CN102331047B - Gas heat recycling heat pump air-conditioning system for electric automobile - Google Patents

Gas heat recycling heat pump air-conditioning system for electric automobile Download PDF

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Publication number
CN102331047B
CN102331047B CN2011102070607A CN201110207060A CN102331047B CN 102331047 B CN102331047 B CN 102331047B CN 2011102070607 A CN2011102070607 A CN 2011102070607A CN 201110207060 A CN201110207060 A CN 201110207060A CN 102331047 B CN102331047 B CN 102331047B
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air
gas
compressor
car
cooling
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CN102331047A (en
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周光辉
董秀洁
秦贵棉
李继军
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HENAN BEIDI NEW ENERGY REFRIGERATION INDUSTRY CO., LTD.
Zhongyuan University of Technology
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JIYUAN BEIDI UNDERGROUND ENERGY CENTRAL AIR CONDITIONING EQUIPMENT CO Ltd
Zhongyuan University of Technology
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/13Economisers
    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention provides a gas heat recycling heat pump air-conditioning system for an electric automobile. The system comprises an automobile totally enclosed variable-frequency air-conditioning compressor, an external air heat exchanger, an internal air heat exchanger, a liquid storing drier, a gas-liquid separator, a low-pressure throttling valve, a compressor cooling synergistic air mixing system, a driving motor gas heat recycling system, a system mode switching device and the like, wherein the automobile totally enclosed variable-frequency air-conditioning compressor is driven by using a direct-current motor; and the driving motor gas heat recycling system consists of a gas-gas bilateral cooling motor waste heat cooling device, a waste heat recycling control device and a connecting air duct. In the gas heat recycling heat pump air-conditioning system, five working modes, i.e., refrigerating in summer, ordinary heating in summer, ultralow-temperature heating, vehicle window defrosting/defogging and external low-temperature heat source heat exchanger surface defrosting can be realized for the electric automobile, and the system can be used for normally heating circularly at outdoor ultralow environmental temperature through the compressor cooling synergistic air mixing system and the driving motor gas heat recycling system.

Description

A kind of gas recovery type heat electric automobile heat-pump air-conditioning system
Technical field
The present invention relates to a kind of electric automobile air-conditioning system, relate to specifically a kind of gas recovery type heat electric automobile heat-pump air-conditioning system.
Background technology
Development along with electric vehicle engineering, electric automobile air conditioner is also increasing to the restriction of its development, its reason is: owing to having lacked explosive motor, winter heating is subject to very large restriction, particularly when outside air temperature was very low, the electric automobile air-conditioning system of exploitation can't work.This has had a strong impact on electric automobile popularizing at northern area.
Summary of the invention
Purpose of the present invention is just in order to provide a kind of gas recovery type heat electric automobile heat-pump air-conditioning system, the problem that can't normally heat to solve present common electric automotive air-conditioning system when outdoor temperature is too low.
Purpose of the present invention can realize by following technique measures:
Gas recovery type heat electric automobile heat-pump air-conditioning system of the present invention comprises air heat exchanger in the automobile-used totally-enclosed frequency conversion type air conditioning compressor that driven by direct current generator, car outer air heat exchanger, car, liquid storage dryer, gas-liquid separator, low pressure choke valve, the mixed gas of cooling compressor synergy system, drive motors gas heat recovery system, system model switching device shifter etc.; Wherein said automobile-used totally-enclosed frequency conversion type air conditioning compressor is made of compressor housing, motor, static vortex, moving vortex and the mixed gas of cooling synergy system.the mixed gas of described cooling compressor synergy system is comprised of the built-in cooling synergy of compressor air mixing machine structure and the outside mixed gas disposal of compressor and control device, the built-in cooling synergy of described compressor air mixing machine structure is by the built-in gas mixed hole of compressor, the built-in gas mixed hole interface channel of compressor and be connected with the built-in gas mixed hole interface channel of the compressor other end and the external snap joint that is fixed on compressor housing forms, and is divided into low pressure air mixing machine structure, medium-pressure mechanism, three kinds of forms of high pressure air mixing machine structure, the built-in gas mixed hole of compressor of described low pressure air mixing machine structure is opened in housing part corresponding to compressor air suction chamber or is opened in the relevant position of compressor static vortex and the second compression chamber corresponding part by the built-in gas mixed hole of compressor that the fast three-way joint is connected with compressor suction duct, the built-in gas mixed hole of compressor of described medium-pressure mechanism is opened in the relevant position of compressor static vortex and the first compression chamber corresponding part, described high pressure air mixing machine structure, the outside mixed gas disposal of described compressor and control device are comprised of mixed gas choke valve, mixed gas heat exchanger, mixed gas check-valves, the mixed gas interface external connecting pipe of compressor, described mixed gas choke valve is any one reducing pressure by regulating flow device in electric expansion valve, heating power expansion valve, capillary or restriction sleeve, described mixed gas heat exchanger is that reducing bushing formula, interval are board-like, any one in case tubular type or shell and tube exchanger, described mixed gas check-valves can be realized the maximization of mixed tolerance, strengthens mixed gas effect, described system model switching device shifter by air-conditioning duct control valve in air-conditioning duct