Energy storage cabinet

Abstract

The embodiment of the utility model provides an energy storage cabinet, and relates to the field of energy storage. The energy storage cabinet comprises a battery cabin, an electrical cabin and a liquid cooling cabin. A plurality of battery packs are installed in the battery cabin, electrical parts are installed in the electrical cabin, and a liquid cooling unit is installed in the liquid cooling cabin. The battery cabin, the electrical cabin and the liquid-cooled cabin are separated through partition plates, the battery cabin is located at the bottom end of the energy storage cabinet, and the electrical cabin is located between the battery cabin and the liquid-cooled cabin. Connecting pieces are installed on the partition plates and used for connecting the battery packs, the electrical parts and the liquid cooling unit in a cross-cabin mode. And the partition plates are in sealed connection with the connecting pieces so as to separate unoccupied spaces in the battery cabin, the electrical cabin and the liquid cooling cabin. The energy storage cabinet is not prone to short circuit and high in safety.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of energy storage, and specifically to an energy storage cabinet. Background Art

[0002] With the rapid development of new energy technologies such as renewable energy and electric vehicles, energy storage technology is becoming increasingly mature. As a key component of energy storage systems, energy storage cabinets undertake multiple tasks, including storing electrical energy, balancing grid loads, and ensuring a stable power supply.

[0003] Existing energy storage cabinets usually integrate battery packs, liquid cooling units, and various electrical components to reduce floor space and costs.

[0004] However, in existing energy storage cabinets, the battery pack is typically mounted at the top, resulting in a high center of gravity. Furthermore, the liquid cooling unit and electrical components are often co-located. A leak in the cooling unit could easily lead to a short circuit, posing a significant safety risk. Therefore, improving the safety of energy storage cabinets remains a pressing technical challenge. Utility Model Content

[0005] In response to the above-mentioned issues, an embodiment of the present application provides an energy storage cabinet that houses a battery pack, electrical components, and a liquid cooling unit, respectively, via a battery compartment, an electrical compartment, and a liquid cooling unit compartment. The battery compartment is located at the bottom of the cabinet, providing a low center of gravity, good stability, and enhanced safety. Furthermore, a connector is mounted on the partition, and the connector is sealed to the partition, thereby separating the unoccupied space within the battery compartment, the electrical compartment, and the liquid cooling unit compartment. Even if the liquid cooling unit leaks, the leaked liquid will not flow into the electrical compartment or the battery compartment, thus avoiding the risk of short circuits and improving safety.

[0006] According to one aspect of an embodiment of the present application, an energy storage cabinet is provided, which includes a battery compartment, an electrical compartment and a liquid cooling compartment. A plurality of battery packs are installed in the battery compartment, electrical components are installed in the electrical compartment, and a liquid cooling unit is installed in the liquid cooling compartment. The battery compartment, the electrical compartment and the liquid cooling unit are separated by a partition, the battery compartment is located at the bottom of the energy storage cabinet, and the electrical compartment is located between the battery compartment and the liquid cooling unit. A connector is installed on the partition, and the connector is used to connect the battery pack, electrical components and liquid cooling unit across the compartment. The partition is sealed to the connector to separate the unoccupied space in the battery compartment, the electrical compartment and the liquid cooling unit.

[0007] The energy storage cabinet has a low center of gravity, good stability, and avoids the risk of short circuit caused by coolant leakage, thereby improving safety.

[0008] In one optional embodiment, the connector includes a flange joint and a liquid cooling pipe. The partition is sealedly connected to the flange joint. The liquid cooling pipe is sealedly connected to the flange joint to connect the liquid cooling unit and the liquid cooling element of the battery pack across the compartment.

[0009] In this method, the coolant is transported across the cabins through flange joints and liquid cooling pipes. It has a simple structure, is easy to assemble, and is also convenient for sealing between cabins.

[0010] In an optional embodiment, the connector includes a cable gland and a wiring harness. The partition is sealed and connected to the cable gland. The wiring harness passes through the cable gland to connect the electrical component to the wiring port of the battery pack across the compartment.

[0011] In this method, cross-compartment connection of electrical components and battery packs is achieved through cable glands and wiring harnesses. It has a simple structure and is easy to assemble, and can also ensure the sealing effect of the cross-compartment position where the wiring harness passes through the partition.

