CN102331047A - 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 PDFInfo
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- CN102331047A CN102331047A CN201110207060A CN201110207060A CN102331047A CN 102331047 A CN102331047 A CN 102331047A CN 201110207060 A CN201110207060 A CN 201110207060A CN 201110207060 A CN201110207060 A CN 201110207060A CN 102331047 A CN102331047 A CN 102331047A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General 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
- F25B2400/13—Economisers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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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
Technical field
The present invention relates to a kind of electric automobile air-conditioning system, relate to a kind of gas recovery type heat electric automobile heat-pump air-conditioning system specifically.
Background technology
Development along with electric vehicle engineering; The electric automobile air-conditioning is also increasing to the restriction of its development; Its reason is: owing to lacked explosive motor; Winter heating receives very big restriction, and particularly when outside air temperature was very low, the electric automobile air-conditioning system of exploitation can't operate as normal.This has had a strong impact on electric automobile popularizing at northern area.
Summary of the invention
The object of the invention for a kind of gas recovery type heat electric automobile heat-pump air-conditioning system is provided, is crossed the problem that can't normally heat when hanging down to solve present common electric automotive air-conditioning system in outdoor temperature just.
The object of the invention can be realized through following technique measures:
Gas recovery type heat electric automobile heat-pump air-conditioning system of the present invention comprises by air heat exchanger, liquid storage drier, gas-liquid separator, low pressure choke valve, the mixed gas system of cooling compressor synergy, drive motors gas heat recovery system, system model switching device shifter etc. in the automobile-used totally-enclosed frequency conversion type air conditioning compressor of direct current generator driving, car outer air heat exchanger, the car; Wherein said automobile-used totally-enclosed frequency conversion type air conditioning compressor mixes the gas system by compressor housing, motor, static vortex, moving vortex and cooling synergy and constitutes.Said cooling compressor synergy mixes the gas system and is made up of mixed gas disposal of the built-in cooling synergy of compressor air mixing machine structure and compressor outside and control device; The built-in cooling synergy of said compressor air mixing machine structure is connected by the built-in gas mixed hole of compressor, the built-in gas mixed hole interface channel of compressor and with the built-in gas mixed hole interface channel of the compressor other end and the external snap joint that is fixed on the compressor housing is formed, and is divided into low pressure air mixing machine structure, middle pressure air mixing machine structure, three kinds of forms of high pressure air mixing machine structure; The built-in gas mixed hole of compressor of said low pressure air mixing machine structure is opened in the corresponding housing part in compressor air suction chamber or is opened in the relevant position of the compressor static vortex and the second compression chamber counterpart through 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 said middle pressure air mixing machine structure is opened in the relevant position of the compressor static vortex and the first compression chamber counterpart, said high pressure air mixing machine structure; Outside mixed gas disposal of said compressor and control device are mixed gas interface external connecting pipe and are formed by mixed gas choke valve, mixed gas heat exchanger, mixed gas check-valves, compressor; Said mixed gas choke valve is any one throttling dropping equipment in electric expansion valve, heating power expansion valve, capillary or the restriction sleeve; Said mixed gas heat exchanger is reducing bushing formula, any one in board-like, case tubular type or the shell and tube exchanger at interval; Said mixed gas check-valves can realize mixing the maximization of tolerance, strengthens to mix the gas effect; Said system model switching device shifter by the function control valve, mix gas control valve, mix in gas heat exchanger bypass valve, defrost bypass valve, first check valve to the, four check valves, first car in air-conditioning duct control valve to the three cars air-conditioning duct control valve forms (feasible system to the refrigeration in the electric automobile car, commonly heat, low temperature mixes that gas heats, vehicle window defrosting/demist and five kinds of mode of operations switchings of the outer low-temperature heat source heat exchanger surface defrosting of car); Said 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; Said automobile-used totally-enclosed frequency conversion type air conditioning compressor outlet through function control valve and corresponding connecting line respectively with car outer air heat exchanger, car in air heat exchanger, gas-liquid separator the corresponding interface be connected; Said gas-liquid separator outlet inserts automobile-used totally-enclosed frequency conversion type air conditioning compressor air suction mouth; Said another interface of car outer air heat exchanger connects outlet of first check valve and second check valve inlet; The outlet of second check valve connects liquid storage drier and the