CN102331045B - Water heat recycling heat pump air-conditioning system for electric automobile - Google Patents
Water heat recycling heat pump air-conditioning system for electric automobile Download PDFInfo
- Publication number
- CN102331045B CN102331045B CN2011102070575A CN201110207057A CN102331045B CN 102331045 B CN102331045 B CN 102331045B CN 2011102070575 A CN2011102070575 A CN 2011102070575A CN 201110207057 A CN201110207057 A CN 201110207057A CN 102331045 B CN102331045 B CN 102331045B
- Authority
- CN
- China
- Prior art keywords
- air
- compressor
- car
- mixed gas
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
Landscapes
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention provides a water 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 water 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 water heat recycling system consists of a water-air bilateral cooling motor waste heat cooling device, an internal waste heat radiator, an external waste heat radiator, an external waste heat radiator fan, a waste heat recycling control device and a connecting pipeline. Due to the adoption of the water heat recycling heat pump air-conditioning system, five working modes, i.e., refrigerating, ordinary heating, low-temperature heating, vehicle window defrosting/defogging and external low-temperature heat source heat exchanger surface defrosting of the electric automobile can be realized, and the system can be used for stably and efficiently heating circularly at outdoor ultralow environmental temperature through the compressor cooling synergistic air mixing system and the automobile motor water heat recycling system.
Description
Technical field
The present invention relates to a kind of electric automobile air-conditioning system, relate to specifically a kind of water heat recovery type electromobile 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, and its reason is: owing to lacked explosive motor, winter heating is subject to very large restriction, particularly when outside air temperature was very low, the common electric automotive air-conditioning system 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 for a kind of electric automobile heat-pump air-conditioning system with the mixed gas system of cooling compressor synergy and drive motors hydro-thermal recovery system is provided, is spent the problem that can't normally heat when hanging down to solve present common electric automotive air-conditioning system at outdoor temp just.
Purpose of the present invention can realize by following technique measures:
Water heat recovery type electromobile heat pump air conditioning system of the present invention comprises the automobile-used totally-enclosed frequency conversion type air conditioning compressor that is driven by direct current generator, car outer air heat exchanger, air heat exchanger in the car, liquid storage dryer, gas-liquid separator, the low pressure choke valve, cooling compressor synergy mixes the gas system, the system model switching device shifter that is formed by function control valve, mixed gas control valve, mixed gas heat exchanger bypass valve, defrost bypass valve, first, second, third and fourth check valve, the first air-conditioning duct control valve and the second air-conditioning duct control valve, and drive motors hydro-thermal recovery system; 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 system of cooling synergy.The mixed gas system of described cooling compressor synergy is comprised of the 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 described 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 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 counterpart 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 counterpart, 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 the restriction sleeve; Described mixed gas heat exchanger is that reducing bushing formula, interval are board-like, in case tubular type or the shell and tube exchanger any one; Described mixed gas check-valves can be realized the maximization of mixed tolerance, strengthens mixed gas effect.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, the 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 outlet of the first check valve and the second check valve entrance, the outlet of the second check valve 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, and the outlet of the 3rd check valve connects air heat exchanger entrance and the 4th check valve entrance in the 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; The first air-conditioning duct control valve is installed in the air outlet place mutual switching of mist air outlet and Che Nei air outlet (can realize defrosting /) of air-conditioning duct in the car; The air inlet place of air-conditioning duct in the second air-conditioning duct control valve car mutual switching of car external air inlet (can realize in the car); Described drive motors hydro-thermal recovery system comprise waste heat radiator in the water-air double-sided cooled type motor waste heat cooling device, car, the outer waste heat radiator of car, with car that the outer waste heat radiator of car matches outside the waste heat radiator fan, by the waste heat recovery control device (the waste heat recovery control device can be realized the switching of waste heat recovery pattern, cooling pattern) that the first waste heat recovery control valve and the second waste heat recovery control valve consist of, described water-air double-sided cooled type motor waste heat cooling device comprises external cooling jacket and motor cooling water pump; The outlet of wherein said electric machine external cooling jacket connects the import of motor cooling water pump, the outlet of motor cooling water pump connects the first waste heat recovery control valve import and the second waste heat recovery control valve import, the outlet of the first waste heat recovery control valve connects the import that is arranged in the interior air-conditioning duct of car and is installed in the interior waste heat radiator of car of air heat exchanger air outlet one side in the car, the waste heat radiator outlet connects the import of electric machine external cooling jacket in the car, the outlet of the second waste heat recovery control valve connects the outer waste heat radiator import of car, and the outer waste heat radiator outlet of car connects the import of electric machine external cooling jacket.
