Sealing structure, energy storage cabinet, and energy storage system

Abstract

A sealing structure (30), an energy storage cabinet (10), and an energy storage system (101). A cabinet door (100) of the energy storage cabinet (10) is provided with an opening (110), and the position of the opening (110) is configured to be arranged opposite to a heat exchange portion (300) of a temperature control device (20). The sealing structure (30) comprises a magnetic sealing member (500) configured in an annular shape, and the magnetic sealing member (500) is configured to be disposed around the opening (110) and to seal a gap between the cabinet door (100) and the temperature control device (20).

Description

Sealing structure, energy storage cabinet and energy storage system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to a Chinese patent application filed with the Patent Office of China on December 29, 2023, with application number 202311864539.7 and titled “Sealing structure, energy storage cabinet and energy storage system,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0003] The present disclosure relates to the technical field of energy storage equipment, and in particular to a sealing structure, an energy storage cabinet, and an energy storage system. Background Art

[0004] In the related art, an energy storage cabinet is an integrated energy storage device, and its internal space is filled with battery cell groups for energy storage. In order to keep the temperature of the battery cell groups in the energy storage cabinet within a suitable temperature range, a temperature control device (such as an air conditioner) can be installed in the energy storage cabinet to control the temperature of the battery cell groups. The temperature control device needs to exchange heat with the outside world during the temperature control process. Therefore, an opening is usually opened on the cabinet door of the energy storage cabinet to enable the temperature control device to exchange heat with the outside world through the opening.

[0005] However, in the related art, the sealing structure between the cabinet door and the temperature control device is complex and inconvenient to operate.

[0006] Summary of the Invention

[0007] The purpose of the present disclosure is to provide a sealing structure, an energy storage cabinet, and an energy storage system to solve the technical problem that when the cabinet door of the energy storage cabinet is closed, the sealing structure between the cabinet door and the temperature control device is complex and the operation is inconvenient.

[0008] To achieve the above-mentioned objectives, the present disclosure provides, in a first aspect, a sealing structure for use in an energy storage cabinet, wherein a cabinet door of the energy storage cabinet is provided with an opening, wherein the position of the opening is adapted to be arranged opposite to a heat exchange portion of a temperature control device, and wherein the sealing structure comprises: a magnetic seal configured in an annular shape, wherein the magnetic seal is adapted to be arranged around the opening and adapted to seal a gap between the cabinet door and the heat exchange portion.

[0009] Optionally, the sealing structure also includes: a first annular frame, suitable for being set on the cabinet door, the first annular frame constructing an insertion port for inserting the heat exchange part, and the position of the insertion port is arranged opposite to the opening; the magnetic seal is suitable for being arranged around the insertion port and suitable for sealing the gap between the first annular frame and the heat exchange part.

[0010] Optionally, the first annular frame has a first annular surface and a second annular surface suitable for cooperating with the heat exchange part; the first annular surface and the second annular surface are arranged at an angle, and the second annular surface is closer to the insertion port than the first annular surface; the first annular surface is sealed to the heat exchange part through the magnetic seal.

[0011] Optionally, the first annular surface and the second annular surface are arranged at an angle of 64°-116°.

[0012] Optionally, the first annular frame includes a first frame body and a second frame body connected to each other, the first frame body has the first annular surface, and the second frame body has the second annular surface.

[0013] Optionally, the first annular frame also has a third annular surface suitable for cooperating with the heat exchange part, the first annular surface is connected to one end of the second annular surface, and the third annular surface is connected to one end of the second annular surface away from the first annular surface; the third annular surface is arranged at an angle to the second annular surface, and the third annular surface is closer to the insertion port than the second annular surface.

[0014] Optionally, the third annular surface is arranged at an angle of 89°-91° to the second annular surface.

[0015] Optionally, the first annular surface and the third annular surface are parallel.

[0016] Optionally, the sealing structure also includes a first seal; the first seal is an annular member, suitable for being arranged around the insertion port; wherein the first seal is suitable for sealing the gap between the third annular surface and the heat exchange part, and / or, the first seal is suitable for sealing the gap between the second annular surface and the heat exchange part.

[0017] Optionally, the magnetic seal and the first seal are both configured to be compressibly deformed, and the compression stroke of the magnetic seal is greater than the compression stroke of the first seal.

[0018] Optionally, the first sealing member is a foam sealing member.

[0019] Optionally, the first annular frame includes a first frame body, a second frame body, and a third frame body connected in sequence, the first frame body has the first annular surface, the second frame body has the second annular surface, and the third frame body has the third annular surface.

[0020] Optionally, the magnetic seal includes an outer sleeve and a magnetic component; the outer sleeve has a cavity inside, and the magnetic component is arranged in the cavity; the outer sleeve has a first connecting surface and a second connecting surface relative to each other, the first connecting surface is suitable for connecting to the first annular frame, and the magnetic component is located on the side of the cavity close to the second connecting surface, so that the second connecting surface is suitable for magnetic connection to the heat exchange part.

[0021] Optionally, the outer casing includes a first connecting wall, a first side wall, a second connecting wall and a second side wall connected in sequence; the first connecting wall, the first side wall, the second connecting wall and the second side wall enclose and define the cavity; the first connecting wall is opposite to the second connecting wall, and the first connecting surface is provided on the side of the first connecting wall facing away from the second connecting wall, and the second connecting surface is provided on the side of the second connecting wall facing away from the first connecting wall; at least a portion of the first side wall is configured as a serrated structure, and at least a portion of the second side wall is configured as a serrated structure.

