Water-cooling air conditioner for industrial and commercial energy storage cabinet

Abstract

The invention discloses a water-cooling air conditioner for an industrial and commercial energy storage cabinet, and relates to the technical field of cooling of energy storage equipment. A water-cooled air conditioner for an industrial and commercial energy storage cabinet comprises a water-cooled cabinet body, a cold pump mechanism, an air cooling mechanism and a liquid cooling mechanism are arranged in the water-cooled cabinet body, the cold pump mechanism is used for conducting heat exchange refrigeration on the air cooling mechanism and the liquid cooling mechanism at the same time, and the air cooling mechanism is used for blowing cold air into the energy storage cabinet circularly to keep the interior of the energy storage cabinet in a low-temperature state. The cooling mechanism is used for directly cooling electrical components in the energy storage cabinet in a liquid cooling manner, so that the cooling pump mechanism, the air cooling mechanism and the liquid cooling mechanism are matched with one another, and therefore, cooling and heat dissipation can be effectively and sufficiently performed on the battery cluster group in the energy storage cabinet body; and the cooling and heat dissipation efficiency in the industrial and commercial energy storage cabinet can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of cooling energy storage equipment, and in particular to a water-cooled air conditioner for an industrial and commercial energy storage cabinet. Background Art

[0002] With the rapid development of energy storage technology, industrial and commercial energy storage cabinets are increasingly used in power systems. However, the electronic components stored in the energy storage cabinets will generate a lot of heat during operation. If the energy storage cabinets are not effectively cooled in time, the long-term accumulation of heat will directly lead to equipment performance degradation or even damage. Conventional industrial and commercial energy storage cabinets generally have several layers of racks inside the cabinet, and the electronic components such as battery clusters are arranged in sequence on the racks.

[0003] At present, in the prior art, industrial and commercial energy storage cabinets generally use air cooling to achieve internal cooling of the energy storage cabinet. Specifically, a number of sets of duct fans are provided in the industrial and commercial energy storage cabinet, through which the high-temperature air in the energy storage cabinet is fully discharged, and a negative pressure space is formed in the energy storage cabinet. At this time, the external cold air is introduced into the energy storage cabinet through the air duct to achieve cooling of the electronic components.

[0004] The advantages of air cooling are simple structure and low cost, but the heat dissipation efficiency is not high. In some energy storage cabinets with low internal density and large space, air cooling can still achieve a certain heat dissipation effect, but in some high-density, high-power energy storage cabinets, the heat dissipation effect is not good, and even heat accumulation may occur inside. Therefore, in order to enable energy storage cabinets with high-density electronic components to meet the heat dissipation requirements, further improvements to the cooling structure inside the energy storage cabinet are of great value and significance. Summary of the invention

[0005] In order to improve the cooling structure inside the industrial and commercial energy storage cabinet, improve the cooling and heat dissipation efficiency inside the industrial and commercial energy storage cabinet, and meet the heat dissipation requirements of some energy storage cabinets with high-density electronic components, the present application provides a water-cooled air conditioner for the industrial and commercial energy storage cabinet.

[0006] The water-cooled air conditioner for industrial and commercial energy storage cabinets provided in this application adopts the following technical solution: A water-cooled air conditioner for an industrial and commercial energy storage cabinet, comprising: The water-cooling cabinet is arranged on one side of the energy storage cabinet and is provided with a cold air outlet connected to the top of the energy storage cabinet, a return air outlet connected to the bottom of the energy storage cabinet, and a fresh air outlet and an exhaust air outlet connected to the external environment; A cold pump mechanism is arranged inside the water-cooling cabinet, and includes a compressor unit, a first evaporator, a second evaporator and a condensing and heat dissipating component connected to each other by pipelines; An air cooling mechanism, the air cooling mechanism comprising a wind wheel assembly, the wind wheel assembly being used to blow the air entering the water cooling cabinet toward the first evaporator, and to send the air into the energy storage cabinet from the cold air port; The liquid cooling mechanism is used to cooperate with the second evaporator to perform liquid cooling on the battery cluster group in the energy storage cabinet.

[0007] By adopting the above technical solution, through the mutual cooperation between the cold pump mechanism, the air cooling mechanism and the liquid cooling mechanism, the battery cluster group inside the energy storage cabinet can be effectively and fully cooled and dissipated, which is beneficial to improving the cooling and heat dissipation efficiency in the industrial and commercial energy storage cabinet.