Electric machine external cooling jacket described in the present invention comprises closed water jacket inner casing, the closed water jacket shell as motor housing and is connected to cooling water channel dividing plate between the closed water jacket inside and outside shell, be provided with the some axial direct ribs that consist of cooling air channel at closed water jacket inner casing inwall, in the ring cavity that is consisted of by some axial direct rib inner faces, direct current generator is installed, axle head at motor shaft is equipped with built-in air-cooling fan, and jointly consists of electric machine built-in air cooling mechanism by axial direct rib and built-in air-cooling fan.
The described 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, the triangle rotor type compressor, and described automobile-used totally-enclosed frequency conversion type air conditioning compressor and direct current generator are enclosed in the same closed shell.
The present invention adopts gas mixing device to solve the general-utility car air-conditioning system and spends the problem that can't normally move when hanging down at outdoor temp.The mixed gas system of cooling compressor synergy is comprised of the mixed gas disposal of the built-in cooling synergy of compressor air mixing machine structure and compressor outside and control device the mixed gas system of cooling compressor synergy; The built-in cooling synergy of described 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 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; Mixed gas heat exchanger can be divided into that reducing bushing formula, interval are board-like, case tubular type and shell-tube type etc.Mixed gas choke valve can adopt any one reducing pressure by regulating flow device in electric expansion valve, heating power expansion valve, capillary or the restriction sleeve.Mixed gas check-valves can be realized the maximization of mixed tolerance, strengthens mixed gas effect.
The mixed gas circulation theory 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 behind 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 behind overmulling moral stream valve, becomes gaseous state behind the cooling major cycle cold-producing medium, enters compressor by the mixed gas interface of compressor at last.Pass into the refrigerant gas of a certain amount of a certain intermediate pressure by mixed 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, increased the heat from outdoor absorption, improved the efficient of heat pump.
The waste heat that motor hydro-thermal 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 recycling in the car.Its principle is: by being contained in the water in the waste heat recovery water jacket on the driving motor for electric automobile, 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: hot water can be delivered to waste heat radiator in the car by water pump, when operation defrosting/demist pattern, the waste heat radiator improves through the air themperature after the air cooling heat exchanger in the car in the car, the comfort level when increasing operation defrosting/demist pattern in the car; When operation heating mode and the mixed gas heating mode of low temperature, the waste heat radiator improves the operating efficiency of heat pump to carrying out auxiliary heat supplying in the car in the car.When operation cooling pattern: hot water can be delivered to radiator outside the car by water pump, by outdoor air the hot water in the outer radiator of car be cooled off.
Beneficial effect of the present invention is as follows:
A kind of water heat recovery type electromobile 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 hydro-thermal 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 the thermal condition, 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, 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 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 structure principle chart 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 the gas mixing device of the present invention.
Fig. 4 is mixed gas port the second structure chart in the gas mixing device of the present invention.
Fig. 5 is mixed the third structure chart of gas port in the gas mixing device of the present invention.
Fig. 6 is mixed the 4th kind of structure chart of gas port in the gas mixing device of the present invention.
Fig. 7 is the electric machine external cooling water jacket structure figure described in the present invention.
Fig. 8 is the side view of Fig. 7.
