Temperature and humidity adjusting system and energy storage equipment

Abstract

The utility model provides a temperature and humidity adjusting system and energy storage equipment, and relates to the technical field of energy storage equipment, the temperature and humidity adjusting system comprises a liquid cooling unit, a dehumidification device and an evaporator, the evaporator is used for being arranged in an electrical bin of the energy storage equipment, and the evaporator is connected with the liquid cooling unit; the liquid cooling unit is used for being connected with a battery in a battery bin of the energy storage equipment, the dehumidification device is used for being arranged in a high-voltage box in the battery bin, and the dehumidification device is connected with the liquid cooling unit. Through the structural arrangement, cooling and dehumidification of the electrical bin, the battery bin and the high-voltage box can be achieved only through one set of adjusting system, namely, adjustment of the temperature and the humidity can be achieved, cost is saved, the installation space of the temperature and humidity adjusting system is saved, and then the volume energy density of the energy storage equipment is improved.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage devices, and in particular to a temperature and humidity control system and an energy storage device. Background Art

[0002] Temperature and humidity are important factors that affect the proper functioning of energy storage equipment. For example, excessively high temperatures in the battery compartment of an energy storage container will not only reduce battery life and efficiency, but may also cause thermal runaway, posing a serious safety hazard. Furthermore, the battery compartment typically houses a high-voltage box that operates under high-rate charge and discharge conditions. The high-voltage box and batteries must operate in a dry environment. Excessive humidity can reduce the battery's insulation resistance and, in severe cases, cause a short circuit. Furthermore, energy storage equipment typically includes an electrical compartment, which typically houses a power distribution cabinet, backup power supply, and busbars, and also requires cooling and dehumidification.

[0003] In the prior art, the temperature and humidity regulation of the battery compartment, electrical compartment, and high-voltage box in the battery compartment of the energy storage device are generally achieved by relying on independent adjustment systems, which makes the overall cost high and also affects the overall volume energy density of the energy storage device. Utility Model Content

[0004] One or more embodiments of the present application are intended to solve or at least partially alleviate the current problem of how to reduce the cost of the temperature and humidity regulation system of an energy storage device and increase its volume energy density.

[0005] One or more embodiments of the present application provide a temperature and humidity control system, including a liquid cooling unit, a dehumidification device and an evaporator, wherein the evaporator is used to be arranged in an electrical compartment of an energy storage device, and the evaporator is connected to the liquid cooling unit, the liquid cooling unit is used to be connected to the battery in the battery compartment of the energy storage device, and the dehumidification device is used to be arranged in a high-voltage box in the battery compartment, and the dehumidification device is connected to the liquid cooling unit.

[0006] Optionally, the temperature and humidity control system further includes a wind heating device, which is used to be arranged in the electrical compartment and located on the side of the evaporator.

[0007] Optionally, the wind heating device includes a PTC wind heating heater and a first fan, and the first fan and the PTC wind heating heater are located on the same side of the evaporator.

[0008] Optionally, the dehumidification device includes a first heat exchanger and a second fan, the second fan is connected to the high-pressure box and is located on the side of the first heat exchanger, and the first heat exchanger is connected to the liquid cooling unit.

[0009] Optionally, the dehumidification device also includes an air inlet and an air outlet, and the air inlet and the air outlet are respectively located on opposite sides of the first heat exchanger, and the air inlet and the air outlet are opened in the box body of the high-pressure box, and the second fan is located at the air inlet or the air outlet.

[0010] Optionally, the temperature and humidity control system further includes a second heat exchanger, which is disposed in the high-pressure box and connected to the first heat exchanger.

[0011] Optionally, the liquid cooling unit includes a compressor, a condenser and a third heat exchanger connected in sequence, the third heat exchanger is connected to the battery and the dehumidification device respectively, and the compressor and the condenser are connected to both ends of the evaporator respectively.