[0008] Optionally, a first partition and a second partition are provided inside the water-cooling cabinet, wherein the first partition divides the inside of the water-cooling cabinet into a first cavity, a second cavity and a third cavity, wherein the first partition is located between the third cavity and the first cavity and the second cavity, and the second partition is located between the first cavity and the second cavity; A first air valve connecting or separating the second cavity and the third cavity is arranged on the first partition plate, the cold air inlet is arranged in the first cavity, the return air inlet is arranged in the second cavity, the fresh air inlet is arranged in the first cavity, and the exhaust air outlet is arranged in the third cavity. The first evaporator and the wind wheel assembly are both arranged in the first cavity, and the compressor unit and the condensation and heat dissipation assembly are arranged in the third cavity.

[0009] By adopting the above technical solution, when the water-cooled air conditioner is working normally, the first air valve is opened, and the first cavity is separated from the second cavity, and the second cavity is connected to the third cavity. The hot air inside the energy storage cabinet enters the second cavity of the water-cooled cabinet from the return air port at the bottom along with the air flow, and then flows through the first air valve into the third cavity and is discharged from the exhaust port. Due to the influence of the air pressure inside the water-cooled cabinet, the fresh air in the external environment can enter the first cavity through the fresh air port. Driven by the wind wheel assembly, the fresh air first flows through the first evaporator for cooling, and then enters the energy storage cabinet from the cold air port, thereby achieving air cooling inside the energy storage cabinet.

[0010] Optionally, a second air valve connecting or separating the first cavity and the second cavity is provided on the second partition plate, and a third air valve is provided at the fresh air outlet.

[0011] By adopting the above technical solution, when the humidity in the energy storage cabinet is too high, only the second air valve can be opened, and the first air valve and the third air valve can be closed, so that the first cavity and the second cavity are connected, and the second cavity is separated from the third cavity. At this time, the internal air can only circulate inside the energy storage cabinet and the water cooling cabinet. After the internal air flows through the first evaporator many times, the moisture in the air is fully condensed on the surface of the first evaporator, thereby achieving a condensation and dehumidification effect.

[0012] Optionally, the wind wheel assembly includes a first wind wheel and a second wind wheel, the first wind wheel and the second wind wheel are both arranged on the side of the first evaporator away from the cold air outlet, the first wind wheel and the second wind wheel rotate in opposite directions, and the air flow direction between the first wind wheel and the second wind wheel is toward the first evaporator.

[0013] By adopting the above technical solution, the counter-rotating first wind wheel and the second wind wheel can generate eddy currents in the first cavity when working, so as to fully drive the air in the first cavity to flow into the first evaporator, and then through the heat absorption and cooling of the first evaporator, the air flowing into the first cavity can be fully converted into cold air and transported to the energy storage cabinet from the cold air port, which is not only beneficial to improving the air cooling efficiency inside the first cavity, but also beneficial to increasing the exhaust volume of the cold air port, thereby improving the heat dissipation efficiency inside the energy storage cabinet.

[0014] Optionally, driving motors for driving the first wind wheel and the second wind wheel respectively are both arranged in the third cavity.

[0015] By adopting the above technical solution, the driving motor can be effectively prevented from affecting the first evaporator during operation, which is beneficial for the first evaporator to stably cool and dehumidify the air flowing through it, ensuring that the air cooling mechanism can stably deliver cold air into the energy storage cabinet.

[0016] Optionally, the liquid cooling mechanism includes a cooling water tank, a water pump and several groups of liquid cooling pads which are interconnected by pipes, the cooling water tank and the water pump are both arranged in the second cavity, the second evaporator is arranged in the cooling water tank, and several groups of liquid cooling pads are respectively arranged on placement racks in the energy storage cabinet and fit into each other correspondingly with the bottom of the battery cluster group.

[0017] By adopting the above technical solution, when the liquid cooling mechanism works normally, the water pump will first pump the coolant in the cooling water tank to the liquid cooling pad located in the energy storage cabinet. After the coolant has fully exchanged heat with the battery cluster group in the liquid cooling pad, it will flow back to the cooling water tank along the pipeline. Finally, the coolant in the cooling water tank will be cooled and circulated through the second evaporator, thereby achieving liquid cooling of the bottom of the battery cluster group.

[0018] Optionally, a cold liquid cavity is provided inside the liquid cooling pad, and a liquid inlet and a liquid outlet connected to the cold liquid cavity are provided. The water pump is connected to the liquid cooling pad via a cold water pipe, and the cold water pipe is provided with a plurality of groups of cold water branches connected to the liquid inlets of the plurality of groups of liquid cooling pads. The liquid cooling pad is connected to the cooling water tank via a return water pipe, and the return water pipe is provided with a plurality of groups of return water branches connected to the liquid outlets of the plurality of groups of liquid cooling pads.

[0019] Optionally, the liquid cooling mechanism also includes a valve assembly, which includes a pressure sensor, a cold water valve and a return water valve. The pressure sensor is arranged on the liquid cooling pad, and the cold water valve and the return water valve are respectively arranged on the cold water branch pipe and the return water branch pipe. The pressure sensor is electrically connected to the cold water valve and the return water valve respectively.

[0020] By adopting the above technical solution, when the battery cluster group is placed on the liquid cooling pad, the pressure sensor is subjected to pressure and can control the cold water valve and the return water valve to open at the same time, at which time the coolant can flow into the cold liquid cavity of the corresponding layer of the liquid cooling pad, and liquid cool the bottom of the battery cluster group located above. On the contrary, when there is no battery cluster group placed on the liquid cooling pad, the pressure sensor is not subjected to pressure, and the cold water valve and the return water valve are both in a closed state. At this time, the coolant cannot flow through the liquid cooling pad of this layer, which can effectively prevent the liquid cooling pad from still circulating the coolant when there is no battery cluster group placed, which is beneficial to improving the heat exchange rate of the liquid cooling pad, ensuring that the second evaporator can have sufficient heat for heat absorption and evaporation, and thus helping to reduce the energy consumption of the compressor unit.

[0021] Optionally, the liquid cooling mechanism also includes a secondary air cooling component, the secondary air cooling module includes a water flow sensor and a fan, the fan is arranged on the bottom side of the liquid cooling pad, the air outlet of the fan is facing away from the liquid cooling pad, the water flow sensor is arranged on the return branch pipe, and is located on the side of the return valve close to the liquid cooling pad, the water flow sensor is connected to the fan electrical signal, and is used to control the fan to open or close according to the water flow conditions in the return branch pipe of this layer.

[0022] By adopting the above technical solution, since the water flow sensor can control the opening and closing of the ducting fan through the water flow conditions in the return branch pipe, when a battery cluster group is placed on this layer, the cold water valve and the return water valve will be opened, and the liquid cooling pad will also start to cool the battery cluster group. At this time, the coolant flowing in the return branch pipe will trigger the water flow sensor and turn on the ducting fan. The ducting fan can blow the cold air around the bottom of the liquid cooling pad to the next layer of battery cluster group, which is not only conducive to promoting the air flow in the energy storage cabinet and accelerating the air circulation between the energy storage cabinet and the water cooling cabinet, but also can use the low temperature of the upper layer of liquid cooling pad to cool the top of the next layer of battery cluster group, which is conducive to improving the heat dissipation efficiency of the battery cluster group.

[0023] Optionally, the return air outlet is provided with a dustproof screen.

[0024] By adopting the above technical solution, dust and impurities inside the energy storage cabinet can be effectively prevented from entering the water-cooled cabinet through the return air port along with the air flow, which is conducive to ensuring that various mechanisms inside the water-cooled cabinet can work normally.

[0025] In summary, the technical solution of this application has at least one of the following beneficial effects: 1. Through the cooperation between the cold pump mechanism, the air cooling mechanism and the liquid cooling mechanism, the battery cluster group inside the energy storage cabinet can be effectively and fully cooled and dissipated, which is beneficial to improving the heat dissipation efficiency inside the energy storage cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a water-cooled air conditioner for an industrial and commercial energy storage cabinet in an embodiment of the present application.

[0027] Figure 2 It is a structural schematic diagram of a water-cooled cabinet body of a water-cooled air conditioner for an industrial and commercial energy storage cabinet in an embodiment of the present application, in which part of the side panels are hidden.

[0028] Figure 3 It is a cross-sectional view of a water-cooled cabinet body of a water-cooled air conditioner for an industrial and commercial energy storage cabinet in an embodiment of the present application.

[0029] Figure 4 It is a front view of an energy storage cabinet body of an industrial and commercial energy storage cabinet with a water-cooled air conditioner in an embodiment of the present application.

[0030] Figure 5 It is a schematic diagram of the structure explosion of a placement rack and a battery cluster group in an energy storage cabinet of an industrial and commercial energy storage cabinet using a water-cooled air conditioner in an embodiment of the present application.

[0031] Figure 6 It is a cross-sectional view of a liquid cooling pad of a water-cooled air conditioner for an industrial and commercial energy storage cabinet in an embodiment of the present application.

[0032] Description of reference numerals: 1. Energy storage cabinet; 11. Storage rack; 12. Battery cluster; 2. Water cooling cabinet; 21. Cold air outlet; 22. Return air outlet; 221. Dust screen; 23. Fresh air outlet; 24. Exhaust outlet; 25. First partition; 26. Second partition; 27. First cavity; 28. Second cavity; 29. ​​Third cavity; 3. Cold pump mechanism; 31. Compressor unit; 32. First evaporator; 33. Second evaporator; 34. Condensation and heat dissipation assembly; 341. Condenser; 342. Radiator; 4. Air cooling mechanism; 41. Air valve assembly; 411. First air valve; 412. Second air valve; 413. Third air valve; 42. Wind wheel assembly; 421. First wind wheel; 422. Second wind wheel; 5. Liquid cooling mechanism; 51. Cooling water tank; 52. Water pump; 53. Liquid cooling pad; 531. Cold liquid cavity; 532. Liquid inlet; 533. Liquid outlet; 54. Cold water pipe; 541. Cold water branch pipe; 55. Return water pipe; 551. Return water branch pipe; 56. Valve assembly; 561. Pressure sensor; 562. Cold water valve; 563. Return water valve; 57. Secondary air cooling assembly; 571. Water flow sensor; 572. Fan. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-6 This application is described in further detail.

[0034] Reference Figure 1 An industrial and commercial energy storage cabinet is mainly used for storing and managing electricity, and specifically comprises an energy storage cabinet body 1, wherein a plurality of layers of placement racks 11 are arranged inside the energy storage cabinet body 1, and a battery cluster group 12 is placed on each layer of the placement rack 11.

[0035] The present application embodiment discloses a water-cooled air conditioner for an industrial and commercial energy storage cabinet. Figure 1 , Figure 2 and Figure 3 A water-cooled air conditioner for an industrial and commercial energy storage cabinet is applicable to the above-mentioned energy storage cabinet, comprising a water-cooled cabinet 2 arranged on one side of an energy storage cabinet 1, wherein a cold pump mechanism 3, an air cooling mechanism 4 and a liquid cooling mechanism 5 are arranged inside the water-cooled cabinet 2, wherein the cold pump mechanism 3 is used to simultaneously perform heat exchange refrigeration on the air cooling mechanism 4 and the liquid cooling mechanism 5, the air cooling mechanism 4 is used to circulate and blow cold air into the internal space of the energy storage cabinet 1 to keep the interior of the energy storage cabinet 1 in a low temperature state, thereby achieving overall cooling of the internal space of the energy storage cabinet, and the liquid cooling mechanism 5 is used to directly perform liquid cooling on 12 battery clusters inside the energy storage cabinet 1, and then through the mutual cooperation between the air cooling mechanism 4 and the liquid cooling mechanism 5, the battery clusters 12 inside the energy storage cabinet 1 can be effectively and fully cooled and dissipated, which is beneficial to improving the cooling and heat dissipation efficiency in the industrial and commercial energy storage cabinet.

[0036] Reference Figure 2 and Figure 3 The water-cooling cabinet 2 is provided with a cold air inlet 21 connected to the top of the energy storage cabinet 1, a return air inlet 22 connected to the bottom of the energy storage cabinet 1, and a fresh air inlet 23 and an exhaust air inlet 24 connected to the external environment, wherein the water-cooling cabinet 2 realizes gas circulation inside the water-cooling cabinet 2 and the energy storage cabinet 1 through the cold air inlet 21 and the return air inlet 22, and realizes the exhaust and ventilation of the air inside the water-cooling cabinet 2 through the fresh air inlet 23 and the exhaust air inlet 24. Furthermore, in order to reduce the dust or impurities inside the energy storage cabinet 1 from entering the water-cooling cabinet 2, a dustproof screen 221 is also provided at the return air inlet 22. The interior of the water-cooling cabinet 2 is also provided with a first partition 25 and a second partition 26, which further divide the interior of the water-cooling cabinet 2 into a first cavity 27, a second cavity 28 and a third cavity 29, wherein the first partition 25 is located between the third cavity 29 and the first cavity 27 and the second cavity 28, and the second partition 26 is located between the first cavity 27 and the second cavity 28. Specifically, the first cavity 27 is located directly above the second cavity 28, the cold air outlet 21 is provided on the top wall of the first cavity 27, the return air outlet 22 is provided at the bottom end of the side wall of the second cavity 28, the fresh air outlet 23 is provided in the first cavity 27, and the exhaust air outlet 24 is provided at the top end of the side wall of the third cavity 29.

