Refrigerating unit and energy storage device

Abstract

The utility model discloses a refrigerating unit and an energy storage device, and belongs to the technical field of batteries. The first box body comprises an energy storage bin and a heat dissipation bin which are isolated from each other. The battery device is located in the energy storage bin. The refrigerating unit is located in the heat dissipation bin and at least used for cooling the battery device. The refrigeration main machine is located in the second box body and comprises a compressor, condensers are arranged on the upper side of the refrigeration main machine and at least one side of the refrigeration main machine in the first direction, the first direction and the vertical direction are arranged in a crossed mode, inlets of the condensers are connected with outlets of the compressor, and the condenser located on the upper side of the refrigeration main machine is a first condenser. The condenser located on the side, in the first direction, of the refrigeration main machine is a second condenser, and the first condenser and the second condenser are used for receiving refrigerants output by the compressor. According to the refrigerating unit and the energy storage device, the heat dissipation area of the condenser can be increased.

Description

Technical Field

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

[0002] With the development of battery energy storage technology, higher requirements are put forward for refrigeration units. In the related technology, the heat dissipation area of ​​the condenser of the refrigeration unit is insufficient. Utility Model Content

[0003] In order to solve the above technical problems, the present application provides a refrigeration unit and an energy storage device to increase the heat dissipation area of ​​the condenser.

[0004] This application is implemented through the following technical solutions.

[0005] A first aspect of an embodiment of the present application provides an energy storage device, comprising:

[0006] The first box body includes an energy storage compartment and a heat dissipation compartment that are isolated from each other;

[0007] A battery device, located in the energy storage compartment;

[0008] A refrigeration unit is located in the heat dissipation compartment, and the refrigeration unit is at least used to cool the battery device. The refrigeration unit includes a second box, a refrigeration main unit and a condenser. The refrigeration main unit is located in the second box. The refrigeration main unit includes a compressor. The condenser is arranged on the upper side of the refrigeration main unit and on at least one side of the refrigeration main unit along a first direction. The first direction is arranged crosswise with the up and down directions. The inlet of the condenser is connected to the outlet of the compressor. The condenser located on the upper side of the refrigeration main unit is a first condenser, and the condenser located on one side of the refrigeration main unit along the first direction is a second condenser. The first condenser and the second condenser are used to receive the refrigerant output by the compressor.

[0009] In an embodiment of the present application, a first condenser is arranged on the upper side of the refrigeration main unit, and a second condenser is arranged on at least one side of the refrigeration main unit along a first direction that is arranged crosswise with the up and down directions, so that the upper side of the refrigeration main unit and at least one side of the refrigeration main unit along the first direction can dissipate heat, which is beneficial to increasing the heat dissipation area of ​​the condenser, so that the refrigerant compressed by the compressor can dissipate heat in the condenser with a larger heat dissipation area, which is beneficial to improving the refrigeration capacity of the refrigeration unit.

[0010] In one embodiment, the condenser is located in the second housing, and the condenser is at least partially connected to the second housing.

[0011] In the embodiment of the present application, the condenser is located in the second box, and the condenser is at least partially connected to the second box, which is beneficial for better protection of the condenser by the second box, and then helps to extend the service life of the condenser.

[0012] In one embodiment, the first condenser is located above the second condenser, and the first condenser is arranged on two opposite sides of the second condenser along the first direction.

[0013] In an embodiment of the present application, the first condenser is located above the second condenser, and the first condenser is arranged on two opposite sides of the second condenser along a first direction, so that the first condenser can more fully utilize the space above the second condenser, and then the first condenser located above can have a larger heat dissipation area, which is beneficial to improve the refrigeration capacity of the refrigeration unit.

[0014] In one embodiment, two opposite sides of the first condenser along the first direction are connected to the second box.

[0015] In the embodiment of the present application, the first condenser is connected to the second box on both opposite sides along the first direction. On the one hand, it is beneficial to connect the first condenser and the second box more firmly; on the other hand, it is beneficial to increase the size of the first condenser in the first direction, so that the first condenser can have a larger heat dissipation area, which is beneficial to improve the refrigeration capacity of the refrigeration unit.

[0016] In one embodiment, a side of the first condenser facing the second condenser along the first direction is supported by the second condenser, and a side of the first condenser facing away from the second condenser along the first direction is connected to the second housing.

[0017] In the embodiment of the present application, one side of the first condenser facing the second condenser along the first direction is supported on the second condenser, and the one side of the first condenser facing the second condenser along the first direction is not connected to the corresponding box wall of the second box body, which facilitates the overall folding of the first condenser and the second condenser, reduces the installation steps of the first condenser and the second condenser, and is beneficial to improving the convenience of installation of the first condenser and the second condenser.

[0018] In one embodiment, the refrigeration host further includes a throttle valve and a heat exchanger, wherein one of the heat exchange paths of the throttle valve and the heat exchanger is sequentially connected between the outlet of the condenser and the inlet of the compressor, and the fluid in the other heat exchange path of the heat exchanger is at least used to cool the battery device.

[0019] In the embodiment of the present application, the throttle valve and the heat exchanger are integrated in the refrigeration main unit, which facilitates the disassembly and maintenance of the refrigeration unit in the energy storage device as a whole, which is beneficial to improving the convenience of maintenance of the refrigeration unit.

[0020] In one embodiment, the refrigeration host further includes a liquid storage tank for storing compressed liquid refrigerant, and the liquid storage tank is connected between the outlet of the condenser and the inlet of the throttle valve.

[0021] In an embodiment of the present application, the refrigeration host also includes a liquid storage tank for storing compressed liquid refrigerant. The liquid storage tank is connected between the outlet of the condenser and the inlet of the throttle valve, so that the liquid storage tank can at least replenish refrigerant into the heat exchange flow path of the refrigeration host, which is beneficial to improving the working stability of the refrigeration unit.

[0022] In one embodiment, the first condenser and the second condenser are both connected between the outlet of the compressor and the inlet of the throttle valve of the same refrigeration host, and the first condenser and the second condenser are connected in parallel.

[0023] In the embodiment of the present application, the first condenser and the second condenser are both connected between the outlet of the compressor and the inlet of the throttle valve of the same refrigeration host. The first condenser and the second condenser share a set of refrigeration hosts. The number of refrigeration hosts is small, which is conducive to saving space in the second box and reducing the operating cost of the refrigeration unit. The first condenser and the second condenser are connected in parallel, so that when one of the condensers fails, the other condenser can still work normally, which is conducive to improving the reliability of the operation of the entire refrigeration unit.

