Energy storage device

Abstract

The utility model provides an energy storage device, which relates to the technical field of energy storage and comprises a shell, a first partition plate, a battery assembly, a direct-current assembly and an alternating-current assembly. The shell is provided with an accommodating space; the first partition plate is connected to the shell and divides the containing space into a first cavity and a second cavity in the horizontal direction. The battery assembly is installed in the first cavity. The direct current assembly is installed in the second cavity and electrically connected to the battery assembly. The alternating current assembly is mounted in the second cavity and is electrically connected to the battery assembly; the AC assembly is arranged far away from the first cavity relative to the DC assembly. According to the energy storage device provided by the embodiment of the utility model, the internal space of the energy storage device can be effectively utilized, and the integration level of the energy storage device is increased.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, and specifically to energy storage devices. Background Technology

[0002] In related technologies, with the promotion and utilization of new energy sources such as solar and wind power, energy storage technology has also developed. Energy storage devices are often used to store electrical energy so that the power grid can intelligently regulate the power. Existing energy storage devices store electrical energy through battery modules, and the battery modules receive or release electrical energy through a central control cabinet. Since the central control cabinet integrated into the energy storage device itself occupies a certain amount of space and affects the layout of the internal components, the integration level of the energy storage device is relatively low. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an energy storage device that can effectively utilize the internal space of the energy storage device and increase its integration.

[0004] The energy storage device according to a first aspect embodiment of the present invention includes:

[0005] The casing has accommodating space;

[0006] A first partition is connected to the housing and divides the accommodating space into a first chamber and a second chamber in the horizontal direction;

[0007] The battery assembly is installed in the first chamber;

[0008] A DC component is installed in the second chamber and electrically connected to the battery assembly;

[0009] An AC component is installed in the second chamber and electrically connected to the battery assembly;

[0010] The AC component is positioned away from the first chamber relative to the DC component.

[0011] The energy storage device according to the embodiments of this utility model has at least the following beneficial effects: the DC component and AC component electrically connected to the battery module can regulate the state of the battery module. A first partition connected to the housing horizontally divides the accommodating space into a first chamber and a second chamber, making the air parameters of the first chamber and the second chamber relatively independent, thereby reducing interference between the battery module installed in the first chamber and the DC component and AC component installed in the second chamber. The AC component is positioned away from the first chamber relative to the DC component. When the battery module needs to receive or release electrical energy, the AC component needs to be temporarily connected to the external power grid. Since the AC component, being farther from the first chamber than the DC component, is closer to the housing, it is easier for workers to draw wires from the AC component to connect to the external power grid. This makes it easier for the energy storage device to connect to external electrical equipment, and the length of the wires can be shortened, reducing the space occupied by the energy storage device and increasing its integration.

[0012] According to some embodiments of the present invention, the AC component includes a plurality of first terminals for electrically connecting the battery assembly, each of the first terminals having the same orientation, and the DC component includes a plurality of second terminals for electrically connecting the battery assembly, each of the second terminals having the same orientation, and the orientations of the first terminals and the second terminals being staggered.

[0013] According to some embodiments of the present invention, the orientation of the first wiring portion is opposite to that of the second wiring portion.

[0014] According to some embodiments of the present invention, the energy storage device further includes a liquid cooling component, which is installed in the accommodating space and includes a liquid cooling module and a pipe module. The liquid cooling module is connected to the pipe module, and the pipe module is connected to the battery assembly. The liquid cooling module can pump coolant into the pipe module so that the coolant cools the battery assembly through the pipe module.

[0015] According to some embodiments of the present invention, the energy storage device further includes a second partition, which is connected to the first partition and the housing, and divides the second chamber into a third chamber and a fourth chamber. The DC component and the AC component are installed in the third chamber, and the liquid cooling module is installed in the fourth chamber.

[0016] According to some embodiments of the present invention, the third chamber and the fourth chamber are arranged in a direction parallel to the horizontal direction and perpendicular to the direction from the first chamber to the second chamber.

