KR20150096830A - Air conditioner for vehicle - Google Patents

Air conditioner for vehicle Download PDF

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Publication number
KR20150096830A
KR20150096830A KR1020140017609A KR20140017609A KR20150096830A KR 20150096830 A KR20150096830 A KR 20150096830A KR 1020140017609 A KR1020140017609 A KR 1020140017609A KR 20140017609 A KR20140017609 A KR 20140017609A KR 20150096830 A KR20150096830 A KR 20150096830A
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KR
South Korea
Prior art keywords
air
passage
dehumidification
dehumidifying
heat exchanger
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Application number
KR1020140017609A
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Korean (ko)
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KR102056790B1 (en
Inventor
김태완
김인혁
정재환
공태윤
서용은
서정훈
Original Assignee
한온시스템 주식회사
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Priority to KR1020140017609A priority Critical patent/KR102056790B1/en
Publication of KR20150096830A publication Critical patent/KR20150096830A/en
Application granted granted Critical
Publication of KR102056790B1 publication Critical patent/KR102056790B1/en

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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
    • B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/04—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant
    • B60H1/08—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant from other radiator than main radiator
    • B60H1/10—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant from other radiator than main radiator the other radiator being situated in a duct capable of being connected to atmosphere outside vehicle
    • B60H1/12—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant from other radiator than main radiator the other radiator being situated in a duct capable of being connected to atmosphere outside vehicle using an air blower
    • 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
    • B60H3/00—Other air-treating devices
    • B60H3/02—Moistening ; Devices influencing humidity levels, i.e. humidity control
    • B60H3/024—Moistening ; Devices influencing humidity levels, i.e. humidity control for only dehumidifying the air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
    • F24F3/1423—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with a moving bed of solid desiccants, e.g. a rotary wheel supporting solid desiccants
    • 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
    • B60H3/00—Other air-treating devices
    • B60H3/02—Moistening ; Devices influencing humidity levels, i.e. humidity control
    • B60H2003/028—Moistening ; Devices influencing humidity levels, i.e. humidity control the devices comprising regeneration means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/1458—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification using regenerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1032—Desiccant wheel

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)

Abstract

The present invention relates to an air conditioning device for a vehicle. More specifically, a dehumidification duct, which has a dehumidification rotor therein, is provided between a blower and an air inlet of an air conditioning case; and a cooling means (sensible heat exchanger) cooling an air passing through the dehumidification rotor installed in order to enable the air of which temperature is increased while the air passes through the dehumidification rotor to be cooled through the cooling means to improve a cooling performance during a maximum cooling mode.

Description

TECHNICAL FIELD [0001] The present invention relates to an air conditioner for an automobile,

The present invention relates to a vehicle air conditioner, and more particularly, to a vehicular air conditioner having a dehumidifying duct in which a dehumidifying rotor is interposed between an air inlet of an air conditioner case and a blower, Exchanger) installed in the vehicle.

Generally, the air conditioner for a vehicle is an automobile interior which is installed for the purpose of securing the front and rear view of the driver by removing the casting which is to be cooled or heated in the summer or winter season, or in case of rain or windshield during rainy or winter season Such an air conditioner is usually equipped with a heating device and a cooling device at the same time, and selectively introduces outside air or indoor air, and then the air is heated or cooled to blow air into the inside of the vehicle.

According to the independent structure of the blower unit, the evaporator unit, and the heater core unit, the air conditioner includes a three-piece type in which the three units are independently provided, and an evaporator unit and a heater core unit, And a center mounting type in which all of the three units are incorporated in an air conditioning case can be categorized into a semi-center type in which a fan unit is installed as a separate unit, and a center mounting type in which all the three units are incorporated in an air conditioning case.

Recently, so-called left and right independent air conditioners have been applied, in which air is supplied to the driver's seat and the passenger's seat at different temperatures according to the needs of the passengers, so that individual cooling and heating is performed.

FIG. 1 is a configuration diagram showing a conventional air conditioner for an automotive air conditioner. The air conditioner 1 includes an air inlet 11 formed at one side thereof and a defrost vent (not shown) 12, a face vent 13, and a floor vent 14 are formed; An evaporator (2) and a heater core (3) provided on the air passage in the air conditioning case (10) at regular intervals in order; And an air blowing device 20 connected to the air inlet 11 of the air conditioning case 10 to blow indoor air or outdoor air.

