JPH01172014A - Slide type damper for vehicle air conditioner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a sliding damper device for a vehicle air conditioner.

(Prior art) Vehicle air conditioners are equipped with a damper (for mote, air mix, and internal/external air switching) for passage selection within the tact, and the damper generally rotates around a fulcrum. Ta. In particular, air mix dampers were designed to seal passage openings using the force of rotational moment around a fulcrum.

(Problems to be Solved by the Invention) However, when a rotary motion type damper is used, the damper occupies a large space within the tact, and is subject to layout constraints. For this reason, attempts have been made to provide a sliding type damper as a way to reduce the damper space and give more width to the layout, thereby making the air conditioning unit more compact.

When configuring a slide type damper device, it is important to be able to perform a smooth sliding operation and to be able to securely seal the entire passage opening.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a sliding damper device for a vehicle air conditioner, which allows the damper to slide smoothly and also allows the slide damper to completely seal the passage opening.

(Means for Solving the Problems) In order to achieve the above problems, the present invention provides a plurality of openings 4, 5.
In a vehicle air conditioner equipped with a damper 21 (41) that slides along the air passage opening surface 3 arranged in parallel, the rotary shaft 11 (31) is arranged parallel to the air passage opening surface 3.
By driving this rotating shaft 11 (31), the damper 21 (41) is slid with respect to the air passage opening surface 3 while maintaining clearance, and the air passage opening 4,
The present invention is characterized in that a damper drive device is provided at the position corresponding to 5 to move the damper 21 (41) forward and backward so that it can come into close contact with the periphery of the openings 4 and 5.

(Function) The rotating shaft 11 (31) is arranged parallel to the air passage opening surface 3, and by driving this rotating shaft 11 (31), the damper 21 (41) creates a clearance with respect to the air passage opening surface 3. By holding the damper 21 (41) and sliding it, the damper 21 (41) smoothly slides without any resistance from the air passage opening surface 3.

And at a position corresponding to the air passage openings 4 and 5,
The rotary shaft 11 (31) is driven to move the damper 21 (4 parts) forward and backward, and the damper 21 (41) can be brought into close contact with the openings 4 and 5, ensuring that the passage openings 4 and 5 are completely sealed. be done.

(Example) Examples will be described below based on the accompanying drawings.

FIG. 1 shows a first embodiment, in which 1 is an evaporator for forming low-temperature air, 2 is a heater core for forming high-temperature air, and air is transferred to the evaporator by the action of a blower fan (not shown).
It flows from the side to the heater core 2 side and is sent into the passenger compartment at the rear. An opening plate 3 forming an air passage opening surface is installed close to the front surface of the heater core 2, and the front side of the opening plate 3 is partitioned into right and left by a partition plate 6 between it and the evaporator l. A pair of openings 4 for passing air to the sides of the heater core 2 and a pair of openings 5 for passing air into the heater core 2 are formed on each side.

Electric motors 8, 8 are respectively installed on the left and right duct side walls 7, 7 with respect to the air flow direction so as to be located between the evaporator l and the heater core 2, and the left and right rotating shafts 11.
11 is parallel to the opening plate 3 with an interval in front,
They are also constructed concentrically.

The rotating shaft 11 is connected to the output shaft 9 of the electric motor 8 which has been decelerated, and its tip is supported by the partition plate 6. The rotating shaft 11 has a feed screw portion 12 formed thereon, and an idle portion 13 on both sides thereof.
．． 13 defines a stop portion 14.14 spaced apart from each other. A pair of left and right nut members 15° 15 are screwed onto the feed screw portion 12, and a sliding damper 21 is supported by the nut members 15° 15 via an X-shaped link mechanism 17.

A flat plate-shaped slide damper 21 is located on the front side of the open lobe plate 3, and a pair of left and right retaining parts 22.2 are provided on the back side.
2 is provided protrudingly, and a connecting pin 2 is provided in the engaging groove 23 of the engaging portion 22.
The 4-knockout is stopped and built in. A link 1 is connected to the nut member 15 via a connecting pin 16 as shown in FIG.
A pair of left and right links 17.17 are connected at their intermediate portions by a pivot pin 19 to form an X shape in plan view, and these links 17.17 are connected to a connecting pin 24 on the back of the slide damper 21. .24 respectively. Also link 17
．． 17 is provided with a stopper portion 18.18 for regulating the amount of contraction behavior around each pivot pin 19.

Next, the operation will be explained.

First, the rotation of the rotating shaft 11 by the forward and reverse rotation of the electric motor 8 causes the nut member 15.15 on the feed screw portion 12 to move in the left-right direction while maintaining a constant span X, and at the same time, the X-shaped link mechanism 17 is rotated. The integrated slide damper 21 also moves through the slide damper 21. When one nut member 15 is located on the idle portion 13 and hits the stopper portion 14, this nut member 15
The movement of the other nut member 15 is prevented due to idle rotation.
The span X becomes smaller because only one part moves.

This causes the X-shaped links 17.17 to contract and push the slide damper 21 toward the rear opening plate 3.

Therefore, the state in which the nut member 15 is located on the idle portion 13 is set to match the position where the slide damper 21 closes the openings 4 and 5, and at this time, the slide damper 21
It is set so that it is in close contact with the surroundings of the openings 4 and 5.

After configuring the slide damper device of the vehicle air conditioner in this way, for example, the MAX
1 (In the OT mode, an opening 4 through which air passes through the slide damper 21 to the side of the heater core 2 by the X-type link mechanism 17)
Since it can be pressed tightly against the surroundings, a reliable seal can be achieved, and warm air can be sent into the vehicle interior by passing air into the heater core 2 from the other opening 5. In the MAX C00L mode, the slide damper 21 seals the opening 5 through which air passes into the heater core 2, so the cool air from the evaporator 1 is sent into the vehicle interior through the other opening 4 through the side of the heater core 2.

