JP2002127730A - Air conditioner for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize an air conditioner for a vehicle in which a left and a right door can be used in common by providing a support structure which allows a rotational support part and a rotational driving part to be mounted on both ends of the rotary shaft of a door. SOLUTION: In an air-conditioning unit 20 for independently controlling the blow out of air-conditioning air, a first air mix door 31 and a second air mix door 32 are integrally provided with a first rotational shaft 31a and a second rotational shaft 32a. The structure of a bearing part 311 formed at both ends of the first and second rotary shafts 31a, 32a allows the rotary support part 311a, an end part of which is formed on a partition sheet 27 and the rotary drive member 311b, the other end of which transfers rotary driving force to be engaged. A first bearing part 311c and a second bearing part 311f are constituted so that they can be engaged with either of the rotary support part 311a or the rotary driving member 311b, and thus the first air mix door 31 and the second air mix door 32 can be used in common.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for a vehicle of an independent temperature control system, and more particularly, to a common use of door means serving as a blowing control means of an air conditioning unit.

[0002]

2. Description of the Related Art In recent years, this type of vehicle air conditioner has been required to control the temperature in a vehicle compartment carefully in order to eliminate dissatisfaction caused by a difference in temperature sensation or a difference in temperature preference among occupants. It has become For example, in order to eliminate the difference in the temperature sensation (hot and cold) between the occupants on the side receiving the sun and the side not receiving the sun, the left and right seats independently control the temperature separately. Temperature controlled air conditioning units are well known.

[0005] As shown in FIG. 5, an air conditioning unit 100 of the left and right independent temperature control system forms different conditioned air at the left and right sides of a vehicle compartment, that is, at a left seat side and a right seat side. In the air conditioning unit 100, an evaporator 110 for cooling the intake air and a heater core 120 for heating the cooling air are provided.
A partition plate 130 for dividing the air passage into left and right in the width direction is provided. Inside the left case 140, an outlet opening 150 communicating with the outlet on the left seat side in the vehicle interior, and an outlet opening in accordance with the outlet mode switching means. A plurality of flat control doors 160 for controlling the opening and closing of the section 150 and a flat air mix door 170 for controlling the blowing temperature are provided. Right case 180
Inside the air outlet 1 that leads to the air outlet on the right seat side in the passenger compartment
90, a control door 200, and an air mix door 210 are provided to blow out conditioned air from an outlet on the right seat side in the vehicle interior.

The control doors 160 and 200 and the air mix doors 170 and 210 are each formed integrally with a rotation shaft, and one end of the rotation shaft is provided on a partition plate 130 with a rotation support portion ( (Not shown), the other end of which is driven by a driving means (not shown) disposed on the side surface of the left and right cases 140 and 180 to transmit a driving force via a link mechanism (not shown). It is supported by a driving member (not shown). In addition, each door 160, 200, 170, 210
Are arranged symmetrically about the partition plate 130 and arranged on the same straight line.

In addition, the doors 160, 200, 17
The rotating shafts of the doors 0 and 210 having the same function and arranged in the left and right directions are supported by the rotating support portion and the rotating drive member because the above-described driving means is disposed left and right reversed. Left and right are reversed.

[0006]

By the way, the left and right doors can be formed in generally the same shape except for the direction in which the above-mentioned rotation support portion and the rotation drive member are supported. Therefore, if the rotation shaft provided on each of the doors 160, 200, 170, 210 and the support structure of the rotation support section and the rotation drive member are different, left and right doors are set separately. If the left and right doors are separately set, the number of molding dies increases, and the mold manufacturing cost increases.

In addition, when assembling the door to the air conditioning unit 100, it is necessary to perform management such that the difference between the left and right doors is distinguished by an identification display or the like, and there is a problem in assemblability.

Further, in the above-described air conditioning unit 100, the number of parts such as the door and the driving means constituting the blowout control means is increased, so that the number of assembling steps is increased.
A simple supporting structure and a supporting structure that can be easily assembled are required.

