Cabinet body, energy storage device and electric equipment

Abstract

The utility model discloses a cabinet body, an energy storage device and electric equipment, the cabinet body comprises a cabinet body and a heat exchange assembly, the cabinet body is provided with an electrical cabin, and the electrical cabin is used for accommodating an electrical assembly; the heat exchange assembly comprises a heat exchange piece and an air cooling piece, the heat exchange piece and the air cooling piece are contained in the electrical bin, and the air cooling piece is used for driving gas to flow in the electrical bin. The heat exchange assembly is arranged in the electrical bin of the cabinet body, the heat exchange assembly comprises the heat exchange piece and the air cooling piece, the air cooling piece is used for driving gas to flow in the electrical bin, the heat exchange piece exchanges heat with the gas in the electrical bin, environment heat in the cabinet is taken away in time, and the heat exchange efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage devices, and in particular to a cabinet, an energy storage device and electrical equipment. Background Art

[0002] In recent years, with the vigorous development of the new energy field, energy storage devices have been widely used in various fields. Compared with walk-in energy storage products, industrial and commercial energy storage products are used in busy commercial areas with dense personnel. A cabinet integrates battery clusters and electrical equipment, which not only solves the heat dissipation problem of the battery cluster, but also solves the heat dissipation problem of the electrical equipment at the same time.

[0003] At present, the electrical equipment in traditional energy storage products only dissipates heat through air cooling, which has low heat dissipation efficiency. Utility Model Content

[0004] The utility model aims to provide a cabinet, an energy storage device and an electrical device, so as to solve the problem that the cabinet can only dissipate heat through air cooling.

[0005] In order to achieve the purpose of the utility model, the utility model provides the following technical solutions:

[0006] In the first aspect, the utility model provides a cabinet, including a cabinet body and a heat exchange component, the cabinet body has an electrical compartment, and the electrical compartment is used to accommodate the electrical components; the heat exchange component includes a heat exchange component and an air cooling component, the heat exchange component and the air cooling component are accommodated in the electrical compartment, and the air cooling component is connected to the heat exchange component, and the air cooling component is used to drive the gas to flow in the electrical compartment.

[0007] In one embodiment, the electrical compartment includes a first side plate and a second side plate arranged opposite to each other in a first direction, and the heat exchange component includes a first heat exchange component, which is arranged between the electrical component and the first side plate, and the air outlet direction of the first heat exchange component has an angle with the first direction.

[0008] In one embodiment, the angle between the air outlet direction of the first heat exchange component and the first direction is a first angle α, which satisfies: 10°≤α≤40°.

[0009] In one embodiment, the electrical compartment also includes a connecting plate, which is connected between the first side plate and the second side plate, and the connecting plate and the electrical component are spaced apart in a second direction, and the second direction intersects with the first direction; the heat exchange component also includes a second heat exchange component, and the second heat exchange component is arranged between the electrical component and the connecting plate.

[0010] In one embodiment, the angle between the air outlet direction of the second heat exchange component and the second direction is a second angle β, which satisfies: 10°≤β≤40°.

[0011] In one embodiment, the air outlet direction of the first heat exchange component and / or the second heat exchange component is toward the top of the electrical compartment.

[0012] In one embodiment, the cabinet further includes a first liquid cooling plate, which is accommodated in the electrical compartment and is used to contact the electrical components.

[0013] In one embodiment, the heat exchange component includes a first water guiding part, a second water guiding part, heat dissipation fins and a plurality of liquid guiding tubes, the first water guiding part and the second water guiding part are arranged at intervals, the heat dissipation fins are connected to the liquid guiding tubes, the opposite ends of the liquid guiding tubes are respectively connected to the first water guiding part and the second water guiding part, and the plurality of liquid guiding tubes are arranged side by side; the first water guiding part has a water inlet space and a water outlet space, at least one of the liquid guiding tubes is connected to the water inlet space, and at least one of the liquid guiding tubes is connected to the water outlet space.

[0014] In one embodiment, the cabinet also includes a water inlet pipe and a water outlet pipe, the water inlet pipe is used to supply coolant to the first heat exchange component, the second heat exchange component and the first liquid cooling plate, and the coolant of the first heat exchange component, the second heat exchange component and the first liquid cooling plate is used to flow out from the water outlet pipe.

[0015] In one embodiment, the cabinet body also includes a partition, which connects the first side panel, the second side panel and the connecting plate, and divides the cabinet body into the electrical compartment and the battery compartment, and the water inlet pipe and the water outlet pipe are passed through the partition and extend to the electrical compartment and the battery compartment.

[0016] In one embodiment, the cabinet further includes a second liquid cooling plate, which is accommodated in the battery compartment and connected to the water inlet pipe and the water outlet pipe.

[0017] In a second aspect, the utility model further provides an energy storage device, comprising an electrical component and a cabinet as described in any one of the various embodiments of the first aspect, wherein the electrical component is accommodated in an electrical compartment of the cabinet.

[0018] In one embodiment, the electrical component is spaced apart from the electrical compartment.

[0019] In one embodiment, the electrical component includes a PCS device and a BMS device spaced apart in a first direction, and the cabinet includes a first heat exchange component disposed on a side of the PCS device away from the BMS device in the first direction.

[0020] In one embodiment, the cabinet further includes a second heat exchange component, and the second heat exchange component is arranged between the PCS device and the electrical compartment in a second direction, and the second direction intersects with the first direction.

