CN220527023U - Thermal management system for energy storage device - Google Patents

Abstract

The application discloses a thermal management system of energy storage device, energy storage device includes at least one battery, and energy storage device's thermal management system includes: the heat exchange module is provided with a cooling liquid flow passage and a heat exchange medium flow passage, the cooling liquid flow passage and the heat exchange medium flow passage exchange heat, and the cooling liquid flow passage is used for exchanging heat to the battery; the heat exchange water tank is provided with a water tank inlet and a water tank outlet, the water tank inlet can be communicated to the upstream of the tap water pipeline, the water tank outlet can be communicated to the downstream of the tap water pipeline, at least one part of the heat exchange medium flow passage is arranged in the heat exchange water tank, and the heat exchange medium in the heat exchange medium flow passage can exchange heat with tap water introduced into the heat exchange water tank in the heat exchange water tank. In the technical scheme of this application embodiment, through setting up the heat transfer water tank with the water supply pipeline intercommunication for running water can carry out the heat exchange with heat transfer medium, improves the heat transfer effect to the battery.

Description

Thermal management system for energy storage device

Technical Field

The present disclosure relates to the field of thermal management, and in particular, to a thermal management system for an energy storage device.

Background

In the related art, a heat management system of the energy storage device generally adopts an air cooling mode to dissipate heat so as to ensure normal operation of the battery, but in a high-temperature environment, the air cooling heat exchange efficiency is low, and the air cooling heat dissipation can lead the ambient temperature near the energy storage device to continuously rise so as to form vicious circle, thereby influencing the cooling effect on the battery and having room for improvement.

Disclosure of Invention

The present application aims to solve at least one of the technical problems existing in the prior art. It is therefore an object of the present application to provide a thermal management system for an energy storage device that can improve the heat transfer effect on a battery.

A thermal management system for an energy storage device according to an embodiment of a first aspect of the present application, the energy storage device comprising at least one battery, comprising: the heat exchange module is used for exchanging heat with the energy storage device and is provided with a cooling liquid flow passage and a heat exchange medium flow passage, the cooling liquid flow passage and the heat exchange medium flow passage exchange heat, and the cooling liquid flow passage is used for exchanging heat with the battery; the heat exchange water tank is provided with a water tank inlet and a water tank outlet, the water tank inlet can be communicated to the upstream of the tap water pipeline, the water tank outlet can be communicated to the downstream of the tap water pipeline, at least one part of the heat exchange medium flow channel is arranged in the heat exchange water tank, and the heat exchange medium in the heat exchange medium flow channel can exchange heat with tap water introduced into the heat exchange water tank in the heat exchange water tank.

According to the technical scheme, the heat exchange water tank communicated with the tap water pipeline is arranged, and at least one part of the heat exchange medium flow channel is arranged in the heat exchange water tank, so that tap water can exchange heat with the heat exchange medium in the heat exchange medium flow channel when flowing through the heat exchange water tank, the heat exchange effect on the heat exchange medium is improved, the heat exchange efficiency between the heat exchange medium and the cooling liquid is improved, the heat exchange effect on the cooling liquid is improved, and the heat exchange effect on the battery is improved; compared with a mode of radiating the heat exchange medium by using air, the running noise can be reduced by radiating the heat exchange medium through the running water, and after the running water in the heat exchange water tank absorbs the heat of the heat exchange medium, the running water can be radiated to the downstream of the running water pipeline along with the running of the running water, so that the influence of the heat exchange pipe on the environmental temperature caused by the radiation can be reduced, and the normal operation of the battery is ensured.

In some embodiments, the heat exchange module includes a heat exchange tube disposed within the heat exchange water tank and having a tube inlet and a tube outlet, and a heat exchange unit in communication with the tube inlet and the tube outlet to form the heat exchange medium flow passage. In the technical scheme, the heat exchange pipe is arranged in the heat exchange water tank, and the heat exchange pipe is communicated with the heat exchange unit to form a heat exchange medium flow channel, so that the heat exchange efficiency between tap water and the heat exchange medium can be improved, and the heating effect or the cooling effect on the heat exchange medium can be improved.

In some embodiments, the two ends of the heat exchange tube extend beyond the heat exchange water tank such that the tube inlet and the tube outlet are located outside the heat exchange water tank. In the technical scheme, the heat exchange unit can be communicated with the heat exchange pipe outside the heat exchange water tank, so that the separation effect of the heat exchange pipe and the inner space of the heat exchange water tank can be improved, the probability that a heat exchange medium flows into the heat exchange water tank due to leakage at the joint of the heat exchange pipe is reduced, the probability that tap water is polluted is further reduced, and the safety of user water in the downstream of a tap water pipeline can be improved.

In some embodiments, the heat exchange tube comprises a plurality of tube segments, and the plurality of tube segments are connected end to end and uniformly arranged in the heat exchange water tank. In the technical scheme, the heat exchange pipes are formed by arranging the pipe sections connected end to end in the heat exchange water tank, so that the heat exchange pipes are uniformly distributed in the heat exchange water tank, the heat exchange area of the heat exchange pipes and tap water can be increased, the heat exchange efficiency between the heat exchange medium and tap water can be improved, and the heating effect or cooling effect on the heat exchange medium can be improved.

In some embodiments, the heat exchange unit comprises a compressor, an expansion valve, and a first heat exchanger, wherein an outlet of the compressor is communicated with the pipe inlet, an inlet of the expansion valve is communicated with the pipe outlet, and the heat exchange medium flow passage is formed among the compressor, the heat exchange pipe, the expansion valve, and a heat exchange medium side of the first heat exchanger. In the technical scheme, the heat exchange medium flows between the heat exchange unit and the heat exchange pipe, so that the circulation flow of the heat exchange medium in the heat exchange medium flow channel can be realized, the heat exchange medium can exchange heat with tap water in the heat exchange water tank, and the cooling effect or the heating effect of the heat exchange medium can be improved.

