JP2002079818A - Door structure of air conditioning device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure sure sealing and smooth operation. SOLUTION: This structure is provided with a bracket 25 including a primary and a secondary door opening 21, 23 and a left and right pair of guide grooves 31, and a slide door 27 opening and closing the primary and secondary door opening 21, 23. The slide door is slidably supported by the guide grooves 31 through a locking part 37 at a front part thereof and is pivotally supported by an operation arm 29 pivotal around an arm axis 43 through a locking part 41 at a rear part thereof. Rise and tilt areas 33, 35 pushing the locking part 37 upward are provided at both ends of the guide grooves 31. The slide door 27 is gotten into tight contact with a peripheral edge of a door opening without any influence of width of the guide groove 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door structure of a vehicle air conditioner suitable for an automobile.

[0002]

2. Description of the Related Art Conventionally, in air conditioners for automobiles,
For example, Japanese Patent Laid-Open No. 2000-2000 discloses a door structure that switches between a state in which air taken into a unit case is passed through a cooling heat exchanger and a state in which air is passed through a cooling heat exchanger and a heating heat exchanger in this order. -190722 is known.

[0003] The outline of the door structure is as follows. When movable rods provided on the left and right sides of the door member slide along a guide groove, when the door member closes one passage, the other passage is opened. The switching is controlled in such a manner.

[0004]

Since the guide member is supported by the movable rod that slides along the guide member, play occurs between the guide member and the movable rod if the width of the guide groove is large. This play appears as a gap when the door member is fully closed, and it is difficult to ensure the sealing performance.

On the other hand, if the groove width of the guide groove is made to correspond to the diameter of the movable rod, play will be eliminated, but sliding resistance will occur and the operation will not be heavy, leading to a problem.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a door structure of a vehicle air conditioner capable of obtaining a reliable seal and smooth operation.

[0007]

According to a first aspect of the present invention, a first door and a second door are provided.
A bracket having a door opening and a pair of left and right guide grooves,
One engaging portion is slidably supported along the guide groove, and the other engaging portion is supported by a driving means by an operating arm rotatable around an arm axis as a fulcrum, and the first door opening, or A sliding door that opens and closes the second door opening, and has a rising inclined area that rises toward an edge at both ends of the guide groove.

Thus, the first door or the second door can be opened and closed by sliding the slide door along the guide groove by the operating arm. During the operation of the slide door, even if the width of the guide groove is wide, the slide door is raised by the inclined area when one of the locking portions approaches the end of the guide groove, and the other locking portion is rotated by the operating arm. By being pushed upward by the movement and making strong contact with the periphery of the door opening, a reliable sealing state can be obtained.

On the other hand, the area away from the rising slope area is a moving area irrelevant to the seal, so that a wide groove width can be obtained, and the locking portion slides smoothly along the guide groove, so that it is smooth. Operating state is obtained.

Further, according to the second aspect of the present invention, the slide door, the operating arm, and the bracket have a unit structure integrally assembled.

[0011] This facilitates the transport and assembly of the unitized door.

[0012]

According to the door structure of the air conditioner for a vehicle according to the present invention, the sliding door can be pushed up by the ascending and sloping region of the guide groove. A reliable sealing state can be obtained, and a smooth opening / closing operation state of the slide door can be obtained.

Further, the unit structure facilitates the transfer of the door and allows the door to be quickly mounted.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to FIGS.

In FIG. 5, reference numeral 1 denotes a blower arranged in the unit case 5 of the air conditioner 3.

The blower 1 rotates the air taken in from the intake box 7 by rotation, and
It functions to blow air toward the second cooling heat exchangers 11 and 13.

First and second cooling heat exchangers 11, 13
Are arranged in parallel so that the air passing through the filter 9 passes through the first cooling heat exchanger 11 and the second cooling heat exchanger 13 independently by the partition wall 15.

First and second cooling heat exchangers 11, 13
Is connected to a compressor, a condenser and an expansion valve (not shown) to form a refrigeration cycle. First and second cooling heat exchangers 1
The air that has passed through the heat exchangers 1 and 13 has passed through the heat exchanger 19 for heating as indicated by the dotted arrow through the mixing door 17 according to the present invention disposed in the unit case 5, The state is controlled to be switched to a state in which the vehicle does not pass through.

The mixing door 17 includes a bracket 25 having first and second door openings 21 and 23, as shown in FIG.
Sliding door 2 for opening and closing first and second door openings 21 and 23
7 and an operation arm 2 for sliding the slide door 27
9, the unit structure is easy to transport and assemble.

In this case, the first and second door openings 21 and 23 do not necessarily have to have a separate shape, but may have a shape in which they are integrally and continuously connected.

The bracket 25 includes the first and second door openings 2.
In addition to the guide grooves 31 on both sides 25a, outside
Is provided.

The guide groove 31 has upwardly inclined regions 33, 35 which rise toward the edges at both front and rear ends (left and right in the drawing). The forward ascending region 33 is
It functions to push up the front locking portion 37 provided in front of the slide door 27 (left side in the drawing).