Fig. 9---Figure 13 is respectively different working modes 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 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 the 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 the car, the 8th, gas-liquid separator, the 9th, waste heat radiator in the car, 10-1 is external cooling jacket, 10-2 is the motor cooling water pump, the 11st, the outer waste heat radiator of car, the 12nd, the outer waste heat radiator fan of car, 13-1 and 13-2 are the waste heat recovery control valves, the 20th, closed water jacket inner casing, the 21st, closed water jacket shell, the 22nd, the cooling water channel dividing plate, the 23rd, the axial direct rib, the 24th, built-in air-cooling fan, the 25th, the built-in gas mixed hole of compressor, the 26th, the built-in gas mixed hole interface channel of compressor, the 27th, be connected with the built-in gas mixed hole interface channel of the compressor other end and be fixed on external snap joint on the compressor housing, the 28th, compressor housing, the 29th, motor, the 30th, the compressor static vortex, the 31st, compress motor-driven vortex, the 32nd, compressor air suction snap joint, the 33rd, compressor air-discharging snap joint.
The specific embodiment
The present invention is described further below with reference to implementation column (accompanying drawing), but does not limit the present invention.
As shown in Figure 1, air-conditioning system of the present invention comprises the automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 that is driven by direct current generator, car outer air heat exchanger 3, air heat exchanger 7 in the car, liquid storage dryer 4, gas-liquid separator 8, low pressure choke valve 6, cooling compressor synergy mixes the gas system, by 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, two, three, four check valve 2-2,2-3,2-4,2-5, the system model switching device shifter that the first air-conditioning duct control valve 2-9 and the second air-conditioning duct control valve 2-10 form, and drive motors hydro-thermal recovery system; The mixed gas system of described cooling compressor synergy is comprised of the 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 described 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 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 counterpart 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 counterpart, 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 drive motors hydro-thermal recovery system comprise waste heat radiator 9 in the water-air double-sided cooled type motor waste heat cooling device, car, the outer waste heat radiator 11 of car, with car that the outer waste heat radiator of car matches outside waste heat radiator fan 12, by the waste heat recovery control device that the first waste heat recovery control valve 13-1 and the second waste heat recovery control valve 13-2 consist of, described water-air double-sided cooled type motor waste heat cooling device comprises external cooling jacket 10-1 and motor cooling water pump 10-2; 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, the car respectively by function control valve 2-1 and corresponding connecting line; Automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 air entry of described gas-liquid separator 8 outlet accesses; 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, and the 3rd check valve 2-4 outlet connects air heat exchanger 7 entrances and the 4th check valve 2-5 entrance in the 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; The first air-conditioning duct control valve 2-9 is installed in the air outlet place of air-conditioning duct in the car; The air inlet place of air-conditioning duct in the second air-conditioning duct control valve 2-10 car; Described drive motors hydro-thermal recovery system comprise waste heat radiator 9 in the water-air double-sided cooled type motor waste heat cooling device, car, the outer waste heat radiator 11 of car, with car that the outer waste heat radiator of car matches outside waste heat radiator fan 12, by the waste heat recovery control device that the first waste heat recovery control valve 13-1 and the second waste heat recovery control valve 13-2 consist of, described water-air double-sided cooled type motor waste heat cooling device comprises external cooling jacket 10-1 and motor cooling water pump 10-2; The outlet of wherein said electric machine external cooling jacket 10-1 connects motor cooling water pump 10-2 import, motor cooling water pump 10-2 outlet connects the first waste heat recovery control valve 13-1 import and the second waste heat recovery control valve 13-2 import, the first waste heat recovery control valve 13-1 outlet connects the import that is arranged in the interior air-conditioning duct of car and is installed in the interior waste heat radiator 9 of car of air heat exchanger air outlet one side in the car, 9 outlets of waste heat radiator connect electric machine external cooling jacket 10-1 import in the car, the second waste heat recovery control valve 13-2 outlet connects outer waste heat radiator 11 imports of car, and outer waste heat radiator 11 outlets of car connect electric machine external cooling jacket 10-1 import; Described automobile-used totally-enclosed frequency conversion type air conditioning compressor and direct current generator are enclosed in the same closed shell.