In some embodiments, a reservoir is disposed between the heat exchange tube and the expansion valve. In the above technical scheme, through setting up the reservoir in the heat transfer medium runner, on the one hand, can adjust and balance the flow of the heat transfer medium in the heat transfer medium runner according to the cooling demand of battery, on the basis of improving the heating effect or the cooling effect to the heat transfer medium, can reduce the consumption of thermal management system, on the other hand, can reduce the impurity in the heat transfer medium runner, promote whole thermal management system's life.

In some embodiments, two ends of the cooling liquid side of the first heat exchanger are respectively communicated with the battery, a water pump is arranged between the cooling liquid side of the first heat exchanger and the battery, and the cooling liquid flow channel is formed among the cooling liquid side of the first heat exchanger, the water pump and the battery. In the technical scheme, the cooling liquid flows between the cooling liquid side of the first heat exchanger and the battery, so that the flowing circulation of the cooling liquid in the cooling liquid flow channel can be realized, and the temperature of the battery is raised or lowered.

In some embodiments, the heat exchange unit comprises a second heat exchanger, two ends of a heat exchange medium side of the second heat exchanger are respectively communicated with the pipe inlet and the pipe outlet, and the heat exchange medium flow passage is formed between the heat exchange medium side of the second heat exchanger and the heat exchange pipe. In the technical scheme, the heat exchange medium flows between the second heat exchanger and the heat exchange tube, so that the circulation flow of the heat exchange medium in the heat exchange medium flow channel can be realized, the heat exchange medium can exchange heat with tap water in the heat exchange water tank, and the cooling effect or the heating effect of the heat exchange medium can be improved.

In some embodiments, two ends of the cooling liquid side of the second heat exchanger are respectively communicated with the battery, a water pump is arranged between the cooling liquid side of the second heat exchanger and the battery, and the cooling liquid flow channel is formed among the cooling liquid side of the second heat exchanger, the water pump and the battery. In the technical scheme, the cooling liquid flows between the cooling liquid side of the second heat exchanger and the battery, so that the flowing circulation of the cooling liquid in the cooling liquid flow channel can be realized, and the temperature of the battery is raised or lowered.

In some embodiments, the heat exchange medium in the heat exchange medium flow passage is a refrigerant. In the technical scheme, the refrigerant circulation flow is adopted in the heat exchange medium flow channel, so that on one hand, the heat exchange efficiency of the heat exchange medium and the cooling liquid can be improved, the cooling effect on the battery is improved, and on the other hand, the refrigerant can directly flow back to the heat exchange unit through the heat exchange pipe, so that the structure of the heat management system is simplified, and the modularization cost of the heat management system is reduced.

In some embodiments, the heat exchange medium in the heat exchange medium flow passage is a cooling liquid. In the technical scheme, the cooling liquid is adopted to circularly flow in the heat exchange medium flow channel, and the cooling liquid can directly flow back to the second heat exchanger through the heat exchange pipe, so that the cost of the heat management system can be reduced.

In some embodiments, the plurality of batteries are arranged in parallel, the cooling fluid channel comprises a plurality of cooling fluid branches, the plurality of batteries and the plurality of cooling fluid branches are in one-to-one correspondence, and a water pump is arranged on each cooling fluid branch. In the technical scheme, independent heat exchange of each battery can be realized, and the heating effect or cooling effect of the battery is improved.

In some embodiments, a water storage tank or a tap water pump is arranged on the upstream of the tap water pipeline. In the technical scheme, the water storage tank or the tap water pump is arranged at the upstream of the tap water pipeline, so that the heat exchange capacity between tap water and the refrigerant can be improved, the influence of heat dissipation of the refrigerant on the ambient temperature of the energy storage device is reduced, the cooling effect on the battery is improved, and the normal operation of the energy storage device is ensured.

A thermal management system for an energy storage device according to an embodiment of a second aspect of the present application, the energy storage device comprising at least one battery, comprising: the heat exchange module is used for exchanging heat with the energy storage device and is provided with a cooling liquid flow passage, and the cooling liquid flow passage is used for exchanging heat with the battery; the heat exchange water tank is provided with a water tank inlet and a water tank outlet, the water tank inlet can be communicated to the upstream of the tap water pipeline, the water tank outlet can be communicated to the downstream of the tap water pipeline, a part of the cooling liquid flow channel is arranged in the heat exchange water tank, and cooling liquid in the cooling liquid flow channel can exchange heat with tap water introduced into the heat exchange water tank in the heat exchange water tank.

In the technical scheme of this embodiment, through setting up the heat transfer water tank with running water pipeline intercommunication to with a part setting of coolant liquid runner in heat transfer water tank, make running water can carry out the heat exchange with the coolant liquid in the coolant liquid runner when its heat transfer water tank of flowing through, improve the heat transfer effect to the coolant liquid, improve the heat exchange efficiency between coolant liquid and the battery, and then can improve the heat transfer effect to the battery.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is a schematic diagram of a thermal management system provided in some embodiments of the present application;

FIG. 2 is a schematic diagram of a thermal management system according to further embodiments of the present application;

FIG. 3 is a schematic structural diagram of a thermal management system according to further embodiments of the present application.

Reference numerals:

the heat management system 100, the cooling liquid flow channel 101, the heat exchange medium flow channel 102, the battery 200, the tap water pipeline 300, the water storage tank 310,

Heat exchange tube 11, tube inlet 111, tube outlet 112, compressor 12, expansion valve 13, first heat exchanger 14, second heat exchanger 15, reservoir 16,

a heat exchange water tank 20, a water tank inlet 21, a water tank outlet 22, and a water pump 30.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order.

Reference in the specification to "an embodiment" means 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 appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

The term "and/or" in this application is merely an association relation describing an associated object, and indicates that three relations may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In this application, the character "/" generally indicates that the associated object is an or relationship.

In the embodiments of the present application, the same reference numerals denote the same components, and in the interest of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, etc. dimensions of the various components in the embodiments of the present application, as well as the overall thickness, length, width, etc. dimensions of the integrated device, are illustrative only and should not be construed as limiting the present application in any way.

The term "plurality" as used herein refers to more than two (including two).

