Cooling unit and energy storage container

Abstract

The utility model provides a cooling unit and an energy storage container. The cooling unit comprises a fan heat exchange area, and an electric control installation area and a functional device installation area are formed on the two sides, in the second direction, of the fan heat exchange area correspondingly. A fan assembly and a heat exchanger are arranged in the fan heat exchange area; an electric control assembly is arranged in the electric control mounting area; and a plurality of heat exchange components are arranged in the functional device mounting area. As mentioned above, the fan heat exchange area is located in the middle of the cooling unit, and the electric control installation area and the functional device installation area are located at the two ends, in the second direction, of the cooling unit correspondingly. Therefore, the problem that the spatial layout of each component of the cooling unit is unreasonable is solved, and operators can conveniently enter the electric control mounting area and the functional device mounting area so as to respectively complete the disassembly, replacement and maintenance operations of the electric control assembly and each heat exchange component.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooling equipment, in particular to a cooling unit, and relates to an energy storage container comprising the cooling unit. BACKGROUND

[0002] The cooling unit promotes airflow flow through a fan assembly to achieve rapid and efficient heat exchange between external airflow and refrigerant in the heat exchanger. The spatial layout of each component in the cooling unit has an important influence on the function and maintenance of the system. In the process of implementing the present application, the inventors found that at least the following technical problems exist in the prior art: the overall structure of the existing cooling unit is not compact, occupying a large space volume. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the purpose of the present application is to provide a cooling unit which at least solves the problem of unreasonable spatial layout of each component in the cooling unit.

[0004] Another purpose of the present application is to provide a thermal management system comprising the cooling unit.

[0005] Another purpose of the present application is to provide an energy storage container comprising the thermal management system.

[0006] In order to achieve the above purpose, the present application provides the following technical solutions:

[0007] A cooling unit comprising a fan heat exchange area, wherein the fan heat exchange area is formed with an electric control installation area and a functional device installation area on both sides along a second direction;

[0008] The fan heat exchange area is provided with a fan assembly and a heat exchanger;

[0009] The electric control installation area is provided with an electric control assembly;

[0010] The functional device installation area is provided with a plurality of heat exchange components.

[0011] Optionally, in the cooling unit, the cooling unit comprises a shell, and the internal space of the shell is divided into the fan heat exchange area and the functional device installation area along the second direction.

[0012] The electric control assembly is detachably installed on one side of the shell away from the functional device installation area to form the electric control installation area.

[0013] Optionally, in the cooling unit, the fan heat exchange area comprises a first cavity and a second cavity distributed along a first direction; the fan assembly is arranged in the first cavity; the heat exchanger is arranged in the second cavity and is inclined along the first direction, and the heat exchanger divides the second cavity into an air inlet space and an air outlet space, so that the air flowing into the air inlet space flows into the air outlet space through the heat exchanger.

[0014] The air outlet of the fan assembly is communicated with the air inlet space and is sealingly connected with the air inlet space; and the first direction is perpendicular to the second direction.

[0015] Optionally, in the cooling unit, the fan assembly is a volute fan; the volute fan comprises a volute and an impeller; the rotation axis of the impeller is perpendicular to the bottom wall of the first cavity; the top wall of the volute is provided with an air inlet; and the circumferential wall of the volute is provided with the air outlet.

[0016] The side wall of the first cavity away from the second cavity is provided with an air inlet grille.

[0017] The top wall of the second cavity is provided with an air outlet grille.

[0018] Optionally, in the cooling unit, the heat exchanger is provided with a first baffle at both ends along the second direction, and the first baffle is fixed to the second cavity and supports the heat exchanger.

[0019] The two first baffles, the bottom wall of the second cavity and the bottom wall of the heat exchanger form the air inlet space.

[0020] Optionally, in the cooling unit, the heat exchanger is provided with a second baffle at both ends along the second direction, and the second baffle abuts against the top wall of the heat exchanger and is fixed to the second cavity.

[0021] The two second baffles, the side wall of the second cavity away from the first cavity, the top wall of the second cavity and the top wall of the heat exchanger form the air outlet space.

