Cooling system, energy storage device and energy storage system

Abstract

The present application provides a cooling system, an energy storage device and an energy storage system, wherein the cooling system includes a condenser, a radiator and a fan; the condenser takes in and out air along a first direction; the radiator is arranged on one side of the condenser along the first direction; at least one fan is arranged between the radiator and the condenser, and the fan is configured to be able to draw air and blow air along the first direction. The cooling system provided by the present application is conducive to reducing the speed of the fan, thereby reducing the size of the noise generated by the fan and the cooling system, while meeting the heat dissipation requirements of the condenser and the radiator, and is conducive to reducing the size of the measured noise during the noise test, so that the cooling system can meet the noise requirements of relevant standards.

Description

Technical Field

[0001] The present application relates to the field of energy storage technology, and in particular to a cooling system, an energy storage device and an energy storage system. Background Art

[0002] With the rapid development of science and technology, electric energy has become an indispensable energy source in people's production and life. In order to improve the smoothness of electric energy supply and realize the normal operation of production and life, energy storage devices are needed. As a device for cyclically storing and releasing electric energy, the energy storage device can store electric energy in the energy storage device by charging or discharging the energy storage device, or supply the electric energy stored in the energy storage device to the power-consuming device. Energy storage devices are widely used in industrial power supply, household power supply, temporary power supply, mobile power supply, wind power generation, solar power generation, energy storage power stations and other fields.

[0003] The cooling system is an essential component of the energy storage device. In the related technology, the cooling system generates relatively large noise during operation. Utility Model Content

[0004] The present application provides a cooling system, an energy storage device and an energy storage system, which can reduce the noise of the cooling system.

[0005] In a first aspect, a cooling system provided according to an embodiment of the present application includes a condenser, a radiator and a fan; the condenser takes in and out air along a first direction; the radiator is arranged on one side of the condenser along the first direction; at least one fan is arranged between the radiator and the condenser, and the fan is configured to be able to draw and blow air along the first direction.

[0006] The cooling system provided in the embodiment of the present application, by arranging at least one fan between the radiator and the condenser, is conducive to reducing the rotation speed of the fan while meeting the heat dissipation requirements of the condenser and the radiator, thereby reducing the noise generated by the fan and the cooling system. In addition, arranging the fan between the radiator and the condenser is equivalent to adjusting the noise source toward the inside of the cooling system, which is conducive to reducing the measured noise during the noise test of the cooling system, so that the cooling system can meet the noise requirements of relevant standards.

[0007] In some embodiments, the minimum distance between the fan and the condenser is d1, the minimum distance between the fan and the radiator is d2, and |d1-d2|≤200mm. In this way, the fan can reduce the speed of the fan to a greater extent while meeting the heat dissipation requirements of the condenser and the radiator, which is further conducive to reducing the noise generated by the fan.

[0008] In some embodiments, the radiator is disposed on a side of the condenser facing the air inlet side along the first direction, and the fan is configured to draw air from the radiator and blow air to the condenser; the cooling system further comprises a chassis, and the condenser, the radiator and the fan are contained in the chassis, and the condenser is disposed outside the chassis relative to the radiator. In this way, the dust on the condenser can be cleaned more conveniently and quickly from the outside of the chassis.

[0009] In some embodiments, the cooling system includes a first cooling pipeline and a second cooling pipeline, the first cooling pipeline and the second cooling pipeline are connected in parallel, the condenser is connected in series to the first cooling pipeline, and the radiator is connected in series to the second cooling pipeline. The condenser and the radiator are respectively placed in the first cooling pipeline and the second cooling pipeline connected in parallel, and the condenser and the radiator can be flexibly set to work or not work according to the ambient temperature of the energy storage device, so as to reduce the energy consumption of the cooling system under the premise of meeting the refrigeration requirements of the energy storage device.

[0010] In some embodiments, the cooling system further comprises a valve element, which is connected in series to the second cooling pipeline, and the valve element is configured to control the flow or cutoff of the fluid in the second cooling pipeline. By setting the valve element in series to the second cooling system, it is convenient to control the flow of the fluid to or not to flow to the second cooling pipeline and the radiator through the valve element, so as to more conveniently and quickly control the operation or non-operation of the second cooling pipeline and the radiator.