outlet of the 4th check valve; The liquid storage dryer export respectively with the inlet of mixed gas control valve, mix the inlet of gas heat exchanger bypass valve and connect first inlet that mixes the gas heat exchanger and be connected; Mixed gas heat exchanger bypass valve outlet port and first outlet of mixed gas heat exchanger connect low pressure choke valve inlet and defrost bypass valve inlet; The outlet of low pressure choke valve connects first check valve inlet and the 3rd check valve inlet; The defrost bypass valve outlet connects first check valve inlet and the 3rd check valve inlet, and the outlet of the 3rd check valve connects two thermal source heat-exchanger rig inlets and the 4th check valve inlet in the car; Said mixed gas control valve outlet connects and mixes moral stream valve inlet, mixes moral stream valve outlet port and connects and mix gas heat exchanger second inlet, mixes second outlet of gas heat exchanger and connects and mix gas check-valves inlet, mixes the outlet of gas check-valves and connects automobile-used totally-enclosed frequency conversion type air conditioning compressor and mix gas port; Air-conditioning duct control valve in second car that in car, be provided for realizing in the car in the car of air heat exchanger inlet side in the air-conditioning duct, the car external air inlet switches each other, in car, set gradually air-conditioning duct control valve in the 3rd car that is used for realizing getting into after air is through air heat exchanger in the car electric motor cooling duct in the car of air heat exchanger air side in the air-conditioning duct, be used to realize to defrost/first car that demist air outlet and Che Nei air outlet switch each other in the air-conditioning duct control valve.
Said 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; Said gas-gas double-sided cooled type motor coolant jacket is arranged on the motor cooling and connects the middle part in the air channel; Before, during and after the cooling of said motor connects the air channel and 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 links to each other; The cooling of the motor in stage casing connects in the air channel and is provided with gas-gas double-sided cooled type motor coolant jacket, back segment be 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 air outlet links to each other; The motor cooling that said electric machine external cooling blower is arranged on gas-gas double-sided cooled type motor coolant jacket one side connects in the air channel; Be provided for the first waste heat recovery control device of realizing that car outer air, the import of motor cooling air are switched each other in the import of car outer air, electric motor cooling duct import department that leading portion motor cooling connects the air channel, be provided for the said second electric waste heat recovery control device of realizing that car outer air, motor cooling air outlet switch each other in the outlet of car outer air, electric motor cooling duct exit that the cooling of back segment motor connects the air channel; First, second waste heat recovery control device is used the switching of the waste heat recovery pattern that can realize, heat radiation refrigerating mode.
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 channel dividing plates that are connected between the inside and outside coolant jacket; Be provided with the some axially straight rib that constitutes cooling air channel in coolant jacket inner casing inboard, said direct current generator is installed in the ring cavity that is made up of some axially straight 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, and the motor cooling that is arranged on gas-gas double-sided cooled type motor coolant jacket inlet side connects in the air channel; Said electric machine external cooling blower is the suction-type structure, and the motor cooling that is arranged on gas-gas double-sided cooled type motor coolant jacket air side connects in the air channel.
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 the three-apexed rotor formula compressor, and direct current generator and automobile-used totally-enclosed frequency conversion type air conditioning compressor are enclosed in the same housing.
Motor gas heat recovery system purpose described in the present invention is the recyclable waste heat that driving motor for electric automobile when work produce that utilizes, and is used for carrying out auxiliary heat supplying and backheat utilization in the car.Its principle is: through being contained in gas on the driving motor for electric automobile-gas double-sided cooled type motor coolant jacket, and the waste heat that driving motor for electric automobile produces during collection work, and it is cooled off.When operation waste heat recovery pattern: the first waste heat recovery control valve is closed motor cooling air channel air intlet outside the car; Open the electric motor cooling duct import; Get into electric motor cooling duct behind the air heat exchanger in the air process car in the car, through absorbing the motor waste heat behind 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 the air cooling heat exchanger in the car comfort level when increasing operation defrosting/demist pattern in the car; When operation heating mode and low temperature mix gas and heat, to carrying out auxiliary heat supplying in the car, the operating efficiency of raising heat pump.When operation heat radiation refrigerating mode: the first waste heat recovery control valve is opened motor cooling air channel air intlet outside the 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 that the motor waste heat is cooled off.