[0022] Optionally, in the cooling unit, the electric control assembly is provided with a first positioning member, and the shell is provided with a second positioning member; the electric control assembly is positioned on the shell through the positioning cooperation of the first positioning member and the second positioning member.

[0023] Optionally, in the cooling unit, the electric control assembly comprises a first docking part, and the shell comprises a second docking part; the first docking part and the second docking part are aligned and attached along the second direction, and the electric control assembly is fixed on the shell through the first fastener penetrating through the first docking part and the second docking part, respectively.

[0024] Optionally, in the cooling unit, the heat exchange component at least includes a compressor, a gas-liquid separator and a liquid accumulator.

[0025] An energy storage container includes a photovoltaic system, and a cooling unit for heat exchange of an energy storage battery of the photovoltaic system; the cooling unit is the cooling unit as described above.

[0026] As can be seen from the above technical solutions, the cooling unit provided by the present application includes a fan heat exchange area, and the fan heat exchange area is formed with an electrical control mounting area and a functional component mounting area on two sides along a second direction; the fan heat exchange area is provided with a fan assembly and a heat exchanger; the electrical control mounting area is provided with an electrical control assembly; and the functional component mounting area is provided with a plurality of heat exchange components.

[0027] The electrical control mounting area of the present application is arranged on a first side of the fan heat exchange area along the second direction, and the electrical control mounting area has a first side surface opposite to the fan heat exchange area, and other side surfaces of the electrical control mounting area except the first side surface are not blocked by other components of the cooling unit, so as to facilitate an operator to enter the electrical control mounting area and complete disassembly, replacement and maintenance operations on the electrical control assembly. All the heat exchange components are integrally arranged in the functional component mounting area, so as to realize orderly arrangement of the heat exchange components. Further, the functional component mounting area is arranged on a second side of the fan heat exchange area along the second direction, and the functional component mounting area has a second side surface opposite to the fan heat exchange area, and other side surfaces of the functional component mounting area except the second side surface are not blocked by other components of the cooling unit, so as to facilitate an operator to enter the functional component mounting area and complete disassembly, replacement and maintenance operations on the heat exchange components.

[0028] Therefore, the fan heat exchange area is located at a middle position of the cooling unit, and the electrical control mounting area and the functional component mounting area are respectively located at two end portions of the cooling unit along the second direction. As described above, the problem of unreasonable spatial layout of the components of the cooling unit is solved, and an operator can conveniently enter the electrical control mounting area and the functional component mounting area to complete disassembly, replacement and maintenance operations on the electrical control assembly and the heat exchange components, respectively.

[0029] The present application also provides an energy storage container including a cooling unit for heat exchange of an energy storage battery in an energy storage system, and the cooling unit is the cooling unit as described above. The energy storage container includes any one of the cooling units described above, and the energy storage container with the cooling unit has the same effects as the cooling unit, and thus the description is not repeated herein. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0031] Figure 1 A three-dimensional diagram of a cooling unit provided in an embodiment of the present application;

[0032] Figure 2 for Figure 1 sectional view of

[0033] Figure 3 A schematic diagram of the structure of the cooling unit provided in an embodiment of the present application without the cover plate;

[0034] Figure 4 for Figure 3 A top view of

[0035] Figure 5 An exploded view of the electronic control assembly and housing provided in an embodiment of the present application;

[0036] Figure 6 A partial diagram of the positioning and matching of the electronic control component and the housing provided in an embodiment of the present application.

[0037] exist Figures 1-6 middle:

[0038] 1. Electric control installation area; 2. Fan heat exchange area; 3. Functional device installation area; 4. Housing;

[0039] 11. Electronic control components;

[0040] 21. First chamber; 22. Second chamber; 23. Fan assembly; 24. Heat exchanger; 25. First baffle; 26. Second baffle; 27. Stopper;

[0041] 211, air intake grille;

[0042] 31. Compressor; 32. Gas-liquid separator; 33. Liquid receiver;

[0043] 41. Second positioning member; 42. First fastener; 43. Plug port; 44. Housing; 45. Cover plate;

[0044] 111. First positioning member;

[0045] 221, air inlet space; 222, air outlet space; 223, air outlet grille;

[0046] 231, volute; 232, impeller;

[0047] 241, first end; 242, second end;

[0048] 261. Limiting part. DETAILED DESCRIPTION

[0049] The present application provides a cooling unit and an energy storage container, which solve the problem of unreasonable spatial layout of the components of the cooling unit.

