CN112549935A - Coolant circulation system and vehicle - Google Patents
Coolant circulation system and vehicle Download PDFInfo
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- CN112549935A CN112549935A CN202011432704.8A CN202011432704A CN112549935A CN 112549935 A CN112549935 A CN 112549935A CN 202011432704 A CN202011432704 A CN 202011432704A CN 112549935 A CN112549935 A CN 112549935A
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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
- B60K1/00—Arrangement or mounting of electrical propulsion units
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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
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
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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
- B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
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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
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
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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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/006—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric motors
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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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- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention discloses a cooling liquid circulating system and a vehicle, wherein the cooling liquid circulating system comprises an expansion kettle, a motor electric control device, a cooler, a battery pack and a radiator; the expansion kettle is provided with a first water outlet, a second water outlet, a first water inlet and a second water inlet; the cooler and the battery pack are sequentially communicated through a first pipeline, and two ends of the first pipeline are respectively communicated with a first water outlet and a first water inlet; the motor electric control device and the radiator are sequentially communicated through a second pipeline, and two ends of the second pipeline are respectively communicated with a second water outlet and a second water inlet; the first water outlet can be communicated with one of the first water inlet and the second water inlet, and the second water outlet can be communicated with the other one of the first water inlet and the second water inlet. The invention replaces two expansion kettles in the prior art, can enable the cooling liquid circulation system to meet different working conditions, reduces the number of parts and simplifies the pipeline arrangement.
Description
Technical Field
The invention relates to the technical field of vehicle manufacturing, in particular to a cooling liquid circulating system and a vehicle.
Background
With the development of science and technology, the development of electric vehicles is rapidly advanced. In the existing electric automobile, a cooling liquid circulating system generally has two independent battery cooling liquid circulating loops and motor cooling liquid circulating loops, and the battery cooling liquid circulating loop and the motor cooling liquid circulating loop are respectively provided with an expansion kettle which is only responsible for supplementing system cooling liquid or balancing pressure fluctuation. Because two expansion kettles need to be configured, the battery cooling liquid circulation loop and the motor cooling liquid circulation loop occupy a large amount of arrangement space, and meanwhile, the manufacturing cost of the battery cooling liquid circulation loop and the motor cooling liquid circulation loop is increased. And various parts in the battery cooling liquid circulation loop and the motor cooling liquid circulation loop are finally and completely arranged in the front cabin of the electric automobile in a mode of connecting criss-cross pipelines and valve bodies, so that the arrangement and installation of parts in the front cabin of the automobile, which are originally narrow in space, are difficult, parts are easy to interfere, and the attractiveness of the whole automobile is also very influenced. On the other hand, a large amount of heat generated by the motor during operation is usually directly dissipated to the external environment of the electric automobile, and the existing cooling liquid circulating system cannot utilize the residual heat, so that great energy waste is caused.
Disclosure of Invention
The invention mainly aims to provide a cooling liquid circulating system and a vehicle, and aims to solve the technical problems that the cooling liquid circulating system in the prior art is large in occupied space, high in manufacturing cost and easy to interfere in pipeline arrangement.
In order to achieve the purpose, the cooling liquid circulating system provided by the invention comprises an expansion kettle, a motor electric control device, a cooler, a battery pack and a radiator; the expansion kettle is provided with a first water outlet, a second water outlet, a first water inlet and a second water inlet; the cooler and the battery pack are sequentially communicated through a first pipeline, and two ends of the first pipeline are respectively communicated with the first water outlet and the first water inlet; the motor electric control device and the radiator are sequentially communicated through a second pipeline, and two ends of the second pipeline are respectively communicated with the second water outlet and the second water inlet; the first water outlet is communicable with one of the first water inlet and the second water inlet, and the second water outlet is communicable with the other of the first water inlet and the second water inlet.
Preferably, the cooling liquid circulation system further comprises a multi-way rotary valve arranged in the expansion kettle, and the multi-way rotary valve can rotate to a first position or a second position relative to the expansion kettle; when the multi-way rotary valve rotates to a first position, the first water outlet is communicated with the first water inlet to form a first channel, and the second water outlet is communicated with the second water inlet to form a second channel; when the multi-way rotary valve rotates to a second position, the first water outlet and the second water inlet are communicated to form a third channel, and the first water inlet and the second water outlet form a fourth channel.