[0022] Optionally, the magnetic seal includes a first part, a second part, a third part and a fourth part; the first part, the second part, the third part and the fourth part jointly define an annular part arranged around the insertion port, and the first part, the second part, the third part and the fourth part all include the outer sleeve and the magnetic part.

[0023] Optionally, the sealing structure further includes a second sealing member, and the second sealing member is suitable for sealing the gap between the cabinet door and the cabinet body.

[0024] Optionally, the magnetic seal and the second seal are both configured to be compressibly deformed, and the compression stiffness of the magnetic seal is smaller than the compression stiffness of the second seal.

[0025] Optionally, the magnetic seal and the second seal are both configured to be compressibly deformed, and the compression stroke of the magnetic seal is greater than the compression stroke of the second seal.

[0026] Optionally, a drain port is provided at the lower end of the first annular frame; the drain port is adapted to communicate with a sealing gap, wherein the sealing member is the gap between the first annular frame and the heat exchange portion.

[0027] In a second aspect, the present disclosure provides an energy storage cabinet, which includes a cabinet body, a cabinet door movably arranged on the cabinet body, and a sealing structure as described above; a temperature control device is installed in the cabinet body, and the cabinet body is provided with the insertion port. When the cabinet door is in a closed state, the heat exchange part of the temperature control device is plugged into the insertion port, and the magnetic seal seals the gap between the first annular frame and the heat exchange part.

[0028] Optionally, the sealing structure includes a first annular frame provided on the cabinet door, the first annular frame forming an insertion port for inserting the heat exchange portion, and the insertion port is arranged opposite to the opening;

[0029] A second annular frame is circumferentially arranged around the outer surface of the heat exchange portion, and the second annular frame is suitable for being arranged around the insertion port; and the magnetic seal is suitable for sealing the gap between the first annular frame and the second annular frame.

[0030] Optionally, the first annular frame has a first annular surface, a second annular surface and a third annular surface suitable for cooperating with the heat exchange part; the first annular surface is opposite to the second annular frame, the second annular surface is opposite to the circumferential side surface of the heat exchange part, and the third annular surface is opposite to the axial end surface of the heat exchange part.

[0031] In a third aspect, the present disclosure provides an energy storage system, which includes a plurality of the above-mentioned energy storage cabinets, wherein the plurality of energy storage cabinets are electrically connected.

[0032] Through the above technical solution, when the cabinet door is closed, the magnetic properties of the magnetic seal are used to adsorb the cabinet door and the temperature control device (such as the heat exchange part) to achieve the connection between the cabinet door and the temperature control device and the sealing of the gap between the cabinet door and the temperature control device (such as the heat exchange part), thereby achieving rapid sealing of the gap between the cabinet door and the heat exchange part, easy operation, and simplifying the structure of the sealing structure.

[0033] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0035] FIG1 is a schematic structural diagram of an energy storage cabinet provided by an exemplary embodiment of the present disclosure with the cabinet door open.

[0036] FIG2 is a schematic exploded view of the structure of an energy storage cabinet provided in an exemplary embodiment of the present disclosure.

[0037] FIG3 is a front schematic diagram of an energy storage cabinet provided by an exemplary embodiment of the present disclosure, wherein a grid structure of a heat exchange portion is shown.

[0038] FIG4 is a schematic diagram of the cross-sectional structure of FIG3 taken along line AA.

[0039] FIG5 is a partial enlarged view of point A in FIG4 .

[0040] FIG6 is a partial enlarged view of point B in FIG4 .

[0041] FIG7 is a schematic diagram of a cross-sectional structure of a magnetic seal provided in accordance with an exemplary embodiment of the present disclosure.

[0042] FIG8 is a partial enlarged view of point C in FIG1 .

[0043] FIG9 is a structural block diagram of an energy storage system provided by an exemplary embodiment of the present disclosure, wherein the number of energy storage cabinets may be two or more, and here, two energy storage cabinets are schematically shown. DETAILED DESCRIPTION

[0044] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0045] In the description of the present disclosure, it should be understood that the terms "upper" and "lower" and the like, indicating orientations or positional relationships, are defined based on the drawing orientation of the accompanying drawings (e.g., FIG3 ), and are intended solely to facilitate the description of the present disclosure and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, specific orientation structure, or operation. Therefore, they should not be construed as limitations on the present disclosure. Furthermore, the terms "inside" and "outside" refer to the inside and outside of the corresponding structural outlines. Furthermore, the terms "first" and "second" and the like are used solely to distinguish one element from another and do not convey sequentiality or importance.

[0046] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "disposed," "connected," "connected," and "installed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections via an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on specific circumstances.

[0047] In the prior art, energy storage cabinets house battery cells for energy storage and temperature control devices. However, after openings are created in the cabinet door for heat exchange between the temperature control devices and the outside world, a gap exists between the cabinet door and the temperature control devices, weakening the cabinet's dust and water resistance.

[0048] In view of this, as shown in Figures 1 to 8, the present disclosure provides, in a first aspect, a sealing structure 30 for an energy storage cabinet 10. The sealing structure 30 is applied to the energy storage cabinet 10. The cabinet door of the energy storage cabinet 10 is provided with an opening 110, which is positioned to be opposite to the heat exchange portion 300 of the temperature control device 20. The sealing structure 30 includes an annular magnetic seal 500, which is adapted to be arranged around the opening 110 and to seal the gap between the cabinet door 100 and the temperature control device 20 (e.g., the heat exchange portion 300).

