CN116409212A - Heat exchange system - Google Patents

Heat exchange system Download PDF

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Publication number
CN116409212A
CN116409212A CN202111683218.8A CN202111683218A CN116409212A CN 116409212 A CN116409212 A CN 116409212A CN 202111683218 A CN202111683218 A CN 202111683218A CN 116409212 A CN116409212 A CN 116409212A
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CN
China
Prior art keywords
flow path
heat exchange
exchange system
port
cooling flow
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Pending
Application number
CN202111683218.8A
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Chinese (zh)
Inventor
请求不公布姓名
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Midea Group Co Ltd
Guangdong Midea White Goods Technology Innovation Center Co Ltd
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Midea Group Co Ltd
Guangdong Midea White Goods Technology Innovation Center Co Ltd
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Publication date
Application filed by Midea Group Co Ltd, Guangdong Midea White Goods Technology Innovation Center Co Ltd filed Critical Midea Group Co Ltd
Priority to CN202111683218.8A priority Critical patent/CN116409212A/en
Publication of CN116409212A publication Critical patent/CN116409212A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • 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

Abstract

The invention discloses a heat exchange system and an automobile, wherein the heat exchange system comprises a first cooling flow path and a second cooling flow path, an electric heater, a battery cooler and a battery heat exchange system are arranged on the first cooling flow path, a motor cooling system is arranged on the second cooling flow path, a switching device is arranged between the first cooling flow path and the second cooling flow path, the switching device enables the heat exchange system to have a first working state and a second working state, when the switching device enables the heat exchange system to be in the first working state, the first cooling flow path and the second cooling flow path respectively form two independent circulating cooling loops, when the switching device enables the heat exchange system to be in the second working state, the first cooling flow path and the second cooling flow path are arranged in series, the working state of the heat exchange system is switched through the switching device, temperature regulation of the motor cooling system and the battery heat exchange system is achieved, and the pipeline structure of the heat exchange system is simplified.

