JPH01141116A - Closing gear - Google Patents

Abstract

PURPOSE:To control a decrease in air volume discharged from a selected discharge opening by shifting a membraneous member provided with an opening for opening at least one of plural discharge openings so as to open or close discharge openings except one. CONSTITUTION:A discharge opening switch mechanism 11 for supplying air to each area inside a vehicle is set on the downstream side of a ventilation duct in an air conditioner. And the discharge opening switch mechanism 11 opens each of discharge openings 13-15 for a defroster, a center ventilation, and a heater on each side of a case 12, and also a film damper 23 with each opening 25-27 corresponding respectively to each discharge opening 13-15 provided in the case 12 in a freely slidable state. And the film damper 23 is connected to a drive shaft 31 via a drive arm 30. Furthermore, a switch plate 33 for opening or closing a side ventilation discharge opening 16 according to rotation of the drive arm 30, is formed integrally with the drive arm 30.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an opening/closing device that opens and closes an outlet that blows air toward a room, and is particularly suitable for use in a vehicle air conditioner.

[Prior Art] For example, in general, in a vehicle air conditioner, a defroster outlet for blowing air toward the windshield of the vehicle, a defroster outlet for blowing air toward the windshield of the vehicle, and a vent near the feet of vehicle occupants are used as the outlet for discharging air into the vehicle interior. There are four main ventilation outlets: a heater outlet for blowing air to the vehicle occupants, a center ventilation outlet for blowing air toward the chest area of vehicle occupants, and a side ventilation outlet for blowing air from both sides of the vehicle. It has an air outlet.

Each of the defroster outlet, heater outlet, and center ventilation outlet is equipped with a damper that opens and closes each outlet, and the vehicle occupant operates the outlet switching lever provided on the operation panel. This was used to open and close each outlet and adjust the air volume.

[Problems to be solved by the invention] However, the side ventilation outlet is not provided with a damper for directly opening and closing the side ventilation outlet, and the side ventilation outlet is always open. . Therefore, the amount of air discharged from the side ventilation outlet has been adjusted by operating an opening/closing means provided in an opening in the vehicle interior that communicates with the side ventilation outlet.

Therefore, even if you select another outlet mode, for example, the defroster outlet mode, if the opening in the passenger compartment that communicates with the side ventilation outlet is open,
There was a problem in that the amount of air discharged from the selected defroster outlet was reduced and a sufficient defroster effect could not be obtained.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an IjMrl device that can suppress a decrease in the amount of air discharged from a selected outlet.

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a plurality of air outlets for blowing air toward a room, and an air outlet upstream of at least one of the plurality of air outlets. , by moving along the opening surface of the at least one air outlet,
a visible film-like member having an opening capable of opening the at least one air outlet; a driving means for moving the film-like member along an opening surface of the at least one air outlet;
The technical means includes an opening/closing means for opening and opening air outlets other than the at least one air outlet in conjunction with the driving means.

[Operations and Effects of the Invention] The present invention having the above configuration operates the driving means to move the membrane member along the opening surface of one of the plurality of outlets, By aligning the opening of the member with the selected air outlet, air can be blown into the room from the selected air outlet.

At this time, by closing the air outlets other than at least one of the plurality of air outlets by the opening/closing means interlocked with the driving means, the selected air outlet is opened by the membrane member, and at the same time at least one air outlet is opened by the membrane member. Air outlets other than the two air outlets can be opened or closed.

For this reason, when the selected air outlet is opened by the membrane member, the air outlet other than at least one of the plurality of air outlets may be closed by the opening/closing means that is linked with the driving means. This makes it possible to suppress a decrease in the amount of air blown into the room from the selected outlet.

[Example] Next, an example in which the opening/closing device of the present invention is applied to an air outlet switching mechanism of a vehicle air conditioner will be described based on the drawings.

As shown in the schematic diagram of FIG. 2, the air conditioner 1 of this embodiment is of a type that mixes cold air and warm air and discharges the mixed air to various parts within the vehicle interior.

Upstream of the ventilation duct 2, an inside air inlet 3 for circulating the air inside the vehicle and an outside air inlet 4 for introducing outside air into the vehicle interior are formed as air inlets. Either one of the two inlet ports 3.4 is closed by the internal/external air switching damper 5.

