Cooling system, energy storage device and energy storage system

Abstract

The utility model provides a cooling system, an energy storage device and an energy storage system. The cooling system comprises a condenser and a plurality of draught fans, and air enters and exits from the condenser in the first direction; the at least two fans are arranged in the first direction, each fan is provided with a through-flow face, the through-flow faces extend in the second direction and the third direction, every two of the first direction, the second direction and the third direction intersect, air enters and exits from the fans in the first direction through the through-flow faces, and the size of the through-flow faces in the second direction is larger than the size of the through-flow faces in the third direction. According to the cooling system provided by the invention, the area of the through-flow surface of a single fan can be increased, the rotating speed of the fan can be reduced, and the noise generated by the fan can be reduced. And the plurality of fans are arranged along the first direction, so that the measured noise can be reduced, and the noise generated by the cooling system can meet the requirements of related 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 and a plurality of fans, the condenser taking in air and discharging air along a first direction; at least two fans are arranged along the first direction, the fans having flow surfaces, the flow surfaces extending along a second direction and a third direction, the first direction, the second direction and the third direction intersect with each other, the fans taking in air and discharging air along the first direction via the flow surfaces, and the size of the flow surfaces along the second direction is larger than the size along the third direction.

[0006] The cooling system provided in the embodiment of the present application, by arranging multiple fans along the first direction, is conducive to increasing the area of ​​the flow surface of a single fan and reducing the speed of the fan, thereby reducing the noise generated by the fan, while meeting the ventilation requirements of the condenser. Since multiple fans are arranged along the first direction, it is conducive to reducing the size of the measured noise, which is further conducive to the noise generated by the cooling system meeting the requirements of relevant standards.

[0007] In some embodiments, at least some of the multiple fans are disposed on one side of the condenser along the first direction, and at least another part is disposed on the other side of the condenser along the first direction. During the noise test on the air outlet side of the condenser, the condenser can shield the noise of some fans, which is beneficial to reducing the size of the measured noise, and further helps the cooling system meet the noise requirements of relevant standards.

[0008] In some embodiments, multiple fans are arranged on one side of the condenser close to the air inlet side along the first direction. In this way, during the noise test on the air outlet side of the condenser, the condenser can shield the noise of all fans, which is conducive to reducing the size of the measured noise, and further helps the cooling system meet the relevant noise requirements.

[0009] In some embodiments, the cooling system further includes a sound insulation member, which is disposed on the condenser. The sound insulation member is provided to further reduce the noise of the cooling system.

[0010] 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 member is disposed in the non-flow area of ​​the condenser. In this way, on the basis of reducing the noise of the cooling system through the sound insulation member, the risk of the sound insulation member blocking the normal ventilation of the condensed air is reduced.

[0011] In some embodiments, the fan is a cross-flow fan. The cross-flow fan can set the appropriate size of the flow surface as needed, so as to achieve the purpose of making the size of the flow surface of the fan along the second direction larger than the size along the third direction, and the specific size of the flow surface along the second direction and the third direction can be customized as needed, so that the area of ​​the flow surface of the fan has stronger adaptability. In addition, the airflow of the cross-flow fan is more uniform, which is conducive to improving the cooling effect on the condenser.

[0012] In some embodiments, the second direction is arranged along the gravity direction, and the third direction is arranged along the horizontal direction. Such an arrangement is suitable for a "thin and tall" arrangement space of the fan, and is conducive to reducing the space occupied by the fan.

[0013] In some embodiments, at least two fans are arranged along the second direction, which is conducive to more flexible arrangement of the size and arrangement of the fans along the second direction according to needs, thereby improving the adaptability of the fans to the arrangement of the cooling system.

[0014] In some embodiments, one fan is provided on one side of the at least two fans arranged along the second direction close to the air outlet side along the first direction. In this way, there is always one and only one fan at the outermost side of the air outlet direction toward the condenser along the first direction, which is conducive to reducing the noise level measured at the noise test point and making it easier for the noise of the cooling system to meet the relevant standard requirements.

[0015] In a second aspect, the energy storage device provided according to the present application includes a battery, a fluid pipeline and a cooling system provided by 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 is connected to the fluid pipeline.

[0016] 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.

[0017] 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.

[0018] 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

[0019] 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.