Description

Heat exchange system
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to a heat exchange system.
Background
Under the large environment of energy conservation and emission reduction, new energy automobiles tend to be large, and power batteries on the new energy automobiles can work normally only at reasonable temperature. At present, a three-way valve and a four-way valve are generally adopted in a heat exchange system of an automobile to realize cooling of a motor and heating and cooling of the battery. However, the pipeline in the heat exchange system is connected with a four-way valve through a three-way valve, and the pipeline connection is complex.
Disclosure of Invention
The invention mainly aims to provide a heat exchange system, which aims to solve the technical problem that in the prior art, a circuit of the heat exchange system is complex because a motor is cooled and a battery is heated and cooled in the heat exchange system of an automobile is controlled by a plurality of valves.
In order to achieve the above object, the heat exchange system according to the present invention includes:
comprises a first cooling flow path and a second cooling flow path;
an electric heater, a battery cooler and a battery heat exchange system are arranged on the first cooling flow path;
a motor cooling system is arranged on the second cooling flow path;
and a switching device is arranged between the first cooling flow path and the second cooling flow path, the switching device enables the heat exchange system to have a first working state and a second working state, the first cooling flow path and the second cooling flow path respectively form two independent circulating cooling loops in the first working state, and the first cooling flow path and the second cooling flow path are arranged in series in the second working state.
Optionally, the second cooling flow path includes:
the motor cooling system is arranged in the second main flow path;
one end of the first branch passage is connected with one end of the second main flow passage, and the other end of the first branch passage forms a first communication port; the method comprises the steps of,
one end of the second branch is connected to one end of the second main flow path, the other end of the second branch forms a second communication port, and a liquid storage tank is arranged on the second branch;
and when the heat exchange system is in the first working state, the other end of the second main flow path is communicated with the second communication port, and when the heat exchange system is in the second working state, the other end of the second main flow path is connected with one end of the first cooling flow path, and the first communication port or the second communication port is connected with the other end of the first cooling flow path.
Optionally, a first liquid storage pot is further arranged on the second main flow path, and the first liquid storage pot is used for containing the refrigerant.
Optionally, a first pump body is further disposed on the second main flow path, and the first pump body is disposed between the first liquid storage kettle and the motor cooling system, and is used for guiding the refrigerant in the first liquid storage kettle to the motor cooling system.
Optionally, a second liquid storage pot is further arranged on the first cooling flow path, and the second liquid storage pot is used for containing the refrigerant.
Optionally, a second pump body is further disposed on the first cooling flow path, and the second pump body is disposed between the second liquid storage pot and the electric heater, so as to guide the refrigerant in the second liquid storage pot to the electric heater.
Optionally, the switching device includes a control valve, the control valve including:
the valve body is provided with a first connecting port, a second connecting port, a third connecting port, a fourth connecting port and a fifth connecting port which are arranged at intervals on the periphery of the valve body, wherein the first connecting port is communicated with the other end of the first cooling flow path, the second connecting port is communicated with one end of the first cooling flow path, the third connecting port is communicated with the other end of the second main flow path, the fourth connecting port is communicated with the second communicating port, and the fifth connecting port is communicated with the first communicating port;
the valve core is rotatably arranged in the valve body and is provided with a first position, a second position and a third position relative to the valve body;
the heat exchange system is in a first working state, when the valve core is in the first position, the first connecting port is communicated with the second connecting port, and the third connecting port is communicated with the fourth connecting port;
when the valve core is in the second position or the third position, the second connecting port is communicated with the third connecting port, and the fourth connecting port or the fifth connecting port is communicated with the first connecting port.
Optionally, when the valve core moves to the first position, two ends of one of the at least two connecting channels are respectively communicated with the first connecting port and the second connecting port, two ends of the other one of the at least two connecting channels are respectively communicated with the third connecting port and the fourth connecting port, and when the valve core moves to the second position or the third position, two ends of one of the at least two connecting channels are respectively communicated with the second connecting port and the third connecting port, and two ends of the other one of the at least two connecting channels are respectively communicated with the fourth connecting port or the fifth connecting port and the first connecting port.