[0024] In one embodiment, there are multiple refrigeration hosts, the first condenser is connected between the outlet of the compressor of one of the refrigeration hosts and the inlet of the throttle valve, and the second condenser is connected between the outlet of the compressor of another refrigeration host and the inlet of the throttle valve.

[0025] In an embodiment of the present application, the first condenser is connected between the outlet of the compressor of one of the refrigeration hosts and the inlet of the throttle valve, and the second condenser is connected between the outlet of the compressor of the other refrigeration host and the inlet of the throttle valve, so that the cross-arranged first condenser and the second condenser are respectively connected to their respective corresponding refrigeration hosts, which facilitates the flexible configuration of the cooling capacity in different directions according to actual needs.

[0026] In one embodiment, the refrigeration unit further includes a fan, and each side of the condenser is correspondingly provided with the fan, and the box wall of the second box body has an opening for air intake and a vent corresponding to the fan.

[0027] In the embodiment of the present application, a fan is provided corresponding to each condenser, and the wall of the second box body has an opening for air intake and a vent corresponding to the fan, so that the heat dissipation airflow generated by the fan can enter the interior of the second box body from the opening of the second box body and flow through the condenser. The heat dissipation airflow generated by the fan can carry the heat of the refrigerant in the condenser and be discharged to the external environment through the vent of the second box body, which is beneficial to improve the heat dissipation efficiency of the condenser.

[0028] In one embodiment, the condenser on each side is located between the refrigeration host and the corresponding fan.

[0029] In an embodiment of the present application, each side condenser is located between the refrigeration main unit and the corresponding fan to reduce the obstruction of the heat dissipation airflow generated by the fan in the process of flowing through the condenser, so that the heat dissipation airflow generated by the fan can flow better through the condenser, which is beneficial to improving the heat dissipation efficiency of the condenser.

[0030] In one embodiment, the heat dissipation bin has an air inlet and an air outlet on its wall which are connected to the outer side of the first box body, the energy storage bin and the heat dissipation bin are arranged along the first direction, and the air outlet is formed on the bin wall of the heat dissipation bin on the side away from the energy storage bin and on the bin wall on the upper side of the heat dissipation bin.

[0031] In the embodiment of the present application, the energy storage bin and the heat dissipation bin are arranged along a first direction, and air outlets are formed on the bin wall on the side of the heat dissipation bin facing away from the energy storage bin and on the bin wall on the upper side of the heat dissipation bin, so that the air outlets of the heat dissipation bin can correspond one-to-one with the ventilation holes of the second box body, and then the heat dissipation airflow carrying heat generated by the fan can be directly discharged through the air outlet of the heat dissipation bin, which is convenient for the refrigeration unit to discharge the heat generated by the battery device into the external environment.

[0032] In one embodiment, the first box body also includes an electrical compartment isolated from the energy storage compartment and the heat dissipation compartment, respectively, and the energy storage device also includes an electric control cabinet located in the electrical compartment, and the electric control cabinet is at least used to control the battery device. The electrical compartment and the heat dissipation compartment are arranged along a second direction, and the second direction is respectively arranged to cross the first direction and the up and down directions and are not coplanar, and the air inlet and the opening for air intake on the wall of the second box body are both located on the side of the heat dissipation compartment away from the electrical compartment.

[0033] In an embodiment of the present application, the electrical compartment and the heat dissipation compartment are arranged along the second direction, and the air inlet and the opening for air inlet on the wall of the second box body are both located on the side of the heat dissipation compartment away from the electrical compartment, so that the heat dissipation airflow generated by the fan can avoid the electrical compartment in the process of entering the heat dissipation compartment, thereby reducing the loss of the heat dissipation airflow, allowing the heat dissipation airflow to better flow through the condenser, which is beneficial to improving the heat dissipation efficiency of the condenser.

[0034] A second aspect of an embodiment of the present application provides a refrigeration unit, comprising:

[0035] The second box;

[0036] A refrigeration host is located in the second box, and the refrigeration host includes a compressor;

[0037] The condenser is arranged on the upper side of the refrigeration main unit and on at least one side of the refrigeration main unit along a first direction. The first direction is arranged crosswise with the up and down directions. The inlet of the condenser is connected to the outlet of the compressor. The condenser located on the upper side of the refrigeration main unit is the first condenser, and the condenser located on one side of the refrigeration main unit along the first direction is the second condenser. The first condenser and the second condenser are used to receive the refrigerant output by the compressor.

[0038] In one embodiment, the condenser is located in the second housing, and the condenser is at least partially connected to the second housing.

[0039] In the embodiment of the present application, the condenser is located in the second box, and the condenser is at least partially connected to the second box, which is beneficial for better protection of the condenser by the second box, and then helps to extend the service life of the condenser.

[0040] In one embodiment, the first condenser is located above the second condenser, and the first condenser is arranged on two opposite sides of the second condenser along the first direction.

[0041] In an embodiment of the present application, the first condenser is located above the second condenser, and the first condenser is arranged on two opposite sides of the second condenser along a first direction, so that the first condenser can more fully utilize the space above the second condenser, and then the first condenser located above can have a larger heat dissipation area, which is beneficial to improve the refrigeration capacity of the refrigeration unit.

[0042] In one embodiment, two opposite sides of the first condenser along the first direction are connected to the second box.

[0043] In the embodiment of the present application, the first condenser is connected to the second box on both opposite sides along the first direction. On the one hand, it is beneficial to connect the first condenser and the second box more firmly; on the other hand, it is beneficial to increase the size of the first condenser in the first direction, so that the first condenser can have a larger heat dissipation area, which is beneficial to improve the refrigeration capacity of the refrigeration unit.

[0044] In one embodiment, a side of the first condenser facing the second condenser along the first direction is supported by the second condenser, and a side of the first condenser facing away from the second condenser along the first direction is connected to the second housing.

[0045] In the embodiment of the present application, one side of the first condenser facing the second condenser along the first direction is supported on the second condenser, and the one side of the first condenser facing the second condenser along the first direction is not connected to the corresponding box wall of the second box body, which facilitates the overall folding of the first condenser and the second condenser, reduces the installation steps of the first condenser and the second condenser, and is beneficial to improving the convenience of installation of the first condenser and the second condenser.

