CN112477549B - Cooling liquid cooling heat source switching device of multi-load heat pump system - Google Patents
Cooling liquid cooling heat source switching device of multi-load heat pump system Download PDFInfo
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- CN112477549B CN112477549B CN202011322836.5A CN202011322836A CN112477549B CN 112477549 B CN112477549 B CN 112477549B CN 202011322836 A CN202011322836 A CN 202011322836A CN 112477549 B CN112477549 B CN 112477549B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H2001/00307—Component temperature regulation using a liquid flow
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Life Sciences & Earth Sciences (AREA)
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- Physics & Mathematics (AREA)
- Transportation (AREA)
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Abstract
本发明属于热泵相关领域，公开了一种多负载热泵系统的冷却液冷热源切换装置，包括冷源通道组件，包括低温介质进口和低温介质出口，低温介质进口连通有多个第一冷源通道，低温介质出口连通有多个第二冷源通道；热源通道组件，包括高温介质进口和高温介质出口，高温介质进口连通有多个第一热源通道，高温介质出口连通有多个第二热源通道；多个负载入口接头，均连通一个第一冷源通道及一个第一热源通道；多个负载出口接头，均连通一个第二冷源通道及一个第二热源通道；多个阀门，被配置为控制各个通道的通断；执行器，被配置为控制阀门的开关。本发明能满足不同负载工况所需的冷源或热源的切换，提高了热泵系统的控制效率。
The invention belongs to the heat pump related field, and discloses a cooling liquid cold heat source switching device of a multi-load heat pump system. The channel, the low temperature medium outlet is connected with a plurality of second cold source channels; the heat source channel assembly includes a high temperature medium inlet and a high temperature medium outlet, the high temperature medium inlet is connected with a plurality of first heat source channels, and the high temperature medium outlet is connected with a plurality of second heat sources a plurality of load inlet joints, all connected to a first cold source channel and a first heat source channel; a plurality of load outlet joints, all connected to a second cold source channel and a second heat source channel; a plurality of valves, configured In order to control the on-off of each channel; the actuator is configured to control the switch of the valve. The invention can satisfy the switching of the cold source or the heat source required by different load conditions, and improve the control efficiency of the heat pump system.
Description
Technical Field
The invention relates to the field related to heat pumps, in particular to a cooling liquid cooling heat source switching device of a multi-load heat pump system.
Background
Currently, with the increasingly high requirements on the key parameter of automobiles, namely endurance mileage, various heat pump systems are in operation, and are increasingly popularized and popularized due to the advantages of high efficiency and energy conservation. But still have a lot of restrictions in new energy automobile heat pump air conditioner popularization and promotion.
At present, automobile heat pump air conditioners on the market adopt a direct heat pump system, namely, an evaporator in an air conditioner box of a passenger compartment is used for cooling the passenger compartment, a condenser in the air conditioner box is used for heating the passenger compartment, a giller plate type heat exchanger for cooling a battery pack is added, and a medium side is connected into a multi-heat exchanger system. The system directly conveys the medium to a load, and has high thermal efficiency and high system energy efficiency. However, in this type of direct heat pump system, due to the large number of heat exchangers, the number of medium circuit modes is large, the medium pipeline has a complicated trend, the pipeline size is long, and the number of electromagnetic shutoff valves and throttle valves of the medium circuit is large. The above characteristics directly cause the cost of the heat pump system to be high, and the use threshold of a user is improved; the complexity of the medium pipeline aggravates the risks of refrigerant leakage, compressor oil return, impurity cleanliness in the system and the like, the service life of the heat pump system is shortened, and the maintenance cost is increased; the long size of the medium pipeline and the large number of the heat exchangers can cause the refrigerant charge amount of the system to be obviously larger than that of the traditional air conditioning system, on one hand, the purchase cost of the refrigerant is increased, meanwhile, higher requirements are put forward on the safety of the refrigerant, and the limitation of the selection of the refrigerant types is aggravated.
In view of the above disadvantages of the direct heat pump system, currently, the feasibility of applying the indirect heat pump system to the field of the automobile heat pump air conditioner has been explored, and it is expected to simplify the design of the medium loop and improve the disadvantages of the direct heat pump system. However, most of the research on the indirect heat pump system is limited to the indirect heating of the passenger compartment by replacing the indoor condenser for heating with the water-cooled condenser and combining the indoor condenser with the heating core, and the solution still does not solve the defects of the direct heat pump system.
In addition, the main challenge of the application and popularization of the indirect heat pump system is the design of a cooling liquid loop, and the design difficulty is mainly caused by the complexity of the load requirement of the whole vehicle.
The whole vehicle generally provides a lot of load demands for the heat pump air conditioner of the vehicle, the load quantity is large, and the load collocation is flexible and changeable due to vehicle type configuration (a single air conditioner box, a front air conditioner box and a rear air conditioner box), an air conditioner box heating mode (air PTC and a heating core), vehicle special configuration (a vehicle-mounted refrigerating box) and the like; different types of loads often have different requirements, such as a passenger compartment and a battery pack both requiring cooling from a cold source and heating from a heat source, motors often requiring cooling only, and the like; the connection mode requirements of different loads are different, or the loads are connected in parallel or in series, for example, the cooling and heating of the passenger compartment and the battery pack are mainly in parallel relation, and the heat radiation water tank and the motor are connected in series or the heat radiation water tank is in short circuit bypass; in addition, the load is generated to form a small circulation, and the small circulation is separated from a heat source of a cold source of the medium loop, such as a battery pack heated by a motor or a passenger compartment heated by the motor.