Optionally, the heat exchange system further comprises a temperature sensor and a controller, wherein the temperature sensor is used for detecting the temperature of the battery heat exchange system and/or the motor cooling system, and the controller is electrically connected with the temperature sensor, the battery cooler, the battery heater and the switching device.
The invention also provides an automobile, which comprises the heat exchange system, wherein the heat exchange system comprises a first cooling flow path and a second cooling flow path;
an electric heater, a battery cooler and a battery heat exchange system are arranged on the first cooling flow path;
a motor cooling system is arranged on the second cooling flow path;
and a switching device is arranged between the first cooling flow path and the second cooling flow path, the switching device enables the heat exchange system to have a first working state and a second working state, the first cooling flow path and the second cooling flow path respectively form two independent circulating cooling loops in the first working state, and the first cooling flow path and the second cooling flow path are arranged in series in the second working state.
According to the technical scheme provided by the invention, the electric heater, the battery cooler and the battery heat exchange system are all positioned on the first cooling flow path, the motor cooling system is positioned on the second cooling flow path, when the heat exchange system is positioned in the first working state by the switching device, the first cooling flow path and the second cooling flow path respectively form two independent circulating cooling loops, the motor cooling system is cooled by the first cooling flow path independently, when the temperature of the battery heat exchange system is higher, the battery heat exchange system is cooled by the battery cooler, when the temperature of the battery heat exchange system is lower, the temperature of the battery heat exchange system can be raised by the electric heater and/or the battery cooler, when the temperature of the heat exchange system is positioned in the second working state by the switching device, the first cooling flow path and the second cooling flow path are arranged in series, when the temperature of the battery heat exchange system is lower, the motor cooling system can be cooled by the battery cooling system independently, and the motor cooling system can be cooled by the battery cooling system through the battery cooling system, and the temperature of course can be raised by the electric heater and/or the battery cooling system, and the cooling system can be cooled by the cooling system cooling device when the temperature is higher, and the temperature of the battery cooling system can be cooled by the cooling system is higher, and the temperature of the cooling system can be cooled by the cooling system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a heat exchange system according to an embodiment of the present invention;
FIG. 2 is a schematic view of an embodiment of the heat exchange system of FIG. 1 in a first operating state;
FIG. 3 is a schematic view of an embodiment of the heat exchange system of FIG. 1 in a second operating state;
FIG. 4 is a schematic view of another embodiment of the heat exchange system of FIG. 1 in a second operating state;
FIG. 5 is a schematic diagram of an embodiment of the control valve of FIG. 1;
FIG. 6 is an exploded view of the control valve of FIG. 5;
FIG. 7 is a schematic view of the control valve of FIG. 5 from another perspective;
FIG. 8 is a schematic cross-sectional view of the article of FIG. 7 at I-I;
FIG. 9 is a schematic diagram of another embodiment of the control valve of FIG. 1;
FIG. 10 is an exploded view of the structure of FIG. 9;
FIG. 11 is a schematic diagram of the structure of FIG. 9 from another perspective;
fig. 12 is a schematic cross-sectional view at A-A in fig. 11.
Reference numerals illustrate:
Figure BDA0003451092030000041
Figure BDA0003451092030000051
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides a heat exchange system which is mainly applied to an automobile, simplifies a pipeline structure of the heat exchange system, and is shown in fig. 1-4, which are schematic structural views of an embodiment of the heat exchange system provided by the invention, and fig. 5-12, which are schematic structural views of an embodiment of a control valve applied to the heat exchange system.
Referring to fig. 1 to 4, the heat exchange system 100 includes a first cooling flow path 1 and a second cooling flow path 2, an electric heater 3, a battery cooler 4 and a battery heat exchange system 5 are disposed on the first cooling flow path 1, a motor cooling system 6 is disposed on the second cooling flow path 2, a switching device 7 is disposed between the first cooling flow path 1 and the second cooling flow path 2, the switching device 7 enables the heat exchange system 100 to have a first working state and a second working state, in the first working state, the first cooling flow path 1 and the second cooling flow path 2 respectively form two independent circulation cooling loops, and in the second working state, the first cooling flow path 1 and the second cooling flow path 2 are disposed in series.
