provided with a wire collecting hole between the wire outlet box and the cabinet body, and the wire outlet hole penetrates through the wire outlet box and is communicated with the wire outlet hole. The PCS installation component provided by the invention not only fixes the energy storage converter at the top of the cabinet body, but also provides a space layout for optimizing heat dissipation of the energy storage converter for the air outlet component, and provides enough space for the upper wire outlet component to conduct circuit arrangement. The air outlet assembly and the PCS installation assembly work cooperatively, and the circuit at the top of the cabinet body and the thermal management of the environment where the energy storage converter is located are ensured to meet the requirements through the optimized space layout and the air flow guiding-out path, so that the stable operation of the energy storage system is ensured.

Description

Energy storage device

Technical Field

The present invention relates to the technical field of industrial and commercial energy storage, and in particular to an energy storage device.

Background technique

Energy storage cabinets are a key equipment in power systems, and their main function is to store electricity generated by renewable energy sources such as wind and solar energy. Currently, commercial and industrial energy storage cabinets on the market usually adopt a bottom-outlet (power connection line) design in consideration of factors such as thermal management and protection. Although this design meets the needs of safety and thermal management to a certain extent, it also brings some obvious defects, especially in terms of the flexibility of line layout. Specifically: the line layout is not flexible when the energy storage cabinet is assembled, and it is difficult to adjust and change the line, which makes it difficult to meet the requirements of different needs and scenarios.

Summary of the invention

The main purpose of the present invention is to provide an energy storage device that can flexibly arrange circuits when assembling the energy storage device while meeting safety and thermal management requirements, and also helps to adjust and change the circuits to meet the requirements of different needs and scenarios.

The purpose of the present invention can be achieved by adopting the following technical solutions:

An energy storage device, comprising: a cabinet and an energy storage converter, wherein a PCS installation component, an air outlet component and an upper outlet component are respectively arranged on the top of the cabinet, and the energy storage converter is arranged on the PCS installation component;

The air outlet assembly includes: a first channel, the first channel is used to guide the airflow from the direction of the energy storage converter outward;

The upper outlet assembly includes: an outlet box, a collection hole is provided between the outlet box and the cabinet, the outlet box is penetrated by the outlet hole, the collection hole and the outlet hole are connected, so that the lines on the cabinet can be wired through the collection hole and the outlet hole.

Wherein, the PCS installation assembly includes: a support member and a fastener for forming a clamping space, and the energy storage converter is arranged in the clamping space.

Wherein, the support member includes: a fixing part, a supporting part arranged on the top of the fixing part, the energy storage inverter is installed on the supporting part, and the fixing part is installed on the top of the cabinet so that a space is left between the energy storage inverter and the top of the cabinet.

There are two support members, which are distributed at opposite positions, and the fastener and the two support members together enclose the clamping space.

Wherein, the air outlet component comprises:

an inlet, the inlet being used to introduce the airflow;

an outlet, the diameter of the outlet is larger than the diameter of the inlet, and the outlet faces outside the cabinet;

The inlet and the outlet are connected through the first channel to form an airflow derivation structure from small to large.

Wherein, a detachable outlet mounting plate is provided on one side of the outlet box, and a plurality of outlet holes are provided, and they are all arranged on the outlet mounting plate.

Wherein, guide plates are respectively arranged on two opposite sides of the top of the outlet box, and a circuit breaker fixing plate is inserted between the guide plates on both sides, wherein the opposite sides of the circuit breaker fixing plate abut against the guide plates adjacent thereto.

Wherein, the energy storage device further includes: a supporting bottom plate, the PCS installation assembly, the air outlet assembly and the upper outlet assembly are all arranged on the supporting bottom plate, and the supporting bottom plate is fixed to the top of the cabinet.

Wherein, the energy storage device further comprises:

A top cover, the top cover is hinged to the top of the cabinet;

A drive assembly, wherein the drive assembly is disposed between the top cover and the cabinet body,

The driving assembly is used to control the opening and closing of the top cover.

Wherein, the energy storage device further comprises:

A cavity, the cavity is arranged inside the cabinet, and the cavity is used to place a plurality of energy storage batteries;

A refrigeration component, which is arranged outside the cabinet and is used to deliver cooling gas to the cavity;

A ventilation component is arranged at the top of the cavity, and is used to absorb hot air in the cavity and transport the hot air to the refrigeration component for cooling.

