Energy-coupling water cooling device

Abstract

The utility model discloses energy-coupled water-cooling equipment, the energy-coupled water-cooling equipment is communicated with a power supply module group and a power battery pack through pipelines, the energy-coupled water-cooling equipment has a respective cooling mode and an energy coupling mode, and the energy-coupled water-cooling equipment comprises a water tank, a cooling device and a valve mechanism, the cooling device comprises a first cooling piece and a second cooling mechanism, the valve mechanism comprises a three-way valve set, and the three-way valve set comprises a first three-way valve and a second three-way valve. In a high-temperature environment, the power supply module group and the power battery pack can be cooled respectively, and in a low-temperature environment, heat generated by operation of the power supply module group is utilized to heat the power battery pack, so that conversion and utilization of low-grade energy are realized, and the power supply module group does not need to be cooled additionally; and the power battery pack does not need to be additionally heated, so that energy is effectively saved, the treatment cost is reduced, and the effects of energy conservation and emission reduction are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to temperature control technical field especially relates to the water cooling equipment of possible quantity coupling. BACKGROUND

[0002] With the high speed development of new energy automobile and the support of national policy, the charging infrastructure has formed a certain scale in the country, and the battery replacement and charging energy supplement modes form effective scene complementation, and the penetration rate continues to improve because the battery replacement can meet the demand of fast replacement and fast walking of users. The power battery group and power module group, which are core components of the battery replacement station as a form of energy storage, will generate a large amount of heat in the working process. The power module group often needs to be cooled all year round, and the power battery group also needs to be cooled due to the influence of high temperature environment and its own operation heat. The cooling power required by the power battery group is larger than that of the power module group, and the optimal working temperature of the two is different, so the two need to be cooled separately.

[0003] Because the optimal working temperature of the power battery group is 20~30℃, in order to prevent the temperature from being too low to affect its performance in low temperature environment, a PTC heater is usually needed to perform heating operation, and based on the cooling demand of the power module group, the energy consumption of the whole system is relatively large, and the processing cost is relatively high. UTILITY MODEL CONTENT

[0004] In order to solve the above technical problems and achieve at least one advantage of the utility model, the utility model provides a water cooling equipment with possible quantity coupling, which is communicated with a power module group and a power battery group through pipelines, the power module group has a first water inlet and a first water outlet, the power battery group has a second water inlet and a second water outlet, the water cooling equipment with possible quantity coupling has respective cooling modes and energy coupling modes, the water cooling equipment with possible quantity coupling can be switched between the respective cooling modes and the energy coupling modes, and the water cooling equipment with possible quantity coupling comprises:

[0005] A water tank, the water tank has a first inlet, a first outlet, a second inlet and a second outlet, the first inlet is communicated with the first water outlet of the power module group through a pipeline, and the cooling liquid which exchanges heat with the power module group to absorb heat is discharged from the first water outlet and enters the water tank through the first inlet, and the first outlet is communicated with the first water inlet through a pipeline;

[0006] A cooling device, the cooling device comprises:

[0007] a first cooling member installed on a pipeline between the first outlet and the first water inlet, the first cooling member having a first inlet and a first outlet, the first outlet being communicated with the first inlet through a pipeline, the first outlet being communicated with the first water inlet through a pipeline, after the cooling liquid absorbing heat from the water tank is discharged from the first outlet and enters the first cooling member through the first inlet, the cooling liquid absorbing heat can exchange heat in the first cooling member to change into cooling liquid losing heat, so as to provide the power module group with cooling liquid losing heat from the first cooling member;

[0008] a second cooling mechanism, the second cooling mechanism comprising a second cooling member, the second cooling member having a second inlet and a second outlet, the second inlet being communicated with the second water outlet through a pipeline, the second outlet being communicated with the second water inlet through a pipeline, the cooling liquid absorbing heat from the power battery pack is discharged from the second water outlet and enters the second cooling member through the second inlet, the cooling liquid absorbing heat can exchange heat in the second cooling member to change into cooling liquid losing heat, so as to provide the power battery pack with cooling liquid losing heat from the second cooling member;

[0009] a valve mechanism, the valve mechanism comprising a three-way valve set, the three-way valve set comprising:

[0010] a first three-way valve, the first three-way valve having a through outlet, a first interface and a first port, the first port being communicated with the second outlet through a pipeline, the first three-way valve being installed on a pipeline between the second outlet and the second water inlet, the first interface being communicated with the second outlet through a pipeline, the through outlet being communicated with the second water inlet through a pipeline, the first three-way valve being arranged to communicate either the first interface or the first port with the through outlet;

[0011] a second three-way valve, the second three-way valve having a through inlet, a second interface and a second port, the second port being communicated with the second inlet through a pipeline, the second three-way valve being installed on a pipeline between the second inlet and the second water outlet, the through inlet being communicated with the second water outlet through a pipeline, the second interface being communicated with the second inlet through a pipeline, the second three-way valve being arranged to communicate either the second interface or the second port with the through inlet;

[0012] In the case that the water cooling device in the possible quantity coupling mode, the first cooling part and the second cooling mechanism stop running, the first port and the outlet communicate, the inlet and the second port communicate, the cooling liquid absorbing heat and the cooling liquid losing heat exchanged with the power module group and the power battery group respectively enter the water tank through the first inlet and the second inlet to mix in the water tank to obtain the medium temperature cooling liquid, and the medium temperature cooling liquid is discharged from the first outlet and the second outlet respectively.

