Energy storage cooling system

Abstract

The invention discloses an energy storage cooling system, and relates to the technical field of energy storage cooling, the energy storage cooling system comprises an energy storage box, an energy storage unit, a liquid cooling assembly, a ventilation box and a plurality of fan assemblies, the energy storage unit is arranged in an inner cavity of the energy storage box, and the energy storage unit comprises a supporting plate used for placing a battery module; a liquid cooling plate is embedded in the supporting plate, a first connector and a second connector which are connected with the liquid cooling plate are arranged on the supporting plate, the liquid cooling assembly is connected with the first connector and the second connector and used for circularly conveying cooling liquid, the ventilation box is arranged at the top of the energy storage box, and the ventilation box is provided with a ventilation groove communicated with an inner cavity of the energy storage box. The multiple fan assemblies are arranged at the bottom of the energy storage box and used for conveying air to an inner cavity of the energy storage box. According to the energy storage cooling system, the energy storage box is cooled through air cooling and liquid cooling at the same time, the transient high heat load requirement of a high-power energy storage system can be met, and the high load capacity, the heat dissipation capacity, the efficiency and the operation safety of the energy storage system are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of energy storage cooling technology, and more specifically, to an energy storage cooling system. Background Technology

[0002] High-voltage cascaded energy storage is a power energy storage system integration technology. Its core feature is connecting multiple energy storage units in series to form a high-voltage output architecture, directly connecting to the medium- and high-voltage power grid. This eliminates the need for traditional step-up transformers, avoiding transformer losses and further improving system efficiency. However, high-voltage cascaded energy storage systems have larger single-unit capacity and power compared to traditional electrochemical energy storage systems, thus facing more severe heat dissipation challenges during operation. When high-voltage cascaded energy storage systems undergo high-power charging and discharging, the single cooling method of traditional liquid cooling plates cannot meet the high heat load demands caused by transient high power. Furthermore, in traditional electrochemical energy storage systems, cooling units and battery modules are usually designed independently. This design easily leads to heat retention, affecting local heat dissipation and reducing overall cooling efficiency. To meet the high-power operation requirements of high-voltage direct-connected energy storage systems, it is necessary to develop and design cooling systems with stronger heat dissipation capabilities. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art.

[0004] To address this, this invention proposes an energy storage cooling system that can meet the transient high heat load requirements of energy storage systems, improving the heat dissipation capacity and efficiency of battery modules as well as the safety of energy storage system operation.

[0005] The energy storage cooling system of this invention includes: An energy storage box, wherein the inner top wall of the energy storage box is provided with a flow guide groove; An energy storage unit is provided in the inner cavity of the energy storage box and multiple energy storage units are spaced apart in the left-right direction. The energy storage unit includes multiple support plates for placing battery modules. A liquid cooling plate is embedded in the support plate. The support plate is provided with a first connector and a second connector connected to the liquid cooling plate. A liquid cooling assembly, which is connected to the first connector and the second connector respectively and is used to circulate and deliver coolant. A venting box is provided on the top of the energy storage box corresponding to the flow guide groove, and the venting box is provided with multiple venting grooves that communicate with the inner cavity of the energy storage box. Multiple fan assemblies are spaced apart at the bottom of the energy storage box and are used to supply air into the interior of the energy storage box.

[0006] The energy storage cooling system of the present invention dissipates heat from the energy storage tank through both air cooling and liquid cooling. It is applicable to the transient high heat load requirements of high-power energy storage systems, including high-voltage cascaded energy storage systems, and significantly improves the high load capacity, heat dissipation capacity, efficiency, and operational safety of the energy storage system.

[0007] In some embodiments, the energy storage unit includes a first frame, a heat insulation plate, and a second frame arranged sequentially in the left-right direction. The first frame and the second frame are respectively provided with support plates, and the support plates on the first frame and the support plates on the second frame are staggered in the vertical direction.