[0046] In one embodiment, the refrigeration host further includes a throttle valve and a heat exchanger, wherein one of the heat exchange paths of the throttle valve and the heat exchanger is sequentially connected between the outlet of the condenser and the inlet of the compressor, and the fluid in the other heat exchange path of the heat exchanger is at least used to cool the battery device.

[0047] In the embodiment of the present application, the throttle valve and the heat exchanger are integrated in the refrigeration main unit, which facilitates the disassembly and maintenance of the refrigeration unit in the energy storage device as a whole, which is beneficial to improving the convenience of maintenance of the refrigeration unit.

[0048] In one embodiment, the refrigeration host further includes a liquid storage tank for storing compressed liquid refrigerant, and the liquid storage tank is connected between the outlet of the condenser and the inlet of the throttle valve.

[0049] In an embodiment of the present application, the refrigeration host also includes a liquid storage tank for storing compressed liquid refrigerant. The liquid storage tank is connected between the outlet of the condenser and the inlet of the throttle valve, so that the liquid storage tank can at least replenish refrigerant into the heat exchange flow path of the refrigeration host, which is beneficial to improving the working stability of the refrigeration unit.

[0050] In one embodiment, the first condenser and the second condenser are both connected between the outlet of the compressor and the inlet of the throttle valve of the same refrigeration host, and the first condenser and the second condenser are connected in parallel.

[0051] In the embodiment of the present application, the first condenser and the second condenser are both connected between the outlet of the compressor and the inlet of the throttle valve of the same refrigeration host. The first condenser and the second condenser share a set of refrigeration hosts. The number of refrigeration hosts is small, which is conducive to saving space in the second box and reducing the operating cost of the refrigeration unit. The first condenser and the second condenser are connected in parallel, so that when one of the condensers fails, the other condenser can still work normally, which is conducive to improving the reliability of the operation of the entire refrigeration unit.

[0052] In one embodiment, there are multiple refrigeration hosts, the first condenser is connected between the outlet of the compressor of one of the refrigeration hosts and the inlet of the throttle valve, and the second condenser is connected between the outlet of the compressor of another refrigeration host and the inlet of the throttle valve.

[0053] In an embodiment of the present application, the first condenser is connected between the outlet of the compressor of one of the refrigeration hosts and the inlet of the throttle valve, and the second condenser is connected between the outlet of the compressor of the other refrigeration host and the inlet of the throttle valve, so that the cross-arranged first condenser and the second condenser are respectively connected to their respective corresponding refrigeration hosts, which facilitates the flexible configuration of the cooling capacity in different directions according to actual needs.

[0054] In one embodiment, the refrigeration unit further includes a fan, and each side of the condenser is correspondingly provided with the fan, and the box wall of the second box body has an opening for air intake and a vent corresponding to the fan.

[0055] In the embodiment of the present application, a fan is provided corresponding to each condenser, and the wall of the second box body has an opening for air intake and a vent corresponding to the fan, so that the heat dissipation airflow generated by the fan can enter the interior of the second box body from the opening of the second box body and flow through the condenser. The heat dissipation airflow generated by the fan can carry the heat of the refrigerant in the condenser and be discharged to the external environment through the vent of the second box body, which is beneficial to improve the heat dissipation efficiency of the condenser.

[0056] In one embodiment, the condenser on each side is located between the refrigeration host and the corresponding fan.

[0057] In an embodiment of the present application, each side condenser is located between the refrigeration main unit and the corresponding fan to reduce the obstruction of the heat dissipation airflow generated by the fan in the process of flowing through the condenser, so that the heat dissipation airflow generated by the fan can flow better through the condenser, which is beneficial to improving the heat dissipation efficiency of the condenser.

[0058] Utility Model Effect

[0059] The refrigeration unit of the embodiment of the present application is provided with a first condenser on the upper side of the refrigeration main unit, and a second condenser is provided on at least one side of the refrigeration main unit along a first direction intersecting the up and down directions, so that the upper side of the refrigeration main unit and at least one side of the refrigeration main unit along the first direction can dissipate heat, which is beneficial to increase the heat dissipation area of ​​the condenser, so that the refrigerant compressed by the compressor can dissipate heat in the condenser with a larger heat dissipation area, which is beneficial to improve the refrigeration capacity of the refrigeration unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0061] Figure 1This is a schematic diagram of the assembly of the energy storage bin and the heat dissipation bin in one embodiment of the present application;

[0062] Figure 2 This is a schematic diagram of the assembly of the electrical compartment and the heat dissipation compartment in one embodiment of the present application;

[0063] Figure 3 This is a schematic diagram of the structure of a refrigeration unit in one embodiment of the present application, in which openings and vents are not shown;

[0064] Figure 4 This is a schematic diagram of the side structure of a refrigeration unit along a first direction in an embodiment of the present application;

[0065] Figure 5 This is a schematic diagram of the top view of the refrigeration unit in an embodiment of the present application along the up and down direction, in which the first condenser is not shown;

[0066] Figure 6 This is a schematic diagram of the structure of a refrigeration unit in another embodiment of the present application, in which a liquid storage tank, an opening and a vent are not shown;

[0067] Figure 7 This is a schematic diagram of a structural arrangement in which a first condenser and a second condenser are connected in parallel in one embodiment of the present application;

[0068] Figure 8 This is a schematic diagram of the structural arrangement in which the first condenser and the second condenser operate independently in one embodiment of the present application.

[0069] Description of Reference Numerals

[0070] 100. Energy storage device; 1. Refrigeration unit; 11. Second housing; 12. Refrigeration host; 121. Compressor; 122. Throttle valve; 123. Heat exchanger; 124. Liquid storage tank; 13. Condenser; 131. First condenser; 132. Second condenser; 14. Fan; 2. First housing; 21. Energy storage compartment; 22. Heat dissipation compartment; 22b. Air outlet; 23. Electrical compartment; 3. Electric control cabinet; 4. Water circuit electrical components; 5. Battery device; 6. Water heater; 7. Water pump. DETAILED DESCRIPTION

[0071] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0072] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions.

[0073] In the description of the embodiments of the present application, the technical terms "first", "second", "third", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0074] Reference to "embodiments" herein 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 herein may be combined with other embodiments.

[0075] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0076] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0077] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and may be direct contact or contact through an intermediate medium layer. It may be contact with essentially no interaction force between the two contacting parties, or it may be contact with interaction force between the two contacting parties.