[0017] According to some embodiments of the present invention, the battery assembly includes a battery pack, the battery pack includes a heat dissipation pipe; the pipeline module further includes an outlet pipe, a cooling pipe and a return pipe, the cooling pipe includes a first cooling section and a second cooling section, the outlet pipe, the first cooling section, the heat dissipation pipe, the second cooling section and the return pipe are connected in sequence, the liquid cooling module is connected to the outlet pipe and can pump coolant into the outlet pipe so that the coolant flows through the outlet pipe, the first cooling section, the heat dissipation pipe, the second cooling section and the return pipe in sequence.

[0018] According to some embodiments of the present invention, the return water pipe includes a high-temperature cooling section, which is housed within the third chamber.

[0019] According to some embodiments of the present invention, the energy storage device further includes a fan, which is installed in the third chamber and the air inlet of the fan faces the high-temperature cooling section.

[0020] According to some embodiments of the present invention, the housing is provided with a clearance hole communicating with the accommodating space, the clearance hole being adapted for a sensor for detecting air parameters within the accommodating space to pass through; the energy storage device further includes a seal, the seal being connected to the housing and covering the clearance hole, the seal being configured to be detachable from the housing.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 This is a front view of an energy storage device according to some embodiments of the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the second chamber of the energy storage device being opened;

[0025] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0026] Figure 4 In the view from above Figure 1 Schematic diagram of the spatial division of the medium-sized energy storage device;

[0027] Figure 5 In the view from above Figure 1 Schematic diagram of the liquid cooling assembly;

[0028] Figure 6 for Figure 1 Sectional view at point BB;

[0029] Figure 7 for Figure 6 A magnified view of a section at point C.

[0030] Figure label:

[0031] Energy storage device 10;

[0032] The housing 100, the accommodating space 110, the first chamber 111, the second chamber 112, the third chamber 1121, the fourth chamber 1122, and the clearance hole 120;

[0033] First partition 200;

[0034] Battery component 300, battery pack 310, heat pipe 311;

[0035] DC component 400, second wiring section 410, combiner module 420, monitoring module 430;

[0036] AC component 500, first wiring section 510, transformer module 520, power distribution module 530;

[0037] Liquid cooling component 600, liquid cooling module 610, pipe module 620, water outlet pipe 621, cooling pipe 622, first cooling section 6221, second cooling section 6222, return water pipe 623, high temperature cooling section 6231;

[0038] Second partition 700;

[0039] Fan 800;

[0040] Seal 900. Detailed Implementation

[0041] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0042] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0044] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0045] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Existing energy storage devices utilize the space inside a central control cabinet to house various electrical modules, such as busbar modules for collecting current from battery packs, transformer modules for regulating voltage, and power distribution modules for adjusting output current. The control cabinet protects the electrical modules from the external environment, extending their lifespan. However, the control cabinet occupies internal space, resulting in wasted space. Furthermore, the cabinet structure hinders the adjustment of the various electrical modules' positions, impedes wiring connections to modules and battery packs, and causes wiring to occupy even more internal space.

[0047] In view of this, please refer to Figures 1-7 As shown, this utility model proposes an energy storage device 10. Without departing from the inventive concept of this utility model, the energy storage device 10 of this utility model includes, but is not limited to, energy storage containers, energy storage cabinets, etc.

[0048] The energy storage device 10 of this utility model includes a housing 100, a first partition 200, a battery assembly 300, a DC assembly 400, and an AC assembly 500.

[0049] Please refer to Figure 1 , Figure 4 As shown, for the convenience of those skilled in the art, Figure 4The upper part of the housing 100, the battery assembly 300, the DC assembly 400, and the AC assembly 500 are not shown. The housing 100 has a housing space 110. The housing 100 can isolate the housing space 110 from the outside world, thereby ensuring that the air parameters (such as temperature, humidity, particulate matter concentration, etc.) of the housing space 110 remain stable, and thus ensuring the stability of various electrical components located in the housing space 110 during operation.

[0050] Without departing from the inventive concept of this utility model, those skilled in the art can provide terminals, holes or channels on the housing 100 so that the electrical module of the accommodating space 110 can be connected to the external power grid via wires.

[0051] The first partition 200 of this invention is connected to the housing 100, further dividing the accommodating space 110 horizontally into a first chamber 111 and a second chamber 112, thus isolating the second chamber 112 from the first chamber 111. Using the partition to separate the accommodating space 110 of the housing allows the air parameters of the first chamber 111 and the second chamber 112 to be relatively independent. In this invention, the battery assembly 300 is installed in the first chamber 111, while the DC component 400 and AC component 500 are both installed in the second chamber 112. Therefore, the heat generated by the DC component 400 and AC component 500 during operation is less likely to be conducted to the first chamber 111, thereby reducing the possibility of overheating of the battery assembly 300 in the first chamber 111 during operation.

[0052] Without departing from the inventive concept of this utility model, those skilled in the art can provide terminals, holes or channels on the first partition 200 so that the electrical modules of different chambers can be connected to each other by wires.

[0053] This invention divides the electrical module into two categories: a DC component 400 and an AC component 500. Both the DC component 400 and the AC component 500 are electrically connected to the battery component 300, and the state of the battery component 300 is regulated through this electrical connection. For example, please refer to... Figure 2 , Figure 3 As shown, in some embodiments, the DC component 400 includes a combiner module 420 and a monitoring module 430. Both the combiner module 420 and the monitoring module 430 regulate the state of the battery component 300 through DC current. The combiner module 420 can collect the current in the battery component 300 and output it externally, while the monitoring module 430 can collect information such as the voltage and current of the battery component 300 so that staff can query the state of the battery component 300. In some embodiments, the AC component 500 includes a transformer module 520 and a power distribution module 530. The transformer module 520 can transform the current input externally or output internally, and the power distribution module 530 can distribute the current input externally to the battery component 300.

[0054] The housing 100 and the first partition 200 of this invention provide a stable electrical environment for the DC component 400 and the AC component 500. Both the DC component 400 and the AC component 500 are directly housed in the second chamber 112, eliminating the need for storage within the central control cabinet. This results in the energy storage device 10 of this invention occupying less space and achieving a higher degree of integration, while ensuring that the housing space 110 can accommodate the battery component 300, the DC component 400, or the AC component 500.

[0055] Placing the DC component 400 and AC component 500 directly in the second chamber 112 could make the wires used to electrically connect the battery component 300, AC component 500, and DC component 400 more cluttered, increasing the overall space occupied by the energy storage device 10, affecting the efficiency of assembly, and reducing integration. Therefore, in this invention, the AC component 500 is positioned further away from the DC component 400 in the first chamber 111. When the battery component 300 needs to receive or release electrical energy, the AC component 500 needs to be temporarily connected to the external power grid. Since the AC component 500 is further away from the DC component 400 in the first chamber 111 than the DC component 400, it is closer to the housing 100. This makes it easier for workers to draw wires from the AC component 500 to connect to the external power grid, making it easier to connect the energy storage device 10 to external electrical equipment. The length of the wires can also be shortened, reducing the space occupied by the energy storage device 10 and increasing its integration. On the other hand, the wires used to connect the DC component 400 and the battery component 300 do not affect the wiring of the AC component 500, further reducing the clutter of the wires and further improving the integration of the energy storage device 10.

[0056] This invention does not impose any restrictions on the connection method between the AC component 500 and the external power grid. In some embodiments, the housing 100 is provided with a wiring portion, through which wires leading from the AC component 500 and wires leading from the external power grid are connected. In some embodiments, the housing 100 is provided with a wiring hole, through which wires leading from the AC component 500 are connected to the external power grid. In some embodiments, the housing 100 is provided with a wiring hole, through which wires leading from the external power grid are connected to the AC component 500.

[0057] Without departing from the inventive concept of this utility model, those skilled in the art can adjust the wiring positions of the DC component 400 and the AC component 500. Please refer to... Figure 2 , Figure 3 , Figure 4 As shown, where Figure 3 Only a portion of the second wiring section 410 of the DC component 400 and a portion of the first wiring section 510 of the AC component 500 are shown. Figure 4It shows Figure 3 In some embodiments, the structure of the housing 100 includes a DC component 400 comprising a plurality of first wiring portions 510 for electrically connecting to the battery component 300, each first wiring portion 510 having the same orientation. The DC component 400 also includes a plurality of second wiring portions 410 for electrically connecting to the battery component 300, each second wiring portion 410 having the same orientation. The orientation of the first wiring portions 510 and the second wiring portions 410 is the same. This embodiment facilitates that a worker standing in a specific position can simultaneously see both the first wiring portions 510 and the second wiring portions 410, allowing the worker to connect the first wiring portions 510 and the second wiring portions 410 from the same location. Specifically, in some embodiments, both the first wiring portions 510 and the second wiring portions 410 face rearward. A cabinet door is provided at the rear of the housing 100. When the cabinet door is opened, it allows the second chamber 112 to communicate with the outside, allowing a worker standing behind the second chamber 112 to directly connect the first wiring portions 510 and the second wiring portions 410.

[0058] As a preferred embodiment, in some embodiments, the orientation of the first wiring portion 510 and the orientation of the second wiring portion 410 are staggered. This design allows workers to directly determine the wiring position based on the orientation of the different wiring portions, reducing the possibility of incorrect wiring during the assembly of the energy storage device 10.

[0059] Based on the above embodiments, the orientation of the first wiring portion 510 and the second wiring portion 410 can be opposite, thereby minimizing the possibility of incorrect wiring during the assembly of the energy storage device 10. Exemplarily, in some embodiments, the first wiring portion 510 faces rearward, and the second wiring portion 410 faces forward. As a preferred embodiment, the orientation of both the first wiring portion 510 and the second wiring portion 410 is perpendicular to the direction from the first chamber 111 to the second chamber 112. The above scheme allows the first wiring portion 510 and the second wiring portion 410 to occupy space perpendicular to the direction from the first chamber 111 to the second chamber 112, reducing the space occupied by the housing 100 in the direction from the first chamber 111 to the second chamber 112. Exemplarily, in some embodiments, the first chamber 111 and the second chamber 112 are arranged in a left-right direction, with the first wiring portion 510 facing rearward and the second wiring portion 410 facing forward.

[0060] It should be noted that in the prior art, electrical modules are installed through a central control cabinet. The cabinet structure of the central control cabinet restricts the installation direction of the electrical modules. However, the embodiment of this utility model eliminates the central control cabinet, making it easier to adjust the orientation of the DC component 400 and the AC component 500.

[0061] Without departing from the inventive concept of this utility model, those skilled in the art can additionally add components to cool the battery assembly 300 in the first chamber 111, thereby stabilizing the temperature of the battery assembly 300 and extending its service life. In some embodiments, the energy storage device 10 further includes a fan 800 assembly. The air-cooling assembly is installed in the first chamber 111 and faces the battery assembly 300. The air-cooling assembly enables airflow in the first chamber 111, allowing the heat on the surface of the battery assembly 300 to be carried away by the flowing air, thus lowering the temperature of the battery assembly 300.

[0062] Please refer to Figure 4 , Figure 5 As shown, in some embodiments, the energy storage device 10 further includes a liquid cooling assembly 600, which is installed in the accommodating space 110 and includes a liquid cooling module 610 and a pipe module 620. The liquid cooling module 610 is connected to the pipe module 620, and the pipe module 620 is connected to the battery assembly 300. The liquid cooling module 610 can pump coolant into the pipe module 620 so that the coolant cools the battery assembly 300 through the pipe module 620. Compared with the air-cooled assembly, the liquid cooling assembly 600, by introducing coolant into the pipe module 620, enables the coolant to flow steadily along the extension direction of the pipe module 620, thereby cooling the battery assembly 300 more stably.

[0063] Without departing from the inventive concept of this utility model, those skilled in the art can provide holes or channels in the first partition 200 so that the pipe module 620 can pass through the first partition 200, so that the coolant can flow in the first chamber 111 and the second chamber 112.

[0064] Without departing from the inventive concept of this utility model, the location of the liquid cooling module 610 is not limited. As a preferred embodiment, please refer to... Figure 4 As shown, in some embodiments, the energy storage device 10 further includes a second partition 700, which is connected to the first partition 200 and the housing 100, and divides the second chamber 112 into a third chamber 1121 and a fourth chamber 1122. The DC component 400 and the AC component 500 are installed in the third chamber 1121, and the liquid cooling module 610 is installed in the fourth chamber 1122. Through this design, the first partition 200, the second partition 700, and the housing 100 can jointly seal the liquid cooling module 610 in the fourth chamber 1122, thereby reducing the possibility of the coolant from the liquid cooling module 610 flowing into the first chamber 111 and the third chamber 1121 in case of an accident, thus reducing the possibility of short circuits in the battery component 300, the DC component 400, and the AC component 500.

[0065] As a preferred option, please refer to Figure 4As shown, in some embodiments, the third chamber 1121 and the fourth chamber 1122 are arranged parallel to the horizontal direction and perpendicular to the direction from the first chamber 111 to the second chamber 112. The liquid cooling module 610 placed in the fourth chamber 1122 can utilize the space perpendicular to the direction from the first chamber 111 to the second chamber 112, reducing the space required for the energy storage device 10 in the direction from the first chamber 111 to the second chamber 112.

[0066] Without departing from the inventive concept of this utility model, those skilled in the art can provide terminals, holes, or channels on the first partition 200 or the second partition 700 so that the liquid cooling module 610 can be electrically connected to the battery assembly 300, the DC assembly 400, or the AC assembly 500 and receive electrical energy. Those skilled in the art can also provide holes or channels on the second partition 700 so that the pipe module 620 can pass through the second partition 700, so that the coolant can flow in the first chamber 111, the third chamber 1121, and the fourth chamber 1122.

[0067] Those skilled in the art can design the pipe module 620 to absorb heat from the battery assembly 300 with the coolant within the pipe module 620, thereby reducing the temperature of the battery assembly 300. In some embodiments, the pipe module 620 further includes an outlet pipe 621, a cooling pipe 622, and a return pipe 623 connected in sequence. The liquid cooling module 610 is connected to the outlet pipe 621 and can pump coolant into the outlet pipe 621, so that the coolant flows through the outlet pipe 621, the cooling pipe 622, and the return pipe 623 in sequence. The wall of the cooling pipe 622 is in contact with the battery assembly 300. The heat of the battery assembly 300 can be conducted to the wall of the cooling pipe 622. When the coolant flows through the outlet pipe 621, it can absorb the heat accumulated on the wall of the cooling pipe 622, thereby allowing the cooling pipe 622 to continue absorbing heat from the battery assembly 300, ultimately causing the temperature of the battery assembly 300 to decrease.

[0068] As a preferred option, please refer to Figure 4 , Figure 5 As shown, where Figure 5Only one battery pack 310 is shown. In some embodiments, the battery assembly 300 includes the battery pack 310, which includes a heat sink 311. The pipe module 620 also includes an outlet pipe 621, a cooling pipe 622, and a return pipe 623. The cooling pipe 622 includes a first cooling section 6221 and a second cooling section 6222. The outlet pipe 621, the first cooling section 6221, the heat sink 311, the second cooling section 6222, and the return pipe 623 are connected in sequence. The liquid cooling module 610 is connected to the outlet pipe 621 and can pump coolant into the outlet pipe 621 so that the coolant flows in sequence through the outlet pipe 621, the first cooling section 6221, the heat sink 311, the second cooling section 6222, and the return pipe 623. The heat from the battery pack 310 can be conducted to the wall of the heat sink 311. When the coolant flows through the heat sink 311, it can absorb the heat accumulated on the wall of the heat sink 311, which in turn allows the heat sink 311 to continue absorbing the heat from the battery pack 310, ultimately causing the temperature of the battery assembly 300 to drop. Since the coolant can flow directly into the battery pack 310 to absorb the heat from the battery pack 310, the efficiency of the coolant in absorbing heat is higher, which helps to accelerate the cooling speed of the battery assembly 300.

[0069] Please refer to Figure 5 As shown, in some embodiments, the battery assembly 300 includes multiple battery packs 310, each battery pack 310 being provided with a heat dissipation pipe 311. The pipe module 620 includes the same number of cooling pipes 622 as the battery packs 310. The first cooling section 6221 and the second cooling section 6222 of each cooling pipe 622 are connected to both ends of the heat dissipation pipe 311 of a battery pack 310. When the liquid cooling module 610 pumps coolant into the outlet pipe 621, the coolant is distributed to different cooling pipes 622 and flows through the heat dissipation pipes 311 of different battery packs 310, thereby dissipating heat from the battery packs 310.

[0070] The return water pipe 623 of this embodiment is used to collect the coolant that has cooled the battery assembly 300. In some embodiments, the return water pipe 623 is connected to the liquid cooling module 610, so the coolant in the return water pipe 623 flows back into the liquid cooling module 610 for re-cooling, and is used to cool the battery assembly 300 again. In some embodiments, the energy storage device 10 includes a liquid storage tank for collecting the coolant flowing out from the return water pipe 623.

[0071] Please refer to Figure 3 , Figure 5As shown, in some embodiments, the return water pipe 623 further includes a high-temperature cooling section 6231, which is housed within the third chamber 1121. The air in the third chamber 1121 accumulates heat generated by the DC component 400 and the AC component 500. The high-temperature cooling section 6231 housed in the third chamber 1121 can absorb the heat from the air in the third chamber 1121, so that the coolant can absorb the heat from the high-temperature cooling section 6231 when passing through it, thereby reducing the temperature of the third chamber 1121 and cooling the DC component 400 and the AC component 500.

[0072] Please refer to Figure 3 As shown, in some embodiments, the energy storage device 10 further includes a fan 800, which is mounted in the third chamber 1121 and has its air inlet facing the high-temperature cooling section 6231. The fan 800 of the energy storage device 10 enables airflow within the third chamber 1121, promoting faster dissipation of heat generated by the DC component 400 and the AC component 500.

[0073] In existing technologies, to maintain the stable electrical characteristics of energy storage devices, operators need to periodically measure the air parameters inside the casing. However, current measurement methods require operators to first open the door of the energy storage device and then allow sensors to enter the casing to collect data. Since the door of the energy storage device is also used to allow internal electrical modules to enter and exit, opening the door will cause significant interference from the external environment to the internal environment of the casing. This will alter the air parameters inside the casing, such as humidity and temperature, and thus affect the sensor's detection results.

[0074] In view of this, please refer to Figure 1 , Figure 6 , Figure 7 As shown, based on the above embodiments, in some embodiments, the housing 100 is provided with a clearance hole 120 communicating with the accommodating space 110, the clearance hole 120 being adapted for a sensor for detecting air parameters in the accommodating space 110 to pass through; the energy storage device 10 also includes a seal 900, the seal 900 being connected to the housing 100 and covering the clearance hole 120, the seal 900 being configured to be detachable from the housing 100.

[0075] When the seal 900 is connected to the housing 100, it covers the clearance hole 120, isolating the accommodating space 110 from the outside world. This ensures a stable electrical environment within the accommodating space 110, guaranteeing the stability of the DC component 400, AC component 500, and battery component 300 during operation. When the seal 900 is removed from the housing 100, the accommodating space 110 is connected to the outside world through the clearance hole 120. This allows the sensor to enter the accommodating space 110 through the clearance hole 120 and detect the air parameters within the accommodating space 110. This facilitates understanding of the electrical environment within the accommodating space 110 by personnel. Since the detection process no longer requires opening the door, and the clearance hole 120, through which the sensor passes, makes it less likely for the air in the accommodating space 110 to exchange with the outside air, the electrical environment of the accommodating space 110 remains stable during sensor measurements, resulting in more accurate air parameters obtained by the sensor. On the other hand, when a fire occurs in the containment space 110, the clearance hole 120, which is suitable for the sensor to pass through, makes it less likely for the air in the containment space 110 to exchange with the outside air. When the staff observes the containment space 110 through the clearance hole 120, it is less likely to aggravate the fire in the containment space 110, which is conducive to the control of the fire.

[0076] Based on the above-mentioned inventive concept, those skilled in the art can also provide multiple clearance holes 120 and corresponding sealing elements 900, so that different clearance holes 120 are respectively connected to the first chamber 111 and the second chamber 112, thereby enabling the sensor to detect the air parameters of the first chamber 111 and the second chamber 112.