[0037] Reference Figure 2 and Figure 3 The cold pump mechanism 3 includes a compressor unit 31, a first evaporator 32, a second evaporator 33 and a condensation heat dissipation component 34 which are interconnected by pipelines, wherein the pipeline for connecting the cold pump mechanism 3 is filled with refrigerant, the compressor unit 31 and the condensation heat dissipation component 34 are both arranged in the third cavity 29 of the water-cooled cabinet 2, the first evaporator 32 is arranged in the first cavity 27 of the water-cooled cabinet 2, and the second evaporator 33 is arranged in the second cavity 28 of the water-cooled cabinet 2. The condensation heat dissipation component 34 includes a condenser 341 and a radiator 342, wherein the radiator 342 is used to cool and dissipate the condenser 341, and any device that can fully cool and dissipate the condenser 341 can be selected. In this embodiment, the radiator 342 selects a conventional ducting fan 572, and in other embodiments, the radiator 342 can select a conventional cooling water tower, and the cooling and heat dissipation of the condenser 341 is achieved through the circulating cooling water of the cooling water tower.

[0038] Specifically, when the cold pump mechanism 3 works normally, the compressor unit 31 sends the generated high-temperature and high-pressure refrigerant gas into the condensation and heat dissipation component 34 for heat release, and then enters the first evaporator 32 and the second evaporator 33 respectively. The refrigerant fully absorbs the temperature of the environment near the first evaporator 32 and the second evaporator 33, and is heated again to become gas and enter the compressor unit 31 for compression. This cycle is repeated, so that the first evaporator 32 and the second evaporator 33 can have a certain refrigeration effect. In other embodiments, the cold pump mechanism 3 can select an existing cold pump device, but it still needs to have two groups of evaporators for refrigeration as the first evaporator 32 and the second evaporator 33 in the embodiment of the present application.

[0039] Reference Figure 1 , Figure 2 and Figure 3 The air cooling mechanism 4 includes an air valve assembly 41 and an air wheel assembly 42, wherein the air valve assembly 41 is arranged at the intersection of different cavities of the water-cooling cabinet 2, and the air valve assembly 41 is used to connect or separate different cavities, thereby forming different air ducts, so that the air inside the water-cooling cabinet 2 can circulate and flow better. The air wheel assembly 42 is arranged in the first cavity 27, and is used to fully blow the air entering the water-cooling cabinet 2 to the first evaporator 32, and after the air flows through the first evaporator 32, it is sent into the interior of the energy storage cabinet 1 from the cold air port 21, so as to achieve the air cooling effect.

[0040] Specifically, refer to Figure 2 and Figure 3 The air valve assembly 41 includes a first air valve 411, a second air valve 412 and a third air valve 413, wherein the first air valve 411 is arranged on the first partition plate 25, and can achieve the connection or separation between the second cavity 28 and the third cavity 29 by opening and closing; the second air valve 412 is arranged on the second partition plate 26, and can achieve the connection or separation between the first cavity 27 and the second cavity 28 by opening and closing; the third air valve 413 is arranged at the fresh air inlet 23, and can achieve the connection and separation between the first cavity 27 and the external environment by opening and closing.

[0041] Reference Figure 2 and Figure 3The wind wheel assembly 42 includes a first wind wheel 421 and a second wind wheel 422. The first wind wheel 421 and the second wind wheel 422 are both located on the side of the first evaporator 32 away from the exhaust port 24. The first wind wheel 421 and the second wind wheel 422 rotate in opposite directions, and the airflow between the first wind wheel 421 and the second wind wheel 422 is in the direction of the first evaporator 32. In addition, two sets of driving motors for driving the first wind wheel 421 and the second wind wheel 422 to rotate are both arranged in the third cavity 29 to prevent the driving motors from affecting the cooling effect of the first evaporator 32 during normal operation. In this embodiment, the driving motors for driving the first wind wheel 421 and the second wind wheel 422 are both servo motors.

[0042] When the water-cooled air conditioner is operating normally, the first air valve 411 and the third air valve 413 are opened, and the second air valve 412 is closed. At this time, the first cavity 27 is separated from the second cavity 28, and the second cavity 28 is connected to the third cavity 29. The hot air inside the energy storage cabinet 1 enters the second cavity 28 of the water-cooled cabinet 2 from the return air port 22 at the bottom along with the air flow, and then flows through the first air valve 411 into the third cavity 29 and is discharged from the exhaust port 24. Due to the influence of the air pressure inside the water-cooled cabinet 2, the fresh air in the external environment can enter the first cavity 27 through the third air valve 413. Driven by the wind wheel assembly 42, the fresh air first flows through the first evaporator 32 for cooling, and then enters the energy storage cabinet 1 from the cold air port 21, thereby achieving air cooling. In addition, when the humidity in the energy storage cabinet 1 is too high, the first cavity 27 and the second cavity 28 can be connected, and the second cavity 28 and the third cavity 29 can be separated by opening only the second air valve 412 and closing the first air valve 411 and the third air valve 413. At this time, the internal air can circulate through the first evaporator 32 for many times, and the moisture in the air can be fully condensed on the surface of the first evaporator 32, thereby achieving a condensation and dehumidification effect.