[0008] In some embodiments, the first frame includes a first plate, on which a plurality of first insertion holes extending in the front-back direction are spaced apart along the vertical direction, and a plurality of air holes are spaced apart on the first plate. A plurality of support plates are respectively inserted into and fitted into the plurality of first insertion holes and are located on the side of the support plate near the heat insulation plate. A first support column is detachably provided between two adjacent support plates. The second frame has the same structure as the first frame.

[0009] In some embodiments, the system further includes a main control box and a plurality of sub-control boxes disposed on the side wall of the energy storage box. Each sub-control box is disposed in correspondence with the heat insulation plate. The heat insulation plate includes a plate body and cold-conducting pipes spaced apart in the vertical direction. Each sub-control box is equipped with a pump body, and the output end of the pump body is connected to the cold-conducting pipes through a connecting hose.

[0010] In some embodiments, a distribution plate is provided parallel to and spaced apart above the bottom plate of the energy storage box, and an air outlet cavity is restricted between the distribution plate, the bottom plate of the energy storage box, and the side wall of the energy storage box. A plurality of first holes are provided at intervals on the distribution plate, and the first holes connect the air outlet cavity with the inner cavity of the energy storage box.

[0011] In some embodiments, a drying layer is provided inside the air cavity, which is used to adsorb water vapor in the air to be entered into the inner cavity of the energy storage box.

[0012] In some embodiments, a water filter membrane is provided on the side of the distribution plate near the bottom plate. The water filter membrane is used to filter water vapor in the air to be entered into the inner cavity of the energy storage box. The bottom of the energy storage box is provided with a drain pipe that communicates with the air cavity and is used to discharge water.

[0013] In some embodiments, a water collection plate is provided in the guide channel corresponding to the vent box, and a drain plate extending out of the energy storage box is provided at the front and rear ends of the water collection plate, respectively. The drain plate is used to collect water flowing or condensed on the water collection plate, and multiple drain grooves are provided on the drain plate at intervals along the left and right direction. The drain grooves are provided with drain outlets for discharging water.

[0014] In some embodiments, a filter plate is provided below the water collection plate, the filter plate is provided with a plurality of second holes spaced apart, and a plurality of heat-conducting columns are provided on the side of the filter plate opposite to the water collection plate.

[0015] In some embodiments, the liquid cooling assembly includes a liquid cooling box, a storage box, a circulation pump, and a cooler. The liquid cooling box stores coolant. The storage box is disposed in the liquid cooling box and is used to add coolant to the liquid cooling box. The circulation pump is disposed in the liquid cooling box and connected to the first connector or the second connector. The cooler is disposed in the liquid cooling box and is used to cool the coolant.

[0016] In some embodiments, a cooling box is further included, which is disposed in the energy storage box. The air inlet of the cooling box is connected to a filter box for filtering water vapor and dust in the air, and the exhaust end of the cooling box is connected to a cooling pipe extending into the energy storage box. The cooling box cools the air and delivers the cooled air to the inner cavity of the energy storage box through the cooling pipe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram from a first perspective of the energy storage cooling system according to an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram from a second perspective of the energy storage cooling system according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the installation of the energy storage unit in the energy storage cooling system according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the installation of the distribution plate in the energy storage cooling system of this invention.

[0021] Figure 5 This is a schematic diagram of the installation of the filter plate in the energy storage cooling system of this invention.

[0022] Figure 6 This is a schematic diagram of the structure of the energy storage unit in the energy storage cooling system of this invention.

[0023] Figure 7 This is a schematic diagram of the structure of the first frame in the energy storage cooling system of this invention.

[0024] Figure 8 This is a schematic diagram of the structure of the heat insulation plate in the energy storage cooling system of this invention.

