JPH08254355A - Ceiling built-in type air conditioning device - Google Patents

Abstract

PURPOSE: To provide a ceiling built-in type air conditioner device in which a height of a main body of the device can be easily adjusted. CONSTITUTION: An ornamental panel 7 fixed to a lower surface of ceiling 1 is provided with service ports 23a, 23b removably fixed. A main body 4 of one device is provided with fixing elements 2a, 2b for use in hanging the main body 4 and concurrently fixing holes arranged inn the fixing elements 2a, 2b are set at a substantial above position of time service ports 23a, 23b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling-embedded air conditioning unit suspended in a ceiling space.

[0002]

2. Description of the Related Art In a ceiling-embedded air conditioning unit, a decorative panel is attached to the main body after the main unit is suspended in the ceiling space, and a gap is created between the decorative panel and the ceiling surface. As disclosed in Japanese Utility Model Publication No. 62-3620, the cover of the decorative panel is opened and the height of the main body is adjusted from the service port.

[0003]

In the ceiling-embedded air conditioning unit presented in the above publication, since the nut of the suspender is located on substantially the same line as the edge of the service port, the installation height of the unit body is adjusted. In order to do this, the operator must put the upper body into the ceiling space from the service port and turn the nut with a tool such as a spanner. Therefore, check whether the decorative panel is evenly in contact with the lower surface of the ceiling. There was a problem that it was difficult to adjust the installation height of the unit body because the nut could not be turned while looking from above.

It is an object of the present invention to provide a ceiling-embedded air conditioning unit that facilitates the height adjustment work of the unit body.

[0005]

In order to achieve this object, according to the present invention, a decorative panel attached to the lower surface of the ceiling is provided with a service port to which a lid is detachably attached, while the unit main body is provided with this main body. A mounting tool for hanging is provided, and a mounting hole provided in this mounting tool is provided almost directly above the service port.

If a gap is created between the lower surface of the ceiling and the decorative panel, the cover of the decorative panel is opened to open the service port, and the mounting hole of the mounting tool is located just above the service port. Is located, the state of the fixture can be easily confirmed and / or operated from below the service port.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. In a ceiling-embedded air conditioning unit, fixtures 2a and 2b are suspended in a space of a ceiling 1 by suspenders 3a and 3b. The unit main body 4 is installed and installed, and a decorative panel 7 provided on the lower surface of the main body 4 and having a suction port 5 and a blowout port 6 communicating with an air passage in the main body 4. Inside the unit main body 4, two partition plates 8a and 8b are provided.
Is divided into a blow-side ventilation passage 9 and a suction-side ventilation passage 10, a heat exchanger 11 is provided in the blow-side ventilation passage 9, and two double-suction centrifugal centrifugal fans 12 and a motor 13 are provided in the suction-side ventilation passage 10. It is provided.

The fan case 14 of the centrifugal blower 12
Is divided into an upper half fan case portion 14a including the suction port portion 15a and the discharge port 16 and a lower half fan case portion 14b including the suction port other portion 15b. By forming the upper half fan case portion 14a integrally with one of the partition plates 8a made of sheet metal, the fan case portion 14a is projected from the partition plates 8a and 8b toward the blow-out side ventilation passage 9. Has become.

The other partition plate 8b is fitted with a fitting part 17 with which the one partition plate 8a is fitted, an opening 18 with which the fan case part 14a is fitted, and suction air to a part of the suction port 15a. An air guide portion 19 extended to the outlet side air passage 9 for being guided from the suction side air passage 10 and a drain pan 20 for receiving drain water generated in the heat exchanger 11 are integrally formed of expanded polystyrene.

Further, the decorative panel 7 includes a suction panel 21 which is detachably attached to the center of the open portion of the decorative panel 7,
An air filter 22 which is detachably attached above the suction panel 21, service openings 23a and 23b formed at both ends of the decorative panel 7, and lids 24a and 24b which detachably open and close the service opening. It is provided. Above the respective service ports 23a, 23b, the above-mentioned hanging tools 2a, 2b and nuts 25a, 25b screwed to the hanging tools and supporting the fittings 2a, 2b are arranged. . In other words, the fixtures 2a, 2 are located at positions almost directly above the service ports 23a, 23b.
There is a mounting hole for b.
Insert a and 3b and screw nuts 25a and 25b.

