Energy storage cabinet

Abstract

The utility model provides an energy storage cabinet which comprises a cabinet body, the cabinet body is internally provided with a battery compartment, the battery compartment comprises at least one battery pack and a battery compartment bottom plate located below the at least one battery pack, the periphery of the battery compartment is provided with heat preservation cotton, and the battery compartment bottom plate is provided with drainage holes; the liquid cooling unit bin comprises a liquid cooling unit and a first fire extinguishing device, the liquid cooling unit is provided with an air outlet for leading air to the outside of the cabinet body, and the air outlet is provided with an air outlet duct; and the high-pressure box bin comprises a high-pressure box and a second fire extinguishing device. The energy storage cabinet provided by the utility model has good thermal insulation performance and heat dissipation performance, water in the energy storage cabinet can be discharged in time, and the safety risk of the energy storage cabinet is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of energy storage, specifically relates to a kind of energy storage cabinet. BACKGROUND

[0002] The direct current energy storage cabinet currently running in market has the following problems: when facing extreme weather, the heat preservation performance in the cabinet is poor, the water immersion sensor is misreported due to the delayed drainage in the energy storage cabinet, the liquid cooling unit is difficult to dissipate heat, and the energy storage cabinet fire-fighting design is not complete when safety risk occurs, which reduces the owner's income or increases the safety risk of the energy storage cabinet. UTILITY MODEL CONTENT

[0003] In order to overcome the defects in the prior art, the utility model embodiment provides an energy storage cabinet with good heat preservation performance and heat dissipation performance, which can timely drain water in the energy storage cabinet and reduce the safety risk of the energy storage cabinet.

[0004] To achieve the above purpose, the utility model adopts the technical scheme of:

[0005] The utility model discloses an energy storage cabinet, which comprises a cabinet body, and the cabinet body is internally provided with:

[0006] A battery compartment, the battery compartment comprises at least one battery pack and a battery compartment bottom plate located below the at least one battery pack, the battery compartment is provided with heat preservation cotton on the periphery, and the battery compartment bottom plate is provided with a drainage hole;

[0007] A liquid cooling unit compartment, the liquid cooling unit compartment comprises a liquid cooling unit and a first fire extinguishing device, the liquid cooling unit is provided with an air outlet for guiding air to the outside of the cabinet body, and the air outlet is provided with an air outlet air duct;

[0008] A high-voltage box compartment, the high-voltage box compartment comprises a high-voltage box and a second fire extinguishing device.

[0009] The above technical scheme sets heat preservation cotton on the periphery of the battery compartment, the heat preservation cotton has strong heat preservation performance, can avoid the temperature in the battery compartment being affected by the outside world, the drainage hole can make the condensed water in the energy storage cabinet flow into the drainage hole along the battery compartment bottom plate and then be discharged outside the cabinet, thereby enhancing the drainage performance of the energy storage cabinet, the air outlet air duct can improve the heat dissipation performance of the liquid cooling unit, avoid the liquid cooling unit being reduced in capacity due to high internal temperature, and the fire extinguishing devices arranged in the liquid cooling unit compartment and the high-voltage box compartment can improve the safety performance in the energy storage cabinet, compared with the existing energy storage cabinet, the utility model improves the heat preservation performance, heat dissipation performance, drainage performance and fire-fighting performance in the energy storage cabinet as a whole, thereby avoiding the safety problems and benefit problems of the energy storage cabinet due to the reduction of any of the above performances when the energy storage cabinet faces extreme weather, and reducing the safety risk of the energy storage cabinet.

[0010] Further, the battery compartment is provided with double-layer partitions on the side, the thermal insulation cotton is arranged in the double-layer partitions, and the partition close to the battery pack is detachable. The partition close to the battery pack is detachable, facilitating the installation of the thermal insulation cotton, the thickness of the thermal insulation cotton is greater than 60 mm, the thermal insulation performance of the thermal insulation cotton is strong, and the temperature inside the battery compartment can be prevented from being affected by the outside.

[0011] Further, the cabinet is divided into the battery compartment on one side of the double-layer partitions and the liquid cooling unit compartment and the high-voltage box compartment on the other side of the double-layer partitions by the double-layer partitions inside the cabinet, the liquid cooling unit compartment is located above the high-voltage box compartment, and the double-layer partitions between the battery compartment and the liquid cooling unit compartment are provided with wire protection coils.