[0012] Optionally, the liquid cooling unit further includes a PTC water-heating heater, and the PTC water-heating heater is connected between the third heat exchanger and the battery.

[0013] Optionally, the liquid cooling unit further includes a first electronic expansion valve and a second electronic expansion valve, wherein the first electronic expansion valve is connected between the evaporator and the condenser, and the second electronic expansion valve is connected between the third heat exchanger and the condenser.

[0014] Compared with the existing technology, the temperature and humidity control system provided by this application has but is not limited to the following technical effects:

[0015] The temperature and humidity control system provided in the present application can be applied to the temperature and humidity control of energy storage equipment. By providing a liquid cooling unit and connecting the liquid cooling unit to the batteries in the battery compartment of the energy storage equipment, the heat dissipation plate of the energy storage equipment can be connected to form a coolant circulation, thereby cooling the battery compartment. At the same time, by arranging a dehumidification device in the high-voltage box and connecting it to the liquid cooling unit, dehumidification can be performed through the coolant circulation of the liquid cooling unit, for example, by the principle of condensation drainage, that is, dehumidification of the high-voltage box and the battery compartment, thereby achieving humidity control. By arranging an evaporator in the electrical compartment of the energy storage equipment and connecting it to the liquid cooling unit, the evaporator can cool the electrical compartment and also dehumidify the electrical compartment through the principle of condensation drainage, for example, when the hot and humid air in the electrical compartment encounters the cooler tube wall of the evaporator and other structures, condensation drainage and dehumidification are carried out. With the above-mentioned structural setting, only one set of control system is needed to achieve cooling and dehumidification of the electrical compartment, battery compartment and high-voltage box, that is, temperature and humidity control, which not only saves costs but also saves the installation space of the temperature and humidity control system, thereby improving the volume energy density of the energy storage equipment.

[0016] In addition, one or more embodiments of the present application provide an energy storage device, including the temperature and humidity adjustment system as described above.

[0017] The advantages of the energy storage device described in this application and the temperature and humidity control system over the prior art are the same and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, a brief introduction to the drawings of the embodiments will be given below. Obviously, the drawings described below only relate to some embodiments of the present application, and are not intended to limit the present application.

[0019] Figure 1 This is a schematic diagram of the principle of the temperature and humidity control system according to an embodiment of the present application;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the high-voltage box in the embodiment of the present application. Figure 1 ;

[0021] Figure 3 Schematic diagram of the three-dimensional structure of the high-voltage box in the embodiment of the present application Figure 2 .

[0022] Description of reference numerals:

[0023] 11-compressor, 12-third heat exchanger, 13-PTC water heater, 14-condenser, 15-fourth fan, 16-water pump, 17-first electronic expansion valve, 18-second electronic expansion valve, 20-dehumidification device, 21-first heat exchanger, 22-second fan, 23-air inlet, 24-air outlet, 30-evaporator, 41-PTC air heater, 42-first fan, 51-second heat exchanger, 52-third fan, 01-battery, 02-high-voltage box. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings showing multiple embodiments of this application. It should be understood that the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments described in this application, all other embodiments obtained by ordinary technicians in this field without expending creative work will fall within the scope of protection of this application.

[0025] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by one skilled in the art to which this application belongs. The terms used in this application's specification and claims are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including," "comprising," "having," "having," "containing," and "containing" in the specification and claims of this application and the accompanying drawings are open-ended terms. Thus, "including," "comprising," and "having" refer, for example, to a method or apparatus having one or more steps or elements, but are not limited to having only those one or more elements. The terms "first," "second," and "first" in the specification and claims of this application and the accompanying drawings are used to distinguish between different objects, not to describe a specific order or priority. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance or to implicitly specify the number of the technical features indicated. Thus, a feature designated "first" or "second" may explicitly or implicitly include one or more of the features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0026] In the description of the present application, it should be understood that the terms "center", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "attached" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0028] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it refer to independent or alternative embodiments that are mutually exclusive with other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0029] As mentioned above, it should be emphasized that when the term "include / comprises" is used in this specification, it is used to clearly indicate the presence of the features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps, components or groups of features, integers, steps, components. As used in this application, the singular forms "a", "an" and "the" also include the plural forms, unless the context clearly indicates otherwise.

