Energy storage device and energy storage system comprising same

Abstract

Disclosed in the present application are an energy storage device and an energy storage system comprising same. The energy storage device comprises a battery, a cabinet, an air conditioner and a magnetic sealing member, wherein the cabinet comprises a cabinet door and a cabinet body, one side of the cabinet body being open, the cabinet door being arranged on the open side of the cabinet body, the cabinet body and the cabinet door jointly defining an accommodating cavity, the accommodating cavity accommodating the battery, and an opening being formed in the cabinet door; the air conditioner is arranged in the accommodating cavity, and the air conditioner is arranged opposite the opening; and the magnetic sealing member is arranged around the periphery of the opening, so as to seal a gap between the cabinet door and the air conditioner. The energy storage device provided in the present application can prevent a water body outside the cabinet from entering the air conditioner along a gap between the air conditioner and the cabinet, thereby improving the waterproofness of the air conditioner; and the manner of connection between the magnetic sealing member and the air conditioner is simple, thereby facilitating operation.

Description

Energy storage device and energy storage system

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on December 29, 2023, with application number 202323662909.7 and application name “Energy Storage Device and Energy Storage System Thereof”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of energy storage devices, and in particular to an energy storage device and an energy storage system thereof. Background Art

[0003] Since the air conditioner needs to exchange heat with the external atmospheric environment, the air inlet and outlet of the air conditioner must be exposed outside the battery cabinet. In the related art, a rubber sealing strip is often used in conjunction with a cabinet lock or bolts to achieve a seal between the air conditioner and the battery cabinet. The sealing principle is: the compression force generated by tightening the bolts or locking the cabinet lock is used to compress the sealing strip to deform, and the rebound force of the sealing strip enables the sealing strip to be tightly clamped between the cabinet door and the air conditioner to achieve a seal between the cabinet door and the air conditioner. However, each sealing point between the cabinet door and the air conditioner requires a bolt or cabinet lock to cooperate with the sealing strip. When the air conditioner needs to be maintained, the bolts or door locks need to be removed, making maintenance operations on the air conditioner difficult. Summary of the Invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present application is to provide an energy storage device that prevents water outside the cabinet from entering the air conditioner through the gap between the air conditioner and the cabinet, thereby improving the water resistance of the air conditioner. The connection between the magnetic seal and the air conditioner is simple and easy to operate.

[0005] Another object of the present application is to provide an energy storage system comprising the above energy storage device.

[0006] According to an embodiment of the first aspect of the present application, an energy storage device includes: a battery, a cabinet, the cabinet including a cabinet body and a cabinet door, one side of the cabinet body is open, the cabinet door is arranged on the open side of the cabinet body, the cabinet body and the cabinet door jointly define a accommodating cavity, the accommodating cavity accommodates the battery, and the cabinet door is formed with the opening; an air conditioner, the air conditioner is arranged in the accommodating cavity, and the air conditioner is arranged opposite to the opening; and a magnetic seal, the magnetic seal is arranged around the periphery of the opening to seal the gap between the cabinet door and the air conditioner.

[0007] According to the energy storage device of the embodiment of the present application, a magnetic seal is provided between the air conditioner and the cabinet, and the gap between the air conditioner and the cabinet is filled with the magnetic seal, thereby preventing water outside the cabinet from entering the air conditioner along the gap between the air conditioner and the cabinet, thereby improving the waterproofness of the air conditioner, and the connection method between the magnetic seal and the air conditioner is simple and easy to operate.

[0008] According to some embodiments of the present application, an air-conditioning flange is provided on the air conditioner; when the cabinet door is in a closed position, a side surface of the cabinet door facing the air-conditioning flange and the air-conditioning flange are sealed by the magnetic seal.

[0009] According to some embodiments of the present application, the side wall of the cabinet door facing the air conditioner is a first side wall, and the magnetic seal includes an elastic member and a first magnetic member, one end of the elastic member is connected to the first side wall, and the first magnetic member is arranged at the other end of the elastic member. When the cabinet door is in a closed position, the first magnetic member is adsorbed on the air conditioner flange.