[0013] According to an embodiment of the present application, the second cooling part is arranged to exchange heat between the cooling liquid absorbing heat discharged from the second outlet and the low-temperature and low-pressure liquid refrigerant to obtain the cooling liquid losing heat and the low-temperature and low-pressure gaseous refrigerant, the second cooling mechanism comprises a cold source supply assembly, the cold source supply assembly comprises a compressor, a condenser and an expansion valve, the second cooling part communicates with the compressor through a pipeline, the low-temperature and low-pressure gaseous refrigerant is discharged from the second cooling part and enters the compressor, the compressor is arranged to convert the low-temperature and low-pressure gaseous refrigerant into high-temperature and high-pressure gaseous refrigerant, the compressor communicates with the condenser through a pipeline, the high-temperature and high-pressure gaseous refrigerant is discharged from the compressor and enters the condenser, the condenser is arranged to convert the high-temperature and high-pressure gaseous refrigerant into high-temperature and high-pressure liquid refrigerant, the condenser communicates with the expansion valve through a pipeline, the high-temperature and high-pressure liquid refrigerant is discharged from the condenser and enters the expansion valve, the expansion valve is arranged to convert the high-temperature and high-pressure liquid refrigerant into low-temperature and low-pressure liquid refrigerant, and the expansion valve communicates with the second cooling part through a pipeline to supply the low-temperature and low-pressure liquid refrigerant to the second cooling part.

[0014] According to an embodiment of the present application, the water cooling device in the possible quantity coupling mode comprises a pump group, the pump group comprises a first water pump and a second water pump, the first water pump is installed on a pipeline between the first outlet and the first water inlet, and the first water pump is used to guide the cooling liquid absorbing heat or the medium temperature cooling liquid in the water tank to be discharged from the first outlet to flow to the first water inlet; the second water pump is installed on a pipeline between the second outlet and the first port, and the second water pump is used to guide the medium temperature cooling liquid in the water tank to be discharged from the second outlet to flow to the first three-way valve.

[0015] According to an embodiment of the utility model, the pump group further includes a third water pump, the third water pump is installed on the pipeline between the second inlet and the second water outlet or on the pipeline between the second outlet and the second water inlet, and the third water pump is used for guiding the cooling liquid of lost heat discharged by the second cooling member to the power battery group or guiding the cooling liquid of absorbed heat discharged by the power battery group to the second cooling member.

[0016] According to an embodiment of the utility model, the on-demand coupled water cooling device includes two filters, one filter is installed on the pipeline between the first water pump and the first outlet and on the pipeline between the second water pump and the second outlet, and the filter is used for filtering the cooling liquid of absorbed heat discharged by the first outlet or the medium-temperature cooling liquid or the medium-temperature cooling liquid discharged by the second outlet.

[0017] According to an embodiment of the utility model, the on-demand coupled water cooling device includes a detection mechanism, the detection mechanism includes a temperature detection assembly, the temperature detection assembly includes a first temperature sensor, the first temperature sensor is installed on the pipeline between the first outlet and the first water inlet, the first temperature sensor is used for detecting the temperature of the cooling liquid of lost heat obtained by heat exchange of the first cooling member, the first temperature sensor is in communication connection with a controller, the first water pump and the first cooling member are controllably connected to the controller, and the controller adjusts the running speed of the first water pump and the first cooling member according to the feedback of the first temperature sensor.

[0018] According to an embodiment of the utility model, the temperature detection assembly further includes a second temperature sensor, the second temperature sensor is installed on the water tank, the second temperature sensor is used for detecting the temperature of the medium-temperature cooling liquid in the water tank, the second temperature sensor is in communication connection with the controller, the second water pump is controllably connected to the controller, and the controller adjusts the running speed of the second water pump according to the feedback of the second temperature sensor.

[0019] According to an embodiment of the utility model, the detection mechanism further includes a pressure sensor, the pressure sensor is installed on the pipeline connected with the first inlet or on the pipeline connected with the first outlet, the pressure sensor is used for detecting the hydraulic pressure in the pipeline connected with the first inlet or the pipeline connected with the first outlet, the pressure sensor is in communication connection with the controller, the controller is in control connection with a first alarm, and the controller selectively controls the first alarm to run according to the feedback of the pressure sensor.

[0020] According to the utility model one embodiment, the detection mechanism still includes liquid level sensor, liquid level sensor is installed to water tank, liquid level sensor is used for detecting the liquid level height in water tank, liquid level sensor with controller communication connection, the controller with second alarm controller connection, the controller according to the feedback of liquid level sensor selectively controls second alarm operation.