[0050] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0051] like Figures 1-6 As shown, an embodiment of the present application provides a cooling unit comprising a fan heat exchange area 2. An electrical control installation area 1 and a functional component installation area 3 are formed on either side of the fan heat exchange area 2 along a second direction. The fan heat exchange area 2 is provided with a fan assembly 23 and a heat exchanger 24. The electrical control installation area 1 is provided with an electrical control assembly 11. The functional component installation area 3 is provided with several heat exchange components.

[0052] It should be noted that the cooling unit can serve as the external heat exchange structure of a thermal management system. A thermal management system with the cooling unit described above can be used to exchange heat with the energy storage batteries in an energy storage system. Refrigerant flows into the internal heat exchange structure located indoors and exchanges heat with the energy storage batteries; the refrigerant then flows into the outdoor cooling unit and exchanges heat with the external airflow.

[0053] Please see the attached Figure 2 , the second direction is attached Figure 2 In the direction indicated by the middle arrow, the two sides of the fan heat exchange area 2 along the second direction are the first side and the second side respectively; the electrical control installation area 1 is located on the first side of the fan heat exchange area 2, and the functional device installation area 3 is located on the second side of the fan heat exchange area 2.

[0054] Furthermore, the heat exchanger 24 is a tube-fin heat exchanger, which acts as a condenser when cooling the energy storage batteries of the photovoltaic system; and acts as an evaporator when heating the energy storage batteries of the photovoltaic system.

[0055] The fan assembly 23 and heat exchanger 24 are integrated into the central fan heat exchange area 2 to complete the heat exchange between the refrigerant in the heat exchanger 24 and the external airflow within the fan heat exchange area 2. The fan heat exchange area 2 has a sufficiently large volume to ensure that the heat exchanger 24 and the airflow have a sufficient heat exchange area.

[0056] The electric control assembly 11 is an important component of the cooling unit, mainly responsible for controlling and regulating the operation of the system. The electric control installation area 1 is arranged on the first side of the fan heat exchange area 2, and the electric control installation area 1 has a first side opposite to the fan heat exchange area 2. The other sides of the electric control installation area 1 except the first side are not blocked by other components of the cooling unit, so as to facilitate the operator to enter the electric control installation area 1 to complete the disassembly, replacement and maintenance operation of the electric control assembly 11.

[0057] In the refrigerant circulation path of the cooling unit, the components other than the fan assembly 23 and the heat exchanger 24 are heat exchange elements. All the heat exchange elements are integrally arranged in the functional device installation area 3, realizing the orderly arrangement of the above-mentioned heat exchange elements. Further, the functional device installation area 3 is arranged on the second side of the fan heat exchange area 2, and the functional device installation area 3 has a second side opposite to the fan heat exchange area 2. The other sides of the functional device installation area 3 except the second side are not blocked by other components of the cooling unit, so as to facilitate the operator to enter the functional device installation area 3 to complete the disassembly, replacement and maintenance operation of the heat exchange elements.

[0058] In summary, the fan heat exchange area 2 is located in the middle position of the cooling unit, and the electric control installation area 1 and the functional device installation area 3 are respectively located at the two ends of the cooling unit along the second direction. As described above, the problem of unreasonable spatial layout of the components of the cooling unit is solved, and the operator can easily enter the electric control installation area 1 and the functional device installation area 3 to complete the disassembly, replacement and maintenance operation of the electric control assembly 11 and the heat exchange elements respectively.

[0059] Please refer to the accompanying drawings Figure 2 In some embodiments of the present application, the cooling unit includes a housing 4, and the internal space of the housing 4 is divided into the fan heat exchange area 2 and the functional device installation area 3 along the second direction. The electric control assembly 11 is detachably installed on one side of the housing 4 away from the functional device installation area 3 to form the electric control installation area 1.