In view of the above, an object of the present invention is to provide
It is an object of the present invention to provide an air conditioner for a vehicle in which the right and left doors can be shared as a support structure in which a rotation support portion and a rotation drive member can be attached to both ends of a rotation shaft of the door.

[0010]

In order to achieve the above object, the technical means described in claims 1 and 2 is adopted. That is, according to the first aspect of the present invention, the first air passage (25) leading to the outlet on the left seat side in the vehicle compartment, the second air passage (26) leading to the outlet on the right seat side in the vehicle compartment, and First air passage (25) and second air passage (26)
A first door means (31, 40, 57) disposed in the first air passage (25) for controlling opening and closing, and a second air passage. (26) A second door means (32, 4
1, 58) and an air-conditioning unit (20) of a left-right independent temperature control system for independently controlling the blowing of conditioned air in the first air passage (25) and the second air passage (26). In the air conditioner for a vehicle, the first door means (31, 40, 5)
7) and the second door means (32, 41, 58)
The first rotating shaft (31a, 40a, 57a) and the second rotating shaft (32a, 41a, 58a) are provided integrally, and the first and second rotating shafts (31a, 40a, 57a) are provided.
, 32a, 41a, 58a), the bearings (311, 321) formed at both ends of the rotating support (311a) formed at the partition plate (27) at one end, and the rotating driving force at the other end. A structure for engaging with the rotating drive member (311b, 321b) to be transmitted and engaging with both the rotating support portion (311a) and the rotating drive member (311b, 321b). 1 door means (31, 40, 5)
7) and the second door means (32, 41, 58) can be commonly used.

According to the first aspect of the present invention, the first door means (31, 40, 57) and the second door means (32, 4) of the conventional air conditioning unit (20) of the independent left and right temperature control system.
1, 58), generally, the above-mentioned rotation support portion (311).
It can be formed in the same shape except for the direction in which a) and the rotation drive members (311b, 321b) are supported.

In view of the above, the present invention provides a bearing (311, 32).
1) is connected to the rotation supporting portion (311a) and the rotation driving member (31)
1b, 321b) so that they can engage with each other, one end of the bearing portion (311, 321) can engage with the rotation support portion (311a), and the other end can rotate with the rotation drive member (311).
b, 321b), the first door means (31, 40, 57) and the second door means (32, 41,
58) can be commonly used.

As a result, the first door means (31, 40,
57) and the second door means (32, 41, 58) can be used in common for the left and right, so that a separately manufactured mold is not required, and the cost can be reduced. In addition, in the conventional assembling, the left and right doors are distinguished from each other by an identification display or the like, and the assembling is performed.

According to the second aspect of the present invention, the bearing portions (311, 3
21) is a rotation support portion (311a) formed in a circular cross section having a predetermined length (L1) and a predetermined length (L1).
1) A first detent part (311d, 321d) having a circular cross-section and a convex portion at the tip of the circular cross-section.
Are engaged with both of the rotation driving members (311b, 321b) formed with the rotation support member (311b).
A first bearing (311c) formed by a circular groove corresponding to a) and a first detent portion (311d, 321d) in the depth direction of the first bearing (311c). Concave second detent part (311e, 321e)
And a second bearing portion (311f, 321f) formed with the second bearing portion.

According to the second aspect of the invention, specifically, the first bearing portion (311c) for supporting the bearing portions (311 and 321) on the rotation support portion (311a), and the rotation drive member (311). 3
11b, 321b) supporting the second bearing (311
f, 321f), the first door means (31, 40, 57) and the second door means (3
2, 41, 58) can be commonly used.

As a result, one end can be engaged with the rotation support portion (311a) regardless of whether the rotation support portion (311a) and the rotation drive members (311b, 321b) are disposed in the left or right direction, and the other end. Can be engaged with the rotation drive members (311b, 321b).

Further, the second rotation preventing portion (311e, 32
1e) formed second bearing portion (311f, 321)
By providing the method (f), the driving force of the driving means can be reliably transmitted.

