JP2000257901A - Ceiling-mounted air conditioner - Google Patents

Abstract

(57) [Summary] [PROBLEMS] A thin-walled dew receiving member constituting a drain pan,
Provided is a ceiling-embedded air conditioner integrally formed with a guide portion provided between a lower portion of a heat exchanger and a blower fan and for uniformly guiding a suction air flow toward the heat exchanger. SOLUTION: A drain pan 7 is composed of a heat insulating member 10 formed in a substantially concave cross section and a thin-walled dew receiving member 11 laid on the upper part of the heat insulating member. The structure was made up of a generally U-shaped cross-section extending part extending to one side of the member.

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 thin-walled dew receiving member constituting a drain pan, a lower portion of a heat exchanger, and a blower fan. The present invention relates to a structure integrally formed with a guide portion which is provided and uniformly guides a suction air flow toward the heat exchanger.

[0002]

2. Description of the Related Art As shown in FIGS. 5 and 6, for example, a conventional ceiling-mounted air conditioner is provided with a suction port 2 in the center of the lower surface of a case body 1 embedded in the ceiling surface and blows air around the lower surface. A fan motor 4 having an outlet 3 and having a vertical drive shaft opposed to the inlet 2 in an air passage connecting the inlet 2 and the outlet 3 formed in the case body 1;
And a heat exchanger 6 provided with a blower fan 5, a drain pan 7 provided below the heat exchanger 6, and a bell mouth 9 provided between the blower fan 5 and the suction port 2. Configuration.

However, when the suction air sucked from the suction port 2 is sent from the blower fan 5 to the heat exchanger 6 as shown by an arrow a in FIG. There is a problem that turbulence as shown by an arrow a 'is generated to lower the blowing efficiency and cause noise.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides a thin-walled dew receiving member constituting a drain pan, a lower portion of a heat exchanger, and a blower fan. It is an object of the present invention to provide a ceiling-embedded air conditioner in which a guide portion for uniformly guiding a flow toward the heat exchanger is integrally formed.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an inlet at a center of a lower surface of a case body embedded in a ceiling surface, an air outlet at a periphery of the lower surface, and an inside of the case body. An air passage connecting the formed suction port and the blow-off port is provided with a fan and a heat exchanger including a fan motor and a blower fan having a vertical drive shaft facing the suction port, and the heat exchanger. A drain pan is provided at the lower part of the exchanger, and the upper surface is formed in a streamlined manner between the lower part of the heat exchanger and the blower so that the suction air flow from the suction port is substantially uniformly directed toward the heat exchanger. A guide portion is provided, and a bell mouth is provided between the blower fan and the suction port. The drain pan is provided on a heat insulating member having a substantially concave cross-sectional shape and an upper portion of the heat insulating member. Composed of thin-walled dew receiving member Is, the guide portion has a structure consisting of extending out cross-section opposite generally U-shaped extending portion at one side of the dew receiving member.

[0006] Further, a concave portion having a substantially U-shaped cross section orthogonal to the extended portion is formed in the extended portion having a substantially U-shaped inverted cross section.

Further, a plurality of concave portions having a substantially U-shaped cross section are formed.

[0008] Further, both sides of the dew receiving member and the distal end position of the extending portion are formed so as to be located on substantially the same virtual plane.

[0010] Further, a flange substantially opposing the bell mouth is formed at an end of the extension portion by bending.

[0010]

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.
As shown in FIGS. 3 (A) and 3 (B), and FIGS. 4 (A) and 4 (B), reference numeral 1 denotes a case body embedded in a ceiling surface; A suction port provided in the center of the lower surface, 3 is an air outlet provided in the periphery of the lower surface, 4 is provided in an air passage connecting the air inlet and the air outlet formed in the case main body. A fan motor having a drive shaft in the up-down direction facing thereto, 5 is a blower fan driven by the drive shaft of the fan motor 4, and 6 is a heat exchanger disposed between the blower fan 5 and the outlet 3. In a container,
The fan motor 4 and the blower fan 5 constitute a blower. Reference numeral 7 denotes a drain pan provided below the heat exchanger 6, and reference numeral 8 denotes a drain pan provided between the lower part of the heat exchanger 6 and the blower. A guide portion 9 for uniformly guiding the flow toward the heat exchanger 6 is a bell mouth provided between the blower fan 5 and the suction port 2.

The drain pan 7 is composed of a heat insulating member 10 having a substantially concave cross section, and a thin-walled dew receiving member 11 provided on the heat insulating member 10. It has a configuration in which an extension portion 8 having a substantially U-shaped cross section and extending to one side of the dew receiving member 11 is provided, whereby the thin dew receiving member 11 constituting the drain pan 7, The guide portion 8 provided between the lower portion of the heat exchanger 6 and the blower fan 5 and uniformly guiding the suction airflow from the suction port 2 toward the heat exchanger 6 is integrally formed. With this structure, the blowing efficiency can be increased by a cost-effective configuration so that noise is not generated.

In addition, the extension portion 8 having a substantially U-shaped cross section is
As shown in FIGS. 4A and 4C, the extension 8
By forming the concave portion 8b having a substantially U-shaped cross section orthogonal to the above, the strength of the extending portion 8 can be enhanced.

Further, by forming a plurality of concave portions 8b having a substantially U-shaped cross section, the strength of the extending portions 8 can be more effectively increased.

Further, since the both sides of the dew receiving member 11 and the distal end position of the extending portion 8 are formed so as to be located on substantially the same virtual plane, for example,
When the 11 and the extending portion 8 are integrally formed, the structure of the mold can be simplified, and post-processing such as cutting unnecessary portions can be easily performed after the forming process.

Further, by forming a flange 8a substantially opposite to the bell mouth 9 at the distal end of the extension portion 8, the strength of the extension portion 8 is enhanced and the extension portion 8 is formed. The configuration is such that the suction air from the suction port 2 does not flow into the inside, so that noise is not generated at the location.

With the above configuration, FIG. 1, FIG. 2, and FIG.
(A) and FIG. 3 (B), FIG. 4 (A) and FIG.
(B), the drain pan 7 is constituted by a heat insulating member 10 formed in a substantially concave cross section, and a thin-walled dew receiving member 11 laid on top of the heat insulating member 10. The guide portion 8 is substantially U-shaped in cross section extending to one side of the dew receiving member 11.
Since it is configured to include the letter-shaped extending portion 8, the thin-walled dew receiving member 11 constituting the drain pan 7 and the heat exchanger 6
And a guide portion 8 provided between the lower portion of the fan and the blower fan 5 for uniformly guiding the suction air flow from the suction port 2 toward the heat exchanger 6.
An air conditioner with a built-in ceiling can reduce the noise by increasing the blowing efficiency by a configuration advantageous in cost.

[0017]

As described above, according to the present invention, a thin-walled dew receiving member constituting a drain pan is provided between a lower portion of a heat exchanger and a blower fan, and a suction air flow is supplied to the heat exchanger. A ceiling-embedded air conditioner integrally formed with a guide portion that uniformly guides toward the ceiling.

[Brief description of the drawings]

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

FIG. 2 is a cross-sectional view of a main part of the ceiling-mounted air conditioner according to the present invention.

FIG. 3 is a sectional view of a main part of the ceiling-mounted air conditioner according to the present invention, wherein (A) shows a dew receiving member constituting a drain pan,
(B) shows a heat insulating member.

FIG. 4 is an enlarged sectional view of a main part of the ceiling-mounted air conditioner according to the present invention, wherein (A) shows a dew receiving member constituting a drain pan, (B) shows a heat insulating member, and (C) shows ( A shown in A)
It is an arrow view.

FIG. 5 is a sectional view of a ceiling-mounted air conditioner according to a conventional example.

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case main body 2 Inlet 3 Outlet 4 Fan motor 5 Blower fan 6 Heat exchanger 7 Drain pan 8 Guide part, extension part 8a Flange 8b Concave part 9 Bell mouth 10 Heat insulation member 11 Exposure receiving member

Claims (5)

[Claims] An air passage is provided at a center of a lower surface of a case body embedded in a ceiling surface, an air outlet is provided around a lower surface, and an air passage connecting the air inlet formed in the case body and the air outlet is provided. A heat exchanger and a blower including a fan motor and a blower fan having a vertical drive shaft opposed to the suction port, a drain pan provided at a lower part of the heat exchanger, and a lower part of the heat exchanger. And between the blower, while providing a guide portion having a streamlined upper surface to guide the suction air flow from the suction port toward the heat exchanger substantially uniformly, and the blower fan and the suction port The drain pan is constituted by a heat insulating member formed in a substantially concave cross-section, and a thin-walled dew receiving member superimposed on the heat insulating member. Extends to one side of the dew receiving member Ceiling embedded air conditioner characterized by comprising the section opposite substantially U-shaped extension portion which. 2. The ceiling-embedded type according to claim 1, wherein a recess having a substantially U-shaped cross section orthogonal to the extended portion is formed in the extended portion having a substantially U-shaped cross section. Air conditioner. 3. The air conditioner according to claim 2, wherein a plurality of recesses having a substantially U-shaped cross section are formed. 4. The apparatus according to claim 1, wherein both sides of said dew receiving member and a tip end of said extension are formed so as to be located on substantially the same virtual plane. 3. The ceiling-mounted air conditioner according to 2. 5. The ceiling-embedded air according to claim 1, wherein a flange substantially facing the bell mouth is formed at the tip of the extension portion. Harmony machine.