Between the evaporator 2 and the heater core 3 is disposed a temperature control door for regulating the opening of the cold air passage for bypassing the heater core 3 and the opening of the hot air passage passing through the heater core 3, (15).

In addition, the mode door 16 performs various air discharging modes (vent mode, bi-level mode, floor mode, mix mode, and defrost mode) while adjusting the opening of the corresponding vent.

According to the vehicle air conditioner 1 configured as described above, when the maximum cooling mode is activated, the temperature control door 15 opens the cold air passage and closes the warm air passage. Thus, the air blown by the blower 20 is exchanged with the refrigerant flowing in the evaporator 2 through the evaporator 2 to be changed into a cool air, and then the air is blown into a predetermined air discharge mode The indoor air is discharged through the vent opened by the mode door 16 in accordance with the level mode, the floor mode, the mix mode, and the defrost mode), thereby cooling the interior of the vehicle.

Also, when the maximum heating mode is activated, the temperature control door 15 closes the cold air passage and opens the hot air passage. The air blown by the blower 20 passes through the evaporator 2 and then flows through the heater core 3 through the hot air passage to be heat-exchanged with the cooling water flowing in the heater core 3, The air is discharged to the inside of the vehicle through a vent opened by the mode door 16 in accordance with a predetermined air discharge mode, thereby heating the interior of the vehicle.

In the air conditioner 1, the evaporator 2 functions to cool the passenger compartment, and when the surface temperature of the evaporator 2 falls below the dew point of the room air, the air discharged through the evaporator 2 The dehumidifying action for removing the moisture in the air is also performed.

The cooling load of the evaporator (2) is composed of a latent heat load related to the difference between the dry bulb temperature of the inflow air and a latent heat load related to the humidity difference. When the outdoor air of high temperature and high humidity enters the room, The cooling efficiency is largely lowered due to the large latent heat load.

As described above, in the conventional air conditioner (1), when the air conditioner operates in an environment of high humidity, the air containing a large amount of moisture passes through the evaporator (2) When the refrigerant passes through the evaporator 2 and flows into the room while being cooled, there is a problem that the comfort of the inside of the room is lowered.

In order to solve the above problem, an air conditioner having a dehumidification rotor 45 for dehumidification has recently been developed.

2, a dehumidification passage 44 and a regeneration passage 43 are formed between the blower 30 and the evaporator 41 in the air conditioning case 40. As shown in FIG. And a regenerative heater 46 is installed in the regeneration passageway 44 in front of the dehumidification rotor 45. The regeneration passageway 44 is provided on the regeneration passageway 43, It is.

At this time, the discharge port 44a of the regeneration passageway 44 extends in the vehicle outward direction, so that all air passing through the regeneration passageway 44 is discharged to the outside of the vehicle.

Thereafter, when dehumidification is required, the regenerative heater 46 is activated at the same time that the dehumidification rotor 45 rotates.

Part of the air that has passed through the fan 30 flows through the dehumidification rotor 45 located at the dehumidification passage 43 side and flows into the evaporator 41 in a state where the moisture is removed. 41, and is selectively supplied to the interior of the vehicle after passing through the heater core 42.

The other part of the air that has passed through the air blowing device 30 flows into the regeneration passage 44 and is then heated by the regeneration heater 46 to be supplied to the dehumidifying rotor 45 ) Region,

At this time, since the dehumidification rotor 45 in a state where the moisture is adsorbed in the dehumidification passage 43 is rotated toward the regeneration passage 44, the air heated by the regenerative heater 46 is returned to the dehumidification rotor 45 , The moisture adsorbed on the dehumidification rotor 45 is forcibly evaporated and then discharged to the outside through the discharge port 44a of the regeneration passage 44. [

Through the above process, the surface of the dehumidification rotor 45 is regenerated in its original dry state and becomes dehumidified again.

FIG. 3 is a view showing a change in the state quantity of the air passing through the dehumidification rotor during dehumidification air conditioning. The change in the state quantity of the air passing through the dehumidification rotor 45 is expressed by the arrow A as the absolute humidity decreases along the isenthalpic line The temperature of the air must rise, but the change in the state of the actual air causes the enthalpy to rise due to the irreversibility of the system as shown by the arrow B.