control valve to the three cars in function control valve, mixed gas control valve, mixed gas heat exchanger bypass valve, defrost bypass valve, the first check valve to the four check valves, the first car form (feasible system to the refrigeration in electric automobile, commonly heat, the mixed gas of low temperature heats, vehicle window defrosting/demist and five kinds of mode of operations of the outer low-temperature heat source heat exchanger surface defrosting of car switch), described drive motors gas heat recovery system comprises gas-gas double-sided cooled type motor coolant jacket, is arranged on gas-interior electric machine built-in air cooling mechanism, the electric machine external cooling blower of gas double-sided cooled type motor coolant jacket, described automobile-used totally-enclosed frequency conversion type air conditioning compressor outlet is connected with air heat exchanger, gas-liquid separator the corresponding interface in car outer air heat exchanger, car respectively by function control valve and corresponding connecting line, the automobile-used totally-enclosed frequency conversion type air conditioning compressor air suction mouth of described gas-liquid separator outlet access, described another interface of car outer air heat exchanger connects the first check valve outlet and the second check valve entrance, the second check valve outlet connects liquid storage dryer and the outlet of the 4th check valve, liquid storage dryer outlet respectively with the entrance of mixed gas control valve, the entrance of mixed gas heat exchanger bypass valve and the first entrance connection that connects mixed gas heat exchanger, mixed gas heat exchanger bypass valve outlet port and the first outlet of mixed gas heat exchanger connect low pressure choke valve entrance and defrost bypass valve entrance, the outlet of low pressure choke valve connects the first check valve entrance and the 3rd check valve entrance, the defrost bypass valve outlet connects the first check valve entrance and the 3rd check valve entrance, the 3rd check valve outlet connects two thermal source heat-exchanger rig entrances and the 4th check valve entrance in car, described mixed gas control valve outlet connects mixed moral stream valve inlet, and mixed moral stream valve outlet port connects mixed gas heat exchanger the second entrance, and mixed gas heat exchanger the second outlet connects mixed gas check-valves entrance, and mixed gas check-valves outlet connects the mixed gas port of automobile-used totally-enclosed frequency conversion type air conditioning compressor, air-conditioning duct control valve in the second car that be provided for realizing in car in the car of air heat exchanger inlet side in air-conditioning duct in car, the car external air inlet switches mutually sets gradually for air-conditioning duct control valve in the 3rd car of realizing entering after air is through air heat exchanger in car electric motor cooling duct in car, is used for realizing air-conditioning duct control valve in the first car that defrosting/demist air outlet and Che Nei air outlet switch mutually in air-conditioning duct in the car of air heat exchanger air side.
Described drive motors gas heat recovery system comprises by gas-gas double-sided cooled type motor coolant jacket, is arranged on electric machine built-in air cooling mechanism, electric machine external cooling blower in gas-gas double-sided cooled type motor coolant jacket; Described gas-gas double-sided cooled type motor coolant jacket is arranged on the middle part in the cooling connection of motor air channel, before, during and after the cooling connection of described motor air channel is divided into three sections, leading portion be provided with the import of car outer air, electric motor cooling duct import with interface that gas-gas double-sided cooled type motor coolant jacket air inlet is connected, be provided with gas-gas double-sided cooled type motor coolant jacket in the cooling connection of the motor in stage casing air channel, back segment be provided with car outer air outlet, electric motor cooling duct outlet with interface that gas-gas double-sided cooled type motor coolant jacket air outlet is connected; Described electric machine external cooling blower is arranged in the cooling connection of the motor air channel of gas-gas double-sided cooled type motor coolant jacket one side, be provided for the first waste heat recovery control device of realizing that car outer air, the import of motor cooling air are switched mutually in the car outer air import in the cooling connection of leading portion motor air channel, electric motor cooling duct import department, be provided for the described second electric waste heat recovery control device of realizing that car outer air, motor cooling air outlet switch mutually in the car outer air outlet in the cooling connection of back segment motor air channel, electric motor cooling duct exit; First, second waste heat recovery control device is used in conjunction with the switching of the waste heat recovery pattern that can realize, cooling pattern.
The air cooling of electric machine built-in described in the present invention mechanism is by forming as coolant jacket inner casing, the coolant jacket shell of direct current generator housing and several air-duct clapboards that are connected between inside and outside coolant jacket; Be provided with the some axial direct ribs that consist of cooling air channel in coolant jacket inner casing inboard, described direct current generator is arranged in the ring cavity that is made of some axial direct rib inner faces, at the direct current generator axle head, built-in air-cooling fan is installed.
The cooling blower of electric machine external described in the present invention is forced structure, is arranged in the cooling connection of the motor air channel of gas-gas double-sided cooled type motor coolant jacket inlet side; Described electric machine external cooling blower is the suction-type structure, is arranged in the cooling connection of the motor air channel of gas-gas double-sided cooled type motor coolant jacket air side.
The automobile-used totally-enclosed frequency conversion type air conditioning compressor that is driven by direct current generator described in the present invention is any one in piston type, vortex or triangle rotor type compressor, and direct current generator and automobile-used totally-enclosed frequency conversion type air conditioning compressor are enclosed in same housing.