[0078] In the related art, the battery device generates heat under normal use, and the refrigeration unit is usually used to cool the battery device. The condenser integrated in the refrigeration unit is usually arranged on the side of the refrigeration host along the first direction, and the space on the upper side of the refrigeration host is not utilized. The heat dissipation area of ​​the condenser is small, which is not conducive to improving the refrigeration capacity of the refrigeration unit.

[0079] If a condenser can be arranged on the upper side of the refrigeration main unit and on at least one side of the refrigeration main unit along the first direction, the heat dissipation area of ​​the condenser can be effectively increased. The refrigeration unit of the embodiment of the present application is provided with a first condenser on the upper side of the refrigeration main unit and a second condenser on at least one side of the refrigeration main unit along the first direction, which is conducive to increasing the heat dissipation area of ​​the condenser, and then is conducive to improving the refrigeration capacity of the refrigeration unit.

[0080] The solution of the embodiment of the present application can be applied to, but is not limited to, a refrigeration unit 1 and an energy storage device 100 including the refrigeration unit 1 .

[0081] The embodiment of the present application provides an energy storage device 100, which includes a battery device 5, and the battery device 5 is used to store or provide electrical energy.

[0082] Illustratively, the battery device 5 may include a mounting box and battery cells located in the mounting box.

[0083] Exemplarily, the energy storage device 100 may be an energy storage container, an energy storage cabinet, or the like.

[0084] The battery cell includes a housing and an electrode assembly. The electrode assembly includes positive and negative electrode sheets and a separator. The housing can be a sealed structure or a non-sealed structure. As an example, the housing is a non-sealed structure, and the housing plays a role in protecting the electrode assembly. The battery cell also includes a sealing bag, which is located between the housing and the electrode assembly and is used to encapsulate the electrode assembly. Specifically, the sealing bag can be a bag-shaped insulating member or an aluminum-plastic film.

[0085] For the energy storage device 100 of the present embodiment, please refer to Figure 1 The energy storage device 100 also includes a first box body 2 and a refrigeration unit 1. The first box body 2 includes an energy storage bin 21 and a heat dissipation bin 22 that are isolated from each other. The battery device 5 is located in the energy storage bin 21, and the refrigeration unit 1 is located in the heat dissipation bin 22. The refrigeration unit 1 is at least used to cool the battery device 5.

[0086] The energy storage compartment 21 protects the battery device 5 , and the heat dissipation compartment 22 protects the refrigeration unit 1 .

[0087] The refrigeration unit 1 of the embodiment of the present application is used at least for cooling the battery device 5. Figure 1 , Figure 3 and Figure 6The refrigeration unit 1 includes a second box body 11, a refrigeration main unit 12 and a condenser 13. The refrigeration main unit 12 is located in the second box body 11, and the refrigeration main unit 12 includes a compressor 121. The condenser 13 is arranged on the upper side of the refrigeration main unit 12 and at least one side of the refrigeration main unit 12 along the first direction. The first direction is arranged crosswise with the up-down direction. The inlet of the condenser 13 is connected to the outlet of the compressor 121. The condenser 13 located on the upper side of the refrigeration main unit 12 is a first condenser 131, and the condenser 13 located on one side of the refrigeration main unit 12 along the first direction is a second condenser 132. The first condenser 131 and the second condenser 132 are used to receive the refrigerant output by the compressor 121.

[0088] For example, Figure 1 , Figure 3 and Figure 6 The direction indicated by R1 is the first direction.

[0089] For example, Figure 1~Figure 4 , Figure 6 The direction indicated by R3 is the up and down direction.

[0090] For example, see Figure 1 , Figure 3 and Figure 6 , the first direction is arranged perpendicular to the up-down direction.

[0091] For example, see Figure 1 , Figure 3 and Figure 6 , the first condenser 131 and the second condenser 132 are arranged vertically.

[0092] Exemplarily, the material of the second box body 11 is not limited, for example, it can be steel or aluminum.

[0093] Exemplarily, the compressor 121 is used to extract and compress the refrigerant, and the condenser 13 is used to dissipate heat of the refrigerant.

[0094] For example, see Figure 7 and Figure 8 The compressor 121 extracts refrigerant, the refrigerant enters from the inlet of the compressor 121, is compressed by the compressor 121, and the high-pressure refrigerant flows out from the outlet of the compressor 121, flows into the inlet of the condenser 13 and dissipates heat in the condenser 13.

[0095] Exemplarily, the inlet of the condenser 13 may be directly connected to the outlet of the compressor 121 .

[0096] For example, see Figure 7 and Figure 8 The inlet of the condenser 13 may also be indirectly connected to the outlet of the compressor 121 through a pipeline.

[0097] For example, see Figure 1 , Figure 3 and Figure 6 , the first condenser 131 is located above the second condenser 132 in the up-down direction.

[0098] For example, see Figure 1~Figure 4 , Figure 6 The refrigeration host 12 also includes a water circuit electrical component 4, which is at least used to control the start and stop of the compressor 121.

[0099] In the embodiment of the present application, a first condenser 131 is arranged on the upper side of the refrigeration main unit 12, and a second condenser 132 is arranged on at least one side of the refrigeration main unit 12 along a first direction intersecting the up and down directions, so that the upper side of the refrigeration main unit 12 and at least one side of the refrigeration main unit 12 along the first direction can dissipate heat, which is beneficial to increase the heat dissipation area of ​​the condenser 13, so that the refrigerant compressed by the compressor 121 can dissipate heat in the condenser 13 with a larger heat dissipation area, which is beneficial to improve the refrigeration capacity of the refrigeration unit 1.

[0100] In one embodiment, please refer to Figure 1 to Figure 6 The condenser 13 is located in the second box body 11 , and the condenser 13 is at least partially connected to the second box body 11 .

[0101] In the embodiment of the present application, the condenser 13 is located in the second box body 11 , and the condenser 13 is at least partially connected to the second box body 11 , which is beneficial for better protection of the condenser 13 by the second box body 11 , and further beneficial for extending the service life of the condenser 13 .

[0102] It is understandable that the positional relationship between the condenser 13 and the second housing 11 is not limited.

[0103] Exemplarily, the condenser 13 may also be located outside the second box 11 .

[0104] Exemplarily, the refrigeration unit 1 has a accommodating cavity, and the second box body 11, the first condenser 131 and the second condenser 132 are surrounded by the accommodating cavity to reduce the influence of the second box body 11 on the heat dissipation of the first condenser 131 and the second condenser 132, thereby further improving the refrigeration capacity of the refrigeration unit 1.