[0011] In some embodiments, the cooling system further includes a sound insulation member, which is arranged on the condenser, so as to further reduce the noise of the cooling system.

[0012] In some embodiments, the condenser has a flow area and a non-flow area, the condenser discharges air in a first direction through the flow area, and the sound insulation is arranged in the non-flow area of ​​the condenser. By arranging the sound insulation in the non-flow area of ​​the condenser, it is beneficial to reduce the risk of the sound insulation blocking the normal ventilation of the condensed air on the basis of reducing the noise of the cooling system through the sound insulation.

[0013] In some embodiments, a plurality of fans are arranged between the condenser and the radiator, and the plurality of fans are arranged along a first direction, and / or the plurality of fans are arranged along a second direction, and the second direction intersects the first direction. Such an arrangement is conducive to increasing the air volume of the fans, improving the heat dissipation effect of the fans on the condenser and the radiator, and thus helping to improve the cooling effect of the cooling system.

[0014] In a second aspect, the energy storage device provided in accordance with the present application includes a battery, a fluid pipeline, and a cooling system provided in any of the above embodiments, wherein the battery is used to provide electrical energy; the fluid pipeline is used to flow through the fluid and perform heat exchange with the battery; and the condenser and the radiator are respectively connected to the fluid pipeline.

[0015] The energy storage device provided in the embodiment of the present application has the same technical effect as the cooling system provided in any of the above embodiments, and will not be described in detail here.

[0016] In a third aspect, an energy storage system provided according to an embodiment of the present application includes the energy storage device provided in the above embodiment.

[0017] The energy storage system provided in the embodiment of the present application has the same technical effect as the energy storage device provided in any of the above embodiments, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of a battery cell in an energy storage device provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the structure of the energy storage device provided in the embodiment of the present application;

[0021] Figure 3 A schematic diagram of the structure of a cooling system provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the structure of the energy storage device provided in the embodiment of the present application;

[0023] Figure 5 A schematic diagram of the structure of part of the cooling system provided in an embodiment of the present application.

[0024] In the drawings, the drawings are not drawn to scale.

[0025] Description of reference numerals:

[0026] 1. Energy storage device;

[0027] 10. Cooling system; 11. Condenser; 11a. Flow area; 11b. Non-flow area; 12. Fan; 13. Sound insulation; 14. Evaporator; 15. Compressor; 16. Chassis; 17. Radiator; 181. First cooling pipeline; 182. Second cooling pipeline; 19. Valve element;

[0028] 30. Battery cell; 31. Housing; 31a. Accommodation cavity; 32. Electrode assembly;

[0029] 41. Battery; 42. Fluid pipeline; 43. Box;

[0030] X, first direction. DETAILED DESCRIPTION

[0031] The following detailed description and drawings of the embodiments of the present application are used to illustrate the principles of the present application, but cannot be used to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

[0032] In the description of the present application, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inside", "outside", etc., indicating the orientation or positional relationship, 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 cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but is within the allowable error range. "Parallel" is not strictly parallel, but is within the allowable error range.

[0033] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0034] In the description of this application, it should also 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0035] The term "plurality" used in the present application refers to two or more (including two).

[0036] In the present application, the battery cell may include a lithium-ion secondary battery cell, a lithium-ion primary battery cell, a lithium-sulfur battery cell, a sodium-lithium-ion battery cell, a sodium-ion battery cell or a magnesium-ion battery cell, etc., and the embodiments of the present application do not limit this. The battery cell may be cylindrical, flat, rectangular or other shapes, etc., and the embodiments of the present application do not limit this.

[0037] The battery mentioned in the embodiments of the present application may include one or more battery cells to provide a single physical module with higher voltage and capacity. When there are multiple battery cells, the multiple battery cells are connected in series, in parallel or in mixed connection through a busbar component.

[0038] In some embodiments, the battery may be a battery module; when there are multiple battery cells, the multiple battery cells are arranged and fixed to form a battery module.