That is, there is no heat exchange when the air passes through the dehumidification rotor 45, but the temperature of the air is increased by the amount of water dehumidified in the process of separating moisture in the air through the dehumidifying rotor 45, This causes a problem of deteriorating the cooling performance in the maximum cooling mode.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the aforementioned problems, and it is an object of the present invention to provide an air conditioning system comprising a dehumidifying duct in which a dehumidifying rotor is interposed between a blower and an air inlet of an air conditioning case, The present invention also provides a vehicle air conditioner capable of improving the cooling performance in the maximum cooling mode by cooling the air whose temperature has risen while passing through the dehumidification rotor through the cooling means.

According to an aspect of the present invention, there is provided an air conditioner comprising: an air blowing device having a blowing fan therein; an air inlet formed at one side thereof to allow air blown from the blowing device to flow therethrough, And a heat exchanger provided inside the air conditioning case, wherein the air conditioning case is connected to the air inlet of the air conditioning case and the air blowing device, and the air blowing device blows air from the air blowing device A dehumidifying duct in which a dehumidifying passage through which air flows and a regeneration passage are formed so as to allow air that has passed through the dehumidifying passage to flow into the air inlet port side and a dehumidifying duct which is rotatably installed inside the dehumidifying duct, And the other part is disposed so as to be disposed on the regeneration passage side so as to flow in the dehumidifying passage Installed between the dehumidification rotor and a dehumidifying rotor and the air inlet of the dehumidifier for dehumidifying the air duct, and is characterized in that made in a cooling means for cooling the air flowing in the dehumidifying passage through the dehumidification rotor.

The present invention is characterized in that a dehumidifying duct having a dehumidifying rotor is interposed between the air blowing device and the air inlet of the air conditioning case and a cooling means (sensible heat exchanger) for cooling the air passing through the dehumidifying rotor is provided, The air having increased in temperature is cooled through the cooling means, so that the cooling performance in the maximum cooling mode can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a configuration diagram showing a conventional automotive air conditioner,
2 is a structural view showing an air conditioner having a conventional dehumidification rotor,
3 is a view showing a humidifier diagram showing a change in state of air passing through a dehumidification rotor in the conventional dehumidifying air conditioning system
FIG. 4 is a schematic view showing a vehicle air conditioning system according to the present invention,
5 is a diagram showing a maximum cooling mode of the automotive air conditioner according to the present invention,
6 is a view showing a maximum heating mode of the automotive air conditioner according to the present invention,
7 is a view showing the air temperature at the front and rear ends of the dehumidifying rotor and the air temperature at the rear end of the sensible heat exchanger in the automotive air conditioner according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in the figure, a vehicle air conditioning system 100 according to the present invention includes an air blowing device 130 having a blowing fan 138 therein, and an air blowing device 130 having air blowing device 130 for blowing air blown from the blowing device 130 to one side thereof. An air conditioner case 110 having an inlet 111 and a plurality of air outlets for discharging inflow air on the other side and a cold air passage and a hot air passage on the air passage inside the air conditioner case 110; And a heat exchanger installed in the heat exchanger.

The heat exchanger includes an evaporator 101 and a heater core 102, which are installed inside the air conditioning case 110 at a predetermined distance from each other.

The evaporator 101 is installed on the cold air passage side in the air conditioning case 110, and the heater core 102 is installed on the hot air passage side.

A cool air passage for bypassing the heater core 102 and a temperature control door 115 for controlling the opening degree of the hot air passage passing through the heater core 102 are provided between the evaporator 101 and the heater core 102 Respectively.

The air blowing device 130 includes an intake duct 134 in which an inner and outer air inflow ports 131 and 132 are formed at an upper portion and an inside and outside air switching door 133 is installed to open and close the inside and outside air inflow ports 131 and 132, And a scroll case 136 coupled to a lower portion of the intake duct 134 and having a blowing fan 138 installed therein.

A discharge portion 137 is formed at one side of the scroll case 136 so that the air blown by the blowing fan 138 can be blown toward the air inlet 111 of the air conditioning case 110.