[0105] In one embodiment, please refer to Figure 5~Figure 6 The first condenser 131 is located above the second condenser 132 , and the first condenser 131 is arranged on opposite sides of the second condenser 132 along the first direction.

[0106] For example, see Figure 6 , a projection of the first condenser 131 along the first direction and a projection of the second condenser 132 along the first direction are staggered with each other.

[0107] For explanation, see Figure 6 , the first condenser 131 is arranged on two opposite sides of the second condenser 132 along the first direction, which means that the second condenser 132 is located within the range of the first condenser 131 along the first direction.

[0108] Exemplarily, a projection area of ​​the second condenser 132 along the up-down direction is located within a projection area of ​​the first condenser 131 along the up-down direction.

[0109] In the embodiment of the present application, the first condenser 131 is located above the second condenser 132, and the first condenser 131 is arranged on two opposite sides of the second condenser 132 along the first direction, so that the first condenser 131 can more fully utilize the space above the second condenser 132, and then the first condenser 131 located above can have a larger heat dissipation area, which is beneficial to improve the cooling capacity of the refrigeration unit 1.

[0110] It is understandable that the positional relationship between the first condenser 131 and the second condenser 132 is not limited. For example, the first condenser 131 may also be located below the second condenser 132.

[0111] In one embodiment, please refer to Figure 5~Figure 6 , two opposite sides of the first condenser 131 along the first direction are connected to the second box body 11.

[0112] For example, see Figure 5 The first condenser 131 is also connected to the second box body 11 on both opposite sides along a direction intersecting the first direction.

[0113] In the embodiment of the present application, the first condenser 131 is connected to the second box body 11 on both opposite sides along the first direction. On the one hand, it is beneficial to connect the first condenser 131 and the second box body 11 more firmly; on the other hand, it is beneficial to increase the size of the first condenser 131 in the first direction, so that the first condenser 131 can have a larger heat dissipation area, which is beneficial to improve the refrigeration capacity of the refrigeration unit 1.

[0114] It is understandable that the connection relationship between the two opposite sides of the first condenser 131 along the first direction and the second box 11 is not limited. For example, only one side of the two opposite sides of the first condenser 131 along the first direction is connected to the second box 11.

[0115] In one embodiment, please refer to Figure 3~Figure 5 The first condenser 131 is supported on the second condenser 132 along the first direction toward the second condenser 132 , and the first condenser 131 is connected to the second box body 11 along the first direction away from the second condenser 132 .

[0116] For example, see Figure 3 The projection area of ​​the first condenser 131 along the first direction does not overlap with the projection area of ​​the second condenser 132 along the first direction, but at least a partial contour of the projection area of ​​the first condenser 131 along the first direction contacts at least a partial contour of the projection area of ​​the second condenser 132 along the first direction.

[0117] In the embodiment of the present application, the first condenser 131 is supported on the second condenser 132 along the first direction toward the side of the second condenser 132, and the first condenser 131 along the first direction toward the side of the second condenser 132 is not connected to the corresponding box wall of the second box body 11, which facilitates the overall folding of the first condenser 131 and the second condenser 132, reduces the installation steps of the first condenser 131 and the second condenser 132, and is beneficial to improving the convenience of installation of the first condenser 131 and the second condenser 132.

[0118] In one embodiment, please refer to Figure 1~Figure 3 , Figure 6 , Figure 7 and Figure 8 The refrigeration host 12 also includes a throttle valve 122 and a heat exchanger 123. One of the heat exchange paths of the throttle valve 122 and the heat exchanger 123 is connected in sequence between the outlet of the condenser 13 and the inlet of the compressor 121. The fluid in the other heat exchange path of the heat exchanger 123 is used to cool at least the battery device 5.

[0119] The throttle valve 122 is a valve that controls the flow of the refrigerant by changing the throttling section or the throttling length.

[0120] The evaporator utilizes the property that liquid low-temperature refrigerant is easy to evaporate under low pressure, converts the liquid refrigerant into gaseous refrigerant and absorbs the heat generated by the battery device 5 to achieve the purpose of cooling.

[0121] For example, see Figure 7 and Figure 8 The outlet of the throttle valve 122 is connected to the inlet of the heat exchanger 123.

[0122] In the embodiment of the present application, the throttle valve 122 and the heat exchanger 123 are integrated in the refrigeration host 12, so that the refrigeration unit 1 in the energy storage device 100 can be disassembled and maintained as a whole, which is beneficial to improving the convenience of maintenance of the refrigeration unit 1.

[0123] In one embodiment, please refer to Figure 7 and Figure 8 The refrigeration host 12 also includes a liquid storage tank 124 for storing compressed liquid refrigerant. The liquid storage tank 124 is connected between the outlet of the condenser 13 and the inlet of the throttle valve 122.

[0124] For example, see Figure 7 and Figure 8 The outlet of the liquid storage tank 124 is connected to the inlet of the throttle valve 122 .

[0125] In an embodiment of the present application, the refrigeration host 12 also includes a liquid storage tank 124 for storing compressed liquid refrigerant. The liquid storage tank 124 is connected between the outlet of the condenser 13 and the inlet of the throttle valve 122, so that the liquid storage tank 124 can at least replenish refrigerant into the heat exchange flow path of the refrigeration host 12, which is beneficial to improving the working stability of the refrigeration unit 1.

[0126] In one embodiment, please refer to Figure 3~Figure 5 and Figure 7 The first condenser 131 and the second condenser 132 are both connected between the outlet of the compressor 121 and the inlet of the throttle valve 122 of the same refrigeration host 12, and the first condenser 131 and the second condenser 132 are connected in parallel.

[0127] For example, see Figure 7 The first condenser 131 and the second condenser 132 are both connected between the outlet of the compressor 121 and the inlet of the liquid storage tank 124 of the same refrigeration host 12, and the first condenser 131 and the second condenser 132 are connected in parallel.

[0128] For example, see Figure 7 The refrigeration unit 1 also includes a first circulation loop, in which the compressor 121, the first condenser 131, the liquid storage tank 124, the throttle valve 122 and the heat exchanger 123 are connected in series on the first circulation loop, the inlet end of the second condenser 132 and the outlet end of the second condenser 132 are respectively connected to the first circulation loop, and the first condenser 131 and the second condenser 132 are connected in parallel.