[0021] According to the utility model one embodiment, the valve mechanism still includes two switch valves, two switch valves are installed on the pipeline connected with first outlet respectively, on the pipeline connected with second outlet, the cooling liquid of absorbing heat or medium temperature cooling liquid discharged by first outlet or medium temperature cooling liquid discharged by second outlet first flows through corresponding switch valve, and the switch valve is used for controlling the liquid discharge condition of first outlet or second outlet. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The structure schematic diagram of the water cooling equipment of the utility model possible coupling is shown.

[0023] Figure 2 The local structure schematic diagram of the water cooling equipment of the utility model possible coupling under respective cooling mode is shown.

[0024] Figure 3 Another local structure schematic diagram of the water cooling equipment of the utility model possible coupling under respective cooling mode is shown.

[0025] Figure 4 The structure schematic diagram of the water cooling equipment of the utility model possible coupling under energy coupling mode is shown.

[0026] Figure 5 The structure schematic diagram of the first cooling piece of the utility model is shown. DETAILED DESCRIPTION

[0027] The following description is used to disclose the utility model to enable those skilled in the art to realize the utility model. The preferred embodiments in the following description are only as examples, and other obvious variants can be conceived by those skilled in the art. The basic principles of the utility model defined in the following description can be applied to other implementation schemes, variant schemes, improved schemes, equivalent schemes and other technical schemes without departing from the spirit and scope of the utility model.

[0028] Those skilled in the art shall understand that in the disclosure of the utility model, the orientation or position relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation on the utility model.

[0029] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0030] Reference Figure 1 The water-cooled equipment coupled with the possible quantity according to a preferred embodiment of the utility model will be described in detail below, which is communicated with a power module group 80 and a power battery group 90 through pipelines, the power module group 80 has a first water inlet 801 and a first water outlet 802, and the power battery group 90 has a second water inlet 901 and a second water outlet 902.

[0031] Those skilled in the art can understand that the optimal working temperature of the power module group 80 is 50-75 DEG C, and the optimal working temperature of the power battery group 90 is 20-30 DEG C. Since the power module group 80 itself generates a large amount of heat during operation, it needs to be cooled all year round, and the power battery group 90 is also affected by the high-temperature environment and the heat generated by itself during operation, and also needs to be cooled, in order to ensure that the power module group 80 and the power battery group 90 are kept at their respective optimal working temperatures, the two are usually cooled respectively. In addition, in a low-temperature environment, the performance of the power battery group 90 is affected, so the power battery group 90 needs to be heated.

[0032] Reference Figure 1 、 Figure 2 and Figure 4 The water-cooled equipment coupled with the possible quantity includes a water tank 10, the water tank 10 has a first inlet 101 and a first outlet 102, the first inlet 101 is communicated with the first water outlet 802 of the power module group 80 through pipelines, and the cooling liquid that exchanges heat with the power module group 80 to absorb heat is discharged from the first water outlet 802 and enters the water tank 10 through the first inlet 101. The first outlet 102 is communicated with the first water inlet 801 through pipelines.

[0033] The possible quantity coupling water cooling device comprises a cooling device 20, the cooling device 20 comprises a first cooling part 21, the first cooling part 21 is installed on the pipeline between the first outlet 102 and the first water inlet 801.The first cooling part 21 has a first inlet 2101 and a first outlet 2102, the first outlet 102 is communicated with the first inlet 2101 through the pipeline, and the first outlet 2102 is communicated with the first water inlet 801 through the pipeline.After the cooling liquid absorbing heat flowing into the water tank 10 is discharged from the first outlet 102 and enters the first cooling part 21 through the first inlet 2101, the cooling liquid absorbing heat can exchange heat in the first cooling part 21 and change into the cooling liquid losing heat, so as to provide the cooling liquid losing heat as the cold source from the first cooling part 21 to the power module group 80, so as to realize cooling of the power module group 80, and prevent the working temperature from being too high to affect the working efficiency and service life.

[0034] Preferably, the first cooling part 21 is implemented as a plate-fin radiator, and the plate-fin radiator drives air flow to take away the heat of the cooling liquid absorbing heat, so as to obtain the cooling liquid losing heat.

[0035] Reference Figure 5 As preferably, the first cooling part 21 is implemented as an L-shaped plate-fin radiator, compared with a straight radiator, the design is increased in the width direction while the size in the length direction remains unchanged, so as to increase the internal flow channel and improve the heat exchange effect in the limited arrangement space area.

[0036] Reference Figure 1 、 Figure 3 and Figure 4 The cooling device 20 comprises a second cooling mechanism 22, the second cooling mechanism 22 comprises a second cooling part 221, the second cooling part 221 has a second inlet 22101 and a second outlet 22102, the second inlet 22101 is communicated with the second water outlet 902 of the power battery group 90 through the pipeline, and the second outlet 22102 is communicated with the second water inlet 901 through the pipeline.The cooling liquid absorbing heat exchanged with the power battery group 90 is discharged from the second water outlet 902 and enters the second cooling part 221 through the second inlet 22101, and the cooling liquid absorbing heat can exchange heat in the second cooling part 221 and change into the cooling liquid losing heat, so as to provide the cooling liquid losing heat as the cold source from the second cooling part 221 to the power battery group 90, so as to realize cooling of the power battery group 90, and prevent the working temperature from being too high to affect the working efficiency and service life.