Beneficial technical effects of the present invention:

1. The PCS installation assembly provided by the present invention not only fixes the energy storage converter on the top of the cabinet, but also provides a spatial layout for the air outlet assembly to optimize the heat dissipation of the energy storage converter, and leaves enough space for the upper outlet assembly to arrange the lines. The air outlet assembly and the PCS installation assembly work together to ensure that the thermal management of the lines on the top of the cabinet and the environment where the energy storage converter is located meets the requirements through the optimized spatial layout and airflow export path, thereby ensuring the stable operation of the energy storage system.

2. The present invention adopts an upper outlet assembly so that the lines in the energy storage cabinet can achieve the effect of top outlet through the collection hole and the outlet hole on the outlet box, and the energy storage battery in the cabinet can be directly connected to the energy storage converter on the top of the cabinet after it is outlet to the top, so as to realize the conversion and storage of electric energy.

3. Compared with the traditional bottom outlet, the upper outlet assembly of the present invention outlets the line through the top of the cabinet. This design utilizes the usually relatively free space above the cabinet, provides more possibilities and space for line layout, and significantly improves the flexibility of line layout. This design enables the line to be more flexibly laid out and adjusted according to the needs of the installation scene, especially when the space in the cabinet is limited or the line layout requirements are variable.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a three-dimensional schematic diagram of a cabinet of an energy storage device according to an embodiment of the present invention;

FIG2 is a three-dimensional schematic diagram of the components on the top of the cabinet in FIG1 ;

3 is a three-dimensional schematic diagram of a PCS installation assembly of an energy storage device according to an embodiment of the present invention;

FIG4 is a three-dimensional schematic diagram of an upper outlet assembly of an energy storage device according to an embodiment of the present invention;

FIG5 is a perspective schematic diagram of a ventilation assembly of an energy storage device according to an embodiment of the present invention;

FIG6 is a three-dimensional schematic diagram of a cabinet of an energy storage device according to an embodiment of the present invention;

7 is a perspective schematic diagram of a top cover of an energy storage device according to an embodiment of the present invention;

FIG8 is a schematic top view of a refrigeration assembly of an energy storage device according to an embodiment of the present invention;

FIG9 is an enlarged schematic diagram of A in FIG4 ;

FIG. 10 is a three-dimensional schematic diagram of a ventilation assembly of an energy storage device according to an embodiment of the present invention.

Description of reference numerals:

In the figure: 1-cabinet, 101-cavity, 2-PCS installation assembly, 201-support, 2011-fixing part, 2012-support part, 202-fastener, 3-air outlet assembly, 301-inlet, 302-outlet, 303-first channel, 304-second channel, 31-first part of the shell, 32-second part of the shell, 4-upper outlet assembly, 5-energy storage converter, 6-outlet box, 601-collector Wire hole, 602-wire outlet hole, 7-wire outlet mounting plate, 8-guide plate, 801-bottom bending part of the guide plate, 9-circuit breaker fixing plate, 901-side wing, 902-top bending part of the side wing, 11-support bottom plate, 12-ventilation and dustproof component, 13-refrigeration component, 14-ventilation component, 1401-air outlet shell, 1402-exhaust fan, 15-top cover, 1501-cable channel, 16-drive component.

Detailed ways

In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

As shown in FIGS. 1 to 10 , the energy storage device provided in this embodiment includes a cabinet 1 and an energy storage converter 5 , as well as a PCS installation component 2 , an air outlet component 3 and an upper outlet component 4 all arranged on the top of the cabinet 1 .

The energy storage converter 5 is installed on the PCS installation component 2, which is responsible for fixing the energy storage converter 5 on the top of the cabinet 1 to ensure that it does not produce relative displacement relative to the cabinet 1 or other components when the energy storage device is in use, thereby ensuring the reliability of the energy storage device.

By fixing the energy storage inverter 5 on the top of the cabinet 1, the PCS installation component 2 not only solves the stability problem of the installation of the energy storage inverter 5, but also provides a spatial layout for optimizing the heat dissipation of the energy storage inverter 5 for the air outlet component 3, and leaves enough space for the upper outlet component 2 for line layout.