[0039] In some embodiments, the battery may be a battery pack, which includes a receiving chamber and a battery cell, wherein the battery cell or the battery module is received in the receiving box.

[0040] In some embodiments, the energy storage device includes an energy storage container, an energy storage cabinet, etc.

[0041] A battery cell generally includes an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator. During the charge and discharge process of a battery cell, active ions (such as lithium ions) are embedded and removed between the positive electrode and the negative electrode. The separator is set between the positive electrode and the negative electrode to prevent the positive and negative electrodes from short-circuiting, while allowing active ions to pass through.

[0042] Optionally, the electrode assembly is a winding structure, wherein the positive electrode sheet and the negative electrode sheet are wound into a winding structure.

[0043] Optionally, the electrode assembly is a laminate structure.

[0044] Optionally, the shape of the electrode assembly can be cylindrical, flat, or polygonal.

[0045] The energy storage device usually includes a cooling system, which can cool down the battery and the like during the operation of the energy storage device to achieve normal operation of the energy storage device. The cooling system may include a condenser and a radiator, which can work or not work independently, that is, one of the condenser and the radiator works, or both work at the same time, or neither works. During the operation of the condenser or radiator, a fan is required to strengthen the airflow around the condenser or radiator to cool the condenser or radiator more quickly.

[0046] However, in the related art, the condenser is usually arranged on the air inlet side of the radiator, and a plurality of fans arranged in the same vertical plane are arranged on the air outlet side of the condenser to meet the heat dissipation requirements of the condenser and the radiator. Since the fan is far away from the radiator, in order to meet the heat dissipation requirements of the radiator, the fan is usually required to have a higher speed, so that the cooling system generates a large noise during operation.

[0047] In view of this, the embodiment of the present application proposes a new technical solution to reduce the noise of the cooling system. The technical solution described in the embodiment of the present application is applicable to a cooling system, an energy storage device using the cooling system, and an energy storage system including the energy storage device.

[0048] The energy storage device can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems or temporary power supply systems. The energy storage power station can store electric energy during low electricity consumption, and provide electric energy to relevant users or electrical equipment during peak electricity consumption. The wind energy collected by the wind turbine of the wind power generation system is converted into electric energy and stored by the energy storage device. The solar power generation system can convert solar energy into electric energy, store it by the energy storage device, and supply it to users in a timely manner. The mobile power system can supply power to relevant electrical equipment in places that the power grid power supply system cannot reach, such as remote mountainous areas, remote wilderness and other areas. The temporary power supply system can supply power to users when the power supply is insufficient. The energy storage system provided in the embodiment of the present application can be any power system that requires an energy storage device.

[0049] like Figure 1 As shown, the battery cell 30 described in the embodiment of the present application includes an electrode assembly 32 and a housing 31 . The housing 31 has a receiving cavity 31 a , and the electrode assembly 32 is received in the receiving cavity 31 a .

[0050] The outer shell 31 includes a shell 311 and an end cover 312 . When assembling the battery cell 30 , the electrode assembly 32 can be placed in the accommodating cavity 31 a first, and then the end cover 312 is covered on the shell 311 , and then the electrolyte is injected into the accommodating cavity 31 a through the electrolyte injection port on the end cover 312 .

[0051] Optionally, the housing 31 can also be used to contain electrolytes, such as electrolytes. The housing 31 can be in various structural forms.

[0052] The outer shell 31 can be in various shapes, such as a cylinder, a cuboid, etc. The shape of the outer shell 31 can be determined according to the specific shape of the electrode assembly 32. For example, if the electrode assembly 32 is a cylindrical structure, the outer shell 31 can be a cylindrical structure. If the electrode assembly 32 is a cuboid structure, the outer shell 31 can be a cuboid structure. Figure 2 In the figure, illustratively, the housing 31 and the electrode assembly 32 are both rectangular parallelepiped structures.

[0053] The shell 31 can be made of a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, etc., and the embodiment of the present application does not impose any special restrictions on this.

