JP3799799B2 - Embedded ceiling air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ceiling-embedded air conditioner. More specifically, the present invention prevents a so-called short circuit in which air blown out from a blowout port provided on four sides of a decorative panel immediately flows into a suction port. The present invention relates to a structure of a wind direction changing plate with improved appearance and a structure of a driving device that drives the wind direction changing plate.
[0002]
[Prior art]
A conventional ceiling-embedded air conditioner includes, for example, a suction port 8 provided in the center portion with a filter 9 on the inside, as shown in FIG. 9 and FIGS. 10 (A) and 10 (B). A blower comprising a fan motor 10 and a blower fan 11 and a heat exchanger 12 are provided in an air passage connecting the blower outlets 2 provided on the four sides of the decorative panel 1, and a support shaft portion 4 ′ is provided at the blower outlet 2. The wind direction changing plate 3 made of synthetic resin was pivotally supported so as to be rotatable.
[0003]
However, as shown in FIG. 10 (A), for example, the air direction changing plate 3 is formed in a planar shape with a substantially uniform plate thickness, so that the air blown out from the air outlet 2 is indicated by an arrow a. Thus, there is a problem in that it is easy to be sent out downward, causing a so-called short circuit in which the blown air immediately flows into the suction port 8 and lowering the heat exchange efficiency.
[0004]
Alternatively, as shown in FIG. 10B, for example, the air direction changing plate 3 is formed in a curved surface shape with a substantially uniform plate thickness, so that the air blown out from the air outlet 2 is indicated by an arrow b. As shown in the arrow c, when the blower outlet 2 is closed, the rear part in the short-side direction becomes uneven with the rear part of the blower outlet 2. It had the problem that it impaired the sex.
[0005]
Therefore, as a measure for preventing the rear portion of the air outlet 2 and the rear portion of the wind direction changing plate 3 from being uneven, the rear portion of the wind direction changing plate 3 is not shown. Is formed in different thicknesses, the shrinkage rate of the front and rear parts differs during cooling after molding. Thus, there is a problem that so-called blade warpage occurs in the longitudinal direction of the wind direction changing plate 3.
[0006]
[Problems to be solved by the invention]
In the present invention, in view of the above-described problems, the so-called short circuit in which the air blown out from the air outlets provided on the four sides of the decorative panel immediately flows into the suction port is prevented, and the appearance is improved and the so-called appearance is improved. It is an object of the present invention to provide a ceiling-embedded air conditioner having a structure of a wind direction changing plate that prevents blade warpage and a structure of a driving device that drives the wind direction changing plate.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a ceiling-embedded air conditioner in which air outlets are provided on four sides of a decorative panel, and wind direction change plates each having a support shaft portion are pivotally supported by these air outlets. In the machine
The air outlet is formed by a curved surface shape in which the air blowing direction is inclined outward, respectively, while the wind direction changing plate is made of a synthetic resin whose thickness is continuously changed, and its back surface is The front and rear portions in the short direction are formed in a curved surface shape by a thick wall shape having substantially the same thickness, and the surface is formed in a substantially flat shape except for a part thereof, and is continuous with the flat surface portion and at least short. The rear part in the hand direction has a curved surface shape corresponding to the inner surface of the rear part of the air outlet.
[0008]
Moreover, the back surface of the said wind direction change board has the structure which provided the rib of the protruding item | line on the at least rear part both sides of the longitudinal direction, and affixed the heat insulation member inside the same rib.
[0009]
Further, the gap between the peripheral edge of the outlet and at least the front and rear portions of the wind direction changing plate is narrowed, and when viewed from below when the operation is stopped, the gap is inclined outward. In addition, the curved shape of the air outlet is such that the inside of the air outlet is shielded from view.
[0010]
In addition, the support shaft portion has a substantially U-shaped bearing groove provided on both sides in the longitudinal direction of the air outlet, and a cylindrical shape fitted with stoppers corresponding to the bearing groove on both sides. The sleeve bush and a joint connected to the sleeve bush and simultaneously coupled to the support shaft of the wind direction changing plate are provided.
[0011]
Also, a driving device for rotating the wind direction changing plate is provided at any one of the four corners of the decorative panel, and the four wind direction changing plates are rotated in conjunction with one driving device. As described above, the joints adjacent to each other at the corner portion of the decorative panel are connected to each other by a connecting portion.
[0012]
In addition, the drive device includes a motor and a cam that converts the rotation of the drive shaft of the motor into a reciprocating motion and transmits it to the connecting portion.
[0013]
Further, gears are provided on the drive shaft of the motor and the outer peripheral portion of the cam, respectively, and are engaged with each other.
[0014]
Moreover, the said connection part becomes a structure which consists of a universal joint.
[0015]
Furthermore, the said connection part becomes a structure which consists of a flexible joint.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1, FIG. 2, FIGS. 3A to 3C, FIGS. 4A and 4B, FIGS. 5A to 5D, and FIG. In A) and FIG. 6 (B), FIG. 7 (A) to FIG. 7 (D), and FIG. 8 (A) and FIG. 8 (B), 1 constitutes a ceiling-embedded air conditioner, A decorative panel 3 provided with air outlets 2 on four sides is a wind direction change plate 3 that is pivotally supported on the air outlet 2 by a supporting shaft part, and is provided at the center of the decorative panel 1 and has a filter inside. In the air passage connecting the suction port 8 provided with 9 and the air outlet 2, a blower fan 11 provided with a fan motor 10 and a heat exchanger 12 are provided.
[0017]
The air outlet 2 is formed by a curved surface shape in which the air blowing direction is inclined outward, while the air direction changing plate 3 is in a state in which the air outlet 2 is closed and in a rotated state as shown in FIG. As shown in the figure, it is made of a synthetic resin whose thickness is continuously changed, and its back surface is formed into a curved surface shape with the front and rear portions 3b and 3c having a substantially equal thickness. The surface is formed in a substantially flat shape except for a part, and at least the rear portion 3c in the short direction is formed in a curved shape corresponding to the inner surface of the rear portion of the air outlet 2 continuously to the flat portion. It becomes the composition that
Thus, as in the prior art described above, the so-called short circuit in which the air blown from the air outlet 2 immediately flows into the air inlet 8 is not caused, and the heat exchange efficiency is not lowered. Further, when the air outlet 2 is closed, the rear portion 3c in the short direction of the wind direction changing plate 3 is flush with the rear portion of the air outlet 2, so that the appearance is not impaired. At the same time, a so-called blade warp is prevented from occurring.
[0018]
Further, as shown in FIGS. 3 (B) and 3 (C), the rear surface of the wind direction changing plate 3 is provided with protruding ribs 3d on at least both sides in the longitudinal direction, and a heat insulating member inside the ribs 3d. It has a configuration with 13 attached,
As a result, for example, during the cooling operation, there is a structure in which dew condensation is not generated on the wind direction change plate 3 by the blown cold air sent from the blower outlet 2.
[0019]
Further, as shown in FIG. 3 (A), the gap between the peripheral edge of the air outlet 2 and the front / rear part of at least the short direction of the wind direction changing plate 3 is formed so as to be narrowed when the operation is stopped. When viewed from below, the curved shape of the air outlet 2 that is inclined outwardly shields the inside of the air outlet 2 from being seen so that the appearance is not impaired. .
[0020]
Further, as shown in FIGS. 8 (A) and 8 (B), the support shaft portion has substantially U-shaped bearing grooves 1b provided on both sides in the longitudinal direction of the air outlet 2, respectively. A cylindrical sleeve bush 4a fitted with stoppers corresponding to the bearing groove 1b on both sides, and a joint 4 connected to the sleeve bush 4a and simultaneously connected to the support shaft 3a of the wind direction changing plate 3 It is composed of
As a result, the wind direction changing plate 3 can be easily and accurately supported by a simple structure.
[0021]
In addition, a driving device (described later) for driving and rotating the wind direction changing plate 3 is provided at any one of the four corner portions 1a of the decorative panel 1, and the four wind direction changing operations are performed by the same driving device. The joint 4 adjacent to each other at the corner 1a of the decorative panel 1 is connected to each other by connecting portions 4b and 5 so that the plate 3 rotates in conjunction with each other.
As a result, the four air direction change plates 3 are automatically driven and rotated to realize a comfortable air condition.
[0022]
The driving device that drives and rotates the wind direction changing plate 3 includes a motor 7 and a cam 7a that converts the rotation of the drive shaft of the motor 7 into a reciprocating motion and transmits it to the connecting portions 4b and 5. It is composed,
As a result, rotation of the drive shaft of the motor 7 can be smoothly converted into reciprocating motion by the cam 7a, and the wind direction changing plate 3 can be smoothly reciprocated through the connecting portions 4b and 5. It becomes the structure made.
[0023]
In addition, the drive shaft of the motor 7 and the cam 7a are provided with gears 7a 'on the outer periphery of the cam 7a so as to be engaged with each other, so that the drive shaft of the motor 7 and the cam 7a are assembled with a little clearance. In addition, the rotation of the drive shaft of the motor 7 can be accurately transmitted.
[0024]
Further, the connecting parts 4b and 5 are connected by a universal joint 6, and thereby, the four wind direction changing plates 3 are automatically and accurately driven and rotated to be comfortable. It has a structure that can achieve air conditioning.
[0025]
Further, the connecting portions 4b and 5 are connected by a flexible joint 6 ′, whereby four wind direction changing plates can be obtained by a simpler and more cost-effective configuration than the universal joint 6. 3 is automatically and accurately driven and rotated to realize comfortable air conditioning.
[0026]
With the above structure, FIG. 1, FIG. 2, FIG. 3 (A) to FIG. 3 (C), FIG. 4 (A) and FIG. 4 (B), and FIG. 5 (A) to FIG. ), FIGS. 6 (A) and 6 (B), FIGS. 7 (A) to 7 (D), and FIGS. 8 (A) and 8 (B). Is formed by a curved surface shape in which the blowing direction is inclined outward, respectively, while the wind direction changing plate 3 is made of a synthetic resin whose thickness is continuously changed, and its back surface is short. The front and rear portions 3b and 3c are formed by a curved surface shape that is thick with substantially the same thickness, and the surface is formed in a substantially flat shape except for a part, and is continuous to the flat portion, Since at least the rear part 3c in the short direction is formed by a curved surface shape corresponding to the inner surface of the rear part of the air outlet 2,
As in the prior art described above, the air blown from the air outlet 2 does not cause a so-called short circuit that immediately flows into the air inlet 8, and the heat exchange efficiency is not lowered. In addition, when the air outlet 2 is closed, the rear portion 3c in the short direction of the air direction changing plate 3 is flush with the rear portion of the air outlet 2, so that the appearance is not impaired, and so-called The ceiling-embedded air conditioner is designed to prevent blade warpage.
[0027]
【The invention's effect】
As described above, according to the present invention, the air blown out from the air outlets provided on the four sides of the decorative panel immediately prevents the so-called short circuit from flowing into the air inlet, improves the appearance and improves the so-called blade warpage. The ceiling-embedded air conditioner having the structure of the wind direction changing plate that is not generated and the structure of the driving device that drives the wind direction changing plate is provided.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a ceiling-embedded air conditioner according to the present invention.
FIG. 2 is a view showing a bottom surface of a ceiling-embedded air conditioner according to the present invention.
3A and 3B are cross-sectional views of a main part of the ceiling-embedded air conditioner according to the present invention, in which FIG. 3A shows the relationship between the air outlet and the wind direction changing plate, and FIGS. The state which stuck the heat insulation member to is shown.
FIG. 4 is a perspective view of a main part showing an example of a ceiling-embedded air conditioner according to the present invention, in which (A) shows a wind direction changing plate connected by a universal joint, and (B) is connected by a flexible joint. A wind direction change board is shown.
FIG. 5 is a main part explanatory view showing an example of a ceiling-embedded air conditioner according to the present invention, in which (A) is a perspective view corresponding to FIG. 4 (A), and (B) corresponds to (A). FIG. 4C is a perspective view corresponding to FIG. 4B, and FIG. 4D is a sectional view corresponding to FIG.
6A and 6B are perspective views showing a main part of another example of the ceiling-embedded air conditioner according to the present invention, in which FIG. 6A shows a wind direction change plate connected by a universal joint, and FIG. 6B shows a connection by a flexible joint. The wind direction change board made is shown.
7A and 7B are main part explanatory views showing another example of a ceiling-embedded air conditioner according to the present invention, in which FIG. 7A is a perspective view corresponding to FIG. 4A, and FIG. FIG. 4C is a perspective view corresponding to FIG. 4B, and FIG. 4D is a sectional view corresponding to FIG. 4C.
8A and 8B are explanatory views showing a support shaft portion of a ceiling-embedded air conditioner according to the present invention, in which FIG. 8A is an exploded perspective view and FIG. 8B is a side view.
FIG. 9 is a cross-sectional view of a ceiling-embedded air conditioner according to a conventional example.
FIGS. 10A and 10B are explanatory diagrams of a main part of a ceiling-embedded air conditioner according to a conventional example, in which FIG. 10A shows an example, and FIG. 10B shows another example.
[Explanation of symbols]
1 makeup panel
1a Corner
1b Bearing groove 2 Air outlet 3 Wind direction change plate
3a spindle
3b Front direction of wind direction change plate
3c Rear side of wind direction change plate
3d rib 4 joint
4a Sleeve bush
4b, 5 Connecting part 6 Universal joint
6 'Flexible joint 7 Motor
7a cam
7a 'Gear 8 Suction port 9 Filter
10 Fan motor
11 Blower fan
12 Heat exchanger
13 Insulation material

Claims (9)

In the ceiling-embedded air conditioner in which the air outlets are provided on the four sides of the decorative panel, and the air direction change plates provided with the support shafts are pivotally supported on these air outlets, respectively.
The air outlet is formed by a curved surface shape in which the air blowing direction is inclined outward, respectively, while the wind direction changing plate is made of a synthetic resin whose thickness is continuously changed, and its back surface is The front and rear portions in the short direction are formed in a curved surface shape by a thick wall shape having substantially the same thickness, and the surface is formed in a substantially flat shape except for a part thereof, and is continuous with the flat surface portion and at least short. A ceiling-embedded air conditioner characterized in that the rear part in the hand direction is formed in a curved shape corresponding to the rear inner surface of the air outlet. 2. The ceiling-embedded air conditioner according to claim 1, wherein the back surface of the wind direction changing plate is provided with ribs on at least the rear part in the longitudinal direction, and a heat insulating member is attached to the inside of the ribs. Machine. The gap between the peripheral edge of the air outlet and at least the front-rear part of the wind direction changing plate is narrowed, and is inclined toward the outside when viewed from below when the operation is stopped. The ceiling-embedded air conditioner according to claim 1, wherein the air outlet is shielded by a curved shape of the air outlet so that the inside of the air outlet is not visible. A cylindrical sleeve bush in which the support shaft portion is fitted with a substantially U-shaped bearing groove provided on each side in the longitudinal direction of the air outlet and a stopper corresponding to the bearing groove on both sides. 4. The ceiling-embedded air conditioner according to claim 1, further comprising a joint connected to the sleeve bush and simultaneously connected to a support shaft of the wind direction changing plate. A driving device for rotating the wind direction changing plate is provided at any one of the four corners of the decorative panel so that the four wind direction changing plates are rotated in conjunction with one driving device. The ceiling-embedded air conditioner according to claim 1 or 4, wherein the joints adjacent to each other at a corner portion of the decorative panel are connected to each other by a connecting portion. 6. The ceiling-embedded air conditioner according to claim 5, wherein the driving device includes a motor and a cam that converts a rotation of a driving shaft of the motor into a reciprocating motion and transmits the reciprocating motion to the connecting portion. . The ceiling-embedded air conditioner according to claim 6, wherein gears are provided on the drive shaft of the motor and the outer peripheral portion of the cam, respectively, so as to mesh with each other. The ceiling-embedded air conditioner according to claim 5 or 6, wherein the connecting portion is formed of a universal joint. The ceiling-embedded air conditioner according to claim 5 or 6, wherein the connecting portion is formed of a flexible joint.

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