JPH0757564B2 - Sliding damper device for vehicle air conditioner - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a slide type damper device for a vehicle air conditioner.

(Prior Art) An air conditioner for a vehicle is provided with a passage selection damper (for mode, air mix, and inside / outside air switching) in a duct, and the damper is generally operated to rotate around a fulcrum. It was Particularly, the air mix damper seals the passage opening by the force of the rotation moment around the fulcrum.

(Problems to be Solved by the Invention) However, when the damper of the operation type by rotation is used, the space occupied by the damper in the duct is large, and the layout is restricted. For this reason, it is attempted to provide a slide-type damper as a damper space can be made small so that the layout has a width and the air conditioning unit can be made compact.

In the case of constructing the slide type damper device, it is a problem that a smooth sliding operation can be performed and that the passage opening can be surely sealed.

Therefore, an object of the present invention is to provide a slide type damper device capable of smoothly sliding the damper in an air conditioner for a vehicle and sealing the passage opening portion entirely by the slide damper.

(Means for Solving the Problems) To achieve the above object, the present invention relates to a vehicle air conditioner provided with a damper that slides along an air passage opening, and a frame body having a plurality of air passage openings. And a damper drive means for moving the damper forward and backward and slidingly, the drive means slidingly moving the damper between the frame bodies around the air passage opening while maintaining a predetermined clearance with the frame body, and The damper is moved back and forth in the vicinity of a position matching the frame around the air passage opening, and the damper is brought into close contact with the frame surrounding the passage opening at a position matching the frame surrounding the passage opening.

(Operation) The rotary shaft 11 (31) is arranged in parallel with the air passage opening surface 3, and the damper 21 is driven by the drive of the rotary shaft 11 (31).
Since (41) slides with respect to the air passage opening surface 3 while maintaining a clearance, the damper 21 (41) slides smoothly without resistance to the air passage opening surface 3.

Then, at the position corresponding to the air passage openings 4 and 5, the drive of the rotary shaft 11 (31) causes the damper 21 (41) to move forward and backward, so that the damper 21 (41) can be brought into close contact with the periphery of the openings 4 and 5. The passage openings 4 and 5 are surely completely sealed.

(Examples) Examples will be described below with reference to the accompanying drawings.

FIG. 1 shows a first embodiment, 1 is an evaporator for forming low-temperature air, 2 is a heater core for forming high-temperature air, and the air is evaporated by a blower fan (not shown).
Side to the heater core 2 side, and is sent to the rear passenger compartment. An opening plate 3 composed of a frame body provided with a plurality of air passage opening portions forming an air passage opening surface is installed in the vicinity of the front surface of the heater core 2, and the front side thereof is separated by a partition plate 6 between the evaporator 1 and the left and right sides. As shown in FIG. 2, the opening plate 3 is formed with a pair of left and right openings 4 through which air is passed to the side of the heater core 2 and openings 5 through which air is passed into the heater core 2.

An electric motor is installed on the left and right duct sidewalls 7 and 7 with respect to the air flow direction so as to be located between the evaporator 1 and the heater core 2.
8 and 8 are installed respectively, and the left and right rotating shafts 11 and 11 are installed in parallel and concentrically with respect to the opening plate 3 with a space therebetween in the front.

The rotating shaft 11 is connected to the output shaft 9 of which the electric motor 8 has been decelerated and the end thereof is supported by the partition plate 6. The rotating shaft 11 is formed with a feed screw portion 12, and on both sides thereof an idle portion 13, The stopper portions 14, 14 are formed by 13 and are spaced from each other. A pair of left and right nut members 15, 15 are screwed to the feed screw portion 12, and a slide type damper 21 is supported by the nut members 15, 15 via an X-shaped link mechanism 17.

The flat plate-shaped slide damper 21 is located on the front side of the opening plate 3, and a pair of left and right engaging portions 22, 22 are provided on the rear surface thereof so as to project into the engaging groove 23 of the engaging portion 22. Is incorporated to prevent it from slipping out. As shown in FIG. 3, a link mechanism 17 is pivotally attached to the nut member 15 via a connecting pin 16, and a pair of left and right link mechanisms 17 and 17 are pivotally attached to an intermediate portion by a pivot pin 19.
This is a link mechanism that is connected by
17 and 17 are pivotally attached to connecting pins 24 and 24 on the rear surface of the slide damper 21, respectively. In addition, the link mechanisms 17, 17 have mutual pivot pins 1
Stoppers 18 and 18 that regulate the amount of contraction behavior around 9 are provided.

Next, the operation will be described.

First, the rotation of the rotary shaft 11 by the forward rotation / reverse rotation of the electric motor causes the nut members 15, 15 on the feed screw portion 12 to have a constant span x
X type link mechanism 17
The integrated slide damper 21 also moves via the. When one of the nut members 15 is located on the idle portion 13 and hits the stopper portion 14, the movement of the nut member 15 is prevented by the idle rotation and only the other nut member 15 moves, so that the span x becomes small.

As a result, the X-shaped link mechanisms 17, 17 contract and behave to push the slide damper 21 toward the rear opening plate 3 side.

Therefore, the nut member 15 is set on the idle portion 13 in accordance with the position where the slide damper 21 closes the openings 4 and 5, and at this time, the slide damper 21 opens the opening 4,
5 Set it so that it closely contacts the surrounding frame.