The waste heat that motor gas heat recovery system purpose described in the present invention produces when being the work of recoverable driving motor for electric automobile is used for carrying out auxiliary heat supplying and backheat utilization in car.Its principle is: by being contained in gas on driving motor for electric automobile-gas double-sided cooled type motor coolant jacket, and the waste heat that during collection work, driving motor for electric automobile produces, and carry out cooling to it.When operation waste heat recovery pattern: the first waste heat recovery control valve is closed motor cooling air channel air intlet outside car, open the electric motor cooling duct import, enter electric motor cooling duct after air heat exchanger in air process car in car, through absorbing the motor waste heat after gas-gas double-sided cooled type motor coolant jacket, the second waste heat recovery control valve is closed the outer motor cooling air channel air outlet slit of car, open electric motor cooling duct outlet, from waste heat recovery ducting outlet air channel into the car.When operation defrosting/demist pattern, improve through the air themperature after air cooling heat exchanger in car the comfort level when increasing operation defrosting/demist pattern in car; When the mixed gas of operation heating mode and low temperature heats, to carrying out auxiliary heat supplying in car, improve the operating efficiency of heat pump.When operation cooling pattern: the first waste heat recovery control valve is opened motor cooling air channel air intlet outside car, the import of disable motor cooling air channel, and the second recuperation of heat control valve is opened the outer motor cooling air channel air outlet slit of car, the outlet of disable motor cooling air channel.Rely on the car outer air to carry out cooling to the motor waste heat.
Beneficial effect of the present invention is as follows:
A kind of gas recovery type heat electric automobile heat-pump air-conditioning system provided by the invention, by the mixed gas system of the inner cooling synergy that arranges of compressor and drive motors gas heat recovery system, the delivery temperature of compressor in the time of can significantly reducing the heat pump air conditioner cold operation, raising system reliability of operation, can greatly improve simultaneously heat capacity and the heating efficiency of this air-conditioning system, the power consumption when reducing the electric automobile air conditioner Winter heat supply.Through the data obtained is studied in preliminary experiment of the present invention, after a kind of water heat recovery type electromobile heat pump air conditioning system provided by the invention adopts the mixed gas system of cooling synergy and automobile motor hydro-thermal recovery system, at the ultralow temperature of outdoor temperature-10 ℃ under thermal condition, the delivery temperature of compressor is reduced to below 70 ℃, the coefficient of heat supply of air-conditioning system is up to 2.4 left and right, obvious two key technology difficult problems that need to be resolved hurrily such as not enough of the excessive discharge temperature of compressor, heating capacity in the time of can solving preferably the operation of pump type heat electric automobile air conditioner worst cold case.The present invention is to accelerating the universal significant with application of electric automobile, for the northerly development of electric automobile provides the air-conditioning technical support.
Description of drawings
Fig. 1 is structural principle of the present invention.
Fig. 2 is the mixed gas schematic diagram of the present invention.
Fig. 3 is mixed a kind of structure chart of gas port in gas mixing device of the present invention.
Fig. 4 is mixed gas port the second structure chart in gas mixing device of the present invention.
Fig. 5 is mixed the third structure chart of gas port in gas mixing device of the present invention.
Fig. 6 is mixed the 4th kind of structure chart of gas port in gas mixing device of the present invention.
Fig. 7 is electric machine built-in air cooling mechanism structure chart in the present invention.
Fig. 8 is the side view of Fig. 7.
Fig. 9---Figure 13 is respectively each mode of operation flow chart of the present invention.
in figure: the 1st, automobile-used totally-enclosed frequency conversion type air conditioning compressor, 2-1 is the function control valve, 2-2 to 2-5 is check valve, 2-6 is mixed gas control valve, 2-7 is mixed gas heat exchanger bypass valve, 2-8 is defrost bypass valve, 2-9 to 2-11 is air-conditioning duct control valve in car, the 3rd, car outer air heat exchanger, the 4th, liquid storage dryer, 5-1 is mixed gas choke valve, 5-2 is mixed gas heat exchanger, 5-3 is mixed gas check-valves, the 6th, the low pressure choke valve, the 7th, air heat exchanger in car, the 8th, gas-liquid separator, 9-1 is gas-gas double-sided cooled type motor coolant jacket, 9-2 is the electric machine external cooling blower, 10-1 and 10-2 are the waste heat recovery control device, the 11st, the coolant jacket inner casing, the 12nd, the coolant jacket shell, the 13rd, air-duct clapboard, the 14th, the axial direct rib, the 15th, built-in air-cooling fan, the 16th, the built-in gas mixed hole of compressor, the 17th, the built-in gas mixed hole interface channel of compressor, the 18th, be connected with the built-in gas mixed hole interface channel of the compressor other end and be fixed on external snap joint on compressor housing, the 19th, compressor housing, the 20th, motor, the 21st, the compressor static vortex, the 22nd, compress motor-driven vortex, the 23rd, compressor air suction snap joint, the 24th, compressor air-discharging snap joint.
