Temperature and humidity management system for energy storage cabin

Abstract

The utility model relates to a temperature and humidity management system for an energy storage cabin, and the system comprises a refrigerating circuit which comprises a compressor, a condenser, an expansion valve and a heat exchanger which are communicated with one another; the dehumidification loop comprises a heat exchanger, a water replenishing tank, a water pump, a switching valve, a dehumidifier water inlet pipeline, a dehumidifier and a dehumidifier water return pipeline which are communicated with one another; the cooling loop is connected between the switching valve and the heat exchanger and comprises a battery module water inlet pipeline, a battery module and a battery module water return pipeline which are communicated with one another; and the switching valve simultaneously or independently opens the battery module water inlet pipeline and the dehumidifier water inlet pipeline, so that the dehumidification loop and the cooling loop simultaneously or independently work. The dehumidification loop and the cooling loop can open the battery module water inlet pipeline and the dehumidifier water inlet pipeline at the same time or independently under the control of the switching valve, so that the dehumidification loop and the cooling loop can work at the same time or independently, and flexible switching of multiple working modes is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage batteries, and in particular to a temperature and humidity management system for an energy storage cabin. Background Art

[0002] With the rapid development of the energy storage industry, energy storage cabinets and energy storage containers have been mass-produced. Batteries are the core part of energy storage products. At present, the fatal defects of batteries have not been overcome. Batteries can only work efficiently at a suitable temperature. Too high or too low operating temperature will reduce the charging and discharging efficiency of batteries.

[0003] With the rapid development of the energy storage industry, battery thermal management has emerged to control the battery temperature within the most suitable temperature range to charge and discharge with the highest efficiency. With the continuous improvement of battery energy density in the industry, liquid-cooled battery thermal management technology has undoubtedly become the first choice for energy storage containers.

[0004] However, the thermal management of liquid-cooled batteries has created new problems. After the battery pack cools down, it exchanges heat with the natural air in the cabin. The air temperature drops below the dew point, and the water vapor in the air condenses into water droplets on the pack. The gathering of water droplets may cause electrical insulation failure of the energy storage system, causing short circuit risks and may also aggravate the corrosion of other components. Because of the above disadvantages, most energy storage manufacturers need to equip the container with additional dehumidifiers to ensure the dryness of the battery cabin, which increases product costs. Summary of the invention

[0005] The embodiment of the present application provides a temperature and humidity management system for an energy storage compartment to solve the problem in the related art that an additional dehumidifier is installed in the container to ensure dryness in the battery compartment, thereby increasing product costs.

[0006] The embodiment of the present application provides a temperature and humidity management system for an energy storage cabin, including:

[0007] A refrigeration circuit, the refrigeration circuit comprising a compressor, a condenser, an expansion valve and a heat exchanger that are interconnected;

[0008] A dehumidification circuit, the dehumidification circuit comprising the heat exchanger, water supply tank, water pump, switching valve, dehumidifier water inlet pipeline, dehumidifier and dehumidifier water return pipeline which are interconnected;

[0009] A cooling circuit, the cooling circuit is connected between the heat exchanger and the switching valve, and includes a battery module water inlet pipeline, a battery module, and a battery module water return pipeline that are interconnected;

[0010] The switching valve opens the battery module water inlet pipeline and the dehumidifier water inlet pipeline simultaneously or separately, so that the dehumidification circuit and the cooling circuit work simultaneously or separately.

[0011] In some embodiments: it also includes a prefabricated cabin for energy storage batteries, the prefabricated cabin for energy storage batteries includes an electrical cabin and a battery cabin, the electrical cabin is provided with the refrigeration circuit and the dehumidification circuit, the battery cabin is provided with a dehumidification circuit and a cooling circuit, the battery modules are provided with multiple groups, and the multiple groups of battery modules are provided with liquid cooling devices connecting the water inlet pipes of the battery modules and the water return pipes of the battery modules.

[0012] In some embodiments: the battery module includes a battery box and a plurality of battery packs located in the battery box, and a first battery information collector that detects voltage and temperature information of the plurality of battery packs;

[0013] A second battery information collector connected to a plurality of the first battery information collectors is provided between the plurality of groups of the battery modules. The second battery information collector is connected to a battery management controller, and the battery management controller is connected to the compressor and the switching valve.

[0014] In some embodiments: the dehumidifier is provided with a plurality of groups, the plurality of groups of the dehumidifier are arranged in sequence in the battery compartment, and the plurality of groups of the dehumidifier are connected in parallel or in series through the dehumidifier water inlet pipe and the dehumidifier water return pipe.

[0015] In some embodiments: the outlet of the dehumidifier return pipe is connected to the battery module return pipe, the outlet of the battery module return pipe is connected to the heat exchanger, and a control valve is connected between the outlet of the dehumidifier return pipe and the battery module return pipe.

[0016] In some embodiments: the dehumidifier includes a water inlet connected to the dehumidifier water inlet pipeline, a water outlet connected to the dehumidifier return pipeline, a heat exchange pipeline connected between the water inlet and the water outlet, and heat exchange fins are provided on the heat exchange pipeline.

[0017] In some embodiments: the dehumidifier further comprises a dehumidification shell for fixing the heat exchange pipeline, the bottom of the dehumidification shell is connected to a wedge-shaped condensation water collecting trough, and the bottom of the wedge-shaped condensation water collecting trough is provided with a drain port.

[0018] In some embodiments: the dehumidifier further includes a circulation fan, and the circulation fan is located at one side of the dehumidifier to make the air flow pass through the heat exchange pipeline and the heat exchange fins.

[0019] In some embodiments: the dehumidifier is provided with a temperature and humidity sensor and a temperature and humidity controller, the temperature and humidity sensor and the temperature and humidity controller are connected to each other, and the temperature and humidity controller is connected to the switching valve.

[0020] In some embodiments: the refrigeration circuit is also connected to a liquid storage tank for storing refrigerant.

[0021] The beneficial effects of the technical solution provided by this application include:

[0022] An embodiment of the present application provides a temperature and humidity management system for an energy storage cabin. Since the temperature and humidity management system for an energy storage cabin of the present application is provided with a refrigeration circuit, the refrigeration circuit includes a compressor, a condenser, an expansion valve and a heat exchanger that are interconnected; a dehumidification circuit, the dehumidification circuit includes a heat exchanger, a water supply tank, a water pump, a switching valve, a dehumidifier water inlet pipe, a dehumidifier and a dehumidifier return pipe that are interconnected; a cooling circuit, the cooling circuit is connected between the switching valve and the heat exchanger, and includes a battery module water inlet pipe, a battery module and a battery module return pipe that are interconnected; the switching valve opens the battery module water inlet pipe and the dehumidifier water inlet pipe simultaneously or separately, so that the dehumidification circuit and the cooling circuit work simultaneously or separately.

[0023] Therefore, the dehumidification circuit and cooling circuit of the present application are both connected to the refrigeration circuit, and the refrigeration circuit is used as a common cold source for the dehumidification circuit and the cooling circuit. Under the control of the switching valve, the dehumidification circuit and the cooling circuit can open the battery module water inlet pipeline and the dehumidifier water inlet pipeline simultaneously or separately, so that the dehumidification circuit and the cooling circuit can work simultaneously or separately, and realize flexible conversion of multiple working modes. When the cooling circuit is in idle time, the switching valve uses the excess cold of the refrigeration circuit for the dehumidification circuit to dehumidify the battery compartment, so that the dehumidification circuit and the cooling circuit can be compatible with each other. Compared with the energy storage product that separately adds dehumidification equipment, it reduces the manufacturing cost of the energy storage product and improves the reliability of the use of the energy storage product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;

[0026] Figure 2 This is a schematic diagram of the structure of the refrigeration circuit, dehumidification circuit and cooling circuit in the embodiment of the present application;

[0027] Figure 3 This is a schematic diagram of the structure of the refrigeration circuit and the dehumidification circuit of the embodiment of the present application;

[0028] Figure 4 This is a schematic diagram of the structure of the refrigeration circuit and the cooling circuit of the embodiment of the present application;

[0029] Figure 5 This is a schematic diagram of the structure of the battery module of an embodiment of the present application;

[0030] Figure 6 This is a schematic diagram of the structure of the dehumidifier according to an embodiment of the present application.

[0031] Reference numerals:

[0032] 01. Energy storage battery prefabricated cabin; 02. Battery module; 03. Refrigeration circuit; 04. Dehumidifier; 05. Control valve; 06. Switching valve; 021. Battery module water inlet pipeline; 022. Battery module return pipeline; 023. Battery box; 024. Battery pack; 025. Battery module collection harness; 026. First battery information collector; 027. Second battery information collector; 028. Battery management controller; 031. Compressor; 0 32. Condenser; 033. Expansion valve; 034. Heat exchanger; 035. Liquid storage tank; 036. Water supply tank; 037. Water pump; 041. Dehumidifier water inlet pipe; 042. Dehumidifier water return pipe; 043. Water inlet; 044. Water outlet; 045. Dehumidifier housing; 046. Circulation fan; 047. Heat exchange fins; 048. Heat exchange pipe; 049. Condensate collection tank; 0410. Drain; 0411. Temperature and humidity controller. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0034] An embodiment of the present application provides a temperature and humidity management system for an energy storage cabin, which can solve the problem in the related art that an additional dehumidifier is installed in the container to ensure dryness in the battery cabin, thereby increasing product costs.

[0035] See also Figure 1 and Figure 2 As shown, the embodiment of the present application provides a temperature and humidity management system for an energy storage cabin, including:

[0036] Refrigeration circuit 03, which includes a compressor 031, a condenser 032, an expansion valve 033 and a heat exchanger 034 which are interconnected; the compressor 031 sucks in a low-temperature and low-pressure gaseous refrigerant, which becomes a high-temperature and high-pressure gaseous state after being compressed and enters the condenser 032, which becomes a medium-pressure and medium-temperature liquid state after forced convection heat exchange with the outside air in the condenser 032, and then passes through the expansion valve 033 to throttle and reduce the pressure, becomes a low-temperature and low-pressure liquid refrigerant, and then enters the heat exchanger 034 to evaporate. The refrigeration circuit is also connected to a liquid storage tank 035 for storing refrigerant.

[0037] The dehumidification circuit includes a heat exchanger 034, a water supply tank 036, a water pump 037, a switching valve 06, a dehumidifier water inlet pipe 041, a dehumidifier 04 and a dehumidifier water return pipe 042 which are interconnected. The dehumidification circuit and the water supply tank 036 store cooling liquid, which flows through the heat exchanger 034 and forms low-temperature chilled water after heat exchange with the heat exchanger 034. Under the pressure-boosting effect of the water pump 037, the low-temperature chilled water flows through the switching valve 06, the dehumidifier water inlet pipe 041, the dehumidifier 04 and the dehumidifier water return pipe 042 in sequence and then flows back to the heat exchanger 034 for cooling again.

[0038] The cooling circuit is connected between the switching valve 06 and the heat exchanger 034. The cooling circuit includes a battery module water inlet pipeline 021, a battery module 02, and a battery module water return pipeline 022 that are interconnected. The inlet of the battery module water inlet pipeline 021 of the cooling circuit is connected to the switching valve 06, and the battery module water return pipeline 022 of the cooling circuit is connected to the heat exchanger 034. The cooling circuit shares the heat exchanger 034, the water supply tank 036, the water pump 037 and the switching valve 06 of the dehumidification circuit.

[0039] The coolant in the cooling circuit flows through the heat exchanger 034 and then exchanges heat with the heat exchanger 034 to form low-temperature chilled water. After the low-temperature chilled water flows into the water supply tank 036, under the pressure of the water pump 037, the coolant flows through the switching valve 06, the battery module water inlet pipeline 021, the liquid cooling device of the battery module 02 and the battery module return pipeline 022 in sequence, and then flows back to the heat exchanger 034 for cooling again. The liquid cooling device is connected to the battery module water inlet pipeline 021 and the battery module return pipeline 022, and the battery module 02 is cooled by the liquid cooling device, wherein the liquid cooling device can be a liquid cooling plate, and the embodiment of the present application does not limit the specific structural form of the liquid cooling device.

[0040] The switching valve 06 shared by the cooling circuit and the dehumidification circuit can open the battery module water inlet pipeline 021 and the dehumidifier water inlet pipeline 041 simultaneously or separately, so that the dehumidification circuit and the cooling circuit work simultaneously or separately. When the switching valve 06 opens the battery module water inlet pipeline 021 alone, the temperature and humidity management system provided by the embodiment of the present application is in the first working mode, when the switching valve 06 opens the dehumidifier water inlet pipeline 041 alone, the temperature and humidity management system provided by the embodiment of the present application is in the second working mode, and when the switching valve 06 opens the battery module water inlet pipeline 021 and the dehumidifier water inlet pipeline 041 at the same time, the temperature and humidity management system provided by the embodiment of the present application is in the third working mode.

[0041] In the first working mode, the switching valve 06 is started, the dehumidifier water inlet pipe 041 is closed, the coolant passes through the battery module water inlet pipe 021 to cool the battery module 02, and the coolant returns to the heat exchanger 034 through the battery module return pipe 022. In the first working mode, control is performed according to the temperature of the battery module 02.

[0042] When the maximum battery temperature of any battery module 02 is greater than the first temperature threshold and the average value of the collected battery temperature is greater than the second temperature threshold, the refrigeration circuit 03 starts the cooling mode; when the average value of the battery temperature is less than the third temperature threshold and greater than the fourth temperature threshold, the refrigeration circuit 03 starts the self-circulation mode; when the minimum battery temperature is less than or equal to the fifth temperature threshold and the average value of the battery temperature is less than or equal to the sixth temperature threshold, the refrigeration circuit 03 starts the heating mode.

[0043] In the second working mode, the second working mode needs to be performed in the self-circulation mode of the first working mode. In the self-circulation mode, the refrigeration circuit 03 does not refrigerate or heat the cooling circuit. The switching valve 06 is activated, the battery module water inlet pipeline 021 is closed, the dehumidifier water inlet pipeline 041 is opened, and the coolant enters the dehumidifier water inlet pipeline 041, enters the dehumidifier 04, and returns to the heat exchanger 034 through the dehumidifier return water pipeline 042.

[0044] In the third working mode, the battery module water inlet pipeline 021 and the dehumidifier water inlet pipeline 041 are opened simultaneously by the switching valve 06. In the dehumidification circuit and the cooling circuit, the opening of the switching valve 06 is adjusted to allow part of the coolant to flow through the dehumidification circuit and the other part to flow through the cooling circuit. The control of the coolant temperature is the same as in the first working mode, and the compressor power is controlled by the battery management controller.

[0045] The dehumidification circuit and the cooling circuit of the embodiment of the present application are both connected to the refrigeration circuit 03, and the refrigeration circuit 03 is used as a common cold source for the dehumidification circuit and the cooling circuit. Under the control of the switching valve 06, the dehumidification circuit and the cooling circuit can open the battery module water inlet pipeline 021 and the dehumidifier water inlet pipeline 041 simultaneously or separately, so that the dehumidification circuit and the cooling circuit can work simultaneously or separately, realizing flexible conversion of multiple working modes.

[0046] When the cooling circuit is in the closed state, the switching valve 06 uses the excess cooling capacity of the refrigeration circuit for the dehumidification circuit to dehumidify the battery compartment, so that the dehumidification circuit and the cooling circuit can be compatible with each other. Compared with the energy storage product, the manufacturing cost of the energy storage product is reduced and the reliability of the energy storage product is improved.

[0047] In some alternative embodiments: See Figure 1 and Figure 2As shown, the embodiment of the present application provides a temperature and humidity management system for an energy storage cabin, which also includes a prefabricated energy storage battery cabin 01, and the prefabricated energy storage battery cabin 01 includes an electrical cabin and a battery cabin. A refrigeration circuit 03 and a dehumidification circuit are provided in the electrical cabin, and a dehumidification circuit and a cooling circuit are provided in the battery cabin. Multiple groups of battery modules 02 are provided, and the multiple groups of battery modules 02 are all provided with a liquid cooling device connected to the battery module water inlet pipeline 021 and the battery module water return pipeline 022.

[0048] There are multiple groups of dehumidifiers 04 located in the battery compartment. The multiple groups of dehumidifiers 04 are arranged in sequence in the battery compartment. The multiple groups of dehumidifiers 04 are connected in parallel or in series through the dehumidifier water inlet pipe 041 and the dehumidifier water return pipe 042. Preferably, the multiple groups of dehumidifiers 04 are connected in parallel. Compared with the series solution, the parallel solution can make the dehumidification effect of each area the same, and the overall dehumidification effect is better. The outlet of the dehumidifier water return pipe 042 is connected to the battery module water return pipe 022, and the outlet of the battery module water return pipe 022 is connected to the heat exchanger 034. A control valve 05 is connected between the outlet of the dehumidifier water return pipe 042 and the battery module water return pipe 022.

[0049] In the first working mode, the control valve 05 is closed, so that the dehumidification circuit is in a closed state, and the coolant discharged from the cooling circuit eventually flows back to the heat exchanger 034 under the closing effect of the control valve 05. In the second working mode and the third working mode, the control valve 05 is opened, so that the dehumidification circuit is in an open state. The control valve 05 and the switching valve 06 are both electrically controlled valves, and the control valve 05 and the switching valve 06 are controlled by the battery management controller 028 and the temperature and humidity controller 0411.

[0050] In some alternative embodiments: See Figure 5 As shown, an embodiment of the present application provides a temperature and humidity management system for an energy storage cabin, wherein a battery module 02 of the temperature and humidity management system includes a battery box 023 and a plurality of battery packs 024 located in the battery box 023, and a first battery information collector 026 for detecting voltage and temperature information of the plurality of battery packs; the first battery information collector 026 is connected to the battery pack 024 via a battery module acquisition harness 025.

[0051] A second battery information collector 027 connected to a plurality of first battery information collectors 026 is provided between the plurality of battery modules 02. The second battery information collector 027 is connected to a battery management controller 028. The battery management controller 028 is connected to the compressor 031 and the switching valve 06 (the battery management controller 028 is used to control the switching valve 06 to switch the working mode, and to control the power of the compressor 031). The first battery information collector 026 is installed inside each battery group 024, and is used to collect information such as the temperature and voltage of each battery group 024. The second battery information collector 027 is used to collect and aggregate data from a plurality of first battery information collectors 026; the battery management controller 028 is used to aggregate and process the data of the second battery information collector 027 and can exchange information with the outside.

[0052] In some alternative embodiments: See Figure 6 As shown, an embodiment of the present application provides a temperature and humidity management system for an energy storage cabin, wherein the dehumidifier 04 of the temperature and humidity management system includes a water inlet 043 connected to a dehumidifier water inlet pipe 041, a water outlet 044 connected to a dehumidifier return pipe 042, a heat exchange pipe 048 connected between the water inlet 043 and the water outlet 044, and heat exchange fins 047 are provided on the heat exchange pipe 048, and the heat exchange fins 047 increase the contact area with the humid air so that the humid air condenses on the surface of the heat exchange fins 047.

[0053] The dehumidifier 04 further includes a dehumidification housing 045 for fixing a heat exchange pipe 048. The bottom of the dehumidification housing 045 is connected to a wedge-shaped condensation water collecting tank 049. After condensation, the condensation water flows into the wedge-shaped condensation water collecting tank 049. The bottom of the wedge-shaped condensation water collecting tank 049 is provided with a drain port 0410. The wedge-shaped condensation water collecting tank 049 collects the condensation water and then discharges it through the drain port 0410. The dehumidifier 04 further includes a circulation fan 046. The circulation fan 046 is located on one side of the dehumidifier 04 to make the air flow pass through the heat exchange pipe 048 and the heat exchange fins 047, so as to speed up the air flow and improve the dehumidification efficiency.