This ventilation duct 2 includes a blower 6 that generates airflow toward the vehicle interior, a cooler 7 consisting of a refrigerant evaporator of a refrigeration cycle, a heater 8 that uses engine cooling water as a heat source, and a heater 8 that uses engine cooling water as a heat source. A bypass passage 9 bypasses the heater 8, an air mix damper 10 adjusts the ratio of air passing through the heater 8 to air passing through the bypass passage 9, and air mixed by the air mix damper 10 is distributed to various parts of the vehicle interior. An air outlet switching device 1111 for supplying air is provided.

This air outlet switching mechanism 11 constitutes the downstream side of the ventilation duct 2, and as shown in FIG.
A defroster outlet 13, a center ventilation outlet 14, and a heater outlet 15 are provided on the 2nd side, front, and bottom, and side ventilation outlets 16 are provided on both sides of the center ventilation outlet 14. ing.

The defroster outlet 13, the center ventilation outlet 14, the heater outlet 15, and the side ventilation outlet 16 use the air blower 1116 to send air introduced from the inside air inlet 3 or the outside air inlet 4 to the ventilation duct 2.
It is a plurality of air outlets of the present invention for blowing air from the inside toward the vehicle interior.

The defroster outlet 13, the center ventilator outlet 14, and the heater outlet 15 each have a rectangular opening, and the side ventilation outlet 16 has an elliptical opening.

Further, the defroster outlet 13, the center ventilation outlet 14, and the heater outlet 15 are provided with the same opening length in the width direction (left-right direction in FIG. 2) and circumferential direction.

Note that the opening length of each outlet 13.14.15 does not necessarily have to be the same; for example, the opening length in the circumferential direction may be changed depending on the amount of air discharged from each outlet 13.14.15. good.

The defroster outlet 13 is equipped with an air passage 18 for blowing the air discharged from the defroster outlet 13 onto the windshield 17, as shown in FIG. An air passage 20 is installed for blowing the air discharged from the ration outlet 14 from the center of the instrument panel 19 to the vicinity of the chest of the vehicle occupant.

Further, the heater outlet 15 is equipped with an air passage 21 for blowing the air discharged from the heater outlet 15 to the feet of the vehicle occupant, and the side ventilation outlet 16 is equipped with an air passage 21 for blowing the air discharged from the heater outlet 15 to the feet of the vehicle occupant. A blowing passage 22 is installed for blowing out air from both sides of the instrument panel 19 to the vicinity of the chest of the vehicle occupant.

Inside the case 12, a film damper 23, which is a visible film-like member of the present invention, is disposed as shown in FIG. This film damper 23 is constructed by forming a belt-shaped film made of polyethylene resin into a ring, and attaching it to the case 12.
It is slidably attached to the outer periphery of a frame 24 configured inside.

The film damper 23 has a first opening 25, a second opening 26, and a third opening 27, each having a size corresponding to the opening area of the defroster outlet 13, center ventilation outlet 14, and heater outlet 15. It is established by punching. In addition, in the circumferential direction of each opening 25.26.27, a plurality of bands are formed when punching and forming each opening 25.26.27. When passing through a portion of each corner of the frame 24 shown in the figure,
In addition to preventing the film damper 23 from deforming,
When moving the film damper 23, the film damper 2
This prevents each opening 25, 26, 27 from being deformed due to the tension generated in the opening 25, 26, 27.

The frame 24 includes two pentagonal frames 28 that correspond to the inner shape of the case 12 having each of the air outlet ports 13, 14, 15, and 16, and that correspond to the shape of the side cross section of the case 12, and an opposing side of the frame 28. A drive shaft of a drive arm 30, which will be described later, is formed between a pillar 29 that supports a part of each corner and supports the film damper 23 from the inner periphery, and two upper and lower legs 28a that constitute each frame 28. 31 and a pillar 32 for pivotally supporting it. Note that the column portion 28b of the frame body 28 corresponds to the case surface where the air outlet is not formed (the right side in FIG. 1).
forms a circular arc along the rotation locus of the drive arm 30.

As shown in FIG.
A drive arm 30 having a square U-shape that moves along the opening surface is welded to the drive arm 30 and is rotatably provided along the arc-shaped column portion 28b.

Note that the film damper 23 is annular and attached to the frame 24.
When installing the film damper 23 on the outer periphery of the frame 24, both ends of the film damper 23 are connected to the tip of the drive arm 30 by caulking, etc., and as the drive arm 30 rotates about the drive shaft 31, Slide.

Further, at the rear end of the drive arm 30, an opening/closing plate (opening/closing means of the present invention) having an oval area capable of closing the side ventilation outlet 16 is provided integrally with the driving arm 3G.
33 is formed to open and close the side ventilation outlet 16 in response to rotation of the drive arm 30.

