KR20130048488A - Air conditioner for vehicles - Google Patents

Air conditioner for vehicles Download PDF

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Publication number
KR20130048488A
KR20130048488A KR1020110113353A KR20110113353A KR20130048488A KR 20130048488 A KR20130048488 A KR 20130048488A KR 1020110113353 A KR1020110113353 A KR 1020110113353A KR 20110113353 A KR20110113353 A KR 20110113353A KR 20130048488 A KR20130048488 A KR 20130048488A
Authority
KR
South Korea
Prior art keywords
air
internal
vehicle
intake duct
air conditioner
Prior art date
Application number
KR1020110113353A
Other languages
Korean (ko)
Inventor
이용흥
김진욱
최태혁
Original Assignee
한라비스테온공조 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 한라비스테온공조 주식회사 filed Critical 한라비스테온공조 주식회사
Priority to KR1020110113353A priority Critical patent/KR20130048488A/en
Publication of KR20130048488A publication Critical patent/KR20130048488A/en

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Classifications

    • 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
    • B60H1/00849—Damper doors, e.g. position control for selectively commanding the induction of outside or inside air
    • 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
    • B60H1/00864—Ventilators and damper doors
    • 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
    • B60H1/00871—Air directing means, e.g. blades in an air outlet
    • 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
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H2001/006—Noise reduction
    • 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
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H2001/00635—Air-tight sealing devices

Abstract

PURPOSE: An air conditioner for a vehicle is provided to reduce noise due to the outdoor air with a strong flow rate and improve the properties of airtightness of the inner and outer parts of the air conditioner. CONSTITUTION: An air conditioner for a vehicle comprises an air conditioner case, an evaporator, a heater core, and an intake duct(30). The air conditioner case includes an air inlet and a plurality of air discharge vents. The intake duct is connected to the air inlet side and includes the inside and outside machine inlets(31,32) whose openings are controlled by the inside and outside machine converting door(33). The inside and outside machine converting door includes a sealing member. The sealing member is comprised of dividing a plurality of shields along the end portion of the inside and outside machine converting door connecting the intake duct. A support member is formed to reduce the deformation of the shield due to the air pressure in a branch unit formed between the shields.

Description

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

The present invention relates to a vehicle air conditioner, and more particularly, to reduce the noise generated when air is introduced into the intake duct while the vehicle is running, and to improve the airtightness of the intake duct and the internal and external air conversion doors. It relates to a vehicle air conditioner having a

In general, the vehicle air conditioner 1 is a device that cools or heats a vehicle interior by introducing indoor / outdoor air of a vehicle and heating or cooling the air to blow into the interior of the vehicle.

1 is a cross-sectional view of a vehicle air conditioner 1 of the semi-center mounting type of the prior art, Figure 2 is a cross-sectional view of the blower 20 of the vehicle air conditioner of Figure 1, Figure 3 is a vehicle air conditioner of Figure 1 1 is a cross-sectional view of the vehicle air conditioner 1 of FIG.

As shown in FIG. 1, the internal air inlet 31 and the external air inlet 32 are formed on the upper side, and the internal and external air inlet doors 33 to selectively open and close the internal and external air inlets 31 and 32. Is installed, the blower 20 made of a blower fan 21 and the motor 22 for forcibly blowing the internal and external air to the air inlet (11a) side of the air conditioning case 10, and the blower 20 Air inlet 11a through which air blown from is introduced and an outlet 12 through which the air is discharged, and an air conditioner case 10 in which an evaporator 2 and a heater core 3 are installed at regular intervals therein. It is composed of

Here, the internal and external air conversion door 33 is used in various forms, such as a flat type, a dome type, a cylindrical shape, a hemispherical shape, which receive less air pressure.

FIG. 2 is a cross-sectional view illustrating a conventional vehicle blower to which a unidirectional suction blower fan is applied. As shown in FIG. 2, a discharge port 35 connected to an air conditioning case 10 is formed at one side and an upper portion of the scroll case 36 is opened. )Wow; In addition to being installed on the upper portion of the scroll case 36, the internal and external air inlets 31 and 32 are formed so that internal and external air can be introduced respectively, and selectively open and close the internal and external air inlets 31 and 32. An intake duct 30 having internal and external air conversion doors 33 installed therein; A suction port 37 which provides a suction passage of air between the intake duct 30 and the scroll case 36; A blowing fan (21) rotatably installed in the scroll case (36); And a motor 22 installed below the scroll case 36 to rotate the blowing fan 21 and connected to the blowing fan 21. Reference numeral 38 in FIG. 2 denotes an air filter 40 for filtering foreign matter contained in the air sucked into the intake duct 30, and the air filter 40 may be selectively mounted.