At present, from the market development prospect and application trend, the battery has the advantages of high energy density, high power density, multiple recycling times, long storage time and the like, and is widely used in various fields. The device is applied to various energy storage power supply systems such as hydraulic power, firepower, wind power, solar power stations and the like, and provides power for high-power devices, such as electric bicycles, electric motorcycles, electric automobiles and the like, and various fields such as military equipment, aerospace and the like.

In the related art, a heat management system of the energy storage device generally adopts an air cooling mode to dissipate heat so as to ensure that the energy storage device works normally, but in a high-temperature environment, the air cooling heat exchange efficiency is low, and the air cooling heat dissipation can lead to the rise of the ambient temperature near the energy storage device, so that the cooling effect of the energy storage device can be influenced.

In order to solve the above technical problems, the present application provides a thermal management system 100 of an energy storage device, as shown in fig. 1 and 2, and fig. 1 and 2 are schematic diagrams of various embodiments of the thermal management system 100 of the present application. The energy storage device includes at least one battery 200, and the thermal management system 100 includes: a heat exchange module for exchanging heat to the energy storage device and a heat exchange water tank 20.

The heat exchange module has a cooling liquid flow passage 101 and a heat exchange medium flow passage 102, the cooling liquid flow passage 101 and the heat exchange medium flow passage 102 exchange heat, and the cooling liquid flow passage 101 is used for exchanging heat to the battery 200.

The heat exchange tank 20 has a tank inlet 21 and a tank outlet 22, the tank inlet 21 may be communicated upstream of the tap water line 300, and the tank outlet 22 may be communicated downstream of the tap water line 300.

At least a portion of the heat exchange medium flow passage 102 is disposed in the heat exchange water tank 20, and the heat exchange medium in the heat exchange medium flow passage 102 can exchange heat with tap water introduced into the heat exchange water tank 20 in the heat exchange water tank 20.

The cooling liquid flow channel 101 is a flow channel for flowing cooling liquid, the cooling liquid can circularly flow in the cooling liquid flow channel 101, the heat exchange medium flow channel 102 is a flow channel for flowing heat exchange medium, the heat exchange medium can circularly flow in the heat exchange medium flow channel 102, the cooling liquid in the cooling liquid flow channel 101 can realize cooling or heating of the cooling liquid through heat exchange with the heat exchange medium in the heat exchange medium flow channel 102, and the cooling liquid in the cooling liquid flow channel 101 can flow through the battery 200 so as to cool or heat the battery 200; the energy storage device may include one battery 200, and the energy storage device may also include a plurality of batteries 200, and the plurality of batteries 200 may be connected in series or in parallel.

The water tank inlet 21 of the heat exchange water tank 20 is communicated with the upstream of the tap water pipeline 300, tap water in the tap water pipeline 300 can enter the heat exchange water tank 20 through the water tank inlet 21, the water tank outlet 22 of the heat exchange water tank 20 is communicated with the downstream of the tap water pipeline 300, tap water in the heat exchange water tank 20 can enter the tap water pipeline 300 through the water tank outlet 22, a water storage tank 310 can be arranged at the upstream of the tap water pipeline 300, a tap water pump can be arranged at the upstream of the tap water pipeline 300, so that water at the upstream of the tap water pipeline 300 can flow to the downstream of the tap water pipeline 300, tap water can flow through the heat exchange water tank 20 when tap water flows from the upstream to the downstream, and a branch can be arranged beside the tap water pipeline 300, and the heat exchange water tank 20 is arranged on the branch.

A part of the heat exchange medium flow passage 102 can be arranged in the heat exchange water tank 20, for example, the heat exchange medium flow passage 102 penetrates through the heat exchange water tank 20, or the whole heat exchange medium flow passage 102 can be arranged in the heat exchange water tank 20, when tap water flows through the heat exchange water tank 20, the tap water can submerge the part of the heat exchange medium flow passage 102 in the heat exchange water tank 20, and then the tap water can exchange heat with the heat exchange medium in the heat exchange medium flow passage 102 to realize cooling or heating of the heat exchange medium, for example, when the tap water temperature is lower than the temperature of the heat exchange medium, the heat exchange medium can be cooled in the heat exchange water tank 20, and therefore cooling of the heat exchange medium can be realized without arranging a fan and other structures, not only can cooling efficiency be improved, but also heat exchange noise can be reduced, and heat of the heat exchange medium is absorbed by the tap water, so that rising of the external environment temperature can be avoided to a certain extent.

In the technical solution of the embodiment of the present application, by setting the heat exchange water tank 20 that is communicated with the tap water pipeline 300 and setting at least a portion of the heat exchange medium flow channel 102 in the heat exchange water tank 20, tap water can exchange heat with the heat exchange medium in the heat exchange medium flow channel 102 when flowing through the heat exchange water tank 20, so as to improve the heat exchange effect on the heat exchange medium, improve the heat exchange efficiency between the heat exchange medium and the cooling liquid, and further improve the heat exchange effect on the cooling liquid, thereby improving the heat exchange effect on the battery 200; compared with the heat dissipation mode of the heat exchange medium by using air, the heat dissipation mode of the tap water can reduce working noise, after the tap water in the heat exchange water tank 20 absorbs heat of the heat exchange medium, the heat can be dissipated to the downstream of the tap water pipeline 300 along with the flow of the tap water, the influence of the heat dissipation of the heat exchange pipe 11 on the ambient temperature can be reduced, and the normal operation of the battery 200 is ensured.

As shown in fig. 1, in some embodiments, the heat exchange module includes a heat exchange tube 11 and a heat exchange unit, the heat exchange tube 11 being provided in the heat exchange water tank 20 and having a tube inlet 111 and a tube outlet 112, the heat exchange unit communicating with the tube inlet 111 and the tube outlet 112 to form the heat exchange medium flow passage 102.

The heat exchange unit includes one or more components and is located outside the heat exchange water tank 20, and the heat exchange unit may communicate with the heat exchange tube 11 through a tube inlet 111 and a tube outlet 112 to form the heat exchange medium flow passage 102.