[0012] In one optional embodiment, a first air inlet and a first air outlet are provided on the bulkhead of the liquid-cooled engine compartment, and a second air inlet and a second air outlet are provided on the bulkhead of the electrical compartment. The air duct between the first air inlet and the first air outlet and the air duct between the second air inlet and the second air outlet are not connected to each other.

[0013] This method uses different separate air ducts to dissipate heat for the liquid-cooled compartment and the electrical compartment separately, making the air circulation smoother and the heat dissipation efficiency higher.

[0014] In an optional embodiment, the energy storage cabinet further includes a drain assembly. The partition is provided with a drain port, which leads to the drain assembly, so that the liquid on the partition can be discharged outside the energy storage cabinet through the drain port and the drain assembly.

[0015] In this way, the liquid on the partition can be discharged outside the energy storage cabinet through the drain port and the drain assembly, thereby isolating the unoccupied space of each compartment and allowing the liquid on each partition to be discharged smoothly, thereby avoiding liquid accumulation and causing short circuits, further improving safety.

[0016] In an optional embodiment, the partition includes an inclined plate with an inclination angle, and the plate surface of the inclined plate gradually rises higher than the drain port in the direction away from the drain port, so that the liquid on the inclined plate can flow into the drain port along the plate surface of the inclined plate under the action of gravity.

[0017] In this method, the inclined plate has an inclination angle compared to the horizontal plane. After the liquid enters the compartment and falls on the surface of the inclined plate, the liquid will flow along the surface of the inclined plate to the drain port under the action of gravity, so that the liquid is automatically discharged, avoiding the accumulation of liquid, further reducing the risk of liquid short circuit, and improving safety.

[0018] In an alternative, the inclined plate comprises a first inclined plate and a second inclined plate, and the partition further comprises a flat plate. The liquid outlet is arranged on the flat plate, and the flat plate is connected between the first inclined plate and the second inclined plate, and the plate surface of the first inclined plate and the second inclined plate gradually rises higher than the plate surface of the flat plate in the direction away from the flat plate, so that the liquid on the first inclined plate and the second inclined plate can flow into the liquid outlet under the action of gravity.

[0019] In this way, the first inclined plate and the second inclined plate are inclined towards the liquid outlet of the flat plate, so that the liquid can automatically flow to the liquid outlet under the action of gravity, and the liquid can be fully automatically discharged from the liquid outlet. Moreover, the structure is simple and convenient to process.

[0020] In an alternative, the liquid discharge assembly comprises a liquid collecting tank, and the tank opening of the liquid collecting tank is opposite to the liquid outlet, so that the liquid collecting tank can catch the liquid falling from the liquid outlet.

[0021] In this way, the liquid falling from the liquid outlet is caught by the liquid collecting tank, and the structure is simple, the tolerance in size is high, the precision requirement for sealing arrangement is low, and the processing and placement are convenient.

[0022] In an alternative, the liquid discharge assembly further comprises a liquid discharge pipe, and the liquid discharge pipe is connected to the tank bottom of the liquid collecting tank, so that the liquid collected by the liquid collecting tank can be discharged outside the energy storage cabinet through the liquid discharge pipe.

[0023] In this way, the structure of the liquid discharge pipe and the liquid collecting tank is simple, and convenient to install and replace. Moreover, the adaptability of the liquid discharge pipe is strong, and can be adaptively designed or arranged according to the complex structure of the energy storage cabinet, so that the liquid collected by the liquid collecting tank can be smoothly discharged outside the energy storage cabinet.

[0024] In an alternative, the connecting piece comprises a flange joint. The partition is sealingly connected with the flange joint. The liquid discharge pipe is sealingly communicated with the flange joint, so that the liquid collected by the liquid collecting tank can be transported across the cabin and discharged outside the energy storage cabinet.

[0025] In this way, the flange joint is used to transport the liquid to be discharged across the cabin, so that the liquid can be discharged from the lower position of the energy storage cabinet to the outside of the energy storage cabinet, and the secondary entry of the liquid into the energy storage cabinet during discharge can be avoided. Moreover, the structure is simple and convenient to assemble, and also convenient for sealing treatment between cabins.

