Direct cooling type industrial and commercial energy storage device

Abstract

The utility model discloses a direct cooling type industrial and commercial energy storage device which comprises a heat preservation cabinet body, a heat preservation door body, a direct cooling module, a plurality of batteries PACK, a battery PCS, a distribution box, a plurality of battery direct cooling plate parallel branches and a PCS direct cooling plate branch. The plurality of batteries PACK are arranged in the first equipment cabin at intervals up and down; the battery PCS and the distribution box are arranged in the second equipment bin; the battery direct cooling plates and the batteries PACKs are arranged in a one-to-one correspondence manner; and the PCS direct cooling plate and the battery PCS are correspondingly arranged. According to the utility model, the heat dissipation efficiency and the response speed can be effectively improved, a ventilation structure does not need to be arranged in a battery PCS installation area, the safety problem caused by water and dust can be avoided, and the structure in the cabinet is compact.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, in particular to a structural improvement of an industrial and commercial energy storage device. Background Art

[0002] Industrial and commercial energy storage is developing rapidly. If the battery temperature in the energy storage system is too high or too low, it will reduce the performance and life of the battery, and even cause safety accidents such as combustion and explosion. If the temperature of the energy storage converter (PCS) is out of control, it will cause the system to crash. Efficient and reliable temperature control solutions are an important guarantee for the safe operation of the entire system.

[0003] At present, the temperature control solutions for energy storage systems are usually air-cooled and liquid-cooled. The air-cooled temperature control solution has the disadvantages of poor temperature uniformity, high power consumption, low heat exchange efficiency, complex structure due to air ducts, and low space utilization. Battery temperature control usually adopts liquid-cooled temperature control solutions. Liquid-cooled temperature control solutions can effectively improve the shortcomings of air-cooled temperature control solutions, but the essence of its heat exchange is secondary heat exchange through the water system, which has problems such as energy loss, slow response, and leakage, and the initial investment cost is high.

[0004] At present, most PCSs of industrial and commercial energy storage devices adopt air-cooling solutions, which require the design of ventilation holes and waterproof and dustproof structures at the corresponding positions of the cabinet, increasing the cost of the cabinet. Even if the cabinet is equipped with a protective structure, water and dust may still enter, which will affect the normal operation of the PCS and even cause safety accidents. The cabinet has added a waterproof and dustproof structure, resulting in excessive wind resistance and poor heat dissipation effect of the PCS.

[0005] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] In view of the problems pointed out in the background technology, the utility model proposes a direct-cooling industrial and commercial energy storage device to improve the heat dissipation efficiency and response speed, and eliminate the ventilation structure in the PCS installation area to avoid safety problems caused by water and dust.

[0007] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0008] In some embodiments of the present application, a direct-cooling industrial and commercial energy storage device is provided, comprising:

[0009] The insulation cabinet has a cabinet opening on the front side, the internal space of the insulation cabinet is divided into an air conditioning compartment and an equipment compartment isolated from each other, and the equipment compartment is divided into a first equipment compartment and a second equipment compartment; a rear vent hole communicating with the air conditioning compartment is provided on the back panel of the insulation cabinet;

[0010] A heat preservation door body cooperates with the cabinet opening of the heat preservation cabinet body to open and close the heat preservation cabinet body, a front vent hole is provided on the heat preservation door body at a position corresponding to the air conditioning compartment, and the front vent hole is equipped with a waterproof and dustproof device; a sealing member is provided between the heat preservation door body and the heat preservation cabinet body;

[0011] A direct cooling module is arranged in the air conditioning compartment; the direct cooling module comprises a shell and a compressor, a heat exchanger, a regenerator, an electric control box and a heat dissipation fan located in the shell, a front side plate of the shell is provided with an air return port, and a rear side plate is provided with an air outlet, and the compressor, heat exchanger and regenerator are connected in sequence through pipelines to form a refrigerant circulation loop;

[0012] A plurality of battery PACKs are arranged in the first equipment compartment at intervals in upper and lower parts;

[0013] A battery PCS, which is arranged in the second equipment compartment;

[0014] A distribution box, which is arranged in the second equipment compartment;

[0015] A plurality of parallel branches of battery direct cooling plates are connected in parallel between a total input end and a total output end, the total input end is connected to the first port of the first channel of the regenerator, and the total output end is connected to the first port of the second channel of the regenerator; each of the parallel branches of the battery direct cooling plates is connected to a battery direct cooling plate, and an electronic expansion valve is respectively provided at the inlet and outlet of each of the battery direct cooling plates, and the battery direct cooling plates are provided in a one-to-one correspondence with the battery PACK;

[0016] A PCS direct cooling plate branch has one end connected to the first port of the first channel of the heat regenerator, and the other end connected to the first port of the second channel of the heat regenerator; the PCS direct cooling plate branch is connected to a PCS direct cooling plate, and electronic expansion valves are respectively provided at the inlet and outlet of the PCS direct cooling plate, and the PCS direct cooling plate is arranged corresponding to the battery PCS.

[0017] In some embodiments of the present application, the waterproof and dustproof device includes a waterproof shutter and dustproof cotton, the dustproof cotton is located on the front side of the waterproof shutter and covers the front ventilation hole, and an air inlet grille is installed on the front ventilation hole.

[0018] In some embodiments of the present application, the air-conditioning compartment and the equipment compartment are separated by a horizontally placed partition plate, the front side edge of the partition plate is formed with an L-shaped bending portion that is bent downward, the horizontal portion of the L-shaped bending portion is located on the front side of its vertical portion, the front edge of the horizontal portion of the L-shaped bending portion is formed with an upward-bending vertical flange, the vertical flange and the left front side, right front side and lower front side of the equipment compartment form a coplanar annular flange-shaped door frame, the annular flange-shaped door frame is surrounded by a sealing strip, and the sealing strip is used to seal with the thermal insulation door body to ensure the sealing of the equipment compartment.

[0019] In some embodiments of the present application, an upwardly protruding air-conditioning support position is formed on the left and right sides of the partition plate, and a guide rail extending forward and backward is respectively formed on the two air-conditioning support positions. The two guide rails cooperate to form a guide channel. The direct cooling module is inserted into the air-conditioning compartment through the guide channel, and is supported on the air-conditioning support positions by the left and right sides of its bottom surface.