After flowing through the heat exchange unit, the heat exchange medium in the heat exchange medium flow channel 102 can flow into the heat exchange tube 11 through the tube inlet 111, and the heat exchange medium in the heat exchange tube 11 can flow out through the tube outlet 112 to flow through the heat exchange unit again, so that the circulation flow of the heat exchange medium in the heat exchange medium flow channel 102 is realized.

In the heat exchange tube 11, the heat exchange medium can exchange heat with tap water in the heat exchange water tank 20 to heat or cool the heat exchange medium, and meanwhile, the tap water flows through the heat exchange water tank 20, so that the heat exchange efficiency between the tap water and the heat exchange medium can be improved, and the heating effect or cooling effect on the heat exchange medium can be improved.

Therefore, by arranging the heat exchange tube 11 in the heat exchange water tank 20 and communicating the heat exchange tube 11 with the heat exchange unit to form the heat exchange medium flow passage 102, the heat exchange efficiency between tap water and the heat exchange medium can be improved, and the heating effect or cooling effect on the heat exchange medium can be improved.

As shown in fig. 1, in some embodiments, both ends of the heat exchange pipe 11 protrude out of the heat exchange water tank 20 such that the pipe inlet 111 and the pipe outlet 112 are located outside the heat exchange water tank 20.

The heat exchange tube 11 has two ends extending out of the heat exchange water tank 20, so that the interface of the heat exchange tube 11 is located outside the heat exchange water tank 20 to form a tube inlet 111 and a tube outlet 112 respectively, that is, the heat exchange unit can be communicated with the heat exchange tube 11 outside the heat exchange water tank 20, the separation effect of the heat exchange tube 11 and the inner space of the heat exchange water tank 20 can be improved, the probability that the heat exchange medium flows into the heat exchange water tank 20 due to leakage at the interface of the heat exchange tube 11 is reduced, the probability that tap water is polluted is further reduced, and the safety of user water downstream of the tap water pipeline 300 can be improved.

As shown in fig. 1, in some embodiments, the heat exchange tube 11 includes a plurality of tube segments that are joined end to end and uniformly disposed within the heat exchange water tank 20.

The multiple tube sections of the heat exchange tube 11 comprise a first tube section, a second tube section, a third tube section and the like, the multiple tube sections are connected end to end, namely one end of the first tube section is connected with one end of the second tube section, the other end of the second tube section is connected with one end of the third tube section, and the like, the multiple tube sections are communicated with each other, wherein the extending directions of the two tube sections connected with each other can be different, for example, the two tube sections connected with each other can be mutually perpendicular, so that the whole heat exchange tube 11 is bent and extended in the heat exchange water tank 20, the heat exchange tube 11 is uniformly distributed in the heat exchange water tank 20, the heat exchange area of the heat exchange tube 11 and tap water can be increased, the heat exchange efficiency between a heat exchange medium and tap water can be improved, and the heating effect or cooling effect on the heat exchange medium can be improved.

Therefore, the heat exchange tubes 11 are formed by arranging the tube sections connected end to end in the heat exchange water tank 20, so that the heat exchange tubes 11 are uniformly distributed in the heat exchange water tank 20, the heat exchange area of the heat exchange tubes 11 and tap water can be increased, the heat exchange efficiency between the heat exchange medium and tap water can be improved, and the heating effect or cooling effect on the heat exchange medium can be improved.

As shown in fig. 1, in some embodiments, the heat exchange unit includes a compressor 12, an expansion valve 13, and a first heat exchanger 14, an outlet of the compressor 12 is in communication with a tube inlet 111, an inlet of the expansion valve 13 is in communication with a tube outlet 112, and a heat exchange medium flow path 102 is formed between the heat exchange medium sides of the compressor 12, the heat exchange tube 11, the expansion valve 13, and the first heat exchanger 14.

The first heat exchanger 14 here may be a plate heat exchanger, which has a high heat exchange efficiency, a compact and light construction and a long service life.

As shown in fig. 1, the outlet of the compressor 12 communicates with the tube inlet 111 of the heat exchange tube 11, the tube outlet 112 of the heat exchange tube 11 communicates with the inlet of the expansion valve 13, and the outlet of the expansion valve 13 communicates with the inlet of the compressor 12 through the heat exchange medium side of the first heat exchanger 14 to form the heat exchange medium flow passage 102.

When the temperature of tap water is lower than that of the heat exchange medium, the compressor 12 works and can drive the heat exchange medium to flow into the heat exchange tube 11 arranged in the heat exchange water tank 20, so that the heat exchange medium can exchange heat with tap water in the heat exchange water tank 20 to realize the cooling of the heat exchange medium, the cooled heat exchange medium flows through the heat exchange medium side of the first heat exchanger 14 through the expansion valve 13, and finally the heat exchange medium flows back into the compressor 12 again to realize the circulating flow of the heat exchange medium in the heat exchange medium flow channel 102.

Or when the tap water temperature is higher than the heat exchange medium temperature, the compressor 12 works, so that the heat exchange medium can be driven to flow into the heat exchange medium side of the first heat exchanger 14, the heat exchange medium subjected to heat exchange by the first heat exchanger 14 flows through the heat exchange tube 11 arranged in the heat exchange water tank 20 through the expansion valve 13, and finally the heat exchange medium flows back into the compressor 12 again, so that the circulation flow of the heat exchange medium in the heat exchange medium flow channel 102 is realized.

Therefore, the heat exchange medium flows between the heat exchange unit and the heat exchange tube 11, the circulation flow of the heat exchange medium in the heat exchange medium flow channel 102 can be realized, the heat exchange medium can exchange heat with tap water in the heat exchange water tank 20, and the cooling effect or the heating effect of the heat exchange medium can be improved.

As shown in fig. 1, in some embodiments, a reservoir 16 is provided between the heat exchange tube 11 and the expansion valve 13.

The liquid storage 16 is used for storing heat exchange media and filtering impurities in the heat exchange media, the liquid storage 16 is arranged between the heat exchange tube 11 and the expansion valve 13, impurities in the heat exchange media entering the expansion valve 13 and the first heat exchanger 14 can be filtered, so that the service life of the whole heat management system 100 is prolonged, meanwhile, the liquid storage 16 can supplement the heat exchange media to the heat exchange media flow channel 102 when the flow rate of the heat exchange media is reduced, the liquid storage 16 can store the heat exchange media when the flow rate of the heat exchange media is increased, so that the flow rate of the heat exchange media in the heat exchange media flow channel 102 is regulated and balanced according to the cooling requirement of the battery 200, and the power consumption of the heat management system 100 can be reduced on the basis of improving the heating effect or the cooling effect of the heat exchange media.