[0037] It is worth mentioning that the water tank 10 also has a second inlet 103 and a second outlet 104. The water cooling device capable of coupling also includes a valve mechanism 30, which includes a three-way valve group 31, the three-way valve group 31 including a first three-way valve 311, the first three-way valve 311 having a through outlet 31101, a first interface 31102, and a first through port 31103, the first through port 31103 being in communication with the second outlet 104 through a pipeline. The first three-way valve 311 is installed on the pipeline between the second guide outlet 22102 and the second water inlet 901, the first interface 31102 being in communication with the second guide outlet 22102 through a pipeline, and the through outlet 31101 being in communication with the second water inlet 901 through a pipeline. The first three-way valve 311 is configured to allow either the first interface 31102 or the first through port 31103 to be in communication with the through outlet 31101.

[0038] The three-way valve group 31 also includes a second three-way valve 312, the second three-way valve 312 having a through inlet 31201, a second interface 31202, and a second through port 31203, the second through port 31203 being in communication with the second inlet 103 through a pipeline. The second three-way valve 312 is installed on the pipeline between the second guide inlet 22101 and the second water outlet 902, the through inlet 31201 being in communication with the second water outlet 902 through a pipeline, and the second interface 31202 being in communication with the second guide inlet 22101 through a pipeline. The second three-way valve 312 is configured to allow either the second interface 31202 or the second through port 31203 to be in communication with the through inlet 31201.

[0039] The water cooling device capable of coupling has a respective cooling mode and an energy coupling mode, and is capable of switching between the respective cooling mode and the energy coupling mode.

[0040] Reference Figures 2-3 When the water cooling device capable of coupling is in the respective cooling mode, the first cooling member 21 and the second cooling mechanism 22 remain in operation, the first interface 31102 of the first three-way valve 311 is in communication with the through outlet 31101, and the through inlet 31201 of the second three-way valve 312 is in communication with the second interface 31202.

[0041] Specifically, the cooling liquid which exchanges heat with the power module group 80 to absorb heat enters the water tank 10, is discharged from the first outlet 102 and enters the first cooling member 21 through the first guide inlet 2101, exchanges heat in the first cooling member 21 to change into cooling liquid which loses heat, the cooling liquid which loses heat is guided out from the first guide outlet 2102 and is guided to the first water inlet 801 to cool the power module group 80; at the same time, the cooling liquid which exchanges heat with the power battery group 90 to absorb heat is discharged from the second water outlet 902 and enters the second three-way valve 312 through the through inlet 31201, is discharged from the second interface 31202, the cooling liquid which absorbs heat discharged from the second interface 31202 enters the second cooling member 221 from the second guide inlet 22101 and exchanges heat in the second cooling member 221 to change into cooling liquid which loses heat, the cooling liquid which loses heat is guided out from the second guide outlet 22102 and enters the first three-way valve 311 from the first interface 31102, is discharged from the through outlet 31101, the cooling liquid which loses heat discharged from the through outlet 31101 enters the power battery group 90 through the second water inlet 901 to cool the power battery group 90.

[0042] In this way, in a high-temperature environment, the power module group 80 and the power battery group 90 can be cooled respectively, so that the power module group 80 and the power battery group 90 are kept at respective optimal working temperatures to prevent overheating and damage, and improve respective working efficiency and service life.

[0043] Preferably, in a high-temperature environment, for example, when the ambient temperature is 45°C, the temperature of the cooling liquid which absorbs heat and is discharged from the first water outlet 802 to the water tank 10 is 54-59°C, the temperature of the cooling liquid which loses heat and is guided to the first water inlet 801 after exchanging heat in the first cooling member 21 is 45-50°C. The temperature of the cooling liquid which absorbs heat and is discharged from the second water outlet 902 to the second cooling member 221 is 26-30°C, and the temperature of the cooling liquid which loses heat and is guided to the second water inlet 901 after exchanging heat in the second cooling member 221 is 18-22°C.

[0044] Reference Figure 4 When the water cooling device in the possible energy coupling mode is in the energy coupling mode, the first cooling member 21 and the second cooling mechanism 22 stop running, the first through port 31103 and the through outlet 31101 of the first three-way valve 311 are communicated, and the through inlet 31201 and the second through port 31203 of the second three-way valve 312 are communicated.

[0045] Specifically, the cooling liquid absorbing heat exchanged with the power module group 80 and the cooling liquid losing heat exchanged with the power battery group 90 are respectively entered into the water tank 10 through the first inlet 101 and the second inlet 103 to mix in the water tank 10 to obtain the medium temperature cooling liquid, which is respectively discharged from the first outlet 102 and the second outlet 104. The medium temperature cooling liquid discharged from the first outlet 102 flows through the first cooling member 21 and finally enters into the power module group 80 through the first water inlet 801 to provide the cold source for cooling the power module group 80, and the medium temperature cooling liquid is transformed into the cooling liquid absorbing heat exchanged in the power module group 80 and discharged from the first water outlet 802; meanwhile, the medium temperature cooling liquid discharged from the second outlet 104 enters into the first three-way valve 311 from the first through port 31103 and is discharged from the through outlet 31101 to finally enter into the power battery group 90 through the second water inlet 901 to provide the heat source for heating the power battery group 90, and the medium temperature cooling liquid is transformed into the cooling liquid losing heat exchanged in the power battery group 90 and discharged from the second water outlet 902.