In an indirect heat pump system, the requirement of meeting the above load requirements through the coolant side leads to extremely complex coolant loop design, reduces the reliability and stability of the system, increases the application difficulty, and weakens the feasibility thereof, so it is urgently needed to design a cold and heat source switching device which is convenient and fast to control, so as to simplify various complicated pipelines and improve the control efficiency of the whole system.
Disclosure of Invention
The invention aims to provide a cooling liquid cooling heat source switching device of a multi-load heat pump system, which can meet the switching of a cold source or a heat source required by different load working conditions and improve the control efficiency of the heat pump system.
In order to achieve the purpose, the invention adopts the following technical scheme:
a cooling liquid cooling heat source switching device of a multi-load heat pump system comprises:
the cold source channel assembly comprises a low-temperature medium inlet and a low-temperature medium outlet, the low-temperature medium inlet is communicated with a plurality of first cold source channels, and the low-temperature medium outlet is communicated with a plurality of second cold source channels;
the heat source channel assembly comprises a high-temperature medium inlet and a high-temperature medium outlet, the high-temperature medium inlet is communicated with a plurality of first heat source channels, and the high-temperature medium outlet is communicated with a plurality of second heat source channels;
the load inlet joints are arranged on the cold source channel assembly and/or the heat source channel assembly, and each load inlet joint is communicated with one first cold source channel and one first heat source channel;
the load outlet connectors are arranged on the cold source channel assembly and/or the heat source channel assembly, and each load outlet connector is communicated with one second cold source channel and one second heat source channel;
a plurality of valves configured to control on/off of the first cool source channel, the second cool source channel, the first heat source channel, and the second heat source channel;
an actuator configured to control opening and closing of the valve.
Preferably, the valve is a two-way valve, and each of the first cold source channel, the second cold source channel, the first heat source channel, and the second heat source channel is provided with one of the two-way valves.
Preferably, the valve is composed of two valve elements, wherein the two valve elements rotate synchronously, one of the two valve elements is arranged in the first cold source channel or the second cold source channel, and the other valve element is arranged in the first heat source channel or the second heat source channel.
Preferably, one of the two-way valves is in a closed state, and the other of the two-way valves is in an open state;
or both of the two-way valves may be in a closed or open state simultaneously.
Preferably, the number of the actuators and the number of the valves are the same, and each actuator controls the opening and closing of one valve;
or the number of the actuators is smaller than that of the valves, and each actuator synchronously controls the opening and closing of at least two valves;
or the number of the actuators is smaller than that of the valves, and the actuators are divided into two parts, wherein in one part of the actuators, each actuator synchronously controls the opening and closing of at least two valves, and in the other part of the actuators, each actuator controls the opening and closing of one valve.
Preferably, when the actuators synchronously control the opening and closing of at least two valves, a rotating shaft of each actuator is connected to a valve core of one of the at least two valves in a driving manner, the rotating shaft is fixedly connected with a driving gear, valve cores of the rest of the at least two valves are connected with driven gears, and the driving gear is in transmission connection with the driven gears through racks.
Preferably, the cold source channel assembly comprises a cold source runner upper cover plate and a cold source runner lower cover plate which are in sealed buckling, grooves are formed in the cold source runner upper cover plate and the cold source runner lower cover plate, and the first cold source channel or the second cold source channel is formed between the grooves in the cold source runner upper cover plate and the grooves in the cold source runner lower cover plate.
Preferably, the heat source channel assembly comprises an upper heat source channel cover plate and a lower heat source channel cover plate which are hermetically buckled, grooves are formed in the upper heat source channel cover plate and the lower heat source channel cover plate, and the first heat source channel or the second heat source channel is formed between the groove in the upper heat source channel cover plate and the groove in the lower heat source channel cover plate.
Preferably, when the load inlet joint is arranged on the cold source channel assembly, the cold source channel assembly and/or the heat source channel assembly is/are provided with a first connecting channel, and the load inlet joint is communicated with the first heat source channel through the first connecting channel;
and/or when the load inlet joint is arranged on the heat source channel assembly, the cold source channel assembly and/or the heat source channel assembly are/is provided with a first connecting channel, and the load inlet joint is communicated with the first cold source channel through the first connecting channel;
and/or when the load outlet joint is arranged on the cold source channel assembly, the cold source channel assembly and/or the heat source channel assembly are/is provided with a second connecting channel, and the load outlet joint is communicated with the second heat source channel through the second connecting channel;
and/or when the load outlet joint is arranged on the heat source channel assembly, the cold source channel assembly and/or the heat source channel assembly are/is provided with a second connecting channel, and the load outlet joint is communicated with the second cold source channel through the second connecting channel.
Preferably, a heat insulation layer is arranged between the cold source channel assembly and the heat source channel assembly.
