JPH0473547A - Air blowing port structure of air conditioner device - Google Patents

Abstract

PURPOSE:To prevent an amount of blown air from being varied even if an opening angle of an opening or closing door under its semi-opened state has a certain error by a method wherein an opening side part of a seal surface is formed with a curved surface having a uniform distance in respect to an extreme end of the opening or closing door under its semi-opened state. CONSTITUTION:A projection part 19 having a seal surface 19S abutted against an end part 16a and a curved surface 19R continuously formed at an opening direction X is formed at a location corresponding to the end part 16a of an opening or closing door 16 of a case 18 near the first air blowing port 4. A partition wall 20 near the other edge of the first air blowing port 4 is also formed with another seal surface 21S abutting against the other end 16b of the opening or closing door 16 when the opening or closing door 16 is closed and a recessed part 21 having a curved surface 21R continuously formed in its opening direction X. The two curved surfaces 19R and 21R have a different radius distance from each other. However, a distance l between one end 16a and the other end 16b and another distance l between each of the curved surfaces 19R and 21R are kept constant irrespective of an opening or closing angle of the opening or closing door 16 under its semi-opened state.

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to an air outlet structure for an air conditioner.

<Prior art> As a conventional air conditioner outlet structure, for example, the third
There is something like the one shown in Fig.
(See Publication No. 2515). Air A taken into the air conditioner by the blower 1 passes through an evaporator 2 for cooling, a heater core 3 for heating, etc., and is then sent to the first defroster.
Air outlet 4, second air outlet 5 on the front of the instrument panel
The air is blown into the vehicle interior from the third air outlet 6 facing toward the passenger's feet. The first to third air outlets 4.5.6 are each provided with an opening/closing door 7.8.9 that rotates in conjunction with an operation lever (not shown). The blowing of air A is controlled by opening and closing.

FIG. 4 shows the structure of the first air outlet 4. As shown in FIG. This first outlet 4 is connected to the case IO of the air conditioner.
The opening/closing door 7 provided inside the first air outlet 4 has both ends, one end 7a and the other end 7b, rotated in the opening direction X around the mounting shaft 12. It is a butterfly-shaped door that can be moved freely. This opening/closing door 7 can be opened in two stages: a fully open state, which is substantially vertical, and a half-open state, which is diagonal. A protrusion 13 having a sealing surface 13S that comes into contact with one end 7a of the opening/closing door 7 when the opening/closing door 7 is closed is formed on the case IO near one edge of the first air outlet 4.

Furthermore, a protrusion 15 having another sealing surface 15S that comes into contact with the other end 7b when the opening/closing door 7 is closed is also formed on the partition wall 14 near the other edge of the first air outlet 4. When the opening/closing door 7 is in a closed state, one end 7a and the other end 7b of the opening/closing door 7 are connected to the sealing surface 13 of the protrusion 13.15, respectively.
8.15S, the air A is prevented from reaching the first outlet 4. When the opening/closing door 7 is rotated by a predetermined angle in the opening direction Since the gap d is created, a certain amount of air A corresponding to the gap d can be blown out from the first air outlet 4 into the vehicle interior.

<Problems to be Solved by the Invention> However, in the air outlet structure of such an air conditioner, due to an installation error when attaching the opening/closing door 7 to the first air outlet 4, the opening/closing door 7 may not open in the half-open state. There was also some angular error (variation) in the angle. Therefore, as shown in FIG. 4, if the opening angle of the opening/closing door 7 in the half-open state is larger than the normal angle (shown by the solid line),
Angle deviated by the amount of error in the opening direction X (illustrated with an imaginary line)
When this happens, a large gap is created between the one end 7a and the other end 7b of the opening/closing door 7 and each sealing surface 13S, 15S, so the amount of air A blown out from the first air outlet 4 also increases. (In FIG. 4, the other end 7b
There are no symbols such as gaps d and D on the side, but they are the same as on the one end 7a side).

The present invention has been made with attention to such conventional technology, and an object thereof is to provide an air outlet structure for an air conditioner in which the amount of air blown out does not change even if there is an opening angle error when the door is half open. It is something.

Means for Solving the Problem> In order to achieve the above object, the air outlet structure of the air conditioner according to the present invention has a structure in which the opening direction side portion of the sealing surface is connected to the tip of the opening/closing door in the half-open state. A curved surface with uniform distance is formed.

