JP2002036857A - Air conditioner door and air conditioner for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner door and an air conditioner for a vehicle allowing stable supply of a very small quantity of air. SOLUTION: In a rotary shaft 220a of a door 220 opening/closing an air flow passage port 122 inside the air conditioner for a vehicle, opening/closing parts 221a, 222a are arranged, and they are controlled so as to be opened/closed when the door 220 closes the air flow passage port 122. Actually, the opening/ closing parts 221a, 222a are constructed by inserting second rotary shaft (inner shaft) 222 into the inside of a first rotary shaft 221 formed of the rotary shaft 220a with the hollow inside and arranging a first through-hole 221a and a second through-hole 222a in the directions crossing the axial directions of the respective shafts 221, 222, and the respective shafts 221, 222 are turned interlockingly with each other. Alternatively, the inner shaft 222 is reciprocated in the axial direction to allow the first through-hole 221a to communicate with the second through-hole 222a mutually or to close them, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner door and a vehicle air conditioner using the same, and more particularly to an improvement in an opening / closing function of an air passage opening.

[0002]

2. Description of the Related Art Conventionally, as a door for opening and closing an air passage in a vehicle air conditioner, a door having a sub door as shown in Japanese Utility Model Publication No. 1-62908 is known.

[0003] As shown in FIG.
00 is provided with an opening 310 in the main door 300.
A sub-door 320 is fixed to a sub-rotation shaft 321 concentric with the rotation shaft 311 of the sub-door 32.
It opens and closes at 0. Main door 300
When opening the sub door 320, the sub door 320 is opened first, and then the main door 300 is opened by the link mechanism 260 including the levers 312 and 322 and the link plate 250.

Thus, when the door is opened, the main door 300 is opened with the pressure difference between the upstream side and the downstream side of the sub-door 320 being small, and the door is opened. The operating force at the time can be reduced.

[0005]

However, when the main door 300 is rotated from one air conditioning mode to another air conditioning mode, the sub door 320 opens and closes to reduce the operating force, and the main door 300 has an arbitrary air conditioning. In the mode, the sub door 320 closes the opening 310 of the main door 300 and operates as one door.

[0006] In an arbitrary air conditioning mode, for example, when it is desired to open a door minutely to flow minute air into the air flow path, drift of air conditioning air in the apparatus, switching of blowing capacity, hysteresis of the link mechanism 260, door and air It is very difficult to secure and maintain the small opening of the door due to the variation of the gap with the flow path port, and it is not possible to supply stable minute air.

An object of the present invention is to provide a door for an air conditioner and an air conditioner for a vehicle capable of stably supplying minute air in view of the above problems.

[0008]

In order to achieve the above object, the present invention employs the following technical means.

According to the first aspect of the present invention, the plate-like portion (225) provided in the air passage opening (122) and fixed to the rotation shaft (220a) rotates about the rotation shaft. In the air conditioner door that opens and closes the air passage opening (122), an opening / closing section (221a, 2a) that adjusts a communication state between the upstream side and the downstream side of the plate-shaped section (225) with the rotating shaft (220a).
22a) is provided, and the plate-like portion (225) is provided with the air passage opening (1).
22), the opening / closing portions (221a, 222) are closed.
a) is opened and closed.

[0010] With this, even if the plate-like portion (225) is not provided with a minute opening, the opening / closing portions (221a, 222a) provided on the rotating shaft (220a) can be opened to allow the minute air to flow, thereby allowing air to flow. Stable micro air can be supplied without being affected by the drift of the air flowing through the flow path port (122) or the variation in the gap between the plate-like portion (225) and the air flow path port (122).

According to the second aspect of the invention, the opening / closing section (22)
1a, 222a) inserts a second rotating shaft (222) into a first rotating shaft (221) in which the inside of the rotating shaft (220a) is formed to be hollow, and converts each rotating shaft (221). , 222)
The first through-holes (22
1a), a second through-hole (222a) is provided, and each rotating shaft (221, 222) is rotated in conjunction with the first through-hole (221a) and the second through-hole (222a). Are respectively connected or closed.

As a result, each through-hole (221a, 222
a) can be opened or closed by communicating or closing in accordance with the rotation position of each of the rotation shafts (221, 222), and does not require the configuration of a subdoor, and supplies stable micro air with an inexpensive structure. it can.

According to the third aspect of the present invention, the opening area of the first through hole (221a) is equal to the second through hole (222a).
Is provided so as to be larger than the opening area.

By setting a large opening area on the side of the first rotating shaft (221) having a large rotating shaft diameter, processing of each through-hole (221a, 222a) is facilitated, and the link mechanism ( 260), the variation in the rotational position of each through-hole (221a, 222a) due to the hysteresis can be absorbed, the opening area at the time of communication can be secured, and stable micro air can be supplied.

According to the fourth aspect of the present invention, the opening / closing section (22)
1a, 222a) has a center shaft (22a) inside an outer rotation shaft (221) in which the inside of the rotation shaft (220a) is hollow.
2) and a plurality of first through-holes (221a) and a plurality of second through-holes (22) such that their positions match each other in a direction intersecting with the axial direction of each axis (221, 222).
2a), in which the center shaft (222) is connected to the outer rotating shaft (2).
21) is reciprocated in the axial direction with respect to the plurality of first through holes (221a) and the plurality of second through holes (222a), respectively.

Thus, the center shaft (222) is reciprocated without rotating, so that the link mechanism (2) for the center shaft (222) is moved.
60) becomes unnecessary and can be made more inexpensive. Also,
Since the movement position of each through hole (221a, 222a) is not affected by the hysteresis of the link mechanism (260), stable and minute air can be supplied reliably.

According to the fifth aspect of the present invention, the apparatus comprises a blower unit (110) and a temperature adjusting unit (120), and each unit (110, 120) has a rotating shaft (20).
1, 220a, 231, 241),
A plurality of air passage openings (112, 113, 122, 123,
124) (200, 220, 23)
0, 240), wherein at least one of the doors (220)
Opening / closing portions (221a, 222) for adjusting the communication between the upstream side and the downstream side of the door (220) to the rotating shaft (220a) of the door.
a) is provided, and the control means opens and closes the opening / closing portions (221a, 222a) according to the air conditioning mode when the door (220) closes the air passage opening (122). .

Thus, the opening / closing section (2) provided on the rotating shaft (220a) can be provided without providing the door (220) with a minute opening.
21a, 222a) can be opened to allow the flow of minute air, and the convection of the conditioned air in each unit (110, 120),
Stable fine air can be supplied without being affected by the switching of the blowing capacity, the hysteresis of the link mechanism (260), the variation in the gap between the door (220) and the air passage opening (122), and the like.

In the invention described in claim 6, the target door (220) is a defroster door (220) that opens and closes a defroster passage opening (122) that blows conditioned air toward the window glass side of the vehicle. When the air conditioning mode is the foot mode in which the conditioned air is blown toward the lower body of the occupant,
21a, 222a) are opened.

In this way, the opening / closing portions (221a, 222a) of the defroster door (220) are opened while sufficiently heating the occupant in the foot mode in which the conditioned air is blown toward the lower body of the occupant. The effect of preventing fogging of the window can be obtained by the stable minute air.

The reference numerals in parentheses of the above means indicate the correspondence with the specific means described in the embodiments described later.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIGS. 1 to 4 show a first embodiment of the present invention, and a specific configuration thereof will be described below. FIG. 1 shows an overall configuration of an air conditioner for a vehicle to which the present invention is applied.

The air conditioner 100 has a blower unit 11
0 and a temperature control unit (hereinafter, referred to as a temperature control unit) 120, and are disposed in front of the instrument panel in front of the vehicle cabin.

In the blower unit 110, an inside / outside air switching door 200 is provided in an inside / outside air switching box 111 made of polypropylene, and a blower 116 is provided in a scroll case 115 communicating with the inside / outside air switching box 111. It is a thing. The inside / outside air switching door 200 selectively opens / closes the inside air or outside air by opening / closing the inside air introduction duct 112a, the inside air introduction port 112 or the outside air introduction port 113 which forms the air passage in the outside air introduction duct 113a by a control means (not shown). To the blower 116. Incidentally, the air conditioning mode is divided into an inside air mode in which the inside air introduction port 112 is opened to introduce the inside air and an outside air mode in which the outside air introduction port 113 is opened to introduce the outside air, depending on the open / close state of the inside / outside air switching door 200.

The motor 118 of the blower 116 is voltage-controlled by a not-shown electronic control unit via a blower controller, and drives the fan 117 so that the amount of air blows is variable. , And is blown from the blowing unit 119 to a temperature control unit 120 described later.

The temperature control unit 120 is provided with an evaporator 125 for cooling the blown air and a heater 126 for heating the blown air in a temperature control case 121 formed of a thin wall of polypropylene. The air blown into the temperature control case 121 from the outlet 119 of the scroll case 115 passes through the evaporator 125 and is cooled by the latent heat of evaporation of the refrigerant flowing inside. When the air mix door 210 is opened and closed by control means (not shown), the air flow path passes through the heater 126 and is heated by heat exchange with warm water flowing inside, and the air bypasses the heater 126. The flow path X is selected, and the air temperature is adjusted according to the ratio between the heated air and the cooled air passing through both air flow paths.

Further, a defroster duct 122a for forming an air flow path toward the window glass in front of the vehicle cabin and a face duct 123a for forming an air flow path toward the upper body of the occupant are provided downstream of the temperature control case 121 in the air. A foot duct 124a is provided to form an air flow path toward the lower body of the occupant. Then, each duct 122a, 1
A defroster door 220, a face door 230, and a foot door 240 are provided in the defroster outlet 122, the face outlet 123, and the foot outlet 124 which form the air flow passages in 23a and 124a. By opening and closing in conjunction with each other (described later), the conditioned air blows out from each of the selected outlets 122, 123, and 124 to each of the ducts 122a, 123a, and 124a. Incidentally, depending on the open / close state of each of the doors 220, 230 and 240, the air conditioning mode is a face mode in which the face outlet 123 is opened, a bi-level mode in which the face outlet 123 and the foot outlet 124 are opened, and a foot outlet 124 is opened. Foot mode, foot outlet 1
24 and a foot differential mode in which the defroster outlet 122 is opened, and a differential mode in which the defroster outlet 122 is opened.

The doors 200, 210, 220,
230 and 240 are rotating shafts 201, 211 and 2 respectively.
It is a plate-like door that rotates about 20a, 231, 241.

Next, details of a door which is a main part of the present invention will be described with reference to FIGS. In the first embodiment, of the doors 200 to 240, the door 200 is applied to the defroster door 220. As shown in FIG. It is provided.

The rotating shaft 220a has a hollow inside and has an outer shaft 221 forming a first rotating shaft, and a middle shaft 222 inserted into the outer shaft 221 and forming a second rotating shaft. Consisting of The outer periphery of the middle shaft 222 contacts the inner periphery of the outer shaft 221 and is rotatable. An outer shaft hole 221a serving as a first through hole is provided in a direction intersecting with the axial direction of the outer shaft 221 to form an opening 221b extending in the axial direction. Further, the middle shaft 222 is also provided with a middle shaft hole 222a forming a second through hole having an opening 222b, similarly to the outer shaft 221. Here, the opening area of the opening 221b of the outer shaft 221 is increased by increasing the width in the circumferential direction, so that the opening 2
The opening area of the opening 222b is set to be larger than the opening area of the opening 22b. Then, on one end side of the outer shaft 221 and the middle shaft 222 in the longitudinal direction,
Outer link 22 having pins 223a, 224a, respectively
3. The middle link 224 is fixed. Here, the longitudinal direction of each link 223, 224 corresponds to each shaft hole 221.
a, 222a.

A door plate 225 is provided on the outer periphery of the outer shaft 221 so as to be symmetrical with respect to the outer shaft hole 221a in a direction intersecting the penetrating direction of the outer shaft hole 221a. The seal packing 226 for ensuring the sealing property with the temperature control case 121 is adhered.

The outer shaft 221 and the middle shaft 222
As shown in FIG. 3, a predetermined rotation is performed by a link mechanism 260 in which the outer link 223 and the respective pins 223a and 224a of the middle link 224 engage with the outer link groove 251 and the middle link groove 252 of the link plate 250. It operates in the moving direction and the rotation angle. This link mechanism 260
Is linked with an air-conditioning mode changeover switch provided on an air-conditioning panel in the passenger compartment, and forms a control means for opening and closing the defroster door 220 and the other doors 230 and 240 in the same manner.

The link plate 250 is turned to positions corresponding to the circumferential rotation angles θ1, θ2, θ3, θ4, θ5 of the plate rotation shaft 253 so as to correspond to the face, bilevel, foot, foot differential, and defroster modes. Move. First, at the rotation angle θ1, the outer link 223 is set to be oriented in the vertical direction, and the middle link 224 is set to the outer link 223.
To be inclined with respect to The engagement positions of the pins 223a and 224a and the link grooves 251 and 252 in this state are point a and point f, respectively. And
When the link plate 250 rotates in the direction A (rotates toward the rotation angle θ5), each of the links 223 and 224 is rotated.
Rotate in the B direction. Specifically, the outer link 223 keeps the same position as the point a when the pin 223a engages at the points b and c of the outer link groove 251 and rotates in the direction B as the pin 223a engages with the points d and e. I do. In addition, middle link 224
When the pin 224a is engaged at the point g of the middle link groove 252, the pin 224a keeps the same position as the point f, rotates in the direction B at the point h,
At points i and j, the rotational position at point h is maintained.
Further, when the link plate 250 is rotated to the position of the rotation angle θ3, that is, the outer link 223 is engaged at the point c of the outer link groove 251 and the middle link 224 is h of the middle link groove 252.
When engaged at points, the outer link 223 and the middle link 2
24 overlap each other in the longitudinal direction.

As the links 223 and 224 rotate, the outer shaft hole 221a and the middle shaft hole 222a provided in the shafts 221 and 222 also rotate simultaneously. The positional relationship will be described with reference to FIG. FIG. 4 shows each shaft hole 221 with respect to the rotation angle of the link plate 250.
a and 222a are shown. Here, the shaft hole rotation angle is 0 when the position of the shaft hole in the vertical direction is 0,
The angle tilted counterclockwise is plus, and the angle tilted clockwise is minus. Link plate rotation angle θ1, θ
2, the middle shaft hole 222a is
The shaft holes 221a and 222a are closed to each other so as to intersect a. Then, at the link plate rotation angle θ3 (the outer shaft hole 221a keeps the same angle), the middle shaft hole 222a rotates to be vertical and communicates with the outer shaft hole 221a. Further, link plate rotation angles θ4, θ5
(The middle shaft hole 222a keeps the same angle), the outer shaft hole 221a rotates, and each shaft hole 221a, 22
2a are mutually closed.

Next, the operation and effect based on the above configuration will be described below.

As shown in FIG. 5A, the face corresponding to the rotation angles θ1 and θ2 of the link plate 250, in the bilevel mode, the door plate 225 of the defroster door 220 blows out the defroster via the seal packing 226. The mouth 122 is closed and, in addition, the outer shaft hole 2
21a and the middle shaft hole 222a close each other.

Next, as shown in FIG. 5B, in the foot mode corresponding to the rotation angle θ3 of the link plate 250, the door plate 225 is connected to the defroster outlet 122.
While the shaft is closed, the shaft holes 221a and 222a communicate with each other, and the openings 221b and
From 22b, minute air flows through the defroster duct 122a to the window glass side in front of the vehicle cabin.

Further, as shown in FIG. 5 (c), in the foot differential mode and the defroster mode corresponding to the rotation angles θ4 and θ5 of the link plate 250, each shaft hole 221a,
222a is closed again, the original door plate 225 sequentially widens the defroster outlet 122, and the conditioned air passes through the defroster duct 122a and blows out toward the front window glass side of the passenger compartment.

Thus, without providing the defroster door 220 (door plate 225) with a minute opening, the shaft holes 221a and 222a of the rotating shaft 220a are communicated with the defroster door 220 closed, and the minute air Can be supplied, and stable minute air can be supplied without being affected by the drift of the conditioned air in each of the units 110 and 120, the switching of the blowing capacity, the variation in the gap between the defroster door 220 and the defroster outlet 122, and the like. .

Further, the shaft holes 221a, 222a can communicate with each other or close in accordance with the rotational position of each shaft 221, 222 to form an opening / closing portion. Stable micro air can be supplied.

Further, since the opening area of the outer shaft hole 221a is made larger than the opening area of the middle shaft hole 222a, the processing of each shaft hole 221a, 222a becomes easy. Then, each pin 223a, 2
Hysteresis caused by the clearance between the shaft holes 24a and the link grooves 251 and 252,
By absorbing variations in the rotation positions of 1a and 222a, a necessary opening area for communication (here, the opening area of the middle shaft hole 222a) can be secured, and stable micro air can be supplied.

Further, in the foot mode in which the conditioned air is blown toward the lower body of the occupant, the heating of the occupant is sufficiently ensured and the shaft holes 22 of the defroster door 220 are combined.
The fogging prevention effect of the window can be obtained by the stable minute air by connecting 1a and 222a.

In the above description of the structure, at the link plate rotation angles θ4, θ5, each shaft hole 221a,
Each of the shaft holes 221a, 222a is closed because the door plate 225 opens the defroster outlet 122 with the original opening.
The blockage and communication of 222a has no effect on the air flow,
The shaft holes 221a and 222a may be connected to each other.

Further, the size of the opening area of the outer shaft hole 221a and the middle shaft hole 222a may be reversed with respect to the above embodiment.

Further, the longitudinal direction of each of the links 223 and 224 is made to coincide with the direction of penetration of each of the shaft holes 221a and 222a. However, this is not an essential condition, and the point is that the link mechanism 260 shown in FIG. What is necessary is just to ensure such a positional relationship between the shaft holes 221a and 222a.

(Second Embodiment) FIGS. 6 to 9 show a second embodiment of the present invention. The second embodiment is different from the first embodiment in that the structure of the rotating shaft 220a having a double structure is changed.

As shown in FIG. 6, the rotating shaft 220a has an inner hollow portion and an outer shaft 221 forming an outer rotating shaft.
And a middle shaft 222 inserted into the outer shaft 221 and forming a center shaft. The outer peripheral portion of the middle shaft 222 contacts the inner peripheral portion of the outer shaft 221 and reciprocates in the axial direction without rotating in the circumferential direction.

A plurality of outer shaft holes 221a forming first through holes are provided in a direction intersecting the axial direction of the outer shaft 221. Further, similarly to the outer shaft 221, the middle shaft hole 2 forming the second through hole is also formed in the middle shaft 222.
22a are provided in plurality. Here, each shaft hole 22
1a and 222a are arranged so that their positions coincide with each other in the axial direction, and the openings 221b and 2
The dimension between 22b is the same as or larger than the aperture dimension. In addition, the opening areas of the openings 221b and 222b are substantially the same, and the total sum of the opening areas is set to a size through which a predetermined minute air flows. An outer link 223 having a pin 223a is fixed to one end of the outer shaft 221 in the longitudinal direction.

On the outer peripheral portion of the outer shaft 221, the first
As in the embodiment, a door plate 225 extending in a direction intersecting with the penetrating direction of the outer shaft hole 221a is provided so as to be symmetrical, and the upper and lower surfaces thereof are made of urethane foam material. A seal packing 226 for ensuring the sealing property is bonded.

As shown in FIG. 7, the other end of the outer shaft 221 where the outer link 223 is provided is closed, and a spring 270 is provided inside the outer shaft 221 and the middle shaft 222 is provided.
Is biased toward the rib 254 side of the link plate 250 described later.

As shown in FIG. 8, the link plate 250 has an outer link groove 251, a plate rotation shaft 253, and a rib 25.
4 is provided, and the outer link 22 of the outer shaft 221 is provided.
The third pin 223a is engaged with the outer link groove 251 to form a link mechanism 260. The rib 254 has a convex portion 254a.
And a flat portion 254b, and the outer end 222d of the middle shaft 222 is in contact with the rib 254.

As in the first embodiment, the outer shaft 221 is operated by the link mechanism 260 in a predetermined rotation direction and rotation angle so as to correspond to each blowing mode. Then, when the link plate 250 is rotated to a position corresponding to the foot mode in the air conditioning mode, the outer end 222d of the middle shaft 222 contacts the convex portion 254a of the rib 254 of the link plate 250. At this time, the outer shaft 221 and the middle shaft 22
The two shaft holes 221a and 222a are located at the same position in the axial direction and communicate with each other.

As shown in FIG. 9, when the link plate 250 is rotated to a position corresponding to the face, bi-level, foot differential, and defroster modes in the air conditioning mode, the outer end 222d of the middle shaft 222 is connected to the link. The ribs 254 of the plate 250 are in contact with the flat portions 254b. At this time, the shaft holes 221a and 222a of the outer shaft 221 and the middle shaft 222 are offset from each other in the axial direction so as to close each other. .

Next, the operation and effects based on the above configuration will be described below.

With the rotation of the link plate 250, in the face and bi-level mode, the outer shaft 221 does not rotate and maintains the same position, and the door plate 225 of the defroster door 220 is defrosted via the seal packing 226. The outlet 122 is closed, and in addition, as shown in FIG. 9, the outer end 222 d of the middle shaft 222 is in contact with the flat portion 254 b of the rib 254 of the link plate 250, and The end 222c is urged toward the link plate 250 by the spring 270,
The outer shaft hole 221a and the middle shaft hole 222a close each other.

Next, when the pivot position of the link plate 250 is in the foot mode, the door plate 225 keeps the defroster outlet 122 closed, and as shown in FIG.
Abuts on the protrusion 254a of the rib 254 of the
70, the shaft holes 221a and 222a communicate with each other, and a small amount of air flows from the plurality of openings 221b and 222b through the defroster duct 122a to the window glass side in front of the vehicle compartment.

Further, when the rotation position of the link plate 250 is in the foot differential mode or the defroster mode,
2 is provided with the rib 2 of the link plate 250.
54, and is again urged by the spring 270 to make the shaft holes 22a as shown in FIG.
1a and 222a are closed, the original door plate 225 sequentially widens the defroster outlet 122, and the conditioned air blows through the defroster duct 122a toward the front window glass side of the vehicle compartment.

Thus, without providing the defroster door 220 (door plate 225) with a minute opening, the shaft holes 221a and 222a of the rotating shaft 220a are communicated with the defroster door 220 closed, and the minute air Can be supplied, and stable minute air can be supplied without being affected by the drift of the conditioned air in each of the units 110 and 120, the switching of the blowing capacity, the variation in the gap between the defroster door 220 and the defroster outlet 122, and the like. .

Further, by reciprocating the middle shaft 222 in the axial direction, the shaft holes 221a and 222a communicate with each other.
Since it is closed, a link mechanism for the middle shaft 222 is not required, and the cost can be further reduced.

Further, since the movement position of each of the holes 221a and 222a is not affected by the hysteresis of the link mechanism 260, a stable and minute air flow can be reliably supplied.

In the above description of the structure, when the link plate rotating position is in the foot differential mode or the differential mode, each shaft hole 2
The shaft holes 221a and 222a are closed as in the first embodiment.
May be communicated.

The shaft holes 221a, 222a
Each opening 221b has a large opening area.
Although 222b has a rectangular shape, it may be a round shape that facilitates drilling as long as the total area capable of supplying minute air is secured.

(Other Embodiments) In the first and second embodiments, the present invention has been described as being applied to the defroster door 220, but may be applied to other doors.
For example, if the present invention is applied to the inside / outside air switching door 200, the effect of preventing the fogging of the window glass can be obtained while introducing the minute outside air in the inside air mode and securing the heating function. Further, if the present invention is applied to the foot door 240, it is possible to set a more fine-grained air-conditioning mode in the bi-level mode, such that a small foot blowing is obtained mainly by face blowing.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an overall configuration of an air conditioner of the present invention.

FIG. 2 is a perspective view showing details of a defroster door according to the first embodiment of the present invention.

FIG. 3 is a schematic view showing the operation of a link plate, an outer link, and a middle link.

FIG. 4 is a relationship diagram showing a shaft hole rotation angle with respect to a link plate rotation angle.

FIGS. 5A and 5B are cross-sectional views showing the operation of the defroster door, wherein FIG. 5A is a fully closed state, FIG. 5B is a sectional view showing a shaft hole communicating state, and FIG.

FIG. 6 is a perspective view illustrating details of a defroster door according to a second embodiment of the present invention.

FIG. 7 is a side view including a partial cross-sectional view in a foot mode of the rotating shaft in FIG. 6;

FIG. 8 is a perspective view showing a link plate in FIG. 7;

FIG. 9 is a side view including a partial cross-sectional view of the rotary shaft in FIG. 6 except for a foot mode.

FIG. 10 is a perspective view showing a conventional air conditioning mode switching door.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 Air conditioner for vehicle 110 Blowing unit 112 Inside air inlet (air passage) 113 Outside air inlet (air passage) 120 Temperature adjustment unit 122 Defroster outlet (air passage) 123 Face outlet (air passage) 124 Foot Outlet (air passage opening) 200 Inside / outside air switching door 220 Defroster door 225 Door plate (plate portion) 230 Face door 240 Foot door 201, 220a, 231, 241 Rotation axis 221 External shaft (first rotation axis, outside) (Rotating axis) 221a Outer shaft hole (first through hole, opening / closing section) 222 Middle shaft (second rotating axis, middle axis) 222a Middle shaft hole (second through hole, opening / closing section)

Claims (6)

[Claims] 1. A plate-like portion (225) provided at an air passage opening (122) and fixed to a rotating shaft (220a) is rotated around the rotating shaft, and the air passage opening (122) is rotated. In the air conditioner door that opens and closes, the rotation shaft (220a) is provided with an opening and closing unit (221) that adjusts a communication state between an upstream side and a downstream side of the plate-shaped portion (225).
a, 222a), and when the plate-like portion (225) closes the air passage opening (122), the opening / closing portion (221a, 222a)
Is a door for an air conditioner, which is opened and closed. 2. The opening and closing unit (221a, 222a)
A first portion in which the inside of the rotation shaft (220a) is formed hollow;
Rotating shaft (221), a second rotating shaft (222) inserted into the first rotating shaft (221), and each of the rotating shafts (221, 222).
A first through-hole (221a) and a second through-hole (222a) provided respectively in a direction intersecting with the axial direction of the shaft. The rotating shafts (221, 222) rotate in conjunction with each other. ,
The first through hole (221a) and the second through hole (2
The air conditioner door according to claim 1, wherein each of the doors (22a) is communicated or closed. 3. The air conditioner according to claim 2, wherein an opening area of the first through hole (221a) is provided to be larger than an opening area of the second through hole (222a). Equipment door. 4. The opening and closing unit (221a, 222a)
An outer rotating shaft (221) having a hollow inside of the rotating shaft (220a); and a middle shaft (22) inserted into the outer rotating shaft (221).
2), a plurality of first through-holes (221a), a plurality of second through-holes provided such that their positions coincide with each other in a direction intersecting with the axial direction of each axis (221, 222). (22
2a), the center shaft (222) reciprocates in the axial direction with respect to the outer rotation shaft (221), and the plurality of first through holes (221).
2) The air conditioner door according to claim 1, wherein a) the plurality of second through holes (222a) are respectively connected or closed. 5. A blower unit (11) for blowing in introduced air.
0), a temperature adjusting unit (12) for cooling and heating the air blown from the blowing unit (110) and blowing it out as conditioned air.
0), provided in each of the units (110, 120), and rotated about a rotation axis (201, 220a, 231, 241) to form a plurality of air flow openings (112, 113, 122, 1).
23, 124) for opening and closing the doors (200, 22).
0, 230, 240) and control means for controlling the opening and closing of the plurality of doors (200, 220, 230, 240), wherein the rotating shaft of at least one of the doors (220) is provided. 2
20a) has opening / closing portions (221a, 222a) for adjusting a communication state between an upstream side and a downstream side of the door (220), and the control means determines that the door (220) is connected to the air passage opening (122). ), Wherein the opening / closing portions (221a, 222a) are opened and closed according to the air conditioning mode. 6. The defroster passage opening (122) for blowing conditioned air toward the window glass side of the vehicle.
A defroster door (220) that opens and closes the air conditioner. When the air conditioning mode is a foot mode that blows conditioned air toward the lower body of the occupant, the opening and closing unit (221a, 222)
The air conditioner for a vehicle according to claim 5, wherein a) is opened.