Energy storage device temperature control system and energy storage device

Abstract

The utility model discloses an energy storage device temperature control system and an energy storage device, and the system comprises a water module which is internally provided with a water flow path; the heat dissipation circulation module is connected with a liquid cooling component at the bottom of the energy storage battery, and a closed heat dissipation medium flow path used for medium circulation flowing is formed between the heat dissipation circulation module and the liquid cooling component; the intermediate heat exchanger is connected to the water module and the heat dissipation circulation module so that heat exchange can be carried out on water flowing through the water flow path and the medium in the heat dissipation medium flow path; and the liquid cooling unit module is connected in parallel with the heat dissipation circulation module and is optionally connected to the liquid cooling component. According to the novel energy storage device temperature control system and the energy storage device provided by the utility model, the temperature control effect on the energy storage battery can be ensured, and the whole energy storage device temperature control system is high in reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, in particular to an improvement of a temperature control system for an energy storage device and the structure of the energy storage device. Background Art

[0002] The energy storage device includes energy storage batteries, which generate a large amount of heat during use. If this heat is not dissipated in time, the temperature inside the cabinet will gradually rise. When the temperature rises to a certain level, it will affect the use functions of the energy storage batteries (such as charge and discharge performance), and even worse, there is a risk of explosion.

[0003] At the same time, when the ambient temperature is too low, such as in winter, the low-temperature environment will also cause problems such as serious power loss of the battery, inability to charge and discharge normally, and reduced lifespan.

[0004] Therefore, industrial and commercial energy storage cabinets usually are equipped with refrigeration units to adjust the temperature of the batteries and control the battery temperature within a suitable range.

[0005] The existing temperature regulation of the energy storage batteries in the energy storage device mainly is carried out by a single direct cooling or liquid cooling mode. If the direct cooling unit or liquid cooling unit used for temperature regulation is damaged or has insufficient cooling capacity, it is impossible to ensure precise temperature control of the energy storage batteries, and the temperature control accuracy of the entire temperature control system is poor and the reliability is low.

[0006] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Utility Model

[0007] In view of the above problems pointed out in the background art, a novel temperature control system for an energy storage device and an energy storage device are proposed, which can ensure the temperature control effect on the energy storage batteries, and the entire temperature control system of the energy storage device has good reliability.

[0008] To achieve the above utility model purpose, the present utility model is implemented by the following technical solutions:

[0009] In some embodiments of the present application, a temperature control system for an energy storage device is provided, including:

[0010] A water module, with a water flow path formed inside;

[0011] A heat dissipation circulation module, connected to the liquid cooling component at the bottom of the energy storage battery and forming a closed heat dissipation medium flow path with the liquid cooling component;

[0012] An intermediate heat exchanger, connected to the water module and the heat dissipation circulation module, so that the water flowing through the water flow path and the medium in the heat dissipation medium flow path perform heat exchange;

[0013] The liquid cooling unit module is connected in parallel with the heat dissipation circulation module and is optionally connected to the liquid cooling component.

[0014] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0015] In the energy storage device temperature control system of the present utility model, a water module and a heat dissipation circulation module are provided. The medium after heat exchange between the two can be used to adjust the temperature of the energy storage battery. At the same time, a liquid cooling unit module is correspondingly provided. Through the setting of the liquid cooling unit module, when the heat dissipation circulation module fails or is under maintenance and when the cooling capacity or heat is insufficient, compensation can be carried out through the liquid cooling unit module to ensure the normal operation of the entire system, ensure the temperature adjustment effect on the energy storage battery, and improve the reliability of the entire system.

[0016] After reading the specific implementation manners of the present utility model in conjunction with the attached drawings, other features and advantages of the present utility model will become clearer. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a structural diagram of the connection and operation process of the heat dissipation circulation module and the water module in the energy storage device temperature control system according to the embodiment;

[0019] Figure 2 It is a schematic diagram of the flow direction of the operation medium when the heat dissipation circulation module and the water module are connected in the energy storage device temperature control system according to the embodiment;

[0020] Figure 3 It is a structural diagram of the temperature adjustment process of the liquid cooling unit module in the energy storage device temperature control system according to the embodiment;

