KR20140105946A - Air conditioner for vehicle - Google Patents

Air conditioner for vehicle Download PDF

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Publication number
KR20140105946A
KR20140105946A KR1020130019770A KR20130019770A KR20140105946A KR 20140105946 A KR20140105946 A KR 20140105946A KR 1020130019770 A KR1020130019770 A KR 1020130019770A KR 20130019770 A KR20130019770 A KR 20130019770A KR 20140105946 A KR20140105946 A KR 20140105946A
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KR
South Korea
Prior art keywords
air
sliding door
right cases
door
case
Prior art date
Application number
KR1020130019770A
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Korean (ko)
Inventor
변상철
김성현
김동균
김형주
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.)
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Application filed by 한라비스테온공조 주식회사 filed Critical 한라비스테온공조 주식회사
Priority to KR1020130019770A priority Critical patent/KR20140105946A/en
Publication of KR20140105946A publication Critical patent/KR20140105946A/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
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00664—Construction or arrangement of damper doors
    • B60H1/00692—Damper doors moved by translation, e.g. curtain doors

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The present invention relates to a vehicle air conditioner. More specifically, a sliding door and a lower case pocket unit is formed in an angle facing the draft angle of the inner surfaces of a right side case and a left side case to enable a sealing surface of the sliding door to easily come in contact with the left, right, and lower cases to enhance the sealability while preventing the air from leaking through the inner surfaces of the sliding door and the right and left cases.

Description

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

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an air conditioner for a vehicle, and more particularly, to a vehicle air conditioner having a sliding door and a pocket portion of a lower case formed at an angle corresponding to the inner surface minus of the left and right cases.

The air conditioner of the vehicle is an apparatus for cooling or heating the interior of the vehicle by introducing air outside the vehicle into the interior of the vehicle or by heating or cooling the air in the interior of the vehicle, A heater core for heating operation, and air blown by the evaporator or the heater core to blow air to each part of the interior of the vehicle by using a blowing mode switching door.

Such an air conditioner is characterized in that, in accordance with the independent structure of the blower unit, the evaporator unit and the heater core unit, the three-piece type in which the three units are independently provided, the evaporator unit and the heater core unit are built in the air conditioning case, A semi-center type provided as a separate unit, and a center mounting type in which all of the three units are incorporated in the air conditioner case.

1 is a perspective view showing an example of such a vehicle air conditioner. As shown in the figure, the vehicle air conditioner 1 is provided with a blower 20 on the side where air is introduced and a mode door (not shown) An air conditioning case 10 formed with a defrost vent 12, a face vent 13, and a floor vent 14, which are air discharge openings whose opening is controlled; An evaporator (2) and a heater core (3) embedded in the air conditioning case (10); And a temperature control door (30) for regulating the opening of the cold air passage passing the heater core (3) and the hot air passage passing through the heater core (3).

The air conditioning case 10 is constructed by assembling the left and right cases 10a and 10b which are divided from each other and the evaporator 2 is located in the lower part of the left and right cases 10a and 10b And a separate integral lower case 10c is assembled at the lower portion of the left and right cases 10a and 10b.

The lower end of the evaporator 2 is seated in the integral lower case 10c and the lower case 10c is not divided but integrated so as to prevent the leakage of the condensed water generated in the evaporator 2 .

The temperature control door 30 is a sliding type and is slidably installed between the evaporator 2 and the heater core 3 inside the air conditioner case 10 so as to be slidable between the cold air passage and the warm air passage And a gear shaft 32 which is rotatably coupled to both sides of the air conditioning case 10 and which is gear-engaged with the sliding door 31 to operate the sliding door 31 .

A sliding door (not shown), which is slidably installed on the air outlet side of the air conditioner case 10, is installed in the sliding door (not shown) And a gear shaft (not shown) engaged with the sliding door to operate the sliding door.

According to the vehicle air conditioner 1 configured as described above, when the maximum cooling mode is activated, the temperature control door 30 opens the cold air passage and closes the warm air passage. In addition, when the maximum heating mode is activated, the temperature control door 30 closes the cold air passage and opens the warm air passage.

Therefore, when the maximum cooling mode is activated, the air blown by the blower (not shown) is exchanged with the refrigerant flowing in the evaporator 2 through the evaporator 2 and converted into cool air, The air flows to the mixing chamber and is discharged to the inside of the vehicle through a vent opened by the mode door in accordance with the air discharge mode (vent mode, floor mode, defrost mode, bi-level mode, mix mode) .

Further, when the maximum heating mode is activated, the blowing air passes through the evaporator, passes through the heater core 3 through the hot air passage, exchanges heat with the cooling water flowing in the heater core 3, , Flows to the mixing chamber, and is discharged to the vehicle interior through a vent opened by the mode door in accordance with the air discharge mode, thereby heating the interior of the vehicle.

On the other hand, when the mixing mode is activated, the temperature control door 30 rotates to the neutral position to open both the cold air passage and the hot air passage. Accordingly, the cold air passing through the evaporator 2 and the hot air passing through the heater core 3 flow into the mixing chamber and are mixed and discharged to the vehicle interior through a vent opened by the mode door according to the air discharge mode.

The left and right cases 10a and 10b of the air conditioning case 10 are assembled by being divided into left and right cases. In this case, the left and right cases 10a and 10b are assembled, A minus slope 11 is formed on the inner surfaces of the left and right cases 10a and 10b.

That is, the inner surface of the air conditioning case 10 is formed as an inclined surface at a certain angle.

However, the sliding door 31 of the temperature control door 30 must be in close contact with the inner surfaces of the left and right cases 10a and 10b for sealing. Conventionally, the left and right cases The sliding door 31 and the lower case 10c are designed without taking into consideration the internal surface pulling out slope 11 of the left and right cases 10a and 10b so that the sliding door 31 and the left and right cases 10a and 10b There is a problem that air leaks through the inner surfaces.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art by forming a pocket portion of a sliding door and a lower case at an angle corresponding to a slip of an inner surface of a left and a right case, The present invention also provides a vehicle air conditioner capable of preventing air from leaking between the sliding door and the inner surfaces of the left and right cases.

According to an aspect of the present invention, there is provided an air conditioner comprising: an air conditioning case formed of left and right cases assembled with each other and a lower case assembled to a lower portion of the left and right cases; A cooling air passage slidably disposed between the evaporator and the heater core in the air conditioning case to bypass the heater core, a sliding door for controlling the opening degree of the hot air passage passing through the heater core, and a gear shaft The left and right cases are provided with a temperature adjusting door. The left and right cases have a draft angle formed on the inner surfaces of the left and right cases so that the left and right cases can be easily taken out during injection molding. An angle corresponding to an inner surface minus slope of the left and right cases facing the sliding door, As shown in Fig.

The present invention is characterized in that the sliding door and the one side surface of the pocket portion of the lower case are formed at the same angle as the pulling angle in consideration of the internal surface minus slope of the left and right cases, The inner surface and the one side surface of the pocket portion of the lower case are smoothly adhered to each other to improve the sealing property and thereby prevent the air from leaking between the sliding door and the inner surfaces of the left and right cases.

1 is a perspective view showing a conventional automotive air conditioner,
Fig. 2 is a sectional view showing a state in which the temperature control door is coupled between the left and right cases in Fig. 1,
3 is an exploded perspective view showing a vehicle air conditioner according to the present invention,
4 is a perspective view showing a temperature control door in a vehicle air conditioner according to the present invention,
5 is a sectional view taken along line AA in Fig. 3,
Fig. 6 is a sectional view taken along line BB of Fig. 3,
FIG. 7 is a sectional view showing a cooling mode in a vehicle air conditioner according to the present invention,
8 is a sectional view showing a heating mode in a vehicle air conditioner according to the present invention,
9 is a sectional view showing a mixing mode in a vehicle 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, the air conditioning system 100 according to the present invention includes an air inlet 111 formed at one side thereof and a plurality of air discharge holes 116 formed at the other side thereof for discharging inflow air, An air conditioning case 110 having an air passage 110d connecting the air outlet 111 and the air outlet 116 and an evaporator 101 disposed at a predetermined interval on the air passage 110d in the air conditioning case 110 A heater core 102 and a temperature control door 120 and a mode door 130 installed on the air passage 110d in the air conditioning case 110. The air conditioning duct 110d is installed in the air conditioning case 110,

The temperature control door 120 is installed on the air passage 110d between the evaporator 101 and the heater core 102 in the air conditioning case 110 to bypass the heater core 102 And the mode door 130 controls the opening of the air passage P1 through the air passage 110d and the opening of the air passage P2 through the heater core 102, The plurality of air discharge openings 116 are provided at the branching points to control the opening of the plurality of air discharge openings 116.

The air conditioning case 110 includes left and right cases 110a and 110b divided into left and right sides and an integral lower case 110c assembled to a lower portion of the left and right cases 110a and 110b. .

The integral lower case 110c is assembled at a lower position of the evaporator 101 to receive the lower end of the evaporator 101 so that the condensed water generated in the evaporator 101 is introduced into the integral lower case 110c It is possible to prevent the problem that the condensed water leaks into the passenger compartment even if the passenger falls.

Of course, a drain hole 110f is formed on the bottom surface of the lower case 110c to drain the condensed water to the outside of the vehicle.

The indoor air or the outside air is selectively introduced into the air inlet 111 of the air conditioning case 110 through an indoor air inlet opening (not shown) and an outdoor air inlet opening (not shown) An air blowing device 106 for blowing air into the air conditioning case 110 is installed.

The air blowing device 106 includes a scroll case 107 connected to the air inlet 111 of the air conditioning case 110 and a scroll case 107 rotatably installed in the scroll case 107, A blower 108 for blowing air to the air inlet 111 side of the scroll case 107 and an intake duct (not shown) provided at one side of the scroll case 107 and having the inside and outside air inflow ports.

The plurality of air discharge ports 116 may include a defrost vent 112 for discharging air toward the windshield of the vehicle, a face vent 113 for discharging air toward the face of the occupant of the front seat, And a floor vent 114 for discharging air toward the feet.

The defrost vent 112 and the face vent 113 are formed on the upper side of the air conditioner case 110 and the floor vent 114 is formed on the rear side of the air conditioner case 110.

Meanwhile, a partition wall 117 is formed between the rear-side hot air passage P2 of the heater core 102 and the floor vent 114, and is partitioned from each other.

The temperature control door 120 and the mode door 130 are connected to a driving means 170 such as an actuator or a cable type controller installed on the outer surface of the air conditioner case 110, P1) (P2) and the openings of the respective vents 112 to 114 are controlled.

The temperature control door 120 includes a gear shaft 121 rotatably installed on both sides of the air conditioning case 110 and rotated by the driving means 170 and having gear portions 122 at both ends thereof, A gear groove 126 is formed at both ends of the gear shaft 122 so as to engage with the gear portion 122 of the gear shaft 121 and a sliding operation is performed on the inside of the air conditioning case 110 when the gear shaft 121 rotates And a sliding door 122 for controlling the opening degree of the cold air passage P1 and the warm air passage P2.

At this time, sliding doors 118 are formed on both sides of the air conditioner case 110 so as to slidably support both ends of the sliding door 125.

On the other hand, the rear surface (sealing surface) of the sliding door 122 is brought into close contact with the inner surface of the air conditioner case 110 by the wind pressure acting in the air conditioner case 110,

That is, the sliding door 125 receives a force to be pushed in the air flow direction by the wind pressure of the air flowing through the air passage 110d in the air conditioning case 110, And is in close contact with the inner surface of the air conditioning case 110 facing the rear surface (sealing surface) of the door 125 to prevent air from leaking between the sliding door 125 and the inner surface of the air conditioning case 110.

For example, in the mixing mode, the sliding door 125 opens both the cold air passage P1 and the hot air passage P1. At this time, the rear surface (sealing surface) of the sliding door 125 contacts the air conditioning case The air flowing in the cold air passage P1 is not leaked to the warm air passage P2 and the air flowing in the warm air passage P2 is not leaked to the cold air passage P1 will be.

In the cooling mode, the sliding door 125 opens only the cold air passage P1 and closes the hot air passage P2. At this time, the air flowing in the cold air passage P1 is not leaked to the warm air passage P2 The same is true in the heating mode.

Meanwhile, the temperature control door 120 and the mode door 130, which will be described later, are injection-molded from a plastic material.

In the cooling mode, the sliding door 125 is located at the lowermost side so as to close the hot air passage P2. In the heating mode, the sliding door 125 is located at the uppermost position to close the cold air passage P1. Pockets (115a, 115b) for preventing air leakage are formed in the air conditioning case (110) by inserting the upper and lower ends of the sliding door (125).

That is, the lower case 110c of the air conditioning case 110 is formed with a pocket portion 115a into which the lower end of the sliding door 125 positioned at the lowermost end in the cooling mode is inserted, and the left and right cases 110a and 110b A pocket portion 115b into which the upper end of the sliding door 125 positioned at the uppermost position in the heating mode is inserted is formed.

The mode door 130 also includes a gear shaft 140 and a sliding door 150.

The gear shaft 140 is rotatably installed on both sides of the air conditioning case 110.

The sliding door 150 is formed in a curved shape and is slidably installed under the air discharge port 116 in the air conditioning case 110 so as to be slidably engaged with the gear shaft 140, To 114).

The sliding door 150 is formed with an opening 155 through which the openings of the vents 112 to 114 can be adjusted according to the sliding position of the sliding door 150.

A minus slope 119 is formed on the inner surfaces of the left and right cases 110a and 110b so that the left and right cases 110a and 110b can be easily taken out during injection molding.

That is, the inner surfaces of the left and right cases 110a and 110b are formed as inclined surfaces having a certain angle?.

Therefore, in the present invention, the sliding door 125 of the temperature control door 120 and the pocket portion (not shown) of the lower case 110c are formed in consideration of the inner surface minus slope 119 of the left and right cases 110a, 115a.

5, the sliding door 125 is rotated at an angle? Corresponding to the inner surface minus slope 119 of the left and right cases 110a and 110b facing the sliding door 125 .

That is, the sliding door 125 is provided on both sides of the mounting surface 110e of the left and right cases 110a and 110b so as to be spaced apart from the inner surface of the left and right cases 110a and 110b At an angle &thetas; corresponding to the angle &thetas;

6, a side surface 115c of the pocket portion 115a of the lower case 110c has an inner surface minus slope of the left and right cases 110a and 110b facing the sliding door 125, Is formed at an angle (?) Corresponding to the angle (119).

That is, one side 115c of the pocket part 115a is located on the opposite side of the assembly surface 110e of the left and right cases 110a and 110b to the left and right sides of the left and right cases 110a and 110b, Is formed to be inclined at an angle (?) Corresponding to the inner surface subtraction gradient (119).

One side 115c of the pocket portion 115a is a side facing the rear surface (sealing surface) of the sliding door 125. [

The sliding door 125 and one side surface 115c of the pocket portion 115a are formed such that both sides of the sliding door 125 are symmetrically inclined with respect to the mounting surface 110e of the left and right cases 110a and 110b , And it is preferable that the angle of inclination is 0.5 degree, but this can be changed.

The sliding door 125 and the side surface 115c of the pocket portion 115a of the lower case 110c may be formed in a curved shape in consideration of the inner surface minus slope 119 of the left and right cases 110a and 110b, The slidable door 125 is formed at the same angle as the subtraction gradient 119 so that the sliding door 125 is positioned between the inner surface of the left and right cases 110a and 110b and the pocket portion 115a of the lower case 110c It is possible to prevent the problem that air is leaked between the sliding door 125 and the inner surfaces of the left and right cases 110a and 110b.

Hereinafter, the maximum cooling mode, the maximum heating mode, and the mixing mode of the vehicle air conditioning system according to the present invention will be described. In the air discharge mode, the sliding door 150 of the mode door 130 drives the face vent 113 A case where the vent mode is opened will be described as an example.

end. Maximum cooling mode

7, the sliding door 125 is slid downward by the operation of the gear shaft 121 of the temperature control door 120, so that the cold air passage P1 is opened, The passage P2 is closed.

Therefore, air blown by the air blowing device 106 is changed into cold air while passing through the evaporator 101. [

The cold air cooled by the evaporator 101 bypasses the heater core 102 through the cold air passage P1 opened by the temperature control door 120 and is then opened by the mode door 130 And is discharged to the face vent 113 to cool the inside of the car.

I. Maximum heating mode

As shown in FIG. 8, in the maximum heating mode, the sliding door 125 is slid upward by the operation of the gear shaft 121 of the temperature control door 120, whereby the cold air passage P1 is closed, The passage P2 is opened.

Therefore, the air blown by the air blowing device 106 passes through the evaporator 101 and then exchanges heat with the heater core 102 in the process of passing through the hot air passage P2 opened by the temperature control door 120 And is discharged to the face vent 113 opened by the mode door 130 to heat the passenger compartment.

All. Mixing mode

9, the sliding door 125 is slid to the neutral position by the operation of the gear shaft 121 of the temperature control door 120, whereby the cold air passage P1 and the warm air passage P2 ) Are all opened.

Therefore, air blown by the air blowing device 106 is changed into cold air while passing through the evaporator 101. [

A part of the cold air cooled through the evaporator 101 bypasses the heater core 102 through the cold air passage P1 and a part of the cold air passes through the heater core 102 The heat exchange changes to warm air.

The cool air passing through the cool air passage P1 and the warm air passing through the warm air passage P2 are mixed with each other in the mixing chamber MC and then the face vent 113 opened by the mode door 130 So that the temperature of the inside of the car is adjusted to an appropriate temperature.

As described above, the sliding door 125 and the pocket portion 115a of the lower case 110c are formed in consideration of the inner surface pull-out gradient 119 of the left and right cases 110a and 110b. Only the case where the side surface 115c is formed at the same angle? As the subtraction gradient 119 is applied to the center mounting type air conditioner. However, the present invention is not limited to this, and a semi-center type air conditioner, The same effect can be applied to various air conditioners such as air conditioners, and the same effect can be obtained.

100: air conditioner 101: evaporator
102: heater core
110: air conditioning case 110a: left case
110b: right case 110c: lower case
110d:
111: air inlet
112: Dipot Provent 113: Face Vent
114: floor vents 115a, 115b:
116: air outlet
117: partition wall 118: sliding groove
119: minus draft 120: temperature control door
121: Gear shaft 125: Sliding door
130: Mode door 170: Driving means

Claims (4)

An air conditioning case 110 formed of left and right cases 110a and 110b assembled with each other and a lower case 110c assembled to the lower parts of the left and right cases 110a and 110b,
An evaporator 101 and a heater core 102 provided inside the air conditioning case 110,
A cool air passage P1 which is slidably installed between the evaporator 101 and the heater core 102 in the air conditioning case 110 to bypass the heater core 102 and a hot air passage And a temperature control door 120 composed of a sliding door 125 for controlling the opening degree of the sliding door P2 and a gear shaft 121 for operating the sliding door 125,
The vehicle air conditioner according to claim 1, wherein the left and right cases (110a, 110b) have a draft angle (119) formed on the inner surfaces of the left and right cases (110a, 110b)
Wherein the sliding door is formed to be inclined at an angle a corresponding to an inner surface minus slope 119 of the left and right cases 110a and 110b facing the sliding door 125. [ Air conditioning system. The method according to claim 1,
The sliding door 125 is formed so that both sides of the sliding door 125 are inclined relative to the inner surface minus slope 119 of the left and right cases 110a and 110b, Is formed to be inclined at a corresponding angle (?). The method according to claim 1,
The lower case 110c is formed with a pocket portion 115a into which the lower end of the sliding door 125 is inserted,
One side surface 115c of the pocket portion 115a is inclined at an angle alpha corresponding to the inner surface minus slope 119 of the left and right cases 110a and 110b facing the sliding door 125 Is formed on the outer surface of the vehicle. The method of claim 3,
One side surface 115c of the pocket portion 115a is formed so that both sides of the one side surface 115c of the pocket portion 115a are defined by the inner surface of the left and right cases 110a and 110b, Is inclined at an angle (?) Corresponding to the subtraction gradient (119).
KR1020130019770A 2013-02-25 2013-02-25 Air conditioner for vehicle KR20140105946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130019770A KR20140105946A (en) 2013-02-25 2013-02-25 Air conditioner for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130019770A KR20140105946A (en) 2013-02-25 2013-02-25 Air conditioner for vehicle

Publications (1)

Publication Number Publication Date
KR20140105946A true KR20140105946A (en) 2014-09-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020130019770A KR20140105946A (en) 2013-02-25 2013-02-25 Air conditioner for vehicle

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3072331A1 (en) * 2017-10-16 2019-04-19 Valeo Systemes Thermiques DEVICE FOR HEATING, VENTILATION AND / OR AIR CONDITIONING FOR A MOTOR VEHICLE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3072331A1 (en) * 2017-10-16 2019-04-19 Valeo Systemes Thermiques DEVICE FOR HEATING, VENTILATION AND / OR AIR CONDITIONING FOR A MOTOR VEHICLE

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