Reference numeral 26 is an operation tool provided as an accessory for turning the nuts 25a, 25b from below the service ports 23a, 23b, and 27a, 27b are the fittings 2.
The hooking tool is provided on the decorative panel 7 for attaching to a and 2b, and has a darma hole 28 on one side and a round hole 29 and a hooking piece 30 on the other side. Next, the installation work of the ceiling-embedded air conditioning unit will be described. First, the unit main body 4 is pushed into the ceiling space 32 from the ceiling hole 31, and the four suspenders 3a preliminarily fixed to the ceiling space 32, When the holes of the fixtures 2a and 2b of the unit main body 4 are fitted to 3b and the nuts 25a and 25b are screwed from below, the fixtures 2a and
2b is supported by nuts 25a and 25b, and the main body 4 is installed in the ceiling space 32. After that, as shown in FIG. 3, the locking piece 33a of one of the fittings 2a and 2b is preliminarily fixed with a screw 34a, and the hook 2 is attached to the head of the screw 34a.
The large diameter portion of the dharma hole 28 of 7a is fitted and the decorative panel 7
By sliding in the direction of the arrow, the small diameter portion of the dharma hole 28 engages with the screw 34a, and the other locking piece 33b engages with the hooking piece 30 of the hooking tool 27b. Is temporarily stopped by. During this temporary fixing work, the suction panel 21 is opened or removed, and when the screw 34a is tightened from the open portion of the decorative panel 7 and the hook 27b is attached to the locking piece 33a with the screw 34b, the decorative panel is removed. 7 is securely fixed to the unit body 4.

By fixing the decorative panel 7 to the unit body 4 in this manner, the ceiling hole 31 is closed and the installation work of the air conditioning unit is completed. However, as described above, the unit body 4 is installed in the ceiling space 32. At the time of attaching, the installation height of the main body 4 is set as a guide, and therefore, there is a concern that a gap may be formed between the decorative panel 7 and the lower surface of the ceiling 1. When such a gap is formed, the lids 24a and 24b of the decorative panel 7 are opened and the service ports 23a and 23b are opened with the suction panel 21 removed as shown in FIG.

Here, the nuts 25a and 25b screwed into the mounting holes of the mounting tools 2a and 2b are positioned directly above the service ports 23a and 23b, as described above. Therefore, as shown in FIG. 5, an operating tool, which is an accessory, is inserted straight into the service ports 23a, 23b, and the fitting portion 35 formed at the tip of the operating tool is fitted with the nuts 25a, 2b.
5b, and the operation tool 2 while looking at the gap between the decorative panel 7 and the lower surface of the ceiling 1 from below the service ports 23a, 23b.
By rotating 6 with the driver 36, the height adjustment work for shifting the unit body 4 upward to a predetermined height position where the decorative panel 7 contacts the lower surface of the ceiling 1 can be easily performed. Then, the suction panel 21 is attached (see FIG. 4).

When the installation work is completed and the centrifugal fan 24 is driven by the electric motor 13 during the cooling and heating operation, one of the indoor air sucked into the suction side ventilation passage 10 from the suction port 5 of the decorative panel 7 through the air filter 22. Partition is 8b
While being sucked into a part 15a of the suction port of the fan case upper half part 14a through the air guide part 19, the rest of the room air is sucked into another part of the suction port 15b of the fan case lower half part 14b and discharged. It is blown out from 16 to the blower side ventilation passage 9.
After that, the blown out room air is distributed in the left-right direction, cooled by the heat exchanger 11 during cooling, heated during heating, and then descends along the heat insulating sheet 37.
The air is blown out in two directions from the air outlet 6 to heat and cool the room.

When the heat exchanger 11 and the drain pan 20 are contaminated by the cooling and heating operation, the suction panel 21, the air filter 22, the fan case 14, and the centrifugal fan 24.
By pulling and from the open portion of the decorative panel 7, it is possible to clean from the opening 18. Further, the unit main body 4 is provided with a support case 38 having a U-shaped cross section fixed to the outer wall and an electric equipment case 39 having an inverted U-shaped cross section which fits into the case, and the suction panel 21 and the lid 24a. And the electrical equipment case 39 is lowered along the support case 38 to remove the electrical equipment case 39 from the open surface 39a of the electrical equipment case 39.
You can check the electrical components inside.

[0016]

As described above, according to the present invention, the mounting hole for the suspender for suspending the main body of the ceiling-embedded air conditioning unit is located at a position just above the service port provided on the decorative panel. Since it is provided, the installation height of the unit main body for adhering the decorative panel to the ceiling lower surface can be easily adjusted by operating while watching the gap between the decorative panel and the ceiling lower surface from a position lower than the ceiling. You can

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a ceiling-embedded air conditioning unit.

FIG. 2 is a sectional view of the ceiling-embedded air conditioning unit taken along line II-II in FIG.

FIG. 3 is a perspective view of a main part of the unit.

FIG. 4 is an exploded perspective view of the unit.

FIG. 5 is a cross-sectional view showing a height adjustment state of the unit.

[Explanation of symbols]

 1 Ceiling 2a, 2b Fixture 4 Unit body 5 Suction port 6 Air outlet 7 Decorative panel 11 Heat exchanger 12 Blower 23a, 23b Service port 24a, 24b Lid

Claims (1)

[Claims] 1. A unit main body having a heat exchanger and a blower built therein and installed in a ceiling space, and a decorative panel having a suction port and a blowout port provided on a lower surface of the ceiling and communicating with an air passage in the unit main body. In the ceiling-embedded air conditioning unit configured from, the decorative panel is provided with a service port to which a lid is detachably attached, while the unit main body is provided with a fixture for suspending the main body. The ceiling-embedded air conditioning unit, wherein a mounting hole provided in the mounting tool is provided substantially directly above the service port.