JP2000046361A - Ceiling flush type air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a ceiling flush type air conditioner comprising a fan and a heat exchanger arranged in the wind path in a cabinet in which generated dews can be collected surely while reducing heat loss by securing a baffle plate for partitioning the primary air on the air inlet side of a cabinet and the secondary air on the air outlet side to a front plate on the air outlet side. SOLUTION: Primary air sucked from an air inlet 1a of a cabinet 1 is subjected to heat exchange through a heat exchanger 3 and blown out as air conditioned air (secondary air) from an air outlet 1b. Dews formed in the heat exchanger 3 drop to be stored in a drain pan 4. Dews may be formed if a temperature difference exist between the secondary air and the air in the ceiling on the outside of the cabinet 1. A primary air layer having heat insulating function is thereby formed by disposing a baffle plate 5 between the secondary air and the air in the ceiling on the outside of the a side plate 1d. Consequently, dews are formed by temperature difference not on the outer shell of the cabinet 1 but on the outside of the baffle plate 5 and collected in the drain pan 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an in-ceiling type air conditioner disposed in an indoor ceiling.

[0002]

FIG. 8 is a plan sectional view showing a conventional ceiling-mounted air conditioner, FIG. 9 is a side sectional view of the ceiling-mounted air conditioner of FIG. 8, and FIG. 10 is a ceiling-mounted air conditioner. It is a perspective view which shows the principal part of a machine. In the drawing, reference numeral 1 denotes a cabinet of an air conditioner, which is provided with a suction port 1a for sucking outside air as primary air, and an outlet 1b for blowing conditioned air as secondary air,
Further, an air passage 1c is formed from the inlet 1a to the outlet 1b. 2 and 3 are the airways 1 in this cabinet 1
The air blower and the heat exchanger arranged in c are arranged in order from the inlet 1a to the outlet 1b. A drain pan 4 is disposed below the heat exchanger 3. 5 is a pair of partition plate main bodies for fixing the heat exchanger 3 and partitioning the primary air and the secondary air so as to partition the primary air and the secondary air, and a cabinet side mounting edge portion 5a for fixing to the side plate 1d of the cabinet 1;
And a heat exchanger mounting edge 5b for fixing the side plate 3a of the heat exchanger 3.

A heat insulating member 6 is provided between the upper part of the heat exchanger 3 and the upper plate 1e of the cabinet 1 for heat insulation of the heat exchanger 3. Reference numeral 7 denotes a blowing side heat insulating member attached to the inside of the upper surface plate 1e, the inside of the front plate 1f, and the inside of the side plate 1d on the secondary air side of the cabinet 1.

Next, the operation will be described. The primary air sucked from the inlet 1a of the cabinet 1 is heat-exchanged by the heat exchanger 3 and the secondary air, which has become conditioned air, is discharged from the outlet 1
It is blown out from b. At this time, the primary air exchanges heat and condenses on the heat exchanger 3. The dew falls and is stored by the drain pan 4. The heat exchanged secondary air is supplied to the cabinet 1
When there is a temperature difference from the air inside the ceiling outside the cabinet, the air stays in the cabinet 1 and heat leaks from the cabinet 1 and dew forms on the outer surface of the cabinet 1 such as the top plate 1e.

As a second conventional example, Japanese Patent Application Laid-Open No. 6-159719 discloses a technique using a vinylidene chloride foam as a heat insulating member disposed in a cabinet. According to the company, it is possible to reduce the size of the machine and save space in the equipment stored in the cabinet.

[0006]

In the conventional ceiling-mounted air conditioner, a partition plate for partitioning the primary air on the suction side and the secondary air on the discharge side is disposed between the heat exchanger side plate and the cabinet side plate. Therefore, the dimension in the width direction of the heat exchanger is increased, and as a result, the width dimension of the unit is increased. This increases the volume of the area where the secondary air stays in the cabinet and increases the contact area with the secondary air after heat exchange with the cabinet that is in contact with the ceiling air, increasing heat loss. This causes air conditioning efficiency to decrease. In addition, dew on the cabinet outer wall was generated, and the ceiling material could be wetted.