When the front locking portion 37 is slid forward from the rear end of the guide groove 31 by the operating arm 29, the rear rising slope region 35 has an arrow acting on the locking portion 37 against the action acting in the direction of arrow A. So that the component force in the direction b works.
This is the initial operation area where smooth sliding is ensured.

The slide door 27 is provided with a seal member 39 such as packing along the outer peripheral edge, and is sized to open and close the first door opening 21 and the second door opening 23. The front of the slide door 27 is supported by a pin-shaped locking portion 37 facing the guide groove 31 described above. The diameter of the locking portion 37 is formed slightly smaller than the groove width of the guide groove 31, so that smooth sliding is possible without receiving a large sliding resistance.

The rear side of the slide door 27 is rotatably supported by the operating arm 29 via a locking portion 41.

The operating arm 29 is rotatable about a lever shaft 43. When the operating arm 29 rotates, the slide door 27 is moved to the first door opening 21 or the second door opening 23. The slide movement to is possible.

The operating arm 29 is disposed inside a support wall 45 rising from both sides of the housing 25,
5 and is fixedly supported on the rotatable arm shaft 43.

One of the arm shafts 43 is connected to the unit case 5
And extends outside. An extension of the arm shaft 43 is connected to a drive arm 49 driven by a drive means 47 such as an actuator, so that the drive arm 49 applies a rotating power.

On the other hand, the heat exchanger 19 for heating is supplied with heat by an engine (not shown), and has a vent outlet 51, a differential outlet 53, and a foot outlet 55 above the heat exchanger.

The vent outlet 51 is controlled by a vent door 57, and the differential outlet 53 and the foot outlet 55 are opened and closed by a differential and a foot door 59, respectively.

The foot outlet 55 has a MAX hot bypass door 61, and the MAX hot bypass door 61
Is opened, the hot air that has passed through the heating heat exchanger 19 is directly fed.

According to the door structure configured as described above,
The sliding door 27 is moved by the operating arm 29 into the guide groove 3.
1, the first door opening 21 and the second door opening 23 can be opened and closed. When the first door opening 21 is opened, the first and second cooling heat exchangers 11 and 13 are opened. The air that has been heat-exchanged flows toward the upper outlets 51 and 53. When the second door opening 23 is opened, the air heat exchanged by the first and second cooling heat exchangers 11 and 13 passes through the heating heat exchanger 19. The air exchanged by the heating heat exchanger 19 is supplied to each of the upper outlets 5.
Flow toward 1,53.

At the time of operation of the slide door 27,
When the front locking portion 37 approaches the edge of the guide groove 31,
As a result, the rear locking portion 41 is pushed upward by the operating arm 29 while being pushed upward by the ascending inclined regions 33 and 35. As a result, even if the groove width of the guide groove 31 is wide, the sliding is performed without being affected by the groove width. The sealing member 39 of the door 27 is in strong elastic contact with the peripheral edge of the door opening, so that a reliable sealing state can be obtained.

On the other hand, the area apart from the rising inclined areas 33 and 35 is a moving area irrelevant to the seal, so that a wide groove width can be obtained.
1 can be smoothly slid along, and a smooth operation state can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a door structure with a first door opening of a vehicle air conditioner according to the present invention.

FIG. 2 is a schematic sectional view showing a door structure in which a second door opening is opened.

FIG. 3 is a schematic side view showing a door structure in which a second door opening is opened.

FIG. 4 is a side view of the slide door.

FIG. 5 is a schematic sectional view of an air conditioner embodying the present invention.

[Explanation of symbols]

 Reference Signs List 21 first door opening 23 second door opening 25 bracket 27 slide door 29 operating arm 31 guide groove 33, 35 ascending area 43 arm shaft 47 driving means

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tomohiro Maruyama 5-24-15 Minamidai, Nakano-ku, Tokyo Calso Nick Kansei Corporation (72) Inventor Toshio Ohashi 5-24-15 Minamidai, Nakano-ku, Tokyo Calso Nick Kansei Corporation (72) Inventor Masato Ohno 5-24-15 Minamidai, Nakano-ku, Tokyo Calso F-term in Nick Kansei Corporation 3L011 BH02 CL02

Claims (2)

[Claims] 1. A first door opening (21) and a second door opening (2).
3), a bracket (25) having a pair of left and right guide grooves (31), and one locking portion (37) is slidably supported along the guide groove (31), and the other locking portion (37). 41) is driven by an arm shaft (43) by a driving means (47).
A sliding door (27) that is supported by an operating arm (29) that can rotate about a fulcrum, and that opens and closes the first door opening (21) or the second door opening (23).
A door structure for an air conditioner for a vehicle, characterized in that both sides of the guide groove (31) are provided with rising inclined areas (33) (35) rising toward the edge. 2. A sliding door (27) and an operating arm (2).
9. The door structure for an air conditioner for a vehicle according to claim 1, wherein the bracket (25) has a unit structure integrally assembled.