[0060] It should be noted that the housing 4 forms the surrounding walls of the fan heat exchange area 2 and the functional device installation area 3. The electric control installation area 1 does not have surrounding walls, and when the electric control assembly 11 is installed on the housing 4, the space occupied by the electric control assembly 11 itself is the space where the electric control installation area 1 is located.

[0061] Please refer to the accompanying drawings Figure 1 The housing 4 includes an outer shell 44 with a top opening and a cover plate 45 covering the top opening. As described above, when the cover plate 45 is detached from the outer shell 44, the top surrounding walls of the fan heat exchange area 2 and the functional device installation area 3 are removed, so that the internal space of the fan heat exchange area 2 and the functional device installation area 3 is exposed, facilitating the disassembly, replacement and maintenance operation of the fan assembly 23, the heat exchanger 24 and the heat exchange elements.

[0062] It should be noted that the electric control assembly 11 comprises an electric control box and electronic devices arranged inside the electric control box. Optionally, the electronic devices are assembled in the electric control box, and then the electric control box is fixedly installed on the side wall of the shell 4, so as to realize the fixed installation of the electric control assembly 11 on the shell 4.

[0063] The electric control assembly 11 can be relatively independently detached from the shell 4, so as to separately disassemble, replace and maintain the electronic devices of the electric control assembly 11. The above operation is not limited by the position of the shell 4, and is more convenient, fast, time-saving and labor-saving.

[0064] In some embodiments of the present application, please refer to the accompanying drawings Figure 2 The fan heat exchange area 2 comprises a first cavity 21 and a second cavity 22 distributed along a first direction. The fan assembly 23 is arranged in the first cavity 21. The heat exchanger 24 is obliquely arranged in the second cavity 22 along the first direction. Figure 3 The heat exchanger 24 divides the second cavity 22 into an air inlet space 221 and an air outlet space 222, so that the airflow flowing into the air inlet space 221 flows into the air outlet space 222 after obliquely passing through the heat exchanger 24. The air outlet of the fan assembly 23 is connected to the air inlet space 221 and the two are sealingly connected. The first direction is perpendicular to the second direction.

[0065] It should be noted that the first direction is the direction indicated by the arrow in the accompanying drawings Figure 2 The air inlet space 221 and the air outlet space 222 are connected only through the heat exchanger 24, and there is no connection relationship between the air inlet space 221 and the air outlet space 222 except the heat exchanger 24, so as to ensure the airflow passing through the heat exchanger 24.

[0066] As described above, the fan heat exchange area 2 is divided into the first cavity 21 and the second cavity 22, so that the fan assembly 23 and the heat exchanger 24 are arranged in the first cavity 21 and the second cavity 22 respectively. As described above, the airflow is pressurized and accelerated by the fan assembly 23 in the first cavity 21, and then flows through the heat exchanger 24 in the second cavity 22 to exchange heat with the refrigerant. The airflow flows between the first cavity 21 and the second cavity 22, which to some extent prolongs the flow path of the airflow in the fan heat exchange area 2, helps to stabilize the airflow, and reduces noise and vibration.

[0067] Secondly, the heat exchanger 24 is arranged obliquely in the second cavity 22, which divides the second cavity 22 into an air inlet space 221 and an air outlet space 222, and the airflow flowing into the air inlet space 221 can only flow into the air outlet space 222 after passing through the heat exchanger 24. As described above, on the one hand, the airflow obliquely (non-perpendicularly) passes through the heat exchanger 24, effectively increasing the contact area between the airflow and the heat exchanger 24, which is conducive to improving the heat exchange efficiency; on the other hand, the flow path of the airflow is restricted, so that the airflow can only pass through the side surface of the heat exchanger 24 close to the air outlet space 222 from the side surface of the heat exchanger 24 close to the air inlet space 221, which not only ensures the airflow passing through the heat exchanger 24, so that the airflow is in full contact with the heat exchanger 24 and there is no dead angle for heat exchange, further improving the heat exchange efficiency, but also prolongs the flow path of the airflow in the second cavity 22, which is helpful for the steady flow effect of the airflow, further reducing noise and vibration.