[0020] In some embodiments of the present application, an upwardly protruding limit baffle is formed on the rear end of the air-conditioning support position, and when the direct cooling module is inserted into place, its shell rests against the limit baffle; the front side panel of the shell of the direct cooling module is provided with push-pull handles located on the outside of the left and right ends of the return air outlet.

[0021] In some embodiments of the present application, inclined portions are formed at the front and rear sections of the guide rail so that both ends of the guide channel are flared.

[0022] In some embodiments of the present application, the distribution box is located below the battery PCS.

[0023] In some embodiments of the present application, a plurality of strip support plates extending forward and backward are fixedly provided on the left and right side walls of the first equipment compartment at intervals along the height direction of the insulation cabinet, and the plurality of strip support plates on the left and right side walls are symmetrically arranged with each other, and the left and right sides of the battery direct cooling plate and the left and right sides of the PCS direct cooling plate are correspondingly fixed on the strip support plates.

[0024] In some embodiments of the present application, the air outlet extends left and right, and two heat dissipation fans are arranged on the left and right, and are arranged between the heat exchanger and the air outlet; the two heat dissipation fans are installed on the same fan bracket, and the fan bracket includes a main mounting plate extending left and right and two left U-shaped brackets arranged on the rear side of the main mounting plate, the open end of the U-shaped bracket is fixedly connected to the main mounting plate, and the two U-shaped brackets are inclined, and the inclination directions are consistent; the suction end of the heat dissipation fan is fixedly connected to the main mounting plate, and the air outlet end is fixedly connected to the bottom plate of the U-shaped bracket, and the main mounting plate is provided with a through portion corresponding to the suction end of the two heat dissipation fans.

[0025] In some embodiments of the present application, a direct-cooling industrial and commercial energy storage device includes:

[0026] The thermal insulation cabinet has a cabinet opening on its front side, the internal space of the thermal insulation cabinet is divided into an air conditioning compartment and an equipment compartment isolated from each other, and the equipment compartment is divided into a first equipment compartment and a second equipment compartment; the back panel of the thermal insulation cabinet is divided into a detachable air conditioning compartment back panel, a first detachable equipment compartment back panel and a second detachable equipment compartment back panel corresponding to the air conditioning compartment, the first equipment compartment and the second equipment compartment, and the detachable air conditioning compartment back panel is provided with a rear ventilation hole connected to the air conditioning compartment;

[0027] A heat preservation door body cooperates with the cabinet opening of the heat preservation cabinet body to open and close the heat preservation cabinet body, a front vent hole is provided on the heat preservation door body at a position corresponding to the air conditioning compartment, and the front vent hole is equipped with a waterproof and dustproof device; a sealing member is provided between the heat preservation door body and the heat preservation cabinet body;

[0028] A direct cooling module is arranged in the air conditioning compartment; the direct cooling module comprises a shell and a compressor, a heat exchanger, a regenerator, an electric control box and a heat dissipation fan located in the shell, a front side plate of the shell is provided with an air return port, and a rear side plate is provided with an air outlet, and the compressor, heat exchanger and regenerator are connected in sequence through pipelines to form a refrigerant circulation loop;

[0029] A plurality of battery PACKs are arranged in the first equipment compartment at intervals in upper and lower parts;

[0030] A battery PCS, which is arranged in the second equipment compartment;

[0031] A distribution box, which is arranged in the second equipment compartment;

[0032] A plurality of parallel branches of battery direct cooling plates are connected in parallel between a total input end and a total output end, the total input end is connected to the first port of the first channel of the regenerator, the total output end is connected to the first port of the second channel of the regenerator, each of the parallel branches of the battery direct cooling plates is connected to a battery direct cooling plate, and an electronic expansion valve is respectively provided at the inlet and outlet of each of the battery direct cooling plates, and the battery direct cooling plates are provided in one-to-one correspondence with the battery PACK;

[0033] A PCS direct cooling plate branch has one end connected to the first port of the first channel of the heat regenerator and the other end connected to the first port of the second channel of the heat regenerator. The PCS direct cooling plate branch is connected to a PCS direct cooling plate. Electronic expansion valves are respectively provided at the inlet and outlet of the PCS direct cooling plate. The PCS direct cooling plate is provided corresponding to the battery PCS.

[0034] Compared with the prior art, the advantages and positive effects of the utility model are:

[0035] 1. The utility model direct cooling type industrial and commercial energy storage device uses the refrigerant of the direct cooling module to directly enter the battery direct cooling plate and PCS direct cooling plate to dissipate heat for the battery cells inside the battery PACK and the internal components of the battery PCS, avoiding energy loss caused by secondary heat exchange, and effectively improving heat dissipation efficiency and response speed;

[0036] 2. Direct cooling is adopted for heat dissipation, so the installation area corresponding to the battery PCS in the direct cooling industrial and commercial energy storage device of the utility model does not need to be provided with a ventilation structure, which can avoid safety problems caused by water and dust;

[0037] 3. Partition the internal space of the insulation cabinet to reasonably install and arrange the direct cooling module and energy storage equipment (battery PACK, battery PCS, distribution box), so that the internal structure of the cabinet is compact. The air-conditioning compartment is located at the top. The air-conditioning compartment can be added by increasing the height of the energy storage device, which does not occupy the installation space of the energy storage equipment and does not increase the floor space;

[0038] 4. The direct cooling module is an integral module, which is convenient for disassembly, assembly and maintenance of the whole machine.