The air outlet assembly 3 and the PCS installation assembly 2 are arranged in a front-to-back spacing, and the air outlet assembly 3 includes: a first channel 303, and the first channel 303 is used to receive the airflow from the direction of the energy storage converter 5 and guide it out of the cabinet 1. Here, the external cold air can be blown toward the energy storage converter 5, so that the hot air generated by the energy storage converter 5 is guided out from the first channel 303.

As an independent ventilation structure, the air outlet component 3 is mainly responsible for effectively exporting the hot air flow from the energy storage inverter 5 to the outside, ensuring that the air flow around the energy storage inverter 5 can flow effectively, thereby helping to dissipate the heat generated by the energy storage inverter 5 during operation. The air outlet component 3 works in conjunction with the PCS installation component 2 and the energy storage inverter 5 thereon, and by optimizing the spatial layout and air flow export path, it helps to maintain the operation of the energy storage inverter 5 within the ideal temperature range, ensuring the stability and long-term reliability of the energy storage equipment.

The PCS installation component 2 and the upper outlet component 4 are distributed on the left and right. The upper outlet component 4 includes: an outlet box 6 installed on the top surface of the cabinet 1, a collection hole 601 is provided between the bottom surface of the outlet box 6 and the top surface of the cabinet 1, and an outlet hole 602 is penetrated in front of the outlet box 6.

The collection hole 601 and the outlet hole 602 are interconnected, and the lines inside or outside the cabinet 1 can be routed through the collection hole 601 and the outlet hole 602, thereby achieving the purpose of the lines being routed out from the top of the cabinet 1. After the cables of the energy storage battery in the cabinet 1 extend from the outlet box 6, they can be connected to the energy storage converter 5 on the top of the cabinet 1 to achieve the conversion and storage of electric energy.

In this embodiment, the energy storage inverter 5 is fixed by the PCS installation component 2 to ensure that the energy storage inverter 5 is firmly installed on the top of the cabinet 1. This not only improves the stability of the energy storage inverter 5 itself, but also leaves space for the wiring of the upper outlet component 4, thereby avoiding mutual interference between the line and the energy storage inverter 5 and increasing the flexibility of wiring.

In this embodiment, the PCS installation assembly 2 includes: a support member 201 and a fastener 202, wherein the support member 201 is fixed to the top of the cabinet 1, and the fastener 202 is fixed above the support member 201 and forms a clamping space with the support member 201. The energy storage converter 5 is installed in the clamping space, and the energy storage converter 5 is clamped and fixed.

In this embodiment, the support member 201 includes: a fixing portion 2011 , a supporting portion 2012 disposed on the top of the fixing portion 2011 , and the energy storage converter 5 is installed on the supporting portion 2012 .

The fixing part 2011 is installed on the top of the cabinet 1 . The main function of the fixing part 2011 is to fix the cabinet 1 while supporting the supporting part 2012 so that there is a space between the supporting part 2012 and the cabinet 1 .

There is space between the support part 2012 and the cabinet 1, which can ensure that when the energy storage inverter 5 is installed on the support part 2012, there is space between its bottom surface and the top of the cabinet 1, which is conducive to air circulation, thereby facilitating the heat dissipation of the energy storage inverter 5. At the same time, with the assistance of the air outlet component 3, the heat dissipation effect of the energy storage inverter 5 is better.

In this embodiment, two support members 201 are provided and are distributed at opposite positions. The fastener 202 and the two support members 201 are enclosed together to form a clamping space.

The energy storage converter 5 is placed on the two support parts 2012 and is pressed by the fasteners 202 at the same time. This fixing method can effectively fix the position of the energy storage converter 5 and also facilitate the disassembly and assembly of the energy storage converter 5 when needed.

In this embodiment, the support portion 2012 is an L-shaped structure, the bottom side of which is used to support the energy storage inverter 5, and the adjacent side of which is used to limit the horizontal direction of the energy storage inverter 5. At the same time, the adjacent side is connected and fixed to the fastener 202 to clamp and fix the energy storage inverter 5, ensuring that the movement of the energy storage inverter 5 is completely restricted.