Beneficial effect of the present invention is following:
A kind of gas recovery type heat electric automobile heat-pump air-conditioning system provided by the invention; Cooling synergy through the compressor set inside mixes gas system 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; Improve reliability of system operation, can improve the heat capacity and the heating efficiency of this air-conditioning system simultaneously greatly, the power consumption when reducing electric automobile air-conditioning Winter heat supply.Through preliminary experiment of the present invention research institute is got data; After a kind of hydro-thermal reclaiming type electric automobile heat-pump air-conditioning system provided by the invention adopts cooling synergy to mix gas system and automobile-used motor hydro-thermal recovery system; Under the ultralow temperature heat supply operating mode of outdoor temperature-10 ℃; The delivery temperature of compressor is reduced to below 70 ℃; The coefficient of heat supply of air-conditioning system is up to about 2.4, two key technology difficult problems that need to be resolved hurrily such as the excessive discharge temperature of compressor, the obvious deficiency of heating capacity in the time of can solving the operation of pump type heat electric automobile air conditioner low temperature operating mode preferably.The present invention is significant to accelerating popularizing with application of electric automobile, for the northerly development of electric automobile provides the air-conditioning technical support.
Description of drawings
Fig. 1 is a structural principle of the present invention.
Fig. 2 mixes the gas schematic diagram for the present invention.
Fig. 3 is for mixing a kind of structure chart of gas port in the gas mixing device of the present invention.
Fig. 4 is for mixing second kind of structure chart of gas port in the gas mixing device of the present invention.
Fig. 5 is for mixing the third structure chart of gas port in the gas mixing device of the present invention.
Fig. 6 is for mixing the 4th kind of structure chart of gas port in the gas mixing device of the present invention.
Fig. 7 is electric machine built-in air cooling mechanism structure chart among 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.
Among the 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 a check valve; 2-6 mixes gas control valve; 2-7 mixes gas heat exchanger bypass valve; 2-8 is a defrost bypass valve; 2-9 to 2-11 is an air-conditioning duct control valve in the car; The 3rd, car outer air heat exchanger; The 4th, the liquid storage drier; 5-1 mixes the gas choke valve; 5-2 mixes the gas heat exchanger; 5-3 mixes the gas check-valves; The 6th, the low pressure choke valve; The 7th, air heat exchanger in the 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, the air channel dividing plate; The 14th, axially straight 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 the external snap joint on the 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 will combine embodiment (accompanying drawing) to do once to further describe, but 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 by air heat exchanger 7, liquid storage drier 4, gas-liquid separator 8, low pressure choke valve 6, the mixed gas system of cooling compressor synergy, drive motors gas heat recovery system, system model switching device shifter in the automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 of direct current generator driving, car outer air heat exchanger 3, the car; Wherein said cooling compressor synergy mixes the gas system and is made up of mixed gas disposal of the built-in cooling synergy of compressor air mixing machine structure and compressor outside and control device; The built-in cooling synergy of said compressor air mixing machine structure is connected by the built-in gas mixed hole of compressor 16, the built-in gas mixed hole interface channel 17 of compressor and with the built-in gas mixed hole interface channel of the compressor other end and the external snap joint 18 that is fixed on the compressor housing is formed, and is divided into low pressure air mixing machine structure, middle pressure air mixing machine structure, three kinds of forms of high pressure air mixing machine structure; The built-in gas mixed hole 16 of the compressor of said low pressure air mixing machine structure is opened in the corresponding housing part in compressor air suction chamber or is opened in the relevant position of the compressor static vortex 21 and the second compression chamber counterpart through 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 said middle pressure air mixing machine structure is opened in the relevant position of the compressor static vortex 21 and the first compression chamber counterpart, said high pressure air mixing machine structure; Outside mixed gas disposal