[0039] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0041] Figure 1 It is a schematic diagram of the structure of a direct-cooling industrial and commercial energy storage device from a front side perspective according to an embodiment;

[0042] Figure 2 It is a schematic diagram of the structure of a direct-cooling industrial and commercial energy storage device from a rear side perspective according to an embodiment;

[0043] Figure 3 This is a schematic diagram of the structure from the front side rear view of the direct cooling type industrial and commercial energy storage device according to the embodiment with the cabinet door omitted;

[0044] Figure 4 for Figure 3 A magnified view of part A;

[0045] Figure 5 A direct cooling system diagram of a direct cooling type industrial and commercial energy storage device according to an embodiment;

[0046] Figure 6 Schematic diagram of the structure of a partition plate of a direct-cooling industrial and commercial energy storage device according to an embodiment;

[0047] Figure 7 It is a schematic structural diagram of a direct cooling module of a direct cooling type industrial and commercial energy storage device according to an embodiment from a front side perspective;

[0048] Figure 8 It is a schematic diagram of the structure from the rear side of a direct cooling module of a direct cooling type industrial and commercial energy storage device according to an embodiment;

[0049] Fig. 9 It is a structural schematic diagram of a direct cooling module of a direct cooling type industrial and commercial energy storage device according to an embodiment, with the front side plate and the top plate omitted;

[0050] Fig.10 This is a structural schematic diagram of another perspective of a direct cooling module of a direct cooling type industrial and commercial energy storage device according to an embodiment after omitting the front side plate and the top plate;

[0051] Fig.11 It is a structural schematic diagram of a direct cooling module of a direct cooling type industrial and commercial energy storage device according to an embodiment, in which the front side plate, the top plate and the first side plate of the left side plate are omitted;

[0052] Fig.12 It is a structural schematic diagram of a direct cooling module of a direct cooling type industrial and commercial energy storage device according to an embodiment, after omitting the front side plate, the top plate, the first side plate of the left side plate and the electric control box cover;

[0053] Fig.13 This is a schematic structural diagram of a direct cooling module of a direct cooling type industrial and commercial energy storage device according to an embodiment after omitting the front side plate, the top plate and the rear side plate;

[0054] Fig.14 Schematic diagram of the structure of a battery direct cooling plate of a direct cooling type industrial and commercial energy storage device according to an embodiment.

[0055] Reference numerals:

[0056] 100, thermal insulation cabinet; 110, air conditioning compartment; 120, first equipment compartment; 130, second equipment compartment; 140, thermal insulation door; 150, front vents; 160, rear vents; 170, annular flanged door frame; 180, strip support plate; 190, detachable air conditioning compartment back plate; 1100, first detachable equipment compartment back plate; 1110, second detachable equipment compartment back plate;

[0057] 200, direct cooling module; 210, shell; 211, first side plate; 212, second side plate; 213, return air port; 214, air outlet; 220, compressor; 230, heat exchanger; 240, regenerator; 241, first channel first port; 242, second channel first port; 243, first channel second port; 244, second channel second port; 250, electric control box; 251, electric control box cover; 252, radiator; 260, cooling fan; 270, electronic expansion valve; 280, liquid storage tank; 290, oil separator; 2100, air avoidance; 2110, fan bracket; 2111, main mounting plate; 2112, U-shaped bracket; 2120, installation angle code; 2130, push-pull handle;

[0058] 300, battery direct cooling plate; 310, refrigerant inlet; 320, refrigerant outlet; 330, screw hole;

[0059] 400, PCS direct cooling plate;

[0060] 500. Distribution box;

[0061] 600, partition plate; 610, L-shaped bending portion; 620, vertical flange; 630, air conditioner support position; 640, guide rail; 641, inclined portion; 650, limit baffle;

[0062] 700, battery direct cooling plate parallel branch;

[0063] 800, PCS direct cooling plate branch;

[0064] 900, battery PACK;

[0065] 1000,Battery pcs. DETAILED DESCRIPTION

[0066] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0067] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0068] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0069] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0070] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0071] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0072] Reference Figure 1 and Figure 5In some embodiments of the present application, a direct cooling industrial and commercial energy storage device is proposed, including an insulation cabinet 100, an insulation door 140, a direct cooling module 200, multiple battery PACKs 900, a battery PCS 1000, a distribution box 500, multiple battery direct cooling plate parallel branches 700, PCS direct cooling plate branches 800, a battery direct cooling plate 300 and a PCS direct cooling plate 400.

[0073] The heat preservation cabinet 100 is usually a rectangular cabinet, the front side of which is open to form a cabinet opening, and the internal space of the heat preservation cabinet 100 is divided into an air conditioning compartment 110 and an equipment compartment that are isolated from each other, that is, the air conditioning compartment 110 and the equipment compartment are independent of each other and arranged along the height direction of the cabinet, such as the air conditioning compartment 110 is on the top and the equipment compartment is on the bottom; or the equipment compartment is on the top and the air conditioning compartment 110 is on the bottom. The equipment compartment is divided into a first equipment compartment 120 and a second equipment compartment 130, the first equipment compartment 120 is on the top and the second equipment compartment 130 is on the bottom, or the second equipment compartment 130 is on the top and the first equipment compartment 120 is on the bottom; a rear vent 160 connected to the air conditioning compartment 110 is provided on the back panel of the heat preservation cabinet 100.

[0074] The thermal insulation door body 140 cooperates with the cabinet opening of the thermal insulation cabinet body 100 to open and close the thermal insulation cabinet body 100. A front ventilation hole 150 is provided on the thermal insulation door body 140 at a position corresponding to the air-conditioning compartment 110. The front ventilation hole 150 is equipped with a waterproof and dustproof device to prevent external water and dust from entering the thermal insulation cabinet body 100 through the front ventilation hole 150 as much as possible; a sealing member is provided between the thermal insulation door body 140 and the thermal insulation cabinet body 100 to ensure the sealing of the entire cabinet body when the door is closed.

[0075] The direct cooling module 200 is arranged in the air conditioning compartment 110, and is used to adjust the temperature of the energy storage device, including a housing 210 and a compressor 220, a heat exchanger 230, a regenerator 240, an electric control box 250 and a heat dissipation fan 260 located in the housing 210. The front side plate of the housing 210 is provided with a return air port 213, and the rear side plate is provided with an air outlet 214. The compressor 220, the heat exchanger 230 and the regenerator 240 are connected in sequence through pipelines to form a refrigerant circulation loop. The direct cooling module 200 is an integral module, which is convenient for disassembly and maintenance of the whole machine.

[0076] A plurality of battery PACKs 900 are arranged in the first equipment compartment 120 at intervals up and down.

[0077] The battery PCS 1000 is disposed in the second equipment compartment 130 .

[0078] The distribution box 500 is also arranged in the second equipment compartment 130 .