Therefore, by arranging the liquid reservoir 16 in the heat exchange medium flow passage 102, on one hand, the flow of the heat exchange medium in the heat exchange medium flow passage 102 can be regulated and balanced according to the cooling requirement of the battery 200, on the basis of improving the heating effect or cooling effect of the heat exchange medium, the power consumption of the heat management system 100 can be reduced, on the other hand, impurities in the heat exchange medium flow passage 102 can be reduced, and the service life of the whole heat management system 100 can be prolonged.

As shown in fig. 1, in some embodiments, two ends of the cooling liquid side of the first heat exchanger 14 are respectively communicated with the battery 200, a water pump 30 is arranged between the cooling liquid side of the first heat exchanger 14 and the battery 200, and a cooling liquid flow channel 101 is formed between the cooling liquid side of the first heat exchanger 14, the water pump 30 and the battery 200.

The battery 200 comprises a battery core, a cold plate and an insulating layer, wherein the cold plate is provided with a battery cooling flow passage, the battery cooling flow passage can circulate cooling liquid, the cold plate is positioned between the battery core and the insulating layer and can be in contact with the battery core, and the cooling liquid can heat exchange with the battery core to heat or cool the battery core, so that the battery 200 is heated or cooled.

An inlet of the water pump 30 may be in communication with an outlet of the cooling liquid side of the first heat exchanger 14, the water pump 30 being in communication with an inlet of the battery cooling flow passage, the outlet of the battery cooling flow passage being in communication with the inlet of the cooling liquid side of the first heat exchanger 14, thereby forming the cooling liquid flow passage 101.

When the water pump 30 works, the water pump 30 can drive the cooling liquid to flow near the battery cooling flow channel, the cooling liquid is subjected to heat exchange with the battery 200, the temperature rise or the temperature reduction of the battery 200 is realized, the cooling liquid subjected to heat exchange continuously flows to the cooling liquid side of the first heat exchanger 14, the cooling liquid can be subjected to heat exchange with a heat exchange medium positioned on the heat exchange medium side of the heat exchange medium flow channel 102, the cooling liquid is cooled or heated, and finally the cooling liquid flows back to the water pump 30, so that the flowing circulation of the cooling liquid in the cooling liquid flow channel 101 is realized, the heat exchange efficiency of the cooling liquid and the battery 200 can be improved, and the temperature rise effect or the temperature reduction effect of the battery 200 is improved.

Of course, the outlet of the water pump 30 may be connected to the inlet of the cooling liquid side of the first heat exchanger 14, the outlet of the cooling liquid side is connected to the inlet of the battery cooling flow channel, the outlet of the battery cooling flow channel is connected to the inlet of the water pump 30, when the water pump 30 works, the water pump 30 may drive the cooling liquid to flow to the cooling liquid side of the first heat exchanger 14, the cooling liquid may exchange heat with the heat exchange medium located on the heat exchange medium side of the heat exchange medium flow channel 102 to realize cooling or heating of the cooling liquid, then the cooling liquid flows through the battery cooling flow channel, and through heat exchange with the battery 200 to realize heating or cooling of the battery 200 until the cooling liquid flows back to the water pump 30 again, so as to realize circulation flow of the cooling liquid in the cooling liquid flow channel 101.

Thus, the coolant flows between the coolant side of the first heat exchanger 14 and the battery 200, and the coolant can circulate in the coolant flow field 101, thereby increasing or decreasing the temperature of the battery 200.

As shown in fig. 2, in some embodiments, the heat exchange unit includes a second heat exchanger 15, both ends of a heat exchange medium side of the second heat exchanger 15 are respectively communicated with a tube inlet 111 and a tube outlet 112, and a heat exchange medium flow passage 102 is formed between the heat exchange medium side of the second heat exchanger 15 and the heat exchange tube 11.

The second heat exchanger 15 here may be a plate heat exchanger, which has a high heat exchange efficiency, a compact and light construction and a long service life.

As shown in fig. 2, the outlet of the heat exchange medium side of the second heat exchanger 15 communicates with the tube inlet 111 of the heat exchange tube 11, and the inlet of the heat exchange medium side of the second heat exchanger 15 communicates with the tube outlet 112 of the heat exchange tube 11 to form the heat exchange medium flow passage 102; the heat exchange medium in the second heat exchanger 15 enters the heat exchange tube 11, and the heat exchange medium exchanges heat with tap water in the heat exchange water tank 20 to heat or cool the heat exchange medium, and the heat exchange medium after heat exchange flows back into the second heat exchanger 15 to realize the circulating flow of the heat exchange medium in the heat exchange medium flow channel 102, so that the cooling effect or heating effect of the heat exchange medium can be improved.

When the temperature of the tap water is lower than that of the heat exchange medium, the heat exchange medium in the heat exchange tube 11 can exchange heat with the tap water to realize the cooling of the heat exchange medium, and after the tap water in the heat exchange water tank 20 absorbs the heat of the heat exchange medium, the heat can be dispersed to the downstream of the tap water pipeline 300 along with the flow of the tap water, so that the influence of the heat dissipation of the heat exchange tube 11 on the ambient temperature can be reduced.

Therefore, the heat exchange medium flows between the second heat exchanger 15 and the heat exchange tube 11, so that the circulation flow of the heat exchange medium in the heat exchange medium flow channel 102 can be realized, the heat exchange medium can exchange heat with tap water in the heat exchange water tank 20, and the cooling effect or the heating effect of the heat exchange medium can be improved.

As shown in fig. 2, in some embodiments, both ends of the coolant side of the second heat exchanger 15 are respectively communicated with the battery 200, a water pump 30 is provided between the coolant side of the second heat exchanger 15 and the battery 200, and a coolant flow channel 101 is formed between the coolant side of the second heat exchanger 15, the water pump 30, and the battery 200.

An inlet of the water pump 30 may be in communication with an outlet of the second heat exchanger 15 on the coolant side, the water pump 30 being in communication with an inlet of the battery cooling flow passage, the outlet of the battery cooling flow passage being in communication with an inlet of the second heat exchanger 15 on the coolant side, thereby forming the coolant flow passage 101.

When the water pump 30 works, the water pump 30 can drive the cooling liquid to flow near the cooling flow passage of the battery, the cooling liquid is subjected to heat exchange with the battery 200, the temperature rise or the temperature reduction of the battery 200 is realized, the cooling liquid subjected to heat exchange continuously flows to the cooling liquid side of the second heat exchanger 15, the cooling liquid can be subjected to heat exchange with a heat exchange medium positioned on the heat exchange medium side of the heat exchange medium flow passage 102, the temperature reduction or the temperature rise of the cooling liquid is realized, and finally the cooling liquid flows back to the water pump 30, so that the flowing circulation of the cooling liquid in the cooling liquid flow passage 101 is realized, the heat exchange efficiency of the cooling liquid and the battery 200 can be improved, and the temperature rise effect or the temperature reduction effect of the battery 200 is improved.

Of course, the outlet of the water pump 30 may be connected to the inlet of the second heat exchanger 15 on the cooling liquid side, the outlet of the cooling liquid side is connected to the inlet of the battery cooling flow channel, the outlet of the battery cooling flow channel is connected to the inlet of the water pump 30, when the water pump 30 works, the water pump 30 may drive the cooling liquid to flow to the cooling liquid side of the second heat exchanger 15, the cooling liquid may exchange heat with the heat exchange medium on the heat exchange medium side of the heat exchange medium flow channel 102 to realize cooling or heating of the cooling liquid, then the cooling liquid flows through the battery cooling flow channel, and through heat exchange with the battery 200 to realize heating or cooling of the battery 200 until the cooling liquid flows back to the water pump 30 again, so as to realize circulation flow of the cooling liquid in the cooling liquid flow channel 101.

Thereby, the coolant flows between the coolant side of the second heat exchanger 15 and the battery 200, and the coolant can circulate in the coolant flow passage 101, thereby increasing or decreasing the temperature of the battery 200.

As shown in fig. 1 and 2, in some embodiments, the heat exchange medium within the heat exchange medium flow passage 102 is a refrigerant.

As shown in fig. 1, the refrigerant can circulate in the heat exchange medium flow passage 102, the heat exchange medium flow passage 102 is formed by communicating the heat exchange medium sides of the compressor 12, the heat exchange tube 11, the expansion valve 13 and the first heat exchanger 14, the compressor 12 can drive the refrigerant to flow back to the compressor 12 through the heat exchange tube 11, the expansion valve 13 and the first heat exchanger 14 in sequence, so as to realize the circulation flow of the refrigerant, be beneficial to improving the circulation flow rate of the refrigerant, and further improve the heat exchange efficiency of the refrigerant and the cooling liquid, and improve the cooling effect on the battery 200.

As shown in fig. 2, the heat exchange medium flow channel 102 is formed by communicating the heat exchange tube 11 with the second heat exchanger 15, and the refrigerant directly flows back to the second heat exchanger 15 after passing through the heat exchange tube 11, so as to realize the circulation flow of the refrigerant, simplify the structure of the thermal management system 100, further facilitate the miniaturization of the thermal management system 100, and reduce the modularized cost of the thermal management system 100.

Therefore, by adopting the circulating flow of the refrigerant in the heat exchange medium flow channel 102, on one hand, the heat exchange efficiency of the heat exchange medium and the cooling liquid can be improved, the cooling effect on the battery 200 can be improved, and on the other hand, the refrigerant can directly flow back to the heat exchange unit through the heat exchange tube 11, so that the structure of the heat management system 100 is simplified, and the modularization cost of the heat management system 100 is reduced.

In other embodiments, as shown in fig. 2, the heat exchange medium in the heat exchange medium flow path 102 is a cooling fluid.

As shown in fig. 2, the heat exchange medium flow channel 102 is formed by communicating the heat exchange tube 11 with the second heat exchanger 15, the cooling liquid is introduced into the heat exchange medium flow channel 102, and flows back to the second heat exchanger 15 directly after passing through the heat exchange tube 11, so as to realize the circulation flow of the cooling liquid, simplify the structure of the thermal management system 100, thereby being beneficial to the miniaturization of the thermal management system 100 and reducing the cost of the thermal management system 100; the cooling liquid can be water, and water is adopted as the cooling liquid, so that the cost can be further reduced, the pollution to the environment can be reduced, the influence of the leakage heat exchange medium of the heat exchange tube 11 on the tap water quality can be reduced, and the safety of the user water downstream of the tap water pipeline 300 can be improved; in addition, since the cooling liquid channel 101 is circulated with the cooling liquid, the same medium is circulated in each module in the thermal management system 100, so that the cost of the thermal management system 100 can be further reduced.

Thus, by employing a circulating flow of coolant within the heat exchange medium flow passage 102, and the coolant may flow directly back to the second heat exchanger 15 through the heat exchange tube 11, the cost of the thermal management system 100 may be reduced.

As shown in fig. 1-3, in some embodiments, the battery 200 includes a plurality of batteries 200 arranged in parallel, the coolant flow path 101 includes a plurality of coolant branches, and the plurality of batteries 200 and the plurality of coolant branches are in one-to-one correspondence, and each coolant branch is provided with a water pump 30.

The battery 200 can be battery monomer, battery module or battery package, and a plurality of batteries 200 parallel arrangement can form energy memory, and coolant flow channel 101 includes many parallelly connected coolant branch roads, and every coolant branch road corresponds with a battery 200 respectively for coolant in every coolant branch road carries out the heat exchange with a battery 200, realizes the intensification or cooling to single battery 200, and all is provided with water pump 30 on every coolant branch road, in order to realize the individual drive to coolant flow in every coolant branch road through water pump 30, improves the intensification effect or the cooling effect to battery 200.