[0043] Reference Figure 2 , Figure 3 and Figure 4 The liquid cooling mechanism 5 includes a cooling water tank 51, a water pump 52 and a plurality of groups of liquid cooling pads 53 which are interconnected by pipes. The cooling water tank 51 and the water pump 52 are both arranged in the second cavity 28 of the water cooling cabinet 2, and the second evaporator 33 is arranged in the cooling water tank 51. The second evaporator 33 can cool down the coolant in the cooling water tank 51. Figure 4 and Figure 5 Several groups of liquid cooling pads 53 are respectively arranged on several layers of racks 11 in the energy storage cabinet 1. Several groups of liquid cooling pads 53 are connected in parallel with each other and correspond one by one to the battery cluster groups 12 in the energy storage cabinet 1. The battery cluster groups 12 are placed above the liquid cooling pads 53 and fit together with the liquid cooling pads 53.

[0044] Reference Figure 4 , Figure 5and Figure 6 A cold liquid cavity 531 is provided inside the liquid cooling pad 53, and a liquid inlet 532 and a liquid outlet 533 connected to the cold liquid cavity 531 are provided. Specifically, the water inlet end of the water pump 52 is connected to the cooling water tank 51, and the water pump 52 and the liquid cooling pad 53 are connected through a cold water pipe 54. The cold water pipe 54 is provided with a plurality of groups of cold water branches 541 connected to the liquid inlet 532 of each layer of the liquid cooling pad 53. The liquid cooling pad 53 and the cooling water tank 51 are connected through a return water pipe 55. The return water pipe 55 is also provided with a plurality of groups of return water branches 551 connected to the liquid outlet 533 of each layer of the liquid cooling pad 53, thereby forming a closed cooling water circuit.

[0045] When the liquid cooling mechanism 5 works normally, the water pump 52 first pumps the coolant in the cooling water tank 51 into the liquid cooling pad 53 located in the energy storage cabinet 1, and the coolant enters the cold liquid cavity 531 of the liquid cooling pad 53 along the cold water pipe 54, and fully exchanges heat with the battery cluster group 12 in the liquid cooling pad 53, and then flows back to the cooling water tank 51 along the return pipe 55, and finally the coolant in the cooling water tank 51 is cooled and circulated through the second evaporator 33.

[0046] Reference Figure 4 and Figure 5 Further, several groups of liquid cooling pads 53 are provided with valve assemblies 56 capable of controlling the circulation of cooling liquid. Specifically, the valve assembly 56 includes a pressure sensor 561, a cold water valve 562 and a return water valve 563, wherein the cold water valve 562 and the return water valve 563 are respectively arranged on the cold water branch pipe 541 and the return water branch pipe 551 connecting each layer of liquid cooling pads 53, the pressure sensor 561 is arranged on the liquid cooling pad 53, and the pressure sensor 561 is electrically connected to the cold water valve 562 and the return water valve 563. The cold water valve 562 and the return water valve 563 can be small valve devices that can be electrically controlled. In this embodiment, the cold water valve 562 and the return water valve 563 are both electromagnetic valves.

[0047] Therefore, when the battery cluster group 12 is placed on the liquid cooling pad 53, the pressure sensor 561 is subjected to pressure and controls the cold water valve 562 and the return water valve 563 to open, and the coolant can flow into the cold liquid channel 531 of the corresponding layer of the liquid cooling pad 53, and liquid cool the bottom of the battery cluster group 12 located above. On the contrary, when there is no battery cluster group 12 placed on the liquid cooling pad 53, the pressure sensor 561 is not subjected to pressure, and the cold water valve 562 and the return water valve 563 are both in a closed state, and the coolant cannot flow through the liquid cooling pad 53 of this layer.