[0049] Through the above technical solution, when the cabinet door 100 is closed, the magnetic properties of the magnetic seal 500 are utilized to attract the cabinet door 100 and the temperature control device 20, thereby achieving a connection between the cabinet door 100 and the temperature control device 20 and sealing the gap between the cabinet door 100 and the temperature control device 20 (such as the heat exchange unit 300). This achieves rapid sealing of the gap between the cabinet door and the temperature control device 20 (such as the heat exchange unit 300), facilitates operation, and simplifies the structure of the entire sealing structure 30. The magnetic seal 500 helps ensure dustproof performance within the energy storage cabinet 10 and, to a certain extent, also ensures water resistance.

[0050] It should be noted that in the above solution, the opening 110 on the cabinet door 100 connects the inner and outer sides of the cabinet door 100. The opening 110 can be composed of a single hole-shaped structure provided on the cabinet door 100, or can be composed of a combination of multiple hole-shaped structures provided on the cabinet door 100. This embodiment does not impose any specific restrictions on this. In addition, in some optional embodiments, a grille, mesh panel, or other structure can be provided at the end of the opening 110 close to the outer side of the cabinet door 100.

[0051] In addition, it can be understood that the position of the opening 110 is suitable for being arranged opposite to the heat exchange portion 300 of the temperature control device 20, including the position of the opening 110 being arranged directly opposite to the heat exchange portion 300 of the temperature control device 20 and the position of the opening 110 being arranged offset from the heat exchange portion 300 of the temperature control device 20. Direct arrangement means that when the cabinet door 100 is closed, the projection of the entire heat exchange portion 300 on the cabinet door 100 is located within the opening 110, and the entire heat exchange portion 300 can be connected to the outside of the energy storage cabinet through the opening 110 for overall heat exchange. Offset arrangement means that when the cabinet door 100 is closed, a portion of the projection of the heat exchange portion 300 on the cabinet door 100 is located within the opening 110, and a portion of the heat exchange portion 300 can be connected to the outside of the energy storage cabinet through the opening 110 for partial heat exchange. When the cabinet door 100 is closed and the projection of the entire heat exchange part 300 on the cabinet door 100 is located within the opening 110, the end of the heat exchange part 300 of the temperature control device 20 can be inserted into the opening 110, extended out of the opening 110, or not inserted into the opening 110. This disclosure does not impose any specific restrictions on this.

[0052] In some optional embodiments, the sealing structure 30 also includes: a first annular frame 400, suitable for being set on the cabinet door 100, the first annular frame 400 is configured to construct an insertion port 401 for inserting the temperature control device 20 (such as the heat exchange part 300), and the position of the insertion port 401 is arranged relative to the opening 110; the magnetic seal 500 is suitable for being arranged around the insertion port 401, and is suitable for sealing the gap between the first annular frame 400 and the temperature control device 20.

[0053] Since the insertion port 401 constructed by the first annular frame 400 is opposite to the opening 110, after the cabinet door 100 of the energy storage cabinet 10 is closed, the temperature control device 20 can be inserted into the insertion port 401. Since the magnetic seal 500 is arranged around the insertion port 401, after the temperature control device 20 (such as the heat exchange part 300) is inserted into the insertion port 401, the magnetic seal 500 can simultaneously connect the first annular frame 400 and the circumferential wall of the temperature control device 20, so that the magnetic seal 500 can seal the gap between the first annular frame 400 and the temperature control device 20, so that the gap between the first annular frame 400 and the temperature control device 20 cannot be connected to the opening 110, thereby achieving a sealed connection between the cabinet door 100 and the temperature control device 20.

[0054] It is understood that in some optional embodiments, as shown in FIG1 , after the temperature control device 20 is inserted through the insertion port 401, the entire heat exchange portion 300 on the temperature control device 20 is also inserted into the insertion port 401, so that the heat exchange portion 300 can communicate with the outside of the energy storage cabinet through the insertion port 401 for heat exchange. Of course, in some other optional embodiments, after the temperature control device 20 is inserted through the insertion port 401, only a portion of the heat exchange portion 300 on the temperature control device 20 can be inserted into the insertion port 401.

[0055] The temperature control device 20 may include but is not limited to an air conditioner, a fan, etc. When the temperature control device 20 is an air conditioner, the heat exchange unit 300 may be a heat exchanger.

[0056] In addition, it should be pointed out that in the above solution, a magnetic seal 500 is used to achieve sealing. The component magnetically attracted by the magnetic seal 500 is made of a metal material that can produce a magnetic attraction with the magnetic seal 500. The metal material includes but is not limited to stainless steel, iron, and a permanent magnet. The magnetic seal 500 can be fixed on the first annular frame 400 and magnetically fixed to the heat exchange part 300; the magnetic seal 500 can also be fixed on the heat exchange part 300 and magnetically fixed to the first annular frame 400; the magnetic seal 500 can also be magnetically fixed to both the heat exchange part 300 and the first annular frame 400. This disclosure does not impose specific restrictions on this.

[0057] In one embodiment provided by the present disclosure, the magnetic seal 500 is fixed on the first annular frame 400 .

