JPH0519683Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to an air conditioner.

(Problems to be solved by conventional techniques and ideas) In an air conditioner, for example, a ceiling-mounted air conditioner, there is a centrifugal fan in the casing and a U-shape surrounding the side of the fan. It is generally constructed by disposing an air heat exchanger and a drain pan located below the air heat exchanger. On the other hand, when a centrifugal fan is used as an air blower in an air conditioner, Japanese Utility Model Publication No. 15704/1983 also discloses that a bell mouth for guiding the intake air is provided on the suction side of the centrifugal fan. It is a well-known technology.

However, as described above, in the case where the air heat exchanger is disposed on the side of the centrifugal fan so as to surround it, and the drain pan is disposed below the air heat exchanger, the fan's suction The bell mouth to be provided on the side is fixed to a support member that supports the lower surface of the drain pan. In this case, two joint parts are required: a joint part between the support member that supports the drain pan and the drain pan, and a joint part between the support member and the bell mouth. There was a problem in that positional deviations were likely to occur at the joining site, making it difficult to ensure the accuracy of mounting the bell mouth. If the installation accuracy of the bell mouth is incorrect, there will be an error in the clearance between the bell mouth and the fan suction side, which will cause an increase in air blowing noise and a decrease in air volume, so this is a problem that needs to be solved. It's coming.

This invention was made in view of the above points,
The purpose of the present invention is to reduce the number of joints of members arranged on the suction side of a centrifugal fan and improve the mounting accuracy of the bell mouth by integrating the member supporting the drain pan with the bell mouth. It is.

(Means for solving the problem) In the present invention, as a means for solving the above problem, as shown in the drawings, in the casing 5,
An air conditioner including a centrifugal fan 7, an air heat exchanger 6 surrounding the side of the fan 7, and a drain pan 10 located below the air heat exchanger 6. On the suction side of the fan 7, there is a bell mouth portion 13 which is close to the fan suction port 7a while reducing its diameter in the air suction direction to guide air sucked into the fan 7, and a bell mouth portion 13 that is horizontally outward from the base end of the bell mouth portion 13. and the top plate 5 of the casing 5
A plurality of support bolts 15, 15...
a hanging part 23 supported at the lower end of the hanging part 23;
a vertical portion 24 that extends vertically downward from the outer peripheral edge of the drain pan 10 and comes into contact with the inner peripheral surface of the drain pan 10;
and a flange-shaped drain pan support section 14 that extends horizontally outward from the lower end of the vertical section 24 and supports the lower surface of the inner peripheral side of the drain pan 10. .

(Function) In the present invention, the following effects can be obtained by the above means.

That is, there is a bell mouth portion 13 that is close to the fan suction port 7a while reducing its diameter in the air suction direction to guide air sucked into the fan 7, and a bell mouth portion 13 that extends horizontally outward from the base end of the bell mouth portion 13 and a hanging part 23 supported by the lower ends of a plurality of support bolts 15, 15... vertically installed from the top plate 5a of the casing 5;
A vertical portion 24 extends vertically downward from the outer peripheral edge of the hanging portion 23 and comes into contact with the inner peripheral surface of the drain pan 10, and a vertical portion 24 extends horizontally outward from the lower end of the vertical portion 24. A flange-shaped drain pan support portion 1 that supports the lower surface of the inner peripheral side of the drain pan 10
The wind guide member 12 formed integrally with the fan 7
By disposing the support bolts 15, 1 on the suction side of the
5... allows for the positioning of the bell mouth part 13 and the fan 7, as well as the positioning and support of the drain pan 10, which improves the assembly workability.
This makes it possible to suppress the occurrence of assembly errors as much as possible.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

The air conditioner of this embodiment is as shown in FIG.
An air conditioner body (hereinafter referred to as the body) 1 is suspended above an opening 3 formed in the ceiling C via hanging bolts 4, 4, and the opening is in contact with the lower surface of the body 1. The air conditioner is installed in the ceiling and includes a decorative panel 2 configured to cover the air conditioner 3.

The main body 1 includes a rectangular casing 5, a U-shaped air heat exchanger 6 disposed inside the casing 5, and a centrifugal fan 7 disposed inside the air heat exchanger 6. It is made up of In other words, the air heat exchanger 6 is arranged so as to surround the side of the fan 7, and the air sucked by the fan 7 from the air suction port 8 of the decorative panel 2 located below. Thereafter, heat is exchanged with the air W blown out in the centrifugal direction by the fan 7, and this is made into conditioned air. The conditioned air W thus obtained is blown into the room from the four air outlets 9 (see FIG. 2) of the decorative panel 2, thereby conditioning the air in the room.

A drain pan 1 is provided below the air heat exchanger 6.
0 is placed. The outer peripheral edge of the drain pan 10 is fixed to the side plate 5b of the casing 5. Further, the fan 7 is attached to the top plate 5a of the casing 5 via a fan motor 11.

Further, on the suction side of the fan 7, there is a bell mouth part 13 which is close to the fan suction port 7a and whose diameter is reduced in the air suction direction to guide the suction air to the fan 7, and a base of the bell mouth part 13. The top plate 5a of the casing 5 extends horizontally outward from the end.
A hanging portion 23 is supported by the lower ends of a plurality of support bolts 15, 15, etc., which are vertically installed from the drain pan 10, and a hanging portion 23 is provided vertically downward from the outer peripheral edge of the hanging portion 23, and is attached to the inner peripheral surface of the drain pan 10. a vertical portion 24 that comes into contact with;
A wind guiding member 12 is provided which is integrally formed with a flange-shaped drain pan support portion 14 extending horizontally outward from the lower end of the vertical portion 24 and supporting the lower surface of the inner peripheral side of the drain pan 10. The hanging portion 23 of the wind guide member 12 is provided with support bolts 15,
15... Nuts 1 each screwed onto the lower end
It is supported by the tightening force of 6, 16....

With this configuration, the plurality of support bolts 15, 1 hanging vertically from the casing top plate 5a
5...The bell mouth part 1 is fixed by the simple operation of supporting the hanging part 23 of the wind guide member 12 against the lower end.
3 and the positioning and support of the drain pan 10 can be performed.

The support bolt 15 is composed of a hexagonal columnar shaft portion 15a and a threaded portion 15b having a smaller diameter than the shaft portion 15a formed at the lower end of the shaft portion 15a, and the upper end of the shaft portion 15a is connected to the top plate of the casing. 5a. Further, the lower end of the threaded portion 15b is an arcuate surface. In this embodiment, four support bolts 15 are used to support the vicinity of the four corners of the hanging portion 23 of the wind guide member 12.

On the other hand, the hanging portion 23 of the wind guide member 12 is formed with an insertion hole 17 into which the threaded portion 15b of the support bolt 15 is inserted (see FIG. 3). A guide portion 18 is formed at the periphery of the insertion hole 17 by raising a portion of the hanging portion 23 in an inverted conical shape. The guide portion 18 inserts the threaded portion 15b of the support bolt 15 into the insertion hole 17 when attaching the suspension portion 23 to the support bolt 15.
It acts to guide you.

In the drawing, reference numeral 19 is a mounting bracket provided on the decorative panel 2 side, 20 is a mounting bolt for attaching the decorative panel 2 to the main body 1, 21 is a suction grill, and 22 is a filter.

The wind guide member 12 configured as described above is attached as follows.

That is, while the vertical portion 24 of the wind guide member 12 and the flange-shaped drain pan support portion 14 are in contact with the inner circumferential surface and the inner circumferential lower surface of the drain pan 10, respectively, Threaded portions 15 of support bolts 15, 15...
b, 15b..., the insertion hole 17 of the suspension part 23,
17..., these threaded parts 15b,
The wind guide member 12 is attached by screwing the nuts 16, 16... to the respective supports 15b..., but when aligning the threaded parts 15b, 15b... and the insertion holes 17, 17..., each support The arcuate surface of the tip of the threaded portion 15b of the bolt 15 is smoothly guided by the guide portion 18 formed around the periphery of the insertion hole 17 of the hanging portion 23.
This allows the threaded portion 15b and the insertion hole 17 to be aligned extremely easily. The fact that the support bolt 15 and the insertion hole 17 can be easily aligned in this way means that the insertion hole 17 can be formed as close to the diameter of the threaded portion 15b of the support bolt 15 as possible, and the wind guide member 12 This greatly contributes to the prevention of positional deviation errors.

It should be noted that the present invention is not limited to the configuration of the above-mentioned embodiments, and it goes without saying that the design can be changed as appropriate without departing from the gist of the invention.

(Effect of the invention) As described above, according to the invention, a centrifugal fan 7, an air heat exchanger 6 surrounding the side of the fan 7, and an air heat exchanger 6 are provided in the casing 5. In an air conditioner in which a drain pan 10 is disposed below the fan 7, a fan suction port 7a is provided on the suction side of the fan 7 and is reduced in diameter in the air suction direction to guide the air sucked into the fan 7. a bell mouth portion 13 adjacent to the bell mouth portion 13; and a plurality of support bolts 15, 1 extending horizontally outward from the base end of the bell mouth portion 13 and hanging from the top plate 5a of the casing 5.
5... a hanging part 23 supported at the lower end, and a vertical part 2 extending vertically downward from the outer peripheral edge of the hanging part 23 and abutting on the inner peripheral surface of the drain pan 10.
4 and a flange-shaped drain pan support part 14 extending horizontally outward from the lower end of the vertical part 24 and supporting the lower surface of the inner peripheral side of the drain pan 10 are provided. Therefore, the support bolts 15, 1 for positioning and fixing the wind guide member 12 are
5... allows for the positioning of the bell mouth part 13 and the fan 7, as well as the positioning and support of the drain pan 10, which improves the assembly workability.
This makes it possible to suppress the occurrence of assembly errors as much as possible, and has the practical effect of reducing blowing noise and preventing a decrease in air volume.

In addition, since the wind guiding member 12 is adopted in which the bell mouth portion 13, the hanging portion 23, the vertical portion 24, and the drain pan support portion 14 are integrally formed, the number of parts and assembly man-hours are reduced. It also has the effect of making it possible to achieve

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of an air conditioner according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the air conditioner shown in FIG. 1, and FIG. FIG. 3 is an exploded cross-sectional view showing a connecting portion between a conductive member and a support bolt. 5... Casing, 5a... Top plate, 6... Air heat exchanger, 7... Fan, 7a... Fan suction port, 10... Drain pan, 12... Wind guide member, 1
3... Bell mouth part, 14... Drain pan support part, 15... Support bolt, 23... Hanging part, 24
...Vertical section.

Claims (1)

[Scope of utility model registration request] An air conditioner in which a centrifugal fan 7, an air heat exchanger 6 surrounding the side of the fan 7, and a drain pan 10 located below the air heat exchanger 6 are arranged in the casing 5. In the machine, on the suction side of the fan 7, there is a fan suction port 7 whose diameter is reduced in the air suction direction in order to guide the suction air to the fan 7.
At the lower end of the bell mouth portion 13 adjacent to a, and a plurality of support bolts 15, 15, . A supported hanging part 23, a vertical part 24 extending vertically downward from the outer peripheral edge of the hanging part 23 and abutting the inner peripheral surface of the drain pan 10, and a lower end of the vertical part 24. The drain pan 1 extends horizontally outward from the drain pan 1.
A wind guide member 12 integrally formed with a flange-shaped drain pan support part 14 that supports the lower surface of the inner peripheral side of the wind guide member 12
An air conditioner characterized by being provided with.