As a countermeasure, it is necessary to attach a large amount of heat insulating members, which increases the size of the cabinet and wastes resources and costs.

The present invention has been made in order to solve the above-mentioned problems, and has as its object to reduce the heat loss by reducing the size of a cabinet or the like.

Another object of the present invention is to reliably collect the dew generated on the partition plate without dropping it on the ceiling.

Another object of the present invention is to eliminate a contact portion between the secondary air and the outer shell of the cabinet, omit a heat insulating member in the cabinet, and reduce the cost.

[0011]

SUMMARY OF THE INVENTION A ceiling-embedded air conditioner according to the present invention forms a main body of an air conditioner, and is provided with a primary air inlet and a secondary air outlet. In a device in which a blower and a heat exchanger are sequentially arranged in an air passage, a partition plate for separating primary air on a suction side and secondary air on a blow side of the cabinet is attached and fixed to a front plate on a blow outlet side of the cabinet. It is provided.

Further, in the ceiling-mounted type air conditioner of the present invention, a heat exchanger is disposed in a cabinet in an inclined manner.

Further, in the ceiling-mounted air conditioner of the present invention, the partition plate in the cabinet is arranged in a gate-shaped cross section.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, a ceiling-mounted air conditioner according to Embodiment 1 of the present invention will be described. FIG. 1 is a plan view showing a ceiling-mounted air conditioner according to Embodiment 1 of the present invention, FIG. 2 is a side view showing the ceiling-mounted air conditioner of FIG. 1, and FIG. 3 is a ceiling-mounted air conditioner. It is a perspective view which shows the principal part of a machine. Reference numeral 1 denotes a cabinet of an air conditioner, which is provided with a suction port 1a for sucking outside air as primary air, and an outlet 1b for blowing conditioned air as secondary air, and an air passage 1c from the suction port 1a to the outlet 1b. Is formed. Reference numerals 2 and 3 denote a blower and a heat exchanger arranged in the air passage 1c in the cabinet, which are sequentially arranged from the inlet 1a to the outlet 1b. A drain pan 4 is disposed below the heat exchanger 3. Reference numeral 5 denotes a pair of partition plate bodies for fixing the heat exchanger 3 and partitioning the primary air and the secondary air so as to separate the primary air and the secondary air. The cabinet front mounting edge 5c fixed to the front plate 1f on the outlet side of the cabinet 1 Is formed on one side and the side plate 3a of the heat exchanger 3 is formed on the other side.
Is fixed.

A heat insulating material 6 is provided between the upper part of the heat exchanger 3 and the upper plate 1e of the cabinet 1 to insulate the heat exchanger 3. Reference numeral 7a denotes a blowing side upper heat insulating material which is attached to the inside of the upper surface plate 1e of the cabinet 1 on the secondary air side.

Next, the operation of the first embodiment will be described. The primary air sucked from the inlet 1a of the cabinet 1 is heat-exchanged by the heat exchanger 3 and the secondary air converted into conditioned air is blown out from the outlet 1b. At this time, the primary air exchanges heat and condenses on the heat exchanger 3. The dew falls and is stored by the drain pan 4.

When there is a temperature difference between the heat-exchanged secondary air and the air inside the ceiling outside the cabinet 1, the secondary air heat-exchanged with the air inside the ceiling outside the side plate 1d of the cabinet 1. Between the secondary air, a primary air layer having a heat-insulating function is formed by the partition plate 5 of the first embodiment into a kind of heat-insulating material, so that the dew due to the temperature difference does not adhere to the outer shell of the cabinet 1. , Condensation on the outside of the partition plate 5,
The dew falls into the drain pan 6 and is collected.