Preferably, the expansion kettle is further provided with a third water inlet, the cooling liquid circulating system further comprises a multi-way valve arranged on the second pipeline, a water inlet of the multi-way valve can be communicated with a water outlet of the motor electric control device, and the third water inlet and a water inlet of the radiator can be communicated with a water outlet of the multi-way valve; the multi-way rotary valve can also rotate to a third position relative to the expansion kettle, when the multi-way rotary valve rotates to the third position, the first water outlet and the third water inlet are communicated to form a fifth channel, and the first water inlet and the second water outlet are communicated to form a fourth channel.
Preferably, the multi-way rotary valve is connected with the expansion kettle in a sealing mode through a sealing gasket, one side, facing the multi-way rotary valve, of the expansion kettle is provided with a groove, and the sealing gasket is provided with a limiting boss in clamping fit with the groove.
Preferably, the multi-way rotary valve comprises a valve core, an end cover and a rotary shaft, wherein the rotary shaft sequentially penetrates through the valve core and the end cover, the valve core and the end cover are connected with the end cover in a sealing mode through a first sealing ring and a second sealing ring, the first sealing ring and the second sealing ring are all sleeved outside the rotary shaft, and the first sealing ring and the second sealing ring are sequentially arranged in the extending direction of the rotary shaft.
Preferably, the valve core comprises a main body part and a limiting ring connected with the main body part, the sealing gasket is sleeved outside the main body part, the limiting ring is connected to one end, close to the end cover, of the main body part, and the edge of the sealing gasket abuts against the limiting ring.
Preferably, the sealing gasket is provided with a sealing boss, the extending direction of the sealing boss is consistent with the extending direction of the sealing gasket, the sealing boss is arranged on one side, facing the main body part, of the sealing gasket, and the sealing boss protrudes towards the main body part so as to abut against the main body part.
Preferably, the sealing gasket is in a hollow cylindrical shape, the number of the sealing bosses is multiple, and the sealing bosses are arranged along the circumferential direction of the sealing gasket at intervals.
Preferably, coolant liquid circulation system still includes the air conditioner, the air conditioner is including setting up in the evaporimeter of first branch road and setting up in the condenser and the compressor of second branch road, the cooler sets up on the third branch road, the third branch road first branch road and the second branch road is parallelly connected in proper order to be set up, just the cooler with be provided with first expansion valve between the evaporimeter, the evaporimeter with be provided with the second expansion valve between the condenser.
The invention also proposes a vehicle comprising a coolant circulation system as described above.
According to the technical scheme, when the cooling liquid circulation system is assembled, the cooler and the battery pack can be sequentially communicated through the first pipeline, the motor electric control device and the radiator are sequentially communicated through the second pipeline, then, two ends of the first pipeline can be respectively communicated with the first water outlet and the first water inlet, two ends of the second pipeline are respectively communicated with the second water outlet and the second water inlet, the assembly of the cooling liquid circulation system can be completed, and the cooling liquid circulation system can be switched between the first working mode and the second working mode. In the first working mode, the first water outlet and the first water inlet can be communicated, the second water outlet and the second water inlet can be communicated, at the moment, cooling liquid in the cooling liquid circulating system can sequentially pass through the cooler and the battery pack from the first water outlet of the expansion kettle and finally flows back to the first water outlet of the expansion kettle through the first water inlet, and the battery pack can be cooled through the cooler; meanwhile, the cooling liquid in the cooling liquid circulating system can sequentially pass through the motor electric control device and the radiator from a second water outlet of the expansion kettle and finally flows back to the second water outlet of the expansion kettle through a second water inlet, and the motor electric control device can be cooled through the radiator; when the external environment temperature is low, the low-temperature quick-charging working condition, the coolant is charged, the