In addition, the internal and external air conversion door 33 is driven by a separate cable (not shown) and an actuator (not shown).

In addition, the blower fan 21 is a unidirectional suction type structure, and is configured to suck air from one side of the axial direction, that is, the suction port 37 side, and discharge the air in a radial direction according to the rotation thereof.

In addition, the hub plate 25 is generally formed in a concave shape toward the interior (ie, the upper portion) of the space formed by the blades 33, so that the hub 22 is inserted into the space with a portion of the motor 22. It is connected to the plate 25.

Accordingly, when the blower fan 21 is rotated by the driving of the motor 22, the air inlet 31 or the air inlet 32, which is selectively opened according to the opening degree of the internal / external air switching door 33, is opened. Through the inside or outside air flows in the axial direction of the blowing fan 21 through the suction port 37, flows along the inclined top surface of the hub plate 25 is discharged in the radial direction of the blowing fan 21. . This air flows along the side wall of the scroll case 36 and is blown into the air conditioning case 10 through the discharge port 35 while the air pressure and the air volume increase.

When the vehicle air conditioner 1 having the above-described structure performs cooling and heating using internal air, strong outside air flows into the outside air inlet 32 as the vehicle travels, and when the outdoor air having strong pressure flows into the vehicle, Cooling or heating efficiency of the room is lowered. Accordingly, in order to prevent the inflow of outside air (or to prevent leakage of the inside air), the body 51 having the shielding portion 52 cut in the Y shape in the vertical direction of the inside and outside air switching door 33 and the inside and the outside A sealing member 50 having a coupling part 53 formed as a groove into which the upper and lower sides of the switchover door 33 are inserted in the longitudinal direction is mounted, and is disposed between the intake duct 30 and the inner / outer air switching door 33. Maintain confidentiality of your space.

However, the above-described vehicle air conditioner 1 of the prior art increases the pressure of the outside air flowing into the outside air inlet 32 during the high-speed running of the vehicle, so that the shape of the shielding portion 52 is converted to the intake duct 30 and the sealing. A gap is formed between the members 50, causing a problem of inflow of outside air.

When a gap is generated between the sealing member 50 and the intake duct 30 as described above by the high pressure outdoor air, hot air (summer) or cold air (winter) is introduced into the vehicle in the inflow mode. It acts as a cause of lowering the cooling or heating efficiency.

In addition, a gap is formed between the intake duct 30 and the sealing member 50 during the high speed driving of the vehicle, so that the fluid and the intake duct 30 or the sealing member 50 flow at high speed when a high pressure outdoor air flows into a narrow gap. The noise is generated by the collision with the surface acts as a cause of discomfort to the occupant of the vehicle has a problem that acts as a cause to significantly reduce the ride comfort of the vehicle.

Therefore, the present invention is to solve the problems of the prior art described above, when the vehicle air conditioner is switched to the bet mode, when driving at high speed, through the outside air inlet to minimize the inflow of the outside air, noise from the outside air It is an object of the present invention to provide an air conditioning apparatus for a vehicle having an improved structure that does not cause discomfort caused by the noise of a rider by minimizing the improvement.

The air conditioner for a vehicle of the present invention for achieving the above object, the air inlet (11a) is formed on the inlet side and the air-conditioning case (10) formed with a plurality of air discharge vents 12 are respectively opened at the outlet side; An evaporator (2) and a heater core (3) embedded in the air conditioning case (10); In the air conditioner for a vehicle comprising an intake duct 30 having an internal and external air inlet 31, 32 is connected to the air inlet (11a) side and the opening degree is controlled by the internal and external air conversion door 33 The internal and external air conversion door 33 includes a sealing member 50 formed by branching a plurality of shielding portions 52 along an end portion of the internal and external air conversion door 33 in contact with the intake duct 30. In addition, the branch formed between the plurality of shields, characterized in that the support member 150 is formed to reduce the deformation of the shield by the air pressure.

