CN110614899A - Dual-temperature-zone air conditioning device for electric passenger vehicle and operation method thereof - Google Patents
Dual-temperature-zone air conditioning device for electric passenger vehicle and operation method thereof Download PDFInfo
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- CN110614899A CN110614899A CN201910851848.8A CN201910851848A CN110614899A CN 110614899 A CN110614899 A CN 110614899A CN 201910851848 A CN201910851848 A CN 201910851848A CN 110614899 A CN110614899 A CN 110614899A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000005192 partition Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims description 40
- 230000009977 dual effect Effects 0.000 claims description 8
- 238000010792 warming Methods 0.000 claims description 3
- 238000011017 operating method Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
- B60H1/00835—Damper doors, e.g. position control
- B60H1/00842—Damper doors, e.g. position control the system comprising a plurality of damper doors; Air distribution between several outlets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
- B60H1/2218—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters controlling the operation of electric heaters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
- B60H1/2225—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters arrangements of electric heaters for heating air
Abstract
The invention provides a dual-temperature-zone air conditioning device for an electric passenger vehicle, which comprises a centrifugal blower, an air conditioning shell, an evaporator, an air source electric heater assembly, a temperature air door, a temperature partition plate and an air outlet, wherein the centrifugal blower is arranged on the air conditioning shell; the centrifugal blower, the evaporator, the air source electric heater assembly and the temperature air door are all installed inside the air conditioner shell, the temperature partition plate divides the air conditioner shell into a left air area and a right air area from the evaporator to the air outlet, the number of the air source electric heater assembly, the number of the temperature air door and the number of the air outlet are 2, and the number of the air source electric heater assembly, the number of the temperature air door and the number of the air outlet are respectively 1 in the left air area and the right air area. The invention also provides an operation method of the double-temperature-zone air conditioning device for the electric passenger vehicle. The temperature of the left air outlet and the temperature of the right air outlet can be independently adjusted, so that the comfort of the air conditioner of the electric passenger vehicle is improved, and the energy consumption of the air conditioner is reduced.
Description
Technical Field
The invention relates to the field of air conditioning devices, in particular to a dual-temperature-zone air conditioning device for an electric passenger vehicle and an operation method thereof.
Background
Two-temperature-zone air conditioning plant: the air outlet temperature of the left side and the right side of the air outlet of the air conditioner can be independently adjusted so as to meet the requirements of passengers with different physiques on comfort. The existing air conditioning device for the electric passenger vehicle generally adopts an air source electric heater to heat low-temperature air, controls the air outlet temperature by adjusting the power of the air source electric heater or a single temperature air door, has single output air outlet temperature, is difficult to meet the requirements of multiple passengers on comfort, and can cause unnecessary electric energy waste when a single passenger uses an air conditioner.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a dual-temperature-zone air conditioning device for an electric passenger vehicle and an operation method thereof.
According to one aspect of the invention, a dual-temperature-zone air conditioning device for an electric passenger vehicle is provided, which comprises a centrifugal blower (1), an air conditioning shell (2), an evaporator (3), an air source electric heater assembly (4), a temperature air door (5), a temperature partition plate (6) and an air outlet (7); centrifugal blower (1), evaporimeter (3), air source electric heater subassembly (4) and temperature air door (5) all install the inside in air conditioner casing (2), temperature partition board (6) are two air regions about with air conditioner casing (2) from the regional division between evaporimeter (3) to air outlet (7), air source electric heater subassembly (4), temperature air door (5), air outlet (7) all are equipped with 2, and are equipped with 1 respectively in two air regions about. The separation into left and right air zones ensures independence of left and right temperature control.
Preferably, the left and right air regions are a left air region and a right air region, respectively.
Preferably, the air source electric heater assembly (4) comprises a heating core body (41) and a control module (42), the heating core body (41) comprises a left heating core body (411) and a right heating core body (412), the control module (42) comprises a left control module (421) and a right control module (422), the left control module (421) and the right control module (422) respectively control the power of the left heating core body (411) and the right heating core body (412), the left control module (421) and the left heating core body (411) are arranged in a left air area, and the right control module (422) and the right heating core body (412) are arranged in a right air area.