[0048] Reference Figure 4 and Figure 5Furthermore, the water cooling mechanism also includes a secondary air cooling component 57, which is used to cooperate with the liquid cooling pad 53 to promote the flow and circulation of cold air inside the energy storage cabinet 1. Specifically, the secondary air cooling component 57 includes a water flow sensor 571 and a ventilator 572. The water flow sensor 571 is arranged on the return branch pipe 551 of each layer of the liquid cooling pad 53, and is located on the side of the return valve 563 close to the liquid cooling pad 53. The water flow sensor 571 is electrically connected to the ventilator 572, and is used to control the opening or closing of the ventilator 572 according to the flow of cooling water at that layer. The guide fan 572 is mounted on the bottom side of the liquid cooling pad 53 through the placement frame 11, and the air outlet of the guide fan 572 is facing away from the liquid cooling pad 53, and the bottom of the placement plate is hollowed out. The guide fan 572 and the liquid cooling pad 53 are interconnected, so that the cold air at the bottom of the liquid cooling pad 53 can be blown to the next layer of battery cluster group 12 through the guide fan 572, which can not only make the air flow inside the energy storage cabinet 1 flow fully and accelerate the air circulation inside the energy storage cabinet 1 and the water cooling cabinet 2, but also can use the upper layer of liquid cooling pad 53 to cool the top of the battery cluster group 12 of the next layer, which is beneficial to improve the heat dissipation efficiency of the battery cluster group 12.

[0049] The implementation principle of a water-cooled air conditioner for an industrial and commercial energy storage cabinet in the embodiment of the present application is as follows: When the battery cluster group 12 is normally placed on the placement rack 11 and working, the cold pump mechanism 3, the air cooling mechanism 4 and the liquid cooling mechanism 5 are started at the same time. Through the circulation of the refrigerant in the cold pump mechanism 3, the first evaporator 32 and the second evaporator 33 can cool down the surrounding environment, and then the battery cluster group 12 in the energy storage cabinet 1 is fully cooled through the cooperation of the air cooling mechanism 4 and the liquid cooling mechanism 5.

[0050] The first wind wheel 421 and the second wind wheel 422 blow the air flowing into the first cavity 27 toward the first evaporator 32, and the first evaporator 32 can cool and dehumidify the air flowing through it, and then the dry cold air can be discharged from the cold air outlet 21 to the inside of the energy storage cabinet 1, and finally enter the inside of the water cooling cabinet 2 from the return air outlet 22 for circulation or discharge, thereby realizing air cooling and cooling inside the energy storage cabinet 1. The second evaporator 33 can cool and cool the coolant in the cooling water tank 51, and then the cooling water is pumped by the water pump 52 to each layer of the liquid cooling pad 53 in the energy storage cabinet 1, and directly cools and cools the bottom of the battery cluster group 12, and finally flows back to the return cooling water tank 51 and is cooled and cooled again by the second evaporator 33, thereby realizing liquid cooling and cooling of the battery cluster group 12.

[0051] In addition, by arranging a guide fan 572 on the bottom side of the placement rack 11, the guide fan 572 can use the cold air near the liquid cooling pad 53 of the upper layer to perform air cooling on the top of the battery cluster group 12 of the lower layer when the liquid cooling pad 53 liquid-cools the battery cluster group 12, which is beneficial to improving the heat dissipation efficiency of the battery cluster group 12.

[0052] This specific implementation manner is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the specific implementation manner as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A water-cooled air conditioner for an industrial and commercial energy storage cabinet, characterized in that: include: A water-cooling cabinet (2) is arranged on one side of the energy storage cabinet (1), and is provided with a cold air outlet (21) connected to the top end of the energy storage cabinet (1), a return air outlet (22) connected to the bottom end of the energy storage cabinet (1), and a fresh air outlet (23) and an exhaust air outlet (24) connected to the external environment; A cold pump mechanism (3) is arranged inside the water-cooling cabinet (2), comprising a compressor unit (31), a first evaporator (32), a second evaporator (33), and a condensing and cooling component (34) connected to each other by pipelines; An air cooling mechanism (4), the air cooling mechanism (4) comprising a wind wheel assembly (42), the wind wheel assembly (42) being used to blow air entering the interior of the water cooling cabinet (2) toward the first evaporator (32), and to allow the air to be sent from the cold air port (21) into the energy storage cabinet (1); The liquid cooling mechanism (5) is used to cooperate with the second evaporator (33) to perform liquid cooling on the battery cluster group (12) in the energy storage cabinet (1).