[0079] The internal space of the insulation cabinet 100 is partitioned to reasonably install and arrange the direct cooling module 200 and the energy storage equipment (battery PCK, battery PCS1000, distribution box 500) to make the internal structure of the cabinet compact. The air-conditioning compartment 110 is located at the top. The air-conditioning compartment 110 can be added by increasing the height of the energy storage device without occupying the installation space of the energy storage equipment and without increasing the floor area.

[0080] In some embodiments of the present application, the battery management system BMS and the energy management system EMS are integrated in the distribution box 500. At the same time, the heat preservation cabinet 100 is equipped with a fire protection system, a door access control system, a lighting system, a water leakage detection system, and the like.

[0081] A plurality of battery direct cooling plate parallel branches 700 are connected in parallel between a total input terminal a and a total output terminal b, the total input terminal a is connected to the first channel first port 241 of the heat regenerator 240, and the total output terminal is connected to the second channel first port 242 of the heat regenerator 240; each battery direct cooling plate parallel branch 700 is connected to a battery direct cooling plate 300, and an electronic expansion valve 270 is respectively provided at the inlet and outlet of each battery direct cooling plate 300, and the battery direct cooling plate 300 is provided in a one-to-one correspondence with the battery PACK900.

[0082] Specifically, the battery direct cooling plate 300 is placed in the first equipment compartment 120, and each battery direct cooling plate 300 is located below the corresponding battery PACK900 to perform heat exchange with the battery PACK900. A refrigerant flow channel is formed inside the battery direct cooling plate 300, and the refrigerant in the refrigerant circulation loop flows through the battery direct cooling plate 300 to perform heat exchange with the battery PACK900. By adjusting the opening of the electronic expansion valve 270 on the parallel branch where the battery direct cooling plate 300 is located, the refrigerant flow through the battery direct cooling plate 300 can be adjusted to achieve the appropriate temperature required by the battery PACK900.

[0083] One end of the PCS direct cooling plate branch 800 is also connected to the first channel first port 241 of the heat regenerator 240, and the other end is connected to the second channel first port 242 of the heat regenerator 240; the PCS direct cooling plate branch 800 is connected to the PCS direct cooling plate 400, and electronic expansion valves 270 are respectively provided at the inlet and outlet of the PCS direct cooling plate 400, and the PCS direct cooling plate 400 is arranged corresponding to the battery PCS1000.

[0084] Specifically, the PCS direct cooling plate 400 is placed in the first equipment compartment 120, and the PCS direct cooling plate 400 is located below the battery PCS1000, and performs heat exchange with the battery PCS1000. The PCS direct cooling plate 400 has the same structure as the battery direct cooling plate 300, and a refrigerant flow channel is formed inside. The refrigerant in the refrigerant circulation loop flows through the PCS direct cooling plate 400 and performs heat exchange with the battery PCS1000. By adjusting the opening of the electronic expansion valve 270 on the branch where the PCS direct cooling plate 400 is located, the refrigerant flow through the PCS direct cooling plate 400 can be adjusted to achieve the appropriate temperature required by the battery PCS1000.

[0085] In some embodiments of the present application, a schematic diagram of a direct cooling heat dissipation system of a direct cooling industrial and commercial energy storage device is shown in FIG. Figure 5 As shown, the compressor 220, the heat exchanger 230 and the regenerator 240 are connected in sequence through pipelines to form a refrigerant circulation loop. The regenerator 240 has a first channel and a second channel, wherein the first channel second port 243 is connected to the heat exchanger 230, and the second channel second port 244 is connected to the air intake port of the compressor 220. A plurality of battery direct cooling plate parallel branches 700 are connected between the first channel first port 241 and the second channel first port 242 of the regenerator 240, and the PCS direct cooling plate branch 800 is also connected between the first channel first port 241 and the second channel first port 242 of the regenerator 240.

[0086] Specifically, the first channel first port 241 of the regenerator 240 is divided into two paths, one of which is connected to the total input end a of the multiple battery direct cooling plate parallel branches 700, and the other is connected to one end of the PCS direct cooling plate branch 800; the total output end b of the multiple battery direct cooling plate parallel branches 700 and the other end of the PCS direct cooling plate branch 800 converge and are connected to the second channel first port 242 of the regenerator 240.

[0087] When the direct cooling module 200 is cooling, the refrigerant is compressed into high-temperature and high-pressure gas by the compressor 220, returns the oil through the oil separator 290, and then goes to the heat exchanger 230, condenses and dissipates heat through the heat dissipation fan 260, becomes a medium-temperature and high-pressure liquid refrigerant, enters the first channel of the regenerator 240, and is further supercooled by the regenerator 240 and is divided into two paths, one of which is further divided into multiple paths and enters multiple battery direct cooling plate parallel branches 700. The electronic expansion valve 270 on the right side of each battery direct cooling plate 300 is fully opened, and heat is exchanged through each battery direct cooling plate 300 to cool each battery PACK 900; then it is throttled into a low-temperature and low-pressure gas-liquid two-phase refrigerant through the electronic expansion valve 270 on the left side of the battery direct cooling plate 300, enters the second channel of the regenerator 240, is superheated into a gaseous refrigerant through the regenerator 240, and returns to the compressor 220 through the liquid storage tank 280.

[0088] At the same time, another refrigerant coming out of the first channel of the regenerator 240 enters the PCS direct cooling plate branch 800, and the electronic expansion valve 270 on the right side of the PCS direct cooling plate 400 is fully opened, and heat is exchanged through the PCS direct cooling plate 400 to cool the battery PCS1000; then it is throttled into a low-temperature and low-pressure gas-liquid two-phase refrigerant through the electronic expansion valve 270 on the left side of the PCS direct cooling plate 400, enters the second channel of the regenerator 240, is superheated through the regenerator 240 to become a gaseous refrigerant, and returns to the compressor 220 through the liquid storage tank 280.

[0089] At this point, the refrigeration cycle is completed, achieving simultaneous heat dissipation for each battery PACK900 and battery PCS1000.

[0090] Since the battery PACK900 and the battery PCS1000 have different requirements for the heat dissipation temperature range, the battery direct cooling plate 300 and the PCS direct cooling plate 400 are used as follows Figure 5 The connection method shown in the schematic diagram is connected to the refrigerant circulation loop, which can facilitate the separate control of the battery direct cooling plate 300 and the battery PCS1000 and reduce the control difficulty.