[0030] The terms "a" and "an" used in this specification may mean one, but may also have the same meaning as "at least one" or "one or more." The term "about" generally means plus or minus 10%, or more specifically, plus or minus 5%, of the referenced value. The term "or" used in the claims means "and / or" unless it is expressly stated that it refers only to alternatives.

[0031] The term "and / or" in this application simply describes an association between related objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0032] One or more embodiments of the present application provide a temperature and humidity control system. Figure 1 This is an embodiment of the temperature and humidity control system provided in this application.

[0033] like Figure 1 As shown, the temperature and humidity control system includes a liquid cooling unit, a dehumidification device 20 and an evaporator 30. The evaporator 30 is used to be arranged in the electrical compartment of the energy storage device, and the evaporator 30 is connected to the liquid cooling unit. The liquid cooling unit is used to be connected to the battery 01 in the battery compartment of the energy storage device. The dehumidification device 20 is used to be arranged in the high-voltage box 02 in the battery compartment, and the dehumidification device 20 is connected to the liquid cooling unit.

[0034] In some embodiments, the liquid cooling unit is arranged in a position near the battery compartment and the electrical compartment in the energy storage device. The liquid cooling unit includes a compressor 11, a heat exchange device and a water pump 16. The compressor 11, the heat exchange device and the water pump 16 are connected in sequence to form a circulation of the coolant. The heat exchange device is, for example, a third heat exchanger 12. The liquid cooling unit is respectively connected to the battery 01 in the battery compartment and the evaporator 30 in the electrical compartment to form a circulation of the coolant, thereby cooling the battery compartment and the electrical compartment to achieve temperature regulation. At the same time, the evaporator 30 can be used as a dehumidification structure to dehumidify the electrical compartment, that is, humidity regulation. For example, the high-temperature and humid air in the electrical compartment will condense into liquid water when it contacts the cooler pipe wall of the evaporator 30. The liquid water can be evaporated, for example The drainage pipe of the device 30 is discharged to the outside of the electrical compartment, that is, the electrical compartment is dehumidified by condensation drainage. At the same time, the dehumidification device 20 can also dehumidify the high-voltage box 02 and the battery compartment in the battery compartment through the same condensation drainage principle, that is, humidity regulation. It should be noted that the high-voltage box 02 is located in the battery compartment and is connected to the space of the battery compartment. Dehumidification can be performed at the same time, and the battery 01 can be cooled, that is, the battery compartment and the high-voltage box 02 are cooled, that is, temperature regulation is performed at the same time. At the same time, the battery compartment includes multiple batteries 01 and multiple high-voltage boxes 02. After the multiple batteries 01 and the multiple high-voltage boxes 02 are connected to the liquid cooling unit respectively, a parallel circulation loop is formed, and the temperature and humidity regulation effect is better.