Preferably, the left control module (421) and the right control module (422) are respectively arranged on the upper end surface and the lower end surface of the air-conditioning casing (2), or on the front end surface and the rear end surface of the air-conditioning casing (2). The integration of the air source electric heater assembly (4) is facilitated, so that the cost of parts is saved, and the volume of the air conditioning device is reduced.
Preferably, the temperature air door (5) comprises a left temperature air door (51) and a right temperature air door (52), the left temperature air door (51) and the right temperature air door (52) are respectively arranged in the left air area and the right air area, and the opening and the closing of the cold air channel (8) and the hot air channel (9) are adjusted and controlled through an external execution mechanism.
Preferably, the number of the cold air channels (8) and the number of the hot air channels (9) are 2, each cold air channel (8) comprises a left cold air channel and a right cold air channel, each hot air channel (9) comprises a left hot air channel and a right hot air channel, the left cold air channel and the left hot air channel are arranged in a left air area, and the right cold air channel and the right hot air channel are arranged in a right air area.
Preferably, the air outlet (7) comprises a left air outlet (71) and a right air outlet (72), the left air outlet (71) is arranged at the air outlets of the left cold air channel and the left hot air channel, and the right air outlet (72) is arranged at the air outlets of the right cold air channel and the right hot air channel.
In order to achieve the above object, the present invention further provides an operating method of a dual temperature zone air conditioning device for an electric passenger vehicle, comprising the steps of:
step one, natural wind or cold wind enters the interior of an air conditioner shell (2) through a centrifugal blower (1), and respectively enters a left air area and a right air area after passing through an evaporator (3);
step two, the external actuating mechanism respectively controls the angles of a left temperature air door (51) and a right temperature air door (52) in the left air area and the right air area, natural wind or cold wind entering the left air area and the right air area is divided in proportion, part of proportion of the natural wind or the cold wind in the left air area flows out from a left cold wind channel to become first cold wind, and part of proportion of the natural wind or the cold wind in the right air area flows out from a right cold wind channel to become second cold wind;
step three, heating and warming partial proportion of natural wind or cold wind in the left air area through a left heating core (411) to become first hot wind, and then flowing out of a left hot wind channel; part of the natural wind or cold wind in the right air area is heated and heated by the right heating core (412) and changed into second hot wind, and then the second hot wind flows out of the right hot wind channel;
mixing the first cold air and the first hot air in the left air area above a left temperature air door (51) to form first temperature air, and enabling the first temperature air to flow out of a left air outlet (71); and second cold air and second hot air in the right air area are mixed above the right temperature air door (52) to form second temperature air, and the second temperature air flows out of the right air outlet (72).
Preferably, half of the natural or cool air from the evaporator (3) enters the left air region and half enters the right air region.