The reference numerals in parentheses of the above means indicate the correspondence with the concrete means described in the embodiment described later.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.
A description will be given based on FIG. First, the ventilation system of the vehicle air conditioner is roughly divided into a blower unit 10 (not shown),
The air conditioning unit 20 is divided into two parts. The blower unit 10 is arranged offset from the center to the passenger seat side in the lower part of the instrument panel in the vehicle compartment, whereas the air conditioning unit 20 is arranged in the lateral direction of the vehicle in the lower part of the instrument panel in the passenger compartment. It is arranged at a substantially central portion of.

The blower unit 10 has a blower fan 11 composed of a well-known centrifugal multi-blade fan (sirocco fan). The blower fan 11 is disposed in a spiral scroll casing 12 and rotated by an electric motor (not shown). Driven. The air blown by the blower fan 11 is blown along the spiral shape of the scroll casing 12 as indicated by an arrow a.

A suction port (not shown) of the blower fan 11
Air is sucked in through an inside / outside air switching box (not shown) which is provided on the upper side of the vehicle (on the front side in FIG. 1). As is well known, the inside / outside air switching box has an inside air (vehicle interior air) intake port, an outside air (outside vehicle interior air) intake port, and a switching door for switching these intake ports to open and close.

The air conditioning unit 20 is of a type in which an evaporator (heat exchanger for cooling) 22 and a heater core (heat exchanger for heating) 23 are both integrated in one common air conditioning case 21. . The air-conditioning case 21 is made of a molded article of a resin having a certain degree of elasticity such as polypropylene and having excellent strength, and includes a plurality of divided cases having divided surfaces in the vertical direction (vehicle vertical direction) in FIG. Become. After storing the heat exchangers 22 and 23 and devices such as doors to be described later, the plurality of divided cases are integrally connected by fastening means such as metal spring clips and screws to form the air conditioning case 21.
Is configured.

The air-conditioning unit 20 is arranged at a substantially central portion of a lower part of an instrument panel in a vehicle cabin in the form shown in FIGS. Further, an air inlet 24 is provided at the most forward part of the air conditioning case 21. The conditioned air blown from the blower unit 10 flows into the air inlet 24. The air inlet 24 is open on the side of the air conditioning case 21 on the passenger seat side for connection to the air outlet of the scroll casing 12 of the blower unit 10.

An evaporator 22 is disposed in the air conditioning case 21 immediately after the air inlet 24. This evaporator 2
Numeral 2 is arranged so as to cross the passage in the air conditioning case 21 in a thin form in the vehicle front-rear direction. Therefore, the blast air from the air inlet 24 flows into the front surface of the evaporator 22 extending in the vehicle vertical direction. The evaporator 22 cools the conditioned air by absorbing the latent heat of evaporation of the refrigerant in the refrigeration cycle from the conditioned air, as is well known. Here, evaporator 2
Reference numeral 2 denotes a well-known lamination type, which is formed by laminating a large number of flat tubes formed by laminating two metal thin plates made of aluminum or the like with corrugated fins therebetween and brazing them integrally.

A heater core 23 is arranged at a predetermined interval on the downstream side of the air flow (rear side of the vehicle) of the evaporator 22 so as to be inclined toward the rear side of the vehicle. This heater core 2
Numeral 3 reheats the cold air that has passed through the evaporator 22, in which high-temperature hot water (engine cooling water) flows and heats the air using the hot water as a heat source.
The heater core 23 is also a well-known one, and is formed by laminating a large number of flat tubes formed by joining thin metal plates made of aluminum or the like into a flat cross section by welding or the like with corrugated fins interposed therebetween and integrally brazing them. .

The air passage inside the air conditioning case 21 is formed so as to extend in the vehicle front-rear direction as shown in the figure. The first and second air passages 25 and 26 are partitioned. That is, the first air passage 25 is a passenger seat side air passage and is close to the blower unit 10. The second air passage 26 is a driver's seat side air passage, and is farther from the blower unit 10 than the first air passage 25.

The partition plate 27 has two air passages 25, 2
6 is arranged in the vehicle front-rear direction from the downstream side of the evaporator 22 to the downstream end of the heater core 23 through the periphery of the heater core 23. The partition plate 27 can be formed integrally with the air-conditioning case 21 with resin, and a cutout portion for avoiding interference with the heater core 23 is formed at a position where the heater core 23 is disposed.