The invention has the beneficial effects that: the valve is controlled to be opened and closed by the actuator, so that the valve can be opened and closed for the first cold source channel, the second cold source channel, the first heat source channel and the second heat source channel, loads communicated with the channels can be connected into a low-temperature medium or a high-temperature medium, the low-temperature medium and the high-temperature medium can be switched as required, the switching of cold sources or heat sources required by different load working conditions is met, and the control efficiency of the heat pump system is improved. In addition, the invention can select to increase or decrease the load inlet joint, the load outlet joint and each channel according to the number of required loads, thereby enabling the heat pump system to be simpler in the aspects of increasing and decreasing the loads and enabling the control of the heat pump system to be more convenient and easier.
In addition, the structure of the cooling liquid cooling heat source switching device of the multi-load heat pump system is more miniaturized, the space requirement is small, and when the cooling liquid cooling heat source switching device is applied to the automobile, the whole automobile assembling performance of the automobile is higher, and more arrangeable space can be saved for the total arrangement of the whole automobile.
Drawings
Fig. 1 is a schematic structural diagram of a cooling liquid-to-heat source switching device of a multi-load heat pump system provided by the invention;
fig. 2 is an exploded schematic view of a cooling liquid cooling heat source switching device of the multi-load heat pump system provided by the invention;
FIG. 3 is a top view of the cooling liquid cooling heat source switching device of the multi-load heat pump system according to the present invention after the cover is hidden;
FIG. 4 is a schematic view of a valve and actuator arrangement provided by the present invention;
FIG. 5 is a schematic diagram of two valves of the present invention that are controlled to open and close by an actuator;
FIG. 6 is a schematic structural diagram of a cooling liquid heat source switching device (increasing the number of load inlet connectors and load outlet connectors) of the multi-load heat pump system provided by the invention;
fig. 7 is a schematic diagram illustrating a cooling source circulation of the cooling liquid cooling/heat source switching device of the multi-load heat pump system according to the present invention;
fig. 8 is a heat source circulation schematic diagram of a cooling liquid heat source switching device of the multi-load heat pump system according to the present invention.
In the figure:
1. a cold source channel assembly; 11. a low temperature medium inlet; 12. a low temperature medium outlet; 13. a first cold source channel; 14. a second cold source channel; 15. an upper cover plate of the cold source runner; 16. a lower cover plate of the cold source runner; 2. a heat source channel assembly; 21. a high temperature medium inlet; 22. a high temperature medium outlet; 23. a first heat source channel; 24. a second heat source channel; 25. a heat source runner upper cover plate; 26. a heat source runner lower cover plate; 27. a first connecting channel; 28. a second connecting channel; 3. a load inlet connection; 4. a load outlet connection; 5. a valve; 6. an actuator; 61. a driving gear; 62. a driven gear; 63. a rack; 7. and (4) a housing.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The invention provides a cooling liquid cooling heat source switching device of a multi-load heat pump system, which can meet the switching of a cold source or a heat source required by different load working conditions of an automobile and improve the control efficiency of the heat pump system. In this embodiment, the load includes, but is not limited to, a single air conditioning box, a front and rear air conditioning box, an air PTC, a warm core, a vehicle-mounted refrigerator, and the like of an automobile. The load may be used for cooling, heating, or both cooling and heating.
As shown in fig. 1-3, the cooling liquid-to-heat source switching device of the multi-load heat pump system includes a cold source channel assembly 1, a heat source channel assembly 2, a plurality of load inlet joints 3, a plurality of load outlet joints 4, a plurality of valves 5, and an actuator 6, wherein the cold source channel assembly 1 and the heat source channel assembly 2 are attached to each other, and a heat insulation layer is disposed between the cold source channel assembly 1 and the heat source channel assembly 2 to isolate mutual influence of cold and hot temperatures therebetween. The valve 5 can control the change and the on-off of the circulation path of the medium in the cold source channel assembly 1 and the heat source channel assembly 2, and the actuator 6 is used for controlling the on-off of the valve 5.
In this embodiment, the cold source channel assembly 1 is provided with a low temperature medium inlet 11 and a low temperature medium outlet 12, and the cold source channel assembly 1 is provided with a plurality of first cold source channels 13 and a plurality of second cold source channels 14 (shown in fig. 7), the plurality of first cold source channels 13 are all communicated with the low temperature medium inlet 11, and one end of the first cold source channel 13, which is not communicated with the low temperature medium inlet 11, is communicated with the load inlet joint 3. The plurality of second cold source channels 14 are all communicated with the low-temperature medium outlet 12, and one end of the second cold source channel 14, which is not communicated with the low-temperature medium outlet 12, is communicated with the load outlet connector 4. The low-temperature medium can enter the first cold source channel 13 through the low-temperature medium inlet 11, then enter the load through the load inlet joint 3, perform refrigeration operation, then enter the second cold source channel 14 through the load outlet joint 4, and finally flow out through the low-temperature medium outlet 12.
Referring to fig. 2, the cold source channel assembly 1 includes a cold source channel upper cover plate 15 and a cold source channel lower cover plate 16 which are hermetically fastened, and the cold source channel upper cover plate 15 and the cold source channel lower cover plate 16 may be welded together by ultrasonic waves, or may be connected together by other methods which can achieve sealing. And preferably, a sealing rubber ring can be arranged between the upper cover plate 15 of the cold source flow channel and the lower cover plate 16 of the cold source flow channel to further improve the sealing effect.