The intake duct 30 includes a partition wall 39 for dividing the internal and external air inlets 31 and 32 and faces the main body surface 34 of the internal and external air conversion door 33. The inner surface of the partition wall 39 is characterized in that a plurality of protrusions 110 are formed protruding.

The projection 110 is characterized in that disposed in the air flow direction upstream side of the sealing member 50 of the internal and external air conversion door 33 in the internal or external mode.

The support member 150 is formed in the space between the shield 52 of the sealing member 50 corresponding to the position parallel to the shield 52 along the longitudinal direction of the partition wall (39). do.

In addition, the support member 150 is formed in the space between the shield 52 of the sealing member 50 corresponding to the staggered position with the shield 52 along the longitudinal direction of the partition wall (39). It features.

The vehicle air conditioner according to the present invention including the intake duct 30 and the internal / external air switching door 33 having the above-described structure includes the internal / external air switching when the vehicle runs at high speed while the internal / external air switching door 33 is in the betting mode. The outside air having a strong pressure and a flow rate flowing into the outside air inlet 32 of the door 33 flows between the inside and outside air conversion door 33 and the intake duct 30 by the protrusions 110 to prevent the vortex By changing the shape and reducing the flow rate, the noise caused by the strong air flow is significantly reduced.

In addition, the vehicle air conditioner according to the present invention has a resistance to deformation caused by the external force of the shielding portion 52 is increased by the deformation preventing member 150 is filled in the area between the shielding portion 52 of the sealing member 50 air conditioning apparatus The tightness of the inside and outside of the is further improved.

Therefore, in the present invention, even when the vehicle is traveling at high speed, the shield 52 is supported by the deformation preventing member 150 and is not deformed, thereby preventing leakage of outside air and significantly reducing the flow rate of the outside air introduced by the projections. It minimizes the occurrence of noise caused by the outside air, thereby minimizing the discomfort caused by the noise of the vehicle occupant provides a significant improvement in the ride comfort of the vehicle.

1 is a cross-sectional view of a vehicle air conditioner 1 of the semi-center mounting type of the prior art,
2 is a cross-sectional view of the blower 20 of the vehicle work machine of FIG.
3 is a cross-sectional view of the vehicle air conditioner 1 of FIG. 1 showing an inflow state of the internal and external air conversion door 33 to which the sealing member 50 is coupled for airtightness in the vehicle air conditioner of FIG.
4 is a side cross-sectional view of the sealing member 50 showing the detailed configuration of the sealing member 50;
5 is a front view of a portion of the intake duct 30 viewed from the outside air inlet 32 of the intake duct 30 to which the protrusion 110 is applied to the air conditioning apparatus according to the embodiment of the present invention.
6 is a side cross-sectional view of the portion of the intake duct 30 of FIG.
7 is a sealing member 50 for sealing between the inside and outside air conversion door 33 and the intake duct 30 of the intake duct 30 of FIG. 6 and a protrusion for reducing the flow rate of the outside air to reduce the generation of noise ( It is an expanded partial sectional view of the opposing part of the intake duct 30 and the internal / external air switching door 33 which show the structure of 110. As shown in FIG.

Hereinafter, with reference to the accompanying drawings showing a preferred embodiment of the present invention will be described in more detail the present invention.

In the description of the embodiment of the present invention, the same configuration as the prior art shown in Figs. 1 to 4 will be described using the same reference numerals and names as the prior art.

5 is a front view of a portion of the intake duct 30 viewed from the outside air inlet 32 of the intake duct 30 to which the protrusion 110 is applied to the air conditioner according to the embodiment of the present invention, and FIG. 6 is the intake of FIG. 5. Side cross-sectional view of the portion of the duct 30, Figure 7 is a sealing member 50 for sealing between the inside and outside air conversion door 33 and the intake duct 30 of the intake duct 30 of FIG. It is an enlarged partial sectional view of the opposing part of the intake duct 30 and the internal / external air switching door 33 which show the structure of the processus | protrusion 110 which reduces the flow velocity of external air so that it may be made.