[0021] In one embodiment, the electrical component further includes AC / DC devices and a power distribution device spaced apart in the first direction, the AC / DC devices and the power distribution device are spaced apart from the PCS device in a third direction, and the AC / DC devices and the power distribution device are located on a side of the PCS device away from the bottom of the electrical compartment.

[0022] In one embodiment, the cabinet includes a first liquid cooling plate, and the first liquid cooling plate is arranged on a side of the PCS device and / or the BMS device close to the bottom of the electrical compartment.

[0023] In one embodiment, the energy storage device further includes a detector, which is connected to the cabinet and is used to detect temperature parameters in the electrical compartment.

[0024] In one embodiment, the energy storage device further includes a plurality of battery assemblies, the plurality of battery assemblies are housed in the battery compartment and arranged sequentially along the third direction, and the cabinet includes a plurality of second liquid cooling plates, the plurality of second liquid cooling plates are in corresponding contact with the plurality of battery assemblies.

[0025] In a third aspect, the utility model further provides an electrical equipment, comprising an electrical device and an energy storage device as described in any one of the various embodiments of the second aspect, wherein the energy storage device supplies power to the electrical device.

[0026] By setting a heat exchange component in the electrical compartment of the cabinet body, the heat exchange component includes a heat exchange part and an air cooling part. The air cooling part is used to drive the gas to flow in the electrical compartment. The heat exchange component exchanges heat with the gas in the electrical compartment and takes away the ambient heat in the cabinet in time, thereby improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 is a three-dimensional diagram of a cabinet of an embodiment;

[0029] Figure 2is a front view of an energy storage device according to an embodiment;

[0030] Figure 3 is a side view of an energy storage device according to an embodiment;

[0031] Figure 4 is a three-dimensional diagram of a heat exchange assembly according to an embodiment;

[0032] Figure 5 The present invention is a three-dimensional diagram of a heat exchange element of an embodiment.

[0033] Description of reference numerals:

[0034] 100-Energy storage device;

[0035] 20- electrical components, 21- PCS devices, 22- BMS devices, 23- AC and DC devices, 24- power distribution devices;

[0036] 30-cabinet, 31-cabinet body, 311-electrical compartment, 312-bottom plate, 313-top plate, 314-first side plate, 315-second side plate, 316-partition, 317-battery compartment, 318-connecting plate, 319-first receiving chamber, 32-heat exchange assembly, 321-heat exchange component, 322-air cooling component, 323-first bracket, 324-heat dissipation fins, 325-first water guide part, 326-second water guide part, 327-water inlet, 328-water outlet, 329-second bracket, 33-first heat exchange assembly, 34-second heat exchange assembly, 35-first liquid cooling plate, 36-water inlet pipe, 37-water outlet pipe, 38-second liquid cooling plate. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0039] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as those commonly understood by technicians in the technical field of this utility model. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used in this utility model includes any and all combinations of one or more related listed items.

[0040] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0041] The embodiment of the utility model provides an electric device, including an electric device and an energy storage device in the embodiment of the utility model. The electric device can be a base station, a household power load, etc. The electric device uses the energy storage device in the embodiment of the utility model to power the electric device, which can solve the heat dissipation problem of the device in a closed environment.

[0042] Please refer to Figure 2 The embodiment of the utility model further provides an energy storage device 100, comprising an electrical component 20, a battery component (not shown) and a cabinet 30 in the embodiment of the utility model, wherein the electrical component 20 and the battery component are both accommodated in the cabinet 30. The battery component can be a square laminated battery, a wound battery, and the like.

[0043] Optionally, the battery assembly is accommodated in the cabinet 30. The battery assembly may be one or more. When there are more than one battery assembly, the multiple battery assemblies may be connected in series or in parallel, without any specific limitation.

[0044] Optionally, the electrical component 20 includes at least one of a PCS device 21, a BMS device 22, an AC / DC device 23, and a power distribution device 24. The PCS device 21 is an energy storage converter module, and the BMS device 22 is a battery management system, both of which are commonly used electrical components 20 in the art.

[0045] The energy storage device 100 in the embodiment of the present invention can solve the heat dissipation problem of the equipment in a closed environment by adopting the cabinet 30 in the embodiment of the present invention. The cabinet 30 can ensure a constant temperature environment in the cabinet without being connected to the outside.

[0046] The cabinet 30 in the embodiment of the utility model is described in detail below.

[0047] Please refer to Figure 1 and Figure 4 The utility model provides a cabinet 30, including a cabinet body 31 and a heat exchange component 32. The cabinet body 31 has an electrical compartment 311, and the electrical compartment 311 is used to accommodate the electrical component 20.

[0048] Define the direction first. Please refer to Figure 1 and Figure 2 , X is the first direction, Y is the second direction, and Z is the third direction.

[0049] Optionally, the appearance of the cabinet body 31 can be roughly a cuboid, a cylinder, a cube, etc., without specific limitation.

[0050] Optional, such as Figure 1 As shown, the cabinet body 31 is a rectangular parallelepiped, and the cabinet body 31 includes a bottom plate 312, a top plate 313, a first side plate 314, a second side plate 315 and a connecting plate 318. The connecting plate 318 extends along the third direction Z, the top plate 313 and the bottom plate 312 are respectively connected to the two ends of the connecting plate 318 that are opposite to each other in the third direction Z, and the first side plate 314 and the second side plate 315 are respectively connected to the two ends of the connecting plate 318 that are opposite to each other in the first direction X.

[0051] Optionally, the bottom plate 312 , the top plate 313 , the first side plate 314 , the second side plate 315 and the connecting plate 318 enclose a receiving space, and one end of the receiving space opposite to the connecting plate 318 is open.

