JP2000111081A - Ceiling flush type air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a ceiling flush type air conditioner having a heat insulating drain pan in which assembling workability is enhanced while reducing the vertical dimensions by employing a drain pan being split vertically while having opposite joints and forming the lower drain pan, a decoration panel, a guide member and a bell mouth integrally. SOLUTION: A bell mouth 2a is disposed between a fan 4 and an air inlet 2 and a guide member 2b having a streamline upper surface, is disposed between the lower section of a heat exchanger 6 and the fan in order to guide an air flow from the air inlet 2 substantially uniformly toward a heat exchanger 6. A drain pan disposed at the lower part of the heat exchanger 6 is split vertically while having opposite joints. The drain pan comprises upper and lower drain pans 7', 7 stacked while forming an air gap part (a) wherein the lower drain pan 7, a decoration panel 8, the guide member 2b and a bell mouth 2a are formed integrally. Since the drain pan can form an airtight air gap part (a), heat insulation performance is stabilized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-ceiling type air conditioner, and more particularly, to a hollow tray having a hollow shape to provide heat insulation, and to have a dew tray, a guide member and a bell mouth. And a structure integrally formed.

[0002]

2. Description of the Related Art As shown in FIG. 6, for example, a conventional ceiling-mounted air conditioner has a suction opening 2 provided with a suction grill 12 at the center on the lower surface of a main body casing 1 embedded in a ceiling surface. A decorative panel 8 having an outlet 3 provided around the inlet 2 is attached, and an air passage 5 connecting the inlet 2 and the outlet 3 formed in the main body casing 1 is provided. A heat exchanger 6 and a blower including a motor M and a fan 4 having opposing vertical drive shafts are provided. A dew tray 7 is provided below the heat exchanger 6, and a lower part of the heat exchanger 6 is provided. And a guide member 2b whose upper surface is formed in a streamlined manner and guides the suction airflow from the suction port 2 toward the heat exchanger 6 almost uniformly, and the fan 4 and the fan 4 The bell mouth 2a was provided between the suction port 2 and the suction port 2.

In the above configuration, since the separate decorative panel 8 is further disposed below the dew tray 7, the vertical dimension is increased by that much, and the dimension H2 is increased. Had.

[0004] Further, the dew receiving tray 7 is, for example, a real open flat -6.
As disclosed in U.S. Pat. No. 73616, there is known a technology in which hollow molding is performed to enhance heat insulation performance to prevent dew. However, in this case, the technology is used for a ceiling embedded type air conditioner. There is a problem that the height dimension of the hollow molded portion is likely to be non-uniform due to a suitable shape of the dew receiving tray 7 and molding conditions, and therefore, the heat insulating performance is difficult to stabilize. Further, in the case where the dew receiving tray 7 forms the hollow molded part by bonding a plurality of components, post-processing for the bonding is required and productivity is deteriorated. There is a problem that the heat insulation performance is difficult to stabilize as the confidentiality becomes unstable.

Further, the guide member 2b is provided in Japanese Patent Laid-Open No. 2-1
As disclosed in Japanese Unexamined Patent Publication No. 71520, the inner peripheral portion of the upper surface of the fan 4 is arranged close to the outer peripheral portion of the lower surface of the shroud 4a of the fan 4 so that the fan 4 The flow on the side of the shroud 4a adheres to the upper surface of the guide member 2b. The Coanda effect occurs, and the flow of the wind is attracted downward.
Although the peeling area from 4a had an effect of being effectively reduced, since the guide member 2b was provided as a separate member, the workability for that was poor and the cost was disadvantageous. .

[0006]

SUMMARY OF THE INVENTION In view of the above problems, in the present invention, the dew tray is formed in a hollow shape to provide heat insulation, and the dew tray, the decorative panel, the guide member, and the bell mouth are connected to each other. An object of the present invention is to provide a ceiling-mounted air conditioner having a small vertical dimension and good assembling workability by being integrally formed.

[0007]

According to the present invention, in order to solve the above-mentioned problems, a suction port is provided at the center on the lower surface of a main body casing embedded in a ceiling surface, and an air outlet is provided around the suction port. A blower including a motor and a fan having a vertical drive shaft opposed to the suction port is provided in an air passage connecting the suction port and the blowout port with a decorative panel attached thereto and formed in the main body casing. A heat exchanger is provided, and a dew tray is provided at a lower portion of the heat exchanger, and an upper surface is formed in a streamlined manner between a lower portion of the heat exchanger and the blower, and suction air from the suction port is provided. In a ceiling-mounted air conditioner provided with a guide member for guiding a flow substantially uniformly toward the heat exchanger, and a bell mouth provided between the fan and the suction port, the dew trays face each other. Split up and down with joints The lower dew pan, the decorative panel, the guide member, and the bell mouth are formed integrally with the upper dew pan and the lower dew pan, which are superposed to form a gap. It has become.