[0058] To further improve the dust and water resistance of the energy storage cabinet 10, in some optional embodiments, the first annular frame 400 has a first annular surface 411 and a second annular surface 421 adapted to mate with the heat exchange unit 300. The first annular surface 411 and the second annular surface 421 are arranged at an angle, with the second annular surface 421 being closer to the insertion port 401 than the first annular surface 411. The first annular surface 411 is sealed to the heat exchange unit 300 via a magnetic seal 500.

[0059] After the heat exchange portion 300 of the temperature control device 20 is inserted into the insertion port 401, a first gap is formed between the first annular surface 411 and the heat exchange portion 300, and a second gap is formed between the second annular surface 421 and the heat exchange portion 300. The second annular surface 421 is set closer to the insertion port 401 than the first annular surface 411, so that external dust, liquid and other substances will first pass through the first gap before reaching the second gap. The magnetic seal 500 is sealed with the first annular surface 411 and the heat exchange portion 300. Therefore, external dust, liquid and other substances will first pass through the first gap before reaching the magnetic seal 500. The first annular surface 411 and the second annular surface 421 are arranged at an angle, so that the first gap and the second gap are also arranged at an angle. As a result, dust, liquid, and other substances entering the first gap need to turn before reaching the magnetic seal 500. This prevents the liquid from directly eroding the magnetic seal 500, further improving the waterproof performance of the sealing structure 30 and the waterproof level of the energy storage cabinet 10.

[0060] It should be noted that the first annular surface 411 and the second annular surface 421 are arranged at an angle, which means that the first annular surface 411 and the second annular surface 421 are not on the same plane. The first annular surface 411 and the second annular surface 421 can be connected, that is, one end of the first annular surface 411 and the second annular surface 421 are connected, or the second annular surface 421 and the second annular surface 421 can be separated, that is, an intermediate surface is provided between the first annular surface 411 and the second annular surface 421, and the first annular surface 411 and the second annular surface 421 are both connected to the intermediate surface.

[0061] Regarding the specific angles of the first annular surface 411 and the second annular surface 421, in some optional embodiments, the first annular surface 411 and the second annular surface 421 are arranged at 64°-116°. Within this angle range, better waterproof performance can be achieved between the cabinet door 100 and the heat exchange portion 300 of the temperature control device 20.

[0062] It should be noted that the angle between the first annular surface 411 and the second annular surface 421 is the angle α shown in Figure 5. The more specific angle selection of the first annular surface 411 and the second annular surface 421 can be set accordingly according to the shape of the air conditioner heat exchange portion 300. In some optional embodiments, the first annular surface 411 and the second annular surface 421 can be specifically perpendicular to each other.

[0063] Regarding the specific structure of the first annular frame 400 forming the first annular surface 411 and the second annular surface 421, in some optional embodiments, the first annular frame 400 may include a first frame body 410 and a second frame body 420 connected to each other, the first frame body 410 having the above-mentioned first annular surface 411, and the second frame body 420 having the above-mentioned second annular surface 421.

[0064] In order to further improve the waterproof performance between the cabinet door 100 and the heat exchange part 300 of the temperature control device 20, in some optional embodiments, the first annular frame 400 also has a third annular surface 431 suitable for cooperating with the heat exchange part 300, the first annular surface 411 is connected to one end of the second annular surface 421, and the third annular surface 431 is connected to the end of the second annular surface 421 away from the first annular surface 411; the third annular surface 431 is arranged at an angle to the second annular surface 421, and the third annular surface 431 is closer to the insertion port 401 than the second annular surface 421.

[0065] The third annular surface 431 forms a third gap between the third annular surface 431 and the heat exchange unit 300. The third annular surface 431 is closer to the insertion port 401 than the second annular surface 421, forcing dust, liquid, and other substances to pass through the third gap, the second gap, and the first gap before reaching the magnetic seal 500. The third gap and the second gap are arranged at an angle, further preventing liquid from directly impacting the magnetic seal 500 and improving the waterproof performance between the cabinet door 100 and the heat exchange unit 300 of the temperature control device 20.

[0066] Regarding the specific angle between the third annular surface 431 and the second annular surface 421, in some optional embodiments, the third annular surface 431 and the second annular surface 421 are arranged at 89°-91°. Within this angle range, better waterproof performance is achieved between the cabinet door 100 and the heat exchange portion 300 of the temperature control device 20.

[0067] It should be noted that the angle formed between the third annular surface 431 and the second annular surface 421 is the angle β shown in Figure 5. The more specific angle selection of the first annular surface 411 and the second annular surface 421 can be set accordingly according to the shape of the air conditioner heat exchange portion 300. In some optional embodiments, the third annular surface 431 and the second annular surface 421 can be specifically perpendicular to each other.

[0068] In some optional embodiments, the first annular surface 411 can be parallel to the third annular surface 431. This arrangement not only facilitates the processing of the first annular frame 400, but also allows for interoperability with the heat exchange unit 300. For example, in the following embodiment, after the cabinet door 100 is closed, the first annular surface 411 can be aligned with and interoperate with the axial end surface of the heat exchange unit 300, the second annular surface 421 can be aligned with and interoperate with the circumferential side surface of the heat exchange unit 300, and the first annular surface 411 can interoperate with other components fixed to the circumferential side surface of the heat exchange unit 300.