[0010] According to some embodiments of the present application, the side wall of the cabinet door facing the air conditioner is a first side wall, and the magnetic seal includes: an elastic member and a first magnetic member, one end of the elastic member is connected to a side surface of the air conditioner flange facing the first side wall, and the first magnetic member is arranged at the other end of the elastic member. When the cabinet door is in a closed position, the first magnetic member is adsorbed on the first side wall.

[0011] According to some embodiments of the present application, the magnetic seal is an annular seal, and the magnetic seal is arranged around the circumference of the opening.

[0012] According to some embodiments of the present application, the elastic member is a hollow structure, and the first magnetic member is disposed inside the elastic member.

[0013] According to some embodiments of the present application, the elastic member is provided with a plurality of folds, and the elastic member is stretchable between the first side wall and the air-conditioning flange through the plurality of folds.

[0014] According to some embodiments of the present application, the air-conditioning flange has magnetic attraction, and the air-conditioning flange is a second magnetic attraction component.

[0015] According to some embodiments of the present application, a second side wall is provided at the opening, and the second side wall is located on the side of the first side wall away from the air-conditioning flange; the energy storage device also includes a first seal, and the first seal is provided between the side surface of the second side wall facing the air conditioner and the air conditioner.

[0016] According to some embodiments of the present application, the energy storage device further includes an extension portion, one end of the extension portion is connected to the first side wall, the other end of the second extension portion is connected to the second side wall, and along the extension direction of the extension portion, the first side wall and the second side wall are spaced apart.

[0017] According to some embodiments of the present application, the first sealing member is a foam sealing strip.

[0018] According to some embodiments of the present application, the energy storage device further includes a second sealing member, which is suitable for sealing between the edge of the cabinet door and the cabinet body.

[0019] According to some embodiments of the present application, a compression stroke of the first sealing member is greater than a compression stroke of the second sealing member.

[0020] According to some embodiments of the present application, the compression stroke of the magnetic seal is greater than the compression stroke of the second seal.

[0021] According to some embodiments of the present application, the stiffness of the magnetic seal is less than the stiffness of the second seal.

[0022] According to some embodiments of the present application, at least one of the first seal and the second seal is an annular seal.

[0023] According to some embodiments of the present application, the second sealing member is a rubber sealing strip.

[0024] According to an embodiment of the second aspect of the present application, an energy storage system includes: multiple energy storage devices, which are electrically connected to each other, and the energy storage devices are energy storage devices according to the embodiment of the first aspect of the present application.

[0025] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] FIG1 is a schematic diagram of an energy storage device according to an embodiment of the present application;

[0028] FIG2 is an exploded view of an energy storage device according to an embodiment of the present application;

[0029] FIG3 is a sealing diagram of an energy storage device according to an embodiment of the present application;

[0030] FIG4 is an enlarged view of the circled portion A in FIG3 ;

[0031] FIG5 is an enlarged view of the circled portion B in FIG3 ;

[0032] FIG6 is a schematic diagram of a magnetic seal of an energy storage device according to an embodiment of the present application;

[0033] FIG7 is a partial schematic diagram of an elastic member of an energy storage device according to an embodiment of the present application;

[0034] FIG8 is a schematic diagram of an air conditioner with an energy storage device according to an embodiment of the present application;

[0035] FIG9 is a schematic diagram of an energy storage system according to an embodiment of the present application.

[0036] Reference numerals:

[0037] 100. Energy storage device; 1. Cabinet; 11. Cabinet body; 12. Cabinet door; 121. First side wall; 122. Opening; 123: Second side wall; 124: Extension; 13. Accommodating cavity; 2. Battery; 3. Air conditioner; 31. Air conditioner flange (second magnetic member); 4. Magnetic seal; 41. Elastic member; 421. Pleated portion; 42. First magnetic member; 5. First seal; 6. Second seal. DETAILED DESCRIPTION

[0038] The energy storage device 100 according to an embodiment of the present application is described below with reference to FIG. 1 to FIG. 8 .

[0039] As shown in FIG. 1 to FIG. 8 , the energy storage device 100 according to an embodiment of the present application includes a battery 2 , a cabinet 1 , an air conditioner 3 , and a magnetic seal 4 .

[0040] Specifically, the cabinet 1 includes a cabinet body 11 and a cabinet door 12. One side of the cabinet body 11 is open, for example, one side in the thickness direction of the cabinet body 11 is open. The cabinet door 12 is arranged on the open side of the cabinet body 11. The cabinet body 11 and the cabinet door 12 together define a storage cavity 13. The storage cavity 13 accommodates the battery 2. An opening 122 is formed on the cabinet door 12. The air conditioner 3 is arranged in the storage cavity 13, and the air conditioner 3 is arranged opposite to the opening 122. A magnetic seal 4 is arranged around the periphery of the opening 122 to seal the gap between the cabinet door 12 and the air conditioner 3. The magnetic seal 4 is located at the opening 122.

[0041] For example, in the examples of Figures 1 and 2 , the air conditioner 3 is located within the accommodating cavity 13, so that the cabinet 1 provides protection for the air conditioner 3, preventing dynamic water flow from contacting the air conditioner 3 and causing corrosion or damage to the air conditioner 3. A magnetic seal 4 is provided around the circumference of the air conditioner 3, filling the gap between the air conditioner 3 and the cabinet door 12. This further prevents water from entering the air conditioner 3 through the gap between the cabinet 1 and the cabinet door 12, further enhancing the water resistance of the air conditioner 3, thereby improving the operational stability of the air conditioner 3 and extending its service life.

[0042] During actual use, one end of the magnetic seal 4 can be connected to the cabinet 1 by bonding, and the magnetic seal 4 can be arranged along the circumference of the opening 122, and the other end of the magnetic seal 4 can be connected to the air conditioner 3 by magnetic attraction, thereby realizing the installation of the magnetic seal 4 between the air conditioner 3 and the cabinet door 12, while meeting the waterproof and sealing requirements of the air conditioner 3, simplifying the connection method between the magnetic seal 4 and the air conditioner 3.

[0043] Along the height direction of the cabinet 1 (for example, the up and down direction in Figure 1), the air conditioner 3 is arranged at the upper part of the accommodating cavity 13, and the battery 2 is arranged at the lower part of the accommodating cavity 13, so as to reduce the distance between the air conditioner 3 and the battery 2, thereby reducing the length of the wiring harness laid in the accommodating cavity 13, reducing the risk of mutual interference between the wiring harnesses, and also avoiding the generation of static electricity in the wiring harness during use, thereby improving the safety of use of the air conditioner 3 and the battery 2.

[0044] The cabinet door 12 is movable between an open position that opens the open side of the cabinet body 11 and a closed position that closes the open side of the cabinet body 11, that is, the cabinet door 12 is rotatably connected to the cabinet body 11. When the cabinet door 12 is in the open position, the open side of the cabinet body 11 is in an open state, thereby facilitating the installation of the air conditioner 3 and the battery 2 in the accommodating cavity 13, or performing repair and maintenance operations on the air conditioner 3 and the battery 2. When the cabinet door 12 is in the closed position, the open side of the cabinet body 11 is blocked by the cabinet door 12, and the cabinet door 12 can effectively shield the air conditioner 3 and the battery 2, thereby improving the waterproof performance of the air conditioner 3 and the battery 2. When the cabinet door 12 switches between the open position and the closed position, the magnetic seal 4 can avoid damage to the surface of the cabinet door 12 and the air conditioner 3, thereby improving the stability of the magnetic seal 4, the cabinet door 12 and the air conditioner 3.

[0045] According to the energy storage device 100 of the embodiment of the present application, a magnetic seal 4 is provided between the air conditioner 3 and the cabinet door 12, and the gap between the air conditioner 3 and the cabinet door 12 is filled with the magnetic seal 4, thereby preventing water outside the cabinet 1 from entering the air conditioner 3 along the gap between the air conditioner 3 and the cabinet 1, thereby improving the waterproofness of the air conditioner 3, and the connection method between the magnetic seal 4 and the air conditioner 3 is simple and easy to operate.