A plurality of corresponding grooves are formed in the cold source flow channel upper cover plate 15 and the cold source flow channel lower cover plate 16, and a first cold source channel 13 or a second cold source channel 14 is formed between the groove in the cold source flow channel upper cover plate 15 and the groove in the cold source flow channel lower cover plate 16 corresponding to the groove in the cold source flow channel upper cover plate 15. It should be noted that, in the present embodiment, the number of the first cool source channels 13 and the second cool source channels 14 is preferably the same as the number of the loads. Alternatively, the low-temperature medium inlet 11 and the low-temperature medium outlet 12 may be disposed on the cold source flow channel upper cover plate 15 or the cold source flow channel lower cover plate 16.
The heat source channel assembly 2 is provided with a high-temperature medium inlet 21 and a high-temperature medium outlet 22, and the heat source channel assembly 2 is provided with a plurality of first heat source channels 23 and a plurality of second heat source channels 24 (shown in fig. 8), the plurality of first heat source channels 23 are all communicated with the high-temperature medium inlet 21, and one end of each first heat source channel 23, which is not communicated with the high-temperature medium inlet 21, is communicated with the load inlet joint 3. The plurality of second heat source channels 24 are all communicated with the high-temperature medium outlet 22, and one end of each second heat source channel 24, which is not communicated with the high-temperature medium outlet 22, is communicated with the load outlet connector 4. The high-temperature medium can enter the first heat source channel 23 through the high-temperature medium inlet 21, then enter the load through the load inlet joint 3 to perform heating operation, then enter the second heat source channel 24 through the load outlet joint 4, and finally flow out through the high-temperature medium outlet 22.
As shown in fig. 2, the heat source channel assembly 2 includes a heat source channel upper cover plate 25 and a heat source channel lower cover plate 26 which are hermetically fastened, and the cold source channel upper cover plate 15 and the cold source channel lower cover plate 16 may be integrally connected by ultrasonic welding or by other methods capable of achieving sealing.
A plurality of corresponding grooves are formed in the heat source flow channel upper cover plate 25 and the heat source flow channel lower cover plate 26, and a first heat source channel 23 or a second heat source channel 24 is formed between the groove in the heat source flow channel upper cover plate 25 and the groove in the heat source flow channel lower cover plate 26 corresponding to the groove in the heat source flow channel upper cover plate 25. It is to be noted that, in the present embodiment, the number of the above-described first heat source passages 23 and second heat source passages 24 is preferably the same as the number of the loads. Alternatively, the above-described high-temperature medium inlet 21 and high-temperature medium outlet 22 may be provided on the heat source flow path upper cover plate 25 or the heat source flow path lower cover plate 26.
In this embodiment, the load inlet joints 3 may be all disposed on the cold source channel assembly 1, may also be all disposed on the heat source channel assembly 2, and may also be disposed on a part of the load inlet joints 3 on both the cold source channel assembly 1 and the heat source channel assembly 2.
For example, in the first embodiment, the load inlet connectors 3 are all disposed on the heat sink channel assembly 1 (which may be disposed on the heat sink flow channel upper cover 15 or the heat sink flow channel lower cover 16), in this case, the same number of first connection channels 27 as the number of the load inlet connectors 3 may be disposed on the heat source flow channel upper cover 25 of the heat source channel assembly 2, and the load inlet connectors 3 are communicated with the first heat source channels 23 through the first connection channels 27. Of course, the first connecting channel 27 may be provided on the lower cover 16 of the cold source channel assembly 1, and the load inlet connector 3 is connected to the first heat source channel 23 through the first connecting channel 27. The first connection channel 27 may be further provided on the cool source flow path lower cover 16 of the cool source channel assembly 1 and the heat source flow path upper cover 25 of the heat source channel assembly 2, respectively.
In the second embodiment, the load inlet connectors 3 are all disposed on the heat source channel assembly 2 (which may be disposed on the heat source channel upper cover plate 25 or the heat source channel lower cover plate 26), and at this time, the same number of first connection channels 27 as the number of the load inlet connectors 3 may be disposed on the cold source channel lower cover plate 16 of the cold source channel assembly 1, and the load inlet connectors 3 are communicated with the first cold source channels 13 through the first connection channels 27. Of course, the first connection channel 27 may be provided on the heat source flow path upper cover plate 25 of the heat source channel assembly 2, and the load inlet connector 3 is communicated with the first cool source channel 13 through the first connection channel 27. The first connection channel 27 may be further provided on the cool source flow path lower cover 16 of the cool source channel assembly 1 and the heat source flow path upper cover 25 of the heat source channel assembly 2, respectively.
In a third embodiment, a part of the load inlet connector 3 may be disposed on the cold source channel assembly 1, and another part of the load inlet connector 3 may be disposed on the heat source channel assembly 2, at this time, the first connecting channel 27 is disposed on the lower cover plate 16 of the cold source channel assembly 1 and/or the upper cover plate 25 of the heat source channel assembly 2, the load inlet connector 3 on the cold source channel assembly 1 is communicated with the first heat source channel 23 through the first connecting channel 27, and the load inlet connector 3 on the heat source channel assembly 2 is communicated with the first cold source channel 13 through the first connecting channel 27.
