JP3161979B2 - Ceiling-type air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling-suspended air conditioner which is hung below a ceiling.

[0002]

2. Description of the Related Art A well-known ceiling-mounted air conditioner includes four air conditioners, which are suspended above the ceiling so as to face an opening formed in the ceiling. (See, for example, Japanese Utility Model Laid-Open No. 4-50319).

In the case of a ceiling-mounted air conditioner having the above configuration,
The suspension fittings that lock the suspension bolts for suspending the air conditioner body may be exposed on the side of the air conditioner body that is hidden above the ceiling. Easy to do.

[0004]

However, in view of the demand for using an air conditioner of a plurality of directions (for example, four directions) to be hung and installed on the lower surface of a ceiling, a substantially rectangular air conditioner having a plurality of air outlets is required. An air conditioner including a casing, a heat exchanger disposed in the casing, and a blower is suspended from a ceiling lower surface by a suspension bolt and installed.

However, when the air conditioner is hung below the ceiling as described above, the entire casing is exposed. Therefore, it is not possible to expose the hanger for locking the hanger bolts from the viewpoint of design. . For this reason, it is necessary to devise the installation state of the hanging metal fittings, and it is necessary to provide a structure that can easily adjust the hanging height using the hanging bolts.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has an object of improving the design and improving the workability of installation by adopting a structure in which a hanging bracket is not exposed. It is.

[0007]

According to the basic structure of the present invention, as means for solving the above-mentioned problems, the apparatus is suspended from the lower surface of the ceiling C in an exposed state, and the air outlets 4A, 4B,. , A heat exchanger 2 and a blower 3 disposed in the casing 1
In the ceiling-suspended air conditioner provided with the above, work on the refrigerant pipes 14 constituting the heat exchanger 2 is performed at one of the four corners 1A, 1B,. while providing a working space 17 for the front <br/> SL four corners 1A, the 1B · ·, hanging to lock the hanger bolts 31 for hanging the air conditioner on the ceiling C, respectively bracket 16 and 16 ..., detachable corner cover 5A constituting the corner portions of the casing 1 with covering respective hanger 16, and 5B ... it
Re Installing attached, the four corners cover 5A, 5B ··
Inside the corner cover 5A.
Space 17 is located .

With the above configuration, when the air conditioner is installed, if the corner covers 5A, 5B,... Are removed, the suspension bolts 31 can be easily engaged with the suspension fittings 16, and When the corner covers 5A, 5B,... Are attached after the installation, the hanging bracket 16 and the work space 17 are not exposed, and the installation workability and design are improved.

In the basic configuration of the present invention, a suction grille 6 that covers the lower surface of the casing 1 including the corner cover 5A, 5B,... And has an air suction port 7 is attached to the casing 1 so as to be openable and closable. When the working openings 30 are respectively formed on the lower surfaces of the corner portion covers 5A, 5B,... After installation of the air conditioner,
When adjusting the installation state (for example, the suspension height by the suspension bolts 31), it is possible to insert the tool T from the work opening 30 and perform the adjustment work simply by opening the suction grille 6. This is preferred.

[0010]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

This ceiling-suspended air conditioner is shown in FIGS.
As shown in FIG. 1, a rectangular structure having air outlets 4A, 4B, 4C, and 4D on four sides (four side faces in the present embodiment) is suspended from the lower surface of the ceiling C by hanging bolts 31. A casing 1 having a shape, and disposed inside the casing 1 so as to be along the air outlets 4A, 4B, 4C, 4D, with both open ends 2a, 2b facing one corner 5A of the casing 1. Substantially annular heat exchanger 2
And a blower 3 arranged at the center of the heat exchanger 2.

The heat exchanger 2 is provided with a large number of plate-like fins 10, 10 for a plurality of heat transfer tubes 9, 9,.
・ ・ It is a cross fin coil type which is mounted in orthogonal state. Reference numeral 11 denotes both open ends 2 of the heat exchanger 2.
It is a tube sheet provided in a and 2b.

[0013] Between one open end 2a and 2b of the heat exchanger 2 in one corner 1A of the casing 1,
A piping space 13 partitioned by the partition member 12 is formed. The piping space 13 is configured to include a refrigerant pipe 14, a drain pump 15, a hanging bracket 16 for a hanging bolt, and the like, and to have a working space 17, and is configured separately from the casing 1. It is detachably attached to the casing 1 and is formed inside a corner cover 5A constituting a corner of the casing 1. In the case of the present embodiment, since the air conditioner is of a type exposed below the ceiling C, the on-site installation work needs to be performed inside the machine with the corner cover 5A removed. Therefore, the piping space 13 requires a considerably large space, and the two air outlets 4A and 4B sandwiching the piping space 13 are connected to the other air outlets (that is, opposite to the air outlets 4A and 4B). It becomes considerably smaller than 4C and 4D.

Further, the casing 1 covers three other corner portions 1B, 1C, and 1D, and the casing 1
The corner covers 5B, 5C and 5D constituting the corners are also separate from the casing 1 and can be attached to and detached from the casing 1. A hanging bracket 16 is provided. The corner covers 5A, 5B, 5C, and 5D are provided with the locking claws 32, 32 formed on both sides thereof, respectively.
A, 1B, 1C, locking holes 33 formed on both sides of 1D,
33 and the lower ends of the corner covers 5A, 5B, 5C, 5D and the corners 1A,
It is to be attached by screwing the lower ends of 1B, 1C and 1D, respectively (see FIG. 4).

Further, the corner cover 5A, 5B,
Working openings 30 for inserting the tool T are formed on the lower surfaces of 5C and 5D, respectively (see FIG. 3).

Further, on a lower surface of the casing 1, a suction grille 6 covering an entire area including the corner cover 5A, 5B, 5C, 5D and having an air suction port 7 in a central portion can be freely opened and closed by a hinge portion 27. Attached to. At the open end of the suction grill 6, an engaging portion 29 formed on the lower surface of the casing 1 on the side opposite to the hinge portion.
Reference numeral 8 denotes a filter provided with a locking portion 28 for locking to maintain the closed state.

The blower 3 is a turbo fan, and is arranged such that the suction port 19 faces a position corresponding to the air suction port 7 in the suction grille 6. Reference numeral 20 denotes a bell mouth.

In the drawing, reference numeral 24 is a drain pan, 25 is a horizontal blade, and 26 is a fan motor.

With the above configuration, when the air conditioner is installed, if the corner covers 5A, 5B, 5C, and 5D are removed as shown in FIGS. That is, the hanging bolts 31 can be easily locked to the hanging brackets 16 and the corner covers 5A, 5B, 5C, 5C after installation.
If D is attached, the hanging bracket 16 and work space
17 is not exposed, and the design is improved.

When adjusting the installation state (for example, the suspension height by the suspension bolts 31) after the installation of the air conditioner, as shown in FIG. Since the tool T can be inserted through the work opening 30, the adjustment operation can be easily performed.

In the above description, the case where the air outlets are formed on the four side surfaces of the casing is described as an embodiment, but the number of air outlets may be two or more. Also,
Although the suction grille covers the entire lower surface of the casing, the suction grill need not necessarily cover the entire lower surface as long as it covers the lower surface of the corner portion.

[0022]

According to the present invention, the lower surface of the ceiling C is exposed.
Installed suspended by state, the air outlet 4A a plurality of side surfaces,
In a ceiling-mounted air conditioner including a rectangular casing 1 having 4B... And a heat exchanger 2 and a blower 3 provided in the casing 1, four casings 1
One of the corners 1A, 1B,.
In, while providing a working space 17 which performs work on the refrigerant pipe 14 constituting the heat exchanger 2, the four <br/> corners 1A, the 1B · ·, the air conditioner in the ceiling C .., Each of which holds a suspension bolt 31 for suspension , and a detachable self- supporting cover which covers each of the suspension brackets 16 and forms a corner of the casing 1.
Standing a corner cover 5A, 5B and · only <br/> with Ri preparative, respectively it, the four corners cover 5A, of 5B ...
The working space is provided inside one corner cover 5A.
When the air conditioner is installed, the corner covers 5A, 5B,... Are removed so that the hanging bolts 31 can be easily locked to the hanging metal fittings. corner cover 5A, by attaching the 5B ··, hanging bracket and work
The industrial space 17 is not exposed, and there is an excellent effect that it is possible to achieve both improvement in installation workability and improvement in design.

Further, a suction grille 6 that covers the lower surface of the casing 1 including the corner portion covers 5A, 5B,... And has an air suction port 7 is attached to the casing 1 so as to be openable and closable. 5B ...
When the working openings 30 are respectively formed on the lower surface of the air conditioner, the installation state (for example,
When adjusting the suspension height by the suspension bolts), only by opening the suction grille 6, a tool can be inserted through the work opening 30 and adjustment can be easily performed.

[Brief description of the drawings]

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

FIG. 2 is a vertical side view of the ceiling-suspended air conditioner according to the embodiment of the present invention.

FIG. 3 is a perspective view showing a state in which a suction grille of the ceiling-mounted air conditioner according to the embodiment of the present invention is opened.

FIG. 4 is an exploded perspective view of a corner portion of the ceiling-mounted air conditioner according to the embodiment of the present invention.

FIG. 5 is a perspective view showing a corner portion for a piping space in the ceiling-mounted air conditioner according to the embodiment of the present invention.

[Description of Signs] 1 is a casing, 1A, 1B, 1C, 1D is a corner portion,
2 is a heat exchanger, 3 is a blower, 4A, 4B, 4C and 4D are air outlets, 5A, 5B, 5C and 5D are corner covers, 6 is a suction port, 7 is a suction grill, 14 is a refrigerant pipe, 1
6 is a hanging bracket, 17 is a working space, 30 is a working opening, 31 is a hanging bolt, C is a ceiling, T is a tool, and W is air.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-64-63733 (JP, A) JP-A-1-291022 (JP, A) JP-A-8-121860 (JP, A) JP-A-7-107 260194 (JP, A) Japanese Utility Model Hei 4-57128 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) F24F 1/00 F24F 13/32

Claims (2)

(57) [Claims] 1. A installed suspended ceiling (C) exposure under surface, air outlet to the plurality of side surfaces (4A), (4B) ·
A ceiling-mounted air conditioner comprising: a rectangular casing (1) having: a heat exchanger (2) and a blower (3) disposed in the casing (1). (1) Four corners (1A), (1B)
One of the corner portions (1A) of, while providing a working space (17) to perform work on the refrigerant pipe (14) constituting the heat exchanger (2), the four code <br / > Na portion (1A), it (1B) the ..., the ceiling (C) to the hanger bolts for hanging the air conditioner (31)
Hanger for respectively locking (16), (16) ... and, detachable corner cover constituting the corner portions of the casing (1) with covering the respective <br/> lifting lugs (16) (5A), (5B) and ... attach, respectively it, the 4
Corner cover (5A), one of (5B)
Inside the corner cover (5A),
A ceiling-mounted air conditioner, wherein a pace (17) is positioned . 2. The casing (1) including the corner portion covers (5A) and (5B) in the casing (1).
A suction grille (6) that covers the lower surface and has an air inlet (7) is openably and closably mounted, and a work opening (30) is formed on the lower surface of the corner covers (5A), (5B). The ceiling-suspended air conditioner according to claim 1, wherein each is formed.