In addition, the film damper 23 is connected to each air outlet 13, 14, 15.
When moving along the opening plane of each opening 25, 26.
27, the respective air outlets 13, 14, 15, and the opening/closing plate 33 will be explained using FIGS. 61N to 8.

First, when the drive arm 30 is in the position shown by the solid line in FIG. 6, the first opening 25 opens the defroster outlet 13, and the opening/closing plate 33 completely blocks the side bending outlet 1G. in position.

When the drive arm 30 is in the position shown by the solid line in FIG.
It is located in a position that blocks approximately 173 of the area.

When the drive arm 30 is in the position shown by the solid line in FIG.
4 is opened, and the opening/closing plate 33 is also in a position to completely open the side bending outlet 16.

The drive shaft 31 has one end protruding from the side wall surface of the case 12, is bent into an L-shape, and is remotely controlled by a wire (not shown).

One end of the wire is connected to a link member 34 attached to the end of the drive shaft 31 (on the right side in Figure 2), and the other end is connected to an air conditioning control operated by the driver, as shown in Figure 9. The blowout mode selection lever 36 is connected to the blowout mode selection lever 36 provided on the panel 35.
The drive shaft 31 is remotely controlled according to the set position.

Note that the frame 24, drive shaft 31, and drive arm 30 described above constitute the drive means of the present invention.

The air conditioning control panel 35 of this embodiment is provided with a defroster blowout mode, a penderation blowout mode, and a heater blowout mode. It is set in. In addition to the blowout mode selection lever 36, the air conditioning control panel 35 of this embodiment also includes a fan switch 37 for starting the blower 6 and operating the air volume, an inside/outside air switching lever 38 for operating the inside/outside air switching damper 5, A cooler switch 39 and an air mix damper drive lever 40 are provided.

In this embodiment, it is assumed that engine cooling water is always supplied to the heater 8.

Next, the operation of the air conditioner 1 of the above embodiment will be explained.

When the fan switch 37 is turned on, air is supplied into the ventilation duct 2 through the inside air introduction port 3 or outside air introduction port 4, which is opened according to the operation of the inside/outside air switching lever 38, by the operation of the blower 6.

When the air supplied into the ventilation duct 2 passes through the cooler 7, it is cooled when the cooler switch 39 is turned on, and is cooled down to the heater 8 or bypass at a rate depending on the set position of the air mix damper 10. passing through passage 9 and heating device 8
They meet downstream and are mixed. The mixed air is supplied to the inside of a film damper 23 disposed within the case 12 that constitutes the outlet switching mechanism 11 .

a) When the blowout mode selection lever 36 of the air conditioning control panel 35 is set to the pendeletion blowout mode.

The drive shaft 31 is driven by a wire to rotate the drive arm 30, and the film damper 23 moves on the outer periphery of the frame 24 along the opening surface of each air outlet 13, 14, 15. As shown in FIG. 8, the second opening 26 of the film damper 23 aligns with the center ventilation outlet 14 to completely open the center ventilation outlet 14, and the defroster outlet 13 And the heater outlet 15 is blocked by the film damper 23.

Further, at this time, the opening/closing plate 33 is in a position to completely open the side bending outlet 16, and the air supplied from the ventilation duct 2 is transferred to the center ventilation outlet 14 and the side bending outlet. 16 to the instrument panel 1 via the air duct 20.22.
It is discharged from the center of the instrument panel 19 near the chest of the vehicle occupant, and from both sides of the instrument panel 19 near the chest of the vehicle occupant.

b) When the blowout mode selection lever 3G of the air conditioning control panel 35 is set to the heater blowout mode.

The drive shaft 31 is driven by a wire to rotate the drive arm 30, and the film damper 23 moves on the outer periphery of the frame 24 along the opening surface of each air outlet 13, 14, 15. As shown in FIG. 7, the third opening 27 of the film damper 23 coincides with the heater outlet 15 to completely open the heater outlet 15, and the defroster outlet 13 and the center ventilation The air outlet 14 is blocked by the film damper 23.

Further, at this time, the opening/closing plate 33 is in a position to block approximately 1/3 of the side bending outlet 16, and the opening/closing plate 33 is in a position to block approximately 1/3 of the side bending outlet 16, and the
The air supplied from the heater outlet 15 passes through the air passage 2
1, a relatively large amount of air is discharged near the feet of vehicle occupants, and a relatively large amount of air is discharged from the side bending outlet 16 to the air passage 22 from both sides of the instrument panel 19 to the vicinity of the chest of vehicle occupants. Discharged with small air volume.