The heater core 23 is connected to the two air passages 2.
5 and 26, and the inside of the heater core 23 is connected to the two air passages 25 and 26 at the same position as the partition plate 27 by the flat surface of the flat tube or the fin surface of the corrugated fin. It is partitioned. On the other hand, an air guide wall 28 having the following shape is formed in a portion of the air conditioning case 21 located on the vehicle front side of the evaporator 22. The air guide wall 28 is generally inclined toward the rear of the vehicle as the distance from the position of the air inlet 24 increases. In the present embodiment, two step portions 28a and 28b are provided in the middle of the air guide wall 28 in the vehicle left-right direction.
Is formed. The steps 28a and 28b are formed along the front-rear direction of the vehicle, and promote the air flow blown from the blower unit 10 to the right side of the vehicle to change its direction toward the rear side of the vehicle.

The two air passages 25 in the air conditioning case 21
In the upper part of the heater core 26, air (cold air) bypasses the heater core 23, respectively.
The first and second cold air bypass passages 29 and 30 through which the air flows are formed. Also, the first and second air passages 25, 26
In the area between the heater core 23 and the evaporator 22, the air volume of the hot air heated by the heater core 23 and the cold air that bypasses the heater core 23 through the first and second cold air bypass passages 29 and 30 is provided. Plate-shaped first and second air mix doors 31, 32 for adjusting the ratio are arranged.

Here, the first and second air mix doors 3
First and second rotation shafts 31a and 32a are integrally connected to the first and second rotation shafts 31, 32, respectively. These two rotating shafts 31a, 32a
Are arranged so as to be aligned on the same straight line along the left-right direction of the vehicle. Then, the first and second rotating shafts 31a, 32
One end of the rotation supporting portion 311 provided on the partition plate 27
a (described later) so as to be rotatable.

The first and second rotating shafts 31a, 32a
Are connected to and driven by blow-mode switching actuator mechanisms 310 and 320 including a servomotor or the like via a rotation drive member 311b (described later) and a link mechanism (not shown). I have.

Then, the first and second air mix doors 3
The first and second rotating shafts 31a and 32a are rotatable in the vertical direction of the vehicle together with the first and second rotating shafts 31a and 32a. A temperature adjusting means for independently adjusting is provided. In the air-conditioning case 21, a wall surface 33 that extends vertically with a predetermined interval between the heater core 23 and the heater core 23 is formed integrally with the air-conditioning case 21 on the downstream side of the heater core 23 (on the rear side of the vehicle). I have. Due to the wall surface 33, the first and second upward portions immediately after the heater core 23.
Of the first and second air passages 25,
26 are formed.

The downstream side (upper side) of the first and second hot air passages 34 and 35 merges with the first and second cold air bypass passages 29 and 30 above the heater core 23, so that the cool air and the hot air are First and second cold / hot air mixing spaces 36 and 37 for mixing
Are formed in the first and second air passages 25 and 26, respectively. The left and right first and second defroster openings 38 and 39 corresponding to the first and second air passages 25 and 26 respectively are provided at a portion on the vehicle front side of the upper surface of the air conditioning case 21.
Is open. These defroster openings 38, 39
The air-conditioning air whose temperature is controlled flows in from the first and second cold / hot air mixing spaces 36 and 37, is connected to a defroster outlet via a defroster duct (not shown), and from the defroster outlet, Blows wind toward the inside of the vehicle's front window glass. The first and second defroster openings 38 and 39 are opened and closed by first and second defroster doors 40 and 41, respectively.

The first and second defroster doors 40 and 41 are integrally connected with first and second rotating shafts 40a and 41a. The two rotating shafts 40a and 41a are arranged so as to be aligned on the same straight line along the left-right direction of the vehicle.
One end of each of the first and second rotating shafts 40a and 41a is
It is rotatably supported via a rotation support portion 311a (described later) provided on the partition plate 27.