In this embodiment, the fastener 202 is C-shaped and narrow as a whole, and its two ends are respectively connected to the corresponding support parts 2012 to enclose a clamping space. In this way, the energy storage converter 5 can be clamped effectively and conveniently, and this fixing method prevents the PCS installation component 2 from being too closely attached to the surface of the energy storage converter 5, which is conducive to the surface heat dissipation of the energy storage converter 5.

In this embodiment, the air outlet assembly 3 includes: an inlet 301 and an outlet 302 , the inlet 301 faces the energy storage converter 5 , and the outlet 302 faces the outside of the cabinet 1 .

The caliber of the outlet 302 is larger than that of the inlet 301, and the inlet 301 and the outlet 302 are connected through the first channel 303, forming an airflow derivation structure from small to large, which optimizes the airflow guidance around the energy storage converter 5. The airflow derivation structure is the air outlet component 3.

The inlet 301 is arranged toward the energy storage converter 5 so that after the external cold air flows along the energy storage converter 5, it can directly carry the hot air to flow out of the cabinet 1 through the airflow derivation structure composed of the inlet 301, the first channel 303 and the outlet 302. This design helps the cold air (airflow) to leave the cabinet 1 more smoothly through the enlarged outlet 302 after absorbing heat through the energy storage converter 5. The airflow path design from small to large can reduce the resistance of the airflow, so that the hot air can be discharged out of the cabinet 1 more quickly, thereby improving the heat dissipation efficiency.

In this embodiment, a wire outlet mounting plate 7 is detachably mounted on the front side of the wire outlet box 6, and a plurality of wire outlet holes 602 are provided, and they are all arranged on the wire outlet mounting plate 7. The plurality of wire outlet holes 602 are spaced apart along the length direction of the wire outlet mounting plate 7.

This design allows the outlet installation plate 7 to be replaced and disassembled, which is convenient for adapting to cables of different numbers and models, ensuring that different cables can be separated from each other and extended in an orderly manner in a preset direction when passing through the outlet installation plate 7, and also facilitates the adjustment and maintenance of the cables.

In this embodiment, a guide plate 8 is provided on the left and right sides of the top of the outlet box 6 , and a circuit breaker fixing plate 9 is inserted between the two guide plates 8 .

When the circuit breaker fixing plate 9 is inserted between the two guide plates 8 , the left and right sides of the circuit breaker fixing plate 9 are respectively in contact with the adjacent guide plates 8 .

At this time, the guide plate 8 plays a role of limiting and guiding the circuit breaker fixing plate 9, ensuring that the circuit breaker fixing plate 9 can only continue to be inserted along the insertion direction or be disengaged in the reverse direction, so that the installation of the circuit breaker fixing plate 9 is rapid and accurate.

In this embodiment, a side wing 901 is provided on the left and right sides of the circuit breaker fixing plate 9. The guide plate 8 is in a C-shaped structure, and its bottom end is bent upward to form a bottom bent portion 801 of the guide plate 8. When the circuit breaker fixing plate 9 is installed, the bottom bent portion 801 can be attached to the outer wall of the side wing 901 with a larger area.

When the circuit breaker fixing plate 9 is inserted between the two guide plates 8 , the outer walls of the two side wings 901 abut against the corresponding guide plates 8 , respectively.

In this embodiment, the top end of the side wing 901 is bent in the horizontal direction to form a top bent portion 902 of the side wing 901. The top bent portion 902 is located below the top end of the guide plate 8 adjacent thereto. The top bent portion 902 can be attached to the top bottom surface of the guide plate 8 when the circuit breaker fixing plate 9 is installed.

In this way, the bottom bent portion 801 of the guide plate 8 cooperates with the outer wall of the side wing 901, and the top bent portion 902 of the side wing 901 cooperates with the top of the guide plate 8, so that the circuit breaker fixing plate 9 will not deviate left or right or up or down during the installation process, ensuring that the installation process is extremely stable and quick.

In this embodiment, the energy storage device further includes: a supporting bottom plate 11, and the PCS installation assembly 2, the air outlet assembly 3 and the upper outlet assembly 4 are all installed on the top surface of the supporting bottom plate 11. The supporting bottom plate 11 is connected and fixed to the top of the cabinet 1.

After the PCS installation component 2, the air outlet component 3 and the upper outlet component 4 are all installed on the supporting base plate 11, the supporting base plate 11 can be installed on the top of the cabinet 1. This does not require too many steps on the top of the cabinet 1, and can simplify the assembly process of the energy storage device.

In this embodiment, the energy storage device further includes: a top cover 15 for covering the supporting bottom plate 11 and various components thereon, and the top cover 15 is hinged to the top of the cabinet 1 .

A driving assembly 16 is provided between the top cover 15 and the cabinet 1, and the driving assembly 16 can control the opening and closing of the top cover 15 on the cabinet 1. The top cover 15 mainly protects the PCS installation assembly 2, the air outlet assembly 3 and the upper outlet assembly 4 on the supporting bottom plate 11.

In this embodiment, the cables inside and outside the cabinet 1 can extend outward or extend inward through the cable channel 1501 on the top cover 15 .

In this embodiment, the driving assembly 16 is a gas spring. The gas spring is used mainly to facilitate the control of the flipping of the top cover 15 to improve safety and convenience during maintenance.

In this embodiment, the air outlet assembly 3 is an integrally formed shell structure, and the opposite ends of the shell 3 are connected to form a first channel 303, and the opposite ends of the first channel 303 are respectively defined as an inlet 301 and an outlet 302. The shell 3 is divided into a first shell part 31 and a second shell part 32 according to its length direction, the inlet 301 is provided in the first shell part 31, and the outlet 302 is provided in the second shell part 32.

The bottom surface of the first shell portion 31 is horizontal and higher than the bottom surface of the second shell portion 32 . A cable accommodating space is reserved between the bottom surface of the first shell portion 31 and the top surface of the supporting base plate 11 . The cable accommodating space is the second channel 304 .

The horizontal design of the bottom surface of the first part 31 of the shell not only takes into account the small-diameter design of the inlet 301, but also takes into account the management of cables. It can be seen that the partition design of the air outlet component 3 not only optimizes the air circulation, but also integrates the cable management function. Such a design fully considers the effective use of space, so that the second channel 304 can provide a layout path for the cables on the top of the cabinet 1 without affecting the main heat dissipation function of the air outlet component 3.

Through this partition design, the air outlet assembly 3 not only achieves effective heat dissipation for the energy storage converter 5, but also optimizes the use of the top space of the cabinet 1, avoiding additional structural complexity that may be introduced due to cable layout.

In this embodiment, a cavity 101 is provided inside the cabinet 1, and a plurality of energy storage batteries are installed in the cavity 101 along the height direction. A refrigeration assembly 13 is provided outside the cabinet 1, and the refrigeration assembly 13 is used to deliver cooling gas to the cavity 101 to cool the energy storage batteries and other components in the cavity 101.

A ventilation assembly 14 is provided on the top of the cavity 101, and the ventilation assembly 14 is used to absorb the hot air in the cavity 101 and transport it to the refrigeration assembly 13, so that the refrigeration assembly 13 converts the hot air into cold air and then blows it into the cavity 101, thereby cooling the energy storage battery and other components in the cavity 101.

In this embodiment, two cavities 101 are provided, and they are arranged adjacent to each other. A ventilation assembly 14 is provided on the top of each cavity 101, and the ventilation assembly 14 includes: an air outlet shell 1401, and an exhaust fan 1402 is provided at the inlet of the air outlet shell 1401. Each cavity is exhausted independently without affecting each other, so as to meet the needs of different users and application scenarios.

In this embodiment, a plurality of ventilation and dustproof components 12 are provided on the top of the cabinet 1 , and the plurality of ventilation and dustproof components 12 are respectively arranged on the front and rear sides of the PCS installation component 2 , the air outlet component 3 and the upper outlet component 4 .

In this embodiment, the ventilation and dust prevention component 12 can be a shutter, which can effectively block the entry of floating objects from the external environment while not affecting the ventilation effect of the air outlet component 3.

In summary, in this embodiment, the design of the PCS installation component 2, the air outlet component 3 and the upper outlet component 4 provided in this embodiment, as well as the overall modular layout, simplifies the installation process of the energy storage device, making the installation, disassembly and maintenance of the above-mentioned components more convenient. In particular, the configuration of the top outlet box 6 makes the connection, connection and adjustment of the cables more flexible and convenient. And the upper outlet component 4 provides better adaptability, and can flexibly arrange the lines according to different installation environments. For example, in a limited space or when the cable needs to be directly introduced into the adjacent equipment, the top outlet provides a direct and effective solution. This flexibility is particularly important for complex or changing installation environments.