[0035] In at least one embodiment, the temperature and humidity control system can be applied to the temperature and humidity control of the energy storage device. By setting up a liquid cooling unit and connecting it to the battery 01 in the battery compartment of the energy storage device, the heat sink of the energy storage device can be connected to form a circulation of coolant, thereby cooling the battery compartment. It should be noted here that the heat sink is the structure of the energy storage device itself, and generally dissipates heat and cools the battery compartment and the battery 01 through a liquid cooling cycle. It can be set at a position around the battery 01 or at an interval between the batteries 01. That is to say, the heat sink can be the heat dissipation structure of the energy storage device itself, or it can be the heat dissipation structure of the battery pack or battery cluster in the energy storage device, and it can be the heat dissipation structure of the battery 01 itself. No specific limitation is made here. At the same time, by setting the dehumidification device 20 in the high-pressure box 02 and connecting it to the liquid When connected to a cooling unit, the coolant of the liquid cooling unit can be circulated to perform dehumidification, for example, by the principle of condensation drainage, that is, the high-voltage box 02 and the battery compartment can be dehumidified, thereby achieving humidity regulation, and by setting the evaporator 30 in the electrical compartment of the energy storage device and connecting it to the liquid cooling unit, the evaporator 30 can cool the electrical compartment, and can also dehumidify the electrical compartment by, for example, the principle of condensation drainage, such as when the hot and humid air in the electrical compartment encounters the cooler pipe wall of the evaporator 30 and other structures for condensation drainage and dehumidification. Through the above-mentioned structural setting, only one set of adjustment system is needed to achieve cooling and dehumidification of the electrical compartment, battery compartment and high-voltage box, that is, temperature and humidity regulation, which not only saves costs, but also saves the installation space of the temperature and humidity adjustment system, thereby improving the volume energy density of the energy storage device.

[0036] Alternatively, as Figure 1 As shown, the temperature and humidity control system further includes a wind heating device, which is used to be arranged in the electrical compartment and located on the side of the evaporator 30.

[0037] In some embodiments, if the backup power supply in the electrical warehouse encounters low temperatures, its working performance will be affected, that is, sometimes the electrical warehouse will also need to be heated. The wind heating device is, for example, to conduct high temperature to the electrical warehouse environment through wind after electric heating, thereby realizing wind heat conduction heating, and then heating the components in the electrical warehouse that need heating, such as the backup power supply.

[0038] In at least one embodiment, by arranging a wind heating device in the electrical compartment, the environment in the electrical compartment can be heated by wind heat conduction, and then the components with heating requirements, such as the backup power supply in the electrical compartment, can be heated to ensure their optimal working conditions. At the same time, the temperature adjustment range is also improved, and the overall work quality and efficiency are improved. At the same time, by arranging the wind heating device on the side of the evaporator 30, it is also beneficial to the air flow in the electrical compartment, that is, it is beneficial for the hot and humid air to come into contact with the evaporator 30 faster and more comprehensively, thereby improving the dehumidification effect.

[0039] Alternatively, as Figure 1 As shown, the wind heating device includes a PTC wind heating heater 41 and a first fan 42 , and the first fan 42 and the PTC wind heating heater 41 are located on the same side of the evaporator 30 .

[0040] In some embodiments, the first fan 42, the PTC air-heating heater 41 and the evaporator 30 are installed in the electrical compartment in sequence, and the air outlet of the first fan 42 is set in a direction away from the PTC air-heating heater 41, that is, the air in the electrical compartment is first dehumidified by the evaporator 30, and then heated by the PTC air-heating heater for circulation, which is more conducive to heating and dehumidification in the electrical compartment, so as to provide a more favorable working environment for the components in the electrical compartment.

[0041] In at least one embodiment, the wind heating device is set to the structural form of a PTC wind heating heater 41 and a first fan 42, and the first fan 42 and the PTC wind heating heater 41 are set on the same side of the evaporator 30, so that when heating is required in the electrical compartment, the ambient air can be heated by the PTC wind heating heater 41, and the high-temperature air can be circulated by the first fan 42. At the same time, effective air circulation is provided for dehumidification work, thereby improving the dehumidification effect. Moreover, when cooling is required in the electrical compartment, the PTC wind heating heater 41 can be turned off, and the evaporator 30 and the first fan 41 can work at the same time to improve the circulation of cooling air, so that the electrical compartment can be quickly cooled, thereby improving the efficiency and effect of regulating the temperature and humidity in the electrical compartment.

[0042] Alternatively, as Figures 1 to 3 As shown, the dehumidification device 20 includes a first heat exchanger 21 and a second fan 22. The second fan 22 is connected to the high-pressure box 02 and is located on the side of the first heat exchanger 21. The first heat exchanger 21 is connected to the liquid cooling unit.