[0068] Please refer to the accompanying drawings Figures 2-3 In some embodiments of the present application, the fan assembly 23 is a volute fan; the volute fan includes a volute 231 and an impeller 232; the rotation axis of the impeller 232 is perpendicular to the bottom wall of the first cavity 21, the top wall of the volute 231 is formed with an air inlet, and the circumferential wall of the volute 231 is formed with an air outlet. The side wall of the first cavity 21 away from the second cavity 22 is provided with an air inlet grille 211; the top wall of the second cavity 22 is provided with an air outlet grille 223.

[0069] It should be noted that the position of the rotation axis is the position of the dashed line in the fan assembly 23 in the accompanying drawings. Figure 2

[0070] The volute fan is selected, and the outlet diameter of the volute 231 gradually increases to effectively guide the airflow to flow along a predetermined path after being discharged from the impeller 232, reduce turbulence and resistance, and thus reduce noise and vibration, improve the efficiency and performance of the cooling unit.

[0071] Further, the rotation axis of the impeller 232 of the volute fan is perpendicular to the bottom wall of the first cavity 21; as described above, the rotary motor for driving the rotation of the impeller 232 is installed on the bottom wall of the first cavity 21, so that the structure of the volute fan is more compact, and it is possible to arrange multiple volute fans in a gapless parallel arrangement, thereby ensuring the compactness of the structure of the cooling unit. For example, please refer to the accompanying drawings Figure 2 、 4 In the second direction, two volute fans are arranged in a gapless parallel arrangement in the first cavity 21; "gapless parallel arrangement" means that the air outlets of the volutes 231 can be arranged in a gapless parallel arrangement.

[0072] Please refer to the accompanying drawings Figure 3 ​The air flow circulation path of the cooling unit is: the air inlet grille 211→the air inlet of the volute 231→the air outlet of the volute 231→the air inlet space 221→the heat exchanger 24→the air outlet space 222→the air outlet grille 223. The positions of the air inlet grille 211 and the air outlet grille 223 are limited, further increasing the number of bends of the air flow circulation path, and further effectively lengthening the air flow circulation path.

[0073] Please refer to the accompanying drawings Figure 3 In some embodiments, the heat exchanger 24 includes a first end 241 close to the first cavity 21 and a second end 242 away from the first cavity 21; the first end 41 is arranged at the top of the air outlet of the volute 231, and the second end 242 is inclined downward relative to the first end 241, so that the height of the first end 241 is greater than the height of the second end 242, and the second end 242 extends to the side wall of the second cavity 22 away from the first cavity 21.

[0074] As described above, the inclined arrangement of the heat exchanger 24 in the second cavity 22 is limited, so that the air inlet space 221 is located below the air outlet space 222, thereby limiting the air flow to pass through the heat exchanger 24 from bottom to top, which can reduce the resistance of the air flow in the flow process, and make the air flow more uniform and stable.

[0075] Please refer to the accompanying drawings Figure 2 In some embodiments of the present application, the heat exchanger 24 is provided with a first baffle 25 fixed to the second cavity 22 at both ends in the second direction, and the first baffle 25 supports and fixes the heat exchanger 24. The above-mentioned two first baffles 25, the bottom wall of the second cavity 22 and the bottom wall of the heat exchanger 24 form the air inlet space 221.

[0076] It should be noted that the first baffle 25 can be a triangular support plate to form stable support for the heat exchanger 24.

[0077] As described above, the specific arrangement of the first baffle 25 is limited, and the above-mentioned two first baffles 25 can not only reliably and stably support the heat exchanger 24, but also form the surrounding wall of the air inlet space 221 to constrain the flow path of the air flow.

[0078] Further, a plurality of support rods parallel to the second direction are connected between the two first baffles 25. Optionally, support rods are connected between each pair of opposite corner positions of the two first baffles 25; for example, when the first baffle 25 is a triangular support plate, support rods are connected between the three pairs of opposite corner positions of the two triangular support plates. As described above, the mounting and fixing effect of the two first baffles 25 on the bottom wall of the second cavity 22 can be further increased, and the stable and firm support effect of the first baffle 25 on the heat exchanger 24 can be further increased.

