JP3440969B2 - Air conditioner - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner,
More specifically, it relates to a structure of a drive unit for driving and rotating two upper and lower wind direction plates.

[0002]

2. Description of the Related Art A conventional air conditioner is shown, for example, in FIG.
As shown in FIG. 2 (B) and FIG. 2 (C), the main body 1
A heat exchanger 3 and a blower fan 4 are provided in an air passage connecting the suction port 2 and the blowout port 5 inside, and the blowout port 5 has a plurality of left and right wind direction plates 6 and a support shaft 7a vertically and forward and backward. A drive unit 10 for rotatably supporting two vertical airflow direction vanes 7 and 8 separated from each other at 8a and driving both the vertical airflow direction vanes 7 and 8 on at least one side wall of the air outlet 5. The diffuser 9 constituting the lower portion of the blowout port 5 is pivotally supported.

With the above structure, the drive unit 10 is shown in FIG.
The drive motor 11 shown by the broken line in FIG.
Drive gear 11a provided on the drive shaft, an intermediate gear 12 that meshes with the drive gear 11a, and a mesh with the intermediate gear 12 to connect to the first support shaft 7a of the upper vertical wind direction plate 7 A first driven gear 13 having a flat portion on at least one side and provided with a male and female first connecting portion made of a fitting hole and a fitting piece for joining the flat portions, and the lower vertical wind direction plate 8 Second spindle 8a
A second driven gear 14 provided with a male and female second connecting portion consisting of a fitting hole and a fitting piece for joining the flat parts, respectively. By driving the drive motor 11 and driving the first driven gear 13 and the second driven gear 14 via the intermediate gear 12 meshed with the drive gear 11a, the both upper and lower wind direction plates 7, 8 is rotated to adjust the vertical wind direction, and the diffuser 9 is rotated downward to adjust the wind direction to perform air conditioning in the room.

In the above structure, the first support shaft 7a is inserted through the insertion hole 5b formed in the side wall 5a of the outlet 5 and connected to the first driven gear 13, and the second support shaft 8a is A through hole 5b provided in a side wall 5a of the outlet 5 is inserted to connect to the second driven gear 14, and the intermediate gear 12 is a support shaft 5c erected on the side wall 5a.
With the first driven gear 13 and the second driven gear 14 meshed rotatably with, the second driven gear 14, the first driven gear 13, and the second driven gear 14, It is held by a plurality of holding holes 5f provided in the holding plate 5e facing the side wall 5a, and is screwed into a screw hole of a fixing portion 5d erected on the side wall 5a by a screw 5g inserted through the other plurality of holding holes 5f. I wore it and attached it.

However, in the above construction, there is some play (play) at the connection between the first support shaft 7a and the first driven gear 13 and at the connection between the second support shaft 8a and the second driven gear 14. ), When both the first driven gear 13 and the second driven gear 14 are meshed with the intermediate gear 12, the upper and lower airflow direction vanes 7 and 8 close the outlet 5 accurately. There is a problem that it becomes difficult to assemble by adjusting to such a stop position, and the workability is reduced. Further, in the above-mentioned configuration, there is a problem that the number of parts is large, the time required for the assembling work is long, and the cost is disadvantageous.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it supports two upper and lower vertical wind direction vanes, and drives the same shaft to rotate both vertical wind vanes. Eliminate the play (play) that occurs when the gears of the drive unit are integrally formed and joined to each other, and easily assemble both upper and lower wind direction plates at the stop position that accurately closes the air outlet. It is an object of the present invention to provide an air conditioner capable of performing.

[0007]

Means for Solving the Problems In order to solve the above problems, a heat exchanger and a blower fan are provided in an air passage connecting an inlet and an outlet, and a plurality of left and right wind direction plates are provided at the outlet. An air conditioner that pivotally supports two vertical wind direction plates whose support shafts are vertically and longitudinally separated from each other and that has a drive unit for driving the both vertical wind direction plates on at least one side wall of the air outlet. The drive unit is a drive motor and an intermediate gear that meshes with the drive gear provided on the drive shaft of the drive motor, and an intermediate gear that meshes with the drive gear. a first driven gear which is integrally formed on the tip portion of the first shaft, consists of a second driven gear which is integrally formed on the tip portion of the second shaft of the lower portion of the vertical airflow direction plate, said first support shaft
And a convex portion provided on a part of the outer periphery of the distal end portion of the second support shaft.
On the other hand, the side wall of the outlet has a concave portion through which the convex portion is inserted.
A bearing hole corresponding to the first support shaft and the second support shaft is provided.
It has a digit structure.