In the technical scheme provided by the invention, the electric heater 3, the battery cooler 4 and the battery heat exchange system 5 are all positioned on the first cooling flow path 1, the motor cooling system 6 is positioned on the second cooling flow path 2, when the switching device 7 enables the heat exchange system 100 to be in the first working state, the first cooling flow path 1 and the second cooling flow path 2 respectively form two independent circulating cooling loops, the motor cooling system 6 is cooled independently through the first cooling flow path 1, when the temperature of the battery heat exchange system 5 is higher, the battery heat exchange system 5 is cooled through the battery cooler 4, when the temperature of the battery heat exchange system 5 is lower, the battery heat exchange system 5 can be warmed up through the electric heater 3 and/or the battery cooler 4, when the switching device 7 enables the heat exchange system 100 to be in the second working state, the battery heat exchange system 1 and the second cooling flow path 2 are arranged, when the temperature of the battery heat exchange system 5 is lower, the battery heat exchange system can be further cooled through the battery heat exchange system 5 through the switching device 4, and the temperature of course, the temperature of the battery heat exchange system can be further cooled through the cooling system 5, and the temperature of the cooling system can be further controlled through the switching device 4 when the temperature of the battery heat exchange system is higher than the battery heat exchange system 5, and the temperature of the heat exchange system is further cooled through the cooling system 6, and the temperature of the cooling system is further cooled through the cooling system 6.
Specifically, referring to fig. 2 to 4, the second cooling flow path 2 includes a second main flow path 21, a first branching path 22 and a second branching path 23, the motor cooling system 6 is disposed in the second main flow path 21, one end of the first branching path 22 is connected to one end of the second main flow path 21, the other end of the first branching path 22 forms a first communication port 221, one end of the second branching path 23 is connected to one end of the second main flow path 21, the other end of the second branching path 23 forms a second communication port 231, a liquid storage tank 8 is disposed on the second branching path 23, the liquid storage tank 8 is used for accommodating a refrigerant, so as to perform heat exchange with the motor cooling system 6 located on the second main flow path 21, so that the other end of the second main flow path 21 is communicated with the second communication port 231 when the heat exchange system 100 is in the first working state, thereby enabling the second main flow path 21 and the second branching path 23 to be communicated with each other to form the cooling circuit with simple structure. When the heat exchange system 100 is in the second working state, the other end of the second main flow path 21 is connected with one end of the first cooling flow path 1, and the first communication port 221 is connected with the other end of the first cooling flow path 1, so that the second main flow path 21, the first branch path 22 and the first cooling flow path 1 are connected in series, the motor cooling system 6 is cooled by the battery cooler 4 arranged in the first cooling flow path 1, and the battery heat exchange system 5 is cooled by waste heat generated by the operation of the motor cooling system 6. When the heat exchange system 100 is in the second working state, the other end of the second main flow path 21 is connected to one end of the first cooling flow path 1, and the second communication port 231 is connected to the other end of the first cooling flow path 1, so that the second main flow path 21, the second branch path 23 and the first cooling flow path 1 are connected in series, and the liquid storage tank 8 is arranged on the second branch path 23, so that the quantity of the refrigerant flowing in the series circuit is increased, and the heat exchange efficiency is improved.
Referring to fig. 2, a first liquid storage pot 9 is further disposed on the second main flow path 21, the first liquid storage pot 9 is filled with a refrigerant, the first liquid storage pot 9 supplements the second cooling flow path 2 with the refrigerant, and when the air pressure of the second cooling flow path 2 increases in the heat exchange process, the first liquid storage pot 9 can be used for exhausting air, so that the air pressure in the second cooling flow path 2 is recovered, and the liquid level of the refrigerant can be observed through the first liquid storage pot 9, so that the refrigerant is supplemented in time.
In order to enable the refrigerant in the second main flow path 21 to flow from one end to the other end, referring to fig. 2, a first pump body 10 is further provided on the second main flow path 21, and the first pump body 10 is provided between the first liquid storage kettle 9 and the motor cooling system 6 to guide the refrigerant in the first liquid storage kettle 9 to the motor cooling system 6 so as to exchange heat with the motor cooling system 6, thereby changing the temperature of the motor cooling system 6 so that the motor cooling system 6 can operate at a proper temperature.
Specifically, referring to fig. 2, in this embodiment, a second liquid storage pot 101 is further disposed on the first cooling flow path 1, the second liquid storage pot 101 is configured to hold a refrigerant, the second liquid storage pot 101 is configured to supplement the refrigerant to the first cooling flow path 1, and when the air pressure of the first cooling flow path 1 increases during the heat exchange process, the second liquid storage pot 101 is further configured to exhaust air, so that the air pressure in the first cooling flow path 1 is recovered, and the liquid level of the refrigerant is also observed through the second liquid storage pot 101, so as to supplement the refrigerant in time.
Further, referring to fig. 1, the first cooling flow path 1 is further provided with a second pump body 102, the second pump body 102 is disposed between the second liquid storage pot 101 and the electric heater 3, the refrigerant in the second liquid storage pot 101 is led to the electric heater 3 through the second pump body 102, and the electric heater 3 heats the refrigerant output from the second liquid storage pot 101, so that the heated refrigerant exchanges heat with the battery heat exchange system 5, and the battery heat exchange system 5 can work at a proper temperature.
The positions of the electric heater 3 and the battery cooler 4 in the direction of the flow of the refrigerant may be changed in order, that is, the electric heater 3 may be located in front of the battery cooler 4 or may be located behind the battery cooler 4, which is not limited in the present invention.