[0069] In order to further improve the waterproof performance, in some optional embodiments, the sealing structure 30 also includes a first seal 600, which is an annular member suitable for being arranged around the insertion port 401; wherein, the first seal 600 is suitable for sealing the gap between the third annular surface 431 and the heat exchange part 300, and / or, the first seal 600 is suitable for sealing the gap between the second annular surface 421 and the heat exchange part 300.

[0070] Since external matter needs to pass through the third gap formed between the third annular surface 431 and the heat exchange portion 300 and the second gap formed between the second annular surface 421 and the heat exchange portion 300 in order to reach the location of the magnetic seal 500, the provision of the first seal 600 can seal the first gap and / or the second gap, further improving the sealing performance between the door frame and the heat exchange portion 300 of the temperature control device 20, and enhancing the waterproof and dustproof level of the energy storage cabinet 10.

[0071] It should be noted that in the above solution, the first seal 600 can be fixed to the first annular frame 400 and pressed against the heat exchange portion 300 to achieve a seal; the magnetic seal 500 can also be fixed to the heat exchange portion 300 and pressed against the first annular frame 400 to achieve a seal. This disclosure does not impose any specific restrictions on this.

[0072] In one embodiment provided in the present disclosure, the first sealing member 600 is fixed on the heat exchange portion 300 .

[0073] In order to ensure that both the magnetic seal 500 and the first seal 600 can be compressed and sealed when the cabinet door 100 is closed. In an optional embodiment of the present disclosure, the magnetic seal 500 and the first seal 600 are both constructed to be able to be compressed and deformed, and the compression stroke of the magnetic seal 500 is greater than the compression stroke of the first seal 600. In this way, in the process of closing the cabinet door 100, it can be set that the magnetic seal 500 seals the gap between the first annular frame 400 and the temperature control device 20 before the first seal 600, so that the sealing of the first annular frame 400 and the temperature control device 20 by the magnetic seal 500 is prioritized. In addition, the magnetic seal 500 and the first seal 600 are both able to be compressed and deformed, so in the process of compression and deformation of the magnetic seal 500, the magnetic seal 500 and the first seal 600 can both be in better contact and seal with the first annular frame 400 and the temperature control device 20.

[0074] The material of the first sealing member 600 can be a foam seal, a vulcanized seal, or other seals, and this disclosure does not impose any specific restrictions on this. In some optional embodiments provided by this disclosure, the first sealing member 600 can be a foam seal. Foam seals have the characteristics of low water absorption and excellent aging resistance, and can withstand direct impact of water flow.

[0075] Regarding the specific shape of the first annular frame 400, in an optional embodiment provided by the present disclosure, the first annular frame 400 includes a first frame body 410, a second frame body 420, and a third frame body 430 connected in sequence, the first frame body 410 having a first annular surface 411, the second frame body 420 having a second annular surface 421, and the third frame body 430 having a third annular surface 431. The first annular frame 400 composed of the first frame body 410, the second frame body 420, and the third frame body 430 can reduce the material used in the first annular frame 400 while achieving the sealing structure 30 and the sealing effect.

[0076] It should be noted that the first frame body 410 , the second frame body 420 and the third frame body 430 may be integrally formed, or may be fixed together by welding, clamping or other connection methods, and the present disclosure does not impose any specific limitation on this.

[0077] The present disclosure does not limit the specific structure of the magnetic seal, which will be described in detail below with reference to FIG. 7 .

[0078] As shown in Figure 7, the magnetic seal 500 includes an outer sleeve 510 and a magnetic component 520; the outer sleeve 510 has a cavity 501 inside, and the magnetic component 520 is arranged in the cavity 501; the outer sleeve 510 has a first connecting surface 5111 and a second connecting surface 5131 relative to each other, the first connecting surface is suitable for connecting to the first annular frame 400, and the magnetic component 520 is located on the side of the cavity 501 close to the second connecting surface 5131, so that the second connecting surface 5131 is suitable for magnetic connection with the heat exchange part 300.

[0079] On the one hand, the outer kit 510 provides a mounting base for the magnetic component 520. On the other hand, when the outer kit 510 is elastic, it can provide the required compression stroke for the magnetic seal. When the magnetic seal 500 is compressed, the outer kit 510 can undergo elastic deformation.

[0080] Regarding the cross-sectional shape of the magnetic seal 500, in some optional embodiments, the outer casing 510 includes a first connecting wall 511, a first side wall 512, a second connecting wall 513 and a second side wall 514 connected in sequence; the first connecting wall 511, the first side wall 512, the second connecting wall 513 and the second side wall 514 enclose and define a cavity 501; the first connecting wall 511 is opposite to the second connecting wall 513, and the side of the first connecting wall 511 facing away from the second connecting wall 513 is provided with the above-mentioned first connecting surface 5111, and the side of the second connecting wall 513 facing away from the first connecting wall 511 is provided with the above-mentioned second connecting surface 5131; at least a portion of the first side wall 512 is constructed as a serrated structure, and at least a portion of the second side wall 514 is constructed as a serrated structure.

[0081] The first connecting wall 511 can be used to connect the first surface of the first annular frame 400, and the second connecting wall 513 can be used to connect the heat exchange part 300. The provision of the first connecting wall 511 and the second connecting wall 513 can achieve surface contact between the magnetic seal 500 and the first annular frame 400 and the heat exchange part 300, thereby increasing the sealing area and improving the sealing effect. The first side wall 512 and the second side wall 514 are at least partially constructed as a serrated structure, so that the first side wall 512 and the second side wall 514 can be compressed and deformed and easy to compress. Of course, in some optional embodiments, the first side wall 512 and the second side wall 514 can also be constructed as an arc-shaped surface, which can also make the first side wall 512 and the second side wall 514 easy to compress to a certain extent.