Further, the first support shaft and / or the
At the base end of the second support shaft, the diameter is larger than the turning radius of the protrusion.
The stay section is composed of.

Further, the first support shaft and the second support shaft
The upper and lower winds of the upper portion between the convex portion and the stay portion.
A structure integrally formed with a direction plate and the lower direction wind direction plate
Has become.

Further, in the bearing hole, the first support shaft and
Of the dimension corresponding to the base end portion of the second support shaft and the convex portion
It is configured to have a protruding portion.

In addition, the protrusion is provided on the side wall of the outlet.
It has a structure integrally formed with.

Further, while the intermediate gear is rotatably supported on the side wall of the outlet, the first driven gear and the second driven gear are inserted into the bearing hole, and the convex portion is formed in the concave portion. The intermediate gear, the first driven gear, and the second driven gear start to mesh with each other at a position where is inserted.

[0013]

With the above construction, the support shafts of the two upper and lower wind direction plates and the gears of the drive unit for driving the support shafts to rotate both the upper and lower wind direction plates are integrally formed. Thus, the air conditioner can eliminate the backlash (play) that occurs when they are joined together and can easily assemble both upper and lower airflow direction vanes at the stop position where the air outlet is accurately closed.

[0014]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 (A), FIG. 1 (B), and FIG. 1 (C)
And 1, an indoor unit main body of the air conditioner, a suction port 2 provided in a front cover detachably attached to the main body 1 and an upper surface portion of the main body 1, and 3 are the same as the suction port 2 and described later. A heat exchanger 4 provided in an air passage connecting to the air outlet for exchanging heat with the air sucked from the air inlet 2 sends out the heat-exchanged air provided in the air passage to the air outlet described later. The blower fan 5 is an outlet for blowing out the air heat-exchanged by the heat exchanger 3 toward the room, and 5a is the outlet 5.
Is the side wall.

Reference numeral 5b is a plurality of bearing holes provided in at least one of the side walls 5a in which a drive unit described later is provided, and the bearing holes 5b are first support shafts and second support shafts of both vertical wind direction plates described later. Is rotatably supported so that the vertical wind direction at the outlet 5 can be adjusted by both vertical wind direction plates described later. In addition, the bearing hole
5b has a configuration in which a concave portion a corresponding to a convex portion provided on a first support shaft and / or a second support shaft of both upper and lower wind direction plates, which will be described later, is provided. Is positioned so that the outlet 5 can be accurately closed, and can be easily meshed with an intermediate gear described later to be assembled.

Reference numeral 5b 'is a protrusion formed integrally with the bearing hole 5b, and the protrusion 5b' is a base end portion of a first support shaft and / or a second support shaft of both upper and lower wind direction plates, which will be described later. And, it is formed with a corresponding dimension between the convex portion described later, by this, for example, when rotating both vertical wind direction plate described later with fingers.
Even if the upper and lower wind direction plates are bent,
The bearing hole 5b having the projecting portion 5b 'is configured to accurately support a first support shaft and / or a second support shaft of both vertical airflow direction vanes described later.

Reference numeral 5c is a spindle having a screw hole corresponding to a screw described later at a tip end thereof for rotatably supporting an intermediate gear described later. Reference numeral 5g is a flanged screw that is screwed into the screw hole of the support shaft 5c and rotatably holds an intermediate gear described later.

Since the projecting portion 5b 'and the support shaft 5c are integrally formed with the side wall 5a constituting the blowout port 5, the dimensional shape can be accurately finished and the cost is advantageous. It is composed.