[0091] The refrigerant of the direct cooling module 200 directly enters the battery direct cooling plate 300 and the PCS direct cooling plate 400 to dissipate heat for the battery cells inside the battery PACK900 and the internal components of the battery PCS1000, thereby avoiding energy loss caused by secondary heat exchange and effectively improving the heat dissipation efficiency and response speed. The installation area corresponding to the battery PCS1000 in the direct cooling industrial and commercial energy storage device does not need to be equipped with a ventilation structure, which can avoid safety problems caused by water and dust.

[0092] In some embodiments of the present application, the waterproof and dustproof device includes waterproof shutters and dustproof cotton. The waterproof and dustproof device is specifically installed on the thermal insulation door body 140. The dustproof cotton is located on the front side of the waterproof shutters and covers the front ventilation holes 150. An air inlet grille is installed on the front ventilation holes 150 to improve the reliability of waterproofing and dustproofing.

[0093] In some embodiments of the present application, reference Figure 6 , while combining Figure 3 and Figure 4The air conditioning compartment 110 is located above the equipment compartment, and the air conditioning compartment 110 and the equipment compartment are separated by a horizontally placed partition plate 600. The front side of the partition plate 600 is formed with an L-shaped bending portion 610 that is bent downward. The horizontal portion of the L-shaped bending portion 610 is located on the front side of its vertical portion. The front edge of the horizontal portion of the L-shaped bending portion 610 is formed with a vertical flange 620 that is bent upward. The left front side, the right front side, and the lower front side of the equipment compartment are also formed with flanges that are folded outward relative to the equipment compartment opening. The flange is coplanar with the vertical flange 620 of the L-shaped bending portion 610, and together they form a complete annular flanged door frame 170. The annular flanged door frame 170 is surrounded by a sealing strip, which is used to seal with the thermal insulation door body 140 to ensure the sealing of the equipment compartment, thereby further improving the sealing reliability of the equipment compartment.

[0094] In extreme weather, if water enters through the front ventilation hole 150, the thermal insulation door body 140 and the annular flanged door frame 170 can still be sealed to ensure the closure of the equipment compartment, and can effectively avoid safety hazards such as short circuits caused by water and dust ingress to the battery PACK900, battery PCS1000, distribution box 500, etc. in the equipment compartment.

[0095] For ease of processing, the partition plate 600 is welded from two parts, the rear part is sealed to the back plate and left and right side plates of the insulation cabinet 100, the front part extends to the cabinet opening, and the L-shaped bend 610 is formed on the front edge of the front part.

[0096] In some embodiments of the present application, Figure 6 As shown, the left and right sides of the partition plate 600 are each formed with an upwardly protruding air conditioning support position 630, and the two air conditioning support positions 630 are respectively formed with a guide rail 640 extending forward and backward, and the two guide rails 640 cooperate to form a guide channel, and the direct cooling module 200 is inserted into the air conditioning compartment 110 through the guide channel, and the left and right sides of its bottom surface are supported on the air conditioning support position 630. The guide channel can play a guiding role in the insertion and placement of the direct cooling module 200. The direct cooling module 200 is only supported on the left and right sides of the bottom surface on the air conditioning support position 630, so the contact area with the partition plate 600 is small, reducing friction. At the same time, the air conditioning support position 630 also plays a role in raising the direct cooling module 200. If there is water accumulation on the partition plate 600, the possibility of the direct cooling module 200 being affected by the water accumulation can be reduced.

[0097] In some embodiments of the present application, an upwardly protruding limit baffle 650 is formed on the rear end of the air-conditioning support position 630. When the direct cooling module 200 is inserted into place, its shell 210 abuts against the limit baffle 650, which serves to limit the direct cooling module 200. That is, when the shell 210 of the direct cooling module 200 abuts against the limit baffle 650, it indicates that the direct cooling module 200 is placed in place. At this time, the direct cooling module 200 is fixed on the air-conditioning support position 630.

[0098] In some embodiments of the present application, a push-pull handle 2130 is provided on the front side plate of the housing 210 of the direct cooling module 200, which is located outside the left and right ends of the return air outlet 213. By holding the push-pull handle 2130, the entire direct cooling module 200 can be easily pushed into the air conditioning compartment 110 or pulled out of the air conditioning compartment 110.

[0099] In some embodiments of the present application, inclined portions 641 are formed at the front and rear sections of the guide rail 640 so that both ends of the guide channel are flared to facilitate the direct cooling module 200 to enter and exit the air conditioning compartment 110.

[0100] In some embodiments of the present application, the distribution box 500 is located below the battery PCS 1000 to facilitate circuit routing and refrigerant circulation loop piping.

[0101] In some embodiments of the present application, a plurality of strip support plates 180 extending forward and backward are fixedly provided on the left and right side walls of the first equipment compartment 120 at intervals along the height direction of the insulation cabinet 100, and the plurality of strip support plates 180 on the left and right side walls are symmetrically arranged with each other, and the left and right sides of the battery direct cooling plate 300 are correspondingly fixed on the strip support plates 180 on the left and right sides, and the left and right sides of the PCS direct cooling plate 400 are correspondingly fixed on the strip support plates 180 on the left and right sides.

[0102] Regarding the structure of the direct cooling plate, taking the battery direct cooling plate 300 as an example, Fig.14 As shown, a circuitous refrigerant flow channel is formed inside the battery direct cooling plate 300, and a refrigerant inlet 310 and a refrigerant outlet 320 connected to the starting point and the end point of the refrigerant flow channel are correspondingly formed on the battery direct cooling plate 300. The battery direct cooling plate 300 is connected to the battery direct cooling plate parallel branch 700 with its refrigerant inlet 310 and the refrigerant outlet 320, thereby connecting the internal refrigerant flow channel of the battery direct cooling plate 300 to the battery direct cooling plate parallel branch 700.

[0103] A plurality of screw holes 330 are provided at intervals along the front-to-back direction on the left and right sides of the battery direct cooling plate 300 so as to be connected to the strip support plate 180 accordingly.

[0104] To facilitate processing, the battery direct cooling plate 300 can be a two-half structure with a sealing strip clamped around it to ensure the sealing of the internal refrigerant flow channel.

[0105] The structure of the PCS direct cooling plate 400 is the same as that of the battery direct cooling plate 300, and will not be described in detail here.