Specifically, referring to fig. 2, 8, 9 and 12, the switching device 7 includes a control valve 71, the control valve 71 includes a valve body 711 and a valve body 712, a first connection port 7111, a second connection port 7112, a third connection port 7113, a fourth connection port 7114 and a fifth connection port 7115 are provided on a peripheral side of the valve body 711 at intervals, the first connection port 7111 is connected to the other end of the first cooling flow path 1, the second connection port 7112 is connected to one end of the first cooling flow path 1, the third connection port 7113 is connected to the other end of the second main flow path 21, the fourth connection port 7114 is connected to the second communication port 231, the fifth connection port 7115 is connected to the first connection port 221, the valve body 712 is rotatably mounted in the valve body, and the valve body has a first position, a second position and a third position with respect to the valve body 711, wherein when the first connection port 712 is in the first operating state, the first connection port 11 is connected to the first cooling flow path 1, the second connection port 7114 is connected to the first connection port 7114 and the second connection port 7114 is connected to the first cooling flow path 13. When the heat exchange system 100 is in the second working state, the valve core 712 is in the second position or the third position, the second connection port 7112 is communicated with the third connection port 7113, and the fourth connection port 7114 or the fifth connection port 7115 is communicated with the first connection port 7111, so that the first cooling flow path 1 and the second cooling flow path 2 are arranged in series, waste heat generated by the operation of the motor cooling system 6 in the second cooling flow path 2 can be utilized to heat the battery heat exchange system 5 of the first cooling flow path 1, energy consumption is reduced, the battery cooler 4 of the first cooling flow path 1 can be utilized to cool the motor cooling system 6, and a pipeline structure is simplified, so that the pipeline structure is compact.
Further, the valve core 712 includes at least two connection channels 7121, when the valve core 712 moves to the first position, two ends of one connection channel 7121 of the at least two connection channels 7121 are respectively communicated with the first connection port 7111 and the second connection port 7112, two ends of the other connection channel 7121 are respectively communicated with the third connection port 7113 and the fourth connection port 7114, so that the first cooling flow path 1 and the second cooling flow path 2 form two circulation cooling loops which independently operate, when the valve core 712 moves to the second position or the third position, two ends of one connection channel 7121 of the at least two connection channels 7121 are respectively communicated with the second connection port 7112 and the third connection port 7113, two ends of the other connection channel 7121 are respectively communicated with the fourth connection port 7114 or the fifth connection port 7115 and the first connection port 11, so that the first cooling flow path 1 and the second cooling flow path 2 can be simultaneously cooled by the heat exchanger 1 and the second cooling flow path 2 to cool the cooling system 6 by the heat exchanger 5 in the cooling system.
Referring to fig. 6 to 8, in an embodiment, the valve body 711 includes an annular housing 7116, an upper end cover 7117 and a lower end cover 7118, the upper end cover 7117 and the lower end cover 7118 cover the annular housing 7116 to form a receiving cavity a for mounting the valve core 712, the first connecting port 7111, the second connecting port 7112, the third connecting port 7113, the fourth connecting port 7114 and the fifth connecting port 7115 are communicated with the receiving cavity a, an opening b is further formed in the upper end cover 7117, the valve core 712 is rotatably mounted in the receiving cavity a, the valve core 712 has a driving end c, and the driving end c extends out of the receiving cavity a from the opening b for driving connection with a driving motor so that the valve core 712 rotates.
Referring to fig. 6 and 8, a first connection pipe 103, a second connection pipe 104, a third connection pipe 105, a fourth connection pipe 106 and a fifth connection pipe 107 are disposed at intervals along the circumferential direction of the annular housing 7116, the first connection pipe 103 is disposed at the first connection port 7111, the second connection pipe 104 is disposed at the second connection port 7112, the third connection pipe 105 is disposed at the third connection port 7113, the fourth connection pipe 106 is disposed at the fourth connection port 7114, the fifth connection pipe 107 is disposed at the fifth connection port 7115, and the first connection pipe 103, the second connection pipe 104, the third connection pipe 105, the fourth connection pipe 106 and the fifth connection pipe 107 are all in communication with the accommodation chamber a, so that a worker can directly connect a pipeline to the first connection pipe 103, the second connection pipe 104, the third connection pipe 105, the fourth connection pipe 106 and the fifth connection pipe 107 when connecting the pipeline to the valve body 711, thereby enlarging a contact area when the pipeline is installed, and facilitating installation.
Further, the first connecting pipe 103, the second connecting pipe 104, the third connecting pipe 105, the fourth connecting pipe 106 and the fifth connecting pipe 107 may be integrally formed with the annular shell 7116, so that the trouble of assembling is avoided, the structural strength of the annular shell 7116 is improved, and the water leakage phenomenon at the connection positions of the first connecting pipe 103, the second connecting pipe 104, the third connecting pipe 105, the fourth connecting pipe 106 and the fifth connecting pipe 107 and the annular shell 7116 can be avoided.