Thus, it is possible to perform heat exchange for each battery 200 individually, and to improve the temperature raising effect or the temperature lowering effect for the battery 200.

As shown in fig. 1-3, in some embodiments, a water storage tank 310 or tap water pump is provided upstream of the tap water line 300.

The water storage tank 310 may be a roof water tower, and is used for storing water to increase the water pressure of tap water, and the upstream of the tap water pipeline 300 may also be provided with a tap water pump, where the tap water pump may drive tap water to flow to increase the water pressure of tap water, so as to be beneficial to increasing the flow rate of tap water, and to increase the flow rate of tap water, and further to be beneficial to increasing the heat exchange amount between tap water and the heat exchange medium, where when the water temperature of tap water is lower than the temperature of the heat exchange medium, the heat of the heat exchange medium may enter tap water and be dispersed to the downstream of the tap water pipeline 300, so as to reduce the influence of heat dissipation of the heat exchange medium on the ambient temperature of the energy storage device, and further to be beneficial to increasing the cooling effect of the battery 200.

Therefore, by arranging the water storage tank 310 or the tap water pump at the upstream of the tap water pipeline 300, the heat exchange amount between tap water and the refrigerant can be improved, the influence of heat dissipation of the refrigerant on the ambient temperature of the energy storage device can be reduced, the cooling effect on the battery 200 can be improved, and the normal operation of the energy storage device can be ensured.

As shown in fig. 3, fig. 3 is a schematic diagram of a thermal management system 100 provided in accordance with further embodiments of the present application, the thermal management system 100 of an energy storage device according to an embodiment of the second aspect of the present application, the energy storage device including at least one battery 200, the thermal management system 100 comprising: a heat exchange module for exchanging heat to the energy storage device and a heat exchange water tank 20.

The heat exchange module has a coolant flow passage 101, and the coolant flow passage 101 is used for exchanging heat with the battery 200.

The heat exchange tank 20 has a tank inlet 21 and a tank outlet 22, the tank inlet 21 may be communicated upstream of the tap water line 300, and the tank outlet 22 may be communicated downstream of the tap water line 300.

Wherein, a part of the cooling liquid flow channel 101 is arranged in the heat exchange water tank 20, and the cooling liquid in the cooling liquid flow channel 101 can exchange heat with tap water which is introduced into the heat exchange water tank 20 in the heat exchange water tank 20.

The cooling liquid flow channel 101 is a flow channel through which cooling liquid flows, the cooling liquid can circulate in the cooling liquid flow channel 101, the cooling liquid in the cooling liquid flow channel 101 can realize cooling or heating of the cooling liquid through heat exchange with tap water in the heat exchange water tank 20, and the cooling liquid in the cooling liquid flow channel 101 can flow through the battery 200 so as to cool or heat the battery 200.

The water tank inlet 21 of the heat exchange water tank 20 is communicated with the upstream of the tap water pipeline 300, tap water in the tap water pipeline 300 can enter the heat exchange water tank 20 through the water tank inlet 21, the water tank outlet 22 of the heat exchange water tank 20 is communicated with the downstream of the tap water pipeline 300, tap water in the heat exchange water tank 20 can enter the tap water pipeline 300 through the water tank outlet 22, a water storage tank 310 can be arranged at the upstream of the tap water pipeline 300, a tap water pump can be arranged at the upstream of the tap water pipeline 300, so that water at the upstream of the tap water pipeline 300 can flow to the downstream of the tap water pipeline 300, tap water can flow through the heat exchange water tank 20 when tap water flows from the upstream to the downstream, and a branch can be arranged beside the tap water pipeline 300, and the heat exchange water tank 20 is arranged on the branch.

Part of the cooling liquid flow channel 101 can be arranged in the heat exchange water tank 20, for example, the heat exchange water tank 20 is penetrated by the cooling liquid flow channel 101, when tap water flows through the heat exchange water tank 20, the tap water can submerge the part of the cooling liquid flow channel 101 in the heat exchange water tank 20, and then the tap water can exchange heat with cooling liquid in the cooling liquid flow channel 101 to realize cooling or heating of the cooling liquid, for example, when the temperature of the tap water is lower than that of the cooling liquid, the cooling liquid can be cooled in the heat exchange water tank 20, so that the cooling of the cooling liquid can be realized without arranging a fan, a heat exchanger and other structures, the cooling efficiency can be improved, the heat exchange noise can be reduced, and meanwhile, the heat of the cooling liquid is absorbed by the tap water, thereby avoiding the rise of the external environment temperature to a certain extent.

In the technical scheme of the embodiment of the application, through setting up the heat exchange water tank 20 that communicates with the running water pipeline 300 to with a part of coolant flow channel 101 set up in heat exchange water tank 20, make running water can carry out the heat exchange with the coolant in the coolant flow channel 101 when its heat exchange water tank 20 that flows through, improve the heat transfer effect to the coolant, improve the heat exchange efficiency between coolant and the battery 200, and then can improve the heat transfer effect to the battery 200.

A thermal management system 100 for an energy storage device according to one embodiment of the present application is described below in conjunction with fig. 1.

The energy storage device comprises a plurality of batteries 200, the thermal management system 100 is used for cooling the batteries 200, as shown in fig. 1, the thermal management system 100 comprises a heat exchange tube 11, a heat exchange unit and a heat exchange water tank 20, the heat exchange unit comprises a compressor 12, an expansion valve 13, a first heat exchanger 14 and a liquid storage tank 16, the first heat exchanger 14 is provided with a heat exchange medium side and a cooling liquid side, the heat exchange tube 11 is arranged in the heat exchange water tank 20, two ends of the heat exchange tube 11 extend out of the heat exchange water tank 20, two ends of the heat exchange tube 11 respectively form a tube inlet 111 and a tube outlet 112, the outlet of the compressor 12 is communicated with the tube inlet 111, the tube outlet 112 is communicated with the inlet of the expansion valve 13 through the liquid storage tank 16, the outlet of the expansion valve 13 is communicated with the inlet of the compressor 12 through the heat exchange medium side of the first heat exchange tube 14 to form a heat exchange medium runner 102, and the heat exchange medium runner 102 circulates with a refrigerant.