[0129] In the embodiment of the present application, the first condenser 131 and the second condenser 132 are both connected between the outlet of the compressor 121 and the inlet of the throttle valve 122 of the same refrigeration main unit 12. The first condenser 131 and the second condenser 132 share a set of refrigeration main units 12. The number of refrigeration main units 12 is small, which is conducive to saving space in the second box 11 and reducing the operating cost of the refrigeration unit 1. The first condenser 131 and the second condenser 132 are connected in parallel, so that when one of the condensers 13 fails, the other condenser 13 can still work normally, which is conducive to improving the reliability of the operation of the entire refrigeration unit 1.

[0130] It is understandable that the connection mode of the first condenser 131 and the second condenser 132 is not limited. For example, the first condenser 131 and the second condenser 132 may also be connected in series.

[0131] In one embodiment, please refer to Figure 5~Figure 6 and Figure 8There are multiple refrigeration hosts 12 , the first condenser 131 is connected between the outlet of the compressor 121 of one of the refrigeration hosts 12 and the inlet of the throttle valve 122 , and the second condenser 132 is connected between the outlet of the compressor 121 of another refrigeration host 12 and the inlet of the throttle valve 122 .

[0132] For example, see Figure 8 The first condenser 131 is connected between the outlet of the compressor 121 of one refrigeration host 12 and the inlet of the liquid storage tank 124 , and the second condenser 132 is connected between the outlet of the compressor 121 of the other refrigeration host 12 and the inlet of the liquid storage tank 124 .

[0133] For example, see Figure 8 The refrigeration unit 1 also includes a second circulation loop, the number of compressors 121, the number of throttle valves 122 and the number of heat exchangers 123 are all at least two, at least one compressor 121 is a first compressor 121, at least one throttle valve 122 is a first throttle valve 122, at least one heat exchanger 123 is a first heat exchanger 123, at least one compressor 121 is a second compressor 121, at least one throttle valve 122 is a second throttle valve 122, at least one heat exchanger 123 is a second heat exchanger 123, the first compressor 121, the first condenser 131, the first throttle valve 122 and the first heat exchanger 123 are connected in series to the first circulation loop, and the second compressor 121, the second condenser 132, the second throttle valve 122 and the second heat exchanger 123 are connected in series to the second circulation loop.

[0134] For example, see Figure 8 When the load of the refrigeration unit 1 is small, the first condenser 131 and the corresponding refrigeration host 12 can be operated alone, or the second condenser 132 and the corresponding refrigeration host 12 can be operated alone, so that the compressor 121 can operate at a high-efficiency speed point and improve the operating efficiency; when the load of the refrigeration unit 1 is large, the first condenser 131 and the corresponding refrigeration host 12 and the second condenser 132 and the corresponding refrigeration host 12 can be operated at the same time.

[0135] In the embodiment of the present application, the first condenser 131 is connected between the outlet of the compressor 121 of one of the refrigeration hosts 12 and the inlet of the throttle valve 122, and the second condenser 132 is connected between the outlet of the compressor 121 of the other refrigeration host 12 and the inlet of the throttle valve 122, so that the cross-arranged first condenser 131 and the second condenser 132 are respectively connected to their respective corresponding refrigeration hosts 12, which facilitates the flexible configuration of the cooling capacity in different directions according to actual needs.

[0136] In one embodiment, please refer to Figure 1 to Figure 8The refrigeration unit 1 further includes a fan 14 , and each side condenser 13 is correspondingly provided with a fan 14 . The wall of the second box body 11 has an opening for air intake and a vent corresponding to the fan 14 .

[0137] For example, see Figure 1 to Figure 8 The fan 14 is arranged on the box wall of the second box body 11 corresponding to the condenser 13.

[0138] Exemplarily, the opening is arranged on the box wall of the second box body 11 on one side along the second direction, and ventilation holes are arranged on the box wall of the second box body 11 close to the second condenser 132 along the first direction and on the box wall of the second box body 11 close to the first condenser 131 along the up and down directions.

[0139] In the embodiment of the present application, a fan 14 is provided corresponding to each side condenser 13, and the box wall of the second box body 11 has an opening for air intake and a vent corresponding to the fan 14, so that the heat dissipation airflow generated by the fan 14 can enter the interior of the second box body 11 from the opening of the second box body 11 and flow through the condenser 13. The heat dissipation airflow generated by the fan 14 can carry the heat of the refrigerant in the condenser 13 and be discharged to the external environment through the vent of the second box body 11, which is beneficial to improve the heat dissipation efficiency of the condenser 13.

[0140] It is understandable that the refrigeration unit 1 may not include the fan 14. Exemplarily, the condenser 13 may dissipate heat in a natural state.

[0141] In one embodiment, please refer to Figure 1 to Figure 8 The condenser 13 on each side is located between the refrigeration host 12 and the corresponding fan 14.

[0142] For example, see Figure 3 The first condenser 131 is located between the refrigeration host 12 and the corresponding fan 14 along the up-down direction, and the second condenser 132 is located between the refrigeration host 12 and the corresponding fan 14 along the first direction.

[0143] In the embodiment of the present application, the condenser 13 on each side is located between the refrigeration main unit 12 and the corresponding fan 14 to reduce the obstruction of the heat dissipation airflow generated by the fan 14 in the process of flowing through the condenser 13, so that the heat dissipation airflow generated by the fan 14 can flow better through the condenser 13, which is beneficial to improving the heat dissipation efficiency of the condenser 13.

[0144] It is understandable that the arrangement position of the fan 14 is not limited. For example, the fan 14 on each side can be located between the refrigeration host 12 and the corresponding condenser 13.

[0145] In one embodiment, please refer to Figure 1 and Figure 2The refrigeration unit 1 also includes a fan 14, and each side condenser 13 is correspondingly provided with a fan 14. The wall of the second box body 11 has an opening for air intake and a vent corresponding to the fan 14. The wall of the heat dissipation bin 22 has an air inlet and an air outlet 22b connected to the outer side of the first box body 2. The energy storage bin 21 and the heat dissipation bin 22 are arranged along the first direction. The heat dissipation bin 22 is formed with an air outlet 22b on the bin wall on the side away from the energy storage bin 21 and on the bin wall on the upper side of the heat dissipation bin 22.

[0146] Exemplarily, the air inlet of the heat dissipation bin 22 is arranged on the bin wall on one side of the heat dissipation bin 22 along the second direction, and the opening is arranged on the box wall on one side of the second box body 11 along the second direction, and the air inlet of the heat dissipation bin 22 corresponds one-to-one with the opening of the second box body 11.