[0054] There may be one or more electrode assemblies 32 contained in the housing 31. Figure 1 In the embodiment, there are two electrode assemblies 32 housed in the housing 31.

[0055] First, as Figures 2 to 4 As shown, the cooling system 10 provided in the embodiment of the present application includes a condenser 11, a radiator 17 and a fan 12. The condenser 11 takes in and out air along a first direction X, and the radiator 17 is arranged on one side of the condenser 11 along the first direction X. At least one fan 12 is arranged between the radiator 17 and the condenser 11, and the fan 12 is configured to be able to draw air and blow air along the first direction X.

[0056] It should be noted that the cooling system 10 provided in the embodiment of the present application can be any device that needs to be cooled, including but not limited to an air conditioning system, an electrical device, an energy storage device 1, etc. The following description will be made by taking the cooling system 10 applied to the energy storage device 1 as an example.

[0057] The energy storage device 1 generally includes a battery 41, a fluid pipeline 42 and a cooling system 10. The battery 41 can store or release electrical energy. The cooling system 10 can also include an evaporator 14 and a compressor 15. The fluid pipeline 42 can be offset from the battery 41 so that the refrigerant flowing in the fluid pipeline 42 can exchange heat with the battery 41 and take away the heat of the battery 41. The high-temperature refrigerant after the heat exchange with the battery 41 can flow to the evaporator 14.

[0058] The condenser 11 and the radiator 17 can be connected in series or in parallel. In the embodiment where the condenser 11 and the radiator 17 are connected in series, the refrigerant after heat exchange with the battery 41 can flow from the evaporator 14 to the radiator 17 and the condenser 11 in sequence. The radiator 17 first cools the refrigerant before flowing to the condenser 11. The condenser 11 can cool the refrigerant again and dissipate the heat into the surrounding air. In this way, the temperature of the refrigerant is further reduced after flowing through the condenser 11, and is converted into low-temperature steam after returning to the evaporator 14, and then enters the fluid pipeline 42 for the next round of circulation.

[0059] In the embodiment where the refrigerant and the radiator 17 are connected in parallel, the radiator 17 and the condenser 11 can work or not work independently. For example, when the ambient temperature is low, only the cooling circuit where the radiator 17 is located can be set to work, while the cooling circuit where the condenser 11 is located can be set to not work. When the ambient temperature is medium, only the cooling circuit where the condenser 11 is located can be set to work, while the cooling circuit where the radiator 17 is located can be set to not work. When the ambient temperature is high, the cooling requirement required by the energy storage device 1 becomes higher, and the confluence where the condenser 11 and the radiator 17 are located can be set to work together.

[0060] In the embodiment where the refrigerant and the radiator 17 are connected in parallel, the refrigerant flowing through the radiator 17 and the evaporator may be the same or different. For example, the refrigerant flowing to the radiator 17 may be liquid, and the refrigerant flowing to the condenser may be steam. The refrigerant after heat exchange with the battery 41 is divided into two paths, flowing to the radiator 17 and the condenser 11 respectively, and after being cooled by the radiator 17 and the condenser 11, it flows into the fluid pipeline 42 again for the next round of circulation.

[0061] The cooling system 10 may include a water cooling unit independently arranged relative to the battery 41 . The refrigerant may be water or the like. The water cooling unit includes a chassis 16 . The condenser 11 , the fan 12 and related pipelines are integrated in the chassis 16 .

[0062] The rotation of the fan 12 can speed up the circulation of air, which is beneficial to improving the heat dissipation efficiency of the condenser 11 and the radiator 17. The fan 12 needs a sufficient amount of air to meet the heat dissipation requirements of the radiator 17 or the condenser 11, and the greater the flow rate of the fan 12 and the closer the distance between the fan 12 and the condenser 11 or the radiator 17, the more conducive it is to meet the heat dissipation requirements of the condenser 11 or the radiator 17.

[0063] At least one fan 12 is disposed between the condenser 11 and the radiator 17. Optionally, one or more fans 12 may be disposed between the condenser 11 and the radiator 17. The multiple fans 12 may be arranged along the first direction X, or the multiple fans 12 may be arranged along a direction intersecting the first direction X. The fan 12 may be an axial flow fan 12, or the fan 12 may be a cross-flow fan 12.