In the air conditioning apparatus of the embodiment of the present invention to which the protrusions 110 are applied, an air inlet is formed at the inlet side, and an air conditioning case (not shown) is provided with a plurality of air discharge vents each having an opening degree controlled at the outlet side. An evaporator and a heater core embedded therein; and a blower device 20 having a blower fan 21; and an internal / external air inlet 31 and 32 whose opening degree is controlled by the internal / external air switching door 33. A general structure including an intake duct 30; and at least one temperature control door for adjusting the opening degree of the cold air passage and the warm air vent in the air conditioning case, and a plurality of mode doors for adjusting the opening degree of each air discharge vent. When the inside and outside air conversion door 33 is located at the position of the bet mode in the inside of the intake duct 30 as a feature of the present invention, the inside and outside air conversion toward the outside air inlet 32 side of the inside and outside air conversion door 33 Door (3 A plurality of protrusions 110 are projected from the inner circumferential surface of the intake duct 30 facing the body surface 34 of 3) at a predetermined interval on the bottom surface of the partition wall 39 that divides and partitions the internal and external air inlets 31 and 32. ) Is protruding.

6 and 7, a body 51 having a shielding portion 52 cut in a Y-shape at the edge of the internal / external air conversion door 33; and the internal / external air conversion door 33. Coupling portion (53) is formed as a groove is inserted into the side of the longitudinal side of the upper and lower sides of;), and the deformation preventing member 150 is filled between the shielding portion; 50 is formed to be coupled to the inside surface of the internal / external air conversion door 33 and the external / external air conversion door 33 at the contact surface of the intake duct 30 and the internal / external air conversion door 33. Outside area).

The air conditioner according to the embodiment of the present invention having the above-described structure forms an air flow that causes the inside or outside air to circulate inside the vehicle by the negative pressure generated by the blower 20 when cooling the vehicle. The air flow formed by the blower 20 is discharged to the vehicle interior through the air discharge vent without passing through the air filter 40 and bypassing the heater core by the temperature control door through the evaporator after the impurities are removed. Cool the room.

When heating the vehicle, the air introduced through the air inlet 31 or the outside air inlet 32 by the negative pressure generated by the blower 20 passes through the air filter 40, and impurities are generated. After being removed, the evaporator and the heater core are bypassed and heated, and then the air is discharged into the vehicle interior through the air discharge vent to heat the interior.

In this process, when the cooling and heating is performed in the betting mode, the internal and external air conversion door 33 is located at a position that shields the outside air inlet 32 side and opens the inside air inlet 31 side, and a blower device ( Air generated in the vehicle is circulated repeatedly through the vehicle interior-> air inlet 31-> air conditioner interior-> air discharge vent 12 due to the negative pressure formed by 20).

When the vehicle is running in the process of performing such cooling and heating, the high speed and high pressure to apply pressure to the outside and outside air switching door 33 to the outside area of the outside and outside air conversion door 33 on the outside air inlet 32 side by the running speed of the vehicle. The external air pressure is formed.

The external air pressure acts as a deformation force on the shield 52 of the internal and external air conversion doors 33, and the deformation preventing member 150 filled between the shields 52 prevents deformation of the shield 52. To maintain contact between the inner surface of the intake duct 30 and the shield 52. Accordingly, the high pressure outside air is prevented from being introduced into the inside through the gap between the shield 52 and the intake duct 30, and as a result of the deformation of the shield 52 due to the high pressure outside air as in the prior art. The occurrence of noise due to high speed outside air introduced through a narrow gap formed between the shield 52 and the intake duct 30 is prevented.

In addition, the protrusion 110 has a greater pressure of the outside air so that the deformation preventing force of the shielding portion 52 by the deformation preventing member 150 does not overcome the outside pressure so that the shielding portion 52 is deformed and the shielding portion 52 and A gap is generated between the inner surfaces of the intake duct 30, and a function of reducing noise generated when external air is introduced through the gap is generated.