The first and second rotating shafts 40a, 41a
Are connected to and driven by blow-mode switching actuator mechanisms 310 and 320 including a servomotor or the like via a rotation drive member 311b (described later) and a link mechanism (not shown). I have.

Then, the first and second defroster doors 40,
When the button 41 is operated to the position indicated by the alternate long and short dash line, the first and second defroster openings 38 and 39 are fully opened and the first and second communication ports 66 and 67 are closed. These communication ports 66, 67 are formed in the first and second air passages 25, 26, respectively, and the first and second cold / hot air mixing spaces 36,
It becomes a passage for flowing air from 37 to a face and a foot opening side described later.

Further, as shown in FIG. 1, a total of ten left and right face openings 43 to 52 are provided in a portion of the upper surface of the air-conditioning case 21 on the rear side of the vehicle (closer to the occupant). In the face openings 43, 44, 49, and 50 on the center side of the face openings 43 to 52, the conditioned air whose temperature is controlled from the cold / hot air mixing spaces 36 and 37 is transmitted through the communication ports 66 and 67. Inflow.

Among them, the left and right center face openings 4
Left and right center face ducts are connected to 3 and 44, respectively, and communicate with the center face air outlets disposed above the central portion in the left and right direction of the instrument panel through the ducts. Then, the wind is blown out from the outlet toward the occupant head in the center of the passenger compartment. The center face opening 4
Left and right side face ducts are respectively connected to left and right side face openings 45 to 48 disposed on both sides of the vehicle in the left and right directions of the vehicle. Communicate with the face outlet. Then, the wind is blown out from the outlet toward the occupant head side or the vehicle side window glass on the left and right sides of the vehicle compartment. As is well known, the side face outlet is provided with a wind direction changing device that is manually operated, and by adjusting the direction of the wind direction plate of the wind direction changing device, the windshield changes to the occupant head side or the side window glass of the left and right sides of the vehicle interior. It is possible to blow wind toward it.

The left and right side face openings 45-45
48 is in direct communication with the cold / hot air mixing spaces 36, 37, so that the cold / hot air mixing spaces 36, 37 are always in the full blowout mode regardless of the operation positions of the defroster doors 40, 41 and the foot face switching doors 57, 58. Air from the 37 can be blown out. The center face opening 4
The left and right rear face openings 49 and 50 arranged closer to the center than the third and 44 are connected to the auxiliary rear face opening 5 via a duct (not shown) outside the air conditioning case 21.
1 and 52, and the openings 51 and 52 are connected to rear face passages 53 and 54 provided in the air conditioning case 21.
Connected to.

The rear face passages 53, 54
A rear face duct (not shown) is connected to the open ends 53a and 54a of the rear seat, and blows wind toward the head side of a rear-seat occupant from a rear face outlet provided at a tip of the duct. In the air-conditioning case 21, left and right foot air inlets 55, 56 are opened in the air passages 25, 26, respectively, at positions on the vehicle rear side of the cold / hot air mixing spaces 36, 37. This foot air inlet 5
5 and 56 are provided opposite to the center face openings 43 and 44 and the rear face openings 49 and 50, and are opened and closed by foot face switching doors 57 and 58 provided in each of the air passages 25 and 26, respectively. Is done.

The first and second foot face switching doors 57 and 58 have first and second pivot shafts 57a and 58a, respectively.
Are joined together. These two rotating shafts 57a, 58
“a” is arranged so as to be aligned on the same straight line along the left-right direction of the vehicle. Then, the first and second rotation shafts 57a, 5
One end of 8a is connected to a rotation support portion 31 provided on a partition plate 27.
It is rotatably supported via 1a (described later).

The first and second rotating shafts 57a, 58a
Are connected to and driven by blow-mode switching actuator mechanisms 310 and 320 including a servomotor or the like via a rotation drive member 311b (described later) and a link mechanism (not shown). I have.

The air from the foot air inlets 55, 56 flows into the front seat foot openings 60, 61, and further blows out to the feet of the occupant of the front seat through a front seat foot duct (not shown) and a front seat air outlet. . In addition, foot air inlets 55, 5
Part of the air from 6 flows through the rear foot passages 62, 63 to the rear foot openings 64, 65, from there through a rear seat foot duct (not shown) and a rear seat outlet. The wind blows to the feet of the rear passengers.

The first and second defroster doors 40,
41 and first and second foot face switching doors 5
Reference numerals 7 and 58 denote blower mode switching door means, which are disposed in the two air passages 25 and 26 on the left and right sides.
The air-mixing doors 31 and 32 are used to independently control the switching of the blowing mode for blowing the conditioned air whose temperature has been adjusted into the vehicle interior.

Next, the first and second air mixing doors 31 and 32, the first and second defroster doors 40 and 41, and the first and second foot face switching doors 57, which are main parts of the present invention, are provided. , 58 will be described with reference to FIGS. 3 (a), 3 (b) and 3 (c).

First, as shown in FIG. 3 (a), each of the above-mentioned doors is divided into a left and a right air passage 25.
The first doors 31, 40, and 57 are disposed on the side, and the second doors 32, 41, and 58 are disposed on the second air passage 26 side, and one end is provided on the partition plate 27. Dynamic support member 31
1a and the other end are assembled and supported by a rotation driving member 311b that transmits the driving force from the actuator mechanisms 310 and 320 via a link mechanism (not shown).

The rotation support member 311a has a circular section extending in the axial direction and is formed with a predetermined length (for example, L1). The first rotation shafts 31a, 40a, 57a and the second rotation shaft of each door are provided. It is engaged with bearings 311 formed at both ends of the driving shafts 32a, 41a, 58a. The rotation support member 311a may be formed integrally with the partition plate 27.

Next, the rotary drive member 311b is formed in the same shape as the rotary support member 311a up to a predetermined length (L1), and the tip (dimension = L2) is shown in FIG. As shown in the figure, a first detent part 311d having a detent function by being formed into a convex shape from a circular shape is integrally provided. And, this rotation drive member 311b is
From the outside of the left and right sides of the air-conditioning case 21, the bearings 3 of each door
11 is engaged. The rotation drive member 31
1b may be formed integrally with a link member that is a component of the link mechanism.

Here, the structure on the bearing portion 311 side is shown in FIG.
(B) and FIG. 3 (c), the rotation support member 3
The circular groove corresponding to the shape of 11a has a predetermined depth (L
1) The second bearing formed in a concave shape corresponding to the shape of the first bearing portion 311c formed separately and the first detent portion 311d formed at the distal end portion (L2) of the rotation driving member 311b. Bearing portion 31 provided with non-rotating portion 311e
1f.

As a result, the rotation supporting member 311a is engaged up to the predetermined depth (L1), and the predetermined depth (L1) is engaged.
Up to the tip (L2) is engaged with the rotation drive member 311b, so that the first bearing 311c is supported by the rotation support member 311a, and the second bearing 311f is supported by the rotation support member 311a.
The rotation of the door can be controlled by receiving the transmission of the driving force from the first rotation preventing portion 311d of the rotation driving member 311b.

The second bearing 311f is formed in the depth direction of the first bearing 311c so that the left and right bearings 311 have the same shape, so that the left and right doors can be commonly used.

The driving force of the actuator mechanisms 310 and 320 is formed by engaging the first rotation preventing portion 311b formed on the rotation driving member 311b with the second rotation preventing portion 311e formed on the bearing portion 311. And the rotation of each door described above can be controlled.

Next, how these doors are assembled will be described. First, by inserting the bearing 311 at one end of each door into the rotation support member 311a provided on the partition plate 27, the door is housed in the air passages 25 and 26, and then from the outside of the side surface of the air conditioning case 21. The assembling of the door is completed by inserting the rotation drive member 311b into the bearing 311 at the other end.