Then, as shown by the imaginary line in Fig. 1, the slide damper 2
1 is moved in the left-right direction while maintaining a clearance with respect to the aperture plate 3, so that a smooth sliding movement without resistance due to contact with the aperture plate 3 can be obtained.

In addition, in AIRMH mode other than MAX HOT mode and MAX' GOOL mode, the slide damper 2 is placed away from the opening 5 as shown by the virtual line in the figure.
By holding 1, you can mix cold air and warm air and send it into the passenger compartment.

Furthermore, by independently operating the left and right slide dampers 21, 21, it is also possible to control the left and right air conditioning separately.

Next, a second embodiment will be explained.

In Fig. 4, 2 is a heater core, 3 is an aperture plate,
8 is a drive motor, 31 is a rotating shaft, and 41 is a slide damper. The opening plate 3 is formed with a pair of left and right openings 4.4 at the upper and lower ends through which air passes above and below the heater core 2, and openings 5, 5 located between the upper and lower ends, through which air passes into the heater core 2. Four slide dampers 41 . is a recessed step portion 43.

There are also four rotary shafts 31, and each rotary shaft 31 is provided with a drive gear 32 that meshes with a rack portion 42, and a driven gear 33 is also provided at the outer end. The upper driven gear 33 directly meshes with the output gear 38 of the electric motor 8,
The lower driven gear 33 meshes with the idle gear 39 to transmit rotation from the output gear 38, and the output gear 38 and the idle gear 39 have the same number of teeth and the same diameter.

The slide damper 41 is supported by a pair of left and right guide members 45, 45 shown in FIG. The guide member 45 has step-shaped engagement grooves 47, 47 that are continuous upward and downward from the engagement groove 46 in the intermediate portion, and further have engagement grooves 47, 47 that are continuous with each other.
At the top and bottom of 7, there is an engagement groove 4 in the intermediate part that is stepped backwards.
The engagement grooves 48, 48 corresponding to 6 are continuous. Upper and lower retaining pins 44, 44 protruding from the side surface of the slide damper 41 are engaged in this retaining groove.

Even with such a slide damper device, the rotation of the rotating shaft 31 due to the forward and reverse rotation of the electric motor 8 causes the slide damper 41 to move along the guide members 45 and 45 due to the engagement between the drive gear 32 and the rack portion 42. Move up and down. That is, when the drive gear 32 is engaged with the upper and lower ends of the rack portion 42, the slide damper 41 is in close contact around either the opening 4 or 5 of the opening plate 3. Furthermore, when the drive gear 32 is engaged with the recessed step 43 at the middle of the rack section 42, the slide damper 41 is positioned with a clearance maintained relative to the opening plate 3.

Therefore, the object of the present invention can also be achieved with this second embodiment.

Although the embodiment has been described as an air mix damper that also serves as a mote switch, it goes without saying that the present invention can also be applied to a damper for switching between inside and outside air.

(Effects of the Invention) As described above, according to the sliding damper device of the present invention,
In vehicle air conditioners, the damper slides smoothly with no resistance from the air passage opening because it is driven by a rotary shaft placed parallel to the air passage opening while maintaining clearance from the air passage opening. At the same time, the rotary shaft is driven to move the damper forward and backward at the position corresponding to the air passage opening, so the damper is tightly fitted around the opening, thus ensuring a complete seal against the passage opening. I have something to do.

[Brief Description of the Drawings] Fig. 1 is a schematic plan view of the main part of the air passage provided with the sliding damper device of the first embodiment, Fig. 2 is an enlarged perspective view of the damper portion, and Fig. 3 is the same plane. FIG. 4 is an exploded perspective view of the main part of the air passage showing the sliding damper device of the second embodiment,
FIG. 5 is an enlarged exploded perspective view showing the relationship between the damper and the guide member. In the drawings, l is an evaporator, 2 is a heater core, 3 is an air passage opening surface, 4 and 5 are passage openings, 8 is an electric motor, 11 is a rotating shaft, 12 is a feed screw part, 13 is an idle part,
14 is a stopper part, 15 is a nut member, 17 is an X-type link mechanism, 21 is a slide damper, 31 is a rotating shaft, 32 is a drive gear, 42 is a rack part, 43 is a four-step part, and 45 is a guide member. \o

Claims (3)

[Claims] (1) In a vehicle air conditioner equipped with a damper that slides along an air passage opening surface in which multiple openings are arranged in parallel, the rotation axis is provided with a rotating shaft arranged parallel to the air passage opening surface. The damper driving device is configured to slide the damper while maintaining clearance with respect to the air passage opening surface by driving the damper, and move the damper forward and backward at a position corresponding to the air passage opening so that it can come into close contact with the periphery of the opening. A sliding damper device for a vehicle air conditioner, characterized by the following. (2) In claim 1, the rotary shaft is formed with a feed screw portion and a stopper portion spaced apart from each other on both sides thereof, a pair of nut members are disposed on the feed screw portion, and the nut member is disposed on the feed screw portion. A sliding damper device for a vehicle air conditioner, wherein an expandable X-shaped link mechanism is installed between the damper and the damper. (3) In claim 1, the rotary shaft is provided with a drive gear, and the back surface of the damper is formed with a step-shaped rack portion that meshes with the drive gear, and the rack portion has a step-like shape. A sliding damper device for a vehicle air conditioner, in which a damper is supported by a corresponding guide member.