[0021] Figure 4 It is a structural diagram of the flow direction of the medium for temperature adjustment of the liquid cooling unit module in the energy storage device temperature control system according to the embodiment;

[0022] Figure 5 It is a structural diagram of the temperature adjustment process when the liquid cooling unit module and the heat dissipation circulation module simultaneously perform temperature adjustment in the energy storage device temperature control system according to the embodiment;

[0023] Figure 6 It is a schematic diagram of the flow direction of the medium when the liquid cooling unit module and the heat dissipation circulation module simultaneously perform temperature adjustment in the energy storage device temperature control system according to the embodiment;

[0024] Figure 7 Schematic diagram of the energy storage device structure according to an embodiment Figure 1 ;

[0025] Figure 8 Schematic diagram of the energy storage device structure according to an embodiment Figure 2 ;

[0026] Figure 9 Schematic diagram of the structure of the liquid cooling component of the energy storage device according to an embodiment;

[0027] Figure 10 Schematic diagram of the structure of another embodiment of the temperature control system of the energy storage device according to an embodiment.

[0028] Reference numerals:

[0029] 100, water module; 110, inlet pipe; 112, inlet water pressure detection sensor; 113, inlet water temperature detection sensor; 120, outlet pipe; 121, outlet water pressure detection sensor; 122, outlet water temperature detection sensor; 123, electric control valve; 130, water heat exchange pipeline; 200, heat dissipation circulation module; 210, heat dissipation inlet pipe; 211, first pressure sensor; 212, first temperature sensor; 213, safety valve; 214, inlet pipe body; 215, inlet interface section; 220, heat dissipation outlet pipe; 221, second pressure sensor; 222, second temperature sensor; 223, outlet pipe body; 224, outlet interface section; 230, pumping component; 240, medium storage component; 250, heat dissipation heat exchange pipe; 300, liquid cooling component; 310, upper cover; 320, bottom plate; 330, joint piece; 340, refrigerant flow channel; 400, energy storage battery; 500, intermediate heat exchanger; 600, liquid cooling unit module; 610, liquid cooling unit; 620, liquid cooling inlet pipe; 621, first control component; 630, liquid cooling outlet pipe; 631, second control component; 700, filtering device; 800, electric three-way control valve; 910, cabinet; 920, battery compartment. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0031] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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. Therefore, it should not be construed as a limitation to the present application.

[0032] The terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0033] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside 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 specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0035] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0036] In some embodiments of the present application, a temperature control system for an energy storage device is proposed, which is mainly used to control the temperature of the energy storage battery 400 in the energy storage device.

[0037] In some embodiments of the present application, the energy storage device includes:

[0038] A cabinet 910, in which a battery compartment 920 is formed. A plurality of battery compartments 920 are provided and arranged in sequence from top to bottom along the height direction of the cabinet 910;

[0039] A plurality of energy storage batteries 400, which are respectively arranged in a plurality of the battery compartments 920;

[0040] Through the plurality of vertically arranged battery compartments 920, simultaneous storage of a plurality of energy storage batteries 400 can be achieved, and the occupied space can be reduced.

[0041] A plurality of liquid cooling components 300, which are arranged at the bottom positions of a plurality of the battery compartments 920;

[0042] The liquid cooling component 300 is mainly used to exchange heat with the energy storage battery 400 arranged in the battery compartment 920 to achieve temperature regulation of the energy storage battery 400.

[0043] By arranging a plurality of liquid cooling components 300 corresponding to a plurality of energy storage batteries 400 respectively, one-to-one and uniform temperature regulation of each energy storage battery 400 can be ensured.

[0044] By using the energy storage temperature control system to regulate the temperature of the energy storage battery 400 in the energy storage cabinet 910, the temperature of the energy storage battery 400 can be within a suitable temperature range, ensuring the uniformity and stability of the temperature of the energy storage battery 400.

[0045] The energy storage device temperature control system includes:

[0046] A water module 100, in which a water flow path is formed. The medium flowing in the water module 100 is water, and the water introduced into the water module 100 can flow along the water flow path.

[0047] The heat dissipation circulation module 200 is connected to the liquid cooling component 300 at the bottom of the energy storage battery 400, and a closed heat dissipation medium flow path is formed between the heat dissipation circulation module 200 and the liquid cooling component 300.