Preferably, the temperatures of the first temperature wind and the second temperature wind are the same or different, and when the temperatures of the first temperature wind and the second temperature wind are different, two temperature zones are formed in two areas of the passenger car; the temperature of the first temperature wind is the same as that of the second temperature wind, and the same temperature areas are formed in the two areas of the passenger car. When the air conditioner is used by passengers in a single area, the heating core body and the temperature air door in one area can be controlled to work through the control module and the external actuating mechanism, and unnecessary electric energy waste is reduced.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention relates to a dual-temperature-zone air conditioning device for an electric passenger vehicle and an operation method thereof, wherein the left air outlet temperature and the right air outlet temperature can be independently adjusted, so that the comfort of an air conditioner of the electric passenger vehicle is improved, and the energy consumption of the air conditioner is reduced
(2) The invention relates to a dual-temperature-zone air conditioning device for an electric passenger vehicle and an operation method thereof.A air source electric heater consists of a left heating core body, a right heating core body, a left control module and a right control module, and the left control module and the right control module are respectively adjusted to realize different outputs of left air temperature and right air temperature, so that different temperature wind at a left air outlet and a right air outlet is obtained, and the requirements of passengers in different areas in the vehicle on different temperatures are met;
(3) the invention relates to a dual-temperature-zone air conditioning device for an electric passenger vehicle and an operation method thereof.A temperature air door consists of a left temperature air door and a right temperature air door, and the angles of the left temperature air door and the right temperature air door are respectively controlled through an external execution mechanism so as to adjust the proportion of cold air and hot air and realize different temperature air control of a left air outlet and a right air outlet;
(4) according to the dual-temperature-zone air conditioning device for the electric passenger vehicle and the operation method thereof, when a passenger in a single zone uses the air conditioner, the heating core and the temperature air door in one zone can be controlled to work through the control module and the external execution mechanism, so that unnecessary electric energy waste is reduced;
(5) the invention relates to a dual-temperature-zone air conditioning device for an electric passenger vehicle and an operation method thereof, which have the advantages of simple structure, ingenious design and obvious effect;
(6) the dual-temperature-zone air conditioning device for the electric passenger vehicle and the operation method thereof are easy to process and assemble, low in cost, high in practicability and suitable for large-scale popularization.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural view of a dual temperature zone air conditioning unit for an electric passenger vehicle;
fig. 2 is a schematic structural view of a section a-a in fig. 1.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
Examples
The embodiment provides a dual-temperature-zone air conditioning device for an electric passenger vehicle, which is shown in the following detailed structural drawings 1 and 2: the air conditioner comprises a centrifugal blower 1, an air conditioner shell 2, an evaporator 3, an air source electric heater assembly 4, a temperature air door 5, a temperature partition plate 6 and an air outlet 7; the air conditioner is characterized in that the centrifugal blower 1, the evaporator 3, the air source electric heater assembly 4 and the temperature air door 5 are all installed inside the air conditioner shell 2, the air conditioner shell 2 is divided into a left air area and a right air area from the evaporator 3 to the air outlet 7 through the temperature partition plate 6, the air source electric heater assembly 4, the temperature air door 5 and the air outlet 7 are all provided with 2 air areas, and the number of the air area is 1 respectively in the left air area and the right air area. The separation into left and right air zones ensures independence of left and right temperature control.
Further, the left air area and the right air area are respectively a left air area and a right air area.
Further, the air source electric heater assembly 4 includes a heating core 41 and a control module 42, the heating core 41 includes a left heating core 411 and a right heating core 412, the control module 42 includes a left control module 421 and a right control module 422, the left control module 421 and the right control module 422 respectively control the power of the left heating core 411 and the right heating core 412, the left control module 421 and the left heating core 411 are disposed in the left air region, and the right control module 422 and the right heating core 412 are disposed in the right air region.
Further, the left control module 421 and the right control module 422 are respectively disposed on the upper and lower end surfaces of the air conditioning casing 2, or the front and rear end surfaces of the air conditioning casing 2. So as to be beneficial to the integration of the air source electric heater assembly 4, thereby saving the cost of parts and reducing the volume of the air conditioning device.
Further, the temperature damper 5 includes a left temperature damper 51 and a right temperature damper 52, the left temperature damper 51 and the right temperature damper 52 are respectively disposed in the left air region and the right air region, and are respectively adjusted and controlled by an external actuator to open and close the cold air passage 8 and the hot air passage 9.
Furthermore, the number of the cold air channels 8 and the number of the hot air channels 9 are 2, each cold air channel 8 comprises a left cold air channel and a right cold air channel, each hot air channel 9 comprises a left hot air channel and a right hot air channel, the left cold air channel and the left hot air channel are arranged in the left air area, and the right cold air channel and the right hot air channel are arranged in the right air area.