[0106] Reference Figures 7 to 13 , while combining Figure 2 and Figure 3The direct cooling module 200 has an outer contour in the shape of a flat rectangular parallelepiped and is placed in the air-conditioning compartment 110 in a horizontal position, that is, it has a large size in the left-right direction and a small size in the up-down direction. The compressor 220, the heat exchanger 230, the regenerator 240, the electric control box 250 and the cooling fan 260 are all arranged on the bottom plate of its shell 210. The front side plate of the shell 210 is provided with a return air port 213, and the rear side plate is provided with an air outlet 214, so that air return is achieved at the front and air outlet is achieved at the rear.

[0107] The return air inlet 213, the air outlet 214, and the heat exchanger 230 all extend left and right. The electric control box 250 and the compressor 220 are respectively located at the left and right ends of the return air inlet 213. The heat exchanger 230 and the heat dissipation fan 260 are close to the air outlet 214. The heat dissipation fan 260 is located between the heat exchanger 230 and the air outlet 214 to discharge the heat of the heat exchanger 230 through the air outlet 214 during cooling.

[0108] like Figures 7 to 13 As shown, the heat regenerator 240 is located on the side where the compressor 220 is located to facilitate pipeline connection; there is a gap 2100 between the electric control box 250 and the compressor 220, and the gap 2100 is directly opposite to the heat exchanger 230, that is, there is a large distance between the electric control box 250 and the compressor 220, and a gap design is left to ensure smooth return air flow and improve the return air capacity, and the electric control box 250 and the compressor 220 are respectively located at the two ends of the return air outlet 213, which is beneficial to ensure the stability of the center of gravity of the whole machine.

[0109] In some embodiments of the present application, two heat dissipation fans 260 are provided on the left and right to increase the air volume and thus improve the heat dissipation effect.

[0110] Two cooling fans 260 are installed on the same fan bracket 2110. The fan bracket 2110 includes a main mounting plate 2111 extending left and right and two left and right U-shaped brackets 2112 arranged on the rear side of the main mounting plate 2111. The periphery of the main mounting plate 2111 is fixedly connected to the corresponding side plate of the shell 210. The U-shaped bracket 2112 is a frame structure, including two left and right long strip side plates and a long strip bottom plate connecting the two long strip side plates. The open end of the U-shaped bracket 2112 is fixedly connected to the main mounting plate 2111. The two U-shaped brackets 2112 are tilted. The two long strip side plates of each U-shaped bracket 2112 are not at the same height position, one is on the top and the other is on the bottom. The long strip bottom plate is tilted to connect the two long strip side plates, so that the entire U-shaped bracket 2112 is installed in a tilted manner. Fig.13 shown.

[0111] The two U-shaped brackets 2112 are inclined in the same direction, which can reduce the space occupied in the left and right directions and make the structure compact. The air suction end of the heat dissipation fan 260 is fixedly connected to the main mounting plate 2111, and the air outlet end is fixedly connected to the bottom plate of the U-shaped bracket 2112. The main mounting plate 2111 is provided with a through portion corresponding to the air suction ends of the two heat dissipation fans 260.

[0112] The two cooling fans 260 are installed on the same fan bracket 2110 and can be used as an integral fan module. Before installation, the entire fan module can be pre-assembled as one, and then installed as a whole in the housing 210, which improves assembly efficiency and reduces assembly difficulty.

[0113] A mounting angle code 2120 is provided on the bottom plate of the shell 210 of the direct cooling module 200 so that the direct cooling module 200 can be fixed on the partition plate 600 as a whole by screw fastening.

[0114] In some embodiments of the present application, the electric control box 250 is arranged near the left side plate of the housing 210, and the left side plate of the housing 210 is composed of a detachable first side plate 211 and a second side plate 212. The first side plate 211 is directly opposite to the cover of the electric control box 250, and the cover of the electric control box 250 is detachable; the second side plate 212 is directly opposite to the area where the heat exchanger 230 and the heat dissipation fan 260 are located. Then the first side plate 211 can serve as a maintenance plate of the electric control box 250, which is a detachable structure. When maintenance or repair is required, the first side plate 211 can be removed, and then the cover of the electric control box 250 can be removed, and the relevant operations can be performed on the internal electrical components of the electric control box 250.

[0115] The above-mentioned detachable structure can be a screw connection structure or a snap connection structure, etc.

[0116] In some embodiments of the present application, the electric control box 250 is provided with a heat sink 252 located on the return air flow path, which can take away the heat generated by the electric control box 250 during operation and ensure the working reliability of the electric control box 250.

[0117] In some embodiments of the present application, a direct cooling industrial and commercial energy storage device is proposed, including an insulation cabinet 100, an insulation door 140, a direct cooling module 200, multiple battery PACKs 900, a battery PCS 1000, a distribution box 500, multiple battery direct cooling plate parallel branches 700, PCS direct cooling plate branches 800, a battery direct cooling plate 300 and a PCS direct cooling plate 400.

[0118] The heat preservation cabinet 100 is generally a rectangular cabinet, the front side of which is open to form a cabinet opening, and the internal space of the heat preservation cabinet 100 is divided into an air conditioning compartment 110 and an equipment compartment which are isolated from each other, that is, the air conditioning compartment 110 and the equipment compartment are independent of each other and arranged along the height direction of the cabinet, with the air conditioning compartment 110 on the top and the equipment compartment on the bottom. The equipment compartment is divided into a first equipment compartment 120 on the top and a second equipment compartment 130 on the bottom.

[0119] like Figure 2 As shown, the back plate of the heat preservation cabinet 100 is divided into a detachable air conditioning compartment 110 back plate, a first detachable equipment compartment back plate 1100 and a second detachable equipment compartment back plate 1110 which are arranged corresponding to the air conditioning compartment 110, the first equipment compartment 120 and the second equipment compartment 130, and the detachable air conditioning compartment 110 back plate is provided with a rear vent 160 which is connected to the air conditioning compartment 110. By removing the detachable air conditioning compartment 110 back plate, the first detachable equipment compartment back plate 1100 and the second detachable equipment compartment back plate 1110 from the rear side of the cabinet, the air conditioning compartment 110 and the structural components, electrical components and the like in the equipment compartment can be repaired and maintained.