Referring to fig. 6 and 8, in one embodiment of the present invention, the valve core 712 includes two connecting channels 7121, and the two connecting channels 7121 are disposed in a curved manner. Specifically, the two connecting channels 7121 are in a curved design, so that the resistance of the liquid in the waterway circulation passing through the two connecting channels 7121 can be reduced, and the flowing effect of the liquid can be improved. Of course, in other embodiments, the two connection channels 7121 may be straight pipes, or rectangular pipes, or special pipes with other shapes, so long as they can serve to connect two connection ports of the five connection ports, and no specific limitation is imposed herein.
Referring to fig. 5 to 7, according to any of the above embodiments, the driving end c of the valve element 712 is provided with a clamping portion 7122, and the clamping portion 7122 is configured to be in driving connection with a driving motor. Specifically, the engaging portion 7122 is a plurality of protruding blocks 71221 protruding from the outer surface of the valve core 712 along the circumference of the valve core 712, and the plurality of protruding blocks 71221 are arranged at intervals. A snap fit portion that mates with the snap fit portion 7122 is generally provided at the drive shaft of the drive motor, and the stability of the valve element 712 when rotated is increased by the snap fit portion 7122 and the snap fit portion.
Referring to fig. 9 to 12, in another embodiment, the first connection port 7111, the second connection port 7112, the third connection port 7113, the fourth connection port 7114, and the fifth connection port 7115 provided on the valve body 711 are coplanar. Specifically, the first connection port 7111, the second connection port 7112, the third connection port 7113, the fourth connection port 7114, and the fifth connection port 7115 are provided in a single plane, and when a pipe is connected to the connection ports, the pipe and the first connection port 7111, the second connection port 7112, the third connection port 7113, the fourth connection port 7114, and the fifth connection port 7115 may be sealed together by a single complete gasket, so as to prevent leakage. At the same time, this arrangement also facilitates the integration of the valve body 711 of the control valve 71 with the entire heat exchange system 100 of the motor vehicle.
Referring to fig. 10 and 12, in another embodiment, a plurality of connecting channels 7121 are formed in the valve core 712, the plurality of connecting channels 7121 include a first connecting channel 71211, a second connecting channel 71212, a third connecting channel 71213, a fourth connecting channel 71214 and a fifth connecting channel 71215, the third connecting port 7113 and the fifth connecting port 7115 are disposed at intervals along the extending direction of the rotating shaft of the valve core 712, when the valve core 712 is in the first position, the third connecting port 7113 and the fifth connecting port 7115 are communicated through the first connecting channel 71211, so that the motor cooling system 6, the first liquid storage pot 9, the liquid storage tank 8 and the first pump body 10 form an independent circulation cooling circuit, and exchange heat with the refrigerant in the liquid storage tank 8, thereby realizing cooling of the motor cooling system 6 and preventing the motor cooling system 6 from being too high in temperature and causing a short circuit. The second connection channel 71212 is isolated from the first connection channel 71211, the second connection channel 71212 is arranged to extend along the extending direction of the rotating shaft of the valve core 712, the first connection port 7111 and the second connection port 7112 are arranged to be spaced along the extending direction of the rotating shaft of the valve core 712, when the valve core 712 is located at the first position, the first connection port 7111 and the second connection port 7112 are communicated through the second connection channel 71212, so that the battery heat exchange system 5, the electric heater 3, the battery cooler 4, the second pump body 102 and the second liquid storage pot 101 form an independent circulation cooling loop, and therefore, the refrigerant in the second liquid storage pot 101 circulates in the circulation cooling loop, and under the action of the electric heater 3 or the battery cooler 4, the battery heat exchange system 5 is heated or cooled, so that the battery can work at a proper temperature. The third connection channel 71213 is isolated from the first connection channel 71211 and the second connection channel 71212, and the fourth connection channel 71214 is isolated from the first connection channel 71211 and the second connection channel 71212; the third connecting channel 71213 extends along the circumferential direction of the rotating shaft of the valve core 712, the fourth connecting channel 71214 extends along the circumferential direction of the rotating shaft of the valve core 712, and the third connecting channel 71213 and the fourth connecting channel 71214 are disposed adjacently; the third connection port 7113 and the first connection port 7111 extend along the circumferential direction of the rotating shaft of the valve core 712, the second connection port 7112 and the fourth connection port 7114 extend along the circumferential direction of the rotating shaft of the valve core 712, when the valve core 712 is located at the second position, the third connection port 7113 and the second connection port 7112 are communicated through the third connection channel 71213, and the fourth connection port 7114 and the first connection port 7111 are communicated through the fourth connection channel 71214, so that the battery heat exchange system 5, the electric heater 3, the battery cooler 4, the second pump body 102, the second liquid storage pot 101, the motor cooling