2. A water-cooled air conditioner for industrial and commercial energy storage cabinet according to claim 1, characterized in that: A first partition (25) and a second partition (26) are provided inside the water-cooling cabinet (2), wherein the first partition (25) divides the inside of the water-cooling cabinet (2) into a first cavity (27), a second cavity (28) and a third cavity (29), wherein the first partition (25) is located between the third cavity (29) and the first cavity (27), and the second cavity (28), and the second partition (26) is located between the first cavity (27) and the second cavity (28); The first partition plate (25) is provided with a first air valve (411) for connecting or separating the second cavity (28) and the third cavity (29); the cold air inlet (21) is provided in the first cavity (27); the return air inlet (22) is provided in the second cavity (28); the fresh air inlet (23) is provided in the first cavity (27); the exhaust air outlet (24) is provided in the third cavity (29); the first evaporator (32) and the wind wheel assembly (42) are both provided in the first cavity (27); and the compressor unit (31) and the condensation and heat dissipation assembly (34) are provided in the third cavity (29).

3. A water-cooled air conditioner for industrial and commercial energy storage cabinet according to claim 2, characterized in that: The second partition plate (26) is provided with a second air valve (412) for connecting or separating the first cavity (27) and the second cavity (28), and the fresh air outlet (23) is provided with a third air valve (413).

4. A water-cooled air conditioner for industrial and commercial energy storage cabinet according to claim 2, characterized in that: The wind wheel assembly (42) comprises a first wind wheel (421) and a second wind wheel (422), wherein the first wind wheel (421) and the second wind wheel (422) are both arranged on a side of the first evaporator (32) away from the cold air outlet (21), the first wind wheel (421) and the second wind wheel (422) rotate in opposite directions, and the air flow direction between the first wind wheel (421) and the second wind wheel (422) is towards the first evaporator (32).

5. A water-cooled air conditioner for industrial and commercial energy storage cabinet according to claim 4, characterized in that: The driving motors respectively used to drive the first wind wheel (421) and the second wind wheel (422) are both arranged in the third cavity (29).

6. A water-cooled air conditioner for an industrial and commercial energy storage cabinet according to claim 2, characterized in that: The liquid cooling mechanism (5) comprises a cooling water tank (51), a water pump (52), and a plurality of groups of liquid cooling pads (53) which are interconnected by pipes; the cooling water tank (51) and the water pump (52) are both arranged in the second cavity (28); the second evaporator (33) is arranged in the cooling water tank (51); and the plurality of groups of liquid cooling pads (53) are respectively arranged on a placement rack (11) in the energy storage cabinet (1) and are correspondingly fitted to the bottom of the battery cluster group (12).

7. A water-cooled air conditioner for industrial and commercial energy storage cabinet according to claim 6, characterized in that: The liquid cooling pad (53) is provided with a cold liquid cavity (531) inside, and is provided with a liquid inlet (532) and a liquid outlet (533) connected to the cold liquid cavity (531); the water pump (52) is connected to the liquid cooling pad (53) via a cold water pipe (54), and the cold water pipe (54) is provided with a plurality of groups of cold water branches (541) connected to the liquid inlets (532) of the plurality of groups of liquid cooling pads (53); the liquid cooling pad (53) is connected to the cooling water tank (51) via a return water pipe (55), and the return water pipe (55) is provided with a plurality of groups of return water branches (551) connected to the liquid outlets (533) of the plurality of groups of liquid cooling pads (53).

8. A water-cooled air conditioner for industrial and commercial energy storage cabinet according to claim 7, characterized in that: The liquid cooling mechanism (5) further comprises a valve assembly (56), wherein the valve assembly (56) comprises a pressure sensor (561), a cold water valve (562) and a return water valve (563); the pressure sensor (561) is arranged on the liquid cooling pad (53); the cold water valve (562) and the return water valve (563) are arranged on the cold water branch pipe (541) and the return water branch pipe (551), respectively; and the pressure sensor (561) is electrically connected to the cold water valve (562) and the return water valve (563), respectively.

9. A water-cooled air conditioner for industrial and commercial energy storage cabinet according to claim 8, characterized in that: The liquid cooling mechanism (5) also includes a secondary air cooling component (57), the secondary air cooling module including a water flow sensor (571) and a fan guide (572), the fan guide (572) being arranged on the bottom side of the liquid cooling pad (53), the air outlet of the fan guide (572) facing the side away from the liquid cooling pad (53), the water flow sensor (571) being arranged on the return branch pipe and located on the side of the return valve close to the liquid cooling pad (53), the water flow sensor (571) being connected to the fan guide (572) by electrical signals, and being used to control the opening or closing of the fan guide (572) according to the water flow condition in the return branch pipe (551) of the layer.

10. A water-cooled air conditioner for industrial and commercial energy storage cabinet according to claim 1, characterized in that: The return air port (22) is provided with a dustproof screen (221).

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