[0052] Optionally, the cabinet body 31 is made of a material with high structural strength, specifically metal materials, high-strength plastics, ceramics, etc. Metal materials are aluminum, aluminum alloys, magnesium alloys, iron and iron alloys, etc. The cabinet body 31 can be an integrated structure, that is, the bottom plate 312, the top plate 313, the first side plate 314, the second side plate 315 and the connecting plate 318 are an integrated structure made by an integrated molding process, and the integrated molding process can be specifically stamping, casting, etc., without limitation.

[0053] Optionally, the cabinet body 31 may also be a split structure, and the bottom plate 312, the top plate 313, the first side plate 314, the second side plate 315 and the connecting plate 318 may be connected and fixed by welding, bonding, clamping, screwing, etc. The wall thickness of each part of the cabinet body 31 may be roughly uniform, that is, the thickness of each plate body may be roughly uniform, and the thickness of the bottom plate 312, the top plate 313, the first side plate 314, the second side plate 315 and the connecting plate 318 may also be roughly the same.

[0054] Optionally, the cabinet body 30 further includes a cabinet door (not shown in the figure), which is connected to the opening of the receiving space. When the cabinet door is closed, the cabinet door is opposite to the connecting plate 318 and closes the opening of the receiving space.

[0055] Optionally, the cabinet door and the cabinet body 31 may be connected in a sliding manner, a rotating manner, a snap connection, etc., without any specific limitation.

[0056] Optionally, the cabinet body 31 further includes a partition 316, which connects the first side plate 314, the second side plate 315 and the connecting plate 318, and separates the cabinet body 31 into an electrical compartment 311 and a battery compartment 317. The battery compartment 317 is used to accommodate the battery assembly, and the electrical compartment 311 is used to accommodate the electrical assembly 20.

[0057] Optionally, the top plate 313, the first side plate 314, the second side plate 315, the connecting plate 318 and the partition plate 316 enclose the electrical compartment 311, and the bottom plate 312, the first side plate 314, the second side plate 315, the connecting plate 318 and the partition plate 316 enclose the battery compartment 317. The electrical compartment 311 has a first receiving cavity 319, and the electrical component 20 is received in the first receiving cavity 319 of the electrical compartment 311. The battery compartment 317 has a second receiving cavity (not shown in the figure), and the battery component is received in the second receiving cavity.

[0058] Optionally, the partition 316 is perpendicular to the third direction Z, and the top plate 313, the first side plate 314, the second side plate 315, the connecting plate 318 and the partition 316 enclose an electrical compartment 311, and the bottom plate 312, the first side plate 314, the second side plate 315, the connecting plate 318 and the partition 316 enclose a battery compartment 317.

[0059] Optionally, the material of the partition 316 is similar to that of the side panel, and the partition 316 and the first side panel 314, the second side panel 315 and the connecting plate 318 can be connected by welding, bonding, clamping, etc. without limitation.

[0060] Optional, such as Figure 4 and Figure 5 As shown, the heat exchange assembly 32 includes a heat exchange component 321 and an air cooling component 322 . The heat exchange component 321 and the air cooling component 322 are accommodated in the electrical compartment 311 . The air cooling component 322 is used to drive the gas to flow in the electrical compartment 311 .

[0061] Optionally, the air-cooling component 322 and the heat exchange component 321 are connected as a whole, and the connection method can be welding, bonding, clamping, screwing, etc., without specific limitation.

[0062] Optionally, the heat exchange component 321 includes a first water guide portion 325, a second water guide portion 326, a heat dissipation fin 324 and a plurality of liquid guide tubes (not shown in the figure), the first water guide portion 325 and the second water guide portion 326 are arranged at intervals, the heat dissipation fin 324 is connected to the liquid guide tube, the opposite ends of the liquid guide tube are respectively connected to the first water guide portion 325 and the second water guide portion 326, and the plurality of liquid guide tubes are arranged side by side.

[0063] Optionally, there may be one or more heat dissipation fins 324 , and the specific number is not limited.

[0064] Optionally, the first water guiding part has a water inlet space (not shown in the figure) and a water outlet space (not shown in the figure), at least one liquid guiding tube is connected to the water inlet space, and at least one liquid guiding tube is connected to the water outlet space.

[0065] Optionally, a partition plate (not shown) is provided on the inner wall surface of the first water guide portion 325, and the internal space of the first water guide portion 325 is divided into a water inlet space and a water outlet space. The side wall of the water inlet space is connected to a water inlet 327, and the side wall of the water outlet space is connected to a water outlet 328. The partition plate is arranged between the water inlet 327 and the water outlet 328 to ensure that the inlet and outlet water do not flow in series. The coolant enters the liquid guide pipe from the water inlet 327 through the first water guide portion 325, flows through the second water guide portion 326, and then flows out from the liquid guide pipe from the water outlet 328.

[0066] Optionally, the water inlet 327 and the water outlet 328 are fixed to the side wall of the first water guide portion 325 by welding, and the water outlet type matches the standard quick plug on the market.

[0067] Optionally, the heat exchanger 321 also includes a first bracket 323 and a second bracket 329, which are arranged opposite to each other, and the first bracket 323, the first water guide part 325, the second bracket 329 and the second water guide part 326 are sequentially connected and assembled around the liquid guide tube to form the heat exchanger 321.