of said compressor and control device are mixed gas interface external connecting pipe and are formed by mixed gas choke valve 5-1, mixed gas heat exchanger 5-2, mixed gas check-valves 5-3, compressor; Said system model switching device shifter is made up 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, first car; Said automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 outlet through function control valve 2-1 and corresponding connecting line respectively with car outer air heat exchanger 3, car in air heat exchanger 7, gas-liquid separator 8 the corresponding interface be connected; Said gas-liquid separator 8 outlets insert automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 air entry; Said car outer air heat exchanger 3 another interfaces connect first check valve 2-2 outlet and second check valve 2-3 inlet; Second check valve 2-3 outlet connects liquid storage drier 4 and the 4th check valve 2-5 outlet; Liquid storage drier 4 outlet respectively with the inlet of mixed gas control valve 2-6, mix the inlet of gas heat exchanger bypass valve 2-7 and connect first inlet that mixes gas heat exchanger 5-2 and be connected; Mix gas heat exchanger bypass valve 2-7 outlet and mix gas heat exchanger 5-2 first outlet and connect low pressure choke valve 6 inlets and defrost bypass valve 2-8 inlet; 6 outlets of low pressure choke valve connect first check valve 2-2 inlet and the 3rd check valve 2-4 inlet; Defrost bypass valve 2-8 outlet connects first check valve 2-2 inlet and the 3rd check valve 2-4 inlet, and the 3rd check valve 2-4 outlet connects two thermal source heat-exchanger rig 7 inlets and the 4th check valve 2-5 inlet in the car; Said mixed gas control valve 2-6 outlet connects and mixes gas choke valve 5-1 inlet; Mix gas choke valve 5-1 outlet and connect mixed gas heat exchanger 5-2 second inlet; Mix gas heat exchanger 5-2 second outlet and connect mixed gas check-valves 5-3 inlet, mixed gas check-valves 5-3 outlet connects automobile-used totally-enclosed frequency conversion type air conditioning compressor and mixes gas port; Air-conditioning duct control valve 2-10 in second car that in car, be provided for realizing in the car in the air-conditioning duct in the car of air heat exchanger 7 inlet sides, the car external air inlet switches each other, in car, set gradually in the air-conditioning duct in the car of air heat exchanger 7 air sides be used for realizing air get into air-conditioning duct control valve 2-11 in the 3rd car of electric motor cooling ducts through 7 backs of air heat exchanger in the car, be used to realize to defrost/mutual switching first car of demist air outlet and Che Nei air outlet in air-conditioning duct control valve 2-9; Said 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; Said gas-gas double-sided cooled type motor coolant jacket 9-1 is arranged on the motor cooling and connects the middle part in the air channel; Before, during and after the cooling of said motor connects the air channel and 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 9-1 air inlet links to each other; Said gas-gas double-sided cooled type motor coolant jacket 9-1 is arranged on motor cooling and connects the stage casing in the air channel, back segment is provided with the outlet of car outer air, electric motor cooling duct exports with interface that gas-gas double-sided cooled type motor coolant jacket 9-1 air outlet links to each other; The motor cooling that said electric machine external cooling blower 9-2 is arranged on gas-gas double-sided cooled type motor coolant jacket 9-1 one side connects in the air channel; Be provided for the first waste heat recovery control device 10-1 that realizes that car outer air, the import of motor cooling air are switched each other in the import of car outer air, electric motor cooling duct import department that leading portion motor cooling connects the air channel, be provided for the said second electric waste heat recovery control device 10-2 that realizes that car outer air, motor cooling air outlet switch each other in the outlet of car outer air, electric motor cooling duct exit that the cooling of back segment motor connects the air channel.
Electric machine external cooling blower 9-2 according to the invention is forced structure, and the motor cooling that is arranged on gas-gas double-sided cooled type motor coolant jacket 9-1 inlet side connects in the air channel; Said electric machine external cooling blower 9-2 also can be the suction-type structure, and the motor cooling that is arranged on gas-gas double-sided cooled type motor coolant jacket 9-1 air side connects in the air channel.
The said 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 the three-apexed rotor formula compressor, and direct current generator and automobile-used totally-enclosed frequency conversion type air conditioning compressor are enclosed in the same housing.
As shown in Figure 2, mixed gas endless form of the present invention is following: 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, behind the low pressure choke valve, gets into evaporimeter, is compressed the machine air entry at last and sucks; Another road is to mix the gas circulation, behind overmulling moral stream valve, gets into and mixes the heat exchange of gas heat exchanger, becomes gaseous state behind the cooling major cycle cold-producing medium, mixes the gas interface by compressor at last and gets into compressor.Its principle is: feed the refrigerant gas of a certain amount of a certain intermediate pressure through mixing air circuit to compressor centre position or suction location, 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, making has increased the heat from outdoor absorption, has improved the efficient of heat pump.
Like 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 mixes the gas system by compressor housing 19, motor 20, static vortex 21, moving vortex 22 and cooling synergy and constitutes.Compressor housing 19 is provided with compressor air suction snap joint 23 and compressor air-discharging snap joint 24.Cooling compressor synergy mixes the gas system and is made up of mixed gas disposal of the built-in cooling synergy of compressor air mixing machine structure and compressor outside and control device; The built-in cooling synergy of said compressor air mixing machine structure is connected by the built-in gas mixed hole of compressor 16, the built-in gas mixed hole interface channel 17 of compressor and with the built-in gas mixed hole interface channel of the compressor other end and the external snap joint 18 that is fixed on the compressor housing is formed, and is divided into low pressure air mixing machine structure, middle pressure air mixing machine structure, three kinds of forms of high pressure air mixing machine structure; Said low pressure is mixed gas (like Fig. 3,4), and heat pump fluid gets into the compressor air suction chamber to be mixed with superheated steam.The compressor gas mixed hole can be opened on the compressor suction duct or through the fast three-way joint and be connected with compressor suction duct, makes low pressure mix gas and gets into the compressor air suction chamber through the compressor air suction mouth more earlier with after compressor air suction mixes.Press in said and mix gas (like Fig. 5), heat pump fluid gets into 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 counterpart and is connected with external snap joint 18 on being fixed on the compressor air-discharging cavity shell through the built-in gas mixed hole interface channel 17 of compressor.Said high pressure mixes gas (like Fig. 6), and heat pump fluid gets into the high pressure chamber of compressor sound vortex formation to be mixed with the superheated steam that is compressed to high pressure.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 counterpart and is connected with external snap joint 18 on being fixed on the compressor air-discharging cavity shell through the built-in gas mixed hole interface channel 17 of compressor.Outside mixed gas disposal of said compressor and control device are mixed gas interface external connecting pipe and are formed by mixed gas choke valve 5-1, mixed gas heat exchanger 5-2, mixed gas check-valves 5-3, compressor;
Mixing gas choke valve 5-1 described in the present invention is any one throttling dropping equipment in electric expansion valve, heating power expansion valve, capillary or the restriction sleeve; Said mixed gas heat exchanger 5-2 is reducing bushing formula, any one in board-like, case tubular type or the shell and tube exchanger at interval.
Like Fig. 7, shown in 8, the said 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 channel dividing plates 13 that are connected between the inside and outside coolant jacket; Be provided with the some axially straight rib 14 that constitutes cooling air channel in coolant jacket inner casing 11 inboards, said direct current generator is installed in the ring cavity that is made up of some axially straight 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, through 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 inlets are communicated with interior air heat exchanger 7 another interfaces of car; Mixing gas control valve 2-6 closes; Mixing gas heat exchanger bypass valve 2-7 opens; Defrost bypass valve 2-8 closes; Air-conditioning duct control valve 2-11 opens in the car; 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 behind air heat exchanger 7, the gas-liquid separator 8 in car outer air heat exchanger 3, check valve 2-3, liquid storage drier 4, mixed gas heat exchanger bypass valve 2-7, low pressure choke valve 6, check valve 2-4, the car, sucked from air entry successively by automobile-used totally-enclosed frequency conversion type air conditioning compressor 1.Rely on the car outer air that the motor waste heat is cooled off.
Shown in figure 10 for heating the mode of operation flow chart, through function control valve 2-1, automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 outlet is communicated with interior air heat exchanger 7 interfaces of car, gas-liquid separator 8 inlets are communicated with another interface of car outer air heat exchanger; Mixing gas control valve 2-6 closes; Mixing gas heat exchanger bypass valve 2-7 opens; Defrost bypass valve 2-8 closes; Air-conditioning duct control valve 2-11 closes in the car; 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 behind air heat exchanger 7, check valve 2-5, liquid storage drier 4, mixed gas heat exchanger bypass valve 2-7, low pressure choke valve 6, check valve 2-2, car outer air heat exchanger 3, the gas-liquid separator 8 in the car, sucked from air entry successively by automobile-used totally-enclosed frequency conversion type air conditioning compressor 1.Air gets into electric motor cooling duct through 7 backs of air heat exchanger in the car in the car, through absorbing the motor waste heat behind gas-gas double-sided cooled type motor coolant jacket 9-1, to carrying out heat supply in the car.
Shown in figure 11 for heating mixed gas mode of operation flow chart, through function control valve 2-1, automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 outlet is communicated with interior air heat exchanger 7 interfaces of car, gas-liquid separator 8 inlets are communicated with another interface of car outer air heat exchanger; Mixing gas control valve 2-6 opens; Mixing gas heat exchanger bypass valve 2-7 closes; Defrost bypass valve 2-8 closes; Air-conditioning duct control valve 2-11 closes in the car; 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 behind air heat exchanger 7, check valve 2-5, liquid storage drier 4, mixed gas heat exchanger 5-2, low pressure choke valve 6, check valve 2-2, car outer air heat exchanger 3, the gas-liquid separator 8 in the car, sucked from air entry successively by automobile-used totally-enclosed frequency conversion type air conditioning compressor 1; Another road cold-producing medium is discharged through automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 exhaust outlet; Behind the interior air heat exchanger 7 of process car, check valve 2-5, liquid storage drier 4, mixed gas control valve 2-6, mixed gas choke valve 5-1, mixed gas heat exchanger 5-2, the mixed gas check-valves 5-3, get into automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 successively from the mixed gas interface of compressor.Air gets into electric motor cooling duct through 7 backs of air heat exchanger in the car in the car, through absorbing the motor waste heat behind gas-gas double-sided cooled type motor coolant jacket 9-1, to carrying out heat supply in the car.
Shown in figure 12 is vehicle window defrosting/demist mode of operation flow chart; Through 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 inlets are communicated with interior air heat exchanger 7 another interfaces of car; Mixing gas control valve 2-6 closes; Mixing gas heat exchanger bypass valve 2-7 opens; Defrost bypass valve 2-8 closes; Air-conditioning duct control valve 2-11 closes in the car; 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 behind air heat exchanger 7, the gas-liquid separator 8 in car outer air heat exchanger 3, check valve 2-3, liquid storage drier 4, mixed gas heat exchanger bypass valve 2-7, low pressure choke valve 6, check valve 2-4, the car, sucked from air entry successively by automobile-used totally-enclosed frequency conversion type air conditioning compressor 1.Air gets into electric motor cooling duct through 7 backs of air heat exchanger in the car in the car; Through absorbing the motor waste heat behind gas-gas double-sided cooled type motor coolant jacket 9-1; Improve through the air themperature after the air cooling heat exchanger in the car 7 comfort level when increasing operation defrosting/demist pattern in the car.
Shown in figure 13 is the outer low-temperature heat source heat exchanger surface defrosting of car mode of operation flow chart; When the frosting of car outer air heat exchanger; Through 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 inlets are communicated with interior air heat exchanger 7 another interfaces of car; Mixing gas control valve 2-6 closes; Mixing gas heat exchanger bypass valve 2-7 opens; Defrost bypass valve 2-8 opens; Air-conditioning duct control valve 2-11 closes in the car; 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 car outer air heat exchanger 3, check valve 2-3, liquid storage drier 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 successively; 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 air heat exchanger 7 in car through defrost bypass valve 2-8, and temperature is near vehicle interior temperature when making in the car air through the interior air heat exchanger 7 of car.Air gets into electric motor cooling duct through 7 backs of air heat exchanger in the car in the car; Through absorbing the motor waste heat behind 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: said air-conditioning system comprises that air heat exchanger (7), liquid storage drier (4), gas-liquid separator (8), low pressure choke valve (6), cooling compressor synergy mix gas system, drive motors gas heat recovery system, system model switching device shifter 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), the car; Wherein said automobile-used totally-enclosed frequency conversion type air conditioning compressor mixes the gas system by compressor housing (19), motor (20), static vortex (21), moving vortex (22) and cooling synergy and constitutes; Compressor housing (19) is provided with compressor air suction snap joint (23) and compressor air-discharging snap joint (24); Said cooling compressor synergy mixes the gas system and is made up of mixed gas disposal of the built-in cooling synergy of compressor air mixing machine structure and compressor outside and control device; The built-in cooling synergy of said compressor air mixing machine structure is connected by the built-in gas mixed hole of compressor (16), the built-in gas mixed hole interface channel of compressor (17) and with the built-in gas mixed hole interface channel of the compressor other end and the external snap joint (18) that is fixed on the compressor housing is formed, and is divided into low pressure air mixing machine structure, middle pressure air mixing machine structure, three kinds of forms of high pressure air mixing machine structure; The built-in gas mixed hole of compressor (16) of said low pressure air mixing machine structure is opened in the corresponding housing part in compressor air suction chamber or is connected with compressor suction duct through the fast three-way joint; The built-in gas mixed hole of compressor (16) of pressure air mixing machine structure is opened in the relevant position of the compressor static vortex (21) and the first compression chamber counterpart in said; The built-in gas mixed hole of compressor (16) of said high pressure air mixing machine structure is opened in the relevant position of the compressor static vortex (21) and the second compression chamber counterpart; Outside mixed gas disposal of said compressor and control device are mixed gas interface external connecting pipe and are formed by mixed gas choke valve (5-1), mixed gas heat exchanger (5-2), mixed gas check-valves (5-3), compressor; Said system model switching device shifter is made up of air-conditioning duct control valve (2-11) in air-conditioning duct control valve (2-9) to the 3rd car 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), first check valve (2-2) to the 4th check valve (2-5), first car; Said 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 through function control valve (2-1) and corresponding connecting line; Said gas-liquid separator (8) outlet inserts automobile-used totally-enclosed frequency conversion type air conditioning compressor (1) air entry; Another interface of said car outer air heat exchanger (3) connects first check valve (2-2) outlet and second check valve (2-3) inlet; Second check valve (2-3) outlet connects liquid storage drier (4) and the 4th check valve (2-5) outlet; Liquid storage drier (4) outlet is connected with first inlet of the inlet of mixed gas control valve (2-6), the inlet that mixes gas heat exchanger bypass valve (2-7) and mixed gas heat exchanger (5-2) respectively; Mixed gas heat exchanger bypass valve (2-7) outlet and mixed gas heat exchanger (5-2) first outlet connect low pressure choke valve (6) inlet and defrost bypass valve (2-8) inlet; Low pressure choke valve (6) outlet connects first check valve (2-2) inlet and the 3rd check valve (2-4) inlet; Defrost bypass valve (2-8) outlet connects first check valve (2-2) inlet and the 3rd check valve (2-4) inlet, and the 3rd check valve (2-4) outlet connects two thermal source heat-exchanger rig (7) inlets and the 4th check valve (2-5) inlet in the car; Said mixed gas control valve (2-6) outlet connects and mixes gas choke valve (5-1) inlet; Mix gas choke valve (5-1) outlet and connect mixed gas heat exchanger (5-2) second inlet; Mix gas heat exchanger (5-2) second outlet and connect mixed gas check-valves (5-3) inlet, mixed gas check-valves (5-3) outlet connects automobile-used totally-enclosed frequency conversion type air conditioning compressor and mixes gas port; Air-conditioning duct control valve (2-10) in second car that be provided for realizing in the car in the air-conditioning duct in the car of air heat exchanger in car (7) inlet side, the car external air inlet switches each other, set gradually in the air-conditioning duct in the car of air heat exchanger in car (7) air side be used for realizing air through air-conditioning duct control valve (2-11) in the 3rd car of entering electric motor cooling duct in air heat exchanger (7) back in the car, be used to realize to defrost/first car that demist air outlet and Che Nei air outlet switch each other in air-conditioning duct control valve (2-9); Said 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); Said gas-gas double-sided cooled type motor coolant jacket (9-1) is arranged on the motor cooling and connects the middle part in the air channel; Before, during and after the cooling of said motor connects the air channel and 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 (9-1) air inlet links to each other; Said gas-gas double-sided cooled type motor coolant jacket (9-1) is arranged on motor cooling and connects the stage casing in the air channel, back segment is provided with the outlet of car outer air, electric motor cooling duct exports with interface that gas-gas double-sided cooled type motor coolant jacket (9-1) air outlet links to each other; The motor cooling that said electric machine external cooling blower (9-2) is arranged on gas-gas double-sided cooled type motor coolant jacket (9-1) side connects in the air channel; 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 each other in the import of car outer air, electric motor cooling duct import department that leading portion motor cooling connects the air channel, be provided for the second electric waste heat recovery control device (10-2) of realizing that car outer air, motor cooling air outlet switch each other in the outlet of car outer air, electric motor cooling duct exit that the cooling of back segment motor connects the air channel.