Mixed gas circulation (as shown in Figure 2), refrigerant liquid is divided into two-way after condenser flows out, and one the tunnel enters major cycle, through the heat exchange of overmulling gas heat exchanger, enters evaporimeter behind the low pressure choke valve, is sucked by the compressor air entry at last; Another road enters mixed gas circulation, enters mixed gas heat exchanger heat exchange behind overmulling moral stream valve, becomes gaseous state behind the cooling major cycle cold-producing medium, enters compressor by the mixed gas interface of compressor at last.Its principle is: fill into the refrigerant gas of a certain amount of a certain intermediate pressure by mixed air circuit to compressor centre position or suction location, to reach delivery temperature with compressor from T
e' be reduced to T
ePurpose, and can increase to a certain extent the capacity of compressor, thereby improve 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, so that increased from the caloric receptivity of outdoor Cryogenic air thermal source, thereby operational efficiency and the reliability of raising heat pump.
Such 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 28, motor 29, static vortex 30, moving vortex 31 and the mixed gas system of cooling synergy.Compressor housing 28 is provided with compressor air suction snap joint 32 and compressor air-discharging snap joint 33.The mixed gas system of cooling compressor synergy is comprised of the 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 described compressor air mixing machine structure is connected by the built-in gas mixed hole 25 of compressor, the built-in gas mixed hole interface channel 26 of compressor and with the built-in gas mixed hole interface channel of the compressor other end and the external snap joint 27 that is fixed on the 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 (such 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 the compressor suction duct or be connected with compressor suction duct by the fast three-way joint, make low pressure mix gas first and after compressor air suction mixes again compressed machine air entry enter the compressor air suction chamber.Described medium-pressure (such 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 25 of compressor is opened in the relevant position of compressor static vortex 30 and the first compression chamber counterpart and is connected with external snap joint 27 on being fixed on the compressor air-discharging cavity shell by the built-in gas mixed hole interface channel 26 of compressor.Described high pressure mixes gas (such as Fig. 6), and heat pump fluid enters 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 25 of compressor is opened in the relevant position of compressor static vortex 30 and the second compression chamber counterpart and is connected with external snap joint 27 on being fixed on the compressor air-discharging cavity shell by the built-in gas mixed hole interface channel 26 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 the restriction sleeve; Described mixed gas heat exchanger 5-2 is that reducing bushing formula, interval are board-like, in case tubular type or the shell and tube exchanger any one.
The automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 by the direct current generator driving described in the present invention is any one in piston type, vortex, the triangle rotor type compressor, and described automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 is enclosed in the same closed shell with direct current generator.
Shown in Fig. 7,8, described electric machine external cooling jacket 10-1 comprises closed water jacket inner casing 20, the closed water jacket shell 21 as motor housing and is connected to cooling water channel dividing plate 22 between the closed water jacket inside and outside shell, be provided with the some axial direct ribs 23 that consist of cooling air channel at closed water jacket inner casing 20 inwalls, in the ring cavity that is consisted of by some axial direct rib 23 inner faces, direct current generator is installed, axle head at motor shaft is equipped with built-in air-cooling fan 24, and jointly consists of electric machine built-in air cooling mechanism by axial direct rib 23 and built-in air-cooling fan 24.
Various mode of operation of the present invention is as follows:
Refrigeration mode:
As shown in Figure 9, 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, gas-liquid separator 8 entrances are communicated with air heat exchanger 7 another interfaces in the car; Mixed gas control valve 2-6 closes; Mixed gas heat exchanger bypass valve 2-7 opens; Defrost bypass valve 2-8 closes.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 in car outer air heat exchanger 3, the second check valve 2-3, liquid storage dryer 4, mixed gas heat exchanger bypass valve 2-7, low pressure choke valve 6, the 3rd check valve 2-4, the car 8, sucked from air entry by automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 successively.
Waste heat recovery control valve 13-1 closes, waste heat recovery control valve 13-2 opens, cooling water through external cooling jacket 10-1 outlet, motor cooling water pump 10-2, waste heat recovery control valve 13-2, the outer waste heat radiator 11 of car, is got back to external cooling jacket 10-1 through external cooling jacket 10-1 entrance successively.
Heating mode:
As shown in figure 10, 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 the car, 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.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 4th check valve 2-5, liquid storage dryer 4, mixed gas heat exchanger bypass valve 2-7, low pressure choke valve 6, the first check valve 2-2, car outer air heat exchanger 3, the gas-liquid separator 8 in the car, sucked from air entry by automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 successively.
Waste heat recovery control valve 13-1 opens, waste heat recovery control valve 13-2 closes, cooling water through waste heat radiator 9 in external cooling jacket 10-1 outlet, motor cooling water pump 10-2, waste heat recovery control valve 13-1, the car, is got back to external cooling jacket 10-1 through external cooling jacket 10-1 entrance successively.
Heat mixed gas pattern:
As shown in figure 11, 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 the car, 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.Cold-producing medium is discharged through automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 exhaust outlet, sucked from air entry by automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 behind valve 2-2, car outer air heat exchanger 3, gas-liquid separator 8 through air heat exchanger 7, the 4th check valve 2-5, liquid storage dryer 4, mixed gas heat exchanger 5-2, low pressure choke valve 6, first in the car successively; Another road 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 4th 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, the mixed gas check-valves 5-3 in the car, enter automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 from the mixed gas interface of compressor successively.
Waste heat recovery control valve 13-1 opens, waste heat recovery control valve 13-2 closes, cooling water through waste heat radiator 9 in external cooling jacket 10-1 outlet, motor cooling water pump 10-2, waste heat recovery control valve 13-1, the car, is got back to external cooling jacket 10-1 through external cooling jacket 10-1 entrance successively.
Vehicle window defrosting/demist pattern:
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, gas-liquid separator 8 entrances are communicated with air heat exchanger 7 another interfaces in the car; Mixed gas control valve 2-6 closes; Mixed gas heat exchanger bypass valve 2-7 opens; Defrost bypass valve 2-8 closes.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 in car outer air heat exchanger 3, the second check valve 2-3, liquid storage dryer 4, mixed gas heat exchanger bypass valve 2-7, low pressure choke valve 6, the 3rd check valve 2-4, the car 8, sucked from air entry by automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 successively.
Waste heat recovery control valve 13-1 opens, waste heat recovery control valve 13-2 closes, cooling water through waste heat radiator 9 in external cooling jacket 10-1 outlet, motor cooling water pump 10-2, waste heat recovery control valve 13-1, the car, is got back to external cooling jacket 10-1 through external cooling jacket 10-1 entrance successively.
Car outer air heat exchanger defrosting mode of operation:
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, gas-liquid separator 8 entrances are communicated with air heat exchanger 7 another interfaces in the car; Mixed gas control valve 2-6 closes; Mixed gas heat exchanger bypass valve 2-7 opens; Defrost bypass valve 2-8 opens.Cold-producing medium is discharged through automobile-used totally-enclosed frequency conversion type air conditioning compressor 1 exhaust outlet, successively through behind air heat exchanger 7, the gas-liquid separator in car outer air heat exchanger 3, the second check valve 2-3, liquid storage dryer 4, mixed gas heat exchanger bypass valve 2-7, low pressure choke valve 6 and defrost bypass valve 2-8, the 3rd check valve 2-4, the car 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 air heat exchanger 7 in car by defrost bypass valve 2-8 so that when air is through the interior air heat exchanger 7 of car in the car temperature near vehicle interior temperature.
Waste heat recovery control valve 13-1 opens, waste heat recovery control valve 13-2 closes, cooling water through waste heat radiator 9 in external cooling jacket 10-1 outlet, motor cooling water pump 10-2, waste heat recovery control valve 13-1, the car, is got back to external cooling jacket 10-1 through external cooling jacket 10-1 entrance successively.
Claims (3)
1. water heat recovery type electromobile heat pump air conditioning system, it is characterized in that: described air-conditioning system comprises the automobile-used totally-enclosed frequency conversion type air conditioning compressor (1) that is driven by direct current generator, car outer air heat exchanger (3), air heat exchanger (7) in the car, liquid storage dryer (4), gas-liquid separator (8), low pressure choke valve (6), by 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, two, three, four check valve (2-2,2-3,2-4,2-5), the system model switching device shifter that the first air-conditioning duct control valve (2-9) and the second air-conditioning duct control valve (2-10) form, and drive motors hydro-thermal recovery system; Wherein said automobile-used totally-enclosed frequency conversion type air conditioning compressor is made of compressor housing (28), motor (29), compressor static vortex (30), the mixed gas system of motor-driven vortex (31) and cooling compressor synergy that compresses; Compressor housing (28) is provided with compressor air suction snap joint (32) and compressor air-discharging snap joint (33); The mixed gas system of described cooling compressor synergy is comprised of the 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 described compressor air mixing machine structure 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 (25) 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 (25) of described medium-pressure mechanism is opened in the relevant position of compressor static vortex (30) and the first compression chamber counterpart, and is connected with external snap joint (27) on being fixed on the compressor air-discharging cavity shell by the built-in gas mixed hole interface channel of compressor (26); The built-in gas mixed hole of compressor (25) of described high pressure air mixing machine structure is opened in the relevant position of compressor static vortex (30) and the second compression chamber counterpart, and is connected with external snap joint (27) on being fixed on the compressor air-discharging cavity shell by the built-in gas mixed hole interface channel of compressor (26); 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 drive motors hydro-thermal recovery system comprises waste heat radiator (9) in the water-air double-sided cooled type motor waste heat cooling device, car, the outer waste heat radiator (11) of car, the outer waste heat radiator fan (12) of car that matches with the outer waste heat radiator of car, by the waste heat recovery control device of the first waste heat recovery control valve (13-1) and the second waste heat recovery control valve (13-2) formation, described water-air double-sided cooled type motor waste heat cooling device comprises electric machine external cooling jacket (10-1) and motor cooling water pump (10-2); 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) entrance 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 of mixed gas heat exchanger (5-2) connect, 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, and the 3rd check valve (2-4) outlet connects air heat exchanger (7) entrance and the 4th check valve (2-5) entrance in the 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; The first air-conditioning duct control valve (2-9) is installed in the air outlet place of air-conditioning duct in the car; The second air-conditioning duct control valve (2-10) is installed in the air inlet place of air-conditioning duct in the car; The outlet of described electric machine external cooling jacket (10-1) connects motor cooling water pump (10-2) import, motor cooling water pump (10-2) outlet connects the first waste heat recovery control valve (13-1) import and the second waste heat recovery control valve (13-2) import, the outlet of the first waste heat recovery control valve (13-1) connects the import that is arranged in the interior air-conditioning duct of car and is installed in the interior waste heat radiator (9) of car of air heat exchanger air outlet one side in the car, waste heat radiator (9) outlet connects electric machine external cooling jacket (10-1) import in the car, the outlet of the second waste heat recovery control valve (13-2) connects outer waste heat radiator (11) import of car, and outer waste heat radiator (11) outlet of car connects electric machine external cooling jacket (10-1) import.
2. water heat recovery type electromobile heat pump air conditioning system according to claim 1, it is characterized in that: described electric machine external cooling jacket (10-1) comprises the closed water jacket inner casing (20) as motor housing, closed water jacket shell (21) and be connected to cooling water channel dividing plate (22) between the closed water jacket inside and outside shell, be provided with the some axial direct ribs (23) that consist of cooling air channel at closed water jacket inner casing (20) inwall, direct current generator is installed in the ring cavity that is consisted of by some axial direct ribs (23) inner face, axle head at motor shaft is equipped with built-in air-cooling fan (24), and jointly consists of electric machine built-in air cooling mechanism by axial direct rib (23) and built-in air-cooling fan (24).
3. water heat recovery type electromobile heat pump air conditioning system according to claim 1 is characterized in that: in described car outer air heat exchanger, the car in air heat exchanger, the car waste heat radiator, the outer waste heat radiator of car be any one version in fin-tube type, the stacked or parallel flow heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102070575A CN102331045B (en) | 2011-07-23 | 2011-07-23 | Water heat recycling heat pump air-conditioning system for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102070575A CN102331045B (en) | 2011-07-23 | 2011-07-23 | Water heat recycling heat pump air-conditioning system for electric automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102331045A CN102331045A (en) | 2012-01-25 |
| CN102331045B true CN102331045B (en) | 2013-10-16 |
Family
ID=45482926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102070575A Active CN102331045B (en) | 2011-07-23 | 2011-07-23 | Water heat recycling heat pump air-conditioning system for electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102331045B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8948966B2 (en) * | 2012-03-02 | 2015-02-03 | Halla Climate Control Corporation | Heat pump system for vehicle and method of controlling the same |
| CN104121723B (en) * | 2013-04-25 | 2016-12-07 | 苏州昆拓热控系统股份有限公司 | Electric automobile heat recovery heat pump system |
| CN105890210B (en) * | 2016-06-01 | 2018-09-07 | 珠海格力电器股份有限公司 | A kind of high-temperature air conditioner unit |
| CN106004329B (en) * | 2016-06-17 | 2018-03-16 | 南方英特空调有限公司 | A kind of new-energy automobile super low temperature heat pump air conditioner system and control method |
| CN106515427B (en) * | 2016-12-30 | 2018-08-31 | 中原工学院 | A kind of whole pure electric vehicle multifunctional all heat management system |
| CN107399220A (en) * | 2017-07-18 | 2017-11-28 | 郴州市中马汽车空调有限公司 | A kind of super low temperature heat pump type electric automobile air conditioner |
| CN107401811A (en) * | 2017-07-26 | 2017-11-28 | 日照职业技术学院 | Air conditioner defrosting system for automobile |
| CN111845246A (en) * | 2019-04-30 | 2020-10-30 | 天津艾康尼克新能源汽车有限公司 | Preheating system of fresh air of air conditioner, electric automobile and preheating method |
| CN112297952A (en) * | 2019-07-30 | 2021-02-02 | 北京新能源汽车股份有限公司 | Energy control system, method and device and automobile |
| CN112248756B (en) * | 2020-11-12 | 2022-02-15 | 东北石油大学 | Control method and device for heat pump air conditioner, electronic device, storage medium and vehicle |
| CN114543390B (en) * | 2022-03-09 | 2023-12-08 | 南京天加环境科技有限公司 | Cooling water loop structure of gas heat pump and control method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1278492A (en) * | 1999-06-07 | 2001-01-03 | 三菱重工业株式会社 | Air-conditioner for vehicles |
| JP2003118355A (en) * | 2001-10-18 | 2003-04-23 | Japan Climate Systems Corp | Air conditioner for vehicle |
| GB2395776A (en) * | 2002-11-06 | 2004-06-02 | Denso Corp | Vehicle air conditioner having a refrigerant cycle with heating function |
| CN1539662A (en) * | 2003-03-17 | 2004-10-27 | Air conditioning system for vehicles | |
| CN1608878A (en) * | 2003-10-22 | 2005-04-27 | 株式会社电装 | Air conditioning system for motor vehicle |
| CN101101162A (en) * | 2007-08-01 | 2008-01-09 | 中原工学院 | Air-geothermal energy double heat source synchronization composite heat pump device |
| CN202338973U (en) * | 2011-07-23 | 2012-07-18 | 济源市贝迪地能中央空调设备有限公司 | Water heat recovery type electromobile heat pump air conditioning system |
-
2011
- 2011-07-23 CN CN2011102070575A patent/CN102331045B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1278492A (en) * | 1999-06-07 | 2001-01-03 | 三菱重工业株式会社 | Air-conditioner for vehicles |
| JP2003118355A (en) * | 2001-10-18 | 2003-04-23 | Japan Climate Systems Corp | Air conditioner for vehicle |
| GB2395776A (en) * | 2002-11-06 | 2004-06-02 | Denso Corp | Vehicle air conditioner having a refrigerant cycle with heating function |
| CN1539662A (en) * | 2003-03-17 | 2004-10-27 | Air conditioning system for vehicles | |
| CN1608878A (en) * | 2003-10-22 | 2005-04-27 | 株式会社电装 | Air conditioning system for motor vehicle |
| CN101101162A (en) * | 2007-08-01 | 2008-01-09 | 中原工学院 | Air-geothermal energy double heat source synchronization composite heat pump device |
| CN202338973U (en) * | 2011-07-23 | 2012-07-18 | 济源市贝迪地能中央空调设备有限公司 | Water heat recovery type electromobile heat pump air conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102331045A (en) | 2012-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102331045B (en) | Water heat recycling heat pump air-conditioning system for electric automobile | |
| CN102331050B (en) | Ultralow-temperature heat source and heat pump type air conditioning system for electric automobile | |
| CN110525168B (en) | New energy automobile secondary circuit passenger cabin and battery motor electric control heat management system | |
| CN102331048B (en) | Air conditioning system of combined-type gas-water dual-heat-source heat-pump-type electric automobile | |
| CN102331046B (en) | Combined gas-water dual-heat-source heat pump air-conditioning system for electric automobile | |
| CN202338973U (en) | Water heat recovery type electromobile heat pump air conditioning system | |
| CN103994598B (en) | Pure electric vehicle heat pump | |
| CN104786777B (en) | Full-electric vehicle heat pump air-conditioning system based on air compression and circulation | |
| CN107444071A (en) | Use CO2The pump type heat electric automobile air-conditioning system and its method of work of refrigerant | |
| CN102331047B (en) | Gas heat recycling heat pump air-conditioning system for electric automobile | |
| CN113173050B (en) | Thermal management system | |
| CN207156890U (en) | Use the pump type heat electric automobile air-conditioning system of CO2 refrigerants | |
| CN104930744A (en) | Pure electric vehicle heat pump air conditioner without external heat exchanger | |
| CN202229328U (en) | Ultralow temperature heat source heat pump type electromobile air-conditioning system | |
| KR101172542B1 (en) | Air Cycle for Car Air Conditioning System | |
| CN201163120Y (en) | Heat pump type cooling and warming air-conditioning unit for electric motor car | |
| CN113173049A (en) | Thermal management system | |
| CN113511043B (en) | Electric automobile thermal management system with double compressors | |
| CN202254031U (en) | Gas-heat recycling type heat pump air conditioner system for electric vehicle | |
| CN112339526B (en) | Heat accumulating type truck parking air conditioning system | |
| CN202350214U (en) | Combined gas-water double-heat source heat pump type air conditioner system for electric automobile | |
| CN202338974U (en) | Combined gas-water double heat source heat pump type electromobile air-conditioning system | |
| CN216683992U (en) | Transcritical carbon dioxide air conditioning system for electric bus | |
| CN201138023Y (en) | High-efficient multifunctional air conditioner device | |
| CN212796460U (en) | Thermal management system of electric vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HE NAN BEIDI NEW ENERGY REFRIGERATION INDUSTRY CO. Free format text: FORMER NAME: JIYUAN BEIDI UNDERGROUND ENERGY CENTRAL AIR CONDITIONING EQUIPMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 459000 No. 6, high tech industrial cluster, 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 |