[0048] The medium flowing in the heat dissipation circulation module 200 can flow to the liquid cooling component 300, and heat exchange is carried out through the liquid cooling component 300 and the energy storage battery 400 to control the temperature of the energy storage battery 400.

[0049] In some embodiments, the heat dissipation circulation module 200 is arranged on one side of the water module 100 and is adjacent to the water module 100. A medium circulates inside it, and the medium circulating inside it can flow through the liquid cooling component 300 at the bottom of the energy storage battery 400, and heat exchange is carried out through the liquid cooling component 300 and the energy storage battery 400 to control the temperature of the energy storage battery 400.

[0050] In some embodiments, multiple said liquid cooling components 300 of the energy storage device are all connected to the heat dissipation circulation module 200.

[0051] The medium flowing out of the heat dissipation circulation module 200 can be respectively shunted to the inside of multiple liquid cooling components 300 to exchange heat with the energy storage battery 400, and then flow back to the inside of the heat dissipation circulation module 200 from the multiple liquid cooling components 300. Through one heat dissipation circulation module 200, the temperature adjustment of multiple energy storage batteries 400 can be achieved at one time, and the adjustment efficiency is high.

[0052] The intermediate heat exchanger 500 is connected to the water module 100 and the heat dissipation circulation module 200 so that the water flowing through the water flow path and the medium in the heat dissipation medium flow path can carry out heat exchange.

[0053] The intermediate heat exchanger 500 provides a place for heat exchange between the water in the water module 100 and the medium in the heat dissipation circulation module 200. The water flowing through the water module 100 and the medium flowing through the heat dissipation circulation module 200 both flow to the intermediate heat exchanger 500, and heat exchange is carried out through the intermediate heat exchanger 500 to achieve the effect of heating or cooling the medium by water.

[0054] In some embodiments of the present application, the intermediate heat exchanger 500 is a plate heat exchanger.

[0055] The liquid cooling unit module 600 is connected in parallel with the heat dissipation circulation module 200, and it is optionally connected to the liquid cooling component 300.

[0056] The liquid cooling unit module 600 is arranged in parallel with the heat dissipation circulation module 200 and can be optionally connected to the liquid cooling component 300, so that the liquid cooling unit module 600 can be selectively connected according to the actual usage scenario requirements during use.

[0057] When the heat dissipation cycle module 200 fails and cannot exchange heat with the water module 100 and the temperature of the energy storage battery 400 needs to be adjusted, or when the heat dissipation cycle module 200 needs to be repaired, the liquid cooling unit module 600 connected in parallel with the heat dissipation cycle module 200 can be turned on and connected to the liquid cooling component 300 through the liquid cooling unit module 600, so that the medium in the liquid cooling unit module 600 directly enters the liquid cooling component 300 to control the temperature of the energy storage battery 400.

[0058] When the heat dissipation cycle module 200 can fully meet the temperature adjustment requirements of the energy storage battery 400, the liquid cooling unit module 600 can be controlled not to be connected to the entire energy storage temperature control system. After heat exchange between the heat dissipation cycle module 200 and the water module 100, the medium flows to the liquid cooling component 300, and heat exchange can be achieved through the liquid cooling component 300 and the energy storage battery 400.

[0059] If it is difficult to meet the temperature adjustment requirements of the energy storage battery 400 when the heat dissipation cycle module 200 operates alone, the liquid cooling unit module 600 can also be controlled to be connected to the liquid cooling component 300, and the medium can flow through the liquid cooling unit module 600 and the heat dissipation cycle module 200 to the liquid cooling component 300 simultaneously for heat exchange to adjust the temperature of the energy storage battery 400.

[0060] Through the setting of the liquid cooling unit module 600, compensation can be achieved through the liquid cooling unit module 600 when the heat dissipation cycle module 200 fails or is being repaired and when the cooling capacity or heat is insufficient, ensuring the normal operation of the entire system, ensuring the temperature adjustment effect of the energy storage battery 400, and improving the reliability of the entire system.

[0061] The energy storage device temperature control system has three different working modes, including: the working mode of the heat dissipation cycle module 200, the working mode of the liquid cooling unit module 600, and the working mode in which the heat dissipation cycle module 200 and the liquid cooling unit module 600 operate together.