maintenance charging or the system exhaust is carried out, the second working mode can be entered, the first water outlet and the second water inlet can be communicated, the second water outlet and the first water inlet are communicated simultaneously, at the moment, the coolant in the coolant circulating system can sequentially pass through the cooler and the battery pack from the first water outlet of the expansion kettle, then sequentially pass through the first water inlet and the second water outlet and then enter the radiator through the electric motor control device, and finally, the coolant flows back to the first water outlet through the second water inlet, and the battery pack and the electric motor control device can be cooled by the radiator. The cooling liquid circulation system not only can integrate the cooling of the battery pack and the motor electric control device into the same cooling liquid circulation system and can share the same expansion kettle, but also replaces the mode of adopting two expansion kettles in the prior art, saves the occupied space and the production cost of the cooling liquid circulation system, and simultaneously can ensure that the cooling liquid circulation system can meet different working conditions by switching the communication mode among the first water outlet, the second water outlet, the first water inlet and the second water inlet, reduces the number of parts, simplifies the pipeline arrangement and can effectively avoid the condition of easy interference among the parts.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of a cooling fluid circulation system according to an embodiment of the present invention in an operating mode;
FIG. 2 is a schematic view of a cooling fluid circulation system according to another embodiment of the present invention in another operation mode;
FIG. 3 is a schematic view of a cooling fluid circulation system in yet another operating mode according to an embodiment of the present invention;
FIG. 4 is a schematic view of a portion of a cooling fluid circulation system according to an embodiment of the present invention;
FIG. 5 is a schematic view of a multi-way rotary valve and gasket assembly of a coolant circulation system according to an embodiment of the present invention;
FIG. 6 is a schematic view of the assembly of the valve core and the rotating shaft of the cooling fluid circulation system according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a gasket structure of a cooling fluid circulation system according to an embodiment of the invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment 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 relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The description of the orientations of "up", "down", etc. in the present invention is based on the orientation shown in fig. 6, and is merely used to explain the relative positional relationship between the components in the posture shown in fig. 6, and if the specific posture is changed, the directional indication is changed accordingly.
The invention provides a cooling liquid circulating system.
As shown in fig. 1 to 7, in an embodiment of the present invention, the cooling liquid circulation system 100 includes an expansion tank 1, a motor control device 2, a cooler 3, a battery pack 5 and a radiator 6; the expansion kettle 1 is provided with a first water outlet 11a, a second water outlet 11b, a first water inlet 12a and a second water inlet 12 b; the cooler 3 and the battery pack 5 are sequentially communicated through a first pipeline 7, and two ends of the first pipeline 7 are respectively communicated with a first water outlet 11a and a first water inlet 12 a; the motor electric control device 2 and the radiator 6 are sequentially communicated through a second pipeline 8, and two ends of the second pipeline 8 are respectively communicated with a second water outlet 11b and a second water inlet 12 b; the first water outlet 11a can communicate with one of the first and second water inlets 12a and 12b, and the second water outlet 11b can communicate with the other of the first and second water inlets 12a and 12 b.
The cooling liquid circulation system 100 in this embodiment is mainly applied to a vehicle, the motor electric control device 2 generally includes a charging assembly 21, a driving assembly 22 and a motor which are sequentially communicated, the charging assembly 21 generally includes a high-voltage junction box, a charger and a direct current charger (DCDC) which are sequentially communicated, the driving assembly 22 generally includes a controller, a reducer and a motor which are sequentially communicated, the battery pack 5 in this embodiment is a power battery pack of the vehicle, in order to ensure a working environment of the battery pack 5, the first pipeline 7 is further provided with a heater 4, and the heater 4 is arranged between the cooler 3 and the battery pack 5.