C) When the blowout mode selection lever 36 of the air conditioning control panel 35 is set to the defroster blowout mode.

The drive shaft 31 is driven by a wire to rotate the drive arm 30, and the film damper 23 moves on the outer periphery of the frame 24 along the opening surface of each air outlet 13, 14, 15. As shown in FIG. 6, the 11M opening 25 of the film damper 23
3, the defroster outlet 13 is fully opened, and the heater outlet 15 and center ventilation outlet 14 are closed by the film damper 23.

Also, at this time, the opening/closing plate 33 is in a position to completely block the side bending outlet 16, and the air supplied from the ventilation duct 2 is sent only from the defroster outlet 13 through the air passage 18 to the vehicle. It is discharged in a large landscape toward the windshield 17.

As a result, when set to defroster blowout mode,
Since the side bending outlet 16 is completely closed by the opening/closing plate 33 formed integrally with the drive arm 30, all the air introduced by the operation of the blower 6 can be discharged from the defroster outlet 13, and the defroster The effect can be used effectively.

Note that the amount of air discharged from the side bending outlet 16 in each blowing mode can be changed depending on the shape of the opening/closing plate 33, the shape of the side bending outlet 16, and the positional relationship between the two.

FIG. 10 shows a second embodiment of the present invention.

In this embodiment, as shown in FIG.
The arrangement is reverse to that of the first embodiment.

(Modification) In the above-described embodiment, the drive arm 30 is installed outside the frame 24, but as shown in FIG. 11, the drive arm 30 may be installed inside the frame 24.

By installing it in this way, the installation of the drive arm 30 including the opening/closing plate 33 on the outside of the frame 24 does not require any space and no drive space, so the air outlet switching mechanism 11 can be made smaller than in the above-mentioned embodiment. can be converted into

In addition, the shape of the support portion of the column 32 for pivotally supporting the drive shaft 31 of the drive arm 30 is changed by providing a notch portion 41a in the hole 41 that pivotally supports the drive shaft 31, as shown in FIG. By forming the shaft 31 into a shape that allows the shaft 31 to be inserted, the drive shaft 31 and the drive arm 30 can be integrally molded and attached to the frame 24 .

Although the case where the opening/closing device of the present invention is applied to the outlet switching mechanism of a vehicle air conditioner is shown, it may be used in the outlet switching mechanism of a railway vehicle, a ship, etc. in addition to the vehicle air conditioner.

Although four air outlets are illustrated as the plurality of air outlets, a plurality of air outlets other than four may be used.

Although an example has been shown in which the film damper is manually operated via a wire, it may be rotated by other operating means such as an electric motor, a negative pressure actuator, or a hydraulic actuator.

Moreover, although the film damper is constructed from a single member, a cloth or the like may be adhered to the outer peripheral surface of the film-like member for the purpose of reducing sliding resistance.

[Brief explanation of the drawing]

1 to 9 show a first embodiment of the present invention.
Figure 2 is a perspective view of an air outlet switching mechanism to which the opening/closing device of the present invention is applied, Figure 2 is a schematic diagram of a vehicle air conditioner, Figure 3 is a view of the air outlet switching mechanism installed in a vehicle, and Figure 4 is a film damper. Figure 5 is a perspective view of the frame and drive arm, Figure 6 is a perspective view of the frame and drive arm.
Figures 9 to 8 are explanatory diagrams of the operation with the film damper, and Figure 9 is an illustration of the operation with the film damper.
10 is a sectional view of an air outlet switching mechanism showing another embodiment of the present invention, and FIGS. 11 and 12 are views showing modified examples of the frame and drive arm. It is. In the diagram 13... Defroster outlet 14... Center ventilation outlet 15... Heater outlet 1
6... Side ventilation outlet 23... Film damper (membrane member) 24... Frame (driving means) 30... Drive arm (driving means) 31...
Drive shaft (driving means) 33...open plate (open field means)

Claims (1)

[Scope of Claims] A plurality of air outlets for blowing out air toward a room; and, upstream of at least one air outlet among the plurality of air outlets, moving along an opening surface of the at least one air outlet. A flexible film-like member having an opening capable of opening the at least one air outlet; and a driving means for moving the film-like member along an opening surface of the at least one air outlet. and an opening/closing means for opening and closing air outlets other than the at least one air outlet in conjunction with the driving means.