A water pump 30 is arranged between the cooling liquid side of the first heat exchanger 14 and the battery 200, the cooling liquid side of the first heat exchanger 14, the water pump 30 and the battery 200 are communicated to form a cooling liquid flow channel 101, and cooling liquid circulates in the cooling liquid flow channel 101; the heat exchange tank 20 has a tank inlet 21 and a tank outlet 22, the upstream of the tap water line 300 being in communication with the tank inlet 21 and the tank outlet 22 being in communication with the downstream of the tap water line 300.

When the temperature of the battery 200 is higher, the compressor 12 is controlled to work, the compressor 12 drives the refrigerant to flow into the heat exchange tube 11, the refrigerant in the heat exchange tube 11 exchanges heat with tap water in the heat exchange water tank 20 to realize cooling of the refrigerant, meanwhile, the tap water flows through the heat exchange water tank 20 to dissipate heat to the downstream of the tap water pipeline 300, the cooled refrigerant sequentially flows back to the compressor 12 through the liquid storage 16, the expansion valve 13 and the heat exchange medium side of the first heat exchanger 14, and in the first heat exchanger 14, the cooled refrigerant exchanges heat with cooling liquid in the cooling liquid pipeline to realize cooling of the cooling liquid; meanwhile, the water pump 30 works, the water pump 30 drives the cooling liquid on the cooling liquid side of the first heat exchanger 14 to flow back to the cooling liquid side of the first heat exchanger 14 through the water pump 30 and the battery 200 in sequence, and in the battery 200, the cooled cooling liquid exchanges heat with the battery 200 to realize the cooling of the battery 200.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the embodiments, and are intended to be included within the scope of the claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (14)

1. A thermal management system for an energy storage device, the energy storage device including at least one battery, comprising:

the heat exchange module is used for exchanging heat with the energy storage device and is provided with a cooling liquid flow passage and a heat exchange medium flow passage, the cooling liquid flow passage and the heat exchange medium flow passage exchange heat, and the cooling liquid flow passage is used for exchanging heat with the battery;

A heat exchange water tank having a water tank inlet and a water tank outlet, the water tank inlet being connectable to the upstream of the tap water line, the water tank outlet being connectable to the downstream of the tap water line,

at least one part of the heat exchange medium flow passage is arranged in the heat exchange water tank, and the heat exchange medium in the heat exchange medium flow passage can exchange heat with tap water introduced into the heat exchange water tank in the heat exchange water tank.

2. The thermal management system of an energy storage device of claim 1, wherein the heat exchange module comprises a heat exchange tube disposed within the heat exchange water tank and having a tube inlet and a tube outlet, and a heat exchange unit in communication with the tube inlet and the tube outlet to form the heat exchange medium flow passage.

3. The thermal management system of an energy storage device of claim 2,

the two ends of the heat exchange tube extend out of the heat exchange water tank so that the tube inlet and the tube outlet are positioned outside the heat exchange water tank.

4. The thermal management system of an energy storage device of claim 2,

the heat exchange tube comprises a plurality of tube sections, and the tube sections are connected end to end and are uniformly arranged in the heat exchange water tank.

5. The thermal management system of an energy storage device of claim 2,

the heat exchange unit comprises a compressor, an expansion valve and a first heat exchanger, wherein an outlet of the compressor is communicated with an inlet of the pipe, an inlet of the expansion valve is communicated with an outlet of the pipe, and a heat exchange medium flow channel is formed among the compressor, the heat exchange pipe, the expansion valve and a heat exchange medium side of the first heat exchanger.

6. The thermal management system of an energy storage device of claim 5,

and a liquid reservoir is arranged between the heat exchange tube and the expansion valve.

7. The thermal management system of an energy storage device of claim 5,

the two ends of the cooling liquid side of the first heat exchanger are respectively communicated with the battery, a water pump is arranged between the cooling liquid side of the first heat exchanger and the battery, and a cooling liquid flow channel is formed between the cooling liquid side of the first heat exchanger, the water pump and the battery.

8. The thermal management system of an energy storage device of claim 2,

the heat exchange unit comprises a second heat exchanger, two ends of a heat exchange medium side of the second heat exchanger are respectively communicated with the pipe inlet and the pipe outlet, and a heat exchange medium flow channel is formed between the heat exchange medium side of the second heat exchanger and the heat exchange pipe.

9. The thermal management system of an energy storage device of claim 8,

the two ends of the cooling liquid side of the second heat exchanger are respectively communicated with the battery, a water pump is arranged between the cooling liquid side of the second heat exchanger and the battery, and a cooling liquid flow channel is formed among the cooling liquid side of the second heat exchanger, the water pump and the battery.

10. The thermal management system of an energy storage device of any of claims 1-9,

the heat exchange medium in the heat exchange medium flow passage is a refrigerant.

11. The thermal management system of an energy storage device of claim 8 or 9,

the heat exchange medium in the heat exchange medium flow channel is cooling liquid.

12. The thermal management system of an energy storage device of claim 1,

the battery includes a plurality of, and a plurality of the battery is parallelly connected to be arranged, the coolant flow path includes a plurality of coolant branch road, a plurality of the battery with a plurality of coolant branch road one-to-one is equipped with the water pump on every coolant branch road.

13. The thermal management system of an energy storage device of claim 1,

and a water storage tank or a tap water pump is arranged at the upstream of the tap water pipeline.

14. A thermal management system for an energy storage device, the energy storage device including at least one battery, comprising:

the heat exchange module is used for exchanging heat with the energy storage device and is provided with a cooling liquid flow passage, and the cooling liquid flow passage is used for exchanging heat with the battery;

a heat exchange water tank having a water tank inlet and a water tank outlet, the water tank inlet being connectable to the upstream of the tap water line, the water tank outlet being connectable to the downstream of the tap water line,

and part of the cooling liquid flow channel is arranged in the heat exchange water tank, and cooling liquid in the cooling liquid flow channel can exchange heat with tap water introduced into the heat exchange water tank in the heat exchange water tank.