Corresponding to the first, second, and third embodiments, the load outlet connectors 4 of this embodiment may also be all disposed on the cold source channel assembly 1, or all disposed on the heat source channel assembly 2, or a part of the load outlet connectors 4 may be disposed on both the cold source channel assembly 1 and the heat source channel assembly 2.
For example, when the load outlet connectors 4 are all disposed on the cold source channel assembly 1 (which may be disposed on the cold source channel upper cover 15 or the cold source channel lower cover 16), the same number of second connection channels 28 as the number of load outlet connectors 4 may be disposed on the heat source channel upper cover 25 of the heat source channel assembly 2, and the load outlet connectors 4 are communicated with the second heat source channels 24 through the second connection channels 28. Of course, the second connecting channel 28 can be provided on the lower cover plate 16 of the cold source channel assembly 1, and the load outlet connector 4 is communicated with the second heat source channel 24 through the second connecting channel 28. The second connecting channel 28 may be further provided on the cool source flow path lower cover 16 of the cool source channel assembly 1 and the heat source flow path upper cover 25 of the heat source channel assembly 2, respectively.
When the load outlet connectors 4 are all disposed on the heat source channel assembly 2 (which may be disposed on the heat source channel upper cover plate 25 or the heat source channel lower cover plate 26), the second connection channels 28, the number of which is the same as that of the load outlet connectors 4, may be disposed on the cold source channel lower cover plate 16 of the cold source channel assembly 1, and the load outlet connectors 4 are communicated with the second cold source channel 14 through the second connection channels 28. Of course, the second connection channel 28 may be provided on the heat source flow path upper cover plate 25 of the heat source channel assembly 2, and the load outlet connector 4 is communicated with the second cool source channel 14 through the second connection channel 28. The second connecting channel 28 may be further provided on the cool source flow path lower cover 16 of the cool source channel assembly 1 and the heat source flow path upper cover 25 of the heat source channel assembly 2, respectively.
When one part of the load outlet connector 4 is disposed on the cold source channel assembly 1 and the other part is disposed on the heat source channel assembly 2, a second connecting channel 28 is disposed on the cold source channel lower cover plate 16 of the cold source channel assembly 1 and/or the heat source channel upper cover plate 25 of the heat source channel assembly 2, the load outlet connector 4 disposed on the cold source channel assembly 1 is communicated with the second heat source channel 24 through the second connecting channel 28, and the load outlet connector 4 disposed on the heat source channel assembly 2 is communicated with the second cold source channel 14 through the second connecting channel 28.
In this embodiment, it should be noted that the load inlet joints 3 and the load outlet joints 4 are determined according to the number of loads of different vehicle types, that is, the load inlet joints 3 and the load outlet joints 4 may be 5 load inlet joints 3 and 5 load outlet joints 4 shown in fig. 1 of this embodiment, or may be 7 load inlet joints 3 and 7 load outlet joints 4 shown in fig. 6.
In one embodiment, the valve 5 may be a two-way valve in which two valve cores rotate synchronously, and one of the two-way valves is disposed in the first cold source channel 13 or the second cold source channel 14 to control the on/off of the first cold source channel 13 or the second cold source channel 14. The other is arranged in the first heat source channel 23 or the second heat source channel 24 to control the on-off of the first heat source channel 23 or the second heat source channel 24. The specific structure of the valve 5 can be seen from fig. 4, the two-way valves are arranged up and down, and the valve cores of the two-way valves rotate synchronously. The valve core of the two-way valve located above is connected to the rotating shaft of the actuator 6, and the actuator 6 drives the valve cores of the two-way valves to synchronously rotate, so that the synchronous on-off control of the corresponding first cold source channel 13 and the first heat source channel 23 or the corresponding second cold source channel 14 and the second heat source channel 24 is realized. It should be noted that, in this embodiment, the two-way valves disposed up and down may be in an on state and in an off state, and when the actuator 6 drives the valve cores of the two-way valves to rotate, one of the two-way valves opens the corresponding channel, and the other two-way valve closes the corresponding channel. It will of course be appreciated that two-way valves may be in either the on or off states simultaneously. That is, when the actuator 6 drives the spools of both two-way valves to rotate, the passages can be opened or closed simultaneously.
When the valve 5 is composed of two-way valves with two valve cores rotating synchronously, each valve 5 may be controlled by one actuator 6 (that is, the number of the valves 5 is the same as that of the actuators 6), or two or more valves 5 may be controlled by one actuator 6 at the same time (that is, the number of the actuators 6 is smaller than that of the valves 5), at this time, a linkage structure needs to be added to realize the control of one actuator 6 on two or more valves 5, as shown in fig. 5, the linkage structure may be a structure of a gear and a rack 63, specifically, a rotating shaft of the actuator 6 is connected with a valve core of a two-way valve with one valve 5 located at the upper part, a driving gear 61 is arranged on the rotating shaft, and the valve cores of the two-way valves with the other linked valves 5 located at the upper part are fixedly connected with a driven gear 62, the driving gear 61 and the driven gear 62 are both meshed with the rack 63, the actuator 6 drives the driving gear 61 to rotate, and the driving gear 61 drives the driven gear 62 to rotate through the rack 63, so that the linkage control of two or more valves 5 is realized. Of course, the rack 63 may be replaced by a toothed belt sleeved on the driving gear 61 and the driven gear 62, and the linkage control of two or more valves 5 can also be realized. It should be noted that the actuator 6 may be divided into two parts, wherein one part of the actuator 6 controls the opening and closing of only one valve 5, and the other part of the actuator 6 controls the opening and closing of at least two valves 5 synchronously through a linkage structure.