[0077] It should be noted that the phrase "the clearance hole 120 is suitable for a sensor that can detect air parameters in the accommodating space 110 to pass through" mentioned in this utility model should be understood as the aperture of the clearance hole 120 being large enough for a sensor that can detect air parameters in the accommodating space 110 to pass through, so that the sensor can enter the accommodating space 110 through the clearance hole 120.

[0078] Exemplarily, in some embodiments, the housing 100 further includes a housing body and a rectangular door. The housing body has an opening communicating with the accommodating space 110 for allowing people and electrical modules to enter and exit, and the outline of the opening is adapted to the shape of the door. When the door is opened, the opening allows the accommodating space 110 to communicate with the outside. The aperture size of the clearance hole 120 in the above embodiments can be 0.05-0.2 times the width of the door. In other embodiments, the aperture size of the clearance hole 120 can be 1.1-2 times the maximum size of the sensor perpendicular to its own length, or it can be 1-10 mm larger than the maximum size of the sensor perpendicular to its own length. The clearance hole 120 in the above embodiments all allow the sensor to enter the accommodating space 110 through the clearance hole 120. However, the present invention is not limited to the above embodiments. Without departing from the inventive concept of the present invention, those skilled in the art can also determine the aperture size of the clearance hole 120 according to other dimensions of the energy storage device 10 or the sensor.

[0079] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. An energy storage device, characterized in that, include: The casing has accommodating space; A first partition is connected to the housing and divides the accommodating space into a first chamber and a second chamber in the horizontal direction; The battery assembly is installed in the first chamber; A DC component is installed in the second chamber and electrically connected to the battery assembly; An AC component is installed in the second chamber and electrically connected to the battery assembly; The AC component is positioned away from the first chamber relative to the DC component.

2. The energy storage device according to claim 1, characterized in that, The AC component includes a plurality of first terminals for electrically connecting the battery assembly, each of the first terminals having the same orientation. The DC component includes a plurality of second terminals for electrically connecting the battery assembly, each of the second terminals having the same orientation, and the orientations of the first terminals and the second terminals being staggered.

3. The energy storage device according to claim 2, characterized in that, The orientation of the first wiring portion is opposite to that of the second wiring portion.

4. The energy storage device according to claim 1, characterized in that, The energy storage device further includes a liquid cooling assembly installed in the accommodating space, comprising a liquid cooling module and a pipe module. The liquid cooling module is connected to the pipe module, and the pipe module is connected to the battery assembly. The liquid cooling module is capable of pumping coolant into the pipe module so that the coolant cools the battery assembly through the pipe module.

5. The energy storage device according to claim 4, characterized in that, The energy storage device further includes a second partition, which is connected to the first partition and the housing, and divides the second chamber into a third chamber and a fourth chamber. The DC component and the AC component are installed in the third chamber, and the liquid cooling module is installed in the fourth chamber.

6. The energy storage device according to claim 5, characterized in that, The third and fourth chambers are arranged parallel to the horizontal direction and perpendicular to the direction from the first chamber to the second chamber.

7. The energy storage device according to claim 5, characterized in that, The battery assembly includes a battery pack, which includes a heat dissipation pipe; the pipeline module further includes an outlet pipe, a cooling pipe, and a return pipe, the cooling pipe including a first cooling section and a second cooling section, the outlet pipe, the first cooling section, the heat dissipation pipe, the second cooling section, and the return pipe being connected in sequence, the liquid cooling module being connected to the outlet pipe and capable of pumping coolant into the outlet pipe so that the coolant flows sequentially through the outlet pipe, the first cooling section, the heat dissipation pipe, the second cooling section, and the return pipe.

8. The energy storage device according to claim 7, characterized in that, The return water pipe includes a high-temperature cooling section, which is housed within the third chamber.

9. The energy storage device according to claim 8, characterized in that, The energy storage device also includes a fan, which is installed in the third chamber and has its air inlet facing the high-temperature cooling section.

10. The energy storage device according to claim 1, characterized in that, The housing is provided with a clearance hole communicating with the accommodating space, the clearance hole being adapted for a sensor for detecting air parameters within the accommodating space to pass through; the energy storage device further includes a seal connected to the housing and covering the clearance hole, the seal being configured to be detachable from the housing.

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