<Function> The distance between the curved surface formed on the side of the sealing surface in the opening direction of the opening/closing door and the tip of the opening/closing door is uniform everywhere regardless of the half-opening angle of the opening/closing door. Even if there is some variation in the half-open angle of the air outlet, a constant amount of air can always be blown out from the outlet.

<Embodiment> Hereinafter, a preferred embodiment of the present invention will be described based on FIGS. 1 and 2. Incidentally, the same reference numerals are given to the parts common to the conventional one, and redundant explanation will be omitted.

The opening/closing door 16 according to this embodiment has a pair of ribs 17 on the side that receives the air A, each extending from the other end (tip) 16b to the near side of the one end (tip) 16a. It is integrally formed as a countermeasure. One end 1 of the opening/closing door 16 in the case 18 near the first air outlet 4
A protrusion 19 having a sealing surface 19S that comes into contact with the one end 16a and a curved surface 19R continuously formed in the opening direction X side is formed at a portion corresponding to 6a.

Further, the partition wall 20 near the other edge of the first air outlet 4 also has another sealing surface 21S that comes into contact with the other end 16b of the opening/closing door 16 when the opening/closing door 16 is closed, and another sealing surface 21S on the opening direction X side. The recess 21 has a continuous curved surface 21R. And these two curved surfaces 19R121R are
Either the radial distances are different from each other, or both are circular curved surfaces centered on the mounting shaft 22 of the opening/closing door 16, so one end 16
The distance between a and the other end 16b and each curved surface 19R121R! is uniform regardless of the opening angle of the opening/closing door 16 in the half-open state. Furthermore, when attaching the opening/closing door 16 to the first air outlet 4, as mentioned above, a certain degree of opening angle error is unavoidable; is the expected value of each end 16a after considering such installation errors.
, 16b and the sealing surface 198.21S. That is, each end 16a, 16b and the sealing surfaces 19S, 2 when the opening/closing door 16 deviates to the maximum in the closing direction (opposite the opening direction X) in the half-open state.
This is set narrower than the minimum gap with 1S. Therefore, the amount of air A blown out is determined by this distance l.

Therefore, even if the opening angle of the opening/closing door 16 when half-open is slightly off the normal angular position due to the influence of an error, each end 16a, 16b and each curved surface 19R121R
Since the distance l from the first air outlet 4 does not change, the amount of air A blown out from the first air outlet 4 is always constant.

In the above description, the opening/closing door 16 is of a butterfly type, with the tip portions 16a and 16b at both ends of the mounting shaft 22.
is taken as an example, but the present invention is not limited to this, and the opening/closing door may be of a type in which only one end portion rotates with the mounting shaft as the base end. In addition, if the shape of the curved surface is set to be sufficiently longer than the position where the installation error in the opening direction of the opening/closing door is expected to be the maximum, if the installation error of the opening/closing door shifts to the maximum in the opening direction. But you always get a certain amount of wind and rain.

<Effects of the Invention> Since the air outlet structure of the air conditioner according to the present invention has the content described above, it can always supply a constant amount of air without being affected by the opening angle error of the opening/closing door in the half-open state. It can be blown out from the air outlet. On the other hand, since it is no longer necessary to attach the opening/closing door very strictly, the workability of installing the opening/closing door can be simplified at the same time.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view showing an air outlet structure according to an embodiment of the present invention, Fig. 2 is a cross-sectional view of an opening/closing door along the line indicated by the arrows ■-■ in Fig. 1, and Fig. 3 is a cross-sectional view showing a conventional example. A schematic diagram of the harmonizing device, and FIG. 4 is an enlarged sectional view showing the part indicated by the arrow ▪ in FIG. 3. 4 ゛1st air outlet 6a 6b 19S, 21S 19R, 21R d, D β Opening/closing door One end (tip) Other end (tip) Sealing surface Curved surface Mounting axis Gap distance in air opening direction 1st figure Snore 2nd

Claims (1)

[Scope of Claims] An opening/closing door is provided at the air outlet of the air conditioner, and the opening/closing door rotates in the opening direction by a predetermined angle around the mounting shaft to be in a half-open state, and the opening/closing door is provided near the edge of the air conditioning apparatus. An air outlet of an air conditioner that forms a sealing surface that comes into contact with the tip of the door when closed, and blows air toward the outlet from the gap between the tip of the door and the sealing surface when the door is partially open. An air outlet structure for an air conditioner, characterized in that a curved surface having a uniform distance from the tip of the opening/closing door in a half-open state is formed on the opening direction side portion of the sealing surface.