Reference numeral 6 denotes a plurality of left and right airflow direction plates which are rotatably supported on the lower rear portion of the airflow outlet 5 to adjust the leftward and rightward airflow direction, and 7 and 8 are airflow outlets in front of the left and right airflow direction plate 6. 5
Two upper and lower wind direction plates for rotatably supported by the first support shaft 7a and the second support shaft 8a on both side walls to adjust the vertical wind direction, and 9 indicates the lower part of the outlet 5. It is a diffuser to be constructed.

7b and 8b are integrally formed with a part of the outer periphery of the tip of the first support shaft 7a and / or the second support shaft 8a, corresponding to the recesses a provided in the plurality of bearing holes 5b. In the convex portion formed in, in the state that the convex portion 7b and or or 8b is inserted into the concave portion a, by meshing the intermediate gear described later with the first driven gear and the second driven gear described later,
The upper and lower airflow direction vanes 7 and 8 are positioned so as to accurately close the air outlet 5 so that they can be easily assembled.

7c and 8c are integrally formed on the base end portion of the first support shaft 7a and / or the second support shaft 8a so as to have a diameter larger than the turning radius of the convex portion 7b. By forming the stay portions 7c and / or 8c in the formed stay portion, the plurality of bearing holes 5b and the recessed portion a can be almost hermetically sealed, whereby the heat exchanger 4 The cold air that has been heat-exchanged with is less likely to leak from the bearing hole 5b and the concave portion a, and the occurrence of dew condensation due to the cold air leakage can be prevented.

The convex portions 7b and 8b and the stay portion
7c, 8c and the first support shaft 7a and or the second support shaft
8a is integrally formed with the upper and lower wind direction plate 7 and / or the lower and lower wind direction plate 8 so that the dimensional shape can be accurately finished and the cost is advantageous.

The diffuser 9 constitutes the lower part of the outlet 5 and is rotatably provided.
Thereby, the diffuser 9 is rotated downward together with the vertical wind direction plates 7 and 8 so that the wind direction can be adjusted more effectively.

Reference numeral 10 denotes a drive unit which is provided on at least the one side wall 5a of the air outlet 5 in front of the left / right air flow direction plate 6 and drives and rotates the both up / down air flow direction plates 7 and 8. 11 is a drive motor that constitutes the drive unit 10,
The drive motor 11 employs a stepping motor so as to drive and rotate both the upper and lower wind direction plates 7 and 8. Reference numeral 11a denotes a drive gear provided on the drive shaft of the drive motor 11, which meshes with an intermediate gear described later by the drive gear 11a and links the intermediate gear with a first driven gear and a second driven gear described later. The upper and lower wind direction plates 7 and 8 are rotated.

Reference numeral 12 denotes an intermediate gear which constitutes the drive unit 10 and meshes with the drive gear 11a. The intermediate gear 12 causes the drive force of the drive motor 11 linked by the drive gear 11a to be described later. The upper and lower wind direction plates 7 and 8 are configured to rotate in association with the first driven gear and the second driven gear.

Reference numeral 13 is a first driven gear that meshes with the intermediate gear 12, and the first driven gear 13 is integrally formed at the tip of the first support shaft 7a. By
The intermediate gear 12 and the first driven gear 13 are meshed with each other so that the upper and lower airflow direction vanes 7 can be rotated without losing the joint portion and causing play (play). .

Reference numeral 14 is a second driven gear that meshes with the intermediate gear 12, and the second driven gear 14 is integrally formed at the tip of the second support shaft 8a. By
The intermediate gear 12 and the second driven gear 14 are meshed with each other so that the lower vertical wind direction plate 8 can be rotated without losing the joint portion and causing play (play). .

The drive gear 11a and the intermediate gear
12, the first driven gear 13 and the second driven gear 14, suitable for smoothly meshing each, for example, the first support shaft 7a or the first support shaft 7a made of synthetic resin such as polypropylene The structure is formed integrally with the two support shafts 8a, so that the upper and lower wind direction plates 7 and 8 can be smoothly rotated, and the load applied to the drive motor 11 composed of a stepping motor can be increased. The configuration can be reduced.