[0079] Please refer to the accompanying drawings Figure 2In some embodiments of the present application, the heat exchanger 24 is provided with a second baffle 26 at both ends in the second direction, the second baffle 26 abutting against the top wall of the heat exchanger 24 and fixed to the second cavity 22. The two second baffles 26, the side wall of the second cavity 22 away from the first cavity 21, the top wall of the second cavity 22, and the top wall of the heat exchanger 24 form an air outlet space 222.

[0080] It should be noted that the top wall of the second baffle 26 is in registration with the top wall of the second cavity 22. The second baffle 26 can be a triangular support plate to form stable support on the heat exchanger 24.

[0081] As described above, the specific arrangement of the second baffle 26 is defined, and the second baffle 26 forms the surrounding wall of the air outlet space 222, thereby restricting the flow path of the airflow.

[0082] Please refer to the accompanying drawings Figure 2 In some embodiments, the cooling unit includes a limiting member 27. The second baffle 26 includes a limiting portion 261 capable of being limited in the limiting member 27.

[0083] As described above, through the limiting cooperation of the limiting portion 261 and the limiting member 27, the limiting effect of the second baffle 26 in the second cavity 22 is achieved, not only the accurate positioning of the fixed installation of the second baffle 26 on the heat exchanger 24 is achieved, but also the accurate positioning of the fixed installation of the second baffle 26 in the second cavity 22 is achieved.

[0084] Further, the limiting member 27 is a limiting rod extending in the second direction, and the limiting member 27 is fixed to the shell 4; the limiting member 27 is located on the side of the second cavity 22 away from the first cavity 21 and close to the top wall of the second cavity 22. The second baffle 26 is formed with a limiting groove with material missing on the side away from the first cavity 21, and the limiting groove is the limiting portion 261.

[0085] In the first direction, the second baffle 26 is pushed into installation from the side of the second cavity 22 close to the first cavity 21 to the side of the second cavity 22 away from the first cavity 21, until the limiting portion 261 is limited and connected with the limiting member 27, which indicates that the second baffle 26 is installed in place.

[0086] Please refer to the accompanying drawings Figure 6 In some embodiments of the present application, the electric control assembly 11 is provided with a first positioning member 111, and the shell 4 is provided with a second positioning member 41. Through the positioning cooperation of the first positioning member 111 and the second positioning member 41, the positioning of the electric control assembly 11 on the shell 4 is achieved.

[0087] It should be noted that the electric control assembly 11 is connected with a first extension plate extending to the direction of the shell 4 on the side wall of the shell 4, and the first extension plate is a first positioning member 111. The side wall of the shell 4 is provided with a plug-in port 43, and the bottom side of the plug-in port 43 is connected with a second extension plate extending to the inside of the shell 4, and the second extension plate is a second positioning member 41. When the electric control assembly 11 is installed in the shell 4, the first positioning member 111 extends into the inside of the shell 4 through the plug-in port 43 and is in position and fits with the second positioning member 41; further, along the rotation axis, the first positioning member 111 is in position and fits with the second positioning member 41. The first positioning member 111 is provided with a first positioning hole, and the second positioning member 41 is provided with a second positioning hole, and a second fastener is sequentially threaded through the first positioning hole and the second positioning hole to realize the positioning and cooperation of the first positioning member 111 and the second positioning member 41. The second fastener can be a positioning pin or a positioning bolt.

[0088] The plug-in port 43 is provided on the side wall of the shell 44 close to the fan assembly 23; the cover plate 45 of the shell 4 is detached from the shell 44, and then enters from the top opening of the shell 44 to control the second fastener and thread it through the first positioning member 111 and the second positioning member 41.

[0089] As described above, the positioning of the fan assembly 23 on the shell 4 is realized, and the first locking and fixing of the two is realized, and the precise positioning for the second locking and fixing of the two is provided.

[0090] Please refer to the accompanying Figure 5 In some embodiments of the present application, the electric control assembly 11 includes a first docking portion, and the shell 4 includes a second docking portion. The first docking portion and the second docking portion are in position and fit along the second direction to realize the fixing of the electric control assembly 11 on the shell 4 by the first fastener 42 threaded through the first docking portion and the second docking portion respectively.