[0026] The energy storage cabinet provided in the embodiment of the present application is equipped with a battery compartment, an electrical compartment and a liquid cooling compartment, respectively, to install a battery pack, electrical components and a liquid cooling unit. The battery compartment is located at the bottom of the energy storage cabinet, which facilitates the installation and maintenance of the battery pack. At the same time, it makes the overall center of gravity of the energy storage cabinet lower, reduces the strength requirements for the energy storage cabinet frame, and is more stable and safer as a whole. The liquid cooling compartment and the electrical compartment are located at the upper end of the energy storage cabinet, which facilitates ventilation and heat exchange, is not easy to accumulate dust, and reduces maintenance costs. In addition, the partitions and connectors are sealed to separate the unoccupied space in the battery compartment, the electrical compartment and the liquid cooling compartment, so that each compartment is independently sealed from each other, air does not flow across the compartments, the temperature and humidity of each compartment tend to be stable, and the environmental stability of each compartment is improved. At the same time, even if the liquid cooling unit leaks, the leaked liquid will not flow into the electrical compartment or the battery compartment, avoiding the risk of short circuit and improving safety.

[0027] The above description is only an overview of the technical solutions of the embodiments of this application. In order to more clearly understand the technical means of the embodiments of this application, you can implement them according to the contents of the description. In order to make the above and other purposes, features and advantages of the embodiments of this application more obvious and easy to understand, the following specifically describes the specific implementation methods of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0029] Figure 1 This is a schematic structural diagram of an energy storage cabinet from a first perspective provided in an embodiment of the present application.

[0030] Figure 2 This is a schematic structural diagram of an energy storage cabinet from a second perspective provided in an embodiment of the present application.

[0031] Figure 3 This is an exploded view of an energy storage cabinet involved in an embodiment of the present application.

[0032] Figure 4 This is a partial schematic diagram of the location of the connector of an energy storage cabinet involved in an embodiment of the present application.

[0033] Figure 5 This is a schematic structural diagram of a partition of an energy storage cabinet involved in an embodiment of the present application.

[0034] Figure 6 This is a cross-sectional view of a partition of an energy storage cabinet involved in an embodiment of the present application.

[0035] Figure 7This is a partial cross-sectional view of the location of a partition of an energy storage cabinet involved in an embodiment of the present application.

[0036] Figure 8 This is a partial schematic diagram of an energy storage cabinet with a drain pipe involved in an embodiment of the present application.

[0037] Reference numerals:

[0038] 10. Battery compartment; 11. Battery pack;

[0039] 20. Electrical compartment; 21. Electrical components; 22. Second air inlet; 23. Second air outlet;

[0040] 30. Liquid-cooled cabin; 31. Liquid-cooled unit; 32. First air inlet; 33. First air outlet;

[0041] 40, partition; 41, drain port; 421, first inclined plate; 422, second inclined plate; 43, flat plate;

[0042] 50. Connector; 51. Flange connector; 52. Liquid cooling pipe; 53. Cable gland; 54. Wiring harness;

[0043] 60. Drain assembly; 61. Liquid collecting tank; 62. Drain pipe. DETAILED DESCRIPTION

[0044] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0046] The terms "comprises", "comprising" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover but not exclude other contents. The word "a" or "an" does not exclude the presence of a plurality.

[0047] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it necessarily refer to independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0048] The term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0049] The directional terms appearing in the following description refer to the directions shown in the drawings and do not limit the specific structure of the energy storage cabinet of this application. For example, in the description of this application, the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings. These terms are intended solely to facilitate the description of this application and simplify the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0050] Furthermore, the expressions indicating directions such as the X direction, the Y direction, and the Z direction used to illustrate the operation and configuration of the components of the energy storage cabinet of this embodiment are not absolute but relative. Although these indications are appropriate when the components of the energy storage cabinet are in the positions shown in the figures, when these positions are changed, these directions should be interpreted differently to correspond to the changes.

[0051] In addition, the terms "first", "second", etc. in the description and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order, and may explicitly or implicitly include one or more such features.

[0052] In the description of this application, unless otherwise specified, "plurality" means more than two (including two), and similarly, "multiple groups" means more than two (including two).