[0062] When the energy storage device temperature control system is in use, the temperature of the energy storage battery 400 is mainly controlled by the operation of the heat dissipation cycle module 200.

[0063] When in the working mode of the heat dissipation cycle module 200: the water flow in the water module 100 flows in the water flow path, and at the same time, the medium in the heat dissipation cycle module 200 flows in the medium flow path. The water in the water module 100 will exchange heat with the medium in the heat dissipation medium flow path flowing through the intermediate heat exchanger 500 when entering the intermediate heat exchanger 500, and the exchanged medium flows to the liquid cooling component 300 at the bottom of the energy storage battery 400 to adjust the temperature of the energy storage battery 400.

[0064] The temperature adjustment of the energy storage battery 400 includes heating the energy storage battery 400 and cooling the energy storage battery 400.

[0065] When the temperature of the energy storage battery 400 is relatively high, the water flowing in the water module 100 is cold water. The cold water exchanges heat with the medium in the medium flow path, the temperature of the medium decreases, and it flows into the liquid cooling component 300. The medium in the liquid cooling component 300 absorbs heat to cool down the energy storage battery 400.

[0066] When the ambient temperature is relatively low in winter, the temperature of the energy storage battery 400 also decreases accordingly. The temperature of the battery in the battery compartment 920 drops to 10°C or even lower. At this time, it is necessary to heat it up through the liquid cooling component 300.

[0067] The water in the water module 100 exchanges heat with the medium in the heat dissipation circulation module 200, the temperature of the medium rises, and it flows into the liquid cooling component 300. The liquid cooling component 300 releases heat to heat up the battery.

[0068] In some embodiments, the temperature of the water in the water module 100 generally remains around 15 - 18°C. This temperature can cool down the battery when the battery temperature rises, and can also heat up the battery with 15 - 18°C cold water when the ambient temperature is low, such as when the temperature of the battery in the battery compartment drops to 10°C or even lower.

[0069] When the liquid cooling unit module 600 is in the working mode: the water module 100 and the circulation heat dissipation module do not participate in the circulation. The liquid cooling unit module 600 is directly connected to the liquid cooling component 300 located at the bottom of the energy storage battery 400 and forms a medium flow circuit with the liquid cooling component 300.

[0070] The medium that has been refrigerated or heated from the liquid cooling unit 610 directly flows into the liquid cooling component 300, and heat exchange is performed between the liquid cooling component 300 and the energy storage battery 400 to achieve temperature adjustment of the energy storage battery 400.

[0071] When in the working mode of the simultaneous operation of the heat dissipation circulation module 200 and the liquid cooling unit module 600:

[0072] The water module 100, the circulation heat dissipation module, and the liquid cooling unit module 600 all participate in the circulation.

[0073] The water in the water module 100 flows within the water module 100 and exchanges heat with the medium flowing through the circulation heat dissipation module in the intermediate heat exchanger 500. After the heat exchange is completed, the medium flows into the liquid cooling component 300 to adjust the temperature of the energy storage battery 400;

[0074] At the same time, the medium in the liquid cooling unit module 600 also flows into the liquid cooling component 300 to adjust the temperature of the energy storage battery 400.

[0075] The medium for temperature regulation of the energy storage battery 400 comes from the liquid cooling unit module 600 and the circulating heat dissipation module, which ensures the medium flow rate into the liquid cooling component 300, and further ensures the temperature regulation effect on the energy storage battery 400.

[0076] In some embodiments of the present application, the water module 100 includes:

[0077] A water pipeline, the water pipeline includes a water inlet pipe 110, and a filtering device 700 and a water inlet pressure and temperature detection component are arranged on the water inlet pipe 110;

[0078] The water inlet pressure and temperature detection component includes a water inlet temperature detection sensor 113 and a water inlet pressure detection sensor 112. The temperature at the water inlet pipe 110 can be detected through the water inlet temperature detection sensor 113.

[0079] The pressure on the water inlet pipe 110 can be detected through the water inlet pressure detection sensor 112.

[0080] The filtering device 700 is a filter, which is used to filter the water flow in the water inlet pipe 110.