[0046] In this way, in the low temperature environment, the heat generated by the power module group 80 is utilized to heat the power battery group 90, the low grade energy is converted and utilized, so that the power module group 80 and the power battery group 90 are kept at the optimal working temperature, and the power module group 80 does not need to be cooled and the power battery group 90 does not need to be heated, compared with the way of cooling and heating by the plate-fin radiator and the PTC heater respectively, the energy is saved, the processing cost is reduced, and the effect of energy saving and emission reduction is achieved.

[0047] Preferably, in the low temperature environment, such as winter, the temperature of the cooling liquid absorbing heat discharged from the first water outlet 802 and guided to the water tank 10 is 48-52℃, the temperature of the cooling liquid absorbing heat discharged from the second water outlet 902 and guided to the water tank 10 through the second three-way valve 312 is 22-26℃, and the temperature of the medium temperature cooling liquid discharged from the first outlet 102 and the second outlet 104 is 30-35℃.

[0048] Reference Figure 1 and Figure 3The second cooling mechanism 22 comprises a cold source supply assembly 222, which is connected to the second cooling component 221 through a pipeline, and is configured to supply low-temperature and low-pressure liquid refrigerant to the second cooling component 221. The second cooling component 221 is configured to exchange heat between the cooling liquid that absorbs heat and is discharged from the second water outlet 902 and the low-temperature and low-pressure liquid refrigerant to obtain cooling liquid that loses heat and low-temperature and low-pressure gaseous refrigerant. The low-temperature and low-pressure gaseous refrigerant is discharged from the second cooling component 221 and enters the cold source supply assembly 222. The cold source supply assembly 222 is configured to convert the low-temperature and low-pressure gaseous refrigerant into low-temperature and low-pressure liquid refrigerant.

[0049] Preferably, the second cooling component 221 is implemented as a plate heat exchanger.

[0050] The cold source supply assembly 222 comprises a compressor 2221, a condenser 2222 and an expansion valve 2223. The second cooling component 221 is connected to the compressor 2221 through a pipeline, and the low-temperature and low-pressure gaseous refrigerant is discharged from the second cooling component 221 and enters the compressor 2221. The compressor 2221 is configured to convert the low-temperature and low-pressure gaseous refrigerant into high-temperature and high-pressure gaseous refrigerant. The compressor 2221 is connected to the condenser 2222 through a pipeline, and the high-temperature and high-pressure gaseous refrigerant is discharged from the compressor 2221 and enters the condenser 2222. The condenser 2222 is configured to convert the high-temperature and high-pressure gaseous refrigerant into high-temperature and high-pressure liquid refrigerant. The condenser 2222 is connected to the expansion valve 2223 through a pipeline, and the high-temperature and high-pressure liquid refrigerant is discharged from the condenser 2222 and enters the expansion valve 2223. The expansion valve 2223 is configured to convert the high-temperature and high-pressure liquid refrigerant into low-temperature and low-pressure liquid refrigerant. The expansion valve 2223 is connected to the second cooling component 221 through a pipeline to supply low-temperature and low-pressure liquid refrigerant to the second cooling component 221.

[0051] Reference Figure 1 The water cooling device that can be coupled comprises a pump set 40, which comprises a first water pump 41 and a second water pump 42. The first water pump 41 is installed on a pipeline between the first outlet 102 and the first water inlet 801, and is configured to guide the cooling liquid or the medium-temperature cooling liquid in the water tank 10 that absorbs heat to be discharged from the first outlet 102 to flow to the first water inlet 801. The second water pump 42 is installed on a pipeline between the second outlet 104 and the first three-way valve 311, and is configured to guide the medium-temperature cooling liquid in the water tank 10 to be discharged from the second outlet 104 to flow to the first three-way valve 311.

[0052] Further, the pump group 40 further comprises a third water pump 43, which is installed on the pipeline between the second inlet 22101 and the second outlet 902 or on the pipeline between the second outlet 22102 and the second inlet 901. The third water pump 43 is used to guide the cooling liquid with lost heat discharged by the second cooling member 221 to the power battery group 90 or to guide the cooling liquid with absorbed heat discharged by the power battery group 90 to the second cooling member 221.

[0053] With reference to Figure 1 The possible quantity coupled water cooling device comprises two filters 50, one of which is installed on the pipeline between the first water pump 41 and the first outlet 102 and the other of which is installed on the pipeline between the second water pump 42 and the second outlet 104. The filters 50 are used to filter the cooling liquid with absorbed heat or the medium-temperature cooling liquid discharged by the first outlet 102 or the medium-temperature cooling liquid discharged by the second outlet 104, so as to prevent impurities mixed therein from affecting the normal use of the first water pump 41 or the second water pump 42.