A filter 135 is installed on the upper portion (upstream side) of the blowing fan 138 in the air blowing device 130 to prevent foreign substances from entering the dehumidifying rotor 124 to be described later.

The filter 135 is inserted between the intake duct 134 and the scroll case 136.

The filter 135 prevents foreign matter from flowing into the dehumidifying rotor 124, thereby improving the efficiency and durability of the dehumidifying material (not shown) in the dehumidifying rotor 124. That is, when foreign matter smaller than moisture passes through the surface of the dehumidifying member, the dehumidifying performance is lowered. Therefore, such foreign matter is primarily removed from the filter 135.

Further, a blower driving unit 138a is provided on one side of the blower 130 to drive the blower 138. The blower driver 138a is preferably a motor.

A plurality of air outlets formed on the outlet side of the air conditioner case 110 include a defrost vent 112 for discharging air toward the windshield of the vehicle and a face vent for discharging air toward the face of the occupant of the front seat A floor vent 114 for discharging air to the foot of a passenger is formed.

A plurality of mode doors 116 are installed in the air conditioning case 110 to open and close the defrost vent 112, the face vent 113 and the floor vent 114, respectively.

A drain port (not shown) is formed in the lower portion of the air conditioner case 110 to discharge condensed water generated from the surface of the evaporator 101 to the outside of the vehicle.

A dehumidifying duct 120 is connected between the air inlet 111 of the air conditioning case 110 and the blower 130.

The dehumidifying duct 120 has a dehumidifying passage 121 formed at one side of the partition wall 123 formed therein and a regeneration passage 122 formed at the other side of the dehumidifying duct 120, Air flows into the dehumidification passage 121 and the regeneration passage 122. [

The dehumidification passage 121 is formed to communicate the discharge section 137 of the fan apparatus 130 with the air inlet port 111 and the regeneration passage 122 is connected to the discharge port 130 of the blowing apparatus 130 And is configured to communicate the portion 137 with the outside.

Therefore, the air passing through the dehumidification passage 121 flows into the air inlet 111 of the air conditioner case 110.

The partition wall 123 is formed so as to divide the interior of the dehumidifying duct 120 upward and downward so that the dehumidification passage 121 is formed on the upper portion of the partition wall 123 and the regeneration passage 122 Is formed in the lower portion of the partition wall 123. [

Although the dehumidification passage 121 and the regeneration passage 122 are shown to be the same size for the sake of convenience, the partition wall 123 is preferably formed such that the dehumidification passage 121 is larger than the regeneration passage 122 Do. That is, only the air passing through the dehumidification passage 121 of the dehumidifying duct 120 of the air blown from the air blowing device 130 flows into the air inlet 111 of the air conditioning case 110, It is necessary to form the regeneration passage 122 larger than the regeneration passage 122 to increase the air volume in the maximum cooling mode and improve the cooling performance.

The dehumidifying duct 120 may be separately manufactured and assembled between the discharging portion 137 of the air blowing device 130 and the air inlet 111 of the air conditioning case 110. Alternatively, Or may be integrally formed with the air inlet 111 of the air conditioner case 110. In addition,

A dehumidifying rotor 124 is rotatably installed in the dehumidifying duct 120. A part of the dehumidifying rotor 124 is disposed on the dehumidification passage 121 side and a part of the dehumidifying rotor 124 is disposed on the regeneration passage 122, And the air flowing in the dehumidification passage 121 is dehumidified.

That is, since the dehumidification rotor 124 is installed through the partition wall 123, a part of the dehumidification rotor 124 is disposed on the dehumidification passage 121 side and the rest is disposed on the regeneration passage 122 side .

In addition, the dehumidifying rotor 124 is provided with a dehumidifying material to absorb the moisture contained in the passing air.

The dehumidification rotor 124 is formed in a cylindrical shape and is rotatably installed on the side of the partition wall 123 in the dehumidifying duct 120. At this time, a supporting bracket (not shown) may be formed on the partition wall 123 to rotatably support the dehumidifying rotor 124.

In addition, a motor (not shown) is installed inside the dehumidifying duct 120 to rotate the dehumidifying rotor 124.

That is, after the motor is fixed to the partition wall 123, the rotation shaft of the motor is directly coupled to the center of the dehumidification rotor 124 Or the motor may be installed on the inner wall surface of the dehumidifying duct 120, and then the motor and the dehumidification rotor 124 may be connected by a belt. Alternatively, the rotation shaft of the motor and the dehumidification rotor 124 The outer circumferential surface can be connected by gearing.

A heating means for heating the air flowing in the regeneration passage 122 and drying and regenerating the regeneration passage 122 side of the regeneration passage 122 is provided on the upstream side of the dehumidification rotor 124 in the regeneration passage 122. [ Respectively.

That is, since the dehumidification rotor 124 continuously rotates between the dehumidification passage 121 and the regeneration passage 122, a portion adsorbing moisture through the dehumidification passage 121 passes through the regeneration passage 122 And is regenerated by the heating means.

More specifically, a part of the air blown from the air blowing device 130 flows into the dehumidification passage 121 while moisture contained in the air is adsorbed by the dehumidification rotor 124 to be dehumidified, (122) and heated by the heating means. At this time, the heated air passes through the surface of the dehumidification rotor 124 rotated by the regeneration passage 122 in a state of adsorbing moisture in the dehumidification passage 121, and in this process, Thereby forcibly evaporating the moisture. Through this process, the surface of the dehumidification rotor 124 is regenerated in its original dry state, and the dehumidification rotor 124 is dehumidified again.

The heating means may be an electric heating heater (not shown) or a heat exchanger 125 using engine cooling water of the vehicle.

A part of the cooling water supplied from the vehicle engine side to the heater core 102 is branched and supplied to the heat exchanger 125. In other words, the main cooling water pipe P1 (P1) connecting the vehicle engine and the heater core 102 Is connected to the heat exchanger (125).

That is, part of the hot cooling water supplied from the engine side circulates through the heater core 102 through the main cooling water pipe P1, and part of the hot cooling water is branched through the auxiliary cooling water pipe P2, The heat exchanger 125 is circulated.

A cooling means is provided between the dehumidification rotor 124 of the dehumidifying duct 120 and the air inlet 111 to cool the air flowing through the dehumidification passage 121 through the dehumidification rotor 124 .

Preferably, the cooling means is a sensible heat exchanger (127).

The sensible heat exchanger 127 is a heat exchanger that performs primary heat exchange in order to lower the temperature of the dehumidified air while passing through the dehumidification rotor 124. The sensible heat exchanger 127 may be configured by forming a thin plate of aluminum or the like into a honeycomb shape, And air is exchanged therebetween while being heat-exchanged to be cooled.

A heat exchange passage 126 through which the air blown from the air blowing device 130 flows is formed at one side of the dehumidification passage 121 of the dehumidifying duct 120.

At this time, the inlet of the heat exchange passage 126 is formed to communicate with the dehumidification passage 121, and the outlet of the heat exchange passage 126 is formed to communicate with the outside.

The sensible heat exchanger 127 is formed in a cylindrical shape and is rotatably installed in the dehumidifying duct 120. A part of the sensible heat exchanger 127 is disposed on the dehumidification passage 121 side and a part of the sensible heat exchanger 127 is disposed on the heat exchange passage 126 side .

Therefore, the air blown from the air blowing device 130 flows through the heat exchange passage 126 to cool the sensible heat exchanger 127 located on the heat exchange passage 126 side, and the sensible heat exchanger 127, So that the dehumidified air flowing through the dehumidification passage 121 is cooled.

The structure for rotating the sensible heat exchanger 127 is the same as the dehumidification rotor 124 described above. That is, the sensible heat exchanger 127 is rotatably installed on a side of the dehumidifying duct 120 through a support bracket (not shown), and is rotationally driven through a motor (not shown).

An opening and closing door 128 for opening and closing the heat exchange passage 126 is installed in the heat exchange passage 126 to determine whether the sensible heat exchanger 127 is used or not.

The opening / closing door 128 is installed in the heat exchange passage 126 on the upstream side of the sensible heat exchanger 127.

Therefore, when the sensible heat exchanger 127 is driven, the heat exchange passage 126 is opened by the opening / closing door 128, and when the sensible heat exchanger 127 is stopped, the opening / (126) is closed.

4 and 7, if the sensible heat exchanger 127 is installed between the desiccant rotor 124 and the air inlet 111 of the air conditioner case 110, The temperature of the air at the rear end of the sensible heat exchanger 127 is assumed to be T3 and the enthalpy thereof is assumed to be h3 , The air temperature becomes T2> T3> T1, and the enthalpy becomes h2> h1> h3.

Therefore, by cooling the dehumidified air passing through the desiccant rotor 124 through the sensible heat exchanger 127, the amount of increase in the temperature of the dehumidified air can be minimized and the enthalpy can be reduced, It can improve performance.

On the other hand, the sensible heat exchanger 127 drives the sensible heat exchanger 127 in the maximum cooling mode, and operates in the maximum cooling mode and the low-stage operation of the blower under the air conditioner AUTO control condition, It is preferable that the sensible heat exchanger 127 is not driven under the condition of low temperature and high humidity under the air conditioner AUTO control condition. It is preferable that the sensible heat exchanger 127 is not driven even in the molar maximum heating mode.

Hereinafter, the operation of the air conditioner for a vehicle according to the present invention will be described.

end. The maximum cooling mode (Figure 5)

In the maximum cooling mode, as shown in FIG. 5, the temperature control door 115 opens the cold air passage in the air conditioning case 110 and closes the hot air passage.

Further, the dehumidification rotor 124 is rotated by the motor, and the engine cooling water circulates in the heat exchanger 125 serving as the heating means.

In addition, the sensible heat exchanger 127 is driven, that is, the opening / closing door 128 opens the heat exchange passage 126, and the sensible heat exchanger 127 is rotated by the motor.

Therefore, the air blown by the air blowing device 130 flows into the dehumidification passage 121, the regeneration passage 122, and the heat exchange passage 126 of the dehumidifying duct 120, respectively.

At this time, in the process of passing through the dehumidification rotor 124, the air introduced into the dehumidification passage 121 is adsorbed by the dehumidification rotor 124 to be dehumidified. Then, the dehumidified air is exchanged with the sensible heat exchanger 127 And then supplied into the air conditioning case 110 through the air inlet 111,

The air introduced into the regeneration passage 122 is heated by the heating means while passing through the regeneration passage 122. At this time, the heated air passes through the surface of the dehumidification rotor 124 rotated by the regeneration passage 122 in a state of adsorbing moisture in the dehumidification passage 121, and in this process, Thereby forcibly evaporating the moisture. Through this process, the surface of the dehumidifying rotor 124 is regenerated to its original dry state and becomes dehumidified again.

Then, the air having passed through the dehumidification rotor 124 in the regeneration passage 122 is discharged to the outside of the vehicle.

The air introduced into the heat exchange passage 126 is heat-exchanged with the sensible heat exchanger 127 to cool the sensible heat exchanger 127.

Subsequently, air supplied into the air conditioning case 110 through the dehumidification passage 121 passes through the evaporator 101 and is converted into a cool air, and then the heater core 102 is bypassed. Then, The air is discharged to the vehicle interior through the air outlet opened by the door 116 to cool the interior of the vehicle.

I. The maximum heating mode (Figure 6)

In the maximum heating mode, as shown in FIG. 6, the temperature control door 115 closes the cooling air passage in the air conditioning case 110 and opens the warm air passage.

Further, the dehumidification rotor 124 is rotated by the motor, and the engine cooling water circulates in the heat exchanger 125 serving as the heating means.

In addition, the sensible heat exchanger 127 is stopped, that is, the opening / closing door 128 closes the heat exchange passage 126, and the sensible heat exchanger 127 is stopped.

Therefore, the air blown by the air blowing device 130 flows into the dehumidification passage 121 and the regeneration passage 122 of the dehumidifying duct 120, respectively.

At this time, in the process of passing through the dehumidification rotor 124, the air introduced into the dehumidification passage 121 is adsorbed by the dehumidification rotor 124 to be dehumidified, and then passes through the sensible heat exchanger 127 The air is supplied into the air conditioning case 110 through the air inlet 111,

The air introduced into the regeneration passage 122 is heated by the heating means 125 while passing through the regeneration passage 122. At this time, the heated air passes through the surface of the dehumidification rotor 124 rotated by the regeneration passage 122 in a state of adsorbing moisture in the dehumidification passage 121, and in this process, Thereby forcibly evaporating the moisture. Through this process, the surface of the dehumidifying rotor 124 is regenerated to its original dry state and becomes dehumidified again.

Then, the air having passed through the dehumidification rotor 124 in the regeneration passage 122 is discharged to the outside of the vehicle.

Subsequently, the air supplied into the air conditioning case 110 through the dehumidification passage 121 passes through the evaporator 101, is changed into hot air in the process of passing through the heater core 102, The air is discharged to the vehicle interior through the air outlet opening by the door 116 and the car interior is heated.

100: air conditioner 101: evaporator
102: heater core 110: air conditioning case
111: air inlet
112: De-Frost Vents 113: Face Vents
114: Floor Vents 115: Temperature Control Door
116: Mode door
120: dehumidifying duct 121: dehumidifying passage
122: regeneration passage 123: partition wall
124: dehumidification rotor 125: heat exchanger
126: heat exchange passage 127: sensible heat exchanger
128: opening / closing door
130: blower 135: filter

Claims (8)

A blowing device 130 having a blowing fan 138 therein,
An air conditioning case 110 having an air inlet 111 to allow the air blown from the air blowing device 130 to flow in one side and a plurality of air outlets for discharging air on the other side,
And a heat exchanger installed in the air conditioning case (110), the air conditioning system comprising:
A dehumidifying passage 121 and a regeneration passage 122 through which the air blown from the air blowing device flows are connected to the air inlet 111 of the air conditioning case 110 and the air blowing device 130, A dehumidifying duct (120) formed in the partition and introducing the air having passed through the dehumidification passage (121) to the air inlet (111) side,
A part of which is disposed on the side of the dehumidification passage 121 and the other part of which is disposed on the side of the regeneration passage 122 so as to be rotatable in the dehumidification passage 121, A dehumidifying rotor 124 for dehumidifying the flowing air,
And a cooling unit installed between the dehumidification rotor 124 of the dehumidification duct 120 and the air inlet 111 and cooling the air passing through the dehumidification rotor 124 and flowing through the dehumidification passage 121, And the air conditioner is mounted on the vehicle. The method according to claim 1,
Wherein the cooling means is a sensible heat exchanger (127). 3. The method of claim 2,
A heat exchange passage 126 through which the air blown from the air blowing device 130 flows is formed at one side of the dehumidification passage 121 of the dehumidifying duct 120,
The sensible heat exchanger 127 is rotatably installed in the dehumidifying duct 120 and a part of the sensible heat exchanger 127 is disposed on the dehumidification passage 121 side and the other part is disposed on the heat exchange passage 126 side The air conditioning system comprising: The method of claim 3,
And an opening / closing door (128) for opening / closing the heat exchange passage (126) is provided in the heat exchange passage (126). The method of claim 3,
Wherein the inlet of the heat exchange passage (126) is formed to communicate with the dehumidification passage (121), and the outlet of the heat exchange passage (126) is formed to communicate with the outside. The method according to claim 1,
The dehumidification passage 121 is formed to communicate the discharge portion 137 of the air blowing device 130 and the air inlet 111,
Wherein the regeneration passage (122) is formed to communicate with the outside of the discharge portion (137) of the air blowing device (130). The method according to claim 1,
A heating means is provided on the upstream side of the dehumidification rotor 124 in the regeneration passage 122 to heat the air flowing in the regeneration passage 122 to dry the dehumidification rotor 124 portion of the regeneration passage 122 Wherein the air conditioner comprises: 8. The method of claim 7,
Wherein the heating means is a heat exchanger (125) installed in the regeneration passage (122) and circulating the cooling water supplied from the vehicle engine side.
KR1020140017609A 2014-02-17 2014-02-17 Air conditioner for vehicle KR102056790B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109353181A (en) * 2018-08-13 2019-02-19 东南大学 A kind of efficient multi-mode operation air-conditioning system utilized based on automotive residual heat

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006240573A (en) * 2005-03-07 2006-09-14 Mazda Motor Corp Air conditioner for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109353181A (en) * 2018-08-13 2019-02-19 东南大学 A kind of efficient multi-mode operation air-conditioning system utilized based on automotive residual heat

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