[0091] It should be noted that the first docking portion is provided with a first mounting hole, and the second docking portion is provided with a second mounting hole to complete the locking and fixing of the first docking portion and the second docking portion by the first fastener 42 threaded through the first mounting hole and the second mounting hole respectively, and then realize the fixing of the electric control assembly 11 on the shell 4. The first docking portion and the second docking portion are both U-shaped structures, and the three surrounding edges of the U-shaped structure formed by the first docking portion and the second docking portion are all locked and fixed by a plurality of first fasteners 42. The first fastener 42 can be a fastening pin or a fastening bolt.

[0092] Further, when the first positioning member 111 and the second positioning member 41 are positioned and matched, the first connecting part is just in position and attached to the second connecting part, realizing accurate positioning of the installation and fixation of the two. Further, the first fastener 42 is not separated from the second mounting hole of the second connecting part; the cover plate 45 of the shell 4 is disassembled to be separated from the shell 44, and then accessed from the top opening of the shell 44 to control the first fastener 42 to be screwed into the first mounting hole of the first connecting part.

[0093] As described above, through the locking and fixation of the first connecting part and the second connecting part, the second locking and fixation of the electric control assembly 11 on the shell 4 is realized, which guarantees the firm and stable connection effect of the electric control assembly 11 on the shell 4.

[0094] Please refer to the accompanying drawings Figure 2 , 4 In some embodiments of the present application, the heat exchange component at least includes a compressor 31, a gas-liquid separator 32 and a liquid accumulator 33.

[0095] In the cooling mode, the compressor 31 works to compress the refrigerant into high-temperature and high-pressure refrigerant, and the high-temperature and high-pressure refrigerant flows to the heat exchanger 24 (at this time, the heat exchanger 24 is a condenser). The high-temperature and high-pressure refrigerant is heat-exchanged with the external airflow in the heat exchanger 24, and becomes medium-temperature and high-pressure refrigerant.

[0096] In the cooling mode, the refrigerant flowing out of the heat exchanger 24 (at this time, the heat exchanger 24 is a condenser) first flows into the liquid accumulator 33, and then flows into the built-in heat exchanger of the thermal management system through the liquid accumulator 33 to cool the energy storage battery of the photovoltaic system. The liquid accumulator 33 is responsible for storing a certain amount of liquid refrigerant and adjusting the circulation amount of the refrigerant as needed, and when the thermal management system is suspended or overhauled, the liquid accumulator 33 contains the liquid refrigerant in the thermal management system to prevent the liquid refrigerant from overflowing to cause pollution or waste.

[0097] In the cooling mode, the refrigerant flowing out of the built-in heat exchanger of the thermal management system first flows into the gas-liquid separator 32, and then enters the inlet of the compressor 31. The gas-liquid separator 32 absorbs moisture and stores liquid refrigerant, so that only gaseous refrigerant is sucked into the inlet of the compressor 31, avoiding the phenomenon of liquid strike caused by liquid refrigerant entering the compressor 31.

[0098] The present application also provides an energy storage container, which comprises a cooling unit for heat exchange of an energy storage battery in an energy storage system. The energy storage container has the advantages brought by the above cooling unit, and specific details can be referred to the related parts in the above embodiments, which will not be described here.

[0099] The above describes the basic principles of the present application in combination with specific embodiments, but it should be noted that the advantages, benefits, effects and the like mentioned in the present application are only examples and are not limiting, and these advantages, benefits, effects and the like cannot be considered as necessary for each embodiment of the present application. In addition, the above specific details disclosed are only for the purpose of illustration and understanding, and are not limiting, and the above details do not limit the present application to be necessarily implemented with the above specific details.

[0100] The block diagrams of the devices, apparatuses, equipment, systems involved in the present application are only illustrative examples and are not intended to require or imply the connection, arrangement, configuration shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, systems can be connected, arranged, configured in any manner. Words such as "include", "contain", "have" and the like are open-ended words, mean "including but not limited to", and can be used interchangeably. The words "or" and "and" used herein mean the word "and / or", and can be used interchangeably unless the context clearly indicates otherwise. The word "such as" used herein means the phrase "such as but not limited to", and can be used interchangeably.

[0101] It should also be noted that in the devices, equipment and methods of the present application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions of the present application.

[0102] The above description of the disclosed aspects is provided so that any person skilled in the art can make or use the present application. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but is intended to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0103] It should be understood that the adjectives "first", "second", "third", "fourth", "fifth" and "sixth" used in the embodiments of the present application are only used for clearer description of the technical solutions, and cannot be used to limit the protection scope of the present application.

[0104] The above description has been given for the purpose of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A cooling unit, characterized in that The fan heat exchange area (2) is provided with a fan assembly (23) and a heat exchanger (24). The electric control mounting area (1) is provided with an electric control assembly (11). The functional device mounting area (3) is provided with a plurality of heat exchange components. The cooling unit comprises a shell (4), and an inner space of the shell (4) is divided into the fan heat exchange area (2) and the functional device mounting area (3) along a second direction.

2. Cooling pack according to claim 1, characterized in that The electric control assembly (11) is detachably mounted on a side of the shell (4) away from the functional device mounting area (3) to form the electric control mounting area (1). The fan heat exchange area (2) comprises a first cavity (21) and a second cavity (22) distributed along a first direction; the fan assembly (23) is arranged in the first cavity (21); the heat exchanger (24) is obliquely arranged in the second cavity (22) along the first direction, and the heat exchanger (24) divides the second cavity (22) into an air inlet space (221) and an air outlet space (222), so that air flowing into the air inlet space (221) flows into the air outlet space (222) after obliquely passing through the heat exchanger (24).

3. The cooling pack of claim 1, wherein, The air outlet of the fan assembly (23) is connected with the air inlet space (221) and is in sealed connection with the air inlet space (221); and the first direction is perpendicular to the second direction. The fan assembly (23) is a volute fan; the volute fan comprises a volute and an impeller; the rotation axis of the impeller is perpendicular to the bottom wall of the first cavity (21); the top wall of the volute forms an air inlet; and the circumferential wall of the volute forms the air outlet.

4. The cooling pack of claim 3, wherein, An air inlet grille (211) is arranged on the side wall of the first cavity (21) away from the second cavity (22). An air outlet grille (223) is arranged on the top wall of the second cavity (22). First baffles (25) are arranged at both ends of the heat exchanger (24) along the second direction and are fixed to the second cavity (22); the first baffles (25) support and fix the heat exchanger (24).

5. The cooling pack of claim 3, wherein, The two first baffles (25), the bottom wall of the second cavity (22), and the bottom wall of the heat exchanger (24) enclose the air inlet space (221). Second baffles (26) are arranged at both ends of the heat exchanger (24) along the second direction; the second baffles (26) abut against the top wall of the heat exchanger (24) and are fixed to the second cavity (22).

6. The cooling pack of claim 5, wherein, The two second baffles (26), the side wall of the second cavity (22) away from the first cavity (21), the top wall of the second cavity (22), and the top wall of the heat exchanger (24) enclose the air outlet space (222). First positioning members (111) are arranged on the electric control assembly (11), and second positioning members (41) are arranged on the shell (4); the positioning of the electric control assembly (11) on the shell (4) is realized through the positioning cooperation of the first positioning members (111) and the second positioning members (41).

7. The cooling pack of claim 2, wherein, ​ 8. The cooling pack of claim 2, wherein, The electric control assembly (11) comprises a first docking portion, and the shell (4) comprises a second docking portion; the first docking portion is aligned and attached to the second docking portion in a second direction, so as to realize the fixation of the electric control assembly (11) on the shell (4) through the first fastener (42) penetrating through the first docking portion and the second docking portion respectively.

9. Cooling pack according to any of claims 1-8, characterized in that The heat exchange element comprises at least a compressor (31), a gas-liquid separator (32) and a liquid accumulator (33).

10. An energy storage container, characterized by The cooling unit comprises a cooling unit as claimed in any one of claims 1-9 for heat exchange of the energy storage battery in the energy storage system.

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