[0012] By arranging the double-layer partitions and the thermal insulation cotton in the double-layer partitions, the heat of the liquid cooling unit compartment can be prevented from being conducted into the battery compartment, the probability of the formation of condensed water on the liquid cooling plate of the battery pack in the battery compartment can be reduced, the wire protection coils are arranged on the double-layer partitions between the battery compartment and the liquid cooling unit compartment, the heat in the liquid cooling unit compartment is further prevented from being transmitted into the battery pack compartment, and the probability of the formation of condensed water inside the battery compartment is further reduced.

[0013] Further, the battery compartment bottom plate is inclined towards the drain hole. The inclined arrangement of the battery compartment bottom plate can accelerate the outflow of the condensed water inside the energy storage cabinet, so that the energy storage cabinet can be drained in time.

[0014] Further, the battery compartment bottom plate is inclined by 1°-5° from the first side to the second side, and the drain hole is arranged close to the second side. If the inclination angle of the battery compartment bottom plate is too large, the size of the energy storage cabinet as a whole will also be large, resulting in the reduction of the energy density of the energy storage system. If the inclination angle of the battery compartment bottom plate is too small, the drainage performance of the energy storage cabinet will be reduced, resulting in the delay of drainage.

[0015] Further, the battery compartment bottom plate is provided with a lower recess, the drain hole is arranged in the lower recess, and a first liquid discharge valve is arranged on the drain hole. The condensed water in the energy storage cabinet flows into the lower recess along the battery compartment bottom plate and is then discharged out of the cabinet from the first liquid discharge valve, so that the condensed water can be effectively guided out of the battery compartment.

[0016] Further, the depth of the lower recess is 37 mm-47 mm, and a wire slot fixing frame is further arranged in the lower recess. The wire slot fixing frame raises the installation height of the wire slot, avoids the contact between the condensed water and the wire harness, and avoids the damage of the wire harness. Meanwhile, the lower recess is recessed, so that the wire slot fixing frame is more convenient to install, the arrangement and installation of the connecting wires are facilitated, the wiring is more reasonable, and the later maintenance is facilitated.

[0017] Further, the air outlet air duct comprises a fixed plate connected with the liquid cooling unit and a baffle plate arranged around the fixed plate, the baffle plate extends away from the fixed plate from the connection position with the fixed plate, the fixed plate is provided with a through hole, and the fixed plate and the air outlet of the liquid cooling unit form the air outlet air duct together with the baffle plate.

[0018] The baffle plate and the fixed plate arranged at the air outlet of the liquid cooling unit form the air outlet air duct, so that the de-rating operation of the liquid cooling unit caused by the excessively high temperature in the liquid cooling unit compartment during full-load operation of the liquid cooling unit can be avoided, the air outlet air duct can accelerate the heat dissipation speed, and the heat dissipation performance of the liquid cooling unit is improved.

[0019] Further, the high-pressure box compartment is provided with a sensor and a second liquid discharge valve, the high-pressure box is located above the second liquid discharge valve, and the second fire extinguishing device is arranged above the high-pressure box. The sensor and the second liquid discharge valve in the high-pressure box compartment facilitate monitoring of the water accumulation in the high-pressure box compartment, so that the water can be discharged in time.

[0020] Further, the cabinet body comprises a first cabinet door and a second cabinet door which can be opened and closed, the first cabinet door is provided with a mesh, and the side of the first cabinet door facing the inside of the cabinet body is provided with a louver, and the louver opposite to the high-pressure box compartment is provided with detachable dustproof cotton. The louver can prevent water and heat dissipation, so that the waterproof performance and the heat dissipation performance of the energy storage cabinet are improved, and the dustproof cotton can prevent dust from entering the high-pressure box compartment, and further improve the waterproof performance of the energy storage cabinet.