system 6, the first liquid storage pot 9, the liquid storage tank 8 and the first pump body 10 form a circulation loop in series, and not only can the waste heat generated when the motor cooling system 6 works be utilized to heat the battery heat exchange system 5, but also the battery cooler 4 can be utilized to cool the motor cooling system 6. The fifth connection channel 71215 is located between the second connection channel 71212, the third connection channel 71213 and the fourth connection channel 71214, when the valve core 712 is in the first position, the third connection port 7113 and the fifth connection port 7115 are communicated through the first connection channel 71211, the first connection port 7111 and the second connection port 7112 are communicated through the second connection channel 71212, the fourth connection port 7114 and the fifth connection channel 71215 are communicated, the fifth connection channel 71215 is isolated from the second connection channel 71212, the third connection channel 71213 and the fourth connection channel 71214, and the fourth connection port 7114 and the fifth connection channel 71215 are in a short circuit state at this time, and form a closed loop, so that the loop does not participate in the circulation process of the refrigerant of the circulation cooling loop where the motor cooling system 6 is located.
Specifically, the first connection channel 71211, the second connection channel 71212, the third connection channel 71213, the fourth connection channel 71214 and the fifth connection channel 71215 are mainly used for communicating two of the five connection ports, and when two connection ports are communicated through the corresponding connection channels, they should be an independent circulation water channel and not communicated with other circulation water channels, so that the first connection channel 71211, the second connection channel 71212, the third connection channel 71213, the fourth connection channel 71214 and the fifth connection channel 71215 need to be isolated from each other.
Referring to fig. 9 to 12, in an embodiment, the valve body 711 includes a main body portion 7119 and an extension portion 7110, the main body portion 7119 is connected to the extension portion 7110, the valve core 712 is mounted on the main body portion 7119, a cross section of the main body portion 7119 is circular, and the first connection port 7111, the second connection port 7112, the third connection port 7113, the fourth connection port 7114, and the fifth connection port 7115 are opened on the extension portion 7110.
Specifically, the mounting location for mounting the valve element 712 is formed in the main body portion 7119, the valve element 712 is mounted in the main body portion 7119, and since the valve element 712 is rotatable with respect to the main body portion 7119, the cross section of the main body portion 7119 should be circular, so that the valve element 712 can rotate in the main body portion 7119. The first connection port 7111, the second connection port 7112, the third connection port 7113, the fourth connection port 7114 and the fifth connection port 7115 are provided with the extension portion 7110 and are arranged in a coplanar manner, so that a pipeline is connected with the first connection port 7111, the second connection port 7112, the third connection port 7113, the fourth connection port 7114 and the fifth connection port 7115 conveniently, and the integrated design of the control valve 71 and the heat exchange system 100 of the whole automobile is facilitated.
Referring to fig. 10 and 12, in an embodiment, the control valve 71 further includes a gasket 713, and the gasket 713 is disposed in the main body portion 7119 and is located at a connection between the main body portion 7119 and the extension portion 7110. Specifically, to avoid that the liquid in the two communicating connection ports flows into the other connection passage 7121 or the connection port through the gap between the valve body 711 and the valve spool 712 when the control valve 71 is operated, the control valve 71 is further provided with the gasket 713, and the gasket 713 is provided in the main body portion 7119 near the extension portion 7110 for sealing the liquid. Meanwhile, the material of the gasket 713 is a composite material, and since the valve core 712 needs to rotate in the main body portion 7119 when switching between the first position and the second position, a surface of the gasket 713 near the valve body 711 is a wear-resistant material, and a surface of the gasket 713 far from the valve body 711 may be adhered to the main body portion 7119 by an adhesive material.
Specifically, the heat exchange system 100 further includes a temperature sensor and a controller, the temperature sensor is used to detect the temperature of the battery heat exchange system 5 and/or the motor cooling system 6, and the controller is electrically connected with the temperature sensor, the battery cooler 4, the battery heater and the switching device 7, and the temperature sensor is used to monitor the temperature of the battery heat exchange system 5 and/or the motor cooling system 6 in real time, so as to control the switching device 7 to work, so that the first cooling flow path 1 and the second cooling flow path 2 respectively form two independent circulation cooling loops or the first cooling flow path 1 and the second cooling flow path 2 are arranged in series, thereby improving the energy utilization rate of the heat exchange system 100.
The invention also provides an automobile, the automobile comprises the heat exchange system 100, and the specific structure of the heat exchange system 100 refers to the above embodiments, and because the automobile adopts all the technical schemes of all the embodiments, the automobile at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the specification and drawings of the present invention or direct/indirect application in other related technical fields are included in the scope of the present invention.