Since the sliding damper device of the vehicle air conditioner is constructed in this manner, as shown by the solid line in FIG. 1, for example, MAX HOT
In mode, slide damper 21 by X-type link mechanism 17
Is pressed against the frame around the opening 4 that allows air to pass to the side of the heater core 2 so that a tight seal can be made and warm air can be sent from the other opening 5 into the heater core 2 and into the passenger compartment. it can. In the MAX COOL mode, the slide damper 21 seals the frame around the opening 5 that allows air to flow into the heater core 2, so that the cool air from the evaporator 1 is sent from the other opening 4 to the side of the heater core 2 and into the vehicle interior. To be

Then, as shown in phantom in FIG. 1, the slide damper 21
The horizontal movement of the is performed with a clearance maintained with respect to the frame body forming the opening plate 3, so that a smooth sliding operation without resistance due to contact with the opening plate 3 can be obtained.

In addition to MAX HOT mode and MAX COOL mode, for example AIR M
In the IX mode, by holding the slide damper 21 in a state of being separated from the opening 5 as shown by the imaginary line in the drawing, cold air and warm air can be mixed and sent into the vehicle interior.

Further, the left and right slide dampers 21, 21 can be operated independently to control the left and right air conditioning separately.

Next, a second embodiment will be described.

In FIG. 4, 2 is a heater core, 3 is an opening plate,
8 is a drive motor, 31 is a rotating shaft, and 41 is a slide damper. The opening plate 3 is formed with upper and lower openings 4, 4 for passing air above and below the heater core 2 and openings 5, 5 in the middle thereof for passing air into the heater core 2 one by one. Four upper, lower, left and right slide dampers 41 ... Are arranged close to the front side of the opening plate 3, and a rack portion 42 is formed on the back surface of each slide damper 41. The rack portion 42 has a concave middle portion. It is a step 43.

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

The slide damper 41 is supported by a pair of left and right guide members 45, 45 shown in FIG. The guide member 45 is located above and below the engaging groove 46 in the middle portion and is forwardly stepped in the engaging grooves 47, 4
7 are continuous, and upper and lower sides of the engaging grooves 47, 47 are formed in a step shape toward the rear, and the engaging grooves 48, 4 corresponding to the engaging groove 46 in the middle portion.
8 in succession. The slide damper 41 is provided in the engagement groove.
Engagement pins 44,44 with small sliding resistance that are protruded from the upper and lower sides
Are engaged. Further, since the pins 44, 44 are rotatable, sliding resistance can be further reduced.

Even with such a slide damper device, the rotation of the rotary shaft 31 by the forward / reverse rotation drive of the electric motor 8 causes the drive gear 32 and the rack portion 42 to mesh with each other, thereby causing the slide damper 41 to move.
Moves vertically along the guide members 45, 45. That is, when the drive gear 32 meshes with the upper and lower ends of the rack portion 42, the slide damper 41 is brought into close contact with any one of the frames around the openings 4 and 5 of the opening plate 3. Also the rack section 42
In the state where the drive gear 32 meshes with the recessed stepped portion 43 in the intermediate portion, the slide damper 41 is positioned with a clearance maintained with respect to the frame body forming the opening plate 3.

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

In the embodiment, the air mix damper which also functions as a mode switch has been described, but the present invention is of course applicable to a damper for switching between inside and outside air.

(Effects of the Invention) As described above, according to the slide damper device of the present invention,
In a vehicle air conditioner, the damper is slid with respect to the frame body forming the air passage opening surface by a drive of a rotary shaft arranged in parallel with the air passage opening surface, so that there is no resistance to the air passage opening surface and smoothness is achieved. While the damper can be slid on, the damper moves forward and backward by driving the rotating shaft near the position corresponding to the frame around the air passage opening, so that the damper can be closely attached to the frame around the opening. It is possible to surely perform the entire sealing for the passage opening.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a main portion of an air passage provided with the slide type damper device of the first embodiment, FIG. 2 is an enlarged perspective view of the damper portion, FIG. 3 is the same plan view, and FIG. The disassembled perspective view of the main part of the air passage which shows the slide type damper device of 2nd Example,
FIG. 5 is an exploded perspective view showing an enlarged relationship between the damper and the guide member. In the drawings, 1 is an evaporator, 2 is a heater core, 3 is an air passage opening surface (opening plate), 4 and 5 are passage openings,
8 is an electric motor, 11 is a rotary 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 rotary shaft, and 32 is a A drive gear, 41 is a rack portion, 43 is a concave step portion, and 45 is a guide member.

Claims (5)

[Claims] 1. A vehicle air conditioner provided with a damper that slides along an air passage opening portion, comprising a frame body having a plurality of air passage opening portions, and damper driving means for moving the damper forward and backward and slidingly. The driving means slides the damper between the frames around the air passage opening while maintaining a predetermined clearance with the frame, and near the position where the damper coincides with the frame around the air passage opening. A slide-type damper device for an air conditioner for a vehicle, which is moved forward and backward to bring the damper into close contact with a frame body around the passage opening at a position corresponding to a frame body around the passage opening. 2. A slide type damper device for an air conditioner for a vehicle according to claim 1, wherein the damper adjusts a ratio of air passing through the heater and air bypassing the heater. . 3. The slide type vehicle air conditioner according to claim 1, wherein the damper switches the introduction of air inside the vehicle introduced into the air conditioner for the vehicle and air outside the vehicle. Damper device. 4. The rotating shaft arranged in parallel with the frame according to claim 1, wherein the rotating shaft is formed with a feed screw portion and stopper portions provided on both sides of the feed screw portion. ,
A pair of nut members are arranged in the feed screw portion, and an expandable X-type link mechanism is installed between the nut member and the damper, and a slide type damper device for a vehicle air conditioner. . 5. The vehicle air conditioner according to claim 1, wherein the driving means includes a step-shaped guide member, and the damper is slid along the guide member. Sliding damper device.