[0147] Exemplarily, ventilation holes are provided on the box wall of the second box body 11 close to the second condenser 132 along the first direction and on the box wall of the second box body 11 close to the first condenser 131 along the up and down directions, and air outlets 22b are provided on the warehouse wall of the heat dissipation bin 22 facing away from the energy storage bin 21 and on the warehouse wall on the upper side of the heat dissipation bin 22, and the air outlets 22b of the heat dissipation bin 22 correspond one by one to the ventilation holes of the second box body 11.

[0148] In the embodiment of the present application, the energy storage bin 21 and the heat dissipation bin 22 are arranged along a first direction, and air outlets 22b are formed on the bin wall of the heat dissipation bin 22 on the side away from the energy storage bin 21 and on the bin wall on the upper side of the heat dissipation bin 22, so that the air outlets 22b of the heat dissipation bin 22 can correspond one-to-one with the ventilation holes of the second box body 11, and then the heat dissipation airflow carrying heat generated by the fan 14 can be directly discharged through the air outlet 22b of the heat dissipation bin 22, so that the refrigeration unit 1 can discharge the heat generated by the battery device 5 to the external environment.

[0149] In one embodiment, please refer to Figure 1 and Figure 2 The first box body 2 also includes an electrical compartment 23 isolated from the energy storage compartment 21 and the heat dissipation compartment 22 respectively. The energy storage device 100 also includes an electric control cabinet 3 located in the electrical compartment 23. The electric control cabinet 3 is at least used to control the battery device 5. The electrical compartment 23 and the heat dissipation compartment 22 are arranged along a second direction, and the second direction is arranged to cross the first direction and the up and down directions respectively and are not coplanar. The air inlet and the opening for air inlet on the box wall of the second box body 11 are both located on the side of the heat dissipation compartment 22 away from the electrical compartment 23.

[0150] For example, Figure 2 , Figure 4 and Figure 5 The direction indicated by R2 is the second direction.

[0151] It should be noted that the second direction is arranged to intersect with the first direction and the up-down direction and is not coplanar, which means that the first direction and the up-down direction constitute a reference plane, and the second direction is arranged to intersect with the reference plane.

[0152] Exemplarily, the first direction, the second direction and the up-down direction are arranged perpendicular to each other.

[0153] Exemplarily, the air inlet of the heat dissipation compartment 22 and the opening of the second box body 11 are both located along the second direction on a side of the heat dissipation compartment 22 away from the electrical compartment 23 .

[0154] In the embodiment of the present application, the electrical compartment 23 and the heat dissipation compartment 22 are arranged along the second direction, and the air inlet and the opening for air inlet on the box wall of the second box body 11 are both located on the side of the heat dissipation compartment 22 away from the electrical compartment 23, so that the heat dissipation airflow generated by the fan 14 can avoid the electrical compartment 23 when entering the heat dissipation compartment 22, so as to reduce the loss of the heat dissipation airflow, so that the heat dissipation airflow can better flow through the condenser 13, which is beneficial to improving the heat dissipation efficiency of the condenser 13.

[0155] In one embodiment, the energy storage device 100 may further include a thermal management component, which includes a temperature control fluid, a water pump 7 and a water heater 6. The water pump 7, the water heater 6 and another heat exchange flow path of the heat exchanger 123 constitute a temperature control loop to cool the battery device 5. The water pump 7 provides power for the temperature control fluid, so that the temperature control fluid can flow through the battery device 5 to carry the heat generated by the battery device 5 in normal working state to another heat exchange flow path of the heat exchanger 123, and discharge it to the external environment through the condenser 13.

[0156] The refrigeration unit 1 of the present embodiment of the present application is shown in FIG. Figure 1 to Figure 8, a first condenser 131 is arranged on the upper side of the refrigeration main unit 12, and a second condenser 132 is arranged on at least one side of the refrigeration main unit 12 along the first direction, so that the refrigeration unit 1 can make full use of the space above the refrigeration main unit 12 for heat dissipation, which is beneficial to increase the heat dissipation area of ​​the condenser 13, so that the refrigerant compressed by the compressor 121 can be radiated in the condenser 13 with a larger heat dissipation area, which is beneficial to improve the refrigeration capacity of the refrigeration unit 1. The condenser 13 is located in the second box 11 to protect the condenser 13. The first condenser 131 can be arranged across the two opposite sides of the second condenser 132 along the first direction, and the two opposite sides of the first condenser 131 along the first direction are connected to the second box 11 to increase the heat dissipation area of ​​the first condenser 131. One side of the first condenser 131 along the first direction can also be supported by the second condenser 132, and the other side is connected to the second box 11 to improve the convenience of installation of the first condenser 131 and the second condenser 132. The throttle valve 122 and the heat exchanger 123 are integrated in the refrigeration main unit 12, which is convenient for the maintenance of the refrigeration unit 1. The liquid storage tank 124 can at least replenish the refrigerant into the heat exchange flow path of the refrigeration main unit 12, which is conducive to improving the stability of the operation of the refrigeration unit 1. The first condenser 131 and the second condenser 132 can be connected to the same refrigeration main unit 12, which reduces the operating cost of the refrigeration unit 1 and improves the reliability of the operation of the entire refrigeration unit 1. The first condenser 131 and the second condenser 132 can also operate independently and be connected to different refrigeration main units 12 respectively, which is convenient for flexibly configuring the cooling capacity in different directions according to actual needs. The air inlet of the heat dissipation chamber 22 corresponds to the opening of the second box body 11 one by one, and the air outlet 22b of the heat dissipation chamber 22 corresponds to the vent of the second box body 11 one by one, which is convenient for the heat dissipation of the refrigeration unit 1. A fan 14 is correspondingly provided on each side of the condenser 13, and the condenser 13 is located between the refrigeration main unit 12 and the corresponding fan 14, which is convenient for improving the heat dissipation efficiency of the condenser 13. The air inlet and the opening for air intake on the wall of the second box body 11 are both located on the side of the heat dissipation compartment 22 away from the electrical compartment 23, so that the heat dissipation airflow generated by the fan 14 can avoid the electrical compartment 23 to reduce the loss of the heat dissipation airflow. The energy storage device 100 may also include a thermal management component, which includes a temperature control fluid, a water pump 7 and a water heater 6 to remove the heat generated by the battery device 5 located in the energy storage compartment 21 under normal working conditions.

[0157] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way.