[0082] In some optional embodiments, as shown in Figure 1, the magnetic seal 500 includes a first part 530, a second part 540, a third part 550 and a fourth part 560, and the first part 530, the second part 540, the third part 550 and the fourth part 560 jointly define an annular member arranged around the insertion port 401, and the first part 530, the second part 540, the third part 550 and the fourth part 560 all include an outer sleeve 510 and a magnetic member 520.

[0083] The above-mentioned magnetic seal 500 is formed by splicing the first part 530, the second part 540, the third part 550 and the fourth part 560 in sequence. This arrangement makes it more convenient to fix the magnetic seal 500 on the first annular frame 400 or the heat exchange part 300. At the same time, it also enables the magnetic seal 500 to be correspondingly arranged around the openings 110 on different cabinet doors 100.

[0084] After the cabinet door 100 is closed on the cabinet body 200 , in order to improve the sealing between the cabinet door 100 and the cabinet body 200 , in some optional embodiments, the sealing structure 30 further includes a second sealing member 700 , which is suitable for sealing the gap between the cabinet door 100 and the cabinet body 200 .

[0085] It should be pointed out that the second sealing member 700 can be fixed on the cabinet door 100 and sealed the gap between the cabinet door 100 and the cabinet body 200 by being pressed against the cabinet body 200; the second sealing member 700 can also be fixed on the cabinet body 200 and sealed the gap between the cabinet door 100 and the cabinet door 100 by being pressed against the cabinet body. This disclosure does not make any specific restrictions on this.

[0086] In an optional embodiment provided by the present disclosure, the second sealing member 700 is fixed on the cabinet 200 .

[0087] In order to achieve smooth closing of the cabinet door 100, in some optional embodiments, the magnetic seal 500 and the second seal 700 are both constructed to be capable of compression deformation, and the compression stiffness of the magnetic seal 500 is less than the compression stiffness of the second seal 700. Compression stiffness refers to the amount of deformation of an object under a unit force, and the compression stiffness can be obtained by the formula F=KX, where K is the compression stiffness, F is the force applied to the object, and X is the amount of deformation that occurs after the object is compressed. Under the same other conditions, when different objects are subjected to the same force F, the object with a larger compression stiffness K will produce a smaller deformation variable X.

[0088] Furthermore, it should be noted that, under the same applied force F, the object's compression stiffness can be adjusted by adjusting its shape and material. Taking the magnetic seal 500 as an example, the compression stiffness of the outer sleeve 510 can be adjusted by adjusting the density of the serrated structure of the first sidewall 512 and the second sidewall 514 of the outer sleeve 510, adjusting the areas of the first connecting surface 5111 and the second connecting surface 5131 of the outer sleeve 510, and changing the material of the outer sleeve 510.

[0089] In order to ensure reliable compression of the magnetic seal 500 when the cabinet door 100 is closed, in some optional embodiments, the magnetic seal 500 and the second seal 700 are both constructed to be compressibly deformed, and the compression stroke of the magnetic seal 500 is greater than the compression stroke of the second seal 700.

[0090] In order to avoid liquid accumulation in the gap between the first annular frame 400 and the heat exchange part 300, in some optional embodiments, as shown in Figure 8, a drain outlet 440 is provided at the lower end of the first annular frame 400; the drain outlet 440 is suitable for communicating with the sealing gap, wherein the sealing member is the gap between the first annular frame 400 and the heat exchange part 300.

[0091] The drain port 440 can drain the liquid entering the gap between the first annular frame 400 and the heat exchange portion 300 to the outside of the energy storage cabinet 10 to avoid accumulation of liquid in the gap.

[0092] It is understood that if the liquid needs to be discharged outside the energy storage cabinet 10, the water outlet end of the drain port 440 is directed toward the outside of the energy storage cabinet 10. Furthermore, to achieve dustproof performance between the cabinet door 100 and the heat exchange unit 300, in some optional embodiments, the water inlet end of the drain port 440 may be disposed on the second annular surface 421 or the third annular surface 431.

[0093] Based on the aforementioned sealing structure 30 of the energy storage cabinet 10, the present disclosure further provides an energy storage cabinet 10, comprising a cabinet body 200, a cabinet door 100 movably mounted on the cabinet body 200, and the aforementioned sealing structure 30 of the energy storage cabinet 10. A temperature control device 20 is mounted within the cabinet body 200, and an insertion port 401 is provided on the cabinet body 200. When the cabinet door 100 is closed, the heat exchange portion 300 of the temperature control device 20 is plugged into the insertion port 401, and a magnetic seal 500 seals the gap between the first annular frame 400 and the heat exchange portion 300.

[0094] By disposing the temperature control device 20 within the cabinet 200, the temperature of the interior space of the cabinet 200 can be controlled by the temperature control device 20. When a battery pack is installed in the cabinet 200, the temperature of the battery pack in the cabinet 200 can be controlled. In addition, the defects of deformation and damage of the cabinet door 100 or the inability to close the cabinet door 100 caused by fixing the temperature control device 20 on the cabinet door 100 can be avoided. The above-mentioned magnetic seal 500 can seal the gap between the first seal 600 and the heat exchange unit 300, thereby sealing the heat exchange unit 300 and the first seal 600, and thus sealing the cabinet door 100 and the temperature control device 20.