This embodiment improves the stability and reliability of the energy storage device during transportation and use by optimizing the heat dissipation design and structural stability (such as the fixing method of the PCS installation component 2). Effective heat dissipation management also helps to extend the service life of key components such as the energy storage converter 5.

The design of the support base plate 11 and the top cover 15 provided in this embodiment not only facilitates the integration and protection of components, but also enables the device to be quickly adjusted according to different configuration requirements.

The above description is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the scope disclosed by the present invention, which belong to the protection scope of the present invention.

Claims (10)

1. An energy storage device, comprising: the intelligent energy storage system comprises a cabinet body (1) and an energy storage converter (5), wherein a PCS (personal communication System) installation assembly (2), an air outlet assembly (3) and an upper outlet assembly (4) are respectively arranged at the top of the cabinet body (1), and the energy storage converter (5) is arranged on the PCS installation assembly (2);

The air outlet assembly (3) comprises: -a first channel (303), the first channel (303) being adapted to direct an air flow from the direction of the energy storage converter (5) outwards;

The upper outlet assembly (4) comprises: the wire outlet box (6), be equipped with line concentration hole (601) between wire outlet box (6) and the cabinet body (1), run through on wire outlet box (6) and have wire outlet hole (602), line concentration hole (601) and wire outlet hole (602) link up, so that the circuit on the cabinet body (1) can pass through line concentration hole (601) with wire outlet hole (602) is laid.

2. The energy storage device of claim 1, wherein the PCS mounting assembly (2) comprises: a support (201) and a fastening element (202) for forming a clamping space, in which the energy storage converter (5) is arranged.

3. The energy storage device according to claim 2, wherein the support (201) comprises: fixed part (2011), locate supporting part (2012) at fixed part (2011) top, energy storage converter (5) install in on supporting part (2012), fixed part (2011) install in the top of cabinet body (1), so that leave the space between energy storage converter (5) with the top of cabinet body (1).

4. An energy storage device according to claim 3, characterized in that the support (201) is provided in two and they are distributed in opposite positions, the fastening member (202) and the two supports (201) enclosing together the clamping space.

5. An energy storage device according to claim 3, characterized in that the air outlet assembly (3) comprises:

an inlet (301), said inlet (301) for introducing said gas flow;

An outlet (302), wherein the caliber of the outlet (302) is larger than that of the inlet (301), and the outlet (302) faces to the outside of the cabinet body (1);

Wherein the inlet (301) and the outlet (302) are through the first channel (303) to form a small to large air flow guiding structure.

6. The energy storage device according to claim 5, characterized in that one side of the outlet box (6) is provided with a detachable outlet mounting plate (7), the outlet holes (602) are provided in plurality, and they are evenly distributed on the outlet mounting plate (7).

7. Energy storage device according to claim 6, characterized in that the opposite sides of the top of the outlet box (6) are provided with guide plates (8) respectively, a circuit breaker fixing plate (9) is inserted between the guide plates (8) on both sides, wherein the opposite sides of the circuit breaker fixing plate (9) are abutted with the guide plates (8) adjacent to the opposite sides.

8. The energy storage device of claim 5, further comprising: the PCS installation component (2), the air-out component (3) and the upper outlet component (4) are all arranged on the supporting bottom plate (11), and the supporting bottom plate (11) is fixed with the top of the cabinet body (1).

9. The energy storage device of claim 8, further comprising:

the top cover (15) is hinged to the top of the cabinet body (1);

The driving assembly (16) is arranged between the top cover (15) and the cabinet body (1), and the driving assembly (16) is used for controlling the opening and closing of the top cover (15).

10. The energy storage device of claim 9, further comprising:

the cavity (101) is arranged in the cabinet body (1), and the cavity (101) is used for placing a plurality of energy storage batteries;

the refrigerating assembly (13) is arranged on the outer side of the cabinet body (1), and the refrigerating assembly (13) is used for conveying cooling gas to the cavity (101);

The ventilation assembly (14) is arranged at the top of the cavity (101), and the ventilation assembly (14) is used for absorbing hot air in the cavity (101) and conveying the hot air to the refrigeration assembly (13) for cooling.