[0064] The condenser 11 takes in air and discharges air along the first direction X, and the radiator 17 may also take in air and discharge air along the first direction X. The radiator 17 may be disposed on a side of the condenser 11 located on the air discharge side of the condenser 11 along the first direction X, or the radiator 17 may be disposed on a side of the condenser 11 located on the air intake side of the condenser 11 along the first direction X. Therefore, the fan 12 may be configured to blow air to the condenser 11 and exhaust air to the radiator 17, or the fan 12 may be configured to blow air to the radiator 17 and exhaust air to the condenser 11, both of which may achieve the purpose of increasing the air flow speed around the condenser 11 and the radiator 17.

[0065] The fan 12 is arranged between the radiator 17 and the condenser 11, and the fan 12 can cool down both the radiator 17 and the condenser 11. Compared with the case where the fan 12 is located on the side of the condenser 11 facing away from the radiator 17, the fan 12 is arranged between the radiator 17 and the condenser 11, which makes it easier to reasonably configure the distance between the fan 12 and the radiator 17 and the condenser 11, so that the fan 12 can meet the heat dissipation requirements of the radiator 17 and the condenser 11 at a lower rotation speed. This is beneficial to reducing the rotation speed and noise of the fan 12, and further beneficial to reducing the noise of the cooling system 10.

[0066] Furthermore, if the fan 12 is arranged between the radiator 17 and the condenser 11, the radiator 17 or the condenser 11 can play a certain shielding role for the noise generated by the fan 12. According to the provisions of "Appendix C of JB / T4330-1999: Measurement of Noise Sound Pressure Level of Refrigeration and Air Conditioning Equipment", when conducting noise testing, the noise test point is usually set 1 meter outside the geometric center of the cooling system 10, and when the height of the cooling system 10 is greater than 1 meter, the height of the noise test point is 1.5 meters, and when the height of the cooling system 10 is less than 1 meter, the height of the noise test point is 1 meter. Therefore, arranging the fan 12 between the condenser 11 and the radiator 17 is equivalent to adjusting the noise source to the inside of the cooling system 10, which is conducive to reducing the size of the measured noise, and further conducive to reducing the size of the noise measured at the noise test point, so that the noise generated by the cooling system 10 meets the requirements of relevant standards.

[0067] Therefore, the cooling system 10 provided in the embodiment of the present application, by arranging at least one fan 12 between the radiator 17 and the condenser 11, is conducive to reducing the rotation speed of the fan 12 while meeting the heat dissipation requirements of the condenser 11 and the radiator 17, thereby reducing the noise generated by the fan 12 and the cooling system 10. In addition, arranging the fan 12 between the radiator 17 and the condenser 11 is equivalent to adjusting the noise source toward the inside of the cooling system 10, which is conducive to reducing the measured noise during the noise test of the cooling system 10, so that the cooling system 10 can meet the noise requirements of the relevant standards.

[0068] In some embodiments, the minimum distance between the fan 12 and the condenser 11 is d1, the minimum distance between the fan 12 and the radiator 17 is d2, and |d1-d2|≤200 mm.

[0069] Optionally, |d1-d2| can be 0, 10mm, 20mm, 30mm, 40mm, 50mm, 80mm, 100mm, 120mm, 150mm, 160mm, 180mm, or 200mm, etc.

[0070] It is understandable that the smaller the distance between the fan 12 and the condenser 11 or the radiator 17, the more conducive it is to meeting the heat dissipation requirements of the condenser 11 or the radiator 17. The distances between the fan 12 and the condenser 11 and the radiator 17 can be reasonably set according to the heat dissipation requirements of the condenser 11 and the radiator 17, so that the fan 12 can meet the heat dissipation requirements of the radiator 17 and the condenser 11 at the lowest speed.

[0071] After systematic analysis and long-term practice, the inventors found that setting |d1-d2|≤200mm can help the fan 12 to reduce its rotation speed to a greater extent while meeting the heat dissipation requirements of the condenser 11 and the radiator 17, which is further beneficial to reducing the noise generated by the fan 12.