Embodiment 2 FIG. FIG. 4 is a plan view showing a ceiling-mounted air conditioner according to Embodiment 2 of the present invention.
FIG. 5 is a side view showing the ceiling-mounted air conditioner of FIG. 4. In the second embodiment, the upper part of the heat exchanger 3 is inclined forward from the first embodiment shown in FIGS. 1 and 2 so that the upper part of the heat exchanger 3 on the upper plate 1e of the cabinet 1 and the outlet 1b Is set to zero. , Partition plate 5
Is formed on one side with a cabinet front mounting edge 5c which is fixed to the front side plate 1f on the outlet side of the cabinet 1 and on the other side in accordance with the inclination angle of the heat exchanger 3.
a is provided so as to fix a.

Embodiment 3 FIG. 7 is a perspective view showing a partition plate body according to Embodiment 3 of the present invention. The partition plate body 5 for partitioning the primary air and the secondary air is formed on one side with a cabinet front mounting edge portion 5c fixed to the front plate 1f on the outlet side of the cabinet 1 on the one side. Side plate 5e for fixing the side plate 3a of the container 3
And the upper partition part 5f to form a gate section.

[0020]

As described above, in the ceiling-mounted air conditioner of the present invention,
A cabinet that forms an air conditioner main body and has a primary air inlet and a secondary air outlet, in which a blower and a heat exchanger are sequentially arranged in an air passage in the cabinet, the suction side of the cabinet; The partition plate that separates the primary air from the secondary air on the outlet side is connected to the front plate on the outlet side of the cabinet, so that the cabinet can be downsized, heat loss can be reduced, and air conditioning can be performed. It has the effect of increasing efficiency.

In the ceiling-mounted air conditioner of the present invention, since the heat exchanger is arranged in the cabinet at an angle, the dew generated on the partition plate is reliably prevented from falling on the ceiling. Has the effect of being recoverable.

In the ceiling-mounted type air conditioner of the present invention, since the partition plate in the cabinet is arranged in a gate-shaped cross-section, the heat insulating member in the cabinet can be omitted, and the cost of the whole equipment can be reduced. Has the effect of lowering

[Brief description of the drawings]

FIG. 1 is a plan view showing an embedded ceiling air conditioner according to Embodiment 1 of the present invention.

FIG. 2 is a side view showing the ceiling-mounted air conditioner according to Embodiment 1 of the present invention.

FIG. 3 is a perspective view showing a partition plate according to the first embodiment of the present invention.

FIG. 4 is a plan view showing an embedded ceiling air conditioner according to Embodiment 2 of the present invention.

FIG. 5 is a side view showing an embedded ceiling air conditioner according to Embodiment 2 of the present invention.

FIG. 6 is a perspective view showing a partition plate according to a second embodiment of the present invention.

FIG. 7 is a perspective view showing a partition plate according to a third embodiment of the present invention.

FIG. 8 is a plan view showing a conventional ceiling-mounted air conditioner.

FIG. 9 is a side view showing a conventional ceiling-mounted air conditioner.

FIG. 10 is a perspective view showing a conventional partition plate.

[Explanation of symbols]

1 cabinet, 1a inlet, 1b outlet,
1c air passage, 1f front side plate at outlet side, 2 blower,
3 heat exchanger, 5 dividers.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Atsushi Edayoshi 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsui Electric Co., Ltd. (72) Inventor Ryo Oya 2-3-2 Marunouchi, Chiyoda-ku, Tokyo 3 (72) Inventor Eiji Fukushima 2-3-2 Marunouchi, Chiyoda-ku, Tokyo F-term (reference) 3L050 BA01 BA05 3L051 BE04

Claims (3)

[Claims] 1. A cabinet which forms an air conditioner main body and has a primary air inlet and a secondary air outlet, wherein a blower and a heat exchanger are sequentially arranged in an air passage in the cabinet. An embedded ceiling type air conditioner, wherein a partition plate for separating primary air on the suction side and secondary air on the outlet side of the cabinet is connected to a front plate on the outlet side of the cabinet. 2. The ceiling-mounted air conditioner according to claim 1, wherein a heat exchanger is disposed in the cabinet at an angle. 3. A ceiling-embedded air conditioner according to claim 1, wherein the partition plate in the cabinet is arranged in a gate-shaped cross section.