[0043] In some embodiments, the first heat exchanger 21 and the second fan 22 are both arranged on the same side wall inside the high-pressure box 02, or a partition is provided inside the high-pressure box 02 to form an air duct for installing the first heat exchanger 21 and the second fan 22, which is beneficial to the circulation of air during the dehumidification process and is beneficial to improving the dehumidification effect.

[0044] In at least one embodiment, by setting the dehumidification device 20 as a structure of a first heat exchanger 21 and a second fan 22, and installing the second fan 22 in the high-pressure box 02 and located on the side of the first heat exchanger 21, the first heat exchanger 21 is connected to the liquid cooling unit to form a circulation loop of the coolant, and the high-pressure box 02 and the battery compartment are dehumidified by the condensation drainage of the first heat exchanger 21. At the same time, the effective circulation of the air is realized by the operation of the second fan 22, thereby improving the dehumidification effect.

[0045] Alternatively, as Figure 2 and Figure 3 As shown, the dehumidification device also includes an air inlet 23 and an air outlet 24, and the air inlet 23 and the air outlet 24 are respectively located on opposite sides of the first heat exchanger 21, and the air inlet 23 and the air outlet 24 are opened in the box body of the high-pressure box 02, and the second fan 22 is located at the air inlet 23 or the air outlet 24.

[0046] In some embodiments, the air inlet 23 and the air outlet 24 are opened on the same side wall of the box body of the high-pressure box 02. At the same time, the first heat exchanger 21 and the second fan 22 are also installed on the same side. The air inlet 23 and the air outlet 24 are respectively connected to the internal space of the battery compartment to realize the overall air circulation flow in the battery compartment. Preferably, the second fan 22 is installed at one of the air inlet 23 and the air outlet 24, for example Figure 2 In the embodiment, the second fan 22 is installed at the air outlet 24.

[0047] In at least one embodiment, an air inlet 23 and an air outlet 24 are opened in the body of the high-voltage box 02, and are located on opposite sides of the first heat exchanger 21, respectively, and the second fan 22 is installed at the air inlet 23 or the air outlet 24, so as to facilitate the circulation of ambient air in the battery compartment and between the battery compartment and the high-voltage box, so as to improve the dehumidification effect and efficiency.

[0048] Alternatively, as Figure 2 and Figure 3 As shown, the temperature and humidity control system further includes a second heat exchanger 51 , which is disposed in the high-pressure box 02 and connected to the first heat exchanger 21 .

[0049] In some embodiments, a third fan 52 is further provided in the high-pressure box 02, and is arranged in a one-to-one correspondence with the second heat exchanger 51, which is beneficial to improving the circulation flow of the ambient air in the high-pressure box 02, that is, it is beneficial to improving the cooling effect and efficiency in the high-pressure box 02. At the same time, the second heat exchanger 51 can be installed on the partition that forms the air duct for installing the first heat exchanger 21 and the second fan 22. The partition can be provided with a mounting port and other structures for installing the second heat exchanger 51, so that the fins of the second heat exchanger 51 are located on one side of the partition and face the inside of the high-pressure box 02. The water inlet and outlet of the second heat exchanger 51 are located on the other side of the partition, that is, located in the above-mentioned air duct, which makes it easier for the second heat exchanger 51 to form a series connection structure with the first heat exchanger 21, facilitates installation and integrated setting, and is more convenient for adjusting temperature and humidity.

[0050] In at least one embodiment, by arranging a second heat exchanger 51 in the high-pressure box 02 and connecting it to the first heat exchanger 21, a series coolant circulation loop can be formed through, for example, a pipeline connection, that is, the first heat exchanger 21 is connected through a liquid cooling unit for dehumidification, and the coolant then flows to the second heat exchanger 51 to perform temperature regulation work of cooling and lowering the temperature, thereby more effectively and accurately regulating the temperature in the high-pressure box 02.