[0081] And a water outlet pipe 120, and a water outlet pressure and temperature detection component is arranged on the water outlet pipe 120;

[0082] The water outlet pressure and temperature detection component includes a water outlet temperature detection sensor 122 and a water outlet pressure detection sensor 121, which are respectively used to detect the temperature and pressure at the water outlet pipe 120.

[0083] A water heat exchange pipeline 130 is formed inside the intermediate heat exchanger 500, connecting the water inlet pipe 110 and the water outlet pipe 120. It is built inside the intermediate heat exchanger 500 and is mainly used for heat exchange with the medium in the circulating heat dissipation module.

[0084] In some embodiments of the present application, an electric control valve 123 is arranged on the water inlet pipe 110.

[0085] The electric control valve 123 is an electric two-way valve, and the flow rate of the incoming water can be accurately controlled by adjusting the opening of the electric two-way regulation.

[0086] In some embodiments of the present application, the heat dissipation circulation module 200 includes:

[0087] A heat dissipation inlet pipe 210, and a first pressure and temperature detection component and a safety valve 213 are arranged on the heat dissipation inlet pipe 210;

[0088] In some embodiments, the first pressure and temperature detection component includes a first pressure sensor 211 and a first temperature sensor 212, which are used to detect the pressure and temperature at the heat dissipation inlet pipe 210.

[0089] A heat dissipation outlet pipe 220, on which a second pressure and temperature detection component and a filtering device 700 are arranged;

[0090] A heat dissipation heat exchange pipe 250, which is connected between the heat dissipation inlet pipe 210 and the heat dissipation outlet pipe 220, is formed inside the intermediate heat exchanger 500, and is used to exchange heat with the water heat exchange pipeline 130.

[0091] In some embodiments, the second pressure and temperature detection component includes a second pressure sensor 221 and a second temperature sensor 222, which are used to detect the pressure and temperature at the heat dissipation outlet pipe 220.

[0092] A pumping component 230, which is arranged on the heat dissipation inlet pipe 210 or the heat dissipation outlet pipe 220. The pumping component 230 is a transfer pump, which is used to provide the power for the circulating flow of the medium.

[0093] A medium storage component 240, which is arranged on the heat dissipation inlet pipe 210 or the heat dissipation outlet pipe 220.

[0094] The medium storage component 240 is an expansion tank, which is used to store the medium.

[0095] The medium located inside the medium storage component 240 is pumped out from inside through the action of the pumping component 230 and circulates between the heat dissipation inlet pipe 210, the heat dissipation outlet pipe 220, the heat dissipation heat exchange pipe 250 and the liquid cooling component 300.

[0096] In some embodiments of the present application, the heat dissipation medium in the heat dissipation medium flow path is an ethylene glycol aqueous solution or a propylene glycol aqueous solution.

[0097] In some embodiments of the present application, the heat dissipation inlet pipe 210 includes an inlet pipe body 214 and an inlet interface section 215 connected to the end of the inlet pipe body 214. The inlet interface section 215 is connected to the inlet of the liquid cooling component 300 and is used to transport the medium to the liquid cooling component 300.

[0098] The heat dissipation outlet pipe 220 includes an outlet pipe body 223 and an outlet interface section 224 connected to the end of the outlet pipe body 223. The outlet interface section 224 is connected to the outlet of the liquid cooling component 300 and is used to output the medium from the liquid cooling component 300.

[0099] In some embodiments of the present application, the liquid cooling unit module 600 includes: a liquid cooling unit 610, and the liquid cooling unit 610 can be an energy storage liquid cooler in the prior art.

[0100] and a liquid cooling inlet pipe 620, which is connected at the connection position of the inlet pipe body 214 and the inlet interface section 215;

[0101] and a liquid cooling outlet pipe 630, which is connected at the connection position of the outlet pipe body 223 and the outlet interface section 224.

[0102] The liquid cooling unit 610 is connected to the inlet interface section 215 through the liquid cooling inlet pipe 620, and the liquid cooling outlet pipe 630 is connected to the outlet interface section 224, realizing a parallel connection with the heat dissipation circulation module 200.

[0103] In some embodiments of the present application, a pipeline switching valve is provided at the connection position of the liquid cooling inlet pipe 620, the inlet pipe body 214 and the inlet interface section 215.

[0104] The pipeline switching valve is an electric three-way regulating valve 800.

[0105] Through the setting of the pipeline switching valve, the switching control of the liquid cooling unit module 600 and the heat dissipation circulation module 200 can be realized, so as to conveniently control the opening of the liquid cooling unit module 600 or / and the heat dissipation circulation module 200 according to actual needs.

[0106] In some embodiments of the present application, a first control component 621 for controlling the opening and closing of the liquid cooling inlet pipe 620 is provided on the liquid cooling inlet pipe 620;

[0107] A second control component 631 for controlling the opening and closing of the liquid cooling outlet pipe 630 is provided on the liquid cooling outlet pipe 630.

[0108] The first control component 621 is a first manual control valve, and the second control component 631 is a second manual control valve. The opening and closing of the liquid cooling inlet pipe 620 and the liquid cooling outlet pipe 630 can be controlled through the first control component 621 and the second control component 631.

[0109] When it is not necessary to connect the liquid cooling unit module 600 to the energy storage device temperature control system, the first control component 621 and the second control component 631 can be controlled to close.

[0110] When it is necessary to connect the liquid cooling unit module 600 to the energy storage device temperature control system, the first control component 621 and the second control component 631 are controlled to open.

[0111] In some embodiments, manual valves are provided on the water inlet pipe 110 and the water outlet pipe 120.

[0112] Manual valves are also correspondingly provided on the heat dissipation inlet pipe and the heat dissipation outlet pipe.

[0113] When the water module 100, the intermediate heat exchanger or the liquid cooling unit module 600 needs to be shut down and disassembled for maintenance, after closing the manual valve corresponding to the part to be maintained and disassembling it from the entire system, the medium in the pipelines of other parts that do not need to be maintained is locked in the system, and the flowing medium in the pipelines will not flow out, without affecting the normal temperature control of the energy storage device temperature control system for the battery compartment during charging and discharging.

[0114] In some embodiments of the present application, an energy storage device is provided, including:

[0115] A cabinet 910, in which a battery compartment 920 is formed. A plurality of battery compartments 920 are provided and arranged in sequence from top to bottom along the height direction of the cabinet 910;

[0116] Energy storage batteries 400, a plurality of which are provided and respectively arranged in a plurality of the battery compartments 920;

[0117] Liquid cooling components 300, a plurality of which are provided and arranged at the bottom positions of a plurality of the battery compartments 920;

[0118] It further includes an energy storage device temperature control system, and a plurality of the liquid cooling components 300 are all connected to the heat dissipation circulation module 200.

[0119] When adjusting the temperature of a plurality of energy storage batteries 400, the water in the water module 100 exchanges heat with the medium in the heat dissipation circulation module 200 in the intermediate heat exchanger 500. After heat exchange, the medium is respectively diverted to the interiors of a plurality of liquid cooling components 300 at the bottoms of a plurality of energy storage batteries 400. The medium in the liquid cooling components 300 exchanges heat with the energy storage batteries 400 to achieve temperature adjustment of the energy storage batteries 400. The medium after heat exchange flows out from the liquid cooling components 300 and returns to the interior of the heat dissipation circulation module 200, and then continues to flow to the intermediate heat exchanger 500 to exchange heat with the water module 100. After heat exchange, it flows out to the interior of the liquid cooling components 300 again and circulates continuously, realizing continuous temperature control of the energy storage batteries 400 above the liquid cooling components 300, and ensuring the continuity and stability of the temperature adjustment of the energy storage batteries 400.

[0120] In some embodiments of the present application, the liquid cooling component 300 includes:

[0121] An upper cover 310;

[0122] A bottom plate 320, and the bottom plate 320 and the upper cover 310 are combined to enclose a refrigerant flow channel 340;

[0123] A joint piece 330, on which an inlet channel communicating with the inlet of the refrigerant flow channel 340 and an outlet channel communicating with the outlet of the refrigerant flow channel 340 are formed.

[0124] The refrigerant flowing out of the heat dissipation circulation module 200 can enter the refrigerant flow path through the inlet channel on the connector 330 for circulating flow, and then exchanges heat with the energy storage battery 400 to adjust the temperature of the energy storage battery 400. Finally, it flows out through the outlet channel and returns to the heat dissipation circulation module 200.