[0008] Further, the joint portion is constituted by both side surfaces of the upper dew pan and the lower dew pan having the upper part expanded, and the upper and lower side faces are closely contacted to form the gap. Has become.

Further, the upper and lower dew pans are provided with holding means for holding the upper and lower side surfaces in close contact with each other.

In addition, a cylindrical drainage part is hung down on the bottom surface of the upper dew tray, and a cylindrical fitting part which fits the outer shape of the drainage part is provided upright on the lower dew tray. ing.

Further, the drainage hole of the drainage portion is formed in a tapered shape with a distal end portion widened, and a fitting body fitted in the drainage hole, and a flange formed continuously at a base end of the fitting body. And the fitting body is fitted into the drainage hole, and the flange is brought into proximity to or in contact with the peripheral edge of the drainage hole.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below as examples based on the attached drawings. FIG. 1 and FIG.
3 (A) and 3 (B), FIGS. 4 (A) and 4 (B), and FIG. 5, reference numeral 1 denotes a ceiling-embedded air conditioner which is embedded in a ceiling surface. Body casing,
Numeral 8 is a synthetic resin such as ABS (acrylonitrile butadiene styrene), which is attached to the lower surface of the main body casing 1 and has a suction port 2 provided with a suction grille 12 in the center and an outlet 3 provided around the suction port 2. Fabricated decorative panels,
Reference numeral 5 denotes an air passage formed in the main body casing 1 so as to pass through the suction port 2 and the blowout port 3. The air passage 5 has a driving shaft in a vertical direction facing the suction port 2. And a heat exchanger 6 having a dew tray below, and a blower comprising a fan M having a shroud 4a at the bottom, and a fan M having a shroud 4a at the bottom. Is provided with a bell mouth 2a, and the heat exchanger 6
A guide member 2b is provided between the lower part of the fan and the blower, the upper surface of which is formed in a streamlined manner to guide the suction air flow from the suction port 2 toward the heat exchanger 6 almost uniformly. It has a configuration.

The dew tray provided at the lower portion of the heat exchanger 6 is divided into upper and lower portions having opposed joints, and an upper dew tray 7 'and a lower The lower dew tray 7, the decorative panel 8, the guide member 2b, and the bell mouth 2a are formed integrally with each other, whereby the upper dew tray 7 is formed. ′ And the lower dew pan 7
The air gap a having good airtightness can be formed, the heat insulation performance is stabilized, and dew can be effectively prevented, and the post-processing for bonding as in the above-described conventional technology is unnecessary. In addition, the workability can be improved and the structure is advantageous in cost. In addition, since the lower exposure pan 7 and the decorative panel 8 are integrally formed, the vertical dimension H1 can be reduced, and the mounting space can be reduced. can do.

The joint for joining the upper dew tray 7 'and the lower dew tray 7 is shown in FIGS.
(B) As shown in FIG.
And the lower dew receiving tray 7 has both sides 7'b and 7b, and the upper and lower sides 7'b and 7b are in close contact to form the gap a. The upper dew pan 7 ′ can be easily and accurately joined to the lower dew pan 7 from above, and
By making the both side surfaces 7'b and 7b, whose upper portions are expanded, close to each other, a structure is realized in which the air gap a having good airtightness can be accurately formed.

Further, since the upper and lower side surfaces 7'b and 7b constituting the joint are formed substantially in parallel, the both side surfaces 7'b and 7b can be in close contact with each other accurately, and the confidentiality is improved. The configuration is such that the gap a can be accurately formed.

The upper and lower dew trays 7 'and 7' are provided with holding means for holding the upper and lower side surfaces 7'b and 7b in close contact with each other. The upper and lower side surfaces 7'b and 7b are accurately retained so as not to come off.

As a first example, as shown in FIGS. 4A and 4B, a holding means for holding the upper and lower side surfaces 7'b and 7b is provided. Corresponding to the upper edge of at least one side 7b of the upper dew tray 7 '
The first locking claw 7d protruding from the upper portion is configured to be configured so that the upper dew receiving tray 7 'can be accurately held so as not to be rubbed or detached from the lower dew receiving tray 7. As a result, the structure is made such that the height of the gap a is not changed.

As shown in FIGS. 4 (A) and 4 (B), a cylindrical drainage portion 9 is provided on the bottom surface 7'a of the upper dew tray 7 '.
While the lower dew pan 7 is provided with a tubular fitting part 10 that is fitted up to the outer shape of the drainage part 9, whereby the upper dew pan 7 ′ and the A drainage channel can be formed in the dew tray composed of the lower dew tray 7, and although not shown, a drain hose is connected to the drainage channel so that the condensed water dropped from the heat exchanger 6 can be discharged to the outside.