[0051] Alternatively, as Figure 1 As shown, the liquid cooling unit includes a compressor 11, a condenser 14 and a third heat exchanger 12 connected in sequence, the third heat exchanger 12 is respectively connected to the battery 01 and the dehumidification device 20, and the compressor 11 and the condenser 14 are respectively connected to the two ends of the evaporator 30.

[0052] In some embodiments, the third heat exchanger 12 is a plate heat exchanger, which saves space, improves the overall volume energy density, and has better heat exchange efficiency. At the same time, the liquid cooling unit also includes a fourth fan 15, which is installed on the side of the condenser 14 to provide the condenser 14 with the wind force required for heat dissipation, so as to form coolant more efficiently and improve work efficiency.

[0053] In at least one embodiment, by setting the liquid cooling unit as a circulation structure of a compressor 11, a condenser 14 and a third heat exchanger 12 connected in sequence, the formation of the coolant in the circulation system is realized by the connection and cooperation between the compressor 11 and the condenser 14, and the compressor 11 and the condenser 14 are respectively connected to the two ends of the evaporator 30, so that the cooling and dehumidification functions of the evaporator 30 can be realized. At the same time, by connecting the third heat exchanger 12 to the condenser 14, and by connecting the third heat exchanger 12 to the battery 01 and the dehumidification device 20 respectively, the coolant flows through the battery 01 and the dehumidification device 20 respectively through the third heat exchanger 12. The third heat exchanger 12 can timely and effectively exchange heat and cool the coolant flowing through the battery 01 and the dehumidification device 20, thereby improving the heat exchange efficiency, thereby improving the overall temperature and humidity regulation effect and efficiency.

[0054] Alternatively, as Figure 1 As shown, the liquid cooling unit further includes a PTC water-heating heater 13 , which is connected between the third heat exchanger 12 and the battery 01 .

[0055] In some embodiments, the PTC water heater 13 is connected to a pipeline near the outlet end of the third heat exchanger 12, or the inlet end. It is only necessary to uniformly heat the circulating liquid passing through the third heat exchanger 12, and then the battery 01 and the high-voltage box 02 can be heated at the same time, thereby improving work efficiency.

[0056] It should be noted that the third heat exchanger 12 can regulate cooling heat exchange and heating heat exchange according to actual needs. That is, when the battery 01 or the high-voltage box 02 needs to be cooled, the third heat exchanger 12 cooperates with the compressor 11 and the condenser 14 to achieve cooling. When the temperature in the battery compartment is low, which affects the working conditions of the battery 01 or the high-voltage box 02, it is necessary to heat the battery compartment. The third heat exchanger 12 can be regulated to cooperate with the PTC water-heating heater 13 to achieve heating of the circulating fluid, and then heat the battery 01 in the battery compartment. At the same time, the PTC water-heating heater 13 can also be connected to the second heat exchanger 51 in the high-voltage box 02, which can also heat the high-voltage box 02, thereby improving the temperature regulation range and effectively meeting various working environments.

[0057] In at least one embodiment, by connecting a PTC hydrothermal heater 13 between the third heat exchanger 12 and the battery 01, when the battery 01 needs to be heated, the circulating fluid can be heated by the PTC hydrothermal heater 13, thereby heating the battery 01, providing a more favorable working environment for the battery 01 and improving the overall working efficiency and effect.

[0058] Alternatively, as Figure 1As shown, the liquid cooling unit further includes a first electronic expansion valve 17 and a second electronic expansion valve 18. The first electronic expansion valve 17 is connected between the evaporator 30 and the condenser 14, and the second electronic expansion valve 1 is connected between the third heat exchanger 12 and the condenser.

[0059] In some embodiments, the first electronic expansion valve 17 and the second electronic expansion valve 18 have the same structure and model, which facilitates procurement and installation.