[0072] like Figure 3 As shown, in some embodiments, the radiator 17 is disposed on a side of the condenser 11 facing the air inlet side along the first direction X, and the fan 12 is configured to draw air from the radiator 17 and blow air to the condenser 11. The cooling system 10 further includes a chassis 16, and the condenser 11, the radiator 17, and the fan 12 are accommodated in the chassis 16, and the condenser 11 is disposed outside the chassis 16 relative to the radiator 17 and close to the chassis 16.

[0073] During operation, the fan 12 will extract sand and dust in the air and attach it to the condenser 11 or the radiator 17. By setting the fan 12 to extract air from the radiator 17 and to blow air to the condenser 11, more sand and dust extracted by the fan 12 will attach to the condenser 11. Since the condenser 11 is arranged closer to the outside of the chassis 16 than the radiator 17, the sand and dust on the condenser 11 can be cleaned more conveniently and quickly from the outside of the chassis 16.

[0074] like Figure 4 As shown, in some embodiments, the cooling system 10 includes a first cooling pipeline 181 and a second cooling pipeline 182, the first cooling pipeline 181 and the second cooling pipeline 182 are connected in parallel to each other, the condenser 11 is connected in series to the first cooling pipeline 181, and the radiator 17 is connected in series to the second cooling pipeline 182.

[0075] In this way, the condenser 11 and the radiator 17 are respectively in two cooling circuits connected in parallel with each other, and the two can work or not work independently.

[0076] Optionally, the refrigerants flowing in the first cooling line 181 and the second cooling line 182 may be the same or different, and can be set according to actual needs. For example, the first cooling line 181 can be used to flow steam refrigerant, and the second cooling line 182 can be used to flow liquid refrigerant. In this way, when the ambient temperature is high, the heat dissipation demand of the energy storage device 1 is high, and the first cold zone pipeline and the second cooling line 182 can be set to flow refrigerant at the same time, and the radiator 17 and the condenser 11 can work at the same time to meet the heat dissipation demand of the energy storage device 1. In the case of low ambient temperature, the first cooling line 181 and the condenser 11 can be set not to work, while the second cooling line 182 and the radiator 17 can be set to work, so as to reduce the energy consumption of the cooling system 10 while meeting the heat dissipation demand of the energy storage device 1. When the ambient temperature is between low temperature and high temperature, the first cooling pipeline 181 and the condenser 11 can be set to work, while the second cooling pipeline 182 and the radiator 17 are not set to work. In this way, the refrigeration demand of the cooling system 10 can be met and the energy consumption of the cooling system 10 can be reduced.

[0077] Therefore, the condenser 11 and the radiator 17 are respectively placed in the first cooling pipeline 181 and the second cooling pipeline 182 which are connected in parallel. The condenser 11 and the radiator 17 can be flexibly set to work or not work according to the ambient temperature of the energy storage device 1, so as to reduce the energy consumption of the cooling system 10 while meeting the cooling requirements of the energy storage device 1.

[0078] like Figure 4 As shown, in some embodiments, the cooling system 10 further includes a valve element 19 , which is connected in series to the second cooling line 182 , and the valve element 19 is configured to control the flow or shutoff of the fluid in the second cooling line 182 .

[0079] Optionally, the valve element 19 may be a two-way valve and connected in series in the second cooling line 182. The valve element 19 may be opened or closed to control whether the fluid can flow to the second cooling line 182 or not.

[0080] The valve element 19 can be arranged on the side of the radiator 17 facing the fluid inlet, or the valve element 19 can be arranged on the side of the radiator 17 facing the fluid outlet. The valve element 19 can be a solenoid valve, and the opening or closing of the valve element 19 is controlled by the relevant control element in the energy storage device 1. Of course, the valve element 19 can also be manually controlled, and the opening or closing of the valve element 19 is manually controlled.

[0081] By setting the valve element 19 in series in the second cooling system 10, it is convenient to control the flow of fluid to the second cooling pipeline 182 and the radiator 17 or not through the valve element 19, so as to control the operation or non-operation of the second cooling pipeline 182 and the radiator 17 more conveniently and quickly.

[0082] like Figure 5 As shown, in some embodiments, the cooling system 10 further includes a sound insulating member 13 , and the sound insulating member 13 is disposed on the condenser 11 .

[0083] The sound insulation member 13 may be a sound insulation cotton or a sound insulation cover, and the sound insulation member 13 is provided on the condenser 11. Optionally, according to the specific structural type of the sound insulation member 13, the sound insulation member 13 may be provided on the outside of the condenser 11, or the insulation member may be attached to the surface or inside of the condenser 11. By providing the sound insulation member 13, the noise of the cooling system 10 is further reduced.

[0084] like Figure 5 As shown, in some embodiments, the condenser 11 has a flow area 11 a and a non-flow area 11 b , the condenser 11 discharges air along a first direction X via the flow area 11 a , and the sound insulation member 13 is disposed in the non-flow area 11 b of the condenser 11 .

[0085] The condenser 11 has a flow area 11a and a non-flow area 11b, and the non-flow area 11b and the flow area 11a do not overlap with each other. Since the condenser 11 is ventilated along the first direction X via the flow area 11a, by arranging the sound insulation member 13 in the non-flow area 11b of the condenser 11, it is beneficial to reduce the risk of the sound insulation member 13 blocking the normal ventilation of the condensing gas on the basis of reducing the noise of the cooling system 10 through the sound insulation member 13.

[0086] In some embodiments, a plurality of fans 12 are disposed between the condenser 11 and the radiator 17 , and the plurality of fans 12 are arranged along a first direction X, and / or the plurality of fans 12 are arranged along a second direction intersecting with the first direction X.

[0087] In this way, the fan 12 between the condenser 11 and the radiator 17 can be arranged only along the first direction X, or multiple fans 12 can be arranged only along the second direction. Of course, multiple fans 12 can also be arranged both along the first direction X and along the second direction.

[0088] Arranging a plurality of fans 12 along the first direction X or the second direction is beneficial to increasing the air volume of the fans 12 and improving the heat dissipation effect of the fans 12 on the condenser 11 and the radiator 17 , thereby improving the cooling effect of the cooling system 10 .

[0089] like Figure 2 and 4As shown, in the second aspect, the energy storage device 1 provided in an embodiment of the present application includes a battery 41, a fluid pipeline 42 and a cooling system 10 provided in any of the above embodiments, the battery 41 is used to provide electrical energy, the fluid pipeline 42 is used to flow through the fluid and exchange heat with the battery 41, and the condenser 11 and the radiator 17 are respectively connected to the fluid pipeline 42.

[0090] The energy storage device 1 may include a box 43 for accommodating a battery 41 and a fluid pipeline 42. The cooling system 10 may be integrated together with the battery 41 in the box 43, or the cooling system 10 may be separately provided with a chassis 16, the chassis 16 is located outside the box 43, the condenser 11, the radiator 17 and the fan 12 are integrated in the chassis 16, and the pipelines in the chassis 16 are connected to the fluid pipeline 42 through pipelines.

[0091] The energy storage device 1 provided in the embodiment of the present application has the same technical effect as the cooling system 10 provided in any of the above embodiments, and thus will not be described in detail here.

[0092] In a third aspect, the energy storage system provided in the embodiment of the present application includes the energy storage device 1 provided in the above embodiment.

[0093] The energy storage system provided in the embodiment of the present application has the same technical effect as the energy storage device 1 provided in any of the above embodiments, and thus will not be described in detail here.