Next, the operation of the vehicle air conditioner of this embodiment, which controls the temperature independently for the left and right sides, will be described. First, an air-conditioning operation panel is provided on each of the left and right sides, and both the actuator mechanisms 310 and 320 are provided.
When a user operates an operation switch of an air-conditioning operation panel (not shown), the air-conditioning operation is started, and operation signals from various operation members provided on the air-conditioning operation panel and sensor signals from various sensors for air-conditioning control are provided. Is input to a well-known electronic control unit (not shown), and the output signals of the electronic control unit output the two actuator mechanisms 310,
The positions of the first and second air mix doors 31 and 32 are adjusted independently by automatically controlling the amount of rotation of the respective 320. As a result, the two left and right air passages 25, 2
The temperature of the air blown out from 6 can be independently controlled to an arbitrary temperature separately for the left seat side and the right seat side.

The blowing mode is the same as the defroster door 4.
0 and 41 and the operation positions of the foot face switching doors 57 and 58 are selected, so that the two actuator mechanisms 31
The rotation amounts of 0 and 320 are automatically controlled, and well-known blowing modes (a face blowing mode, a bilevel blowing mode, a foot blowing mode, a foot defroster blowing mode, and a defroster blowing mode) are executed separately for the left and right sides.

According to the vehicle air conditioner of one embodiment described above, the structure of the bearing 311 is formed so that the rotation support 311a and the rotation driving member 311b can be engaged with each other. Of the doors 31, 40, 57, 32, 41, and 58 can be used in common by using one end of the door 31 and the rotation driving member 311 b. it can.

As a result, each door 31, 40, 57, 3
Out of 2, 41, and 58, the left and right can be used in common, and the separately manufactured molds are not required, and the cost can be reduced. In addition, in the conventional assembling, the left and right doors are distinguished from each other by an identification display or the like, and the assembling is performed.

Further, by providing the second bearing portion 311f having the second detent portion 311e, the driving force of the actuator mechanisms 310, 320 can be transmitted reliably, and the doors 31, 40, 57, 32, 41 and 58 can be controlled for rotation.

Further, the bearing 311 provided with the first bearing 311c and the second bearing 311f is provided with the rotation support 311.
Since the engagement can be performed by inserting the rotation driving member 311b and the rotation driving member 311b, a simple assembly can be performed. As a result, even if the number of doors increases, a significant increase in the number of assembly steps can be suppressed.

(Other Embodiments) In the above embodiment, the second
Of the first detent portion 311d formed at the tip (L2) of the rotation drive member 311b.
Although the description has been made with the 11e provided, the present invention is not limited to this, and a rectangular detent-shaped detent portion corresponding to this shape by forming a rectangular detent portion on the rotation driving member may be used. FIG.
As shown in (a) to (c), the rotation drive member 321b
Is formed in the same shape (shown in FIG. 4B) as the rotation support member 311a up to a predetermined length (L1), and the tip (dimension = L2) is shown in FIG. 4C. In addition, a first detent portion 321d formed from a circular shape into a rectangular shape and having a detent function is integrally provided.

The structure on the bearing portion 321 side is shown in FIG.
As shown in FIG. 4B and FIG.
The circular groove corresponding to the shape of 11a has a predetermined depth (L
1) The first bearing part 311c formed separately and the second detent shape formed corresponding to the shape of the first detent part 321d formed at the tip end (L2) of the rotation drive member 321b. Bearing portion 32 provided with non-rotating portion 321e
1f.

As a result, the rotation support member 311a is engaged up to the predetermined depth (L1), and the predetermined depth (L1) is engaged.
By being engaged with the rotation drive member 321b up to the tip (L2), the first bearing 311c is supported by the rotation support member 311a, and the second bearing 321f is supported by the rotation support member 311a.
The rotation of the door can be controlled by receiving the transmission of the driving force from the first rotation preventing portion 311d of the rotation driving member 311b.

