JP2000039208A - Panel installed air-conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To normally transmit the drive force of a drive device to a wind direction changing plate by a method wherein an annular recessed groove is formed in the upper part of an output gear and a regulation piece slidably contained in the recessed groove and regulating shaft oscillation of the drive shaft of a motor to drive the output gear is arranged at a motor cover. SOLUTION: An annular recessed groove 11a is formed in the upper part of an output gear 11 and meanwhile, and a regulation piece 9b slidably contained in the recessed groove 11a and regulating shaft oscillation of a drive shaft 10a of a motor 10 to drive the output gear 11 is arranged in a motor cover 9. The drive shaft 10a of the output gear 11 is regulatable to prevent the occurrence of shaft oscillation. The output gear 11 is prevented from waving, and the drive force of the motor 10 is prevented from instability of operation to rotate a wind direction change plate resulting from non-normal transmission of the drive force of the motor 10. By forming the regulation piece 9b in a reverse protrusion in an annular shape corresponding to that of the recessed groove 11a, the drive shaft 10a of the output gear 11 is effectively regulated in a manner to prevent the occurrence of shaft oscillation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-ceiling type air conditioner, and more particularly, to a drive system for an output gear, which constitutes a drive device for a wind direction change plate, so that the drive shaft does not run out. The present invention relates to a structure capable of normally transmitting the driving force of the driving device to a wind direction changing plate.

[0002]

2. Description of the Related Art A conventional ceiling-mounted type air conditioner has a decorative panel mounted on a lower portion of a main body casing 1 embedded in a ceiling surface as shown in FIGS. 1, 2 and 7, for example. 2 is provided with air outlets 3 on four sides thereof, and a wind direction changing plate 5 is rotatably supported on the air outlet 3 by a support shaft portion 4.
The connecting members 6 connected to the adjacent rotating shafts provided on both sides of the decorative panel 2 are connected by connecting means including a connecting member 7 at the corners of the decorative panel 2, and at any one of the corners, A driving device 8 for driving the wind direction changing plate 5; and a motor constituting the driving device 8
A cam gear 12 having a gear portion meshing with the output gear 11 and having a helical cam groove formed on one surface by an output gear 11 provided on a drive shaft 10a of the camshaft 10; The rotation direction of the groove is converted into a linear motion and transmitted to the connection means and transmitted to the connection means via a hook type universal joint 13 comprising a main shaft 13a and a lever 13b provided on the connection means side. The configuration was such that the wind direction changing plate 5 was rotated.

However, the drive shaft 10a of the output gear 11 constituting the drive device 8 is displaced, and
7 has a problem that the driving force of the motor 10 is not transmitted normally and the turning operation of the wind direction change plate 5 becomes unstable. Was.

[0004]

SUMMARY OF THE INVENTION In view of the above problems, the present invention regulates the drive shaft of an output gear constituting a drive device for a wind direction changing plate so that it does not run out. It is an object of the present invention to provide a ceiling-mounted air conditioner that can normally transmit the driving force of a driving device.

[0005]

According to the present invention, in order to solve the above-mentioned problems, air outlets are provided on four sides of a decorative panel, and a wind direction changing plate is rotatably supported by a support shaft at the air outlets. A connecting body connected to adjacent rotating shafts provided on both sides of the wind direction changing plate is connected at a corner of the decorative panel by a connecting means including a connecting member or the like, and any one of the corners is provided. In a ceiling embedded type air conditioner provided with a driving device for driving the wind direction changing plate at several places, the driving device includes a motor having an output gear, and a gear portion meshing with the output gear on a peripheral surface. A cam gear having a spiral cam groove formed on one surface thereof, and a cam gear provided on the side of the connecting means for converting the movement in the rotation direction by the cam groove into a linear motion and transmitting the linear movement to the connecting means. Hook type universal joint,
A motor cover attached to a predetermined corner of the decorative panel, wherein the motor and the cam gear are assembled on an inner surface of the motor cover facing the decorative panel, and on an upper part of the output gear, While the annular groove is provided, the motor cover is provided with a regulating piece that is slidably housed in the groove and regulates the axial deviation of the drive shaft of the motor that drives the output gear. ing.

[0006] Further, the regulating piece is formed in an inverted convex shape by an annular shape corresponding to the concave groove.

Further, a gap is formed between the bottom surface of the concave groove and the lower end of the regulating piece.

Further, both sides of the restricting piece are formed in a curved shape.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below as examples based on the attached drawings. 1 to 5
6 (A) and FIG. 6 (B), reference numeral 1 denotes a main body casing embedded in a ceiling surface as a ceiling-embedded air conditioner, and reference numeral 2 denotes a main body casing mounted at a lower portion. The decorative grille 3, air outlets provided on four sides of the decorative grille 2, 5 a wind direction change plate rotatably supported by the support shaft portion 4 on the air outlet 3, 6 a wind direction change plate 5 on both sides Is a connecting member for connecting the adjacent connecting members 6, and 8 is a driving device for driving the wind direction changing plate 5.

The driving device 8 has a motor 10 having an output gear 11, a gear portion having a support shaft portion 12a at the center thereof and meshing with the output gear 11 on a peripheral surface, and has one surface. A cam gear 12 accommodated in a cam gear accommodating portion 9a having a helical cam groove 12b formed therein, and a connecting means comprising the connecting member 7 and the like by converting the rotational movement of the cam groove 12b into a linear motion. A hook-type universal joint 13 comprising a main shaft 13a and a lever 13b provided on the side of the connecting means for transmitting the motor 10 and a motor cover 9 attached to a predetermined corner of the decorative panel 3. A gear 12 is mounted on an inner surface of the motor cover 9 facing the decorative panel 2, and an annular groove 11 is formed above the output gear 11.
a, while the motor cover 9 is provided with the concave groove 11a.
The motor 10 drives the output gear 11 and is slidably accommodated in the drive shaft 10a.
11 can be regulated so that the drive shaft 10a does not run out, and the output gear 11 can be prevented from waving unlike the prior art described above with reference to FIG. The structure is such that the driving force of the motor 10 is not transmitted normally and the operation of rotating the wind direction changing plate 5 becomes unstable.

Further, since the regulating piece 9b is formed in an inverted convex shape by an annular shape corresponding to the concave groove 11a, the regulating piece 9b is housed over the entire length of the concave groove 11a. The configuration is such that the drive shaft 10a of the output gear 11 can be effectively regulated so as not to run out.

Further, the bottom surface of the concave groove 11a and the restricting piece 9b
6 (B), a vertical assembly error between the restricting piece 9b and the output gear 11 can be absorbed, and the concave groove 11a can be absorbed.
The control piece 9b accommodated in the drive shaft 10a is capable of effectively restricting the shaft deflection of the drive shaft 10a.

Further, by forming both sides 9c of the regulating piece 9b into a curved surface, the engagement state between the regulating piece 9b and the concave groove 11a is improved, and the regulating piece 9b is more smoothly and The groove 11a is slidably accommodated in the groove 11a.

With the above configuration, FIGS. 1 to 5 and FIG.
As shown in FIGS. 6A and 6B, the driving device 8 includes a motor 10 having an output gear 11 and a support shaft 12 at the center.
a cam gear 12 having a gear portion meshing with the output gear 11 on the peripheral surface and having a helical cam groove 12b formed on one surface; and a rotation direction by the cam groove 12b. And a hook-type universal joint 13 comprising a main shaft 13a and a lever 13b provided on the connecting means side for converting the movement into a linear motion and transmitting the linear movement to a connecting means comprising the connecting member 7 and the like. A motor cover 9 attached to a corner portion, wherein the motor 10 and the cam gear 12 are assembled on an inner surface of the motor cover 9 facing the decorative panel 2, and above the output gear 11, Annular groove 11a
On the other hand, since the motor cover 9 is provided with the regulating piece 9b which is slidably received in the concave groove 11a and regulates the axial deviation of the drive shaft 10a of the motor 10 for driving the output gear 11, Therefore, it is possible to regulate the drive shaft 10a of the output gear 11 so that the shaft does not run out, so that the output gear 11 does not undulate as in the prior art described above with reference to FIG. A ceiling-embedded air conditioner that can prevent such an event that the driving force of the motor 10 is not transmitted normally and the turning operation of the wind direction changing plate 5 does not become unstable. .

[0015]

As described above, according to the present invention, the drive shaft of the output gear constituting the driving device for the wind direction changing plate can be regulated so that the drive shaft does not run out, and the driving force of the driving device is applied to the wind direction changing plate. It becomes a ceiling-mounted air conditioner that can transmit normally.

[Brief description of the drawings]

FIG. 1 is a sectional view of a ceiling-mounted air conditioner according to the present invention and a conventional example.

FIG. 2 is a perspective view showing a wind direction changing plate provided at an air outlet of a ceiling-mounted type air conditioner according to the present invention and a conventional example, and a driving device for driving the plate.

FIG. 3 is an enlarged perspective view of the driving device shown in FIG. 2;

FIG. 4 is a schematic cross-sectional view of a driving device for driving a wind direction changing plate of a ceiling-mounted type air conditioner according to the present invention and a conventional example.

FIG. 5 is a schematic sectional view of a driving device for driving a wind direction changing plate of the ceiling-embedded air conditioner according to the present invention.

FIG. 6 is a schematic cross-sectional view of a driving device for driving a wind direction changing plate of the ceiling-embedded air conditioner according to the present invention, wherein FIG. It is explanatory drawing before assembling, (B) is explanatory drawing after assembling.

FIG. 7 is a schematic cross-sectional view of a driving device that drives a wind direction changing plate of a ceiling-embedded air conditioner according to a conventional example.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 body casing 2 decorative grille 3 outlet 4 support shaft portion 5 wind direction change plate 6 connecting body 7 connecting member 8 drive device 9 motor cover 9a cam gear receiving portion 9b regulating piece 9c both sides of regulating piece 10 motor 10a drive shaft 11 output gear 11a concave groove 12 cam gear 12a spindle 12b cam groove 13 hook type universal joint 13a main shaft 13b lever a clearance

Claims (4)

[Claims] 1. An air outlet is provided on each of four sides of a decorative panel, and a wind direction changing plate is rotatably supported on the air outlet by a support shaft portion.
A connecting body connected to adjacent rotating shafts provided on both sides of the wind direction changing plate is connected at a corner of the decorative panel by connecting means such as a connecting member, and at any one of the corners. In the ceiling-mounted air conditioner provided with a driving device for driving the wind direction changing plate, the driving device includes a motor having an output gear, and a gear portion meshing with the output gear on a peripheral surface. And a cam gear having a spiral cam groove formed on one surface thereof, and a cam gear provided on the side of the connecting means for converting the movement in the rotational direction by the cam groove into a linear motion and transmitting the linear movement to the connecting means. A hook type universal joint, comprising a motor cover attached to a predetermined corner of the decorative panel, wherein the motor and the cam gear are assembled on the inner surface side of the motor cover facing the decorative panel, An annular concave groove is provided on the upper part of the output gear, while the motor cover is slidably received in the concave groove in the motor cover, and regulates a shaft deviation of a drive shaft of the motor that drives the output gear. A ceiling-mounted air conditioner characterized by having a piece. 2. The ceiling-embedded air conditioner according to claim 1, wherein the regulating piece is formed in an inverted convex shape by an annular shape corresponding to the concave groove. 3. The embedded ceiling air conditioner according to claim 1, wherein a gap is formed between a bottom surface of the concave groove and a lower end of the restricting piece. 4. The ceiling-embedded air conditioner according to claim 1, wherein both sides of said regulating piece are formed in a curved shape.