[0125] In some embodiments of the present application, a refrigerant flow channel with a top opening is formed on the bottom plate 320, and the upper cover 310 is buckled on the bottom plate 320 to block the top opening and form the refrigerant flow path 340 together with the refrigerant flow channel.

[0126] In the description of the above embodiments, the specific features, structures, materials or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0127] The above are only the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A temperature control system for an energy storage device, characterized in that, Comprising: A water module with a water flow path formed inside. A heat dissipation circulation module, which is interconnected with the liquid cooling component at the bottom of the energy storage battery and forms a closed heat dissipation medium flow path for the circulation of the medium between the liquid cooling component. An intermediate heat exchanger, which is connected to the water module and the heat dissipation circulation module so that the water flowing through the water flow path exchanges heat with the medium in the heat dissipation medium flow path. A liquid cooling unit module, which is connected in parallel with the heat dissipation circulation module and is optionally connected to the liquid cooling component.

2. The temperature control system of the energy storage device according to claim 1, wherein The water module includes: An inlet pipe, on which a filtering device and an inlet pressure and temperature detection component are provided. And an outlet pipe, on which an outlet pressure and temperature detection component is provided. A water heat exchange pipeline, which is formed inside the intermediate heat exchanger and connects the inlet pipe and the outlet pipe.

3. The temperature control system for the energy storage device according to claim 2, wherein, An electric control valve is provided on the inlet pipe.

4. The temperature control system for an energy storage device according to claim 1, wherein The heat dissipation circulation module includes: A heat dissipation inlet pipe, on which a first pressure and temperature detection component and a safety valve are provided. A heat dissipation outlet pipe, on which a second pressure and temperature detection component and a filtering device are provided. A heat dissipation heat exchange pipe, which is formed inside the intermediate heat exchanger and connects the heat dissipation inlet pipe and the heat dissipation outlet pipe. A pumping component, which is arranged on the heat dissipation inlet pipe or the heat dissipation outlet pipe. A medium storage component, which is arranged on the heat dissipation inlet pipe or the heat dissipation outlet pipe.

5. The temperature control system for an energy storage device according to claim 1, wherein The heat dissipation medium in the heat dissipation medium flow path is an ethylene glycol aqueous solution or a propylene glycol aqueous solution.

6. The temperature control system for an energy storage device according to claim 4, wherein The heat dissipation inlet pipe includes an inlet pipe body and an inlet interface section connected to the end of the inlet pipe body. The heat dissipation outlet pipe includes an outlet pipe body and an outlet interface section connected to the end of the outlet pipe body. The liquid cooling unit module includes: a liquid cooling unit; And a liquid cooling inlet pipe, which is connected at the connection position of the inlet pipe body and the inlet interface section. And a liquid cooling outlet pipe, which is connected at the connection position of the outlet pipe body and the outlet interface section.

7. The temperature control system for an energy storage device according to claim 6, wherein A pipeline switching valve is provided at the connection position of the liquid cooling inlet pipe, the inlet pipe body and the inlet interface section.

8. The temperature control system for an energy storage device according to claim 7, wherein A first control component for controlling the opening and closing of the liquid cooling inlet pipe is provided on the liquid cooling inlet pipe. A second control component for controlling the opening and closing of the liquid cooling outlet pipe is provided on the liquid cooling outlet pipe.

9. An energy storage device, comprising: A cabinet body, in which a battery compartment is formed, and a plurality of battery compartments are provided, which are arranged in sequence from top to bottom along the height direction of the cabinet body. A plurality of energy storage batteries, which are respectively arranged in the plurality of battery compartments. A plurality of liquid cooling components, which are arranged at the bottom positions of the plurality of battery compartments. Characterized in that it further includes the temperature control system for an energy storage device according to any one of claims 1-8, and the plurality of liquid cooling components are all connected to the heat dissipation circulation module.

10. The energy storage device according to claim 9, characterized in that, The liquid cooling component includes: An upper cover; A bottom plate, the bottom plate and the upper cover are enclosed to form a refrigerant flow path; A connector, an inlet passage communicating with the inlet of the refrigerant flow path and an outlet passage communicating with the outlet of the refrigerant flow path are formed on the connector.

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