CN207955255U - Electric vehicle based on heat pump techniques and its heat management system - Google Patents

Electric vehicle based on heat pump techniques and its heat management system Download PDF

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Publication number
CN207955255U
CN207955255U CN201820136920.XU CN201820136920U CN207955255U CN 207955255 U CN207955255 U CN 207955255U CN 201820136920 U CN201820136920 U CN 201820136920U CN 207955255 U CN207955255 U CN 207955255U
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valve
interface
heat exchanger
heat
power battery
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楚金甫
刘向阳
程勋
常乐
汪世伟
王勇
吕建军
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Henan Senyuan Heavy Industry Co Ltd
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Henan Senyuan Heavy Industry Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The utility model is related to electric vehicles and its heat management system based on heat pump techniques, synthesis has environment inside car heat management, power battery heat management, and the recycling heat management of driving motor heat consumption, the cooling effect of environment inside car, driving motor and power battery is more preferable when making summer high temperature, winter compares more traditional electrical heating consuming little energy, improves electric vehicle winter course continuation mileage.And the parts that the utility model needs are less, the connection relation of each component is simple in system, requires the control of controller that relatively low, control efficiency is high, also, is more suitable for manually controlling in the case where not having controller control system.

Description

Electric vehicle based on heat pump techniques and its heat management system
Technical field
The utility model belongs to electric vehicle thermal management technology field, and in particular to electric vehicle based on heat pump techniques and Its heat management system.
Background technology
Electric vehicle relies on electrical energy drive vehicle, has the advantages that zero-emission, pollution-free, cost of use is low etc., is solution energy The direction of the main path and future automobile of source crisis and environmental pollution development.Electric vehicle generally uses PTC to heat at present Device heats, and such heating system efficiency is low, high energy consumption, seriously constrains the course continuation mileage of electric vehicle.
Mostly based on air-cooled and water cooling, summer environment is when the temperature is excessively high, air-cooled for traditional electric automobile power battery heat dissipation The radiating requirements that power battery cannot be fully met with water cooling result in power battery work efficiency drop.Winter environment temperature When relatively low, power battery output performance is deteriorated, and low temperature charging has the security risk of internal short-circuit.Electric vehicle is universal at present Power battery is heated using electrical heating, ensures the normal work of power battery, such mode of heating efficiency is low, energy consumption Height greatly constrains the course continuation mileage of electric vehicle.
Driving motor also will produce a large amount of heat when operating at full capacity, and driving motor heat management traditional at present can only be right Driving motor is cooled down, and but cannot driving motor be run the heat consumption generated is effectively utilized, and most electric vehicle Refrigeration, heating, the relatively isolated dispersion of heat management of driving motor and power battery, cannot unify the pipe for efficiently carrying out vehicle-mounted energy Reason.
In the prior art, the Chinese patent that notification number is CN203721847U proposes " a kind of to be based on electric automobile heat-pump The battery pack thermal management system of air-conditioning system " realizes battery pack high temperature and heat dissipation, low temperature is needed to need the demand heated, but heat It is single to manage system function, heat management only is carried out to battery pack, can not achieve the integrated thermal management of electric vehicle.Notification number is The Chinese patent of CN105216584B provides a kind of " electric vehicle heat recovery heat pump type integrated management of flashed cold-patch gas System ", the system have recycled the waste heat of electric vehicle and electrokinetic cell system, realize automatically controlling for flashed cold-patch gas, But the parts that the system needs are excessive, cause the connection relation of system excessively complicated, increase the complexity of controller, control effect Rate is relatively low.
Utility model content
The purpose of this utility model is to provide electric vehicle and its heat management system based on heat pump techniques, existing for solving There is the problem of technology can not carry out unified efficient electric vehicle heat management.