Specifically, in the high speed driving of the vehicle, the pressure in the external region toward the outside air inlet 32 side of the internal / external air conversion door 33 increases greatly with the speed of the vehicle. The high-pressure air condensation formed in this way generates a flow of leakage inflow air having a large flow rate in proportion to the pressure when a gap is generated between the shield 52 and the intake duct 30. Such a large flow rate of leakage inflow air generates whistle noise by a narrow gap between the shield 52 and the intake duct 30. At this time, the protrusions 110 are located on the path of the leaked air flow flowing in at a high speed, thereby significantly reducing the flow rate of the leaked air flow by changing the flow of the leaked air into a vortex rather than a normal flow. When the flow velocity of the leaked air flow decreases, the energy due to friction between the shield 52 and the face of the intake duct 30 forming a gap between the shield 52 and the intake duct 30 is nonlinear with respect to the flow rate. As it decreases, noise also decreases significantly. Therefore, the protrusion 110 significantly reduces noise generated by the air flow flowing in when a gap is generated between the contact portion of the shield 52 and the intake duct 30.

Therefore, the vehicle air conditioner of the present invention prevents the leakage air flow of the vehicle by applying the deformation preventing member 150 and the projection 110, and significantly reduces the generation of noise even when the leakage air flow occurs. By improving the quietness of the vehicle, it is possible to reduce the occurrence of discomfort due to the noise generated by the air flow of the occupant, thereby providing an effect of significantly improving the riding comfort of the vehicle.

20: blower, 21: blower fan, 22: motor, 30: intake duct, 31: air inlet
32: outside air inlet, 33: indoor and outdoor air conversion doors, 40: air filter
50: sealing member, 51: body, 52: shield, 53: coupling portion, 54: fixing groove
110: projection, 150: deformation preventing member

Claims (5)

An air inlet (11a) is formed at the inlet side and the air-conditioning case (10) having a plurality of air discharge vents (12) having an opening degree controlled at the outlet side; An evaporator (2) and a heater core (3) embedded in the air conditioning case (10); In the air conditioner for a vehicle comprising an intake duct 30 having an internal and external air inlet 31, 32 is connected to the air inlet (11a) side and the opening degree is controlled by the internal and external air conversion door 33 ,
The internal and external air conversion door 33 includes a sealing member 50 formed by branching a plurality of shielding portions 52 along the end of the internal and external air conversion door 33 in contact with the intake duct 30. ,
The branching portion formed between the plurality of shielding portion, the vehicle air conditioner, characterized in that the support member 150 is formed to reduce the deformation of the shielding portion due to air pressure. The method of claim 1, wherein the intake duct 30,
And partition walls 39 for dividing the internal and external air inlets 31 and 32,
A vehicle air conditioning apparatus, characterized in that a plurality of protrusions (110) protruding from the inner surface of the partition wall (39) facing the main body surface (34) of the internal and external air conversion door (33). The method according to claim 2, The protrusion 110,
Vehicle air conditioning apparatus, characterized in that disposed in the air flow direction upstream of the sealing member 50 of the internal and external air conversion door in the internal or external mode. The method of claim 2, wherein the support member 150,
Vehicle air conditioning apparatus, characterized in that formed in the space between the shielding portion 52 of the sealing member 50 corresponding to the position parallel to the protrusion 110 along the longitudinal direction of the partition wall (39). The method of claim 2, wherein the support member 150,
Vehicle air conditioning apparatus, characterized in that formed in the space between the shielding portion 52 of the sealing member (50) corresponding to the staggered position in the longitudinal direction of the partition wall (39).
KR1020110113353A 2011-11-02 2011-11-02 Air conditioner for vehicles KR20130048488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110113353A KR20130048488A (en) 2011-11-02 2011-11-02 Air conditioner for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110113353A KR20130048488A (en) 2011-11-02 2011-11-02 Air conditioner for vehicles

Publications (1)

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KR20130048488A true KR20130048488A (en) 2013-05-10

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KR1020110113353A KR20130048488A (en) 2011-11-02 2011-11-02 Air conditioner for vehicles

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111038219A (en) * 2019-12-31 2020-04-21 博耐尔汽车电气系统有限公司 Internal and external circulation air door of vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111038219A (en) * 2019-12-31 2020-04-21 博耐尔汽车电气系统有限公司 Internal and external circulation air door of vehicle
CN111038219B (en) * 2019-12-31 2023-07-28 博耐尔汽车电气系统有限公司 Vehicle-in-vehicle and vehicle-out circulation air door

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