[0054] The valve mechanism 30 further comprises two on-off valves 32, which are respectively installed on the pipeline connected with the first outlet 102 and on the pipeline connected with the second outlet 104. The cooling liquid with absorbed heat or the medium-temperature cooling liquid discharged by the first outlet 102 or the medium-temperature cooling liquid discharged by the second outlet 104 first flows through the corresponding on-off valve 32, which is used to control the discharge of the first outlet 102 or the second outlet 104, so as to maintain the device on the pipeline connected with the first outlet 102 or the second outlet 104 by blocking the discharge.

[0055] Preferably, the pipeline between the first outlet 102 and the first inlet 801 is sequentially provided with an on-off valve 32, a filter 50, a first water pump 41 and a first cooling member 21. The pipeline between the second outlet 104 and the first through hole 31103 is sequentially provided with an on-off valve 32, a filter 50 and a second water pump 42.

[0056] With reference to Figure 1The possible quantity coupled water cooling device comprises a detection mechanism 60, the detection mechanism 60 comprises a temperature detection assembly 61, the temperature detection assembly 61 comprises a first temperature sensor 611, the first temperature sensor 611 is installed on the pipeline between the first outlet 2102 and the first water inlet 801, and the first temperature sensor 611 is used for detecting the temperature of the cooling liquid with lost heat obtained through heat exchange of the first cooling part 21. The first temperature sensor 611 is in communication connection with a controller, the first water pump 41 is controllably connected to the controller, and the controller adjusts the running speed of the first water pump 41 according to the feedback of the first temperature sensor 611, so that the flow of the cooling liquid with absorbed heat discharged from the first outlet 102 is adjusted, and then the amount of the cooling liquid with absorbed heat in unit time during subsequent heat exchange is adjusted, so that the temperature of the cooling liquid with lost heat obtained after heat exchange is more accurate.

[0057] Preferably, the first cooling part 21 is controllably connected to the controller, and the controller adjusts the running speed of the first cooling part 21 according to the feedback of the first temperature sensor 611, so as to adjust the cooling amplitude of the cooling liquid with absorbed heat in unit time. In this way, through the cooperation of the first water pump 41 and the first cooling part 21, the temperature of the cooling liquid with lost heat is ensured to be accurate, and then the cooling liquid with lost heat provided for the power module group 80 can effectively dissipate heat for the power module group 80.

[0058] Specifically, when the first cooling part 21 is implemented as a plate-fin radiator, the temperature of the cooling liquid with lost heat is detected through the first temperature sensor 611. If the controller judges that the temperature is too high, the controller reduces the running speed of the first water pump 41, so that the flow of the cooling liquid with absorbed heat discharged from the first outlet 102 is reduced, so as to reduce the amount of the cooling liquid with absorbed heat in unit time during subsequent heat exchange, and the controller increases the running speed of the plate-fin radiator, so that the air flow is accelerated to increase the cooling amplitude of the cooling liquid with absorbed heat in unit time, thereby ensuring that the subsequent obtained cooling liquid with lost heat is kept within a predetermined temperature range. If the controller judges that the temperature is too low, the controller increases the running speed of the first water pump 41, so that the flow of the cooling liquid with absorbed heat discharged from the first outlet 102 is increased, so as to increase the amount of the cooling liquid with absorbed heat in unit time during subsequent heat exchange, and the controller reduces the running speed of the plate-fin radiator, so that the air flow is slowed down to reduce the cooling amplitude of the cooling liquid with absorbed heat in unit time, thereby ensuring that the subsequent obtained cooling liquid with lost heat is kept within a predetermined range.

[0059] The temperature detecting component 61 further comprises a second temperature sensor 612, which is installed on the water tank 10 and is used to detect the temperature of the medium-temperature coolant in the water tank 10. The second temperature sensor 612 is in communication connection with the controller, and the second water pump 42 is controllably connected to the controller. The controller adjusts the running speed of the second water pump 42 according to the feedback of the second temperature sensor 612, so as to adjust the flow of the medium-temperature coolant discharged from the second outlet 104, and to ensure that the medium-temperature coolant introduced into the power battery pack 90 can effectively heat the power battery pack 90.

[0060] Specifically, the second temperature sensor 612 detects the temperature of the medium-temperature coolant in the water tank 10. If the controller determines that the temperature is too high, the controller reduces the running speed of the second water pump 42, so that the flow of the medium-temperature coolant discharged from the second outlet 104 is reduced, to prevent the power battery pack 90 from being excessively heated and having a temperature that is too high. If the controller determines that the temperature is too low, the controller increases the running speed of the second water pump 42, so that the flow of the medium-temperature coolant discharged from the second outlet 104 is increased, to ensure that the power battery pack 90 can be heated to an optimal temperature range.

[0061] The detecting mechanism 60 further comprises a pressure sensor 62, which is installed on the pipeline connected with the first inlet 101 or the pipeline connected with the first outlet 102, and is used to detect the hydraulic pressure in the pipeline connected with the first inlet 101 or the pipeline connected with the first outlet 102. The pressure sensor 62 is in communication connection with the controller, and feeds back the detected pressure to the controller. If the controller determines that the pressure is too high, it indicates that there is a local blockage problem. If the controller determines that the pressure is too low, it indicates that there is a liquid leakage problem. The controller is in control connection with a first alarm, and selectively controls the running of the first alarm according to the feedback of the pressure sensor 62, so as to timely remind the staff to stop working when the pressure is abnormal.

[0062] The detecting mechanism 60 further comprises a liquid level sensor 63, which is installed on the water tank 10 and is used to detect the liquid level in the water tank 10. The liquid level sensor 63 is in communication connection with the controller, and the controller is in control connection with a second alarm. The controller selectively controls the running of the second alarm according to the feedback of the liquid level sensor 63, to remind the staff to timely supplement the liquid when the liquid level in the water tank 10 is lower than a predetermined value.

[0063] The valve mechanism 30 further comprises two exhaust valves 33, one of which is installed on the top of the water tank 10 and used to exhaust the gas in the water tank 10, and the other of which is installed on the top of the first cooling member 21 and used to exhaust the gas in the pipeline through which the cooling liquid or medium-temperature cooling liquid for absorbing heat flows, so as to prevent the gas from mixing in the cooling liquid or medium-temperature cooling liquid and affecting the heat exchange effect.

[0064] Those skilled in the art should understand that the above description and the embodiments of the utility model shown in the drawings are only examples and do not limit the utility model. The advantages of the utility model have been fully and effectively realized. The functions and structural principles of the utility model have been shown and described in the embodiments, and the embodiments of the utility model can be any deformation or modification without departing from the principles.

Claims

1. A water-cooling device capable of energy coupling, wherein the water-cooling device capable of energy coupling is connected to a power module group and a power battery group through a pipeline, wherein the power module group has a first water inlet and a first water outlet, and the power battery group has a second water inlet and a second water outlet, characterized in that: The energy-coupled water cooling device has a respective cooling mode and an energy coupling mode, and the energy-coupled water cooling device can switch between the respective cooling mode and the energy coupling mode. The energy-coupled water cooling device includes: a water tank having a first inlet, a first outlet, a second inlet, and a second outlet, the first inlet being connected to the first water outlet of the power module group via a pipeline, the coolant that absorbs heat by exchanging heat with the power module group being discharged from the first water outlet and entering the water tank through the first inlet, and the first outlet being connected to the first water inlet via a pipeline; A cooling device, comprising: a first cooling element, the first cooling element being installed on a pipeline between the first outlet and the first water inlet, the first cooling element having a first inlet and a first outlet, the first outlet being connected to the first inlet via a pipeline, and the first outlet being connected to the first water inlet via a pipeline, wherein after the heat-absorbing coolant entering the water tank is discharged from the first outlet and enters the first cooling element through the first inlet, the heat-absorbing coolant can be converted into heat-losing coolant by heat exchange within the first cooling element, so that the heat-losing coolant is provided by the first cooling element to the power module group; a second cooling mechanism, the second cooling mechanism including a second cooling element, the second cooling element having a second inlet and a second outlet, the second inlet being connected to the second water outlet via a pipeline, and the second outlet being connected to the second water inlet via a pipeline, wherein the coolant that absorbs heat from the power battery pack is discharged from the second water outlet and enters the second cooling element through the second inlet, the coolant that absorbs heat can be converted into coolant that loses heat by heat exchange in the second cooling element, and the coolant that loses heat is provided by the second cooling element to the power battery pack; The valve mechanism includes a three-way valve group, and the three-way valve group includes: a first three-way valve, the first three-way valve having an outlet, a first interface, and a first port, the first port being connected to the second outlet via a pipeline, the first three-way valve being installed on the pipeline between the second outlet and the second water inlet, the first interface being connected to the second outlet via a pipeline, the outlet being connected to the second water inlet via a pipeline, and the first three-way valve being configured to connect either the first interface or the first port to the outlet; a second three-way valve, the second three-way valve having an inlet, a second interface, and a second port, the second port being connected to the second inlet via a pipeline, the second three-way valve being installed on the pipeline between the second inlet and the second water outlet, the inlet being connected to the second water outlet via a pipeline, the second interface being connected to the second inlet via a pipeline, and the second three-way valve being configured to connect either the second interface or the second port to the inlet; When the energy-coupled water-cooling device is in the respective cooling modes, the first cooling component and the second cooling mechanism remain in operation, the first interface is connected to the outlet, and the inlet is connected to the second interface; when the energy-coupled water-cooling device is in the energy coupling mode, the first cooling component and the second cooling mechanism stop operating, the first port is connected to the outlet, and the inlet is connected to the second port, the coolant that absorbs heat by heat exchange with the power module group and the coolant that loses heat by heat exchange with the power battery pack enter the water tank through the first inlet and the second inlet respectively to be mixed in the water tank to obtain medium-temperature coolant, and the medium-temperature coolant is discharged from the first outlet and the second outlet respectively.

2. The energy-coupled water cooling device according to claim 1, characterized in that: The second cooling element is configured to exchange heat between the heat-absorbing coolant discharged from the second water outlet and the low-temperature, low-pressure liquid refrigerant to obtain the heat-losing coolant and the low-temperature, low-pressure gaseous refrigerant. The second cooling mechanism includes a cold source supply component, and the cold source supply component includes a compressor, a condenser and an expansion valve. The second cooling element is connected to the compressor through a pipeline, and the low-temperature, low-pressure gaseous refrigerant is discharged from the second cooling element and enters the compressor. The compressor is configured to convert the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gaseous refrigerant. The compressor is connected to the condenser through a pipeline, and the high-temperature and high-pressure gaseous refrigerant is discharged from the compressor and enters the condenser. The condenser is configured to convert the high-temperature and high-pressure gaseous refrigerant into a high-temperature and high-pressure liquid refrigerant. The condenser is connected to the expansion valve through a pipeline, and the high-temperature and high-pressure liquid refrigerant is discharged from the condenser and enters the expansion valve. The expansion valve is configured to convert the high-temperature and high-pressure liquid refrigerant into a low-temperature and low-pressure liquid refrigerant. The expansion valve is connected to the second cooling component through a pipeline to supply the low-temperature and low-pressure liquid refrigerant to the second cooling component.

3. The energy-coupled water cooling device according to claim 1 or 2, characterized in that: The energy-coupled water-cooling device includes a pump group, which includes a first water pump and a second water pump. The first water pump is installed on the pipeline between the first outlet and the first water inlet. The first water pump is used to guide the coolant or medium-temperature coolant that absorbs heat in the water tank to be discharged from the first outlet to flow to the first water inlet. The second water pump is installed on the pipeline between the second outlet and the first port. The second water pump is used to guide the medium-temperature coolant in the water tank to be discharged from the second outlet to flow to the first three-way valve.

4. The energy-coupled water cooling device according to claim 3, characterized in that: The pump group also includes a third water pump, which is installed on the pipeline between the second inlet and the second water outlet or the pipeline between the second outlet and the second water inlet. The third water pump is used to guide the coolant that loses heat and is discharged by the second cooling component to the power battery pack or to guide the coolant that absorbs heat and is discharged by the power battery pack to the second cooling component.

5. The energy-coupled water cooling device according to claim 3, characterized in that: The energy-coupled water cooling device includes two filters, one of which is installed on the pipeline between the first water pump and the first outlet and the other on the pipeline between the second water pump and the second outlet. The filter is used to filter the heat-absorbing coolant or medium-temperature coolant discharged from the first outlet or the medium-temperature coolant discharged from the second outlet.

6. The energy-coupled water cooling device according to claim 3, characterized in that: The energy-coupled water-cooling device includes a detection mechanism, the detection mechanism includes a temperature detection component, the temperature detection component includes a first temperature sensor, the first temperature sensor is installed on the pipeline between the first outlet and the first water inlet, the first temperature sensor is used to detect the temperature of the coolant that loses heat through heat exchange through the first cooling component, the first temperature sensor is communicatively connected to a controller, the first water pump and the first cooling component are both controllably connected to the controller, and the controller regulates the operating speed of the first water pump and the first cooling component based on feedback from the first temperature sensor.

7. The energy-coupled water cooling device according to claim 6, characterized in that: The temperature detection component also includes a second temperature sensor, which is installed on the water tank. The second temperature sensor is used to detect the temperature of the medium-temperature coolant in the water tank. The second temperature sensor is communicatively connected to the controller. The second water pump is controllably connected to the controller. The controller adjusts the operating speed of the second water pump based on feedback from the second temperature sensor.

8. The energy-coupled water cooling device according to claim 6, characterized in that: The detection mechanism also includes a pressure sensor, which is installed on the pipeline connected to the first inlet or the pipeline connected to the first outlet. The pressure sensor is used to detect the hydraulic pressure in the pipeline connected to the first inlet or the pipeline connected to the first outlet. The pressure sensor is communicatively connected to the controller, and the controller is control-connected to the first alarm. The controller selectively controls the operation of the first alarm based on feedback from the pressure sensor.

9. The energy-coupled water cooling device according to claim 6, characterized in that: The detection mechanism also includes a liquid level sensor, which is installed on the water tank. The liquid level sensor is used to detect the liquid level height in the water tank. The liquid level sensor is communicatively connected to the controller, and the controller is connected to the second alarm controller. The controller selectively controls the operation of the second alarm based on feedback from the liquid level sensor.

10. The energy-coupled water cooling device according to claim 3, characterized in that: The valve mechanism also includes two switch valves, which are respectively installed on the pipeline connected to the first outlet and the pipeline connected to the second outlet. The heat-absorbing coolant or medium-temperature coolant discharged from the first outlet or the medium-temperature coolant discharged from the second outlet first flows through the corresponding switch valve. The switch valve is used to control the discharge of the first outlet or the second outlet.

Images