During the assembly of this embodiment coolant circulation system 100, can communicate cooler 3 and battery package 5 in proper order through first pipeline 7, communicate motor electrically controlled device 2 and radiator 6 in proper order through second pipeline 8 simultaneously, can communicate the both ends of first pipeline 7 with first delivery port 11a and first water inlet 12a respectively afterwards, the both ends of second pipeline 8 communicate with second delivery port 11b and second water inlet 12b respectively, just can accomplish the assembly of coolant circulation system 100, coolant circulation system 100 at this moment can switch between first mode and second mode. As shown in fig. 1, when the coolant circulation system 100 is in the first operation mode, the first water outlet 11a and the first water inlet 12a can be communicated, and the second water outlet 11b and the second water inlet 12b can be communicated, at this time, the coolant in the coolant circulation system 100 can sequentially pass through the cooler 3 and the battery pack 5 from the first water outlet 11a of the expansion tank 1, and finally flows back to the first water outlet 11a of the expansion tank 1 through the first water inlet 12a, and the battery pack 5 can be cooled by the cooler 3; meanwhile, the cooling liquid in the cooling liquid circulation system 100 can sequentially pass through the motor electric control device 2 and the radiator 6 from the second water outlet 11b of the expansion kettle 1 and finally flow back to the second water outlet 11b of the expansion kettle 1 through the second water inlet 12b, and the motor electric control device 2 can be cooled through the radiator 6; when the external environment temperature is low, the low-temperature quick-charging working condition, the coolant is charged, the maintenance charging or the system is exhausted, as shown in fig. 2, the coolant circulating system 100 can enter the second working mode, the first water outlet 11a and the second water inlet 12b can be communicated, meanwhile, the second water outlet 11b and the first water inlet 12a are communicated, at this time, the coolant in the coolant circulating system 100 can sequentially pass through the cooler 3 and the battery pack 5 from the first water outlet 11a of the expansion kettle 1, then sequentially pass through the first water inlet 12a and the second water outlet 11b, then enter the radiator 6 through the motor electric control device 2, finally flow back to the first water outlet 11a through the second water inlet 12b, and the radiator 6 can be used for cooling the battery pack 5 and the motor electric control device 2 together. The cooling liquid circulation system 100 of this embodiment can not only integrate the cooling of battery package 5 and motor electrically controlled device 2 in same cooling liquid circulation system 100, can share same expansion kettle 1, replaced the mode that adopts two expansion kettles 1 among the prior art, practice thrift occupation space and the manufacturing cost of cooling liquid circulation system 100, simultaneously through switching first delivery port 11a, second delivery port 11b, the intercommunication mode between first water inlet 12a and the second water inlet 12b, can also make cooling liquid circulation system 100 satisfy different operating modes, can also simplify the pipe arrangement when having reduced spare part quantity, can effectively avoid the condition of easily interfering between the spare part.
Specifically, the cooling liquid circulation system 100 further comprises a multi-way rotary valve 9 arranged in the expansion kettle 1, and the multi-way rotary valve 9 can rotate to a first position or a second position relative to the expansion kettle 1; when the multi-way rotary valve 9 rotates to the first position, the first water outlet 11a and the first water inlet 12a are communicated to form a first channel 13, and the second water outlet 11b and the second water inlet 12b are communicated to form a second channel 14; when the multiport rotary valve 9 rotates to the second position, the first water outlet 11a and the second water inlet 12b are communicated to form a third channel 15, and the first water inlet 12a and the second water outlet 11b form a fourth channel 16.
The multiport rotary valve 9 in this embodiment may adopt a five-way valve, and when the vehicle is in different working conditions, communication among the first channel 13, the second channel 14, the third channel 15, the fourth channel 16 or the fifth channel 17 may be realized by rotating the multiport rotary valve 9. In the first mode, the multi-way rotary valve 9 can be rotated to the first position, the first water outlet 11a and the first water inlet 12a are communicated to form a first channel 13, meanwhile, the second water outlet 11b and the second water inlet 12b are communicated to form a second channel 14, the battery pack 5 can be cooled through the cooler 3, and the motor electric control device 2 can be cooled through the radiator 6; in the second mode, the multi-way rotary valve 9 can be rotated to the second position, the first water outlet 11a and the second water inlet 12b are communicated to form the third channel 15, meanwhile, the first water inlet 12a and the second water outlet 11b form the fourth channel 16, and the battery pack 5 and the motor electric control device 2 can be cooled by the radiator 6.
In this embodiment, the expansion kettle 1 is further provided with a third water inlet 12c, the cooling liquid circulating system 100 further includes a multi-way valve 70 disposed on the second pipeline 8, a water inlet of the multi-way valve 70 can be communicated with a water outlet of the motor electric control device 2, and both the third water inlet 12c and a water inlet of the radiator 6 can be communicated with a water outlet of the multi-way valve 70; the multi-way rotary valve 9 can also rotate to a third position relative to the expansion kettle 1, when the multi-way rotary valve 9 rotates to the third position, the first water outlet 11a and the third water inlet 12c are communicated to form a fifth channel 17, and the first water inlet 12a and the second water outlet 11b are communicated to form a fourth channel 16.