[0046] According to some embodiments of the present application, referring to Figures 1 to 4 in conjunction with Figure 8 , an air conditioner flange 31 is provided on the air conditioner 3. When the cabinet door 12 is in the closed position, a magnetic seal 4 is formed between the side surface of the cabinet door 12 facing the air conditioner flange 31 and the air conditioner flange 31. The air conditioner flange 31 is provided on the outer peripheral surface of the air conditioner 3, and the air conditioner flange 31 extends in a direction away from the air conditioner 3. Thus, when the magnetic seal 4 is sealed between the cabinet door 12 and the air conditioner flange 31, the magnetic seal 4 can be clamped between the cabinet door 12 and the air conditioner flange 31, thereby ensuring the sealing between the cabinet door 12 and the air conditioner 3.

[0047] According to some embodiments of the present application, referring to Figures 1-4, in conjunction with Figures 6 and 7, the side wall of the cabinet door 12 facing the air conditioner 3 is a first side wall 121. The magnetic seal 4 includes an elastic member 41 and a first magnetic member 42. One end of the elastic member 41 is connected to the first side wall 121, and the first magnetic member 42 is disposed at the other end of the elastic member 41. When the cabinet door 12 is in the closed position, the first magnetic member 42 is attracted to the air conditioner flange 31. The end of the elastic member 41, distal from the first magnetic member 42, is connected to the side surface of the cabinet door 12 facing the air conditioner flange 31 to position the magnetic seal 4. Specifically, the magnetic seal 4 is fixed to the cabinet door 12, preventing movement during use and improving the stability of the magnetic seal 4 on the cabinet door 12, thereby enhancing the stability of the magnetic seal 4 during use. The other end of the elastic member 41, on which the first magnetic member 42 is disposed, is magnetically connected to the air conditioner flange 31, thereby enabling the magnetic seal 4 to seal between the cabinet door 12 and the air conditioner flange 31.

[0048] When the cabinet door 12 is in the closed position, the first magnetic member 42 is attracted to the air conditioning flange 31, ensuring a tight seal between the cabinet door 12 and the air conditioner 3. When the cabinet door 12 is switched from the closed position to the open position, the first magnetic member 42 separates from the air conditioning flange 31, allowing the cabinet body 11 to be opened, facilitating inspection and maintenance of the air conditioner 3.

[0049] According to other embodiments of the present application, one end of the elastic member 41 is connected to a side surface of the air conditioning flange 31 facing the first side wall 121, and a first magnetic member 42 is provided at the other end of the elastic member 41. When the cabinet door 12 is in the closed position, the first magnetic member 42 is attracted to the air conditioning flange 31. The end of the elastic member 41 away from the first magnetic member 42 is connected to a side surface of the air conditioning flange 31, that is, the magnetic seal 4 is fixed to the air conditioning flange 31, preventing the magnetic seal 4 from moving during use, improving the stability of the magnetic seal 4 on the air conditioning flange 31, and thus improving the stability of the magnetic seal 4 in use. The other end of the elastic member 41 provided with the first magnetic member 42 is connected to the first side wall 121 by magnetic attraction, so that the magnetic seal 4 can be sealed between the cabinet door 12 and the air conditioning flange 31.

[0050] Optionally, the magnetic seal 4 is an annular seal, which is arranged circumferentially around the opening 122 so that the magnetic seal 4 completely fills the gap between the cabinet door 12 and the air conditioner 3, meeting the waterproof and sealing requirements of the air conditioner 3.

[0051] 6 and 7 , the elastic member 41 may be hollow, which may increase the elasticity of the elastic member 41. The first magnetic member 42 is disposed within the elastic member 41 to protect the first magnetic member 42 from damage, thereby ensuring the connection reliability between the magnetic seal 42 and the air conditioning flange 31.

[0052] According to some embodiments of the present application, the elastic member 41 is provided with a plurality of pleated portions 421, and the elastic member 41 is retractable between the first side wall 121 and the air conditioning flange 31 (for example, in the up and down direction in FIG6 ) through the plurality of pleated portions 421. In the description of the present application, "plurality" means two or more. As shown in FIG6 and FIG7 , six pleated portions 421 are formed on the elastic member 41, three of the six pleated portions 421 are provided on one side of the width direction of the elastic member 41 (for example, in the left and right direction in FIG6 ), and the other three of the six pleated portions 421 are provided on the other side of the width direction of the elastic member 41. As a result, the elasticity of the elastic member 41 is increased, so that the elastic member 41 can fully fill the gap between the air conditioner 3 and the cabinet door 12, further improving the installation stability of the magnetic seal 4 between the cabinet 1 and the air conditioner 3. At the same time, the provision of the pleated portions 421 enables the elastic member 41 to fully compress or recover deformation.

[0053] Optionally, the air conditioning flange 31 is a second magnetic component. For example, the air conditioning flange 31 can be made of magnetic steel material to cooperate with the magnetic seal 4 to generate magnetic force, so that the magnetic seal 4 can be stably adsorbed on the air conditioning flange 31.

[0054] According to some embodiments of the present application, referring to Figures 1 to 3 in combination with Figure 5, a portion of the air conditioner 3 extends out of the opening 122, and an air inlet and an air outlet are formed on the air conditioner 3. The air inlet and the air outlet are arranged along the height direction of the air conditioner 3, and the air inlet and the air outlet are opposite to the opening 122, so that the air inlet and the air outlet of the air conditioner 3 are exposed.

[0055] A second sidewall 123 is provided at the opening 122. The second sidewall 123 is located on the side of the first sidewall 121 away from the air conditioning flange 31. The energy storage device 100 also includes a first seal 5, which is provided between the second sidewall 123 and the air conditioner 3. The first seal 5 blocks the jet of water, preventing the jet of water from impacting the magnetic seal 4, thereby protecting the magnetic seal 4. The size of the opening 122 is adapted to the size of the side of the air conditioner 3 facing the cabinet door 12, so that the first seal 5 can be installed between the second sidewall 123 and the air conditioner 3, thereby improving the sealing between the second sidewall 123 and the air conditioner 3.

[0056] During use, the magnetic seal 4 and the first seal 5 form two layers of sealing protection to ensure the sealing and waterproof properties of the air conditioner 3. The first seal 5 acts as a first waterproof layer to prevent the jet of water from directly eroding the magnetic seal 4, effectively alleviating the pressure of the jet of water. The first seal 5 can be an annular seal, which is beneficial to increase the completeness of the seal between the second side wall 123 and the air conditioner 3. The magnetic seal 4 acts as a second waterproof layer to prevent moisture and dust from entering the air conditioner 3 and to prevent the water flow without water pressure after passing through the first waterproof layer from penetrating into the air conditioner 3. In other words, the force acting on the air conditioner 3 is the sum of the magnetic attraction force generated by the magnetic seal 4 and the compression rebound force of the first seal 5, thereby achieving reliable sealing of the air conditioner 3.

[0057] Furthermore, referring to Figures 3 and 4 , the energy storage device 100 further includes an extension portion 124. One end of the extension portion 124 is connected to the first side wall 121, and one end of the extension portion 124 is connected to the second side wall 123. Along the extension direction of the extension portion 124, the first side wall 121 and the second side wall 123 are spaced apart. The second side wall 123 and the extension portion 124 form an L-shape. The extension portion 124 is used to separate the first side wall 121 and the second side wall 123 from the surface of the air conditioner 3. The first sealing member 5 fills the gap between the second side wall 123 and the air conditioner 3, further enhancing the sealing and waterproofing between the cabinet door 12 and the air conditioner 3. The combination of the extension portion 124 and the second side wall 123 helps reduce the weight of the cabinet door 12, thereby improving the installation stability of the cabinet door 12 on the open side of the cabinet body 11.

[0058] According to some embodiments of the present application, the first sealing member 5 is a foam sealing strip. Foam sealing strips have advantages such as low water absorption, good elasticity, good resistance to compression deformation, excellent aging resistance, and excellent flame retardancy. Using a foam sealing strip as the first sealing member 5 helps to improve the sealing and waterproofing between the cabinet door 12 and the air conditioner 3.

[0059] According to some embodiments of the present application, the energy storage device 100 further includes a second seal 6, which is adapted to seal between the edge of the cabinet door 12 and the cabinet body 11. Referring to Figures 1 and 2 in conjunction with Figures 3 and 5, a second seal 6 is provided between the cabinet door 12 and the cabinet body 11. The second seal 6 may be an annular seal to seal between the cabinet door 12 and the cabinet body 11, thereby preventing water from entering the accommodating cavity 13 through the gap between the cabinet door 12 and the cabinet body 11, thereby improving the safety of the air conditioner 3 and the battery 2. Furthermore, the second seal 6 can also prevent the magnetic seal 4 from being eroded by jets of water, thereby increasing the service life of the magnetic seal 4.

[0060] When the cabinet door 12 is in the closed position, the cabinet door 12 and the cabinet body 11 can be locked using a locking device such as a linkage lock. The locking pressure generated by the locking device compresses the second seal 6 so that the second seal 6 is stably installed between the cabinet door 12 and the cabinet body 11, thereby improving the sealing stability between the cabinet door 12 and the cabinet body 11.

[0061] Furthermore, the compression stroke of the magnetic seal 4 is greater than the compression stroke of the second seal 6. Therefore, when the second seal 6 is compressed between the cabinet door 12 and the cabinet body 11, the magnetic seal 4 between the cabinet door 12 and the air conditioner 3 is also reliably compressed, thereby forming a reliable seal between the cabinet body 1 and the air conditioner 3.

[0062] According to some embodiments of the present application, the stiffness of the magnetic seal 4 is less than the stiffness of the second seal 6. Herein, stiffness refers to the ability of a material or structure to resist elastic deformation when subjected to force, and stiffness is a representation of the ease of elastic deformation of a material or structure, that is, under the same load, the greater the stiffness, the smaller the deformation. The stiffness of the magnetic seal 4 is made smaller, and the deformation of the magnetic seal 4 is effectively avoided, thereby improving the structural strength of the magnetic seal 4 and extending the service life of the magnetic seal 4. The magnetic force of the first magnetic member 42 of the magnetic seal 4 compensates for the problem of the smaller rebound force of the magnetic seal 4, so that the magnetic seal 4 can be stably arranged between the cabinet door 12 and the air conditioner 3.

[0063] The second seal 6 has a relatively small rigidity. When the cabinet door 12 is in the closed position, the second seal 6 can fully fill the gap between the edge of the cabinet door 12 and the cabinet body 11, thereby facilitating improving the sealing between the edge of the cabinet door 12 and the cabinet body 11.

[0064] Specifically, the rigidity of the magnetic seal 4 is less than that of the second seal 6, and the compression stroke of the magnetic seal 4 is greater than that of the second seal 6. When the second seal 6 is compressed between the cabinet door 12 and the cabinet body 11, the magnetic seal 4 between the cabinet door 12 and the air conditioner 3 is also reliably compressed, forming a reliable seal between the cabinet door 12 and the air conditioner 3 using both pressure and magnetic force.

[0065] Furthermore, at least one of the first seal 5 and the second seal 6 is an annular seal. That is, only the first seal 5 can be an annular seal, or only the second seal 6 can be an annular seal, or both the first seal 5 and the second seal 6 can be annular seals, to improve the sealing performance of the energy storage device 100.

[0066] According to some embodiments of the present application, the second sealing member 6 is a rubber sealing strip. Rubber sealing strips have advantages such as good thermal insulation, low water absorption, cushioning, temperature resistance, and sound absorption. Using a rubber sealing strip as the second sealing member 6 improves the sealing and waterproofing between the cabinet door 12 and the cabinet body 11 while reducing the cost of the second sealing member 6.

[0067] 9 , an energy storage system according to an embodiment of the second aspect of the present application includes a plurality of energy storage devices 100 , which are electrically connected to each other. The energy storage devices 100 are the energy storage devices 100 according to the embodiment of the first aspect of the present application.

[0068] According to the energy storage system of the embodiment of the present application, by adopting the above-mentioned energy storage device 100, the waterproofness of the energy storage system can be improved, thereby increasing the service life of the energy storage system.

[0069] Other structures and operations of the energy storage system according to the embodiments of the present application are known to those skilled in the art and will not be described in detail here.

[0070] In the description of the present application, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0071] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0072] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0073] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An energy storage device (100), comprising: a battery (2); a cabinet body (1), the cabinet body (1) includes a cabinet door (12) and a cabinet main body (11), one side of the cabinet main body (11) is open, the cabinet door (12) is arranged on the open side of the cabinet main body (11), the cabinet main body (11) and the cabinet door (12) jointly define an accommodation cavity (13), the accommodation cavity (13) accommodates the battery (2), and an opening (122) is formed on the cabinet door (12); an air conditioner (3), the air conditioner (3) is arranged in the accommodation cavity (13), and the air conditioner (3) is arranged opposite to the opening (122); a magnetic sealing member (4), the magnetic sealing member (4) is arranged around the periphery of the opening (122) to seal the gap between the cabinet door (12) and the air conditioner (3).

2. The energy storage device (100) according to claim 1, wherein an air conditioner flange (31) is provided on the air conditioner (3); When the cabinet door (12) is in the closed position, the gap between the surface of the side of the cabinet door (12) facing the air conditioner flange (31) and the air conditioner flange (31) is sealed by the magnetic sealing member (4).

3. The energy storage device (100) according to claim 1, the side of the cabinet door (12) facing the air conditioner (3) is the first side wall (121), The magnetic sealing member (4) includes: an elastic member (41) and a first magnetic member (42), one end of the elastic member (41) is connected to the first side wall (121), the first magnetic member (42) is arranged at the other end of the elastic member (41), and when the cabinet door (12) is in the closed position, the first magnetic member (42) adsorbs to the air conditioner flange (31).

4. The energy storage device (100) according to claim 1, the side wall of the cabinet door (12) facing the air conditioner (3) is the first side wall (121), the magnetic sealing member (4) includes: an elastic member (41) and a first magnetic member (42), one end of the elastic member (41) is connected to the surface of the air conditioner flange (31) facing the first side wall (121), the first magnetic member (42) is arranged at the other end of the elastic member (41), and when the cabinet door (12) is in the closed position, the first magnetic member (42) adsorbs to the first side wall (121).

5. The energy storage device (100) according to claim 1, the magnetic sealing member (4) is an annular sealing member, and the magnetic sealing member (4) is arranged circumferentially around the opening (122).

6. The energy storage device (100) according to any one of claims 3-5, the elastic member (41) is a hollow structure, and the first magnetic member (42) is arranged inside the elastic member (41).

7. The energy storage device (100) according to any one of claims 3-5, wherein a plurality of corrugated portions (421) are provided on the elastic member (41), and the elastic member (41) is telescopic between the first side wall (121) and the air conditioner flange (31) through the plurality of corrugated portions (421).

8. The energy storage device (100) according to any one of claims 3-5, wherein the air conditioner flange (31) has a magnetic attraction force, and the air conditioner flange (31) is a second magnetic attracting member.

9. The energy storage device (100) according to any one of claims 3-5, wherein a second side wall is provided at the opening (122), and the second side wall is located on a side of the first side wall (121) away from the air conditioner flange (31); The energy storage device (100) further includes a first seal (5), and the first seal (5) is provided between a surface of the second side wall facing the air conditioner (3) and the air conditioner (3).

10. The energy storage device (100) according to claim 9, further comprising: An extension portion, one end of the extension portion is connected to the first side wall (121), and the other end of the extension portion is connected to the second side wall. Along the extension direction of the extension portion, the first side wall (121) and the second side wall are spaced apart.

11. The energy storage device (100) according to claim 9, wherein the first seal (5) is a foamed sealing strip.

12. The energy storage device (100) according to claim 1, wherein the energy storage device (100) further includes: A second seal (6), and the second seal (6) is adapted to be sealed between the edge of the cabinet door (12) and the cabinet body (11).

13. The energy storage device (100) according to claim 11, wherein the compression stroke of the magnetic attraction seal (4) is greater than the compression stroke of the second seal (6).

14. The energy storage device (100) according to claim 11, wherein the stiffness of the magnetic attraction seal (4) is less than the stiffness of the second seal (6).

15. The energy storage device (100) according to claim 11, wherein at least one of the first seal (5) and the second seal (6) is an annular seal.

16. The energy storage device (100) according to claim 11, wherein the second seal (6) is a rubber sealing strip.

17. An energy storage system, comprising: A plurality of energy storage devices (100), the plurality of energy storage devices (100) are electrically connected, and the energy storage device (100) is the energy storage device (100) according to any one of claims 1-16.

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