[0021] Thanks to the above technical solutions, the present application has the following advantages compared with the prior art:

[0022] The present application sets the heat preservation cotton around the battery compartment, the heat preservation performance of the heat preservation cotton is strong, the temperature in the battery compartment can be prevented from being affected by the outside, the drainage hole can make the condensed water in the energy storage cabinet flow into the drainage hole through the bottom plate of the battery compartment and then be discharged outside the cabinet, the drainage performance of the energy storage cabinet is improved, the air outlet air duct can improve the heat dissipation performance of the liquid cooling unit and prevent the liquid cooling unit from being de-rated due to the excessively high temperature inside the liquid cooling unit, the fire extinguishing devices arranged in the liquid cooling unit compartment and the high-pressure box compartment can improve the safety performance of the energy storage cabinet, compared with the prior art, the present application improves the heat preservation performance, the heat dissipation performance, the drainage performance and the fire extinguishing performance of the energy storage cabinet as a whole, so that the safety problem and the efficiency problem of the energy storage cabinet caused by the decrease of any of the above performances when the energy storage cabinet faces extreme weather can be avoided, and the safety risk of the energy storage cabinet can be reduced.

[0023] In order to make the above and other objects, features and advantages of the present application more apparent, a preferred embodiment will be described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0025] Figure 1 is a structural diagram of an energy storage cabinet provided by the embodiment of the present application;

[0026] Figure 2 is a partial sectional view of an energy storage cabinet provided by the embodiment of the present application;

[0027] Figure 3 is a structural diagram of an air outlet air duct provided by the embodiment of the present application;

[0028] Figure 4 is a partial perspective view of an energy storage cabinet provided by the embodiment of the present application.

[0029] The above drawings of the drawings: 1, cabinet; 2, battery pack; 3, liquid cooling unit; 4, high voltage box; 5, battery compartment bottom plate; 6, first fire extinguishing device; 7, second fire extinguishing device; 8, fixed plate; 9, baffle; 10, wire slot fixing frame; 11, first liquid discharge valve; 12, double-layer partition plate; 13, sensor; 14, second liquid discharge valve; 15, first cabinet door; 16, second cabinet door; 17, louver; 18, dustproof cotton. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. In addition, the drawings of the present application are only simple schematic illustrations, not the depiction of actual size, and the prior declaration.

[0031] In the utility model, it needs to be explained that, the terms "upper", "lower", "inner", "outer", "forward", "backward", "between", "close to", "far away" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and thus cannot be understood as limiting the utility model. It also needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, and can be directly connected or indirectly connected. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0032] It should be understood that although the terms "first", "second", "third" and the like can be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used herein can include any one or more combinations of the associated listed items.

[0033] Referring to Figures 1-4 The application provides a kind of energy storage cabinet, including cabinet 1, battery compartment is equipped in cabinet 1, liquid cooling unit warehouse and high voltage box warehouse, the battery compartment includes eight battery packs 2 along the height direction of cabinet 1 and the battery compartment bottom plate 5 below eight battery packs 2, the battery compartment side is equipped with thermal insulation cotton, the battery compartment bottom plate 5 is equipped with drain hole, the liquid cooling unit warehouse includes liquid cooling unit 3 and first fire extinguishing device 6, the liquid cooling unit 3 is equipped with the air outlet that air is guided to the outside of cabinet, the air outlet is equipped with air outlet air duct, the high voltage box warehouse includes high voltage box 4 and second fire extinguishing device 7.

[0034] By the above structure, the application improves the heat preservation performance, heat dissipation performance, drainage performance and fire-fighting performance inside the energy storage cabinet as a whole, thereby avoiding the safety problems and efficiency problems of the energy storage cabinet due to the reduction of any of the above performances when facing extreme weather, and reducing the safety risk of the energy storage cabinet.

[0035] Specifically, in the embodiments of the application, the cabinet 1 around the battery compartment side is double-layered, the thermal insulation cotton is arranged in the double-layered cabinet 1 side, so that the front, rear, left, right, upper and lower six surfaces of the battery compartment are provided with thermal insulation cotton, wherein the partition plate close to the battery pack 2 side of the double-layered partition plate is detachable to install and detach the thermal insulation cotton.

[0036] In order to make the thermal insulation cotton have good thermal insulation effect, the thickness of the thermal insulation cotton is set to be greater than or equal to 60 mm. In a possible embodiment, the thermal insulation cotton can be thermal insulation rock wool.

[0037] As shown in Figure 1 The cabinet body 1 is divided into a battery compartment on one side of the double-layer partition plate 12, a liquid cooling unit compartment and a high-voltage box compartment on the other side of the double-layer partition plate 12 by the double-layer partition plate 12 arranged on one side of the battery compartment. The liquid cooling unit compartment is located above the high-voltage box compartment. The double-layer partition plate 12 arranged here not only serves to arrange thermal insulation cotton, but also can avoid the heat generated when the liquid cooling unit 3 is running at full power from being conducted to the battery compartment, so that condensate is generated in the battery compartment. Compared with the arrangement of the conventional single-layer partition plate, the double-layer partition plate and the thermal insulation cotton in the present application have better heat insulation performance, can avoid the continuous generation of condensate in the battery compartment, and can make the dehumidifier run at all times, thereby improving the operation efficiency of the energy storage cabinet.

[0038] In a possible embodiment, a plastic wire coil guard is sleeved on the double-layer partition plate 12 between the battery compartment and the liquid cooling unit compartment, so as to further ensure that the heat in the liquid cooling unit compartment cannot be transmitted to the battery compartment.

[0039] In order to improve the drainage performance of the energy storage cabinet, as shown in Figure 4 The battery compartment bottom plate 5 is inclined towards the drainage hole. Specifically, the battery compartment bottom plate 5 is inclined by 1° to 5° from the first side to the second side, and the drainage hole is arranged close to the second side. Preferably, the battery compartment bottom plate 5 is inclined by 1°, so that the condensate flows into the drainage hole along the battery compartment bottom plate 5 and is then discharged outside the cabinet. It should be noted that the first side and the second side in the above embodiment only represent the inclination direction of the battery compartment bottom plate 5, and do not limit the structure of the battery compartment bottom plate 5. For example, the first side can be the side of the battery compartment bottom plate 5 close to the cabinet body 1, and the second side can be the side of the battery compartment bottom plate 5 away from the cabinet body 1. A person skilled in the art can set the inclination direction of the battery compartment bottom plate 5 according to the actual situation.

[0040] In a possible embodiment, a first liquid drainage valve 11 is arranged on the drainage hole.

[0041] In the embodiment of the present application, the battery compartment bottom plate 5 is provided with a lower recess, the drainage hole is arranged in the lower recess, and the lower recess is provided with a wire slot fixing bracket 10. Thus, the wire harness can be integrated together through the wire slot fixing bracket 10, and the arrangement and installation of the connecting wires are facilitated. Since the wire slot fixing bracket 10 is arranged in the lower recess and has a certain height, the depth of the lower recess cannot be set too low, and the depth set too high will affect the energy density of the energy storage cabinet. The depth of the recess is set to be 37 mm to 47 mm, and preferably, the depth of the recess is set to be 42 mm.

[0042] AsFigure 2 and Figure 4 As shown, the first fire extinguishing device 6 in the liquid cooling unit compartment is located above the liquid cooling unit 3. The first fire extinguishing device 6 stores fire extinguishing medium. In one possible embodiment, the first fire extinguishing device 6 can be a perfluorohexanone fire extinguishing gas cylinder.

[0043] The high-pressure box is equipped with a sensor 13 and a second drain valve 14. The second fire extinguishing device 7 is located above the high-pressure box 4 and stores fire extinguishing medium. In one possible embodiment, the second fire extinguishing device 7 can be an aerosol fire extinguishing device. Since the high-pressure box 4 needs to be waterproof, the high-pressure box 4 is suspended in the high-pressure box and located above the second drain valve 14.

[0044] To further improve the fire protection performance of the energy storage cabinet, the battery compartment is equipped with a fire hydrant. The fire hydrant is located on the side of the cabinet 1 away from the cabinet door and is used to connect the battery pack 2 with the external water fire hydrant.

[0045] like Figure 2 and Figure 3 As shown, in order to improve the heat dissipation performance of the liquid cooling unit 3, an air outlet duct is formed on one side of the liquid cooling unit 3. The air outlet duct includes a fixed plate 8 connected to the liquid cooling unit 3 and a baffle 9 surrounding the fixed plate 8. The baffle 9 extends from the connection point with the fixed plate 8 in a direction away from the fixed plate 8, forming a trumpet shape. The baffle 9, the fixed plate 8 and the air outlet of the liquid cooling unit 3 enclose the air outlet duct. The fixed plate 8 has through holes inside for ventilation. The fixed plate 8 also has through holes for bolts to pass through, thereby connecting and fixing the fixed plate 8 and the baffle 9 to the liquid cooling unit 3.

[0046] like Figure 1 and Figure 4 As shown, the cabinet 1 includes an openable first cabinet door 15 and a second cabinet door 16. The first cabinet door 15 is provided with a mesh, and the side of the first cabinet door 15 facing the inside of the cabinet 1 is provided with a louver 17. The louver 17 is used for waterproofing and heat dissipation. The second cabinet door 16 is provided with a dehumidification device, a fire-fighting device, etc., which will not be described in detail here.

[0047] To prevent dust from entering the high-voltage box, a removable dustproof cotton 18 is provided on the louver 17 opposite to the high-voltage box. The removable dustproof cotton 18 is fitted on the side of the louver 17 facing the inside of the high-voltage box. The dustproof cotton 18 can not only prevent dust, but also further prevent water.

[0048] In one possible embodiment, the dustproof cotton 18 is retractably installed on the louver 17, and the thickness of the dustproof cotton 18 can be set according to the actual situation.

[0049] The principle and implementation mode of the present application are described by using specific examples, and the above examples are only used to help understand the method and core idea of the present application; meanwhile, for those skilled in the art, the specific implementation mode and application range will be changed according to the idea of the present application, and the above description should not be understood as a limitation on the present application.

Claims

1. An energy storage cabinet, comprising a cabinet body, characterized in that, The cabinet interior is equipped with: A battery compartment, comprising at least one battery pack and a battery compartment base plate located below the at least one battery pack, wherein the battery compartment is provided with insulation cotton around its periphery and the battery compartment base plate is provided with drainage holes; The liquid cooling unit compartment includes a liquid cooling unit and a first fire extinguishing device. The liquid cooling unit is provided with an air outlet that leads air to the outside of the cabinet, and the air outlet is provided with an air outlet duct. The high-pressure box compartment includes a high-pressure box and a second fire extinguishing device.

2. The energy storage cabinet according to claim 1, characterized in that, The battery compartment is provided with a double-layer partition, and the insulation cotton is placed inside the double-layer partition. The partition on the side of the double-layer partition closer to the battery pack is removable.

3. The energy storage cabinet according to claim 2, characterized in that, The cabinet interior is divided into a battery compartment on one side of the battery compartment and a liquid cooling unit compartment and a high-voltage box compartment on the other side of the double-layer partition. The liquid cooling unit compartment is located above the high-voltage box compartment. At least the double-layer partition between the battery compartment and the liquid cooling unit compartment is equipped with a protective coil.

4. The energy storage cabinet according to claim 1, characterized in that, The bottom plate of the battery compartment is inclined toward the drainage hole.

5. An energy storage cabinet according to claim 4, characterized in that, The battery compartment bottom plate is inclined at 1° to 5° from the first side to the second side, and the drainage hole is located close to the second side.

6. An energy storage cabinet according to claim 1, characterized in that, The bottom plate of the battery compartment has a recessed portion, the drain hole is located in the recessed portion, and a first drain valve is provided on the drain hole.

7. An energy storage cabinet according to claim 6, characterized in that, The recessed portion has a depth of 37mm to 47mm, and a wire groove fixing bracket is also provided inside the recessed portion.

8. An energy storage cabinet according to claim 1, characterized in that, The air outlet duct includes a fixed plate connected to the liquid cooler unit and a baffle plate surrounding the fixed plate. The baffle plate extends from the connection point with the fixed plate in a direction away from the fixed plate. The fixed plate has through holes. The baffle plate, the fixed plate, and the air outlet of the liquid cooler unit together form the air outlet duct.

9. An energy storage cabinet according to claim 1, characterized in that, The high-pressure box is equipped with a sensor and a second drain valve. The high-pressure box is located above the second drain valve, and the second fire extinguishing device is located above the high-pressure box.

10. An energy storage cabinet according to claim 1, characterized in that, The cabinet includes an openable first cabinet door and a second cabinet door. The first cabinet door has a mesh, and a louver is provided on the side of the first cabinet door facing the interior of the cabinet. At least the louver opposite the high-voltage box is provided with a removable dustproof cotton.

Images