Alternatively, in another embodiment, the valve 5 may be only composed of a two-way valve, and a two-way valve is provided on each of the first cool source channel 13, the second cool source channel 14, the first heat source channel 23 and the second heat source channel 24. Namely, the on-off of each channel is controlled by a two-way valve. In the two-way valves, each two-way valve can be controlled to be switched by one actuator 6 (namely, the number of the valves 5 is the same as that of the actuators 6), and at the moment, each channel is independently switched on and off. Or two or more two-way valves are controlled by one actuator 6 (that is, the number of the actuators 6 is less than that of the valves 5), at this time, a linkage structure needs to be added to control one actuator 6 on two or more two-way valves, the linkage structure can be a structure of a gear and a rack 63, specifically, a rotating shaft of the actuator 6 is connected with a valve core of one two-way valve, a driving gear 61 is arranged on the rotating shaft, driven gears 62 are fixedly connected on valve cores of the other linked two-way valves, the driving gear 61 and the driven gears 62 are both meshed with the rack 63, the driving gear 61 is driven by the actuator 6 to rotate, and the driving gear 61 drives the driven gear 62 to rotate through the rack 63 to realize linkage control of the two or more two-way valves. Of course, the rack 63 may be replaced by a toothed belt sleeved on the driving gear 61 and the driven gear 62, and the linkage control of two or more two-way valves can also be realized. It should be noted that the actuator 6 may be divided into two parts, wherein one part of the actuator 6 controls the on/off of only one two-way valve, and the other part of the actuator 6 controls the on/off of at least two-way valves synchronously through a linkage structure.
In this embodiment, the valve 5 is sealed with the first heat sink channel 13, the second heat sink channel 14, the first heat source channel 23, and the second heat source channel 24 by sealing rings to prevent the leakage of the medium.
Further, in this embodiment, in order to protect the actuator 6 and the valve 5, a cover 7 is further provided, and the cover 7 is covered above the actuator 6, so as to achieve dust prevention and water prevention of the actuator 6, and prolong the service life of the actuator 6.
In addition, the cold source channel assembly 1 and the heat source channel assembly 2 of the present embodiment may be composed of a plastic member and a rubber member, and have low cost and strong workability.
The cooling liquid-heat source switching device of the multi-load heat pump system in this embodiment takes 5 loads as an example, and is illustrated by a cooling source flow schematic diagram shown in fig. 7 and a heat source flow schematic diagram shown in fig. 8.
Referring to fig. 7, a channel communicated with the low temperature medium inlet 11 is a first cool source channel 13, a channel communicated with the low temperature medium outlet 12 is a second cool source channel 14, and the first cool source channel 13 and the second cool source channel 14 may be controlled to be not communicated by the valve 5. A valve 5 is provided in each of the first cool source passage 13 and the second cool source passage 14 (wherein a cross indicates that the valve 5 is in a closed state, and an uncrushed indicates that the valve 5 is in an open state). In fig. 7, the passages are provided with arrows, which indicate that they are in a communicating state, and the low-temperature medium flows in the directions of the arrows. Hatching is arranged in the channel to indicate that the channel is in a disconnected state, and the low-temperature medium cannot flow in the channel. Taking two loads requiring refrigeration as an example, for example, the battery pack and the cooler may require refrigeration, at this time, only the actuator 6 controls the first cold source channel 13 communicated with the load inlet connector 3 No. 3 and the load inlet connector 4 No. 4 to be opened, and at the same time, the second cold source channel 14 communicated with the load outlet connector 4 No. 3 and the load outlet connector 4 No. 4 to be opened, and at this time, the low-temperature medium enters the cooling flow channel of the battery pack through the low-temperature medium inlet 11, the first cold source channel 13, and the load inlet connector 3 No. 3, and flows out through the load outlet connector 4 No. 3, the second cold source channel 14, and the low-temperature medium outlet 12, so as to cool the battery pack. Meanwhile, the low-temperature medium enters a cooling flow channel of the cooler through the low-temperature medium inlet 11, the first cold source channel 13 and the No. 4 load inlet and flows out through the No. 4 load outlet connector 4, the second cold source channel 14 and the low-temperature medium outlet 12, so that the cooling of the cooler is realized. At this time, the valves 5 on the first cool source channel 13 and the second cool source channel 14, which are communicated with the rest of the load inlet connector 3 and the load outlet connector 4, are in a closed state.