[0060] In at least one embodiment, by providing a first electronic expansion valve 17 and a second electronic expansion valve 18, and connecting them between the evaporator 30 and the condenser 14, and between the third heat exchanger 12 and the condenser 14, respectively, the flow of the circulating fluid flowing through the evaporator 30 and the third heat exchanger 12 can be accurately adjusted respectively, thereby making it possible to accurately adjust the working conditions such as the temperature in the electrical compartment, the battery compartment and the high-voltage box in real time, thereby improving the effect of temperature and humidity regulation.

[0061] In addition, one or more embodiments of the present application provide an energy storage device, including the temperature and humidity adjustment system as described above.

[0062] In some embodiments, the energy storage device further includes an electrical compartment and a battery compartment, wherein a plurality of battery clusters 01 are arranged in parallel in the battery compartment, and a plurality of high-voltage boxes 02 are arranged in parallel in the battery compartment.

[0063] In at least one embodiment, the energy storage device may be an energy storage cabinet or an energy storage container. Of course, the energy storage device may also be other devices equipped with the temperature and humidity control system described in this application, and this is not limited here. The energy storage device described in this application has the same advantages as the temperature and humidity control system over the prior art, and assembling the temperature and humidity control system on the corresponding energy storage device is a common technical means that should be understood by ordinary technicians in this field and will not be described in detail here.

[0064] The above describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments. The above-described embodiments and the specification merely illustrate the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A temperature and humidity control system, characterized in that: It includes a liquid cooling unit, a dehumidification device and an evaporator. The evaporator is used to be arranged in the electrical compartment of the energy storage equipment, and the evaporator is connected to the liquid cooling unit. The liquid cooling unit is used to be connected to the battery in the battery compartment of the energy storage equipment. The dehumidification device is used to be arranged in the high-voltage box in the battery compartment, and the dehumidification device is connected to the liquid cooling unit.

2. The temperature and humidity control system according to claim 1, characterized in that: The temperature and humidity adjustment system further includes a wind heating device, which is used to be arranged in the electrical compartment and located on the side of the evaporator.

3. The temperature and humidity control system according to claim 2, characterized in that: The wind heating device comprises a PTC wind heating heater and a first fan, wherein the first fan and the PTC wind heating heater are located on the same side of the evaporator.

4. The temperature and humidity control system according to claim 1, characterized in that: The dehumidification device includes a first heat exchanger and a second fan, the second fan is connected to the high-pressure box and is located on the side of the first heat exchanger, and the first heat exchanger is connected to the liquid cooling unit.

5. The temperature and humidity control system according to claim 4, characterized in that: The dehumidification device also includes an air inlet and an air outlet, wherein the air inlet and the air outlet are respectively located on opposite sides of the first heat exchanger, and the air inlet and the air outlet are opened in the box body of the high-pressure box, and the second fan is located at the air inlet or the air outlet.

6. The temperature and humidity control system according to claim 4, characterized in that: The temperature and humidity adjustment system further includes a second heat exchanger, which is disposed in the high-pressure box and connected to the first heat exchanger.

7. The temperature and humidity control system according to claim 1, characterized in that: The liquid cooling unit includes a compressor, a condenser and a third heat exchanger which are connected in sequence, the third heat exchanger is respectively connected to the battery and the dehumidification device, and the compressor and the condenser are respectively connected to both ends of the evaporator.

8. The temperature and humidity control system according to claim 7, characterized in that: The liquid cooling unit further includes a PTC water-heating heater, and the PTC water-heating heater is connected between the third heat exchanger and the battery.

9. The temperature and humidity control system according to claim 7, characterized in that: The liquid cooling unit further includes a first electronic expansion valve and a second electronic expansion valve, wherein the first electronic expansion valve is connected between the evaporator and the condenser, and the second electronic expansion valve is connected between the third heat exchanger and the condenser.

10. An energy storage device, characterized in that: It comprises a temperature and humidity regulating system as claimed in any one of claims 1 to 9.

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