[0120] The above-mentioned detachable structure can be a screw connection structure or a snap connection structure, etc.

[0121] The thermal insulation door body 140 cooperates with the cabinet opening of the thermal insulation cabinet body 100 to open and close the thermal insulation cabinet body 100. A front ventilation hole 150 is provided on the thermal insulation door body 140 at a position corresponding to the air-conditioning compartment 110. The front ventilation hole 150 is equipped with a waterproof and dustproof device to prevent external water and dust from entering the thermal insulation cabinet body 100 through the front ventilation hole 150 as much as possible; a sealing member is provided between the thermal insulation door body 140 and the thermal insulation cabinet body 100 to ensure the sealing of the entire cabinet body when the door is closed.

[0122] The direct cooling module 200 is arranged in the air conditioning compartment 110, and is used to adjust the temperature of the energy storage device, including a housing 210 and a compressor 220, a heat exchanger 230, a regenerator 240, an electric control box 250 and a heat dissipation fan 260 located in the housing 210. The front side plate of the housing 210 is provided with a return air port 213, and the rear side plate is provided with an air outlet 214. The compressor 220, the heat exchanger 230 and the regenerator 240 are connected in sequence through pipelines to form a refrigerant circulation loop. The direct cooling module 200 is an integral module, which is convenient for disassembly and maintenance of the whole machine.

[0123] A plurality of battery PACKs 900 are arranged in the first equipment compartment 120 at intervals up and down.

[0124] The battery PCS 1000 is disposed in the second equipment compartment 130 .

[0125] The distribution box 500 is also arranged in the second equipment compartment 130 .

[0126] The internal space of the insulation cabinet 100 is partitioned to reasonably install and arrange the direct cooling module 200 and the energy storage equipment (battery PCK, battery PCS1000, distribution box 500) to make the internal structure of the cabinet compact. The air-conditioning compartment 110 is located at the top. The air-conditioning compartment 110 can be added by increasing the height of the energy storage device without occupying the installation space of the energy storage equipment and without increasing the floor area.

[0127] In some embodiments of the present application, the battery management system BMS and the energy management system EMS are integrated in the distribution box 500. At the same time, the heat preservation cabinet 100 is equipped with a fire protection system, a door access control system, a lighting system, a water leakage detection system, and the like.

[0128] A plurality of battery direct cooling plate parallel branches 700 are connected in parallel between a total input terminal a and a total output terminal b, the total input terminal a is connected to the first channel first port 241 of the heat regenerator 240, and the total output terminal is connected to the second channel first port 242 of the heat regenerator 240; each battery direct cooling plate parallel branch 700 is connected to a battery direct cooling plate 300, and an electronic expansion valve 270 is respectively provided at the inlet and outlet of each battery direct cooling plate 300, and the battery direct cooling plate 300 is provided in a one-to-one correspondence with the battery PACK900.

[0129] Specifically, the battery direct cooling plate 300 is placed in the first equipment compartment 120, and each battery direct cooling plate 300 is located below the corresponding battery PACK900 to perform heat exchange with the battery PACK900. A refrigerant flow channel is formed inside the battery direct cooling plate 300, and the refrigerant in the refrigerant circulation loop flows through the battery direct cooling plate 300 to perform heat exchange with the battery PACK900. By adjusting the opening of the electronic expansion valve 270 on the parallel branch where the battery direct cooling plate 300 is located, the refrigerant flow through the battery direct cooling plate 300 can be adjusted to achieve the appropriate temperature required by the battery PACK900.

[0130] One end of the PCS direct cooling plate branch 800 is also connected to the first channel first port 241 of the heat regenerator 240, and the other end is connected to the second channel first port 242 of the heat regenerator 240; the PCS direct cooling plate branch 800 is connected to the PCS direct cooling plate 400, and electronic expansion valves 270 are respectively provided at the inlet and outlet of the PCS direct cooling plate 400, and the PCS direct cooling plate 400 is arranged corresponding to the battery PCS1000.

[0131] In some embodiments of the present application, the portion of the pipeline in the refrigerant circulation loop located on the outside of the direct cooling module 200 shell 210 can be set on the rear side of the cabinet, that is, close to the back plate, and connected to the pipeline inside the shell 210 by setting a joint on the shell 210. If the battery PACK900 or battery PCS1000 needs to be replaced or repaired, the refrigerant pipeline joint on the rear side can be removed to remove the battery PACK900 or battery PCS1000 from the front cabinet port.

[0132] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0133] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A direct-cooling industrial and commercial energy storage device, characterized in that: include: The heat preservation cabinet has a cabinet opening on the front side, and its internal space is divided into an air conditioning compartment and an equipment compartment isolated from each other, and the equipment compartment is divided into a first equipment compartment and a second equipment compartment; a rear vent hole connected to the air conditioning compartment is provided on the back plate of the heat preservation cabinet; A heat preservation door body, which cooperates with the cabinet opening to open and close the heat preservation cabinet body, a front vent hole is provided on the heat preservation door body at a position corresponding to the air conditioning compartment, and the front vent hole is equipped with a waterproof and dustproof device; a sealing member is provided between the heat preservation door body and the heat preservation cabinet body; A direct cooling module is arranged in the air conditioning compartment, comprising a shell and a compressor, a heat exchanger, a regenerator, an electric control box and a heat dissipation fan located in the shell, a front side plate of the shell is provided with an air return port, and a rear side plate is provided with an air outlet, and the compressor, heat exchanger and regenerator are connected in sequence through pipelines to form a refrigerant circulation loop; A plurality of battery PACKs are arranged in the first equipment compartment at intervals in upper and lower parts; A battery PCS, which is arranged in the second equipment compartment; A distribution box, which is arranged in the second equipment compartment; A plurality of parallel branches of battery direct cooling plates are connected in parallel between a total input end and a total output end, the total input end is connected to the first port of the first channel of the regenerator, and the total output end is connected to the first port of the second channel of the regenerator; each of the parallel branches of the battery direct cooling plates is connected to a battery direct cooling plate, and an electronic expansion valve is respectively provided at the inlet and outlet of each of the battery direct cooling plates, and the battery direct cooling plates are provided in a one-to-one correspondence with the battery PACK; A PCS direct cooling plate branch has one end connected to the first port of the first channel of the heat regenerator, and the other end connected to the first port of the second channel of the heat regenerator; the PCS direct cooling plate branch is connected to a PCS direct cooling plate, and electronic expansion valves are respectively provided at the inlet and outlet of the PCS direct cooling plate, and the PCS direct cooling plate is arranged corresponding to the battery PCS.