Claims (10)

1. A heat exchange system comprising a first cooling flow path and a second cooling flow path;
an electric heater, a battery cooler and a battery heat exchange system are arranged on the first cooling flow path;
a motor cooling system is arranged on the second cooling flow path;
and a switching device is arranged between the first cooling flow path and the second cooling flow path, the switching device enables the heat exchange system to have a first working state and a second working state, the first cooling flow path and the second cooling flow path respectively form two independent circulating cooling loops in the first working state, and the first cooling flow path and the second cooling flow path are arranged in series in the second working state.
2. The heat exchange system of claim 1, wherein the second cooling flow path comprises:
the motor cooling system is arranged in the second main flow path;
one end of the first branch passage is connected with one end of the second main flow passage, and the other end of the first branch passage forms a first communication port; the method comprises the steps of,
one end of the second branch is connected to one end of the second main flow path, the other end of the second branch forms a second communication port, and a liquid storage tank is arranged on the second branch;
and when the heat exchange system is in the first working state, the other end of the second main flow path is communicated with the second communication port, and when the heat exchange system is in the second working state, the other end of the second main flow path is connected with one end of the first cooling flow path, and the first communication port or the second communication port is connected with the other end of the first cooling flow path.
3. The heat exchange system of claim 2, wherein a first reservoir is further provided in the second main flow path, the first reservoir being adapted to contain a refrigerant.
4. A heat exchange system as claimed in claim 3 wherein a first pump body is also provided in the second main flow path, the first pump body being provided between the first reservoir and the motor cooling system for directing refrigerant in the first reservoir to the motor cooling system.
5. The heat exchange system of claim 1, wherein a second reservoir is further provided on the first cooling flow path, the second reservoir for containing a refrigerant.
6. The heat exchange system as set forth in claim 5, wherein a second pump body is further provided on said first cooling flow path, said second pump body being provided between said second reservoir and said electric heater for guiding refrigerant in said second reservoir to said electric heater.
7. The heat exchange system of claim 2, wherein the switching device comprises a control valve comprising:
the valve body is provided with a first connecting port, a second connecting port, a third connecting port, a fourth connecting port and a fifth connecting port which are arranged at intervals on the periphery of the valve body, wherein the first connecting port is communicated with the other end of the first cooling flow path, the second connecting port is communicated with one end of the first cooling flow path, the third connecting port is communicated with the other end of the second main flow path, the fourth connecting port is communicated with the second communicating port, and the fifth connecting port is communicated with the first communicating port;
the valve core is rotatably arranged in the valve body and is provided with a first position, a second position and a third position relative to the valve body;
the heat exchange system is in a first working state, when the valve core is in the first position, the first connecting port is communicated with the second connecting port, and the third connecting port is communicated with the fourth connecting port;
when the valve core is in the second position or the third position, the second connecting port is communicated with the third connecting port, and the fourth connecting port or the fifth connecting port is communicated with the first connecting port.
8. The heat exchange system according to claim 7, wherein the valve cartridge includes at least two connection passages, both ends of one of the at least two connection passages are respectively communicated with the first connection port and the second connection port when the valve cartridge is moved to the first position, both ends of the other one of the at least two connection passages are respectively communicated with the third connection port and the fourth connection port, and both ends of one of the at least two connection passages are respectively communicated with the second connection port and the third connection port when the valve cartridge is moved to the second position or the third position, and both ends of the other one of the at least two connection passages are respectively communicated with the fourth connection port or the fifth connection port and the first connection port.
9. The heat exchange system of claim 1, further comprising a temperature sensor for detecting a temperature of the battery heat exchange system and/or the motor cooling system, and a controller electrically connected to the temperature sensor, the battery cooler, the battery heater, and the switching device.
10. An automobile comprising a heat exchange system according to any one of claims 1 to 9.
CN202111683218.8A 2021-12-31 2021-12-31 Heat exchange system Pending CN116409212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111683218.8A CN116409212A (en) 2021-12-31 2021-12-31 Heat exchange system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111683218.8A CN116409212A (en) 2021-12-31 2021-12-31 Heat exchange system

Publications (1)

Publication Number Publication Date
CN116409212A true CN116409212A (en) 2023-07-11

Family

ID=87053718

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111683218.8A Pending CN116409212A (en) 2021-12-31 2021-12-31 Heat exchange system

Country Status (1)

Country Link
CN (1) CN116409212A (en)

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