[0053] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, "connected" or "connected" in a mechanical structure can refer to a physical connection. For example, a physical connection can be a fixed connection, such as a fixed connection via a fixing member, such as a screw, bolt, or other fixing member. A physical connection can also be a detachable connection, such as a mutual snap-fit ​​connection. A physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. "Connected" or "connected" in a circuit structure can refer not only to a physical connection but also to an electrical connection or a signal connection. For example, it can be a direct connection, i.e., a physical connection, or an indirect connection through at least one intermediate element, as long as the circuit is interconnected. It can also refer to internal communication between two elements. A signal connection can refer to a signal connection through a circuit or a signal connection through a media medium, such as radio waves. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0054] The energy storage cabinet provided in this embodiment is as follows Figure 1 、 Figure 2 and Figure 3 As shown, Figure 1 This is a schematic diagram of the structure of an energy storage cabinet from a first perspective provided in an embodiment of the present application. Figure 2 This is a structural diagram of an energy storage cabinet provided in an embodiment of the present application from a second perspective. Figure 3 The exploded view of an energy storage cabinet according to an embodiment of the present application is shown, wherein the energy storage cabinet includes a battery compartment 10, an electrical compartment 20, and a liquid cooling compartment 30.

[0055] The battery compartment 10, electrical compartment 20, and liquid cooling compartment 30 all have cavity structures. Multiple battery packs 11 are installed in the battery compartment 10, electrical components 21 are installed in the electrical compartment 20, and a liquid cooling unit 31 is installed in the liquid cooling unit 30. The size and shape of the battery compartment 10, electrical compartment 20, and liquid cooling unit 30 can be adaptively designed based on the number, volume, and shape of the battery packs 11, electrical components 21, and liquid cooling unit 31.

[0056] The electrical components 21 are used to electrically connect to the battery pack 11 to distribute electrical energy. Multiple electrical components 21 may be provided, and may include a power conversion system (PCS), a high-voltage box, a fire protection and power distribution module, etc. The liquid cooling unit 31 is used to provide coolant to the battery pack 11.

[0057] The multiple battery packs 11 can be mounted vertically or horizontally within the battery compartment 10, without limitation. The battery packs 11 can be secured within the battery compartment 10 in a variety of ways, such as by bolts, clips, or other fasteners, without limitation.

[0058] In this embodiment, the battery compartment 10, the electrical compartment 20, and the liquid cooling compartment 30 are separated by a partition 40. The battery compartment 10 is located at the bottom of the energy storage cabinet, and the electrical compartment 20 is located between the battery compartment and the liquid cooling compartment 30. The battery compartment 10, the electrical compartment 20, and the liquid cooling compartment 30 are sequentially arranged from bottom to top of the energy storage cabinet, so that the battery pack 11 is located below the liquid cooling unit 31 and the electrical components 21, which facilitates the installation and maintenance of the battery pack 11. The center of gravity of the energy storage cabinet is at a lower position, and the energy storage cabinet as a whole is more stable and safer. At the same time, due to the low center of gravity, the energy storage cabinet can reduce the impact on the cabinet body during transportation vibration or external impact, thereby reducing the strength requirements of the energy storage cabinet frame.

[0059] The liquid cooling cabin 30 and the electrical cabin 20 are located above the energy storage cabinet, and the air circulation is smoother, which facilitates ventilation and heat exchange of the liquid cooling unit 31 and the electrical components 21.

[0060] For example, an alternative approach is Figure 3 As shown, the bulkhead of the liquid-cooled compartment 30 is provided with a first air inlet 32 ​​and a first air outlet 33 facing each other, and the bulkhead of the electrical compartment 20 is provided with a second air inlet 22 and a second air outlet 23 facing each other. The air duct between the first air inlet 32 ​​and the first air outlet 33 and the air duct between the second air inlet 22 and the second air outlet 23 are not connected to each other.

[0061] This method uses different separate air ducts to dissipate heat for the liquid-cooled cabin 30 and the electrical cabin 20 respectively, which makes the air circulation smoother and the heat dissipation efficiency higher.

[0062] Furthermore, corresponding devices such as air inlet dust grilles can be installed, or each air inlet and outlet can be configured as a mesh grille structure to prevent excessive dust from entering the cabin while ensuring effective ventilation. Because the air quality above the energy storage cabinet is better and less prone to dust accumulation, the air inlet dust grilles require less frequent cleaning and maintenance, thereby reducing maintenance costs.

[0063] The partition plate 40 is a partition structure separating two adjacent ones of the battery compartment 10, the electrical compartment 20 and the liquid cooling machine compartment 30. Specifically, the partition plate 40 is arranged between the battery compartment 10 and the electrical compartment 20, and between the electrical compartment 20 and the liquid cooling machine compartment 30. Moreover, the partition plate 40 between the battery compartment 10 and the electrical compartment 20 forms the top plate of the battery compartment 10 and the bottom plate of the electrical compartment 20, and the partition plate 40 between the electrical compartment 20 and the liquid cooling machine compartment 30 forms the top plate of the electrical compartment 20 and the bottom plate of the liquid cooling machine compartment 30.