2. The direct-cooling industrial and commercial energy storage device according to claim 1, characterized in that: The waterproof and dustproof device comprises a waterproof shutter and dustproof cotton, wherein the dustproof cotton is located at the front side of the waterproof shutter and covers the front ventilation hole, and an air inlet grille is installed on the front ventilation hole.

3. The direct-cooling industrial and commercial energy storage device according to claim 1, characterized in that: The air-conditioning compartment is located above the equipment compartment, and the air-conditioning compartment and the equipment compartment are separated by a horizontally placed partition plate, the front side edge of the partition plate is formed with an L-shaped bending portion bent downward, the horizontal portion of the L-shaped bending portion is located on the front side of its vertical portion, the front edge of the horizontal portion of the L-shaped bending portion is formed with an upward-bending vertical flange, the vertical flange and the left front side, right front side and lower front side of the equipment compartment form a coplanar annular flange-shaped door frame, the annular flange-shaped door frame is surrounded by a sealing strip, and the sealing strip is used to seal with the thermal insulation door body to ensure the sealing of the equipment compartment.

4. The direct-cooling industrial and commercial energy storage device according to claim 3, characterized in that: An upwardly protruding air-conditioning support position is formed on the left and right sides of the partition plate, and a guide rail extending forward and backward is formed on the two air-conditioning support positions respectively. The two guide rails cooperate to form a guide channel. The direct cooling module is inserted into the air-conditioning compartment through the guide channel, and is supported on the air-conditioning support positions by the left and right sides of its bottom surface.

5. The direct-cooling industrial and commercial energy storage device according to claim 4, characterized in that: A limit baffle protruding upward is formed on the rear end of the air conditioning support position. When the direct cooling module is inserted into place, its shell rests against the limit baffle. The front side panel of the shell of the direct cooling module is provided with push-pull handles located on the outside of the left and right ends of the return air outlet.

6. The direct-cooling industrial and commercial energy storage device according to claim 4, characterized in that: Inclined portions are formed at the front and rear sections of the guide rail so that both ends of the guide channel are expanded.

7. The direct-cooling industrial and commercial energy storage device according to claim 1, characterized in that: The power distribution box is located below the battery PCS.

8. The direct-cooling industrial and commercial energy storage device according to claim 1, characterized in that: The left and right side walls of the first equipment compartment are fixed with a plurality of strip support plates extending forward and backward at intervals along the height direction of the insulation cabinet, and the plurality of strip support plates on the left and right side walls are symmetrically arranged with each other, and the left and right sides of the battery direct cooling plate and the left and right sides of the PCS direct cooling plate are correspondingly fixed on the strip support plates.

9. The direct-cooling industrial and commercial energy storage device according to claim 1, characterized in that: The air outlet extends left and right, and two heat dissipation fans are arranged on the left and right, and are arranged between the heat exchanger and the air outlet; the two heat dissipation fans are installed on the same fan bracket, and the fan bracket includes a main mounting plate extending left and right and two left and right U-shaped brackets arranged on the rear side of the main mounting plate, the open end of the U-shaped bracket is fixedly connected to the main mounting plate, and the two U-shaped brackets are inclined, and the inclination directions are consistent; the suction end of the heat dissipation fan is fixedly connected to the main mounting plate, and the air outlet end is fixedly connected to the bottom plate of the U-shaped bracket, and the main mounting plate is provided with a through portion corresponding to the suction end of the two heat dissipation fans.

10. A direct-cooling industrial and commercial energy storage device, characterized in that: include: The thermal insulation cabinet has a cabinet opening on its front side, the internal space of the thermal insulation cabinet is divided into an air conditioning compartment and an equipment compartment isolated from each other, and the equipment compartment is divided into a first equipment compartment and a second equipment compartment; the back panel of the thermal insulation cabinet is divided into a detachable air conditioning compartment back panel, a first detachable equipment compartment back panel and a second detachable equipment compartment back panel corresponding to the air conditioning compartment, the first equipment compartment and the second equipment compartment, and the detachable air conditioning compartment back panel is provided with a rear ventilation hole connected to the air conditioning compartment; A heat preservation door body cooperates with the cabinet opening of the heat preservation cabinet body to open and close the heat preservation cabinet body, a front vent hole is provided on the heat preservation door body at a position corresponding to the air conditioning compartment, and the front vent hole is equipped with a waterproof and dustproof device; a sealing member is provided between the heat preservation door body and the heat preservation cabinet body; A direct cooling module is arranged in the air conditioning compartment; the direct cooling module comprises a shell and a compressor, a heat exchanger, a regenerator, an electric control box and a heat dissipation fan located in the shell, a front side plate of the shell is provided with an air return port, and a rear side plate is provided with an air outlet, and the compressor, heat exchanger and regenerator are connected in sequence through pipelines to form a refrigerant circulation loop; A plurality of battery PACKs are arranged in the first equipment compartment at intervals in upper and lower parts; A battery PCS, which is arranged in the second equipment compartment; A distribution box, which is arranged in the second equipment compartment; A plurality of parallel branches of battery direct cooling plates are connected in parallel between a total input end and a total output end, the total input end is connected to the first port of the first channel of the regenerator, the total output end is connected to the first port of the second channel of the regenerator, each of the parallel branches of the battery direct cooling plates is connected to a battery direct cooling plate, and an electronic expansion valve is respectively provided at the inlet and outlet of each of the battery direct cooling plates, and the battery direct cooling plates are provided in one-to-one correspondence with the battery PACK; A PCS direct cooling plate branch has one end connected to the first port of the first channel of the heat regenerator and the other end connected to the first port of the second channel of the heat regenerator. The PCS direct cooling plate branch is connected to a PCS direct cooling plate. Electronic expansion valves are respectively provided at the inlet and outlet of the PCS direct cooling plate. The PCS direct cooling plate is provided corresponding to the battery PCS.

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