In order to solve the above technical problems, the utility model proposes a kind of electric vehicle heat management system based on heat pump techniques System, including following system schema:
System schema one, including heat pump air conditioner circuit, power battery heat exchange branch and driving motor heat exchange branch;Wherein, Heat pump air conditioner circuit is equipped with compressor (7), and compressor (7) connects the first interface (271) of four-way valve (27), four-way valve (27) Second interface (272) is separately connected vehicle indoor heat exchanger (10) and the 4th valve (24), and vehicle indoor heat exchanger (10) passes through second Valve (9) connects expansion valve (6), and the 4th interface (274) of four-way valve (27) connects the compressor by gas-liquid separator (4) (7) the third interface (273) of entrance, four-way valve (27) connects the expansion by car room external heat exchanger (2) and the first valve (3) Valve (6);Heat pump air conditioner circuit is equipped with First Heat Exchanger (11), and the first group interface of First Heat Exchanger (11) passes through the 4th valve (24) the branch both ends that vehicle indoor heat exchanger (10) and the second valve (9) are constituted are connected to;
Power battery heat exchange branch includes sequentially connected 7th valve (23), the first water tank (22), the first electronic water pump (21), heat exchange mechanisms of the power battery heat exchange branch for connecting power battery (12), the second of the First Heat Exchanger (11) Group interface and power battery heat exchange branch, the heat exchange mechanisms forming circuit for connect power battery (12);
Driving motor exchanges heat branch equipped with the second heat exchanger (14), third valve (13), the 8th valve (19), the second water tank (18), the second electronic water pump (17), wherein the second group interface of the second heat exchanger (14), the 8th valve (19), the second water tank (18), the branch that the second electronic water pump (17) is in turn connected to form with the heat exchange mechanisms of driving motor (15) for connecting to be formed back Road, the third interface (273) of the interface connection four-way valve (27) in the first group interface of the second heat exchanger (14), second changes Another interface in first group interface of hot device (14) connects the expansion valve (6) by third valve (13).
System schema two, on the basis of system schema one, the thermal management system of electric automobile further includes connection second First radiator of the second group interface of heat exchanger (14).
System schema three, on the basis of system schema two, the 8th valve (19) is triple valve, and the first radiator passes through the Eight valves (19) connect the second group interface of the second heat exchanger (14).
System schema four is equipped with the 6th on the basis of system schema three between first radiator and the 8th valve (19) Valve (26).
System schema five, on the basis of system schema one, the thermal management system of electric automobile further includes connection first Second radiator of the second group interface of heat exchanger (11).
System schema six, on the basis of system schema two, the of first radiator connection First Heat Exchanger (11) Two group interfaces.
System schema seven, eight, respectively on the basis of system schema five, six, the 7th valve (23) is triple valve, and first dissipates Hot device or the second radiator connect the second group interface of First Heat Exchanger (11) by the 7th valve (23).
System schema nine, ten, respectively on the basis of system schema seven, eight, the first radiator and the 7th valve (23) it Between be equipped with the 5th valve (25), alternatively, equipped with the 5th valve (25) between the second radiator and the 7th valve (23).
System schema 11,12,13,14,15,16, respectively in system schema one, two, three, four, five, six On the basis of, First Heat Exchanger (11) and the second heat exchanger (14) they are plate heat exchanger.
System schema 17 further includes filter (8) on the basis of system schema one, and filter (8) setting is being compressed Between machine (7) and four-way valve (27).
System schema 18 further includes the first control module (20), the first control module on the basis of system schema one (20) include the first temperature sensor for detecting power battery (12) temperature, and the first temperature sensor of connection the first control Device processed.
System schema 19 further includes the second control module (16), the second control mould on the basis of system schema 18 Block (16) includes the second temperature sensor for detecting driving motor (15) temperature, and connects the second of second temperature sensor Controller.
System schema 20, on the basis of system schema one, one in the first group interface of the second heat exchanger (14) Interface is also connected with outdoor heat exchanger (2), another interface in the first group interface of the second heat exchanger (14) is also connected with the first valve Door (3).
System schema 21, on the basis of system schema one, the inlet of compressor (7) is equipped with temperature sensing package (5).
In order to solve the above technical problems, the utility model also proposes a kind of electric vehicle, including following automobile scheme:
Automobile scheme one, including heat management system, the heat management system include:Heat pump air conditioner circuit, power battery heat exchange Branch and driving motor heat exchange branch;Wherein, heat pump air conditioner circuit is equipped with compressor (7), and compressor (7) connects four-way valve (27) First interface (271), the second interface (272) of four-way valve (27) is separately connected vehicle indoor heat exchanger (10) and the 4th valve (24), vehicle indoor heat exchanger (10) connects expansion valve (6) by the second valve (9), and the 4th interface (274) of four-way valve (27) is logical It crosses gas-liquid separator (4) and connects compressor (7) entrance, the third interface (273) of four-way valve (27) passes through vehicle outdoor heat exchange Device (2) and the first valve (3) connect the expansion valve (6);Heat pump air conditioner circuit is equipped with First Heat Exchanger (11), First Heat Exchanger (11) the first group interface is connected to the branch that vehicle indoor heat exchanger (10) and the second valve (9) are constituted by the 4th valve (24) Both ends;
Power battery heat exchange branch includes sequentially connected 7th valve (23), the first water tank (22), the first electronic water pump (21), heat exchange mechanisms of the power battery heat exchange branch for connecting power battery (12), the second of the First Heat Exchanger (11) Group interface and power battery heat exchange branch, the heat exchange mechanisms forming circuit for connect power battery (12);
Driving motor exchanges heat branch equipped with the second heat exchanger (14), third valve (13), the 8th valve (19), the second water tank (18), the second electronic water pump (17), wherein the second group interface of the second heat exchanger (14), the 8th valve (19), the second water tank (18), the branch that the second electronic water pump (17) is in turn connected to form with the heat exchange mechanisms of driving motor (15) for connecting to be formed back Road, the third interface (273) of the interface connection four-way valve (27) in the first group interface of the second heat exchanger (14), second changes Another interface in first group interface of hot device (14) connects the expansion valve (6) by third valve (13).
Automobile scheme two, on the basis of automobile scheme one, the heat management system further includes the second heat exchanger of connection (14) the first radiator of the second group interface.
Automobile scheme three, on the basis of automobile scheme two, the 8th valve (19) is triple valve, and the first radiator passes through the Eight valves (19) connect the second group interface of the second heat exchanger (14).
Automobile scheme four is equipped with the 6th on the basis of automobile scheme three between first radiator and the 8th valve (19) Valve (26).
Automobile scheme five, on the basis of automobile scheme one, the thermal management system of electric automobile further includes connection first Second radiator of the second group interface of heat exchanger (11).
Automobile scheme six, on the basis of automobile scheme two, the of first radiator connection First Heat Exchanger (11) Two group interfaces.
Automobile scheme seven, eight, respectively on the basis of automobile scheme five, six, the 7th valve (23) is triple valve, and first dissipates Hot device or the second radiator connect the second group interface of First Heat Exchanger (11) by the 7th valve (23).
Automobile scheme nine, ten, respectively on the basis of automobile scheme seven, eight, the first radiator and the 7th valve (23) it Between be equipped with the 5th valve (25), alternatively, equipped with the 5th valve (25) between the second radiator and the 7th valve (23).
Automobile scheme 11,12,13,14,15,16, respectively in automobile scheme one, two, three, four, five, six On the basis of, First Heat Exchanger (11) and the second heat exchanger (14) they are plate heat exchanger.
Automobile scheme 17 further includes filter (8) on the basis of automobile scheme one, and filter (8) setting is being compressed Between machine (7) and four-way valve (27).
Automobile scheme 18 further includes the first control module (20), the first control module on the basis of automobile scheme one (20) include the first temperature sensor for detecting power battery (12) temperature, and the first temperature sensor of connection the first control Device processed.
Automobile scheme 19 further includes the second control module (16), the second control mould on the basis of automobile scheme 18 Block (16) includes the second temperature sensor for detecting driving motor (15) temperature, and connects the second of second temperature sensor Controller.
Automobile scheme 20, on the basis of automobile scheme one, one in the first group interface of the second heat exchanger (14) Interface is also connected with outdoor heat exchanger (2), another interface in the first group interface of the second heat exchanger (14) is also connected with the first valve Door (3).
Automobile scheme 21, on the basis of automobile scheme one, the inlet of compressor (7) is equipped with temperature sensing package (5).
The utility model has the beneficial effects that:
The integrated thermal management technology based on heat pump techniques that the utility model proposes a kind of, synthesis have environment inside car heat pipe The recycling heat management of reason, power battery heat management and driving motor heat consumption.And the parts that the utility model needs are less, The connection relation of each component is simple in system, requires the control of controller that relatively low, control efficiency is high, also, is not having control It is more suitable for manually controlling in the case of device control system processed.
Further, it on recycling heat management of the utility model when driving motor generates heat consumption, can both be dissipated in conjunction with having The water-cooling system of hot device reduces driving motor fever, can also provide heat source to vehicle when vehicle needs air conditioning and heating, improve The service efficiency of vehicle pure electric vehicle energy.
Further, the utility model is combined when carrying out power battery heat management using heat pump techniques with radiator Water-cooling system, keep summer high temperature cooling effect more preferable, winter compare more traditional electrical heating consuming little energy, improve electronic vapour Vehicle winter course continuation mileage.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the electric vehicle integrated thermal management system for the water-cooling system being added without radiator;
Fig. 2 is the structural schematic diagram of the electric vehicle integrated thermal management system for the water-cooling system that radiator is added;
Fig. 3 is pure electric automobile environment inside car heat management system heating cycle schematic diagram;
Fig. 4 is power battery of pure electric automobile cooling cycle schematic diagram;
Fig. 5 is power battery of pure electric automobile heat cycles schematic diagram;
Fig. 6 is driving motor of pure electric automobile water circulating cooling schematic diagram;
Fig. 7 is that driving motor of pure electric automobile heat consumption utilizes schematic diagram;
Fig. 8 is the control module structural schematic diagram for controlling integrated thermal management system.
Specific implementation mode
Specific embodiment of the present utility model is further described below in conjunction with the accompanying drawings.
A kind of thermal management system of electric automobile as shown in Figure 1, including heat pump air conditioner circuit, power battery heat exchange branch and Driving motor exchange heat branch, and in particular to equipment include:Compressor 7, four-way valve 27, car room external heat exchanger 2, the first valve 3, expansion valve 6, the second valve 9, vehicle indoor heat exchanger 10, gas-liquid separator 4, temperature sensing package 5, the 4th valve 24, First Heat Exchanger 11, the first electronic water pump 21, the first water tank 22, the 7th valve 23, third valve 13, the second heat exchanger 14, the second electronic water pump 17, the second water tank 18, the 8th valve 19, filter 8.
Wherein, heat pump air conditioner circuit is equipped with compressor 7, and four-way valve 27 is mounted on compressor 7, and compressor 7 connects four-way The first interface 271 of valve 27, filter 8 are arranged between compressor 7 and four-way valve 27, and the second interface 272 of four-way valve 27 is divided Not Lian Jie vehicle indoor heat exchanger 10 and the 4th valve 24, vehicle indoor heat exchanger 10 pass through the second valve 9 connect expansion valve 6, four-way For 4th interface 274 of valve 27 by 4 connect compressor of gas-liquid separator, 7 entrance, the inlet of compressor 7 is equipped with temperature sensing package 5, and four The third interface 273 of port valve 27 connects the expansion valve 6 by car room external heat exchanger 2 and the first valve 3;Heat pump air conditioner circuit is set There is First Heat Exchanger 11, the first group interface 111,112 of First Heat Exchanger 11, which is connected to by the 4th valve 24 in car room, to exchange heat The branch both ends that device 10 and the second valve 9 are constituted.
Power battery heat exchange branch includes sequentially connected 7th valve 23, the first water tank 22, the first electronic water pump 21, is moved Heat exchange mechanisms of the power battery heat exchange branch for connecting power battery 12, the second group interface 113 of the First Heat Exchanger 11, 114 with power battery heat exchange branch, connect power battery 12 heat exchange mechanisms forming circuit.
The driving motor branch that exchanges heat is equipped with the second heat exchanger 14, third valve 13, the 8th valve 19, the second water tank 18, the Two electronic water pumps 17, wherein the 143,144, the 8th valve 19 of the second group interface, the second water tank 18, second of the second heat exchanger 14 The branch that electronic water pump 17 is in turn connected to form is for connecting forming circuit, the second heat exchanger with the heat exchange mechanisms of driving motor 15 The third interface 273 of an interface 141 connection four-way valve 27 in 14 the first group interface, first group of the second heat exchanger 14 connect Another interface 142 in mouthful connects expansion valve 6 by third valve 13.
Based on the connection structure of above-mentioned integrated thermal management system, compressor 7, four-way valve 27, car room external heat exchanger 2, first Valve 3, expansion valve 6, the second valve 9, vehicle indoor heat exchanger 10, gas-liquid separator 4 are linked successively into one by automobile pipeline Circulation path, for being freezed to environment inside car and being heated;Above-mentioned expansion valve 6 is two-way heating power expansion valve, passes through temperature sensing package 5 The aperture for experiencing the degree of superheat control expansion valve 6 of evaporator exit, both can be positive or reversely adjusts supply evaporator refrigeration Agent flux.
Above-mentioned first valve, the second valve, third valve, the 4th valve, the 5th valve and the 6th valve are preferably electromagnetism Valve, excellent the 7th valve, the 8th valve are triple valve.
For the cycle of above-mentioned environment inside car heat management as shown in figure 3, winter is less than 16 DEG C when vehicle indoor temperature, environment inside car is warm Management system starts, and system is in heating condition, and compressor 7 starts, and opens the first valve 3, the second valve 9, refrigerant flow direction As shown in solid arrow in Fig. 3, refrigerant is through 7 output end of compressor, filter 8, by 271 He of first interface of four-way valve 27 Second interface 272 changes flow direction, gets in and is changed outside heat exchanger 10, the second valve 9, expansion valve 6, the first valve 3, car room Another channel of hot device 2 and 27 third interface 273 of four-way valve and the 4th interface 274 composition, is again introduced into compressor 7, forms system The heating to vehicle indoor environment is completed in thermal cycle.
Summer is higher than 28 DEG C when vehicle indoor temperature, and environment inside car heat management system starts, and system is in cooling condition, compresses Machine 7 starts, and opens the first valve 3, the second valve 9, and refrigerant flows through 7 output end of compressor, filter 8, four-way valve 27 first The channel of interface 271 and the composition of third interface 273, car room external heat exchanger 2, the first valve 3, expansion valve 6, the second valve 9, car room The channel of interior heat exchanger 10,27 second interface 272 of four-way valve and the 4th interface 274 composition is again introduced into compressor 7, forms refrigeration Cycle is completed to greenhouse cooling in car room.
Power battery thermal management system is as shown in figure 4, including compressor 7, filter 8, four-way valve 27, car room external heat exchanger 2, the first valve 3, expansion valve 6, First Heat Exchanger 11, the 4th valve 24, gas-liquid separator 4, first the 20, first electricity of control module Sub- water pump 21, the first water tank 22, the 7th valve 23;The compressor 7, filter 8, four-way valve 27, car room external heat exchanger 2, One valve 3, expansion valve 6, First Heat Exchanger 11, the 4th valve 24 constitute air-conditioning system all the way successively;Power battery 12, first are changed Hot device 11, the 7th valve 23, the first water tank 22, the first electronic water pump 21 are linked successively to form a circulation path reality by pipeline Now power battery is cooled and heated.
When the first temperature sensor of the first control module 20 detects that 12 maximum temperature of power battery is more than 45 DEG C and small When 60 DEG C, the first controller of the first control module 20 controls the first valve 3, the 4th valve 24 is opened, First Heat Exchanger 11 It starts to work, air-conditioning system be in cooling condition, and refrigerant flows through 7 output end of compressor, filter 8, commutate four-way valve 27 the The channel of one interface 271 and the composition of third interface 273, car room external heat exchanger 2, the first valve 3, expansion valve 6, First Heat Exchanger 11, the channel of the 4th valve 24,27 second interface 272 of four-way valve and the 4th interface 274 composition is again introduced into compressor 7, is formed Refrigeration cycle, First Heat Exchanger 11 is as evaporator at this time;Fluid media (medium) is successively through power battery 12, First Heat Exchanger 11, Seven valves 23, the first water tank 22, the first electronic water pump 21 are exported 12 heat of power battery by First Heat Exchanger 11.
The utility model combines the water cooling system with radiator when carrying out power battery heat management using heat pump techniques System, as shown in figure 5, power battery 12, radiator 1, the 5th valve 25, the 7th valve 23, the first water tank 22, the first electronic water pump 21 are linked successively the cooling to form a cycle realization to power battery by pipeline.For example, when the of the first control module 20 When one temperature sensor detects that the maximum temperature of power battery 12 is more than 35 DEG C and is less than 45 DEG C, the control compression of the first controller Machine 7 is stopped, and the 5th valve 25 of control, radiator 1, the first electronic water pump 21 start, and fluid media (medium) is successively through power battery 12, radiator 1, the 5th valve 25, the 7th valve 23, the first water tank 22, the first electronic water pump 21, by radiator 1 by power The heat of battery 12 distributes;When detecting that the maximum temperature of power battery 12 is less than 35 DEG C, the control of the first controller dissipates Hot device 1, the first electronic water pump 21 are stopped, and make the heat natural cooling of power battery.
As shown in fig. 6, the first temperature sensor when the first control module 20 detects that 12 minimum temperature of power battery is small When 0 DEG C, the first controller control compressor 7, the first valve 3, the 4th valve 24 of acquisition the first temperature sensor of connection are opened It opens, air-conditioning system is in heating condition, and refrigerant flows through 7 output end of compressor, filter 8,27 first interface of four-way valve, 271 and The channel of the composition of second interface 272, the 4th valve 24, First Heat Exchanger 11, expansion valve 6, the first valve 3, car room external heat exchanger 2, the channel of 27 third interface 273 of four-way valve and the 4th interface 274 composition is again introduced into compressor 7, forms heating cycle, at this time First Heat Exchanger 11 is used as condenser;Fluid media (medium) is successively through power battery 12, First Heat Exchanger 11, the 7th valve 23, first Water tank 22, the first electronic water pump 21, by 11 heated fluid medium of First Heat Exchanger and then heated power battery 12;Heating process In, when the first control module detects that minimum temperature is more than 0 DEG C, close compressor 7, the first electronic water pump 21, power battery 12 start to charge up work, and the heat for generation of charging makes 12 temperature of power battery continue to increase, to make power battery 12 be in most In good operating temperature range.
Based on the connection structure of above-mentioned integrated thermal system, the motor heat management system of the utility model includes:Compressor 7, filter 8, four-way valve 27, the second heat exchanger 14, third valve 13, expansion valve 6, the second valve 9, vehicle indoor heat exchanger 10, 8th valve 23, the second water tank 18, the second electronic water pump 17, the second control module 16, radiator 1.
Specifically, as shown in fig. 7, compressor 7, filter 8, four-way valve 27, the second heat exchanger 14, third valve 13, swollen Swollen valve 6, the second valve 9, vehicle indoor heat exchanger 10 constitute air-conditioning system all the way successively.Driving motor 15, the second heat exchanger 14, Eight valves 23, the second water tank 18, the second electronic water pump 17 are linked successively to form a circulation path realization to 15 work of driving motor The heat consumption for making to generate is efficiently used.For example, the second temperature sensor when the second control module 16 detects driving motor When 15 maximum temperature is more than 30 DEG C and is less than 50 DEG C, the second controller of the second control module 16 controls the second electronic water pump 17 It opens, fluid media (medium) is carried out by driving motor 15, radiator 1, the 6th valve 26, the second water tank 18, the second electronic water pump 17 The water cooling of driving motor;When detecting that the temperature of driving motor is less than 30 DEG C, second controller controls the second electronic water pump and stops Only work.
As shown in figure 8, when vehicle indoor environment temperature is less than 16 DEG C, needs warm wind, and when the of the second control module 16 When two temperature sensors detect that the temperature of driving motor 15 is higher than environment temperature, the second of acquisition connection second temperature sensor Controller 29 controls compressor 7, the second valve 9, third valve 13, the second electronic water pump 17 and opens, and refrigerant flows through compressor 7 Channel, the vehicle indoor heat exchanger 10, second of output end, filter 6,27 first interface 271 of four-way valve and the composition of second interface 272 What valve 9, expansion valve 6, third valve 13, the second heat exchanger 14,27 third interface 273 of four-way valve and the 4th interface 274 formed Channel is again introduced into compressor 7, forms heating cycle, heats vehicle room air, the second heat exchanger 14 is used as evaporator at this time;Stream Body medium is successively through driving motor 15, the second heat exchanger 14, the 8th valve 19, the second water tank 18, the second electronic water pump 17, effectively The heat consumption that driving motor 15 is utilized improve the heating performance of air-conditioning system.
It is used as evaporator when the vehicle indoor heat exchanger of the utility model, First Heat Exchanger refrigeration, when heating is used as condenser; It is used as evaporator when the second heat exchanger heating of the utility model.
The utility model combines the water cooling system with radiator when carrying out power battery heat management using heat pump techniques System, keeps summer high temperature cooling effect more preferable, and winter compares more traditional electrical heating consuming little energy, and it is continuous to improve electric vehicle winter Navigate mileage.
In addition, motor heat management system and power battery thermal management system use the same radiator in the present embodiment, The integrated thermal management system for sharing the water-cooling system of a radiator is as shown in Figure 2.In order to ensure heat dissipation effect, motor heat management System and power battery thermal management system can also use different radiators to carry out independent radiating management, i.e. the second heat exchanger is adopted With the first radiator, First Heat Exchanger uses the second radiator.
The utility model low, high energy consumption for electric vehicle winter ptc heater efficiency in traditional technology, electric vehicle drive Operational efficiency is low at low ambient temperatures in high temperature and battery for dynamic motor and battery, and the heat consumption that driving motor generates when working cannot have The shortcomings that effect utilizes, and unified efficient electric vehicle integrated thermal management problem can not be carried out in the prior art, it is proposed that on Heat management system is stated, environment inside car heat management, power battery heat management and driving motor heat management, and zero needed are combined Part is less, and the connection relation of each component is simple in system, requires the control of controller that relatively low, control efficiency is high, also, not It is more suitable for manually controlling in the case of having controller control system.
The utility model also proposed a kind of automobile with heat management system, since the heat management system of automobile is above-mentioned The sufficiently clear of by the agency of is complete in embodiment, therefore the automobile with heat management system is no longer described in detail.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, for this field Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model, Any modification, equivalent replacement, improvement and so on should be included within the right of the utility model.

Claims (28)

1. a kind of thermal management system of electric automobile based on heat pump techniques, which is characterized in that including heat pump air conditioner circuit, power electric Pond heat exchange branch and driving motor heat exchange branch;Wherein, heat pump air conditioner circuit is equipped with compressor (7), and compressor (7) connects four-way The second interface (272) of the first interface (271) of valve (27), four-way valve (27) is separately connected vehicle indoor heat exchanger (10) and the 4th Valve (24), vehicle indoor heat exchanger (10) connect expansion valve (6), the 4th interface of four-way valve (27) by the second valve (9) (274) compressor (7) entrance is connected by gas-liquid separator (4), the third interface (273) of four-way valve (27) passes through car room External heat exchanger (2) and the first valve (3) connect the expansion valve (6);Heat pump air conditioner circuit be equipped with First Heat Exchanger (11), first First group interface of heat exchanger (11) is connected to vehicle indoor heat exchanger (10) by the 4th valve (24) and the second valve (9) is constituted Branch both ends;
Power battery heat exchange branch includes sequentially connected 7th valve (23), the first water tank (22), the first electronic water pump (21), Power battery heat exchange branch is used to connect the heat exchange mechanisms of power battery (12), the second group interface of the First Heat Exchanger (11) With power battery heat exchange branch, connect power battery (12) heat exchange mechanisms forming circuit;
Driving motor exchanges heat branch equipped with the second heat exchanger (14), third valve (13), the 8th valve (19), the second water tank (18), the second electronic water pump (17), wherein the second group interface of the second heat exchanger (14), the 8th valve (19), the second water tank (18), the branch that the second electronic water pump (17) is in turn connected to form with the heat exchange mechanisms of driving motor (15) for connecting to be formed back Road, the third interface (273) of the interface connection four-way valve (27) in the first group interface of the second heat exchanger (14), second changes Another interface in first group interface of hot device (14) connects the expansion valve (6) by third valve (13).
2. the thermal management system of electric automobile according to claim 1 based on heat pump techniques, which is characterized in that described electronic Automotive thermal tube reason system further includes the first radiator of the second group interface for connecting the second heat exchanger (14).
3. the thermal management system of electric automobile according to claim 2 based on heat pump techniques, which is characterized in that the 8th valve (19) it is triple valve, the second group interface that the first radiator passes through the 8th valve (19) the second heat exchanger of connection (14).
4. the thermal management system of electric automobile according to claim 3 based on heat pump techniques, which is characterized in that the first heat dissipation The 6th valve (26) is equipped between device and the 8th valve (19).
5. the thermal management system of electric automobile according to claim 1 based on heat pump techniques, which is characterized in that described electronic Automotive thermal tube reason system further includes the second radiator of the second group interface for connecting First Heat Exchanger (11).
6. the thermal management system of electric automobile according to claim 2 based on heat pump techniques, which is characterized in that described first Radiator connects the second group interface of First Heat Exchanger (11).
7. the thermal management system of electric automobile according to claim 5 or 6 based on heat pump techniques, which is characterized in that the 7th Valve (23) is that triple valve, the first radiator or the second radiator connect the of First Heat Exchanger (11) by the 7th valve (23) Two group interfaces.
8. the thermal management system of electric automobile according to claim 7 based on heat pump techniques, which is characterized in that the first heat dissipation The 5th valve (25) is equipped between device and the 7th valve (23), alternatively, equipped with the between the second radiator and the 7th valve (23) Five valves (25).
9. according to thermal management system of electric automobile of the claim 1-6 any one of them based on heat pump techniques, which is characterized in that First Heat Exchanger (11) and the second heat exchanger (14) are plate heat exchanger.
10. the thermal management system of electric automobile according to claim 1 based on heat pump techniques, which is characterized in that further include Filter (8), filter (8) are arranged between compressor (7) and four-way valve (27).
11. the thermal management system of electric automobile according to claim 1 based on heat pump techniques, which is characterized in that further include First control module (20), the first control module (20) include the first temperature sensing for detecting power battery (12) temperature Device, and connect the first controller of the first temperature sensor.
12. the thermal management system of electric automobile according to claim 11 based on heat pump techniques, which is characterized in that further include Second control module (16), the second control module (16) include being sensed for detecting the second temperature of driving motor (15) temperature Device, and connect the second controller of second temperature sensor.
13. the thermal management system of electric automobile according to claim 1 based on heat pump techniques, which is characterized in that second changes An interface in first group interface of hot device (14) is also connected with outdoor heat exchanger (2), and first group of the second heat exchanger (14) connects Another interface in mouthful is also connected with the first valve (3).
14. the thermal management system of electric automobile according to claim 1 based on heat pump techniques, which is characterized in that compressor (7) inlet is equipped with temperature sensing package (5).
15. a kind of electric vehicle, including heat management system, which is characterized in that the heat management system includes heat pump air conditioner circuit, moves Power battery heat exchange branch and driving motor heat exchange branch;Wherein, heat pump air conditioner circuit is equipped with compressor (7), compressor (7) connection The first interface (271) of four-way valve (27), the second interface (272) of four-way valve (27) be separately connected vehicle indoor heat exchanger (10) and 4th valve (24), vehicle indoor heat exchanger (10) connect expansion valve (6) by the second valve (9), and the 4th of four-way valve (27) connects Mouth (274) connects compressor (7) entrance by gas-liquid separator (4), and the third interface (273) of four-way valve (27) passes through vehicle Outdoor heat exchanger (2) and the first valve (3) connect the expansion valve (6);Heat pump air conditioner circuit is equipped with First Heat Exchanger (11), the First group interface of one heat exchanger (11) is connected to vehicle indoor heat exchanger (10) and the second valve (9) structure by the 4th valve (24) At branch both ends;
Power battery heat exchange branch includes sequentially connected 7th valve (23), the first water tank (22), the first electronic water pump (21), Power battery heat exchange branch is used to connect the heat exchange mechanisms of power battery (12), the second group interface of the First Heat Exchanger (11) With power battery heat exchange branch, connect power battery (12) heat exchange mechanisms forming circuit;
Driving motor exchanges heat branch equipped with the second heat exchanger (14), third valve (13), the 8th valve (19), the second water tank (18), the second electronic water pump (17), wherein the second group interface of the second heat exchanger (14), the 8th valve (19), the second water tank (18), the branch that the second electronic water pump (17) is in turn connected to form with the heat exchange mechanisms of driving motor (15) for connecting to be formed back Road, the third interface (273) of the interface connection four-way valve (27) in the first group interface of the second heat exchanger (14), second changes Another interface in first group interface of hot device (14) connects the expansion valve (6) by third valve (13).
16. electric vehicle according to claim 15, which is characterized in that the heat management system further includes that connection second is changed First radiator of the second group interface of hot device (14).
17. electric vehicle according to claim 16, which is characterized in that the 8th valve (19) is triple valve, the first heat dissipation Device connects the second group interface of the second heat exchanger (14) by the 8th valve (19).
18. electric vehicle according to claim 17, which is characterized in that set between the first radiator and the 8th valve (19) There is the 6th valve (26).
19. electric vehicle according to claim 15, which is characterized in that the thermal management system of electric automobile further includes connecting Connect the second radiator of the second group interface of First Heat Exchanger (11).
20. electric vehicle according to claim 16, which is characterized in that first radiator connects First Heat Exchanger (11) the second group interface.
21. the electric vehicle according to claim 19 or 20, which is characterized in that the 7th valve (23) be triple valve, first Radiator or the second radiator connect the second group interface of First Heat Exchanger (11) by the 7th valve (23).
22. electric vehicle according to claim 21, which is characterized in that set between the first radiator and the 7th valve (23) There is the 5th valve (25), alternatively, being equipped with the 5th valve (25) between the second radiator and the 7th valve (23).
23. according to claim 15-20 any one of them electric vehicles, which is characterized in that First Heat Exchanger (11) and second Heat exchanger (14) is plate heat exchanger.
24. electric vehicle according to claim 15, which is characterized in that further include filter (8), filter (8) setting Between compressor (7) and four-way valve (27).
25. electric vehicle according to claim 15, which is characterized in that further include the first control module (20), the first control Molding block (20) includes the first temperature sensor for detecting power battery (12) temperature, and the first temperature sensor of connection First controller.
26. electric vehicle according to claim 25, which is characterized in that further include the second control module (16), the second control Molding block (16) includes the second temperature sensor for detecting driving motor (15) temperature, and connection second temperature sensor Second controller.
27. electric vehicle according to claim 15, which is characterized in that in the first group interface of the second heat exchanger (14) One interface is also connected with outdoor heat exchanger (2), another interface in the first group interface of the second heat exchanger (14) is also connected with One valve (3).
28. electric vehicle according to claim 15, which is characterized in that the inlet of compressor (7) is equipped with temperature sensing package (5)。
CN201820136920.XU 2018-01-26 2018-01-26 Electric vehicle based on heat pump techniques and its heat management system Active CN207955255U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109353183A (en) * 2018-10-19 2019-02-19 莱顿汽车部件(苏州)有限公司 A kind of integrated heat management system of new-energy automobile
CN109624646A (en) * 2018-12-11 2019-04-16 珠海格力电器股份有限公司 A kind of thermal management system of whole and automobile
CN109808448A (en) * 2019-02-18 2019-05-28 珠海格力电器股份有限公司 A kind of air-conditioning system and its control method and automobile

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109353183A (en) * 2018-10-19 2019-02-19 莱顿汽车部件(苏州)有限公司 A kind of integrated heat management system of new-energy automobile
CN109624646A (en) * 2018-12-11 2019-04-16 珠海格力电器股份有限公司 A kind of thermal management system of whole and automobile
CN109808448A (en) * 2019-02-18 2019-05-28 珠海格力电器股份有限公司 A kind of air-conditioning system and its control method and automobile
CN109808448B (en) * 2019-02-18 2020-09-15 珠海格力电器股份有限公司 Air conditioning system, control method thereof and automobile

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