[0020] 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;

[0021] Figure 2 A schematic diagram of the structure of the energy storage device provided in the embodiment of the present application;

[0022] Figure 3 A schematic diagram of the structure of a cooling system provided in an embodiment of the present application;

[0023] Figure 4 A schematic diagram of the structure of the energy storage device provided in the embodiment of the present application;

[0024] Figure 5 A schematic diagram of the structure of a fan of a cooling system provided in an embodiment of the present application;

[0025] Figure 6 A schematic diagram of the structure of another cooling system provided in an embodiment of the present application;

[0026] Figure 7 A schematic diagram of the structure of another cooling system provided in an embodiment of the present application;

[0027] Figure 8 A schematic diagram of a portion of the structure of a cooling system provided in an embodiment of the present application;

[0028] In the drawings, the drawings are not drawn to scale.

[0029] Description of reference numerals:

[0030] 1. Energy storage device;

[0031] 10. Cooling system; 11. Condenser; 11a. Flow area; 11b. Non-flow area; 12. Fan; 12a. Flow surface; 13. Sound insulation; 14. Evaporator; 15. Compressor; 16. Chassis;

[0032] 30. Battery cell; 31. Housing; 31a. Accommodation cavity; 32. Electrode assembly;

[0033] 41. Battery; 42. Fluid pipeline; 43. Box;

[0034] X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] The term "plurality" used in the present application refers to two or more (including two).

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] In some embodiments, the energy storage device includes an energy storage container, an energy storage cabinet, etc.

[0045] 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.

[0046] Optionally, the electrode assembly is a winding structure, wherein the positive electrode sheet and the negative electrode sheet are wound into a winding structure.

[0047] Optionally, the electrode assembly is a laminate structure.

[0048] Optionally, the shape of the electrode assembly can be cylindrical, flat, or polygonal.

[0049] The energy storage device usually includes a cooling system to cool the energy storage device during its operation so that the energy storage device can operate normally. In the related art, a plurality of fans are usually arranged in the cooling system to dissipate heat from the condenser. However, due to the limitation that the arrangement space of the fans is mostly "slender", a plurality of fans are usually arranged along the air outlet direction perpendicular to the condenser. In this way, the flow area of ​​each fan is small. In order to increase the air volume of the fan and make the fan have a higher speed, a plurality of fans working together will generate a large noise.

[0050] In view of this, the embodiment of the present application proposes a new technical solution to reduce the noise of the fan. The technical solution described in the embodiment of the present application is applicable to a cooling system, an energy storage device using a cooling system, and an energy storage system including an energy storage device.

[0051] 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.

[0052] 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 .

[0053] 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 .

[0054] Optionally, the housing 31 can also be used to contain electrolytes, such as electrolytes. The housing 31 can be in various structural forms.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] First, as Figures 2 to 5 As shown, the cooling system 10 provided in the embodiment of the present application includes a condenser 11 and a plurality of fans 12. The condenser 11 takes in air and discharges air along a first direction X. At least two fans 12 are arranged along the first direction X. The fans 12 have flow surfaces 12a. The flow surfaces 12a extend along a second direction Y and a third direction Z. The first direction X, the second direction Y, and the third direction Z intersect in pairs. The fans 12 take in air and discharge air along the first direction X via the flow surfaces 12a. The size of the flow surfaces 12a along the second direction Y is greater than the size along the third direction Z.

[0059] 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.

[0060] 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 offset the battery 41 to exchange heat with the battery 41 through the refrigerant flowing in the fluid pipeline 42, and take away the heat of the battery 41. The high-temperature refrigerant after heat exchange with the battery 41 can flow to the evaporator 14 and form high-temperature steam in the evaporator 14. The high-temperature steam can flow to the compressor 15 and become high-temperature and high-pressure steam, and then enter the condenser 11. The condenser 11 can cool the high-temperature and high-pressure steam into a low-temperature and low-pressure liquid and dissipate the heat to the surrounding air. In this way, the high-temperature refrigerant is cooled 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.

[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. The fan 12 needs enough air volume to meet the heat dissipation demand of the condenser 11, and the larger the area of ​​the flow surface 12a of the fan 12, the more conducive it is to improve the air volume of the fan 12.

[0063] The condenser 11 takes in air and discharges air along the first direction X, so the fan 12 also needs to take in air and discharge air along the first direction X. The flow surface 12a of the fan 12 extends along the second direction Y and the third direction Z. The first direction X, the second direction Y and the third direction Z intersect each other. For example, the second direction Y, the first direction X and the third direction Z are perpendicular to each other.

[0064] Exemplarily, the first direction X can be parallel to the horizontal direction, and the flow surface 12a can be perpendicular to the horizontal direction. Since the size of the flow surface 12a along the second direction Y is greater than the size along the third direction Z, the second direction Y can be parallel to the gravity direction, and the third direction Z can be parallel to the horizontal direction, or the second direction Y can be parallel to the horizontal direction, and the third direction Z can be parallel to the vertical direction.