Claims

1. An energy storage device, characterized in that: include: The first box body includes an energy storage compartment and a heat dissipation compartment that are isolated from each other; A battery device, located in the energy storage compartment; A refrigeration unit is located in the heat dissipation compartment, and the refrigeration unit is at least used to cool the battery device. The refrigeration unit includes a second box, a refrigeration main unit and a condenser. The refrigeration main unit is located in the second box. The refrigeration main unit includes a compressor. The condenser is arranged on the upper side of the refrigeration main unit and on at least one side of the refrigeration main unit along a first direction. The first direction is arranged crosswise with the up and down directions. The inlet of the condenser is connected to the outlet of the compressor. The condenser located on the upper side of the refrigeration main unit is a first condenser, and the condenser located on one side of the refrigeration main unit along the first direction is a second condenser. The first condenser and the second condenser are used to receive the refrigerant output by the compressor.

2. The energy storage device according to claim 1, characterized in that: The condenser is located in the second box, and the condenser is at least partially connected to the second box.

3. The energy storage device according to claim 1, characterized in that: The first condenser is located above the second condenser, and the first condenser is arranged across two opposite sides of the second condenser along the first direction.

4. The energy storage device according to claim 3, characterized in that: Two opposite sides of the first condenser along the first direction are connected to the second box.

5. The energy storage device according to claim 1, characterized in that: A side of the first condenser facing the second condenser along the first direction is supported by the second condenser, and a side of the first condenser facing away from the second condenser along the first direction is connected to the second box.

6. The energy storage device according to any one of claims 1 to 5, characterized in that: The refrigeration host also includes a throttle valve and a heat exchanger, wherein one of the heat exchange paths of the throttle valve and the heat exchanger is connected in sequence between the outlet of the condenser and the inlet of the compressor, and the fluid in the other heat exchange path of the heat exchanger is used at least to cool the battery device.

7. The energy storage device according to claim 6, characterized in that: The refrigeration host also includes a liquid storage tank for storing compressed liquid refrigerant, and the liquid storage tank is connected between the outlet of the condenser and the inlet of the throttle valve.

8. The energy storage device according to claim 6, characterized in that: The first condenser and the second condenser are both connected between the outlet of the compressor of the same refrigeration host and the inlet of the throttle valve, and the first condenser and the second condenser are connected in parallel.

9. The energy storage device according to claim 6, characterized in that: There are multiple refrigeration hosts, the first condenser is connected between the outlet of the compressor of one of the refrigeration hosts and the inlet of the throttle valve, and the second condenser is connected between the outlet of the compressor of another refrigeration host and the inlet of the throttle valve.

10. The energy storage device according to any one of claims 1 to 5, characterized in that: The refrigeration unit also includes a fan, and each side of the condenser is correspondingly provided with the fan, and the box wall of the second box body is provided with an opening for air intake and a vent corresponding to the fan.

11. The energy storage device according to claim 10, characterized in that: The condenser on each side is located between the refrigeration host and the corresponding fan.

12. The energy storage device according to claim 10, characterized in that: The heat dissipation bin has an air inlet and an air outlet on its wall which are connected to the outer side of the first box body. The energy storage bin and the heat dissipation bin are arranged along the first direction. The air outlet is formed on the bin wall of the heat dissipation bin on the side away from the energy storage bin and on the bin wall on the upper side of the heat dissipation bin.

13. The energy storage device according to claim 12, characterized in that: The first box body also includes an electrical compartment isolated from the energy storage compartment and the heat dissipation compartment respectively, and the energy storage device also includes an electric control cabinet located in the electrical compartment, and the electric control cabinet is at least used to control the battery device. The electrical compartment and the heat dissipation compartment are arranged along a second direction, and the second direction is respectively arranged to cross the first direction and the up and down directions and are not coplanar, and the air inlet and the opening for air intake on the wall of the second box body are both located on the side of the heat dissipation compartment away from the electrical compartment.

14. A refrigeration unit, characterized in that: include: The second box; A refrigeration host is located in the second box, and the refrigeration host includes a compressor; The condenser is arranged on the upper side of the refrigeration main unit and on at least one side of the refrigeration main unit along a first direction. The first direction is arranged crosswise with the up and down directions. The inlet of the condenser is connected to the outlet of the compressor. The condenser located on the upper side of the refrigeration main unit is the first condenser, and the condenser located on one side of the refrigeration main unit along the first direction is the second condenser. The first condenser and the second condenser are used to receive the refrigerant output by the compressor.

15. The refrigeration unit according to claim 14, characterized in that: The condenser is located in the second box, and the condenser is at least partially connected to the second box.

16. The refrigeration unit according to claim 14, characterized in that: The first condenser is located above the second condenser, and the first condenser is arranged across two opposite sides of the second condenser along the first direction.

17. The refrigeration unit according to claim 16, characterized in that: Two opposite sides of the first condenser along the first direction are connected to the second box.

18. The refrigeration unit according to claim 14, characterized in that: A side of the first condenser facing the second condenser along the first direction is supported by the second condenser, and a side of the first condenser facing away from the second condenser along the first direction is connected to the second box.

19. The refrigeration unit according to any one of claims 14 to 18, characterized in that: The refrigeration host also includes a throttle valve and a heat exchanger, wherein one of the heat exchange paths of the throttle valve and the heat exchanger is sequentially connected between the outlet of the condenser and the inlet of the compressor, and the fluid in the other heat exchange path of the heat exchanger is used at least to cool the battery device.

20. The refrigeration unit according to claim 19, characterized in that: The refrigeration host also includes a liquid storage tank for storing compressed liquid refrigerant, and the liquid storage tank is connected between the outlet of the condenser and the inlet of the throttle valve.

21. The refrigeration unit according to claim 19, characterized in that: The first condenser and the second condenser are both connected between the outlet of the compressor of the same refrigeration host and the inlet of the throttle valve, and the first condenser and the second condenser are connected in parallel.

22. The refrigeration unit according to claim 19, characterized in that: There are multiple refrigeration hosts, the first condenser is connected between the outlet of the compressor of one of the refrigeration hosts and the inlet of the throttle valve, and the second condenser is connected between the outlet of the compressor of another refrigeration host and the inlet of the throttle valve.

23. The refrigeration unit according to any one of claims 14 to 18, characterized in that: The refrigeration unit also includes a fan, and each side of the condenser is correspondingly provided with the fan, and the box wall of the second box body is provided with an opening for air intake and a vent corresponding to the fan.

24. The refrigeration unit according to claim 23, characterized in that: The condenser on each side is located between the refrigeration host and the corresponding fan.

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