Referring to fig. 8, a channel communicated with the high temperature medium inlet 21 is a first heat source channel 23, a channel communicated with the high temperature medium outlet 22 is a second heat source channel 24, and the first heat source channel 23 and the second heat source channel 24 can be controlled to be not communicated through the valve 5. A valve 5 is provided in each of the first and second heat source passages 23, 24 (with the valve 5 being in a closed state when crossed and the valve 5 being in an open state when not crossed). In fig. 8, the channel is provided with an arrow, which indicates that the channel is in a communicating state, and the high-temperature medium flows in the direction of the arrow. Hatching is arranged in the channel to indicate that the channel is in a disconnected state, and the high-temperature medium cannot flow in the channel. Taking two loads needing to be heated as an example, the two loads can be a heat radiation water tank and a motor, and the heat radiation water tank and the motor are in a serial state (namely, the No. 1 load outlet connector 4 is connected with the No. 2 load inlet connector 3 in series), at the moment, a high-temperature medium enters the heat radiation water tank through the high-temperature medium inlet 21, the first heat source channel 23 and the No. 1 load inlet connector 3 to perform heat radiation and temperature reduction, then enters the No. 2 load inlet connector 3 through the No. 1 load outlet connector 4, and then flows out through the No. 2 load outlet connector 4, the second heat source channel 24 and the high-temperature medium outlet 22 after the motor is cooled.
It is understood that fig. 7 and 8 of the present embodiment are only a flow schematic diagram, and the cooling liquid-to-heat source switching device of the multi-load heat pump system of the present embodiment can also be applied to other scenarios having more loads and different requirements for cooling and heating of the loads.
The cooling liquid cooling heat source switching device of the multi-load heat pump system is more miniaturized in structure and small in space requirement, and when the cooling liquid cooling heat source switching device is applied to an automobile, the whole automobile assembly performance of the automobile can be stronger, and more arrangeable spaces can be saved for the whole automobile general arrangement.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. The utility model provides a many load heat pump system's cooling liquid cooling heat source auto-change over device which characterized in that includes:
the cold source channel assembly (1) comprises a low-temperature medium inlet (11) and a low-temperature medium outlet (12), wherein the low-temperature medium inlet (11) is communicated with a plurality of first cold source channels (13), and the low-temperature medium outlet (12) is communicated with a plurality of second cold source channels (14);
the heat source channel assembly (2) comprises a high-temperature medium inlet (21) and a high-temperature medium outlet (22), the high-temperature medium inlet (21) is communicated with a plurality of first heat source channels (23), and the high-temperature medium outlet (22) is communicated with a plurality of second heat source channels (24);
a plurality of load inlet joints (3) arranged on the cold source channel assembly (1) and/or the heat source channel assembly (2), wherein each load inlet joint (3) is communicated with one first cold source channel (13) and one first heat source channel (23);
a plurality of load outlet connectors (4) arranged on the cold source channel assembly (1) and/or the heat source channel assembly (2), wherein each load outlet connector (4) is communicated with one second cold source channel (14) and one second heat source channel (24);
a plurality of valves (5) configured to control on/off of the first cool source passage (13), the second cool source passage (14), the first heat source passage (23), and the second heat source passage (24);
an actuator (6) configured to control the opening and closing of the valve (5);
when the load inlet joint (3) is arranged on the cold source channel assembly (1), the cold source channel assembly (1) and/or the heat source channel assembly (2) are/is provided with a first connecting channel (27), and the load inlet joint (3) is communicated with the first heat source channel (23) through the first connecting channel (27);
and/or when the load inlet joint (3) is arranged on the heat source channel assembly (2), the cold source channel assembly (1) and/or the heat source channel assembly (2) are/is provided with a first connecting channel (27), and the load inlet joint (3) is communicated with the first cold source channel (13) through the first connecting channel (27);
and/or when the load outlet connector (4) is arranged on the cold source channel assembly (1), the cold source channel assembly (1) and/or the heat source channel assembly (2) are/is provided with a second connecting channel (28), and the load outlet connector (4) is communicated with the second heat source channel (24) through the second connecting channel (28);
and/or when the load outlet joint (4) is arranged on the heat source channel assembly (2), the cold source channel assembly (1) and/or the heat source channel assembly (2) are/is provided with a second connecting channel (28), and the load outlet joint (4) is communicated with the second cold source channel (14) through the second connecting channel (28).
2. The cooling liquid cooling heat source switching device of the multi-load heat pump system as claimed in claim 1, wherein the valve (5) is a two-way valve, and each of the first cold source channel (13), the second cold source channel (14), the first heat source channel (23) and the second heat source channel (24) is provided with one of the two-way valves.
3. The cooling liquid cooling heat source switching device of the multi-load heat pump system as claimed in claim 1, wherein the valve (5) is composed of two-way valves with two valve cores rotating synchronously, one of the two-way valves is disposed in the first cold source channel (13) or the second cold source channel (14), and the other is disposed in the first heat source channel (23) or the second heat source channel (24).
4. The cooling liquid cooling heat source switching device of multi-load heat pump system as claimed in claim 3, wherein one of said two-way valves is in a closed state, and the other of said two-way valves is in an open state;
or both of the two-way valves may be in a closed or open state simultaneously.
5. The cooling liquid heat source switching device of a multi-load heat pump system according to any one of claims 2 to 4,
the number of the actuators (6) is the same as that of the valves (5), and each actuator (6) controls the opening and closing of one valve (5);
or the number of the actuators (6) is less than that of the valves (5), and each actuator (6) synchronously controls the opening and closing of at least two valves (5);
or the number of the actuators (6) is less than that of the valves (5), and the actuators (6) are divided into two parts, wherein in one part of the actuators (6), each actuator (6) synchronously controls the opening and closing of at least two valves (5), and in the other part of the actuators (6), each actuator (6) controls the opening and closing of one valve (5).