[0065] Therefore, for the "slender" arrangement space of the fan 12, the size of the flow surface 12a of the fan 12 along the second direction Y is set to be larger than the size along the third direction Z. The specific values ​​of the size of the flow surface 12a in the second direction Y and the size of the third direction Z of the fan 12 can be set according to the specific arrangement space allowed by the fan 12.

[0066] It can be understood that, compared with the arrangement mode in which multiple fans 12 are arranged in the same plane along one direction, the present application arranges multiple fans 12 along the first direction X, and the specific values ​​of the size of the flow surface 12a of a single fan 12 along the second direction Y and the third direction Z can be reasonably set as needed, and the second direction Y can be the arrangement direction of multiple fans 12 in the original design. In this way, the area of ​​the flow surface 12a of a single fan 12 can be increased. Since the air volume of the fan 12 is positively correlated with the wind speed and the area of ​​the flow surface 12a, under the same air volume requirement, the increase in the area of ​​the flow surface 12a of the fan 12 is conducive to reducing the wind speed of the single fan 12, and thus is conducive to reducing the noise of the fan 12.

[0067] According to the provisions of "Appendix C of JB / T 4330-1999: Measurement of Noise 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 multiple fans 12 along the first direction X is equivalent to extending the noise test point outward, which is conducive to reducing the size of the measured noise. Compared with the situation where multiple fans 12 are arranged in the same vertical plane, arranging multiple fans 12 along the first direction X is conducive to reducing the number of fans 12 in a single vertical plane, which is conducive to further reducing the size of the noise measured at the noise test point.

[0068] The type of the fan 12 is not limited, as long as the size of the flow surface 12a of the fan 12 along the second direction Y is greater than the size along the third direction Z. For example, the fan 12 may be a cross-flow fan.

[0069] If multiple fans 12 are arranged along the first direction X, then the multiple fans 12 can be arranged on the side of the condenser 11 close to the air outlet side along the first direction X, or, the multiple fans 12 can be arranged on the side of the condenser 11 close to the air inlet side along the first direction X. Of course, some of the multiple fans 12 can also be arranged on the side of the condenser 11 close to the air outlet side along the first direction X, and the other part can be arranged on the side of the condenser 11 close to the air inlet side along the first direction X.

[0070] The cooling system 10 provided in the embodiment of the present application, by arranging a plurality of fans 12 along the first direction X, is conducive to increasing the area of ​​the flow surface 12a of a single fan 12 and reducing the rotation speed of the fan 12 while meeting the ventilation requirements of the condenser 11, thereby facilitating the reduction of the noise generated by the fan 12. Furthermore, since the plurality of fans 12 are arranged along the first direction X, it is conducive to reducing the magnitude of the measured noise, which is further conducive to the noise generated by the cooling system 10 meeting the requirements of the relevant standards.

[0071] like Figure 6 As shown, in some embodiments, at least part of the plurality of fans 12 are disposed on one side of the condenser 11 along the first direction X, and at least another part is disposed on the other side of the condenser 11 along the first direction X.

[0072] In this way, some of the multiple fans 12 are located on the air inlet side of the condenser 11, and the other part is located on the air outlet side of the condenser 11. The fans 12 located on the air inlet side are configured to blow air to the condenser 11, and the fans 12 located on the air outlet side are configured to exhaust air from the condenser 11.

[0073] During the noise test on the air outlet side of the condenser 11, the condenser 11 can shield part of the noise of the fan 12, which is beneficial to reducing the measured noise level, and further helps the cooling system 10 meet the noise requirements of relevant standards.

[0074] like Figure 7 As shown, in some embodiments, a plurality of fans 12 are disposed on one side of the condenser 11 along the first direction X close to the air inlet side.

[0075] In this way, during the noise test on the air outlet side of the condenser 11, the condenser 11 can shield the noise of all fans 12, which is beneficial to reducing the size of the measured noise, and further helps the cooling system 10 meet the relevant noise requirements.

[0076] like Figure 8As 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 .

[0077] 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.

[0078] Please continue reading Figure 8 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 .

[0079] 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.

[0080] In some embodiments, blower 12 is a crossflow blower.

[0081] It is understandable that the cross-flow fan can set the appropriate size of the flow surface 12a as needed, so as to achieve the purpose of making the size of the flow surface 12a of the fan 12 along the second direction Y larger than the size along the third direction Z, and the specific size of the flow surface 12a along the second direction Y and the third direction Z can be customized as needed, so that the area of ​​the flow surface 12a of the fan 12 has stronger adaptability. In addition, the airflow of the cross-flow fan is more uniform, which is conducive to improving the cooling effect on the condenser 11.

[0082] In some embodiments, the second direction Y is arranged along the gravity direction, and the third direction Z is arranged along the horizontal direction.

[0083] Since the size of the flow surface 12a of the fan 12 along the second direction Y is larger than the size along the first direction X, the second direction Y is set along the gravity direction, and the third direction Z is arranged along the horizontal direction, then the size of the fan 12 along the vertical direction is larger than the size along the horizontal direction, which is suitable for the "tall and thin" arrangement space of the fan 12 and is beneficial to reducing the space occupied by the fan 12.

[0084] In some embodiments, at least two fans 12 are arranged along the second direction Y.

[0085] At least two fans 12 are arranged along the second direction Y, and the sizes of different fans 12 along the second direction Y may be the same or different, and may be specifically set according to actual needs or spatial arrangement. This is conducive to more flexible arrangement of the size and arrangement of the fan 12 along the second direction Y as needed, thereby improving the adaptability of the fan 12 to the arrangement of the cooling system 10.

[0086] In some embodiments, one fan 12 is provided on the side of the at least two fans 12 arranged along the second direction Y close to the air outlet side along the first direction X.

[0087] In other words, there is always one and only one fan 12 at the outermost side of the air outlet direction along the first direction X toward the condenser 11, which is helpful to reduce the noise measured at the noise test point and facilitate the noise of the cooling system 10 to meet the relevant standard requirements.

[0088] On 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 perform heat exchange with the battery 41, and the condenser 11 is connected to the fluid pipeline 42.

[0089] 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. Alternatively, the cooling system 10 may be provided with a separate chassis 16, which is located outside the box 43. The condenser 11, the fan 12, etc. are integrated in the chassis 16, and the pipelines in the chassis 16 are connected to the fluid pipeline 42 through pipelines.

[0090] 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.

[0091] 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.

[0092] 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.

[0093] In some embodiments, the cooling system 10 provided by the present application includes a condenser 11, a sound insulation member 13, and a plurality of fans 12. The condenser 11 takes in and out air along a first direction X. At least two fans 12 are arranged along the first direction X. The fan 12 is a cross-flow fan. The fan 12 has a flow surface 12a. The flow surface 12a is extended along the second direction Y and the third direction Z. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other. The second direction Y is arranged along the gravity direction. The third direction Z is arranged along the horizontal direction. The fan 12 takes in and out air along the first direction X via the flow surface 12a. The size of the flow surface 12a along the second direction Y is greater than the size along the third direction Z. The condenser 11 has a flow area 11a and a non-flow area 11b. The condenser 11 discharges air along the first direction X via the flow area 11a. The sound insulation member 13 is arranged in the non-flow area 11b of the condenser 11.

[0094] The cooling system 10 provided in the embodiment of the present application, by arranging a plurality of fans 12 along the first direction X, is conducive to increasing the area of ​​the flow surface 12a of a single fan 12 and reducing the rotation speed of the fan 12 while meeting the ventilation requirements of the condenser 11, thereby facilitating the reduction of the noise generated by the fan 12. Furthermore, since the plurality of fans 12 are arranged along the first direction X, it is conducive to reducing the magnitude of the measured noise, which is further conducive to the noise generated by the cooling system 10 meeting the requirements of the relevant standards.

[0095] 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 plurality of fans, at least two of which are arranged along the first direction, the fans having flow-through surfaces, the flow-through surfaces extending along the second direction and the third direction, the first direction, the second direction and the third direction intersecting with each other, the fans taking in and out air along the first direction via the flow-through surfaces, the size of the flow-through surfaces along the second direction being greater than the size along the third direction.

2. The cooling system according to claim 1, characterized in that: At least part of the plurality of fans are arranged on one side of the condenser along the first direction, and at least another part is arranged on the other side of the condenser along the first direction.

3. The cooling system according to claim 1, characterized in that: The plurality of fans are arranged on one side of the condenser close to the air inlet side along the first direction.

4. The cooling system according to claim 2 or 3, characterized in that: The cooling system further comprises a sound insulating member, and the sound insulating member is arranged on the condenser.

5. The cooling system according to claim 4, 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.

6. The cooling system according to claim 1, characterized in that: The fan is a cross-flow fan.

7. The cooling system according to claim 1, characterized in that: The second direction is arranged along the gravity direction, and the third direction is arranged along the horizontal direction.

8. The cooling system according to claim 1, characterized in that: At least two of the fans are arranged along the second direction.

9. The cooling system according to claim 8, characterized in that: The at least two fans arranged along the second direction are provided with one fan on one side close to the air outlet side along the first direction.

10. 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; The cooling system according to any one of claims 1 to 9, wherein the condenser is in communication with the fluid pipeline.

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

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