[0054] The dehumidifier 04 is provided with a temperature and humidity sensor (not shown) and a temperature and humidity controller 0411. The temperature and humidity sensor and the temperature and humidity controller 0411 are interconnected. The temperature and humidity controller 0411 is connected to the switching valve 06 and the compressor 031, wherein the temperature and humidity controller 0411 is used to control the switching valve 06 to switch the working mode and control the power of the compressor 031. When the cooling circuit and the dehumidification circuit work at the same time, the battery management controller has a higher priority, and the temperature and humidity controller only controls the switching valve. The dehumidifier inlet water temperature is determined by the temperature and humidity controller 0411. The temperature and humidity sensor on the specific dehumidifier transmits the temperature and humidity information to the temperature and humidity controller 0411. The temperature and humidity controller 0411 obtains the dew point temperature under the current conditions as the temperature and humidity threshold through calculation; when the temperature and humidity measurement value is greater than the temperature and humidity threshold, the refrigeration circuit 03 enters the dehumidification mode, otherwise it enters the dehumidification waiting mode.

[0055] It should be noted that the battery management controller is used to control the on-off between the switching valve and the cooling circuit, and the temperature and humidity controller is used to control the on-off between the switching valve and the dehumidification circuit, and both are electrically connected to the compressor to control the power of the compressor. Specifically, when only the cooling circuit is working, the compressor power is controlled by the battery management controller, and when only the dehumidification circuit is working, the compressor power is controlled by the temperature and humidity controller. When the cooling circuit and the dehumidification circuit are working at the same time, the battery management controller has a higher priority, that is, the battery management controller is used to control the power of the compressor, and the temperature and humidity controller only controls the switching valve.

[0056] How it works

[0057] The embodiment of the present application provides a temperature and humidity management system for an energy storage cabin. Since the temperature and humidity management system for an energy storage cabin of the present application is provided with a refrigeration circuit 03, the refrigeration circuit 03 includes a compressor 031, a condenser 032, an expansion valve 033 and a heat exchanger 034 that are interconnected; a dehumidification circuit, the dehumidification circuit includes a heat exchanger 034, a water replenishment tank 036, a water pump 037, a switching valve 06, a dehumidifier water inlet pipeline 041, a dehumidifier 04 and a dehumidifier return water pipeline 042 that are interconnected; a cooling circuit, the cooling circuit is connected between the switching valve 06 and the heat exchanger 034, and includes a battery module water inlet pipeline 021, a battery module 02 and a battery module return water pipeline 022 that are interconnected; the switching valve 06 opens the battery module water inlet pipeline 021 and the dehumidifier water inlet pipeline 041 simultaneously or separately, so that the dehumidification circuit and the cooling circuit work simultaneously or separately.

[0058] Therefore, the dehumidification circuit and cooling circuit of the present application are both connected to the refrigeration circuit 03, and the refrigeration circuit 03 is used as a common cold source for the dehumidification circuit and the cooling circuit. Under the control of the switching valve 06, the dehumidification circuit and the cooling circuit can open the battery module water inlet pipeline 021 and the dehumidifier water inlet pipeline 041 simultaneously or separately, so that the dehumidification circuit and the cooling circuit can work simultaneously or separately, and realize flexible conversion of multiple working modes. When the cooling circuit is in a closed state, the switching valve 06 uses the excess cold of the refrigeration circuit 03 for the dehumidification circuit to dehumidify the battery compartment, so that the dehumidification circuit and the cooling circuit can be compatible with each other. Compared with the energy storage product that separately adds dehumidification equipment, it reduces the manufacturing cost of the energy storage product and improves the reliability of the use of the energy storage product.

[0059] In the description of the present application, it should be noted that the terms "upper", "lower", etc. 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, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0060] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0061] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A temperature and humidity management system for an energy storage cabin, characterized in that: include: A refrigeration circuit (03), wherein the refrigeration circuit (03) comprises a compressor (031), a condenser (032), an expansion valve (033) and a heat exchanger (034) which are interconnected; A dehumidification circuit, the dehumidification circuit comprising the heat exchanger (034), a water supply tank (036), a water pump (037), a switching valve (06), a dehumidifier water inlet pipeline (041), a dehumidifier (04) and a dehumidifier water return pipeline (042) which are interconnected; A cooling circuit, the cooling circuit being connected between the heat exchanger (034) and the switching valve (06), and comprising a battery module water inlet pipeline (021), a battery module (02) and a battery module water return pipeline (022) which are interconnected; The switching valve (06) opens the battery module water inlet pipeline (021) and the dehumidifier water inlet pipeline (041) simultaneously or separately, so that the dehumidification circuit and the cooling circuit work simultaneously or separately.

2. The temperature and humidity management system for an energy storage cabin according to claim 1, characterized in that: The invention also comprises a prefabricated energy storage battery cabin (01), wherein the prefabricated energy storage battery cabin (01) comprises an electrical cabin and a battery cabin, wherein the electrical cabin is provided with the refrigeration circuit (03) and the dehumidification circuit, wherein the battery cabin is provided with a dehumidification circuit and a cooling circuit, wherein the battery modules (02) are provided in a plurality of groups, and each of the plurality of groups of battery modules (02) is provided with a liquid cooling device connected to the battery module water inlet pipeline (021) and the battery module water return pipeline (022).

3. The temperature and humidity management system for an energy storage cabin according to claim 1 or 2, characterized in that: The battery module (02) comprises a battery box (023), a plurality of battery packs (024) located in the battery box (023), and a first battery information collector (026) for detecting voltage and temperature information of the plurality of battery packs (024); A second battery information collector (027) connected to a plurality of the first battery information collectors (026) is provided between the plurality of groups of the battery modules (02); the second battery information collector (027) is connected to a battery management controller (028); and the battery management controller (028) is connected to the compressor (031) and the switching valve (06).

4. The temperature and humidity management system for an energy storage cabin according to claim 2, characterized in that: The dehumidifier (04) is provided in a plurality of groups, and the plurality of groups of the dehumidifier (04) are arranged in sequence and at intervals in the battery compartment. The plurality of groups of the dehumidifier (04) are connected in parallel or in series through the dehumidifier water inlet pipeline (041) and the dehumidifier water return pipeline (042).

5. The temperature and humidity management system for an energy storage cabin according to claim 1, characterized in that: The outlet of the dehumidifier water return pipeline (042) is connected to the battery module water return pipeline (022), and the outlet of the battery module water return pipeline (022) is connected to the heat exchanger (034). A control valve (05) is connected between the outlet of the dehumidifier water return pipeline (042) and the battery module water return pipeline (022).

6. The temperature and humidity management system for an energy storage cabin according to claim 1, characterized in that: The dehumidifier (04) comprises a water inlet (043) connected to the dehumidifier water inlet pipeline (041), a water outlet (044) connected to the dehumidifier water return pipeline (042), and a heat exchange pipeline (048) connected between the water inlet (043) and the water outlet (044), wherein the heat exchange pipeline (048) is provided with heat exchange fins (047).

7. The temperature and humidity management system for an energy storage cabin according to claim 6, characterized in that: The dehumidifier (04) further comprises a dehumidification shell (045) for fixing the heat exchange pipeline (048), the bottom of the dehumidification shell (045) is connected to a wedge-shaped condensation water collecting trough (049), and the bottom of the wedge-shaped condensation water collecting trough (049) is provided with a drainage outlet (0410).

8. The temperature and humidity management system for an energy storage cabin according to claim 6, characterized in that: The dehumidifier (04) further comprises a circulation fan (046), wherein the circulation fan (046) is located on one side of the dehumidifier (04) to make the air flow pass through the heat exchange pipeline (048) and the heat exchange fins (047).

9. The temperature and humidity management system for an energy storage cabin according to claim 1, characterized in that: The dehumidifier (04) is provided with a temperature and humidity sensor and a temperature and humidity controller (0411), the temperature and humidity sensor and the temperature and humidity controller (0411) are interconnected, and the temperature and humidity controller (0411) is connected to the switching valve (06).

10. The temperature and humidity management system for an energy storage cabin according to claim 1, characterized in that: The refrigeration circuit (03) is also connected to a liquid storage tank (035) for storing refrigerant.

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