Further, while the outer shape of the drain portion 9 is formed to have a tapered shape, the corresponding inner diameter of the fitting portion 10 is
Since the drainage portion 9 is formed in a shape substantially parallel to the outer shape of the drainage portion 9, the drainage portion 9 can be easily and accurately fitted to the fitting portion 10.

As shown in FIG. 5, the drainage hole of the drainage portion 9 is formed in a tapered shape in which the front end is expanded.
A water stopcock 11 comprising a fitting body 11a fitted into the drainage hole and a flange 11b formed continuously at the base end of the fitting body 11a is provided, and the fitting body 11a is fitted into the drainage hole,
The flange 11b is configured to be close to or in contact with the peripheral edge of the drain hole, so that if the drain hole of the drain portion 9 is to be plugged, Thus, the drain hole can be accurately plugged, and the periphery of the location is covered with the flange 11b so that the appearance is not impaired.

Further, since the water stopcock 11 is made of a member such as rubber or synthetic resin having elasticity, the drainage hole of the drainage part 9 can be more accurately plugged. Become.

[0022]

As described above, according to the present invention, the dew tray is formed in a hollow shape to provide heat insulation, and the dew tray, the guide member, and the bell mouth are integrally formed, so that the vertical direction is improved. It is a ceiling-mounted air conditioner with small dimensions and good assembly workability.

[Brief description of the drawings]

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

FIG. 2 is an exploded sectional view of the ceiling-mounted air conditioner according to the present invention.

3A and 3B are explanatory views of a main part of the ceiling-mounted air conditioner according to the present invention, wherein FIG. 3A is an exploded perspective view of a dew tray and FIG. 3B is a sectional view.

4A and 4B are explanatory views of a main part of a ceiling-mounted type air conditioner according to the present invention, wherein FIG. 4A is an exploded view of a drainage channel, and FIG.

FIG. 5 is an explanatory view of a main portion of the ceiling-mounted air conditioner according to the present invention, and is an exploded view of plugging a drainage channel.

FIG. 6 is a sectional view of a ceiling-mounted air conditioner according to a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body casing 2 Inlet 2a Bell mouth 2b Guide member 3 Outlet 4 Fan 4a Shroud 5 Air passage 6 Heat exchanger 7 'Upper dew tray 7'a Bottom of upper dew tray 7'b Side of upper dew tray 7 Lower dew Receiving tray 7a Bottom of lower dew receiving tray 7b Side of lower dew receiving tray 7d First locking claw 7f Rib 8 Decorative panel 9 Drainage part 10 Fitting part 11 Water stopcock 11a Fitting body 11b Flange 12 Suction grill a Void

Claims (5)

[Claims] A decorative panel having a suction port provided in the center and a blow-out port provided around the suction port is mounted on a lower surface of a main body casing embedded in a ceiling surface, and the decorative panel is formed in the main body casing. In the air passage connecting the suction port and the outlet, a blower and a heat exchanger including a motor and a fan having a vertical drive shaft facing the suction port are provided,
A lower part of the heat exchanger is provided with a dew tray, and an upper surface is formed in a streamlined manner between the lower part of the heat exchanger and the blower, and the suction air flow from the suction port is transmitted to the heat exchanger. A ceiling-embedded air conditioner provided with a guide member that guides almost uniformly toward the fan, and a bell mouth provided between the fan and the suction port, wherein the dew tray has upper and lower joints facing each other. The lower dew pan, the decorative panel, the guide member, and the bell mouth are formed integrally with each other. A ceiling-mounted air conditioner characterized by the following. 2. The method according to claim 1, wherein the joining portion includes both sides of the upper dew pan and the lower dew pan having an expanded upper part, and the upper and lower sides are closely contacted to form the gap. The ceiling-mounted air conditioner according to claim 1, wherein: 3. A holding means for holding the upper and lower dew pans in a state where the upper and lower side surfaces are in close contact with each other.
2. The ceiling-mounted air conditioner according to 1. 4. A cylindrical drainage portion hanging down from a bottom surface of the upper dew receiving tray, and a cylindrical fitting portion fitted to an outer shape of the drainage portion is provided upright on the lower dew receiving tray. The ceiling embedded type air conditioner according to claim 1, wherein 5. A drainage hole of the drainage part is formed in a tapered shape with a distal end part widened, and a fitting body fitted in the drainage hole, and a flange formed continuously at a base end of the fitting body. 5. A water stopcock comprising: a fitting member fitted into the drain hole, and the flange being brought close to or in contact with a peripheral portion of the drain hole. 6. 2. The ceiling-mounted air conditioner according to 1.