JPH0330738Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an air conditioner that includes an evaporator and a fan motor unit attached to a fan mounting plate within a main body casing.

<Conventional technology> Conventionally, this type of air conditioner was
The one shown in the figure is known (Utility Kaikai 59-
Publication No. 193919). This air conditioner 41 includes an evaporator 44 in a main body casing 43 suspended in the ceiling 42, and a fan motor unit consisting of a fan 47 and a motor 48 attached to an outer periphery flange 46 of an opening 45 at one end of the main body casing 43. 40 is attached via a fan mounting plate 49, and an outer frame 50 with an L-shaped cross section of the fan mounting plate 49 is connected to a suction panel 52 provided on the ceiling surface 51 by a suction duct 53, and the air in the room 54 is drawn in the direction indicated by the arrow. Inhale like A,
It is cooled by an evaporator 44 and blown out into a blow-off duct 55 as shown by arrow B.

<Problems to be solved by the invention> However, in the above conventional air conditioner, the opening 45 at one end of the main body casing 43 is connected to the fan mounting plate 4.
9 and one end of the suction duct 53 is fitted onto the outer frame 50 of the fan mounting plate 49 and fixed from the outside with bolts, so that the fins and caps of the evaporator 44 on the downstream side of the fan mounting plate 49 are closed. Pillaritube,
When inspecting electric valves, etc. by measuring their temperature or checking how dirty their fins are, one worker must enter the attic space 42, first remove the bolts mentioned above, remove the suction duct 53, and then remove the fan motor unit. Remove the fan mounting plate 49 to which the fan 40 is fixed from the main body casing 43 as shown in FIG.
It must be lowered from the ceiling 42. Therefore, another worker is required to support the considerably heavy fan mounting plate 49 from below in the room, which requires time and effort for inspection work, and also has drawbacks such as the need to increase the height of the ceiling. Furthermore, since the fan motor unit is removed to inspect the equipment on the downstream side, it is not possible to inspect the entire air conditioner 41 while it is being operated, and there is a drawback that the accurate operating state cannot be confirmed.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an air conditioner in which downstream equipment can be easily inspected from the indoor side while operating the entire air conditioner without removing the fan mounting plate.

<Means for Solving the Problems> In order to achieve the above object, the air conditioner of the present invention has a fan mounting plate 4 attached to the main body casing 1, as illustrated in FIGS. 1 and 2. The present invention is characterized in that a fan motor unit 5 and an evaporator 10 are disposed, an opening 8 for inspection is provided in the fan mounting plate 4, and a lid 9 that can be opened and closed is provided in the opening 8.

<Function> The operator inserts his/her hand into the main body casing 1 with all the equipment still attached from the indoor side, and opens the openable/closable lid 9 provided in the inspection opening 8 of the fan mounting plate 4. Then, a thermometer is inserted through this opening 8 to measure the temperature of the fins of the evaporator 10, the capillary tube, the electric valve, etc., and to check the degree of dirt on the fins to check the temperature of the equipment downstream of the fan motor unit 5. Carry out an inspection. In this way, since all the equipment remains attached to the main body casing 1, the equipment can be inspected while operating the air conditioner.

<Example> Hereinafter, the present invention will be explained in detail with reference to the illustrated example.

Figures 1 and 2 are a vertical cross-sectional view and a cross-sectional view, respectively, of an air conditioner, in which 1 is a main body casing suspended from a ceiling slab (not shown), and 2 is a suction inlet provided on the lower surface of one end of this main body casing 1. 3 is an air outlet provided at the other end of the main casing 1; 4 is a fan mounting plate that partitions the inside of the main casing 1;
5 has discharge ports 6a, 6 at the front end of this fan mounting plate 4.
A fan motor unit consisting of fans 6, 6 to which a is fixed and a motor 7 for driving these fans,
Reference numeral 8 indicates a pair of openings for inspection provided at the lower part of the fan mounting plate 4, 9 indicates a pair of lids that can be opened and closed provided in the opening 8, and 10 indicates an air outlet 3 on the downstream side of the fan motor unit 5. This is an evaporator installed nearby.

A suction panel 12 is attached to the ceiling surface 11 below the suction port 2, and the suction panel 12 and the suction port 2 are connected by a suction duct 13, and an air filter 14 is attached to the suction port 2. On the opposing rear side surfaces of the fans 6, 6, there is a locking metal fitting 15 in the form of a mold extending upwardly so as to connect the fans 6, 6.
At the same time, a square-shaped support fitting 16 is fixed to the upper inner surface of the main body casing 1 so as to vertically engage with the locking fitting 15, and both fittings 15 and 16 are fixed with tapping screws 17. A heater 18 and a humidifier 19 are provided as necessary on the downstream side of the fan motor unit 5, and a capillary tube 20 and an electric valve 21 are provided between the evaporator 10 and a compressor (not shown) (see FIG. reference).

As shown in FIGS. 3 and 4, the fan mounting plate 4 has a right-angled bent portion 22 on the upper side, an obtuse-angled bent portion 23 on the lower side, a right-angled bent portion 24 on the left and right sides,
24 and extending over the entire width on the upper inner surface of the main body casing 1.
(see Fig. 1), the right-angled bent portions 24, 24 are brought into contact with the inner side wall of the main casing 1, and a blind extending over the entire width of the lower inner surface of the main casing 1 is engaged. Tapping screws 28 are inserted into the screw holes 27, 27 by abutting the obtuse bent portion 23 on the plate 26 (see FIG. 1).
is fixed. Moreover, openings 30, 30 for fan mounting, whose left and right edges are reinforced with ribs 29, 29, are provided in the upper part of the fan mounting plate 4, and the discharge ports 6a, 6a of the fans 6, 6 are fixed therein. As shown in FIG. 4, the openable and closable lid 9 has an engaging bent portion 31 on the upper side and an obtuse bent portion 32 on the lower side, and the engaging bent portion 31 is placed above the inspection opening 8. The obtuse bent portion 32 of the lower side of the fan mounting plate 4 is engaged with the edge 8a, and the obtuse bent portion 32
3 and is fixed so as to cover the opening 8 from the upstream side (see FIG. 3) with a tapping screw 34 (see FIGS. 4 and 5) that passes through the screw hole 33. In addition,
At the center of the fan mounting plate 4 is a mounting base 35 for the motor 7.
A screw seat 36 is provided for fixing (see FIG. 2).

With the above configuration, the equipment downstream of the fan motor unit 5 is inspected as follows.

The worker removes the suction panel 12 on the ceiling surface 11 from the room 37 and passes through the suction duct 13 to the suction port 2.
Remove the air filter 14. Next, the tapping screw 28 is removed and the lid 9 attached to the inspection opening 8 of the fan mounting plate 4 is removed. Then, a thermometer is inserted through this opening 8 and the fin of the evaporator 10 is
Heater 18, capillary tube 20, electric valve 2
Inspect the equipment by measuring the temperature of the first class, checking how dirty the fins are, and checking the condition of the humidifier. At this time, the fan motor unit 5 etc. necessary for operating the air conditioner are not removed at all, so the above equipment can be inspected while operating the air conditioner.
Accurate operating status can be confirmed.

In the above embodiment, the fan motor unit 5 is not only supported by the engagement metal fitting 25 via the right-angled bent portion 22 of the fan mounting plate 4 at the front, but also supported by the support metal fitting 16 via the locking metal fitting 15 at the rear. Therefore, the fan mounting plate 4 is connected to the fan motor unit 5.
Even when it is removed from the main body casing 1 together with the main body casing 1, even one worker can easily and safely remove it.

Note that the openable and closable lid provided on the inspection opening 8 can also be rotatably attached to the opening 8 with a butterfly plate or the like.

<Effects of the invention> As is clear from the above explanation, the air conditioner of the present invention has a fan motor unit and an evaporator attached to a fan mounting plate arranged inside the main body casing, and a checker is installed on the fan mounting plate. Provide an opening for
Since this opening has a lid that can be opened and closed, it is possible to easily inspect the equipment from inside the room while operating the air conditioner without removing the fan mounting plate from the main body casing, increasing the efficiency of inspection work. It can be significantly improved.

[Brief explanation of the drawing]

Figures 1 and 2 are a vertical cross-sectional view and a cross-sectional view of the air conditioner of the present invention, and Figures 3 and 4 are front and side views, respectively, of the fan mounting plate of the air conditioner of the present invention. , Fig. 5 is a front view of the lid provided in the opening of this fan mounting plate, Fig. 6 is a vertical sectional view of a conventional air conditioner, and Fig. 7 shows how to attach the fan motor unit of Fig. 6. FIG. 1...Body casing, 4...Fan mounting plate,
5...Fan motor unit, 8...Opening, 9
...Lid, 10...Evaporator.

Claims (1)

[Scope of Claim for Utility Model Registration] In an air conditioner in which a fan motor unit attached to a fan mounting plate and an evaporator are arranged inside the main body casing, an opening for inspection is provided in the fan mounting plate, and this opening An air conditioner characterized by having a lid that can be opened and closed.