The multi-way valve 70 in this embodiment may adopt a three-way valve in the prior art, when the vehicle is in a low-temperature heating condition, as shown in fig. 3, the multi-way rotary valve 9 may be rotated to a third position to enable the coolant circulation system 100 to enter a third operating mode, at this time, the first water outlet 11a and the third water inlet 12c are communicated to form a fifth channel 17, the first water inlet 12a and the second water outlet 11b are communicated to form a fourth channel 16, the coolant in the coolant circulation system 100 may sequentially pass through the first water outlet 11a, the first pipeline 7, the first water inlet 12a, the fourth channel 16, the motor electric control device 2, the third water inlet 12c and the fifth channel 17, and flow back to the first water outlet 11a through the fifth channel 17, at this time, the coolant in the radiator 6 does not pass through the radiator 6, but heats the battery pack 5 through heat generated by the motor electric control device 2, the heating resources can be saved, and the waste heat can be recycled.
As shown in fig. 5, in the cooling liquid circulation system 100 of this embodiment, the multi-way rotary valve 9 is hermetically connected to the expansion tank 1 through a sealing gasket 10, a groove (not shown) is formed on one side of the expansion tank 1 facing the multi-way rotary valve 9, and the sealing gasket 10 is provided with a limiting boss 101 which is in clamping fit with the groove. The joint between spacing boss 101 and the recess is passed through to this embodiment for when the relative expansion kettle 1 of many-way rotary valve 9 rotated, can avoid sealed the condition that fills up 10 relative expansion kettle 1 and rotate and influence sealed effect. In an embodiment, the multi-way rotary valve 9 includes a valve core 91, an end cap 92 and a rotating shaft 93, the rotating shaft 93 sequentially passes through the valve core 91 and the end cap 92, the valve core 91 and the end cap 92 are hermetically connected by a first sealing ring 94, a second sealing ring 95 and the end cap 92, the first sealing ring 94 and the second sealing ring 95 are sleeved outside the rotating shaft 93, and the first sealing ring 94 and the second sealing ring 95 are sequentially disposed along an extending direction of the rotating shaft 93. First sealing washer 94 and second sealing washer 95 set up along upper and lower direction interval, can not only cooperate jointly to seal spacing, can also promote the assembly axiality between case 91 and the end cover 92.
As shown in fig. 6, in this embodiment, the valve element 91 includes a main body portion 911 and a retainer ring 912 connected to the main body portion 911, the gasket 10 is sleeved outside the main body portion 911, the retainer ring 912 is connected to an end of the main body portion 911 close to the end cap 92, and an edge of the gasket 10 abuts against the retainer ring 912. The outer surface of the limiting ring 912 protrudes out of the outer surface of the sealing gasket 10, so that the situation that the sealing gasket 10 rolls and deforms to cause poor sealing when the valve core 91 rotates can be prevented. As shown in fig. 7, the gasket 10 in this embodiment is provided with a plurality of sealing bosses 102, an extending direction of each sealing boss 102 is the same as an extending direction of the gasket 10, the sealing bosses 102 are provided on one side of the gasket 10 facing the main body portion 911, the sealing bosses 102 protrude in the direction of the main body portion 911 to abut against the main body portion 911, the gasket 10 is in a hollow cylindrical shape, the number of the sealing bosses 102 is plural, and the plurality of sealing bosses 102 are arranged at intervals in the circumferential direction of the gasket 10. The sealing bosses 102 in this embodiment are all tightly abutted against the main body 911, so that the sealing performance of the valve core 91 and the expansion tank 1 can be ensured.
In this embodiment, the cooling liquid circulation system 100 further includes an air conditioner 20, the air conditioner 20 includes an evaporator 201 disposed on the first branch 30, a condenser 202 disposed on the second branch 40, and a compressor 203, the cooler 3 is disposed on a third branch (not shown), the third branch, the first branch 30, and the second branch 40 are sequentially disposed in parallel, a first expansion valve 50 is disposed between the cooler 3 and the evaporator 201, and a second expansion valve 60 is disposed between the evaporator 201 and the condenser 202. The cooler 3 in this embodiment can provide the evaporator 201, the condenser 202 and the compressor 203 of the air conditioner 20 with cooling liquid, and can provide the evaporator 201, the condenser 202 and the compressor 203 with cooling liquid of different flow rates by adjusting the first expansion valve 50 and the second expansion valve 60, so as to adapt the evaporator 201, the condenser 202 and the compressor 203 to different working conditions of the air conditioner 20.
The invention also proposes a vehicle comprising a cooling liquid circulation system 100 as described above, the specific structure of the cooling liquid circulation system 100 referring to the above-described embodiment. Since the vehicle adopts all technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A cooling liquid circulating system is characterized by comprising an expansion kettle, a motor electric control device, a cooler, a battery pack and a radiator; the expansion kettle is provided with a first water outlet, a second water outlet, a first water inlet and a second water inlet;
the cooler and the battery pack are sequentially communicated through a first pipeline, and two ends of the first pipeline are respectively communicated with the first water outlet and the first water inlet;
the motor electric control device and the radiator are sequentially communicated through a second pipeline, and two ends of the second pipeline are respectively communicated with the second water outlet and the second water inlet;
the first water outlet is communicable with one of the first water inlet and the second water inlet, and the second water outlet is communicable with the other of the first water inlet and the second water inlet.
2. The coolant circulation system of claim 1 further comprising a multiport rotary valve disposed within said expansion kettle, said multiport rotary valve being rotatable relative to said expansion kettle to a first position or a second position;
when the multi-way rotary valve rotates to a first position, the first water outlet is communicated with the first water inlet to form a first channel, and the second water outlet is communicated with the second water inlet to form a second channel;
when the multi-way rotary valve rotates to a second position, the first water outlet and the second water inlet are communicated to form a third channel, and the first water inlet and the second water outlet form a fourth channel.
3. The cooling liquid circulation system according to claim 2, wherein the expansion kettle is further provided with a third water inlet, the cooling liquid circulation system further comprises a multi-way valve arranged on the second pipeline, a water inlet of the multi-way valve can be communicated with a water outlet of the motor electric control device, and the third water inlet and a water inlet of the radiator can be communicated with a water outlet of the multi-way valve;
the multi-way rotary valve can also rotate to a third position relative to the expansion kettle, when the multi-way rotary valve rotates to the third position, the first water outlet and the third water inlet are communicated to form a fifth channel, and the first water inlet and the second water outlet are communicated to form a fourth channel.
4. The coolant circulation system of claim 2 wherein the multiport rotary valve is sealingly connected to the expansion pot by a gasket, the expansion pot having a recess on a side facing the multiport rotary valve, the gasket having a stop boss snap-fitted into the recess.
5. The coolant circulation system of claim 4, wherein the multi-way rotary valve includes a valve core, an end cap and a rotary shaft, the rotary shaft sequentially passes through the valve core and the end cap, the valve core and the end cap are hermetically connected through a first seal ring, a second seal ring and the end cap, the first seal ring and the second seal ring are both sleeved outside the rotary shaft, and the first seal ring and the second seal ring are sequentially arranged along the extending direction of the rotary shaft.
6. The coolant circulation system of claim 5 wherein the valve core includes a main body portion and a retaining ring connected to the main body portion, the gasket is sleeved outside the main body portion, the retaining ring is connected to an end of the main body portion adjacent to the end cap, and an edge of the gasket abuts against the retaining ring.
7. The coolant circulation system according to claim 6, wherein the gasket is provided with a sealing boss, an extending direction of the sealing boss is identical to an extending direction of the gasket, the sealing boss is provided on a side of the gasket facing the main body, and the sealing boss protrudes in a direction of the main body to abut against the main body.
8. The coolant circulation system according to claim 7, wherein said gasket has a hollow cylindrical shape, and a plurality of said sealing projections are provided at intervals in a circumferential direction of said gasket.
9. The cooling liquid circulation system according to any one of claims 1 to 8, further comprising an air conditioner including an evaporator provided in the first branch and a condenser provided in the second branch, and a compressor, wherein the cooler is provided in the third branch, the first branch, and the second branch are sequentially provided in parallel, and a first expansion valve is provided between the cooler and the evaporator, and a second expansion valve is provided between the evaporator and the condenser.
10. A vehicle, characterized in that the vehicle comprises a coolant circulation system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011432704.8A CN112549935A (en) | 2020-12-09 | 2020-12-09 | Coolant circulation system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011432704.8A CN112549935A (en) | 2020-12-09 | 2020-12-09 | Coolant circulation system and vehicle |
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| Publication Number | Publication Date |
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| CN112549935A true CN112549935A (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011432704.8A Pending CN112549935A (en) | 2020-12-09 | 2020-12-09 | Coolant circulation system and vehicle |
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| Country | Link |
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| CN (1) | CN112549935A (en) |
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Application publication date: 20210326 |