[0064] In the embodiment, the partition plate 40 can be a complete structure alone, or can be a part of the energy storage cabinet frame. Moreover, the partition plate 40 can be a detachable integrated structure, or can be an assembly structure composed of multiple components, such as a combined structure composed of multiple plates overlapped or spliced, without specific limitation here.

[0065] The connection member 50 is mounted on the partition plate 40, and is used to connect the battery pack 11, the electrical component 21 and the liquid cooling machine set 31 across the compartments. Moreover, the partition plate 40 is sealingly connected with the connection member 50, so as to separate the unoccupied spaces in the battery compartment 10, the electrical compartment 20 and the liquid cooling machine compartment 30.

[0066] The connection member 50 can connect the battery pack 11, the electrical component 21 and the liquid cooling machine set 31 across the compartments. In a specific embodiment, the connection member 50 can connect the liquid cooling machine set 31 and the battery pack 11, so as to deliver the cooling liquid of the liquid cooling machine set 31 to the liquid cooling plate and other liquid cooling components of the battery pack 11. The connection member 50 can also connect the electrical component 21 and the battery pack 11 across the compartments, so as to establish a current loop of the electrical component 21 and the battery pack 11.

[0067] The connection member 50 is mounted on the partition plate 40 and is sealingly connected with the partition plate 40, that is, the battery compartment 10, the electrical compartment 20 and the liquid cooling machine compartment 30 are sealingly treated, so that the unoccupied spaces of the compartments are not communicated with each other, and the connection across the compartments of the components in different compartments can only be achieved through the connection member 50.

[0068] Since the compartments are independent and not communicated with each other, the air in the compartments cannot flow into each other, for example, the air in the battery compartment 10 and the electrical compartment 20 cannot flow into each other. The temperature and humidity in the compartments tend to be stable, and the environmental stability of the compartments is improved. Moreover, the leaked cooling liquid cannot flow across the compartments, that is, even if the liquid cooling machine set 31 leaks, the leaked liquid cannot flow into the electrical compartment 20 or the battery compartment 10, and the short circuit or arc phenomenon is avoided, and the safety of the energy storage cabinet is improved.

[0069] In the embodiment, the connection member 50 has many setting modes. One optional mode is shown in FIG. 4. Figure 4 Figure 4 ​This is a partial schematic diagram illustrating the location of connectors in an energy storage cabinet according to an embodiment of the present application. The connector 50 includes a flange joint 51 and a liquid cooling pipe 52. The partition 40 is sealedly connected to the flange joint 51. The liquid cooling pipe 52 is in sealed communication with the flange joint 51, establishing cross-compartmental communication between the liquid cooling unit 31 and the liquid cooling components of the battery pack 11.

[0070] The bulkhead 40 is sealedly connected to the flange joint 51, eliminating any gap between the two. This prevents coolant leakage when the flange joint 51 is transporting coolant, and prevents air from flowing across the cabin. In a specific embodiment, the bulkhead 40 may be provided with a through hole extending through the bulkhead 40 , with the flange joint 51 sealedly connected to the opening of the through hole in the bulkhead 40, thereby forming a cross-cabin passage.

[0071] The flange joint 51 is sealedly connected to the liquid cooling pipe 52, and the liquid cooling pipe 52 is connected to the liquid cooling unit 31 and the battery pack 11, so that the flange joint 51 and the liquid cooling pipe 52 form a cross-cabin coolant delivery channel, so that the coolant circulates between the liquid cooling unit 31 and the liquid cooling parts of the battery pack 11 to dissipate heat for the battery pack 11.

[0072] In this manner, the cooling liquid is transported across the compartments through the flange joint 51 and the liquid cooling pipe 52 . The structure is simple, the assembly is convenient, and the sealing between the compartments is also convenient.

[0073] In another way, you can also Figure 4 As shown, the connector 50 includes a cable gland 53 and a wiring harness 54. The partition 40 is sealedly connected to the cable gland 53, and the wiring harness 54 passes through the cable gland 53 to connect the electrical component 21 to the wiring port of the battery pack 11 across the compartment.

[0074] The bulkhead 40 and the cable gland 53 are sealed together, leaving no gap between them, preventing air from flowing across the cabin. In a specific embodiment, the bulkhead 40 may be provided with a through hole extending through the bulkhead 40 . The cable gland 53 is sealedly connected to the opening of the through hole. After the wiring harness 54 passes through the cable gland 53 , the cable gland 53 itself secures the wiring harness 54 , thereby achieving a seal.

[0075] In this method, the cross-compartment connection between the electrical component 21 and the battery pack 11 is achieved through the cable gland 53 and the wiring harness 54. It has a simple structure and is easy to assemble, and can also ensure the sealing effect of the cross-compartment position where the wiring harness 54 passes through the partition 40.

[0076] In this embodiment, the compartments are separated by partitions 40, preventing their unoccupied spaces from intercommunication. If coolant leaks or rainwater enters the compartments through the air inlets, the liquid could accumulate on the partitions 40 if not promptly drained, potentially causing a short circuit. To address this, a structure can be provided on the partitions 40 to drain the liquid, preventing it from accumulating in the liquid-cooled compartment 30 or electrical compartment 20, reducing the risk of short circuits and improving safety.

[0077] An alternative method is Figure 5 and Figure 6 As shown, Figure 5 This is a structural diagram of a partition of an energy storage cabinet involved in an embodiment of the present application. Figure 6 This is a cross-sectional view of a partition of an energy storage cabinet according to an embodiment of the present application. The energy storage cabinet includes a drain assembly 60. A drain port 41 is provided on the partition 40, which leads to the drain assembly 60, allowing liquid on the partition 40 to be discharged outside the energy storage cabinet through the drain port 41 and the drain assembly 60.

[0078] In this manner, the liquid on the partition 40 can be discharged outside the energy storage cabinet through the drain port 41 and the drain assembly 60, thereby separating the unoccupied space of each compartment and allowing the liquid on each partition 40 to be discharged smoothly, thereby avoiding liquid accumulation and causing a short circuit, further improving safety.

[0079] The drain port 41 is an opening provided on the partition 40 for providing a drain outlet for liquid such as coolant or rainwater on the partition 40. The drain port 41 can be provided in multiple shapes, and the drain port 41 can be provided in an elliptical, circular, square, etc. shape as required, without limitation herein.

[0080] The drain port 41 should be located at a lower position on the partition 40 to drain as much liquid as possible and prevent excessive accumulation of liquid on the partition 40. In an optional embodiment, the partition 40 includes an inclined plate with an inclination angle, and the plate surface of the inclined plate gradually rises higher than the drain port 41 in the direction away from the drain port 41, so that the liquid on the inclined plate can flow into the drain port 41 along the plate surface of the inclined plate under the action of gravity.

[0081] The inclined plate is a component that constitutes the partition 40. The surface of the inclined plate constitutes the bottom surface of the cabin. For example, when an inclined plate is provided in the partition 40 between the electrical cabin 20 and the liquid-cooled cabin 30, the surface of the inclined plate constitutes the cabin bottom surface of the liquid-cooled cabin 30. When the coolant leaks or liquid such as rainwater enters, the liquid falls on the surface of the inclined plate and flows along the surface of the inclined plate to the drain port 41.

[0082] In this method, the inclined plate has an inclination angle compared to the horizontal plane. After the liquid enters the compartment and falls on the surface of the inclined plate, the liquid will flow along the surface of the inclined plate to the drain port 41 under the action of gravity, so that the liquid is automatically discharged, avoiding the accumulation of liquid, further reducing the risk of liquid short circuit, and improving safety.

[0083] There are many ways to set the position of the drain port 41. For example, the drain port 41 can be set on the inclined plate and at a lower position, or the drain port 41 can be set on other plates connected to the bottom of the inclined plate, or the drain port 41 can be surrounded by the inclined plate and other plates.

[0084] For example, in an optional manner, Figure 5 、 Figure 6 and Figure 7 As shown, Figure 7 This is a partial cross-sectional view of the partitions of an energy storage cabinet according to an embodiment of the present application. The inclined plates include a first inclined plate 421 and a second inclined plate 422, and the partition 40 also includes a flat plate 43. A drain port 41 is provided on the flat plate 43, which is connected between the first and second inclined plates 421, 422. The surfaces of the first and second inclined plates 421, 422 gradually rise above the surface of the flat plate 43 as they move away from the flat plate 43, allowing liquid on both the first and second inclined plates 421, 422 to flow into the drain port 41 under the action of gravity.

[0085] The flat plate 43, the first inclined plate 421, and the second inclined plate 422 together form the partition 40. The surface area of ​​the first inclined plate 421 and the second inclined plate 422 can be much larger than that of the flat plate 43. The first and second inclined plates 421, 422 are tilted in such a way that they form a V-shaped structure. The flat plate 43, which is provided with the drain port 41, is located at the bottom of the V-shaped structure, forming an inverted trapezoidal shape overall, ensuring sufficient liquid flow into the drain port 41.

[0086] In this manner, the first inclined plate 421 and the second inclined plate 422 are both inclined toward the drain port 41 of the flat plate 43, allowing the liquid to automatically flow to the drain port 41 under the action of gravity, and allowing the liquid to be fully and automatically discharged from the drain port 41. Furthermore, the structure is simple and the processing is convenient.

[0087] The drain assembly 60 is a structural component used to drain liquid discharged from the drain port 41 outside the energy storage cabinet. The drain assembly 60 should be sealed with the partition 40 to prevent the drain port 41 and the drain assembly 60 from interfering with the sealing between the different compartments. For example, the connection between the drain assembly 60 and the partition 40 can be sealed using an interference fit, welding, a sealing ring, or a sealant.

[0088] The drain assembly 60 can be configured in a variety of ways. The drain assembly 60 can be directly and sealedly connected to the drain port 41 to drain the liquid outside the energy storage cabinet. Alternatively, the drain assembly 60 can be positioned relative to the drain port 41 in a sealed manner to collect and discharge the liquid discharged from the drain port 41.

[0089] For example, an optional method may be as follows Figure 6 and Figure 7 As shown, the drain assembly 60 includes a liquid collecting trough 61 , the notch of which is opposite to the drain port 41 , so that the liquid collecting trough 61 can catch the liquid falling from the drain port 41 .

[0090] This method collects the liquid falling from the drain port 41 through the liquid collecting trough 61 , has a simple structure, a high dimensional tolerance, low precision requirements for sealing setting, and is easy to process and place.

[0091] When the liquid collecting tank 61 is provided, a structure for conveying liquid should be further provided. Figure 6 and Figure 7 As shown, the drain assembly 60 further includes a drain pipe 62 , which is connected to the bottom of the liquid collecting tank 61 , so that the liquid collected in the liquid collecting tank 61 can be discharged outside the energy storage cabinet through the drain pipe 62 .

[0092] In this manner, the drain pipe 62 and the liquid collecting tank 61 have simple structures and are easy to install and replace. In addition, the drain pipe 62 has strong adaptability and can be adaptively designed or arranged corresponding to the complex structure of the energy storage cabinet, and can smoothly discharge the liquid collected in the liquid collecting tank 61 to the outside of the energy storage cabinet.

[0093] When the drain pipe 62 is conveying liquid, if it is desired to discharge the liquid from a lower position of the energy storage cabinet to outside the energy storage cabinet, cross-compartment conveying may also be involved. In this regard, cross-compartment conveying can also be achieved through the connector 50 to avoid affecting the sealing between the compartments.

[0094] An alternative method is Figure 8 As shown, Figure 8 This is a partial schematic diagram of an energy storage cabinet with a drain pipe according to an embodiment of the present application. The connector 50 includes a flange joint 51. The partition 40 is sealedly connected to the flange joint 51. The drain pipe 62 is in sealed communication with the flange joint 51, allowing liquid collected in the sump 61 to be transported across the compartment and discharged outside the energy storage cabinet.

[0095] This method uses flange joints 51 to transport the liquid to be discharged across the compartments, allowing it to be discharged from a lower position outside the energy storage cabinet, thus preventing the liquid from re-entering the energy storage cabinet during discharge. Furthermore, it has a simple structure, is easy to assemble, and facilitates sealing between compartments.

[0096] In addition, when the partition 40 constituting the bottom plate of the electrical compartment 20 and the partition 40 constituting the bottom plate of the liquid cooling compartment 30 are both provided with a drainage assembly 60 and both use a drainage pipe 62, the respective drainage pipes 62 can be as follows: Figure 6 and Figure 8 Connect as shown to facilitate centralized discharge of liquid.

[0097] In summary, the energy storage cabinet described above utilizes a battery compartment, electrical compartment, and liquid cooling compartment to house the battery pack, electrical components, and liquid cooling unit, respectively. The battery compartment is located at the bottom of the cabinet, facilitating battery pack installation and maintenance. This also lowers the cabinet's overall center of gravity, reducing the strength requirements for the cabinet frame, resulting in greater overall stability and safety. The liquid cooling unit and electrical compartments are located at the top of the cabinet, facilitating ventilation and heat exchange, and resisting dust accumulation, thus reducing maintenance costs. Furthermore, partitions and connectors are sealed to separate the unoccupied spaces within the battery compartment, electrical compartment, and liquid cooling unit compartment, ensuring independent sealing between compartments. Air flow prevents cross-compartmental flow, maintaining stable temperature and humidity within each compartment, and enhancing environmental stability. Furthermore, even if the liquid cooling unit leaks, the leaked liquid will not flow into the electrical or battery compartments, minimizing the risk of short circuits and improving safety.

[0098] Those skilled in the art will appreciate that, although some embodiments herein do not include certain features included in other embodiments, combinations of features from different embodiments are still within the scope of this application and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0099] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An energy storage cabinet, characterized in that: The energy storage cabinet includes: a battery compartment, an electrical compartment and a liquid cooling compartment; A plurality of battery packs are installed in the battery compartment, electrical components are installed in the electrical compartment, and a liquid cooling unit is installed in the liquid cooling compartment; The battery compartment, the electrical compartment and the liquid cooling compartment are separated by a partition, the battery compartment is located at the bottom of the energy storage cabinet, and the electrical compartment is located between the battery compartment and the liquid cooling compartment; A connector is installed on the partition, and the connector is used to connect the battery pack, the electrical components and the liquid cooling unit across the compartment; the partition is sealed with the connector to separate the unoccupied space in the battery compartment, the electrical compartment and the liquid cooling compartment.

2. The energy storage cabinet according to claim 1, characterized in that: The connecting piece includes a flange joint and a liquid cooling pipe; The partition is sealed and connected to the flange joint; the liquid cooling pipe is sealed and communicated with the flange joint to connect the liquid cooling unit and the liquid cooling parts of the battery pack across the compartment.

3. The energy storage cabinet according to claim 1, characterized in that: The connecting piece includes a cable gland and a wiring harness; The partition is sealed and connected to the cable gland; the wiring harness passes through the cable gland to connect the electrical components to the wiring port of the battery pack across the compartment.

4. The energy storage cabinet according to claim 1, characterized in that: The bulkhead of the liquid cooling cabin is provided with a first air inlet and a first air outlet opposite to each other; the bulkhead of the electrical cabin is provided with a second air inlet and a second air outlet opposite to each other; The air duct between the first air inlet and the first air outlet and the air duct between the second air inlet and the second air outlet are not connected to each other.

5. The energy storage cabinet according to claim 1, characterized in that: The energy storage cabinet also includes a drain assembly; The partition is provided with a drain port, which leads to the drain assembly, so that the liquid on the partition can be discharged outside the energy storage cabinet through the drain port and the drain assembly.

6. The energy storage cabinet according to claim 5, characterized in that: The partition includes an inclined plate with an inclination angle, wherein the plate surface of the inclined plate gradually rises above the drain port in a direction away from the drain port, so that the liquid on the inclined plate can flow into the drain port along the plate surface of the inclined plate under the action of gravity.

7. The energy storage cabinet according to claim 6, characterized in that: The inclined plate includes a first inclined plate and a second inclined plate, and the partition further includes a flat plate; The drain port is provided on the flat plate, which is connected between the first inclined plate and the second inclined plate. The plate surfaces of the first inclined plate and the second inclined plate are gradually higher than the plate surfaces of the flat plate in a direction away from the flat plate, so that liquid on the first inclined plate and the second inclined plate can flow into the drain port under the action of gravity.

8. The energy storage cabinet according to claim 5, characterized in that: The drainage assembly includes a liquid collecting trough, the notch of which is opposite to the drainage port, so that the liquid collecting trough can catch the liquid falling from the drainage port.

9. The energy storage cabinet according to claim 8, characterized in that: The drainage assembly further includes a drainage pipe connected to the bottom of the liquid collecting tank, so that the liquid collected in the liquid collecting tank can be discharged outside the energy storage cabinet through the drainage pipe.

10. The energy storage cabinet according to claim 8, characterized in that: The connecting piece includes a flange joint; The partition is sealed and connected to the flange joint; the drain pipe is sealed and connected to the flange joint, so that the liquid collected in the sump can be transported across the compartment and discharged outside the energy storage cabinet.

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