Further, in the above embodiment, the first and second defroster doors 40 and 41 and the first and second foot face switching doors 57 and 58 are provided with the blowing mode switching door means and the first and second foot face switching door means. The air conditioning unit 20 of the left and right independent air conditioning system having the second air mixing doors 31 and 32 has been described in recent years. However, in recent years, the temperature adjustment door and the air outlet mode switching have been performed in order to more finely independent left and right air conditioning control. The number of mounted doors is increasing. For example, 5 to 6 sheets are required on one left side, such as a cold air bypass switching door that switches the amount of air that bypasses the cool air from the evaporator 22 to the heater core 23, and a blowing mode switching door that blows out to the right or left rear seat foot or face of the vehicle. There is an air conditioning unit. Therefore, by applying the bearings 311 and 321 of the present invention to these, it is possible to suppress a significant increase in the number of molds and assembling steps, and to suppress an increase in cost.

In the above embodiment, the present invention is applied to the rotating shaft of a plate-shaped door. However, the present invention may be applied to a rotating shaft of a film door or a rotary door.

[Brief description of the drawings]

FIG. 1 is a plan view showing a configuration of a blower unit and an air conditioning unit of a vehicle air conditioner according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the air conditioning unit of FIG.

3A is a partial cross-sectional view showing a rotation axis of left and right doors according to an embodiment of the present invention, FIG. 3B is a cross-sectional view showing a cross section AA of the rotation axis, and FIG. It is sectional drawing which shows the cross section BB of a rotating shaft.

FIG. 4A is a partial cross-sectional view illustrating a rotation axis of left and right doors according to another embodiment, and FIG. 4B is a cross-section CC of the rotation axis.
And (c) is a sectional view showing a section DD of the rotating shaft.

FIG. 5 is an exploded perspective view showing a schematic configuration of an air conditioning unit according to the related art.

[Explanation of symbols]

Reference Signs List 20 air conditioning unit 25 first air passage 26 second air passage 27 partition plate (partition plate) 31, 32 first and second air mix doors (first and second door means) 40 , 41 ... first and second defroster doors (first and second defroster doors)
.. 57, 58... First and second foot face switching doors (first and second door means) 31a, 40a, 57a... First rotation shafts 32a, 41a, 58a. Rotating shaft 311 321 Bearing part 311 a Rotating support part 311 b 321 b Rotating driving member 311 c First bearing part 311 d 321 d First detent part 311 e 321 e Second detent Part 311f, 321f ... second bearing part

Claims (2)

[Claims] 1. A first air passage leading to an air outlet on the left seat side in a vehicle interior.
, An air passage (25), a second air passage (26) leading to an air outlet on the right seat side in the passenger compartment, and the first air passage (25) and the second air passage (26). The first air passage (25)
First door means (31,
40, 57); second door means (32, 41, 58) disposed in the second air passage (26) for controlling blow-out; and the first air passage (25) and the second door means. 2 air passages (2
6) The air conditioner for a vehicle, comprising: an air conditioning unit (20) of a left-right independent temperature control type for independently controlling the blowing of the conditioned air by the first door means (31, 40, 57) and the second air conditioner. The second door means (32, 41, 58) has a first rotation axis (31a, 40a, 57a) and a second rotation axis (32
a, 41a, 58a) are provided integrally, and the first and second pivots (31a, 40a, 57a, 32a) are provided.
a, 41a, 58a) formed at both ends of the bearing (31)
1, 321) is engaged at one end with a rotation support portion (311a) formed on the partition plate (27) and at the other end with a rotation drive member (311b, 321b) transmitting a rotation drive force. And the first door means (31, 4) can be engaged with both the rotation support portion (311a) and the rotation drive members (311b, 321b).
0, 57) and said second door means (32, 41, 58)
An air conditioner for a vehicle, wherein the air conditioner can be commonly used. 2. The bearing portion (311, 321) has a predetermined length (L1) and is formed in a circular cross-section with a rotation support portion (311a) and the predetermined length (L1). Is formed in the circular cross section, and a first detent part (311d, 321) having a convex shape is formed at the tip of the circular cross section.
d) forming the rotation drive member (311b, 321)
b), the first bearing portion (311c) formed by a circular groove corresponding to the rotation support portion (311a); and the first bearing portion (311b). 31
1c) in the depth direction of the first detent portion (311d, 311d).
21d), the concave second detent part (311
e, 321e) formed on the second bearing portion (311f,
321f). The air conditioner for a vehicle according to claim 1, further comprising: