JP2001263779A - Wind direction deflector for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive wind direction deflector for air conditioner having simple structure and excellent assembling performance in which resistance of wind is reduced as much as possible and durability of wind direction deflecting blades is enhanced against driving. SOLUTION: A wind direction deflecting blade for altering vertical air supply direction is divided into three and left and right separated wind direction deflecting blades 12, 14 are coupled through a first coupling shaft 24. The left and right wind direction deflecting blades 12, 14 are driven integrally by a first drive source 22 and the central wind direction deflecting blade 16 is driven by a second drive source 36 through a second coupling shaft 34. The coupling shafts 24, 34 are arranged on the same line.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an air conditioner,
More specifically, the present invention relates to a wind direction changing device provided in an indoor unit of an air conditioner.

[0002]

2. Description of the Related Art An air conditioner indoor unit is provided with a wind direction changing device for changing the direction of wind blown from an air outlet. It was adjusted by adjusting the angle of the wind direction changing blade. In the mounting structure of the wind direction blade, holes for passing the rotation shaft of the wind direction blade are provided on both sides of the outlet frame that covers the periphery of the wind direction blade, and the rotation shaft has a structure integral with the wind direction blade.

[0003] Also, Japanese Patent No. 2,844,984 discloses that
An air-conditioning horizontal having a vertical wind direction change adjusting plate divided into three in the left-right direction is disclosed, and the blowing angle of the left and right wind direction adjusting plates connected to each other and the blowing angle of the central wind direction adjusting plate are independent of each other. In addition, the comfort of the living space is improved by further controlling the direction adjustment plate that adjusts the blowing angle in the left and right direction.

[0004]

However, in a vertical wind direction blade in which the rotating shaft has an integral structure with the wind direction changing blade,
To attach the rotation axis of the wind direction blade to the rotation shaft hole provided in the outlet frame that covers the circumference of the wind direction change blade, insert the rotation shaft into the rotation shaft hole with the wind direction change blade slightly bent. As a result, deformation stress when the wind direction changing blade is deformed remains, the wind direction changing blade is distorted, the wind direction changing blade is not securely blocked, or the axis of the rotating shaft is shifted, and a driving source (usually a stepping motor is used) Has a problem of shortening the durability life.

In the air conditioner described in Japanese Patent No. 2,844,984, although the left and right wind direction adjusting plates divided by a connecting wind direction plate are connected, they are integrated, so that they are thermally deformed. When such troubles occur, there is a problem that the repair work becomes expensive, for example, it is necessary to replace the left and right wind direction adjusting plates and the entire connecting wind direction plate.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has a simple structure with reduced wind resistance as much as possible, improved appearance, and is inexpensive and operates the wind direction changing blade. An object of the present invention is to provide a wind direction changing device for an air conditioner that improves durability.

[0007]

In order to achieve the above object, the invention according to claim 1 of the present invention is provided with separated left and right wind direction changing blades and between the left and right wind direction changing blades. A center wind direction changing blade, a first drive source for integrally moving the left and right wind direction changing blades via a first connection shaft,
A first drive source for turbulently moving the central wind direction changing blade via a second connecting shaft, an outlet frame for supporting the wind direction changing blade, and a plurality of support members; A plurality of support members having holes cut out in one direction and an outlet frame supporting the first connection shaft and the second connection shaft, wherein the shafts are arranged in the same straight line; This is a wind direction changing device for a harmonic machine.

According to a second aspect of the present invention, the notches provided in the supporting member and the outlet frame are provided in the same direction.

Further, the invention according to claim 3 is characterized in that the cutout portion of the cutout hole provided in the outlet frame is closed by a part of a front frame that covers the upper surface of the wind direction changing device.

According to a fourth aspect of the present invention, a plurality of protrusions are formed on each end face of the notch of the support member and the blowout frame, and the protrusions are partially formed on the outer periphery of the connecting shaft. And point contact.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an air conditioner C according to the present invention, in which an underframe 2 is mounted on a wall surface of a living space.
A front frame 4 attached to the underframe 2 and a suction grill 6 on the upper surface of the front frame 4 are provided. At the lower part of the front frame 4, there is formed a blowout port 8 for sending out temperature-controlled air. The blowout port 8 closes the blowout port 8, and changes the blowout direction of the temperature-controlled airflow when the blowout port 8 is opened. A wind direction changing device A is provided.

As shown in FIGS. 2 and 3, the wind direction changing device A includes a wind direction changing blade 10 for changing a vertical blowing angle and a wind direction changing blade (not shown) for changing a horizontal blowing angle. And

The wind direction changing blades 10 are separated into three pieces, and are provided between left and right wind direction changing blades 12 and 14 which are connected so as to swing integrally. And a central wind direction changing blade 16 swinging independently of the left and right wind direction changing blades 12 and 14.

On both sides of the wind direction changing blade 12 on the left side, cylindrical connecting portions 18 and 20 projecting laterally from the support plate 17 at both ends and the indicating plate 17 are formed integrally with the wind direction changing blade 12. The left connecting portion 18 is connected to a driving shaft 22 a of a driving source (for example, a stepping motor) 22 fixed to the outlet frame 1, while the right connecting portion 20 is connected to one end of a connecting shaft 24. I have. The connecting shaft 24 penetrates through a plurality of support plates 26 formed integrally with the central wind direction changing blade 16, and has a crank-shaped other end formed integrally with the right wind direction changing blade 14 and projecting in the lateral direction. Is connected to the consolidation house 28.

As shown in FIG. 4, the connecting portion 28 has a cylindrical connecting portion 28a to which the connecting shaft 24 is connected.
And an L-shaped lever 2 for integrally connecting the continuous end 28a to one of the plurality of support plates 30 in the wind direction changing blade 14.
8b, a space is provided between the connecting end 28a and the support plate 30 to accommodate the connecting house of the central wind direction changing blade 16.

One end (right side) of the central wind direction changing blade 16 is integrally formed with a connecting portion 32 protruding from the back surface thereof, and is provided between the connecting portion 32 and the right supporting plate 26. A space is provided for accommodating the connecting house 28a of the connecting portion 28 of the wind direction changing blade 14 on the right side. The connecting portion 32 is connected to one end (left side) of the connecting shaft 34,
The connection shaft 34 penetrates the support plate 30 of the right wind direction changing blade 14, and the right end thereof is connected to a drive shaft 36 a of a drive shaft (for example, a stepping motor) 36 fixed to the outlet frame 1.

The two connecting shafts 24 and 34 are relatively thin and arranged in the same straight line, so that the ventilation resistance is small.

The two driving sources 22 and 36 rotate synchronously or independently under the control of a controller (not shown). However, since the control contents are not the subject of the present invention, The description is omitted.

Further, a space between the left end support plate 30 of the right wind direction changing root 14 and the connecting portion 28 protruding from the support plate 30 is provided on the central wind direction changing blade 16. The connecting portion 32 is set to be slightly larger than the lateral length of the connecting portion 32. Similarly, the connecting portion 32 protruding from the right end of the wind direction changing blade 16 and the right end support plate 26 of the central wind direction changing blade 16 is formed. Since the space between them is set slightly larger than the lateral length of the connecting portion 28 of the right wind direction changing blade 14, the connecting portions 28, 3
The two do not interfere with each other.

The connecting shaft 24 penetrates through the support plate 26 of the central wind direction changing blade 16, and between the penetrating portions of the supporting plate 26, as shown in FIG. A connecting shaft cover 38 having a shape in which a part of a cylinder is cut out is integrally formed, and most of the connecting shaft 24 is covered with the connecting shaft cover 38 so that the connecting shaft 24 cannot be seen from the outside. Has become.

Similarly, the connecting shaft 34 penetrates the support plate 30 of the right wind direction changing blade 14, and the connecting shaft 34 has the same shape as the connecting shaft cover 38 between the penetrating portions of the supporting plate 30. Is formed integrally, and most of the connecting shaft 34 appears on the connecting shaft cover 40.

In FIGS. 2 and 3, reference numerals 42 and 44 denote supporting members for swingably supporting the left and right wind direction changing blades 12 and 14, respectively. Reference numeral 46 denotes a center wind direction changing blade 16 which can swing freely. 2 shows a supporting member to be supported. The support member 42 is located substantially at a separation portion between the left wind direction changing blade 12 and the center wind direction changing blade 16,
Are the right wind direction changing blade 14 and the center wind direction changing blade 16
And is almost located at the separation part. Further, the support member 46
Is located substantially at the center of the central wind direction changing blade 16.

The supporting members 42, 44, 46 have holes 42a, 44a, 46a cut out in one direction, and are connected to the connecting portions 20 and 32 of the wind direction changing blade and the Zui House 34a of the connecting shaft 34. It has a structure that can be fitted from the same direction perpendicular to the axis.

Similarly, the outlet frame 1 also has holes 1a and 1b which are cut out in one direction, and is assembled to the outlet frame in a state where the wind direction changing blade and the connecting shaft are assembled. Further, shielding plates 47 and 48 are attached to the notch holes 1a and 1b in order to prevent a wind flow from the notch holes.

FIG. 6 shows that the shielding plates 47 and 48 are integrated with a part of the front frame 4 (at a position 4a). In the present invention, it is provided on the front frame, but it goes without saying that other components (for example, a decorative plate or the like assembled to the front frame) may be integrated.

FIG. 7 shows that a plurality of projections 42b are provided on the end face of the notch hole 42a of the support member 42. When the connecting portion 20 of the wind direction changing blade 12 rotates inside the cutout hole 42a, the connecting portion comes into point contact with a plurality of convex portions without surface contact, and the friction noise between the resins is reduced. Also, because the contact resistance is small,
It is possible to use a noise source having a small torque. This is because, in the support portions 46 and 44, a plurality of convex portions are
The same applies to the case provided in 6a and 44a.

[0028]

Since the present invention is configured as described above, it has the following effects.

According to the first aspect of the present invention, the wind direction changing blades are separated into three, and the left and right wind direction changing blades are integrally driven by the first drive source via the first connecting shaft. On the other hand, the central wind direction changing blade is driven by the second drive source via the second connection shaft, and the first and second connection shafts are arranged in the same straight line, so that the wind resistance is reduced as much as possible. be able to.

Further, the horizontal structure of the wind direction changing device is simple and can be manufactured at low cost, and the repair of the wind direction changing blade can be performed as a single item, so that it is inexpensive.

Further, since it is not necessary to deform the wind direction changing blade and insert it into the rotary shaft hole provided in the outlet, it is possible to prevent the wind direction changing blade from opening due to distortion when the wind direction changing blade is closed. In addition, it is possible to prevent a problem such as a reduction in the durable life of the drive source due to a deviation of the axis of the rotating shaft, and it is possible to improve the durable life of the wind direction changing device.

According to the second aspect of the present invention, the notch directions of the shaft holes 42a, 44a, 46a of the support member for swingably supporting the connecting portion and the connecting shaft of the wind direction changing blade separated into three. And cutout holes 1a and 1b of the outlet frame 1
Since the notch direction of the connection direction is provided in the same direction, it is possible to assemble the wind direction changing blade and the connection shaft to the outlet in an assembled state, so that when connecting each connection portion and the connection shaft, the angle in the axial direction The adjustment makes it possible to adjust the angle between the left and right wind direction changing blades and the center wind direction changing blade, thereby reliably closing the wind direction changing blades and easily adjusting the gap between the connecting portions.

Further, according to the third aspect of the present invention,
By closing the gaps formed in the cutout holes 1a and 1b of the outlet frame 1 with a part of the front frame, another shielding component is not used, so that the wind direction changing device can be manufactured at low cost.

According to the fourth aspect of the present invention, a plurality of projections are provided on the end surface of the hole provided with the notch of the support member and the blowout frame, so that the contact with the connection shaft and the connection portion is provided. Are brought into point contact without surface contact, so that frictional noise during rotation of the wind direction changing blade can be reduced.

Further, since the contact resistance is small, it is possible to use a drive source having a small torque.

[Brief description of the drawings]

FIG. 1 is a perspective view of an air conditioner provided with a wind direction changing device according to the present invention.

FIG. 2 is a perspective view of a wind direction changing device according to the present invention.

FIG. 3 is an exploded perspective view of the wind direction changing device of FIG. 2;

FIG. 4 is an enlarged perspective view of the vicinity of an end of one connecting shaft provided in the wind direction changing device of FIG. 2;

FIG. 5 is an enlarged longitudinal sectional view of a central wind direction changing blade provided in the wind direction changing device of FIG. 2;

FIG. 6 is a schematic diagram of assembling the front frame and the outlet frame.

FIG. 7 is an enlarged perspective view of a support plate.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 outlet frame 2 base frame 4 front frame 4 a shielding shape portion 6 suction grille 8 outlet 10, 12, 14, 16 wind direction changing blades 17, 26.30 support plates 18, 20, 28, 32 connecting portions 22, 36 Drive source 22a, 36a Drive shaft 24, 34 Connection shaft 34a Connection shaft end 38, 40 Connection shaft cover 42, 44, 46 Support members 1a, 1b, 42a, 44a, 46a Notch-provided hole 42b Convex portion 47 , 48 Shield plate A Wind direction changing device C Air conditioner

Claims (4)

[Claims] The left and right wind direction changing blades are separated from each other, a central wind direction changing blade provided between the left and right wind direction changing blades, and the left and right wind direction changing blades via a first connecting shaft. A first drive shaft, a second drive source for driving the central wind direction changing blade via a second connecting shaft, an outlet frame for supporting the wind direction changing blade, and a plurality of support members. The first and second connection shafts are arranged in the same straight line, and the first connection shaft and the second connection shaft are provided by a plurality of support members having holes cut out in one direction and the outlet frame. A wind direction changing device for an air conditioner, which supports a shaft. 2. A wind direction changing device for an air conditioner according to claim 1, wherein the notches provided on the left and right sides of the support member and the outlet frame are provided in the same direction. 3. The wind direction of an air conditioner according to claim 1, wherein the cutout portion of the cutout hole provided in the outlet frame is closed by a part of a front frame that covers an upper surface of the wind direction changing device. Change device. 4. A plurality of projections are formed on each end face of the cutout hole of the support member and the outlet frame, and the projections are brought into point contact with a part of the outer periphery of the connection shaft. A wind direction changing device for an air conditioner according to claim 1.