[0025] Figure label: Energy storage box 1; flow guide trough 11; distribution plate 12; first hole 121; water collection plate 13; drainage plate 14; drainage trough 141; drain outlet 142; filter plate 15; second hole 151; heat conduction column 152; Energy storage unit 2; support plate 21; liquid cooling plate 211; first connector 212; second connector 213; first frame 22; first plate 221; first insertion hole 222; air hole 223; heat insulation plate 23; plate body 231; cold guiding pipe 232; second frame 24; support column 25; Liquid cooling assembly 3; liquid cooling box 31; storage box 32; 4. Ventilation box; 41. Ventilation slot; Fan assembly 5; Main control box 6; 7. Sub-control box; Cooling box 8; Filter box 9; Refrigeration pipe 10. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0027] like Figures 1 to 8 As shown, the energy storage cooling system of this embodiment includes an energy storage box 1, an energy storage unit 2, a liquid cooling component 3, a vent box 4, and multiple fan components 5. The length direction of the energy storage box 1 is defined as the left-right direction, the width direction of the energy storage box 1 is defined as the front-back direction, and the height direction of the energy storage box 1 is defined as the up-down direction. The inner top wall of the energy storage box 1 is provided with a guide groove 11. The energy storage unit 2 is located in the inner cavity of the energy storage box 1 and is provided with multiple units spaced apart along the left-right direction. The energy storage unit 2 includes multiple support plates 21 for placing battery modules. A liquid cooling plate 211 is embedded on the support plate 21. The support plate 21 is provided with a first connector 212 and a second connector 213 connected to the liquid cooling plate 211. The liquid cooling component 3 is connected to the first connector 212 and the second connector 213 respectively and is used to circulate and transport coolant. The vent box 4 is located at the top of the energy storage box 1 corresponding to the guide groove 11. The vent box 4 is provided with multiple vent grooves 41 communicating with the inner cavity of the energy storage box 1. Multiple fan components 5 are spaced apart at the bottom of the energy storage box 1 and are used to transport air into the inner cavity of the energy storage box 1.

[0028] In use, the energy storage cooling system of this embodiment delivers coolant to the liquid cooling plate 211 through the first connector 212 and the second connector 213, and returns the circulating liquid after heat exchange with the battery module to the liquid cooling system 3. At the same time, multiple fan assemblies 5 operate to deliver cold air from outside the energy storage box 1 into the energy storage box 1. The cold air entering the energy storage box 1 exchanges heat with the air inside the energy storage box 1 and removes the temperature from the surface of the battery module. The air inside the energy storage box 1 is discharged through the guide channel 11 and the vent box 4, thereby achieving heat dissipation and cooling of the battery module.

[0029] The energy storage cooling system of this invention performs air cooling and liquid cooling simultaneously through the fan assembly 5 and the liquid cooling assembly 3, which can meet the transient heat load requirements of the energy storage system. By setting the guide channel 11 and the vent box 4, the air circulation in the inner cavity of the energy storage box 1 can be accelerated, avoiding the occurrence of heat flow concentration, improving the heat dissipation capacity and efficiency of the battery module and the safety of the energy storage system during operation.

[0030] Optionally, the liquid cooling plate 211 is provided with a heat exchange channel, and the two ends of the heat exchange channel are respectively connected to the first connector 212 and the second connector 213.

[0031] Optionally, the energy storage box 1 includes a box body and a first side plate and a second side plate respectively provided on the front and rear sides. The box body is provided with a U-shaped or rectangular sealing groove. The first side plate and the second side plate are respectively provided with sealing blocks of appropriate size corresponding to the sealing groove. The sealing blocks are used to insert and cooperate with the sealing groove. The first side plate and the second side plate can be further fixed to the box body by connecting bolts to increase the stability and reliability of the first side plate and the second side plate during installation.

[0032] In some embodiments, such as Figure 3 , Figure 6 and Figure 7 As shown, the energy storage unit 2 includes a first frame 22, a heat insulation plate 23 and a second frame 24 arranged sequentially in the left-right direction. The first frame 22 and the second frame 24 are respectively provided with support plates 21, and the support plates 21 on the first frame 22 and the support plates 21 on the second frame 24 are staggered in the up-down direction.