[0095] In some optional embodiments, the sealing structure 30 includes a first annular frame 400 arranged on the cabinet door 100, and the first annular frame 400 is configured to form an insertion port 401 for inserting the heat exchange unit 300, and the position of the insertion port 401 is arranged opposite to the opening 110; a second annular frame 800 is circumferentially arranged around the outer surface of the heat exchange unit 300, and the second annular frame 800 is suitable for being arranged around the insertion port 401; the magnetic seal 500 is suitable for sealing the gap between the first annular frame 400 and the second annular frame 800.

[0096] By setting a second annular frame 800 around the outer surface of the heat exchange part 300, in some cases where the heat exchange part 300 cannot directly cooperate with the magnetic seal 500, the cabinet door 100 and the temperature control device 20 can be sealed by cooperating with the magnetic seal 500 through the second annular frame 800.

[0097] It should be pointed out that the heat exchange part 300 cannot directly cooperate with the magnetic seal 500, including but not limited to: the position of the heat exchange part 300 cannot cooperate with the magnetic seal 500, and the material of the heat exchange part 300 cannot be adsorbed by the magnetic seal 500.

[0098] Regarding the more specific positional relationship between the first seal 600 and the heat exchange part 300, in some optional embodiments, the first annular frame 400 has a first annular surface 411, a second annular surface 421 and a third annular surface 431 suitable for cooperating with the heat exchange part 300; the first annular surface 411 is opposite to the second annular frame 800, the second annular surface 421 is opposite to the circumferential side surface of the heat exchange part 300, and the third annular surface 431 is opposite to the axial end face of the heat exchange part 300.

[0099] The third annular surface 431 opposes the end surface of the heat exchange unit 300, while the second annular surface 421 opposes the circumferential side surface of the heat exchange unit 300. Therefore, the third gap formed between the third annular surface 431 and the heat exchange unit 300 is oriented parallel to the direction of extension of the end surface of the heat exchange unit 300. External liquid cannot directly enter this third gap at an angle perpendicular to the end surface of the radiator, thereby improving waterproof performance to a certain extent. Furthermore, the second annular surface 421 opposes the circumferential side surface of the radiator to form a second gap, while the first annular surface 411 opposes the second annular frame 800 to form a third gap. The angles between the first and second gaps, and between the second and third gaps, form a generally Z-shaped channel, further preventing liquid from entering the energy storage cabinet 10 through the gap between the first annular frame 400 and the heat exchange unit 300 and coming into contact with the battery cell pack.

[0100] Based on the above energy storage cabinet 10 , as shown in FIG9 , the present disclosure further provides an energy storage system 101 . The energy storage system 101 includes a plurality of the above energy storage cabinets 10 , and the plurality of energy storage cabinets are electrically connected to each other.

[0101] The electrical connection between the multiple energy storage cabinets 10 can be a series connection, a parallel connection, or a mixed series-parallel connection, and this disclosure does not impose any specific restrictions on this.

[0102] The preferred embodiments of the present disclosure are described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple variations can be made to the technical solution of the present disclosure, and these simple variations all fall within the scope of protection of the present disclosure.

[0103] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0104] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A sealing structure (30) is applied to an energy storage cabinet (10), and is characterized in that an opening (110) is provided on a cabinet door (100) of the energy storage cabinet (10), and the position of the opening (110) is adapted to be oppositely arranged with a heat exchange part (300) of a temperature control device (20); the sealing structure (30) includes: a magnetic adsorption seal (500) configured as a ring, which is adapted to be arranged around the opening (110) and is adapted to seal a gap between the cabinet door (100) and the temperature control device (20).

2. The sealing structure (30) according to claim 1, wherein, The sealing structure (30) further includes: a first ring frame (400), which is adapted to be arranged on the cabinet door (100), and the first ring frame (400) constructs an insertion port (401) for inserting the temperature control device (20), and the position of the insertion port (401) is oppositely arranged with the opening (110); the magnetic adsorption seal (500) is adapted to be arranged around the insertion port (401) and is adapted to seal a gap between the first ring frame (400) and the temperature control device (20).

3. The sealing structure (30) according to claim 2, wherein, The first ring frame (400) has a first ring surface (411) and a second ring surface (421) adapted to cooperate with the heat exchange part (300); the first ring surface (411) and the second ring surface (421) are arranged at an angle, and the second ring surface (421) is closer to the insertion port (401) than the first ring surface (411); the first ring surface (411) is hermetically connected to the heat exchange part (300) through the magnetic adsorption seal (500).

4. The sealing structure (30) according to claim 3, characterized in that, The first ring surface (411) and the second ring surface (421) are arranged at 64° - 116°.

5. The sealing structure (30) according to claim 3 or 4, characterized in that, The first ring frame (400) further has a third ring surface (431) adapted to cooperate with the heat exchange part (300), the first ring surface (411) is connected to one end of the second ring surface (421), and the third ring surface (431) is connected to the end of the second ring surface (421) far from the first ring surface (411); the third ring surface (431) and the second ring surface (421) are arranged at an angle, and the third ring surface (431) is closer to the insertion port (401) than the second ring surface (421).

6. The sealing structure (30) according to claim 5, wherein, The third ring surface (431) and the second ring surface (421) are arranged at 89° - 91°.

7. The sealing structure (30) according to claim 5 or 6, characterized in that, The first ring surface (411) and the third ring surface (431) are parallel.

8. The sealing structure (30) according to any one of claims 5-7, characterized in that, The sealing structure further includes a first seal (600); the first seal (600) is a ring-shaped part and is adapted to be arranged around the insertion port (401); wherein, the first seal (600) is adapted to seal a gap between the third ring surface (431) and the heat exchange part (300), and / or, the first seal (600) is adapted to seal a gap between the second ring surface (421) and the heat exchange part (300).

9. The sealing structure (30) according to claim 8, characterized in that, Both the magnetic seal (500) and the first seal (600) are configured to be compressible and deformable, and the compression stroke of the magnetic seal (500) is greater than that of the first seal (600).

10. The sealing structure (30) according to claim 8 or 9, characterized in that, The first seal (600) is a foamed seal.

11. The sealing structure according to any one of claims 5-10, characterized in that, The first annular frame (400) includes a first frame body (410), a second frame body (420), and a third frame body (430) connected in sequence. The first frame body (410) has the first annular surface (411), the second frame body (420) has the second annular surface (421), and the third frame body (430) has the third annular surface (431).

12. The sealing structure (30) according to any one of claims 1-11, characterized in that, The magnetic seal (500) includes a jacket (510) and a magnetic member (520); The interior of the jacket (510) has a cavity (501), and the magnetic member (520) is disposed within the cavity (501) ; The jacket (510) has opposite first connection surfaces (5111) and second connection surfaces (5131). The first connection surfaces (5111) are adapted to be connected to the cabinet door (100), and the magnetic member (520) is located on a side of the cavity (501) close to the second connection surfaces (5131) such that the second connection surfaces (5131) are adapted to be magnetically connected to the heat exchange portion (300).

13. The sealing structure (30) according to claim 12, wherein, The jacket (510) includes a first connection wall (511), a first side wall (512), a second connection wall (513), and a second side wall (514) connected in sequence; The first connection wall (511), the first side wall (512), the second connection wall (513), and the second side wall (514) enclose and define the cavity (501); The first connection wall (511) is opposite to the second connection wall (513). The first connection surface (5111) is disposed on a side of the first connection wall (511) facing away from the second connection wall (513), and the second connection surface (5131) is disposed on a side of the second connection wall (513) facing away from the first connection wall (511); At least a portion of the first side wall (512) is configured as a serrated structure, and at least a portion of the second side wall (514) is configured as a serrated structure.

14. The sealing structure (30) according to claim 12 or 13, characterized in that, The magnetic seal (500) includes a first portion (530), a second portion (540), a third portion (550), and a fourth portion (560); The first portion (530), the second portion (540), the third portion (550), and the fourth portion (560) together define an annular member arranged around the opening (110). The first portion (530), the second portion (540), the third portion (550), and the fourth portion (560) each include the jacket (510) and the magnetic member (520).

15. The sealing structure (30) according to any one of claims 1-14, characterized in that, The sealing structure (30) further includes a second seal (700), and the second seal (700) is adapted to seal the gap between the cabinet door (100) and the cabinet body (200).

16. The sealing structure (30) according to claim 15, characterized in that, Both the magnetic seal (500) and the second seal (700) are configured to be compressively deformable, and the compression stiffness of the magnetic seal (500) is less than that of the second seal (700).

17. The sealing structure (30) according to claim 15 or 16, characterized in that Both the magnetic seal (500) and the second seal (700) are configured to be compressively deformable, and the compression stroke of the magnetic seal (500) is greater than that of the second seal (700).

18. The sealing structure (30) according to any one of claims 2-17, characterized in that, A drain port (440) is provided at the lower end of the first annular frame (400); The drain port (440) is adapted to communicate with a sealing gap, wherein the sealing gap is the gap between the first annular frame (400) and the heat exchange part (300).

19. A energy storage cabinet (10), characterized in that, It includes a cabinet body (200), a cabinet door (100) movably arranged on the cabinet body (200), and a sealing structure (30) according to any one of claims 1-18; A temperature control device (20) is installed in the cabinet body (200), and an opening (110) is provided on the cabinet body (200). When the cabinet door (100) is in a closed state, the magnetic seal (500) seals the gap between the cabinet door (100) and the temperature control device (20).

20. The energy storage cabinet (10) according to claim 19, characterized in that, The sealing structure (30) includes a first annular frame (400) provided on the cabinet door (100), and the first annular frame (400) defines an insertion opening (401) for the heat exchange part (300) to be inserted into, and the position of the insertion opening (401) is arranged opposite to the opening (110); A second annular frame (800) is circumferentially wound around the outer surface of the heat exchange part (300), and the second annular frame (800) is adapted to be arranged around the insertion opening (401); The magnetic seal (500) is adapted to seal the gap between the first annular frame (400) and the second annular frame (800).

21. The energy storage cabinet (10) according to claim 20, characterized in that, The first annular frame (400) has a first annular surface (411), a second annular surface (421), and a third annular surface (431) adapted to cooperate with the heat exchange part (300); The first annular surface (411) faces the second annular frame (800), the second annular surface (421) faces the circumferential side surface of the heat exchange part (300), and the third annular surface (431) faces the axial end surface of the heat exchange part (300).

22. An energy storage system (101), characterized in that, It includes a plurality of energy storage cabinets (10) according to any one of claims 19-21, and the plurality of energy storage cabinets (10) are electrically connected to each other.

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