6. The cooling liquid cooling heat source switching device of the multi-load heat pump system according to claim 5, wherein when the actuators (6) control the opening and closing of at least two valves (5) synchronously, a rotating shaft of each actuator (6) is connected to a valve core of one valve (5) of the at least two valves (5) in a driving manner, the rotating shaft is fixedly connected with a driving gear (61), valve cores of the other valves (5) of the at least two valves (5) are connected with driven gears (62), and the driving gear is in transmission connection with the driven gears through racks (63).
7. The cooling liquid cooling heat source switching device of the multi-load heat pump system as claimed in claim 1 or 6, wherein the cold source channel assembly (1) comprises a cold source flow channel upper cover plate (15) and a cold source flow channel lower cover plate (16) which are hermetically fastened, grooves are formed in both the cold source flow channel upper cover plate (15) and the cold source flow channel lower cover plate (16), and the first cold source channel (13) or the second cold source channel (14) is formed between the grooves in the cold source flow channel upper cover plate (15) and the grooves in the cold source flow channel lower cover plate (16).
8. The cooling liquid cooling heat source switching device of the multi-load heat pump system according to claim 1, wherein the heat source channel assembly (2) comprises a heat source channel upper cover plate (25) and a heat source channel lower cover plate (26) which are hermetically fastened, grooves are formed in the heat source channel upper cover plate (25) and the heat source channel lower cover plate (26), and the first heat source channel (23) or the second heat source channel (24) is formed between the groove in the heat source channel upper cover plate (25) and the groove in the heat source channel lower cover plate (26).
9. The cooling liquid-to-heat source switching device of a multi-load heat pump system as claimed in claim 1, wherein a heat insulating layer is provided between the cold source channel assembly (1) and the hot source channel assembly (2).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011322836.5A CN112477549B (en) | 2020-11-23 | 2020-11-23 | Cooling liquid cooling heat source switching device of multi-load heat pump system |
| PCT/CN2021/115536 WO2022105352A1 (en) | 2020-11-23 | 2021-08-31 | Coolant cold and heat source switching device of multi-load heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011322836.5A CN112477549B (en) | 2020-11-23 | 2020-11-23 | Cooling liquid cooling heat source switching device of multi-load heat pump system |
Publications (2)
| Publication Number | Publication Date |
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| CN112477549A CN112477549A (en) | 2021-03-12 |
| CN112477549B true CN112477549B (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011322836.5A Active CN112477549B (en) | 2020-11-23 | 2020-11-23 | Cooling liquid cooling heat source switching device of multi-load heat pump system |
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| Country | Link |
|---|---|
| CN (1) | CN112477549B (en) |
| WO (1) | WO2022105352A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025078089A1 (en) * | 2023-10-12 | 2025-04-17 | Zf Friedrichshafen Ag | Supply system for coolant flows of a vehicle, interface unit, distributor housing and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112477549B (en) * | 2020-11-23 | 2022-03-18 | 艾泰斯热系统研发（上海）有限公司 | Cooling liquid cooling heat source switching device of multi-load heat pump system |
| JP7699673B2 (en) * | 2021-06-24 | 2025-06-27 | 浙江吉利控股集団有限公司 | Multi-channel cooling pipe integration device, thermal management integration module and electric vehicle |
| CN113829833B (en) * | 2021-09-29 | 2024-06-07 | 浙江吉利控股集团有限公司 | Heat pump air conditioning system and automobile |
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| WO2023227274A1 (en) * | 2022-05-23 | 2023-11-30 | HELLA GmbH & Co. KGaA | Refrigerant system, distribution module and thermal management system for an electric vehicle |
| CN120018957A (en) * | 2022-10-10 | 2025-05-16 | 福士汽车配套部件责任有限公司 | Thermal management system and vehicle having at least one such thermal management system |
| DE102022213920A1 (en) * | 2022-12-19 | 2024-06-20 | Mahle International Gmbh | Refrigerant circulation |
| FR3152245B1 (en) * | 2023-08-24 | 2025-08-01 | Valeo Systemes Thermiques | Thermal conditioning system comprising two plates forming two fluid circuits |
| EP4517145A1 (en) * | 2023-09-01 | 2025-03-05 | Valeo Systemes Thermiques | Valve module for a refrigerant distribution device of a thermal management system |
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| US6889520B2 (en) * | 2001-02-16 | 2005-05-10 | Mayekawa Mfg. Co., Ltd. | Inter-region thermal complementary system by distributed cryogenic and thermal devices |
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| CN112477549B (en) * | 2020-11-23 | 2022-03-18 | 艾泰斯热系统研发（上海）有限公司 | Cooling liquid cooling heat source switching device of multi-load heat pump system |
-
2020
- 2020-11-23 CN CN202011322836.5A patent/CN112477549B/en active Active
-
2021
- 2021-08-31 WO PCT/CN2021/115536 patent/WO2022105352A1/en not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2025078089A1 (en) * | 2023-10-12 | 2025-04-17 | Zf Friedrichshafen Ag | Supply system for coolant flows of a vehicle, interface unit, distributor housing and vehicle |
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| CN112477549A (en) | 2021-03-12 |
| WO2022105352A1 (en) | 2022-05-27 |
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