The specific embodiment
The present invention once is described further in connection with embodiment (accompanying drawing), but does not limit the present invention.
as shown in Figure 1, gas recovery type heat electric automobile heat-pump air-conditioning system of the present invention comprises air heat exchanger 7 in the automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 that driven by direct current generator, car outer air heat exchanger 3, car, liquid storage dryer 4, gas-liquid separator 8, low pressure choke valve 6, the mixed gas of cooling compressor synergy system, drive motors gas heat recovery system, system model switching device shifter, the mixed gas of wherein said cooling compressor synergy system is comprised of the built-in cooling synergy of compressor air mixing machine structure and the outside mixed gas disposal of compressor and control device, the built-in cooling synergy of described compressor air mixing machine structure is by the built-in gas mixed hole 16 of compressor, the built-in gas mixed hole interface channel 17 of compressor and be connected with the built-in gas mixed hole interface channel of the compressor other end and the external snap joint 18 that is fixed on compressor housing forms, and is divided into low pressure air mixing machine structure, medium-pressure mechanism, three kinds of forms of high pressure air mixing machine structure, the built-in gas mixed hole 16 of the compressor of described low pressure air mixing machine structure is opened in housing part corresponding to compressor air suction chamber or is opened in the relevant position of compressor static vortex 21 and the second compression chamber corresponding part by the built-in gas mixed hole 16 of compressor that the fast three-way joint is connected with compressor suction duct, the built-in gas mixed hole 16 of compressor of described medium-pressure mechanism is opened in the relevant position of compressor static vortex 21 and the first compression chamber corresponding part, described high pressure air mixing machine structure, the outside mixed gas disposal of described compressor and control device are comprised of mixed gas choke valve 5-1, mixed gas heat exchanger 5-2, mixed gas check-valves 5-3, the mixed gas interface external connecting pipe of compressor, described system model switching device shifter is comprised of air-conditioning duct control valve 2-11 in air-conditioning duct control valve 2-9 to the three cars in function control valve 2-1, mixed gas control valve 2-6, mixed gas heat exchanger bypass valve 2-7, defrost bypass valve 2-8, the first check valve 2-2 to the four check valve 2-5, the first car, described automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 outlet is connected with air heat exchanger 7, gas-liquid separator 8 the corresponding interface in car outer air heat exchanger 3, car respectively by function control valve 2-1 and corresponding connecting line, described gas-liquid separator 8 automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 air entries of outlet access, described car outer air heat exchanger 3 another interfaces connect the first check valve 2-2 outlet and the second check valve 2-3 entrance, the second check valve 2-3 outlet connects liquid storage dryer 4 and the 4th check valve 2-5 outlet, liquid storage dryer 4 outlet respectively with the entrance of mixed gas control valve 2-6, the entrance of mixed gas heat exchanger bypass valve 2-7 and the first entrance connection that meets mixed gas heat exchanger 5-2, mixed gas heat exchanger bypass valve 2-7 exports and mixes gas heat exchanger 5-2 the first outlet and connects low pressure choke valve 6 entrances and defrost bypass valve 2-8 entrance, 6 outlets of low pressure choke valve connect the first check valve 2-2 entrance and the 3rd check valve 2-4 entrance, defrost bypass valve 2-8 outlet connects the first check valve 2-2 entrance and the 3rd check valve 2-4 entrance, the 3rd check valve 2-4 outlet connects two thermal source heat-exchanger rig 7 entrances and the 4th check valve 2-5 entrance in car, described mixed gas control valve 2-6 outlet connects mixed gas choke valve 5-1 entrance, mixed gas choke valve 5-1 outlet connects mixed gas heat exchanger 5-2 the second entrance, mixed gas heat exchanger 5-2 the second outlet connects mixed gas check-valves 5-3 entrance, and mixed gas check-valves 5-3 outlet connects the mixed gas port of automobile-used totally-enclosed frequency conversion type air conditioning compressor, air-conditioning duct control valve 2-10 in the second car that be provided for realizing in car in air-conditioning duct in the car of air heat exchanger 7 inlet sides in car, the car external air inlet switches mutually sets gradually for air-conditioning duct control valve 2-11 in the 3rd car of realizing entering after air is through air heat exchanger 7 in car electric motor cooling duct in car, is used for realizing air-conditioning duct control valve 2-9 in mutual switching first car of defrosting/demist air outlet and Che Nei air outlet in air-conditioning duct in the car of air heat exchanger 7 air sides, described drive motors gas heat recovery system comprises by gas-gas double-sided cooled type motor coolant jacket 9-1, is arranged on the electric machine built-in air cooling 9-3 of mechanism, electric machine external cooling blower 9-2 in gas-gas double-sided cooled type motor coolant jacket 9-1, described gas-gas double-sided cooled type motor coolant jacket 9-1 is arranged on the middle part in the cooling connection of motor air channel, before the cooling connection of described motor air channel is divided into, in, rear three sections, leading portion is provided with the import of car outer air, the electric motor cooling duct import with interface that gas-gas double-sided cooled type motor coolant jacket 9-1 air inlet is connected, described gas-gas double-sided cooled type motor coolant jacket 9-1 is arranged on the stage casing in the cooling connection of motor air channel, back segment is provided with the outlet of car outer air, electric motor cooling duct outlet with interface that gas-gas double-sided cooled type motor coolant jacket 9-1 air outlet is connected, described electric machine external cooling blower 9-2 is arranged in the cooling connection of the motor air channel of gas-gas double-sided cooled type motor coolant jacket 9-1 one side, be provided for the first waste heat recovery control device 10-1 of realizing that car outer air, the import of motor cooling air are switched mutually in the car outer air import in the cooling connection of leading portion motor air channel, electric motor cooling duct import department, be provided for the described second electric waste heat recovery control device 10-2 that realizes that car outer air, motor cooling air outlet switch mutually in the car outer air outlet in the cooling connection of back segment motor air channel, electric motor cooling duct exit.
Electric machine external cooling blower 9-2 of the present invention is forced structure, is arranged in the cooling connection of the motor air channel of gas-gas double-sided cooled type motor coolant jacket 9-1 inlet side; Described electric machine external cooling blower 9-2 also can be the suction-type structure, is arranged in the cooling connection of the motor air channel of gas-gas double-sided cooled type motor coolant jacket 9-1 air side.
The described automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 that is driven by direct current generator is any one in piston type, vortex or triangle rotor type compressor, and direct current generator and automobile-used totally-enclosed frequency conversion type air conditioning compressor are enclosed in same housing.
As shown in Figure 2, mixed gas endless form of the present invention is as follows: refrigerant liquid is divided into two-way after condenser flows out, the one tunnel is major cycle, through the heat exchange of overmulling gas heat exchanger, enters evaporimeter after the low pressure choke valve, is sucked by the compressor air entry at last; Another road is mixed gas circulation, enters mixed gas heat exchanger heat exchange after overmulling moral stream valve, becomes gaseous state after cooling major cycle cold-producing medium, enters compressor by the mixed gas interface of compressor at last.Its principle is: pass into the refrigerant gas of a certain amount of a certain intermediate pressure to compressor centre position or suction location by mixed air circuit, with the delivery temperature of compressor from T e' be reduced to T eIncrease the capacity of compressor, thereby improved total heating capacity of heat pump cycle; Simultaneously through the high pressure refrigerant liquid of overmulling gas heat exchanger main road by T fBe cooled to T g, make the heat that has increased from outdoor absorption, improved the efficient of heat pump.
As Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, automobile-used totally-enclosed frequency conversion type air conditioning compressor described in the present invention is made of compressor housing 19, motor 20, static vortex 21, moving vortex 22 and the mixed gas of cooling synergy system.Compressor housing 19 is provided with compressor air suction snap joint 23 and compressor air-discharging snap joint 24.The mixed gas of cooling compressor synergy system is comprised of the built-in cooling synergy of compressor air mixing machine structure and the outside mixed gas disposal of compressor and control device; The built-in cooling synergy of described compressor air mixing machine structure is by the built-in gas mixed hole 16 of compressor, the built-in gas mixed hole interface channel 17 of compressor and be connected with the built-in gas mixed hole interface channel of the compressor other end and the external snap joint 18 that is fixed on compressor housing forms, and is divided into low pressure air mixing machine structure, medium-pressure mechanism, three kinds of forms of high pressure air mixing machine structure; Described low pressure is mixed gas (as Fig. 3,4), and heat pump fluid enters the compressor air suction chamber to be mixed with superheated steam.The compressor gas mixed hole can be opened on compressor suction duct or be connected with compressor suction duct by the fast three-way joint, make low pressure mix gas elder generation and compressor air suction mixes after more compressed machine air entry enter the compressor air suction chamber.Described medium-pressure (as Fig. 5), heat pump fluid enter the intermediate pressure cavity of compressor sound vortex formation to be mixed with the superheated steam that is compressed to intermediate pressure.The built-in gas mixed hole 16 of compressor is opened in the relevant position of compressor static vortex 21 and the first compression chamber corresponding part and is connected with external snap joint 18 on being fixed on the compressor air-discharging cavity shell by the built-in gas mixed hole interface channel 17 of compressor.Described high pressure mixes gas (as Fig. 6), and mix with the superheated steam that is compressed to high pressure in heat pump fluid enters that compressor sound vortex forms high pressure chamber.The built-in gas mixed hole 16 of compressor is opened in the relevant position of compressor static vortex 21 and the second compression chamber corresponding part and is connected with external snap joint 18 on being fixed on the compressor air-discharging cavity shell by the built-in gas mixed hole interface channel 17 of compressor.The outside mixed gas disposal of described compressor and control device are comprised of mixed gas choke valve 5-1, mixed gas heat exchanger 5-2, mixed gas check-valves 5-3, the mixed gas interface external connecting pipe of compressor;
Mixed gas choke valve 5-1 described in the present invention is any one reducing pressure by regulating flow device in electric expansion valve, heating power expansion valve, capillary or restriction sleeve; Described mixed gas heat exchanger 5-2 is that reducing bushing formula, interval are board-like, any one in case tubular type or shell and tube exchanger.
As shown in Fig. 7,8, the described electric machine built-in air cooling 9-3 of mechanism is by forming as coolant jacket inner casing 11, the coolant jacket shell 12 of direct current generator housing and several air-duct clapboards 13 that are connected between inside and outside coolant jacket; Be provided with the some axial direct ribs 14 that consist of cooling air channel in coolant jacket inner casing 11 inboards, described direct current generator is arranged in the ring cavity that is made of some axial direct rib 14 inner faces, at the direct current generator axle head, built-in air-cooling fan 15 is installed.
Be illustrated in figure 9 as refrigeration work model process figure, by function control valve 2-1, automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 outlet be communicated with car outer air heat exchanger 3 interfaces, gas-liquid separator 8 entrances are communicated with air heat exchanger 7 another interfaces in car; Mixed gas control valve 2-6 closes; Mixed gas heat exchanger bypass valve 2-7 opens; Defrost bypass valve 2-8 closes; In car, air-conditioning duct control valve 2-11 opens; Waste heat recovery control valve 10-1 opens the outer motor cooling air channel air intlet of car, the import of disable motor cooling air channel; Waste heat recovery control valve 10-2 opens the outer motor cooling air channel air outlet slit of car, the outlet of disable motor cooling air channel.Cold-producing medium is discharged through automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 exhaust outlet, through after air heat exchanger 7, gas-liquid separator 8 in car outer air heat exchanger 3, check valve 2-3, liquid storage dryer 4, mixed gas heat exchanger bypass valve 2-7, low pressure choke valve 6, check valve 2-4, car, sucked from air entry by automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 successively.Rely on the car outer air to carry out cooling to the motor waste heat.
For heating the mode of operation flow chart, by function control valve 2-1, automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 outlet is communicated with air heat exchanger 7 interfaces in car as shown in figure 10, gas-liquid separator 8 entrances are communicated with another interface of car outer air heat exchanger; Mixed gas control valve 2-6 closes; Mixed gas heat exchanger bypass valve 2-7 opens; Defrost bypass valve 2-8 closes; In car, air-conditioning duct control valve 2-11 closes; Waste heat recovery control valve 10-1 closes the outer motor cooling air channel air intlet of car, opens the electric motor cooling duct import; Waste heat recovery control valve 10-2 closes the outer motor cooling air channel air outlet slit of car, opens the electric motor cooling duct outlet.Cold-producing medium is discharged through automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 exhaust outlet, through after air heat exchanger 7, check valve 2-5, liquid storage dryer 4, mixed gas heat exchanger bypass valve 2-7, low pressure choke valve 6, check valve 2-2, car outer air heat exchanger 3, gas-liquid separator 8 in car, sucked from air entry by automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 successively.Enter electric motor cooling duct after air heat exchanger 7 in air process car in car, through absorbing the motor waste heat after gas-gas double-sided cooled type motor coolant jacket 9-1, to carrying out heat supply in car.
For heating mixed gas mode of operation flow chart, by function control valve 2-1, automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 outlet is communicated with air heat exchanger 7 interfaces in car as shown in figure 11, gas-liquid separator 8 entrances are communicated with another interface of car outer air heat exchanger; Mixed gas control valve 2-6 opens; Mixed gas heat exchanger bypass valve 2-7 closes; Defrost bypass valve 2-8 closes; In car, air-conditioning duct control valve 2-11 closes; Waste heat recovery control valve 10-1 closes the outer motor cooling air channel air intlet of car, opens the electric motor cooling duct import; Waste heat recovery control valve 10-2 closes the outer motor cooling air channel air outlet slit of car, opens the electric motor cooling duct outlet.Cold-producing medium is discharged through automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 exhaust outlet, through after air heat exchanger 7, check valve 2-5, liquid storage dryer 4, mixed gas heat exchanger 5-2, low pressure choke valve 6, check valve 2-2, car outer air heat exchanger 3, gas-liquid separator 8 in car, sucked from air entry by automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 successively; Another road cold-producing medium is discharged through automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 exhaust outlet, through after air heat exchanger 7, check valve 2-5, liquid storage dryer 4, mixed gas control valve 2-6, mixed gas choke valve 5-1, mixed gas heat exchanger 5-2, mixed gas check-valves 5-3 in car, enter automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 from the mixed gas interface of compressor successively.Enter electric motor cooling duct after air heat exchanger 7 in air process car in car, through absorbing the motor waste heat after gas-gas double-sided cooled type motor coolant jacket 9-1, to carrying out heat supply in car.
Be vehicle window defrosting/demist mode of operation flow chart as shown in figure 12, by function control valve 2-1, automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 outlet is communicated with car outer air heat exchanger 3 interfaces, and gas-liquid separator 8 entrances are communicated with air heat exchanger 7 another interfaces in car; Mixed gas control valve 2-6 closes; Mixed gas heat exchanger bypass valve 2-7 opens; Defrost bypass valve 2-8 closes; In car, air-conditioning duct control valve 2-11 closes; Waste heat recovery control valve 10-1 closes the outer motor cooling air channel air intlet of car, opens the electric motor cooling duct import; Waste heat recovery control valve 10-2 closes the outer motor cooling air channel air outlet slit of car, opens the electric motor cooling duct outlet.Cold-producing medium is discharged through automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 exhaust outlet, through after air heat exchanger 7, gas-liquid separator 8 in car outer air heat exchanger 3, check valve 2-3, liquid storage dryer 4, mixed gas heat exchanger bypass valve 2-7, low pressure choke valve 6, check valve 2-4, car, sucked from air entry by automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 successively.Enter electric motor cooling duct after air heat exchanger 7 in air process car in car, through absorbing the motor waste heat after gas-gas double-sided cooled type motor coolant jacket 9-1, improve through the air themperature after air cooling heat exchanger in car 7 comfort level when increasing operation defrosting/demist pattern in car.
Be the outer low-temperature heat source heat exchanger surface defrosting of car mode of operation flow chart as shown in figure 13, when the frosting of car outer air heat exchanger, by function control valve 2-1, automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 outlet is communicated with car outer air heat exchanger 3 interfaces, and gas-liquid separator 8 entrances are communicated with air heat exchanger 7 another interfaces in car; Mixed gas control valve 2-6 closes; Mixed gas heat exchanger bypass valve 2-7 opens; Defrost bypass valve 2-8 opens; In car, air-conditioning duct control valve 2-11 closes; Waste heat recovery control valve 10-1 closes the outer motor cooling air channel air intlet of car, opens the electric motor cooling duct import; Waste heat recovery control valve 10-2 closes the outer motor cooling air channel air outlet slit of car, opens the electric motor cooling duct outlet.Cold-producing medium is discharged through automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 exhaust outlet, after passing through successively car outer air heat exchanger 3, check valve 2-3, liquid storage dryer 4, gas heat exchanger bypass valve 2-7, low pressure choke valve 6 and defrost bypass valve 2-8, check valve 2-4, the interior air heat exchanger 7 of car, gas-liquid separator 8, sucked from air entry by automobile-used totally-enclosed frequency conversion type air conditioning compressor 1, car outer air heat exchanger is defrosted.Part of refrigerant has improved cold-producing medium evaporating temperature in air heat exchanger 7 in car by defrost bypass valve 2-8, and when making the interior air of car through the interior air heat exchanger 7 of car, temperature is near vehicle interior temperature.Enter electric motor cooling duct after air heat exchanger 7 in air process car in car, through absorbing the motor waste heat after gas-gas double-sided cooled type motor coolant jacket 9-1, improve through advancing the interior air cooling heat exchanger of car air themperature afterwards the interior comfort level of car when increasing operation car outer air heat exchanger defrosting mode of operation.

Claims (6)

1. gas recovery type heat electric automobile heat-pump air-conditioning system is characterized in that: described air-conditioning system comprises air heat exchanger (7) in car outer air heat exchanger (3), car, liquid storage dryer (4), gas-liquid separator (8), low pressure choke valve (6), the mixed gas of cooling compressor synergy system, drive motors gas heat recovery system, system model switching device shifter and the automobile-used totally-enclosed frequency conversion type air conditioning compressor (1) that adopts direct current generator to drive, wherein said automobile-used totally-enclosed frequency conversion type air conditioning compressor is made of compressor housing (19), motor (20), static vortex (21), moving vortex (22) and the mixed gas of cooling synergy system, compressor housing (19) is provided with compressor air suction snap joint (23) and compressor air-discharging snap joint (24), the mixed gas of described cooling compressor synergy system is comprised of the built-in cooling synergy of compressor air mixing machine structure and the outside mixed gas disposal of compressor and control device, the built-in cooling synergy of described compressor air mixing machine structure is by the built-in gas mixed hole of compressor (16), the built-in gas mixed hole interface channel of compressor (17) and be connected with the built-in gas mixed hole interface channel of the compressor other end and the external snap joint (18) that is fixed on compressor housing forms, and is divided into low pressure air mixing machine structure, medium-pressure mechanism, three kinds of forms of high pressure air mixing machine structure, the built-in gas mixed hole of compressor (16) of described low pressure air mixing machine structure is opened in housing part corresponding to compressor air suction chamber or is connected with compressor suction duct by the fast three-way joint, the built-in gas mixed hole of compressor (16) of described medium-pressure mechanism is opened in the relevant position of compressor static vortex (21) and the first compression chamber corresponding part, the built-in gas mixed hole of compressor (16) of described high pressure air mixing machine structure is opened in the relevant position of compressor static vortex (21) and the second compression chamber corresponding part, the outside mixed gas disposal of described compressor and control device are comprised of mixed gas choke valve (5-1), mixed gas heat exchanger (5-2), mixed gas check-valves (5-3), the mixed gas interface external connecting pipe of compressor, described system model switching device shifter is comprised of function control valve (2-1), mixed gas control valve (2-6), mixed gas heat exchanger bypass valve (2-7), defrost bypass valve (2-8), the first check valve (2-2) air-conditioning duct control valve (2-9) air-conditioning duct control valve (2-11) to the 3rd car to the 4th check valve (2-5), the first car, described automobile-used totally-enclosed frequency conversion type air conditioning compressor (1) outlet is connected with car outer air heat exchanger (3), the interior air heat exchanger (7) of car, gas-liquid separator (8) the corresponding interface respectively by function control valve (2-1) and corresponding connecting line, described gas-liquid separator (8) outlet access automobile-used totally-enclosed frequency conversion type air conditioning compressor (1) air entry, another interface of described car outer air heat exchanger (3) connects the first check valve (2-2) outlet and the second check valve (2-3) entrance, the second check valve (2-3) outlet connects liquid storage dryer (4) and the 4th check valve (2-5) outlet, liquid storage dryer (4) outlet respectively with the entrance of mixed gas control valve (2-6), the first entrance of the entrance of mixed gas heat exchanger bypass valve (2-7) and mixed gas heat exchanger (5-2) connects, mixed gas heat exchanger bypass valve (2-7) outlet and mixed gas heat exchanger (5-2) the first outlet connect low pressure choke valve (6) entrance and defrost bypass valve (2-8) entrance, low pressure choke valve (6) outlet connects the first check valve (2-2) entrance and the 3rd check valve (2-4) entrance, defrost bypass valve (2-8) outlet connects the first check valve (2-2) entrance and the 3rd check valve (2-4) entrance, the 3rd check valve (2-4) outlet connects air heat exchanger (7) entrance and the 4th check valve (2-5) entrance in car, described mixed gas control valve (2-6) outlet connects mixed gas choke valve (5-1) entrance, mixed gas choke valve (5-1) outlet connects mixed gas heat exchanger (5-2) the second entrance, mixed gas heat exchanger (5-2) the second outlet connects mixed gas check-valves (5-3) entrance, and mixed gas check-valves (5-3) outlet connects the mixed gas port of automobile-used totally-enclosed frequency conversion type air conditioning compressor, air-conditioning duct control valve (2-10) in the second car that be provided for realizing in car in air-conditioning duct in the car of air heat exchanger in car (7) inlet side, the car external air inlet switches mutually sets gradually for air-conditioning duct control valve (2-11) in the 3rd car of realizing entering after air is through air heat exchanger (7) in car electric motor cooling duct, is used for air-conditioning duct control valve (2-9) in the first car that realization defrosting/demist air outlet and Che Nei air outlet switch mutually in air-conditioning duct in the car of air heat exchanger in car (7) air side, described drive motors gas heat recovery system comprises by gas-gas double-sided cooled type motor coolant jacket (9-1), is arranged on electric machine built-in air cooling mechanism (9-3), electric machine external cooling blower (9-2) in gas-gas double-sided cooled type motor coolant jacket (9-1), described gas-gas double-sided cooled type motor coolant jacket (9-1) is arranged on the middle part in the cooling connection of motor air channel, before the cooling connection of described motor air channel is divided into, in, rear three sections, leading portion is provided with the import of car outer air, the electric motor cooling duct import with interface that gas-gas double-sided cooled type motor coolant jacket (9-1) air inlet is connected, described gas-gas double-sided cooled type motor coolant jacket (9-1) is arranged on the stage casing in the cooling connection of motor air channel, back segment is provided with the outlet of car outer air, electric motor cooling duct outlet with interface that gas-gas double-sided cooled type motor coolant jacket (9-1) air outlet is connected, described electric machine external cooling blower (9-2) is arranged in the cooling connection of the motor air channel of gas-gas double-sided cooled type motor coolant jacket (9-1) side, car outer air import in the cooling connection of leading portion motor air channel, electric motor cooling duct import department is provided for realizing the car outer air, the first waste heat recovery control device (10-1) that the import of motor cooling air is switched mutually, car outer air outlet in the cooling connection of back segment motor air channel, the electric motor cooling duct exit is provided for realizing the car outer air, the second waste heat recovery control device (10-2) that the motor cooling air outlet switches mutually.
2. gas recovery type heat electric automobile heat-pump air-conditioning system according to claim 1 is characterized in that: described electric machine built-in air cooling mechanism (9-3) is by forming as coolant jacket inner casing (11), the coolant jacket shell (12) of direct current generator housing and several air-duct clapboards (13) that are connected between inside and outside coolant jacket; Be provided with the some axial direct ribs (14) that consist of cooling air channel in coolant jacket inner casing (11) inboard, described direct current generator is arranged in the ring cavity that is made of some axial direct ribs (14) inner face, at the direct current generator axle head, built-in air-cooling fan (15) is installed.
3. gas recovery type heat electric automobile heat-pump air-conditioning system according to claim 1, it is characterized in that: described electric machine external cooling blower (9-2) is for forced structure, is arranged in the cooling connection of the motor air channel of gas-gas double-sided cooled type motor coolant jacket (9-1) inlet side.
4. gas recovery type heat electric automobile heat-pump air-conditioning system according to claim 1, it is characterized in that: described electric machine external cooling blower (9-2) is for the suction-type structure, is arranged in the cooling connection of the motor air channel of gas-gas double-sided cooled type motor coolant jacket (9-1) air side.
5. gas recovery type heat electric automobile heat-pump air-conditioning system according to claim 1, it is characterized in that: the described automobile-used totally-enclosed frequency conversion type air conditioning compressor (1) that is driven by direct current generator is any one in piston type, vortex or triangle rotor type compressor, and direct current generator and automobile-used totally-enclosed frequency conversion type air conditioning compressor are enclosed in same housing.
6. gas recovery type heat electric automobile heat-pump air-conditioning system according to claim 1 is characterized in that: in described car outer air heat exchanger (3), car, air heat exchanger (7) is any one version in fin-tube type, stacked or parallel flow heat exchanger.
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CN107356005B (en) * 2016-05-10 2019-12-20 比亚迪股份有限公司 Heat pump air conditioning system and electric automobile
CN107356003B (en) 2016-05-10 2021-04-20 比亚迪股份有限公司 Heat pump air conditioning system and electric automobile
CN106642852A (en) * 2016-12-30 2017-05-10 中原工学院 Three-level composite type fast defrosting system for refrigerating device
CN110126586A (en) * 2019-06-18 2019-08-16 电子科技大学中山学院 Integrated electric drive system drives entire car heat management system

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Address after: 459000 No. 6 high-tech industry agglomeration area, Henan, Jiyuan

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Patentee before: Jiyuan Beidi Underground Energy Central Air Conditioning Equipment Co., Ltd.

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