2. gas recovery type heat electric automobile heat-pump air-conditioning system according to claim 1 is characterized in that: said 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 channel dividing plates (13) that are connected between the inside and outside coolant jacket; Be provided with the some axially straight rib (14) that constitutes cooling air channel in coolant jacket inner casing (11) inboard, said direct current generator is installed in the ring cavity that is made up of some axially straight rib (14) inner faces, 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: said electric machine external cooling blower (9-2) is forced structure, and the motor cooling that is arranged on gas-gas double-sided cooled type motor coolant jacket (9-1) inlet side connects in the air channel.
4. gas recovery type heat electric automobile heat-pump air-conditioning system according to claim 1; It is characterized in that: said electric machine external cooling blower (9-2) is the suction-type structure, and the motor cooling that is arranged on gas-gas double-sided cooled type motor coolant jacket (9-1) air side connects in the air channel.
5. gas recovery type heat electric automobile heat-pump air-conditioning system according to claim 1; It is characterized in that: the said automobile-used totally-enclosed frequency conversion type air conditioning compressor (1) that is driven by direct current generator is in piston type, vortex or the three-apexed rotor formula compressor any one, and direct current generator and automobile-used totally-enclosed frequency conversion type air conditioning compressor are enclosed in the same housing.
6. hydro-thermal reclaiming type electric automobile heat-pump air-conditioning system according to claim 1 is characterized in that: air heat exchanger (7) is any one version in fin-tube type, the stacked or parallel flow heat exchanger in the described car outer air heat exchanger (3), car.
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| CN102788397A (en) * | 2012-09-05 | 2012-11-21 | 天津三电汽车空调有限公司 | Heat pump air-conditioning system of electric vehicle |
| CN104266401A (en) * | 2014-09-11 | 2015-01-07 | 中国科学院理化技术研究所 | Heat pump air-conditioning system produced by electric vehicle exhaust heat recovery method |
| CN106642852A (en) * | 2016-12-30 | 2017-05-10 | 中原工学院 | Three-level composite type fast defrosting system for refrigerating device |
| WO2017193852A1 (en) * | 2016-05-10 | 2017-11-16 | 比亚迪股份有限公司 | Heat pump air-conditioning system and electric vehicle |
| CN110126586A (en) * | 2019-06-18 | 2019-08-16 | 电子科技大学中山学院 | Integrated electric drive system driven car whole-vehicle heat management system |
| US10843528B2 (en) | 2016-05-10 | 2020-11-24 | Byd Company Limited | Heat pump air-conditioning system and electric vehicle |
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| CN102331047B (en) | 2013-06-05 |
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Address after: 459000 No. 6 high-tech industry agglomeration area, Henan, Jiyuan Patentee after: HENAN BEIDI NEW ENERGY REFRIGERATION INDUSTRY CO., LTD. Patentee after: Zhongyuan University of Technology Address before: Jiyuan City, Henan province 454652 Jiaozuo Asia Bridge mound head Patentee before: Jiyuan Beidi Underground Energy Central Air Conditioning Equipment Co., Ltd. Patentee before: Zhongyuan University of Technology |