[0094] like Figures 2 to 5As shown, in some embodiments, the cooling system 10 provided in the embodiment of the present application includes a chassis 16, a condenser 11, a radiator 17, a fan 12, a first cooling pipeline 181, a second cooling pipeline 182, a valve element 19 and a sound insulation member 13. The condenser 11, the radiator 17 and the fan 12 are accommodated in the chassis 16, and the condenser 11 is arranged outside the chassis 16 relative to the radiator 17. The condenser 11 takes in and out air along the first direction X, and the radiator 17 is arranged on a side of the condenser 11 close to the air inlet side along the first direction X. At least one fan 12 is arranged between the radiator 17 and the condenser 11, and the fan 12 is configured to be able to exhaust air from the radiator 17 and blow air to the condenser 11 along the first direction X. The minimum distance between the fan 12 and the condenser 11 is d1, and the minimum distance between the fan 12 and the radiator 17 is d2, and |d1-d2|≤200mm. The first cooling pipeline 181 and the second cooling pipeline 182 are connected in parallel, the condenser 11 is connected in series to the first cooling pipeline 181, and the radiator 17 is connected in series to the second cooling pipeline 182. The valve element 19 is connected in series to the second cooling pipeline 182, and the valve element 19 is configured to control the flow or cutoff of the fluid in the second cooling pipeline 182. The condenser 11 has a flow area 11a and a non-flow area 11b. The condenser 11 discharges air along the first direction X through the flow area 11a, and the sound insulation member 13 is provided in the non-flow area 11b of the condenser 11.

[0095] The cooling system 10 provided in the embodiment of the present application, by arranging at least one fan 12 between the radiator 17 and the condenser 11, is conducive to reducing the rotation speed of the fan 12 while meeting the heat dissipation requirements of the condenser 11 and the radiator 17, thereby reducing the noise generated by the fan 12 and the cooling system 10. In addition, arranging the fan 12 between the radiator 17 and the condenser 11 is equivalent to adjusting the noise source toward the inside of the cooling system 10, which is conducive to reducing the measured noise during the noise test of the cooling system 10, so that the cooling system 10 can meet the noise requirements of the relevant standards.

[0096] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A cooling system, characterized in that: include: A condenser, wherein the condenser takes in air and discharges air in a first direction; A radiator, disposed on one side of the condenser along the first direction; A fan, at least one of which is disposed between the radiator and the condenser, and the fan is configured to be able to draw air and blow air along the first direction.

2. The cooling system according to claim 1, characterized in that: The minimum distance between the fan and the condenser is d1, the minimum distance between the fan and the radiator is d2, and |d1-d2|≤200mm.

3. The cooling system according to claim 1 or 2, characterized in that: The radiator is arranged on a side of the condenser facing the air inlet side along the first direction, and the fan is configured to draw air from the radiator and blow air to the condenser; the cooling system also includes a chassis, and the condenser, the radiator and the fan are accommodated in the chassis, and the condenser is arranged close to the outside of the chassis relative to the radiator.

4. The cooling system according to claim 1, characterized in that: The cooling system includes a first cooling pipeline and a second cooling pipeline, the first cooling pipeline and the second cooling pipeline are connected in parallel to each other, the condenser is connected in series to the first cooling pipeline, and the radiator is connected in series to the second cooling pipeline.

5. The cooling system according to claim 4, characterized in that: The second cooling line also includes a valve element, which is connected in series to the second cooling line and is configured to control the flow or cutoff of fluid in the second cooling line.

6. The cooling system according to claim 1, characterized in that: The cooling system further comprises a sound insulating member, and the sound insulating member is arranged on the condenser.

7. The cooling system according to claim 6, characterized in that: The condenser has a flow area and a non-flow area. The condenser discharges air along the first direction via the flow area. The sound insulation member is arranged in the non-flow area of ​​the condenser.

8. The cooling system according to claim 1, characterized in that: A plurality of the fans are arranged between the condenser and the radiator, and the plurality of the fans are arranged along the first direction, and / or the plurality of the fans are arranged along a second direction, and the second direction intersects with the first direction.

9. An energy storage device, characterized in that: include: A battery, the battery being used to provide electrical energy; a fluid pipeline, the fluid pipeline being used for fluid to flow through and to perform heat exchange with the battery; According to the cooling system according to any one of claims 1 to 8, the condenser and the radiator are respectively connected to the fluid pipeline.

10. An energy storage system, characterized in that: Comprising the energy storage device as claimed in claim 9.

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