With the above structure, FIG. 1A and FIG.
As shown in (B) and FIG. 1 (C), the intermediate gear 12
Is rotatably supported on the side wall 5a of the air outlet 5, while the first driven gear 13 and the second driven gear 14 are inserted into the bearing hole 5b, and the convex portion 7b is inserted into the concave portion a. By engaging the intermediate gear 12 with the first driven gear 13 and the second driven gear 14 at the position where is inserted, the both upper and lower wind direction plates 7 and 8 accurately move the outlet 5 The air conditioner can be easily assembled in the closed stop position.

Further, with the above construction, the holding plate 5e described in the prior art becomes unnecessary, and the first support shaft 7a and the first driven gear 13 are integrally molded to form the second support shaft 8a. By integrally molding the second driven gear 14, the structure is such that the joint is eliminated and play (play) is not generated, which is advantageous in terms of cost and improves workability of assembly. It becomes an air conditioner.

[0031]

As described above, according to the present invention, the support shafts of the upper and lower two wind direction plates and the gears of the drive unit for driving the support shafts to rotate both the vertical wind direction plates are integrated. It is possible to easily assemble both the upper and lower wind direction plates at a stop position where the backlash (play) generated when joining is eliminated and the blowout port is closed accurately, because of the cost-effective structure formed in the above. It becomes the air conditioner.

[Brief description of drawings]

FIG. 1 is an explanatory view of an air conditioner according to the present invention, (A) is a sectional view, (B) is a side view of a main part, and (C) is an exploded perspective view of the main part.

FIG. 2 is an explanatory view of an air conditioner according to a conventional example, (A) is a cross-sectional view, (B) is a side view of a main part, and (C) is an exploded perspective view of the main part.

[Explanation of symbols]

1 Air conditioner body 2 Suction port 3 heat exchanger 4 Blower fan 5 outlet 5a side wall 5b bearing hole 5b 'protrusion 5c spindle 5g screw 6 Left and right wind direction plate 7 Upper and lower wind direction plate 7a Upper and lower wind direction plate support shaft 7b convex 7c Stay department 8 Lower vertical wind direction plate 8a Support shaft for the vertical wind direction plate at the bottom 8b convex 8c Stay department 9 diffuser 10 drive unit 11 Drive motor 11a Drive gear 12 Intermediate gear 13 First driven gear 14 Second driven gear a recess

Claims (6)

(57) [Claims] 1. A heat exchanger and a blower fan are provided in an air passage connecting an inlet and an outlet, and a plurality of left and right airflow direction plates are provided at the outlet and two support shafts are vertically and vertically separated from each other. An air conditioner that rotatably supports a vertical wind direction plate and a drive unit that drives both the vertical wind direction plates on at least one side wall of the air outlet, wherein the drive unit includes a drive motor. A drive gear provided on the drive shaft of the drive motor, an intermediate gear meshing with the drive gear, and a first gear integrally meshed with the intermediate gear at the tip of the first support shaft of the upper and lower wind direction vanes. One driven gear and a second driven gear integrally formed at the tip of the second support shaft of the lower vertical wind direction plate, and the tip of the first support shaft and the second support shaft.
While forming a convex part on the outer circumference of the end part, the side wall of the outlet
A concave portion through which the convex portion is inserted, the first support shaft and the front
The bearing hole corresponding to the second support shaft is provided.
Air conditioner. 2. The first support shaft and / or the second support shaft.
The diameter at the base end of the shaft is larger than the turning radius of the convex portion.
The air according to claim 1, wherein a stay portion is provided.
Harmony machine. 3. The first support shaft, the second support shaft, and
The convex portion and the stay portion are connected to the upper and lower wind direction plates and
It is formed integrally with the lower wind direction plate
The air conditioner according to claim 1 or claim 2. 4. The first support shaft and the first support shaft are provided in the bearing hole.
Two protrusions of a size corresponding to the base end of the support shaft and the protrusion.
The air conditioner according to claim 1, wherein the air conditioner is provided. 5. The protrusion is integrated with a side wall of the outlet.
5. The air conditioner according to claim 4, wherein
Machine. 6. The intermediate gear is rotated on the side wall of the outlet.
The first driven gear is supported in the bearing hole while being movably supported.
And the convex portion in the concave portion by inserting the second driven gear.
At the position where the intermediate gear and the first driven gear are inserted.
And that the second driven gear starts to mesh with each other.
The air conditioner according to claim 1, wherein: