JP3813407B2 - Embedded ceiling air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure for leading out a lead wire of a blower to the outside of an air conditioner body in a ceiling-embedded air conditioner.
[0002]
[Prior art]
In general, a blower in a ceiling-embedded air conditioner includes a heat exchanger bent in a substantially square shape in the air conditioner body, and a partition plate that connects both ends of the heat exchanger at one corner of a substantially square shape. Is installed in the space formed by the air conditioner main body, after the lead wire of the blower is rolled over the top surface of the air conditioner body, and is lowered along the inner surface of the heat exchanger. It is common to be derived out.
[0003]
[Problems to be solved by the invention]
However, in the space formed by the heat exchanger and the partition plate, when the blower installed in the space is driven, air flows for blowing air, so the lead wire of the blower is connected to the inner surface of the heat exchanger. If it is lowered along the line, there is a problem that the lead wire vibrates and generates noise.
[0004]
Therefore, an object of the present invention is to solve the problems of the conventional technology described above, and in the space formed by the heat exchanger and the partition plate when the lead wire of the blower is led out of the air conditioner body. An object of the present invention is to provide a ceiling-embedded air conditioner that can alleviate the adverse effects on the lead wires caused by the blown air and that the lead wires are less vibrated by the blown air and suppress the generation of vibration noise.
[0005]
[Means for Solving the Problems]
The invention described in claim 1 includes a heat exchanger bent in a substantially square shape in the air conditioner body, a partition plate connecting both ends of the heat exchanger at one corner of a substantially square shape, and the heat exchange. In a ceiling-embedded air conditioner having a blower installed in a substantially central space of the vessel, the fan is bent only in the long side of the partition plate by bending the partition plate into a substantially L shape having a long side and a short side. And a space for retreating from the blowing direction of the blower in the same space as the blower of the blower in the vicinity of the short side of the partition plate. The lead wire is fixed to the short side of the partition plate and led out of the air conditioner main body through the retreat space.
[0008]
In these inventions, the partition plate is bent into a substantially L shape having a long side and a short side, and arranged so that the blower blows only on the long side of the partition plate, and in the vicinity of the short side of the partition plate space wind of the blower be a forms a space for retracting the blowing direction of the blower in a space the same space to be blown to the retracted to fix the lead wire of the blower to the short side of the partition plate Because it is configured to lead out to the outside of the air conditioner main body, the air blown by driving the blower does not hit the lead wire, and it is less affected by the blower of the blower, so that noise due to vibration is reduced Can do.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
[0010]
FIG. 1 shows a ceiling-embedded air conditioner. This ceiling-embedded air conditioner has an air conditioner body 1 made of sheet metal, and the air conditioner body 1 is suspended from a ceiling by suspension bolts 2.
[0011]
As shown in FIG. 2, the air conditioner body 1 is formed in a substantially rectangular box shape. In FIG. 2, when the upper part of the air conditioner main body 1 is opened and embedded in the ceiling, the opening side faces the room to be conditioned.
[0012]
Inside the air conditioner main body 1, a polystyrene foam heat insulator 3 is arranged in a state of being substantially in contact with the inner surface of the side plate 1 </ b> A of the air conditioner main body 1. The height H1 of the heat insulator 3 is set to a height obtained by subtracting the height H3 of the drain pan 13 described later from the height H2 of the air conditioner body 1.
[0013]
A motor 5 is fixed to the top plate 1 </ b> B of the air conditioner body 1, and an impeller 7 is attached to the shaft of the motor 5. These constitute the blower 9. A heat exchanger 11 bent into a substantially square shape so as to surround the blower 9 is disposed inside the heat insulating body 3 made of polystyrene foam.
[0014]
A drain pan 13 made of styrene foam is disposed so as to cover the lower surface 11A of the heat exchanger 11, and the drain pan 13 is disposed with its outer periphery 13A substantially in contact with the inner surface of the side plate 1A of the air conditioner body 1. Yes.
[0015]
Various components such as a reinforcing member 15, a nozzle 17 of the blower 9, and an electrical box 19 are screwed to the drain pan 13.
[0016]
As shown in FIG. 1, a decorative panel 21 is attached to the lower surface of the air conditioner main body 1, and an inlet 22 and an outlet 23 are formed in the decorative panel 21, and a filter 25 is provided in the inlet 22. Is installed.
[0017]
FIG. 3 shows a state in which the air conditioner body 1 is viewed from below, and shows a state in which the drain pan 13 is removed.
[0018]
In the present embodiment, as shown in FIG. 3, the heat exchanger 11 in the air conditioner body 1 is bent into a substantially square shape so as to surround the blower 9, and end plates 11 </ b> B and 11 </ b> C at both ends thereof are substantially square. Are connected by a partition plate 30 at one corner A, and the partition plate 30 is bent into a substantially L shape (see FIG. 2) so as to protrude in the direction in which the blower 9 is located. An electric expansion valve 32 connected to the refrigerant pipe 34 is disposed outside the partition plate 30, and the refrigerant pipe 34 is connected to the heat exchanger 11 through the electric expansion valve 32, and after passing through the heat exchanger 11, A refrigerant pipe 36 is connected. Further, a drain pump 36 is disposed outside the heat exchanger 11 and in the upper right part in the drawing, and the drain recovered by the drain pan 13 is discharged from the drain discharge pipe 38 by the drain pump 36.
[0019]
In the present embodiment, when the blower 9 rotates in the direction of the arrow (clockwise), as described above, the partition plate 30 is bent into a substantially L shape and the blower 9 blows the air inside the short side 30A of the partition plate 30. A space B that is retracted from the direction is formed. That is, the air from the blower 9 is blown so as to collide with the long side 30 </ b> B of the partition plate 30, and is not blown into the space B that retreats from the blowing direction.
[0020]
The lead wire 40 connected to the motor 5 is guided to the space B to be retracted. The lead wire 40 connected to the motor 5 moves toward the space B after the top plate 1B of the air conditioner main body 1 is rolled up. In the top plate 1 </ b> B of the air conditioner body 1, the lead wire 40 is covered and fixed by the plate cover 46.
[0021]
Subsequently, as shown in FIG. 4, the lead wire 40 falls along the short side 30 </ b> A of the partition plate 30 and is locked and fixed by a plurality of clampers 44. In this way, the lead wire 40 is guided and fixed to the space B retracted from the air blowing direction, and is led out of the air conditioner main body 1.
[0022]
In this embodiment, the partition plate 30 is bent in a substantially L shape in the direction of the blower 9 so that the air blown by driving the blower 9 against the long side 30B of the partition plate 30 is hit. The inner side of the short side 30 </ b> A is not easily affected by the air blowing, and a space B that retreats from the air blowing direction of the blower 9 is formed there.
[0023]
Therefore, since the lead wire 40 is guided to the space B and led out of the air conditioner main body 1, the lead wire 40 is stably fixed and hardly affected by the air flow even when the blower 9 is driven. There is little sound generation and it is quiet.
[0024]
As mentioned above, although this invention was demonstrated based on one Embodiment, it is clear that this invention is not limited to this. The bending form of the partition plate 30 is not limited to a substantially L shape. It is obvious that any form may be used as long as the space B is formed.
[0025]
【The invention's effect】
In the present invention, the partition plate is bent into a substantially L shape having a long side and a short side, and arranged so that the blower blows only on the long side of the partition plate, and in the vicinity of the short side of the partition plate. through space wind of the fan there is a space to be saved from the blowing direction of the blower in a space the same space to be blown to the retracted to fix the lead wire of the blower to the short side of the partition plate Since it is configured to be led out of the air conditioner main body, the air blown by driving the blower does not hit the lead wire, and is less affected by the blower of the blower, so that noise caused by vibration can be reduced. it can.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of a ceiling-embedded air conditioner according to the present invention.
FIG. 2 is an exploded perspective view of the ceiling-embedded air conditioner.
FIG. 3 is a plan view of the air conditioner body.
4 is a view taken along arrow IV in FIG. 3 and shows a state of fixing lead wires.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Air conditioner main body 3 Heat insulator 5 Motor 7 Impeller 9 Blower 11 Heat exchanger 13 Drain pan 21 Cosmetic panel 30 Partition plate 40 Lead wire 44 Clamper

Claims (1)

A heat exchanger bent in a substantially square shape in the air conditioner body, a partition plate connecting both ends of the heat exchanger at one corner of a substantially square shape, and installed in a substantially central space of the heat exchanger In a ceiling-embedded air conditioner having a blower,
The partition plate is bent into a substantially L-shape having a long side and a short side, and is arranged so that the blower blows only on the long side of the partition plate. Forming a space for retreating from the blowing direction of the blower in the same space as the space where the wind is blown ,
A ceiling-embedded air conditioner characterized in that a lead wire of the blower is fixed to a short side of the partition plate and led out of the air conditioner main body through the retreat space.

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