Further, the air outlet 7 includes a left air outlet 71 and a right air outlet 72, the left air outlet 71 is disposed at the air outlets of the left cold air channel and the left hot air channel, and the right air outlet 72 is disposed at the air outlets of the right cold air channel and the right hot air channel.
The embodiment also provides an operation method of the dual-temperature-zone air conditioning device for the electric passenger vehicle, which comprises the following steps:
step one, natural wind or cold wind enters the interior of an air conditioner shell 2 through a centrifugal blower 1, and respectively enters a left air area and a right air area after passing through an evaporator 3;
step two, the external actuating mechanism respectively controls the angles of a left temperature air door 51 and a right temperature air door 52 in the left air area and the right air area, natural wind or cold wind entering the left air area and the right air area is divided in proportion, partial proportion of the natural wind or cold wind in the left air area flows out from a left cold wind channel to become first cold wind, and partial proportion of the natural wind or cold wind in the right air area flows out from a right cold wind channel to become second cold wind;
step three, heating and warming partial proportion of natural wind or cold wind in the left air area through the left heating core 411 to become first hot wind, and then flowing out of the left hot wind channel; part of the natural wind or cold wind in the right air area is heated and heated by the right heating core 412, and flows out of the right hot wind channel after being changed into second hot wind;
step four, mixing the first cold air and the first hot air in the left air area above the left temperature air door 51 to form first temperature air, and flowing out of the left air outlet 71; the second cold air and the second hot air in the right air area are mixed above the right temperature air door 52 to form second temperature air, and the second temperature air flows out of the right air outlet 72.
Further, half of the natural or cool air from the evaporator 3 enters the left air region and half enters the right air region.
Further, the temperatures of the first temperature wind and the second temperature wind are the same or different, and when the temperatures of the first temperature wind and the second temperature wind are different, two temperature zones are formed in two areas of the passenger car; the temperature of the first temperature wind is the same as that of the second temperature wind, and the same temperature areas are formed in the two areas of the passenger car. When the air conditioner is used by passengers in a single area, the heating core body and the temperature air door in one area can be controlled to work through the control module and the external actuating mechanism, and unnecessary electric energy waste is reduced.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (10)
1. A dual-temperature-zone air conditioning device for an electric passenger vehicle is characterized by comprising a centrifugal blower (1), an air conditioning shell (2), an evaporator (3), an air source electric heater assembly (4), a temperature air door (5), a temperature partition plate (6) and an air outlet (7); centrifugal blower (1), evaporimeter (3), air source electric heater subassembly (4) and temperature air door (5) all install the inside in air conditioner casing (2), temperature partition board (6) are two air regions about with air conditioner casing (2) from the regional division between evaporimeter (3) to air outlet (7), air source electric heater subassembly (4), temperature air door (5), air outlet (7) all are equipped with 2, and are equipped with 1 respectively in two air regions about.
2. The dual temperature zone air conditioning device for electric passenger vehicles according to claim 1, wherein the left and right air zones are a left air zone and a right air zone, respectively.
3. The dual temperature zone air conditioning device for electric passenger vehicles according to claim 2, wherein the air source electric heater assembly (4) comprises a heating core (41) and a control module (42), the heating core (41) comprises a left heating core (411) and a right heating core (412), the control module (42) comprises a left control module (421) and a right control module (422), the left control module (421) and the right control module (422) respectively control the power of the left heating core (411) and the right heating core (412), the left control module (421) and the left heating core (411) are disposed in the left air zone, and the right control module (422) and the right heating core (412) are disposed in the right air zone.
4. The dual temperature zone air conditioning device for electric passenger vehicles according to claim 3, wherein the left control module (421) and the right control module (422) are respectively disposed at the upper and lower end surfaces of the air conditioning case (2) or the front and rear end surfaces of the air conditioning case (2).
5. The dual-temperature-zone air conditioning device for the electric passenger vehicle as claimed in claim 2, wherein the temperature damper (5) comprises a left temperature damper (51) and a right temperature damper (52), the left temperature damper (51) and the right temperature damper (52) are respectively arranged in the left air area and the right air area, and the opening and closing of the cold air channel (8) and the hot air channel (9) are respectively regulated and controlled through an external actuator.
6. The dual-temperature-zone air conditioning device for the electric passenger vehicle as claimed in claim 5, wherein there are 2 cold air channels (8) and 2 hot air channels (9), the cold air channel (8) comprises a left cold air channel and a right cold air channel, the hot air channel (9) comprises a left hot air channel and a right hot air channel, the left cold air channel and the left hot air channel are arranged in a left air zone, and the right cold air channel and the right hot air channel are arranged in a right air zone.
7. The dual-temperature-zone air conditioning device for the electric passenger vehicle as claimed in claim 6, wherein the air outlet (7) comprises a left air outlet (71) and a right air outlet (72), the left air outlet (71) is arranged at the air outlets of the left air cooling channel and the left air heating channel, and the right air outlet (72) is arranged at the air outlets of the right air cooling channel and the right air heating channel.
8. An operation method of a dual temperature zone air conditioning device for an electric passenger vehicle is characterized by comprising the following steps:
step one, natural wind or cold wind enters the interior of an air conditioner shell (2) through a centrifugal blower (1), and respectively enters a left air area and a right air area after passing through an evaporator (3);
step two, the external actuating mechanism respectively controls the angles of a left temperature air door (51) and a right temperature air door (52) in the left air area and the right air area, natural wind or cold wind entering the left air area and the right air area is divided in proportion, part of proportion of the natural wind or the cold wind in the left air area flows out from a left cold wind channel to become first cold wind, and part of proportion of the natural wind or the cold wind in the right air area flows out from a right cold wind channel to become second cold wind;
step three, heating and warming partial proportion of natural wind or cold wind in the left air area through a left heating core (411) to become first hot wind, and then flowing out of a left hot wind channel; part of the natural wind or cold wind in the right air area is heated and heated by the right heating core (412) and changed into second hot wind, and then the second hot wind flows out of the right hot wind channel;
mixing the first cold air and the first hot air in the left air area above a left temperature air door (51) to form first temperature air, and enabling the first temperature air to flow out of a left air outlet (71); and second cold air and second hot air in the right air area are mixed above the right temperature air door (52) to form second temperature air, and the second temperature air flows out of the right air outlet (72).
9. Method for operating a dual-temperature-zone air conditioning unit for electric passenger vehicles according to claim 8, characterized in that half of the natural or cool air coming out of the evaporator (3) enters the left air region and half enters the right air region.
10. The operating method of a dual temperature zone air conditioner for electric passenger vehicles according to claim 8, wherein the temperatures of the first temperature wind and the second temperature wind are the same or different, and when the temperatures of the first temperature wind and the second temperature wind are different, dual temperature zones are formed in two areas of the passenger vehicle; the temperature of the first temperature wind is the same as that of the second temperature wind, and the same temperature areas are formed in the two areas of the passenger car.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910851848.8A CN110614899A (en) | 2019-09-10 | 2019-09-10 | Dual-temperature-zone air conditioning device for electric passenger vehicle and operation method thereof |
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| CN201910851848.8A CN110614899A (en) | 2019-09-10 | 2019-09-10 | Dual-temperature-zone air conditioning device for electric passenger vehicle and operation method thereof |
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| CN109291763A (en) * | 2018-11-15 | 2019-02-01 | 珠海格力电器股份有限公司 | A kind of heat pump air conditioning system and its control method and automobile |
| CN109606062A (en) * | 2018-12-20 | 2019-04-12 | 浙江合众新能源汽车有限公司 | A kind of energy-efficient dual temperature area automatic air condition and its working method |
| CN210617793U (en) * | 2019-09-10 | 2020-05-26 | 泰铂（上海）环保科技股份有限公司 | Double-temperature-zone air conditioning device for electric passenger vehicle |
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Application publication date: 20191227 |