[0033] By setting up the heat insulation plate 23 and staggering the support plate 21 in the vertical direction, a three-dimensional staggered heat dissipation unit can be formed, which avoids hot air convection and facilitates heat dissipation of the battery module, thereby improving heat dissipation efficiency.

[0034] Optionally, slots are provided at intervals on the heat insulation plate 23 for supplying cables for the battery module.

[0035] In some embodiments, such as Figure 6 and Figure 7As shown, the first frame 22 includes a first plate 221, which has a plurality of first insertion holes 222 extending in the front-back direction at intervals along the vertical direction, and a plurality of air holes 223 at intervals on the first plate 221. On the first frame 22, a plurality of support plates 21 are respectively inserted into the plurality of first insertion holes 222 and are located on the side of the support plate 21 near the heat insulation plate 23. A first support column 25 is detachably provided between two adjacent support plates 21. The second frame 24 includes a second plate, which has a plurality of second insertion holes extending in the front-back direction at intervals along the vertical direction, and a plurality of air holes 223 at intervals on the second plate. On the second frame 24, a plurality of support plates 21 are respectively inserted into the plurality of second insertion holes and are located on the side of the support plate 21 near the heat insulation plate 23. A second support column 25 is detachably provided between two adjacent support plates 21.

[0036] Specifically, the top of the inner cavity of the energy storage box 1 is provided with two parallel and spaced hanging rails, and the bottom of the inner cavity of the energy storage box 1 is provided with two parallel and spaced sliding rails. One end of the sliding rail is provided with a limiting strip. The bottom of the first plate 221 is slidably mounted on the sliding rail, and the top of the first plate 221 is slidably mounted on the hanging rail. The bottom of the heat insulation plate 23 is slidably mounted on the sliding rail, and the top of the heat insulation plate 23 is slidably mounted on the hanging rail. The bottom of the second plate is slidably mounted on the sliding rail, and the top of the second plate is slidably mounted on the hanging rail. A support column 25 is provided between two adjacent support plates 21. A slider is provided on the lower support column 25. The slider is slidably mounted on the sliding rail. The air holes 223 on the first plate 221 and the air holes 223 on the second plate form air supply channels with the guide groove 11 to facilitate heat exchange and cooling of each battery module.

[0037] Optionally, the length of the support column 25 is adjustable, and each end of the support column 25 is provided with a plug. The plug is used to insert and cooperate with the adjacent support plate 21, so as to facilitate the installation of the support column 25 and the support plate 21 and improve the stability of the support plate 21 after installation.

[0038] Optionally, the support column 25 is equipped with a spring rubber damper to reduce the impact of vibration on the delivery of coolant.

[0039] In some embodiments, such as Figure 2 and Figure 8 As shown, it also includes a main control box 6 and multiple sub-control boxes 7 located on the side wall of the energy storage box 1. The sub-control boxes 7 are arranged one-to-one with the heat insulation plate 23. The heat insulation plate 23 includes a plate body 231 and cooling pipes 232 spaced along the vertical direction on the plate body 231. A pump body is provided inside the sub-control box 7. The output end of the pump body is connected to the cooling pipes 232 through a connecting hose.

[0040] Specifically, the sub-control box 7 is equipped with a heat exchange tank. The main control box 6 and the sub-control box 7 are connected by a cable. The main control box 6 controls multiple sub-control boxes 7 to operate. The sub-control box 7 controls the corresponding pump to deliver gas into the cooling pipe 232, thereby achieving heat dissipation of the heat insulation plate 23. The heat dissipation of the heat insulation plate 23 further drives the heat dissipation of the battery module, improving the heat dissipation efficiency in the energy storage box 1.

[0041] Optionally, the air discharged from the other end of the cooling pipe 232 can directly enter the energy storage chamber or be transported to the vent box 4 through a pipe.

[0042] Optionally, a cooling element is provided on the air inlet side of the pump body to cool the air entering the pump body.

[0043] Optionally, the main control box 6 is equipped with control buttons.

[0044] In some embodiments, such as Figure 4 As shown, a distribution plate 12 is provided parallel to and spaced apart above the bottom plate of the energy storage box 1. The distribution plate 12, the bottom plate of the energy storage box 1, and the side wall of the energy storage box 1 restrict the air outlet cavity. A plurality of first holes 121 are provided on the distribution plate 12 at intervals. The first holes 121 connect the air cavity and the inner cavity of the energy storage box 1.

[0045] The fan assembly 5 delivers air into the air chamber, and the distribution plate 12 regulates the airflow so that the airflow enters the inner cavity of the energy storage box 1 in a uniform distribution state, thereby improving the heat exchange effect after the air enters the inner cavity of the energy storage box 1, avoiding the formation of heat exchange "dead zones", and further improving the heat exchange effect of the energy storage system.

[0046] Optionally, the array of first holes 121 is provided in multiple groups, and each group of first holes 121 is honeycomb-shaped.

[0047] In some embodiments, a drying layer is provided inside the air cavity, which is used to adsorb water vapor in the air to be entered into the inner cavity of the energy storage box 1.

[0048] By setting up a drying layer, moisture in the air is adsorbed, preventing moisture from condensing into liquid inside the energy storage tank 1 and interfering with the operation of the energy storage system, thus ensuring safety and reliability.

[0049] Alternatively, the drying layer may be made of silica gel, calcium chloride crystals, or anhydrous sodium sulfate crystals.

[0050] In some embodiments, a water filter membrane is provided on the side of the distribution plate 12 near the bottom plate. The water filter membrane is used to filter water vapor in the air to be entered into the inner cavity of the energy storage box 1. A drain pipe is provided at the bottom of the energy storage box 1, which communicates with the air cavity and is used to discharge water.

[0051] By setting up a water filter membrane to filter water vapor in the air, the water vapor condenses and gathers in the air cavity and is discharged through the drain pipe, ensuring the dryness of the air entering the inner cavity of the energy storage tank 1, and ensuring the safety and reliability of the energy storage system during operation.

[0052] In some embodiments, such as Figure 4 As shown, a water collection plate 13 is provided in the flow channel 11 corresponding to the vent box 4. The front and rear ends of the water collection plate 13 are respectively provided with drainage plates 14 extending out of the energy storage box 1. The drainage plates 14 are used to collect the water flowing or condensed on the water collection plate 13. Multiple drainage channels 141 are provided on the drainage plate 14 at intervals along the left and right direction. Drainage outlets 142 for discharging water are provided in the drainage channels 141.

[0053] Specifically, the air in the inner cavity of the energy storage box 1 gathers at the top. When there is water vapor in the air, the water vapor condenses into liquid on the water collection plate 13 and flows into the drainage plate 14 along the water collection plate 13. The water is discharged through the drainage groove 141 and the drainage outlet 142 in the drainage plate 14, which avoids water falling on the battery module and interfering with the operation of the energy storage system, thus ensuring safety and reliability.

[0054] Optionally, the middle part of the water collection plate 13 is higher than the front and rear ends to facilitate the drainage of condensed water.

[0055] In some embodiments, such as Figure 5 As shown, a filter plate 15 is provided below the water collection plate 13. The filter plate 15 is provided with a plurality of second holes 151 at intervals, and a plurality of heat-conducting columns 152 are provided on the side of the filter plate 15 away from the water collection plate 13.

[0056] The air in the inner cavity of the energy storage box 1 reaches the water collection plate 13 through the filter plate 15. The multiple second holes 151 on the filter plate 15 allow the air in the inner cavity of the energy storage box 1 to be discharged in a uniformly distributed state, while increasing the contact between the air and the heat-conducting column 152, further realizing the heat exchange effect of the air in the air cavity.

[0057] In some embodiments, a humidity sensor is provided on the drainage plate 14 or the filter plate 15. The humidity sensor is electrically connected to the main control box 6, and the main control box 6 is electrically connected to the fan assembly 5. The temperature sensor transmits the measured air humidity to the main control box 6. When the measured air humidity is less than the set humidity value, the main control box 6 controls the fan assembly 5 to rotate at a first speed or to rotate intermittently. When the measured air humidity is not less than the set humidity value, the main control box 6 controls the fan assembly 5 to rotate at a second speed or to rotate continuously, wherein the first speed is less than the second speed.

[0058] By using temperature sensors and a main controller to further control the operation of the fan assembly 5 in stages, the heat dissipation and cooling efficiency of the energy storage box 1 is improved while reducing energy consumption.

[0059] In some embodiments, such as Figure 1 and Figure 3 As shown, the liquid cooling assembly 3 includes a liquid cooling box 31, a storage box 32, a circulation pump, and a cooler. The liquid cooling box 31 stores coolant. The storage box 32 is located in the liquid cooling box 31 and is used to add coolant to the liquid cooling box 31. The circulation pump is located in the liquid cooling box 31 and is connected to the first connector 212 or the second connector 213. The cooler is located in the liquid cooling box 31 and is used to cool the coolant.

[0060] Specifically, the cooling pump cools the coolant inside the liquid cooling box 31. The output end of the circulation pump is connected to the first connector 212 via a connecting hose. The circulation pump delivers the coolant to the cooling plate and returns it to the liquid cooling box 31 via the second connector 213 and the connecting hose, thus realizing the circulation of the coolant. The storage box 32 is installed in the liquid cooling box 31 and communicates with it. Coolant is injected into the storage box 32 to replenish the coolant in the liquid cooling box 31. The operation is convenient and improves the cooling effect of the coolant on the battery module.

[0061] Optionally, the circulating pump and the cooler are electrically connected to the main control box 6 respectively. A temperature sensor is provided on the support plate 21. The temperature sensor is electrically connected to the main control box 6. When the temperature measured by the temperature sensor is lower than the set temperature value, the main control box 6 controls the circulating pump to deliver coolant at a first power. When the temperature measured by the temperature sensor is not lower than the set temperature value, the main control box 6 controls the circulating pump to deliver coolant at a second power and controls the cooler to operate, wherein the second power is not less than the first power.

[0062] In some embodiments, such as Figure 5 As shown, it also includes a refrigeration box 8, which is located in the energy storage box 1. The air inlet of the refrigeration box 8 is connected to a filter box 9 for filtering water vapor and dust in the air. The exhaust end of the refrigeration box 8 is connected to a refrigeration pipe 10 that extends into the energy storage box 1. The refrigeration box 8 refrigerates the air and delivers the refrigerated air to the inner cavity of the energy storage box 1 through the refrigeration pipe 10.

[0063] After being filtered by the filter box 9, the air reaches the cooling box 8. The cooling box 8 is equipped with a pump and a cooling component. The cooling component cools the air, and the pump delivers the cooled air to the inner cavity of the energy storage box 1 through the cooling pipe 10. The cold air mixes with the air in the inner cavity of the energy storage box 1, further removing the excess heat from the inner cavity of the energy storage box 1 and improving the heat dissipation and cooling efficiency.

[0064] Optionally, the cooling pipe 10 is located at the top or bottom of the inner cavity of the energy storage box 1.

[0065] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0067] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0068] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0070] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An energy storage cooling system, characterized by, The energy storage box comprises: an inner top wall of the energy storage box is provided with a flow guide groove; a plurality of energy storage units are arranged in the inner cavity of the energy storage box and are spaced apart in the left-right direction, the energy storage unit comprises a plurality of support plates for placing battery modules, a liquid cooling plate is embedded on the support plate, the support plate is provided with a first joint and a second joint connected with the liquid cooling plate; a liquid cooling assembly is connected with the first joint and the second joint respectively and is used for circulating and conveying cooling liquid; a ventilation box is arranged on the top of the energy storage box corresponding to the flow guide groove, the ventilation box is provided with a plurality of ventilation grooves in communication with the inner cavity of the energy storage box; a plurality of fan assemblies are arranged at the bottom of the energy storage box and are used for conveying air to the inner cavity of the energy storage box.

2. The energy storage cooling system of claim 1, wherein, The energy storage unit comprises a first frame body, a heat insulation plate and a second frame body arranged in sequence in the left-right direction, the first frame body and the second frame body are respectively provided with support plates, and the support plates on the first frame body and the second frame body are arranged in a staggered manner in the up-down direction.

3. The energy storage cooling system of claim 2, wherein, The first frame body comprises a first plate, a plurality of first insertion holes extending in the front-back direction are arranged in the up-down direction on the first plate, a plurality of air holes are arranged on the first plate, a plurality of support plates are respectively inserted and matched in a plurality of first insertion holes and arranged on the side of the support plate close to the heat insulation plate, a first support column can be arranged between adjacent two support plates, and the second frame body has the same structure as the first frame body.

4. The energy storage cooling system of claim 2, wherein, Further comprising a main control box and a plurality of sub-control boxes arranged on the side wall of the energy storage box, the sub-control boxes are arranged one by one corresponding to the heat insulation plates, the heat insulation plate comprises a plate body and a cold pipe arranged in the up-down direction on the plate body, a pump body is arranged in the sub-control box, and the output end of the pump body is connected with the cold pipe through a connecting hose.

5. The energy storage cooling system of any one of claims 1-4, wherein, A distribution plate is arranged in parallel and spaced apart above the bottom plate of the energy storage box, an air cavity is limited between the distribution plate, the bottom plate of the energy storage box and the side wall of the energy storage box, a plurality of first holes are arranged in the distribution plate, and the first holes are in communication with the air cavity and the inner cavity of the energy storage box.

6. The energy storage cooling system of claim 5, wherein, A drying layer is arranged in the air cavity, and the drying layer is used for adsorbing water vapor in air to be introduced into the inner cavity of the energy storage box. Alternatively, a water filtering membrane is arranged on the side of the distribution plate close to the bottom plate, the water filtering membrane is used for filtering water vapor in air to be introduced into the inner cavity of the energy storage box, and a drain pipe is arranged at the bottom of the energy storage box and is in communication with the air cavity and is used for discharging water.

7. The energy conserving cooling system of any of claims 1-4, wherein, A water collecting plate is arranged in the flow guide groove corresponding to the ventilation box, drain plates are arranged at the front and back ends of the water collecting plate respectively and extend out of the energy storage box, the drain plates are used for collecting water flowing or condensing on the water collecting plate, a plurality of drain grooves are arranged in the left-right direction on the drain plates, and a drain port for discharging water is arranged in the drain groove.

8. The energy storage cooling system of claim 7, wherein, A sub-filter plate is arranged below the water collecting plate, a plurality of second holes are arranged in the sub-filter plate, and a plurality of heat conducting columns are arranged on the side of the sub-filter plate away from the water collecting plate.

9. The energy conserving cooling system of any of claims 1-4, wherein, The liquid cooling assembly comprises a liquid cooling box, a storage box, a circulating pump and a refrigerator, the liquid cooling box stores cooling liquid, the storage box is arranged in the liquid cooling box and is used for adding cooling liquid to the liquid cooling box, the circulating pump is arranged in the liquid cooling box and is connected with the first joint or the second joint, and the refrigerator is arranged in the liquid cooling box and is used for refrigerating the cooling liquid.

10. The energy storage cooling system of any one of claims 1-4, wherein, The energy storage box is further provided with a refrigeration box, an air filter box is connected to an air inlet end of the refrigeration box, and a refrigeration pipe is connected to an air outlet end of the refrigeration box and extends into the energy storage box, so that the refrigeration box can refrigerate air and send the refrigerated air to the inner cavity of the energy storage box through the refrigeration pipe.

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