[0068] Optionally, a plurality of heat sink fins 324 are connected to the surface of the liquid guide tube. The heat sink fins 324 are wavy and made of 3-series aluminum alloy material with excellent thermal conductivity. The heat of the air can be quickly transferred to the liquid guide tube through the heat sink fins 324, so that the heat is taken away along with the coolant.

[0069] Optionally, both ends of the first water guide part 325 and the second water guide part 326 are reinforced with concave structures to ensure the overall structural strength of the radiator to work normally under complex working conditions; the first bracket 323 and the second bracket 329 are provided with rivet nuts, and the hole positions match the standard axial fan installation hole positions, so that an axial flow motor can be installed on it, and it can also be used as the bracket hole position for installing the entire module, so that the radiator module can be used in various application scenarios.

[0070] The heat exchange component 321 includes a liquid guide tube and a plurality of heat dissipation fins 324, and the opposite ends of the liquid guide tube are respectively connected to the first water guide part 325 and the second water guide part 326, and the first water guide part 325 is connected to a water inlet 327 and a water outlet 328 at intervals on the side opposite to the liquid guide tube; the plurality of heat dissipation fins 324 are connected to the surface of the liquid guide tube, so that the low-temperature coolant can enter the water inlet space of the first water guide part 325 from the water inlet 327, and then enter the liquid guide tube, and bring the air heat passing through the heat dissipation fins 324 into the second water guide part 326, and then return to the water outlet space of the first water guide part 325 through the liquid guide tube, and finally be discharged through the water outlet 328, so as to achieve a rapid reduction in the temperature in the warehouse and control the ambient temperature to be in a relatively constant temperature state.

[0071] Optionally, the air cooling element 322 may be a conventional fan or exhaust fan in the art, and the number of the air cooling element 322 may be one or more, without specific limitation. The air cooling element 322 is used to speed up the air flow in the cabinet, so that the air in the cabinet quickly passes through the heat exchanger fins to improve the heat exchange efficiency.

[0072] For example, Figure 4 As shown, there are three air cooling components 322 .

[0073] Optionally, the air-cooling component 322 and the heat exchange component 321 may be connected by welding, bonding, clamping, screwing, etc., without limitation.

[0074] The cabinet 30 in the embodiment of the utility model is provided with a heat exchange component 32 in the electrical compartment 311 of the cabinet body 31. The heat exchange component 32 includes a heat exchange part 321 and an air cooling part 322. The air cooling part 322 is used to drive the gas to flow in the electrical compartment 311. The heat exchange part 321 exchanges heat with the gas in the electrical compartment 311, which can improve the heat exchange efficiency.

[0075] Optional, such as Figure 1 and Figure 2 As shown, the heat exchange component 32 includes a first heat exchange component 33, which is disposed between the electrical component 20 and the first side plate 314, and an air outlet direction of the first heat exchange component 33 and the first direction X form an angle.

[0076] Optionally, the first heat exchange component 33 is connected to the electrical component 20 and / or the first side plate 314, and the connection method can be welding, bonding, clamping, screwing, etc., without limitation.

[0077] By setting up the first heat exchange component 33, the first heat exchange component 33 is arranged between the electrical component 20 and the first side plate 314, and the air outlet direction of the first heat exchange component 33 has an angle with the first direction X, so that the gas flow can be driven in the first direction X, and heat exchange can be performed with the gas in the electrical compartment 311, so that the ambient heat in the cabinet can be taken away in time, thereby solving the heat dissipation problem of the equipment in a closed environment.

[0078] Optionally, the angle between the air outlet direction of the first heat exchange component 33 and the first direction X is a first angle α, which satisfies: 10°≤α≤40°.

[0079] Optionally, the value of α may be 15°, 20°, 25°, 30°, etc., without specific limitation.

[0080] Optionally, the air outlet direction of the first heat exchange component 33 can be based on the distribution of the electrical components 20. Through thermal simulation analysis, the first heat exchange component 33 can be tilted at a first angle α to blow air toward the top plate 313, and the cold air enters the equipment air duct, driving the air flow circulation in the air duct; at the same time, it also provides a larger space for hot air to enter the heat exchanger component, preventing the hot air from running to the front end of the heat exchanger and interfering with the cold air.

[0081] By setting the angle between the air outlet direction of the first heat exchange component 33 and the first direction X to be the first angle α, satisfying: 10°≤α≤40°, the cold air can better enter the equipment air duct, drive the air circulation in the air duct, and take away the ambient heat in the cabinet in time.

[0082] Optional, such as Figure 1 and Figure 3 As shown, the connecting plate 318 and the electrical component 20 are spaced apart in the second direction Y, and the second direction Y intersects with the first direction X; the heat exchange component 32 also includes a second heat exchange component 34, and the second heat exchange component 34 is arranged between the electrical component 20 and the connecting plate 318.

[0083] Optionally, when the cabinet 30 is a rectangular parallelepiped, the second direction Y is perpendicular to the first direction X.

[0084] Optionally, the second heat exchange component 34 is connected to the electrical component 20 and / or the connecting plate 318, and the connection method can be welding, bonding, clamping, screwing, etc., without limitation.

[0085] Optionally, the air outlet direction of the second heat exchange component 34 and the second direction Y form an angle.

[0086] By setting up a second heat exchange component 34, the second heat exchange component 34 is arranged between the electrical component 20 and the connecting plate 318, and the air outlet direction of the first heat exchange component 33 has an angle with the first direction X, so that the gas flow can be driven in the first direction X, and heat exchange can be performed with the gas in the electrical compartment 311, so that the ambient heat in the cabinet can be taken away in time, thereby solving the heat dissipation problem of the equipment in a closed environment.

[0087] Optionally, the angle between the air outlet direction of the second heat exchange component 34 and the second direction is a second angle β, which satisfies: 10°≤β≤40°.

[0088] Optionally, the value of β may be 15°, 20°, 25°, 30°, etc. The value of β may be the same as or different from the value of α, and there is no specific limitation.

[0089] Optionally, the air outlet direction of the second heat exchange component 34 can be determined according to the distribution of the electrical components 20. Through thermal simulation analysis, the second heat exchange component 34 can be tilted at a second angle β to blow air obliquely toward the top plate 313, and the cold air enters the equipment air duct, driving the air flow circulation in the air duct; at the same time, it also provides a larger space for hot air to enter the heat exchanger component, preventing the hot air from running to the front end of the heat exchanger and interfering with the cold air.

[0090] By setting the angle between the air outlet direction of the second heat exchange component 34 and the second direction Y to the second angle β, the following is satisfied: 10°≤β≤40°, so that the cold air can better enter the equipment air duct, drive the air circulation in the air duct, and take away the ambient heat in the cabinet in time.

[0091] Optionally, the air outlet direction of the first heat exchange component 33 and / or the second heat exchange component 34 is toward the top of the electrical compartment 311, which can dissipate heat for the electrical component 20 and improve the heat dissipation efficiency.

[0092] Optional, such as Figure 1 As shown, the cabinet 30 further includes a first liquid cooling plate 35 , which is received in the electrical compartment 311 and is used to contact the electrical component 20 .

[0093] Optionally, the first liquid cooling plate 35 is a conventional liquid cooling plate in the art. The first liquid cooling plate 35 may contact the outer surface of the electrical component 20, or may be contained in the electrical component 20 and directly contact the internal heat generating components of the electrical component 20, without limitation.

[0094] Optionally, the first liquid cooling plate 35 is in contact with the PCS device 21 in the electrical assembly 20. As the most important component of the electrical compartment 311, the PCS device 21 has the highest heat generation, and the working environment temperature requirement is ≤45°C, which is a relatively high requirement. Therefore, the first liquid cooling plate 35 is in direct contact with the heat-generating components inside the PCS device 21 for heat exchange, which can quickly take away most of the heat and maintain the environment in the cabinet at the working environment temperature of the PCS device 21.

[0095] The cabinet 30 also includes a first liquid cooling plate 35 , which is received in the electrical compartment 311 and is used to contact the electrical components 20 , so that most of the heat can be quickly taken away to maintain a stable ambient temperature in the cabinet.

[0096] Optional, such as Figure 3 and Figure 4 As shown, the cabinet 30 also includes a water inlet pipe 36 and a water outlet pipe 37, and the water inlet pipe 36 and the water outlet pipe 37 are located between the electrical component 20 and the second side plate 315. The water inlet pipe 36 is used to supply coolant to the first heat exchange component 33, the second heat exchange component 34 and the first liquid cooling plate 35, and the coolant of the first heat exchange component 33, the second heat exchange component 34 and the first liquid cooling plate 35 is used to flow out from the water outlet pipe 37.

[0097] Optionally, the water inlet pipe 36 and the water outlet pipe 37 are connected and fixed to the second side plate 315, and the connection method can be welding, bonding, clamping, screwing, etc., without specific limitation.

[0098] Optionally, the water inlet 327 of the first heat exchange component 33 and the second heat exchange component 34 are both connected to the water inlet pipe 36, and the water outlet 328 of the first heat exchange component 33 and the second heat exchange component 34 are both connected to the water outlet pipe 37, so that the coolant enters the water inlet 327 from the water inlet pipe 36, flows through the heat exchange element 321 to take away the ambient heat in the cabinet, and then flows through the water outlet 328 and flows out from the water outlet pipe 37.

[0099] Optionally, the first heat exchange component 33 and the second heat exchange component 34 may be connected to the water inlet pipe 36 and the water outlet pipe 37, respectively, or may be connected in series. For example, the water inlet 327 of the first heat exchange component 33 is connected to the water inlet pipe 36, the water outlet 328 of the first heat exchange component 33 is connected to the water inlet 327 of the second heat exchange component 34, and the water outlet 328 of the second heat exchange component 34 is connected to the water outlet pipe 37, without limitation.

[0100] Optionally, the first liquid cooling plate 35 includes a water inlet channel and a water outlet channel, the water inlet channel is connected to the water inlet pipe 36, and the water outlet channel is connected to the water outlet pipe 37. The first liquid cooling plate 35 can also be connected in series with the aforementioned first heat exchange component 33 and the second heat exchange component 34 to the water inlet pipe 36 and the water outlet pipe 37 without limitation.

[0101] The cabinet body 30 also includes a water inlet pipe 36 and a water outlet pipe 37, which are located between the electrical component 20 and the second side plate 315. The water inlet pipe 36 is used to supply coolant to the first heat exchange component 33, the second heat exchange component 34 and the first liquid cooling plate 35. The coolant of the first heat exchange component 33, the second heat exchange component 34 and the first liquid cooling plate 35 is used to flow out from the water outlet pipe 37. The heat of the ambient air can be transferred to the coolant through the liquid cooling plate, and the heat is carried away by the coolant. The use of coolant instead of air has higher heat dissipation efficiency and more accurate temperature difference control than air medium, which can ensure that the ambient temperature in the cabinet is closer to a constant temperature state.

[0102] Optional, such as Figure 3 As shown, the water inlet pipe 36 and the water outlet pipe 37 are passed through the partition 316 and extend to the electrical compartment 311 and the battery compartment 317 .

[0103] Optionally, the partition 316 is provided with a first mounting port (not shown in the figure) and a second mounting port (not shown in the figure), the first mounting port is cooperatively connected to the water inlet pipe 36, and the second mounting port is cooperatively connected to the water outlet pipe 37. The connection method can be welding, bonding, clamping, screwing, etc., without specific limitation.

[0104] By setting a water inlet pipe 36 and a water outlet pipe 37 that pass through the partition 316 and extend to the electrical compartment 311 and the battery compartment 317, the coolant in the liquid cooling plate in the electrical compartment 311 and the battery compartment 317 is discharged through the water inlet pipe 36 and the water outlet pipe 37, and the structure is simple.

[0105] Optional, such as Figure 3 As shown, the cabinet 30 further includes a second liquid cooling plate 38 , which is received in the battery compartment 317 and connected to the water inlet pipe 36 and the water outlet pipe 37 .

[0106] Optionally, the second liquid cooling plate 38 is similar in structure to the aforementioned first liquid cooling plate 35 , and both are commonly used liquid cooling plates in the art, and are not specifically limited.

[0107] Optionally, the second liquid cooling plate 38 includes a water inlet channel and a water outlet channel, the water inlet channel is connected to the water inlet pipe 36 , and the water outlet channel is connected to the water outlet pipe 37 .

[0108] The cabinet 30 also includes a second liquid cooling plate 38, which is accommodated in the battery compartment 317 and connected to the water inlet pipe 36 and the water outlet pipe 37. The coolant in the second liquid cooling plate 38 can take away the ambient temperature in the battery compartment 317 and maintain the ambient temperature in the sealed battery compartment 317 stable.

[0109] Optionally, there are multiple battery assemblies, which are housed in the battery compartment 317 and arranged in sequence along the third direction Z. The cabinet 30 includes multiple second liquid cooling plates 38, and the multiple second liquid cooling plates 38 are in corresponding contact with the multiple battery assemblies.

[0110] Optionally, the water inlet pipe 36 in the battery compartment 317 is connected to multiple branch water inlet pipes 36, the water outlet pipe 37 is connected to multiple branch water pipes 37, and multiple second liquid cooling plates 38 are respectively connected to the branch water inlet pipes 36 and the branch water pipes 37, so that the coolant flows from the branch water inlet pipes 36 into the second liquid cooling plates 38 and flows out from the branch water pipes 37.

[0111] Optionally, multiple battery assemblies are arranged at intervals along a third direction Z, and multiple second liquid cooling plates 38 are respectively in contact with the upper and lower battery assemblies adjacent to each other in the third direction Z for heat exchange. The coolant flowing into the second liquid cooling plate 38 from the branch water inlet pipe 36 takes away the heat of the battery assemblies in time, and the heated coolant flows out from the branch water pipe 37 of the second liquid cooling plate 38, flows along the branch water pipe 37 to the outlet pipe 37 and returns to the inside of the air conditioner, and is discharged out of the cabinet through heat exchange.

[0112] Optionally, thermally conductive silicone may be provided between the battery assembly and the second liquid cooling plate 38 to make the contact between the battery assembly and the second liquid cooling plate 38 more complete, leaving no suspended gap between the battery assembly and the second liquid cooling plate 38, thereby ensuring the maximum contact area and achieving the best heat dissipation effect.

[0113] By arranging multiple battery assemblies to be accommodated in the battery compartment 317 and arranged in sequence along the third direction Z, the cabinet 30 includes multiple second liquid cooling plates 38, and the multiple second liquid cooling plates 38 are in corresponding contact with the multiple battery assemblies. The cooling liquid flowing through the second liquid cooling plates 38 can take away the heat of the battery assemblies in the battery compartment 317, and the ambient temperature in the compartment can be maintained stable without connecting to the outside world.

[0114] Optionally, the electrical component 20 is spaced apart from an inner wall of the electrical compartment 311 .

[0115] The electrical component 20 is spaced apart from the inner wall of the electrical compartment 311 to facilitate airflow through the heat exchange component 32 and heat exchange, thereby better removing ambient heat from the electrical compartment 311 and ensuring a constant temperature environment in the cabinet.

[0116] Optional, such as Figure 2 and Figure 3 As shown, the electrical component 20 includes a PCS device 21 and a BMS device 22 spaced apart in a first direction X, and the first heat exchange component 33 is disposed on a side of the PCS device 21 away from the BMS device 22 in the first direction.

[0117] Since the PCS device 21 generates a large amount of heat, the heat exchange component 32 is placed as close to the PCS device 21 as possible in the first direction X to ensure that the PCS device 21 is surrounded by low-temperature cold air to ensure that the PCS device 21 can work normally and fully.

[0118] Optionally, the second heat exchange component 34 is arranged between the PCS device 21 and the electrical compartment 311 in the second direction Y, and can ensure that the PCS device 21 is surrounded by low-temperature cold air in the first direction X and the second direction Y at the same time, so as to meet the normal and full-load operation of the PCS device 21.

[0119] Optionally, the electrical component 20 also includes AC / DC devices 23 and distribution devices 24 spaced apart in a first direction X, the AC / DC devices 23 and distribution devices 24 are spaced apart from the PCS device 21 in a third direction Z, and the AC / DC devices 23 and distribution devices 24 are located on the side of the PCS device 21 away from the bottom of the electrical compartment 311.

[0120] Optionally, the PCS device 21, as the most important component of the electrical compartment 311, has the highest heat generation, and the working environment temperature is required to be ≤45°C. Therefore, the embodiment of the utility model focuses on ensuring that the air temperature around the PCS device 21 is lower than 45°C, and the heat exchange component 32 is placed as close to the PCS device 21 as possible in the X and Y directions to ensure that the PCS device 21 is surrounded by low-temperature cold air to meet the normal and full-load operation of the PCS device 21. In order to take into account the distribution devices 24 and AC / DC devices 23 above which generate less heat, the first heat exchange component 33 is placed in the first direction X at 1 / 4 below the top of the PCS device 21, tilted 20° upward to face the upper and lower air ducts between the AC / DC devices 23 and / or the distribution devices 24 and the PCS device 21; the second heat exchange component 34 is placed in the second direction Y at the cross intersection of the air duct and the upper and lower air ducts between the PCS device 21 and the BMS device 22, at a height of 1 / 4 below the top of the PCS device 21, tilted 28° upward to face the cross intersection of the air ducts. This placement ensures that the heat exchange component 32 in the electrical compartment 311 blows out cold air in both the first direction X and the second direction Y, most of which blows on the outer casing of the PCS device 21, which can take away the heat of the outer casing of the PCS device 21, and another part of the cold air is transmitted along the air duct to the BMS device 22, the distribution devices 24 and the AC / DC devices 23.

[0121] Optionally, the BMS device 22 is the second largest component in the electrical compartment 311 in terms of heat generation. Although it generates a large amount of heat, it does not require a high temperature for the working environment, and has its own cooling fan for heat dissipation, so it does not require a lot of cold air for heat dissipation. Therefore, the cold air blown out by the first heat exchange component 33 in the first direction X is sent to the air inlet of the BMS device 22 through the middle air duct, and the second heat exchange component 34 allocates about 1 / 4 of the blowing area in the second direction Y to the BMS device 22, and 3 / 4 of the blowing area to the PCS device 21. The cooling fan of the BMS device 22 has only an exhaust direction, which is mainly used to take away the heat of the circuit board components of the BMS device 22. There is an air inlet in the air inlet direction, and the cold air is directly supplemented by the air cooling part 322 of the second heat exchange component 34. The cold air of the second heat exchange component 34 is blown through the heat dissipation fins 324 of the circuit board by the axial flow fan to take away the heat. The exhaust fan of the BMS device 22 on the other side discharges the hot air to the electrical compartment 311, and returns to the rear air intake duct of the second heat exchange component 34 along the air duct, and heat exchange is carried out through the fins of the heat exchange part 321 of the second heat exchange component 34 to take away the heat and blow out a cold air circulation.

[0122] Optionally, the AC / DC device 23 includes components such as AC output voltage, copper busbar, and switch, which generate less heat and have lower requirements on the temperature of the working environment, so only the heat dissipation cycle in the first direction X is considered. The bottom and both sides of the AC / DC device 23 are equipped with cooling fans. In the first direction X, cold air is sucked into the cold air from the bottom and right air duct of the AC / DC device 23 and enters the inside of the casing to dissipate heat for the components. The right fan discharges the internal hot air in time and returns to the air intake duct behind the heat exchanger 321 of the first heat exchange assembly 33 along the air duct. The heat is taken away through the fin heat exchange of the heat exchanger 321, and the cold air is blown out for circulation.

[0123] Optionally, the power distribution device 24 is a main low-voltage component, generates less heat, and has a lower temperature requirement for the working environment, and the bottom and both sides of the power distribution device 24 are equipped with cooling fans. In the first direction X, cold air is sucked in from the bottom and left air duct of the power distribution device 24, enters the inside of the housing, and dissipates heat for the components, and the right fan discharges the internal hot air in time; in the second direction Y, cold air is sucked in from the bottom air duct, enters the inside of the housing, and dissipates heat for the components, and then discharged from the left cooling fan, and returns to the rear air intake duct of the heat exchanger 321 of the second heat exchange assembly 34 along the air duct, and heat is taken away through the fin heat exchange of the heat exchanger 321, and the cold air is blown out for circulation.

[0124] Optionally, the first liquid cooling plate 35 is disposed on one side of the PCS device 21 and / or the BMS device 22 close to the bottom of the electrical compartment 311 , and can dissipate heat for the PCS device 21 .

[0125] Optionally, the first liquid cooling plate 35 only dissipates heat for the PCS device 21 , or the first liquid cooling plate 35 only dissipates heat for the BMS device 22 , or the first liquid cooling plate 35 dissipates heat for both the PCS device 21 and the BMS device 22 , without specific limitation.

[0126] The electrical component 20 includes a PCS device 21 and a BMS device 22 spaced apart in a first direction X, the first heat exchange component 33 is disposed on a side of the PCS device 21 away from the BMS device 22 in the first direction, the electrical component 20 also includes an AC / DC device 23 and a distribution device 24 spaced apart in the first direction X, the AC / DC device 23 and the distribution device 24 are spaced apart from the PCS device 21 in a third direction, and the AC / DC device 23 and the distribution device 24 are located on a side of the PCS device 21 away from the bottom of the electrical compartment 311, the electrical component 20 and the inner wall of the electrical compartment 311 have a gap, and a multi-layer air path can be formed in the first direction X and the second direction Y for heat dissipation, the circulation resistance is small, the heat is dissipated in the sealed electrical compartment 311, and the safety factor is high.

[0127] Optionally, the energy storage device 100 further includes a detector (not shown in the figure), which is connected to the cabinet 30 and is used to detect temperature parameters in the electrical compartment 311 .

[0128] Optionally, the detector is a temperature detector commonly used in the art, without specific limitation.

[0129] By providing a detector in the electrical compartment 311, which is connected to the cabinet body 30 and used to detect the temperature parameters in the electrical compartment 311, the temperature in the cabinet can be controlled above the dew point to avoid a large difference between the ambient temperature in the cabinet and the equipment temperature, which would cause condensation and damage the equipment.

[0130] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0131] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A cabinet, It is characterized in that include: The cabinet body has an electrical compartment, and the electrical compartment is used to accommodate electrical components; The heat exchange component comprises a heat exchange part and an air cooling part. The heat exchange part and the air cooling part are accommodated in the electrical compartment, and the air cooling part is connected to the heat exchange part. The air cooling part is used to drive the gas to flow in the electrical compartment.

2. The cabinet according to claim 1, It is characterized in that The electrical compartment includes a first side plate and a second side plate arranged opposite to each other in a first direction, and the heat exchange component includes a first heat exchange component, which is arranged between the electrical component and the first side plate, and the air outlet direction of the first heat exchange component has an angle with the first direction.

3. The cabinet according to claim 2, It is characterized in that An angle between the air outlet direction of the first heat exchange component and the first direction is a first angle α, which satisfies: 10°≤α≤40°.

4. The cabinet according to claim 2, It is characterized in that The electrical compartment also includes a connecting plate, which is connected between the first side plate and the second side plate, and the connecting plate and the electrical component are spaced apart in a second direction, and the second direction intersects with the first direction; the heat exchange component also includes a second heat exchange component, and the second heat exchange component is arranged between the electrical component and the connecting plate.

5. The cabinet according to claim 4, It is characterized in that An angle between the air outlet direction of the second heat exchange component and the second direction is a second angle β, which satisfies: 10°≤β≤40°.

6. The cabinet according to claim 4, It is characterized in that The air outlet direction of the first heat exchange component and / or the second heat exchange component is toward the top of the electrical compartment.

7. The cabinet according to claim 4, It is characterized in that The cabinet also includes a first liquid cooling plate, which is accommodated in the electrical compartment and is used to contact the electrical components.

8. The cabinet according to claim 1, It is characterized in that The heat exchange component includes a first water guide part, a second water guide part, heat dissipation fins and a plurality of liquid guide tubes, the first water guide part and the second water guide part are arranged at intervals, the heat dissipation fins are connected to the liquid guide tubes, the opposite ends of the liquid guide tubes are respectively connected to the first water guide part and the second water guide part, and the plurality of liquid guide tubes are arranged side by side; the first water guide part has a water inlet space and a water outlet space, at least one of the liquid guide tubes is connected to the water inlet space, and at least one of the liquid guide tubes is connected to the water outlet space.

9. The cabinet according to claim 7, It is characterized in that The cabinet also includes a water inlet pipe and a water outlet pipe, the water inlet pipe is used to supply coolant to the first heat exchange component, the second heat exchange component and the first liquid cooling plate, and the coolant of the first heat exchange component, the second heat exchange component and the first liquid cooling plate is used to flow out from the water outlet pipe.

10. The cabinet according to claim 9, It is characterized in that The cabinet body also includes a partition, which connects the first side panel, the second side panel and the connecting panel and divides the cabinet body into the electrical compartment and the battery compartment. The water inlet pipe and the water outlet pipe are passed through the partition and extend to the electrical compartment and the battery compartment.

11. The cabinet according to claim 10, It is characterized in that The cabinet also includes a second liquid cooling plate, which is accommodated in the battery compartment and connected to the water inlet pipe and the water outlet pipe.

12. An energy storage device, It is characterized in that It comprises an electrical component and a cabinet as claimed in any one of claims 1 to 11, wherein the electrical component is accommodated in an electrical compartment of the cabinet.

13. The energy storage device according to claim 12, It is characterized in that The electrical component is spaced apart from the electrical compartment.

14. The energy storage device according to claim 13, It is characterized in that The electrical component includes a PCS device and a BMS device that are spaced apart in a first direction. The cabinet includes a first heat exchange component that is disposed on a side of the PCS device away from the BMS device in the first direction.

15. The energy storage device according to claim 14, It is characterized in that The cabinet also includes a second heat exchange component, which is arranged between the PCS device and the electrical compartment in a second direction, and the second direction intersects with the first direction.

16. The energy storage device according to claim 14 or 15, It is characterized in that The electrical component also includes AC / DC devices and distribution devices spaced apart in the first direction, the AC / DC devices and the distribution devices are spaced apart from the PCS devices in the third direction, and the AC / DC devices and the distribution devices are located on the side of the PCS devices away from the bottom of the electrical compartment.

17. The energy storage device according to claim 16, It is characterized in that The cabinet includes a first liquid cooling plate, which is arranged on a side of the PCS device and / or the BMS device close to the bottom of the electrical compartment.

18. The energy storage device according to claim 12, It is characterized in that The energy storage device also includes a detector, which is connected to the cabinet and is used to detect temperature parameters in the electrical compartment.

19. The energy storage device according to claim 17, It is characterized in that The energy storage device further includes a plurality of battery assemblies, which are accommodated in the battery compartment and arranged in sequence along the third direction. The cabinet includes a plurality of second liquid cooling plates, which are in corresponding contact with the plurality of battery assemblies.

20. An electrical device, It is characterized in that It comprises an electric device and an energy storage device as claimed in any one of claims 12 to 19, wherein the energy storage device supplies power to the electric device.

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