JPS629448Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of the air outlet portion of a ceiling-suspended air conditioner, and is particularly aimed at preventing dew condensation on the air outlet portion.

An embodiment of this invention will be described below.
1 and 2, reference numeral 1 denotes a frame of a predetermined width that forms the framework of the air conditioner, and as shown in FIG. The bent upper plate 3 is superimposed at the respective bent portions 2a to 2c, 3a, and 3b, and assembled by spot welding or the like into a substantially U-shaped cross section, especially the lower end side bent portions 2d of the side plates 2. is inclined upward from approximately the center toward the front side of the frame 1, and there is a through hole 4 in the overlapping part on the upper surface side for inserting and fixing a suspension bolt (not shown) to the ceiling.
is provided. A heat exchanger 5 is housed in one half of the front side of the frame 1, and is supported by a support plate 6 fixed between the side plates 2. Reference numeral 7 denotes a blower that is housed in one half of the rear side and blows air to the heat exchanger 5. Fixed. Reference numeral 9 denotes a cut-and-raised piece cut and raised outward in a trapezoidal shape approximately at the center of the both-side plates of the rear side of the heat exchanger chamber A side, that is, the both-side plates 2; A cutout space 10 equivalent to the cut-and-raised piece 9 is formed, and the cut-and-raised piece 9
A square hole 11 is bored at a predetermined height position.
Reference numeral 12 denotes a drain pan that is formed to become deeper from the front side to the rear side of the frame 1 and covers the lower surface of the heat exchanger. Contains the drain generated in the The front end of the drain pan 12 rises substantially vertically from the bottom surface of the drain pan 12, and has a horizontal surface 13 formed by bending its edge horizontally. And drain pan 12
At the rear end thereof, it rises along the slope of the trapezoidal notch 10, and has a discharge port 14 at the bottom of this rising surface, making the whole plate-shaped. 1
5 is a mounting piece provided on the rear rising surface of the drain pan 12 so as to correspond to the square hole 11 of the cut and raised piece 9; 16 is a mounting piece provided on the front side of the drain pan 12 corresponding to the bent portion 2a of both side plates 2; This is a mounting plate that is mounted upright on the inner bottom surface of the drain pan 12, and is formed to have a width equal to or greater than the width of the frame 1. Therefore, the drain pan 12 is attached to the frame 1.
When mounting on the bottom surface, cut and bend the mounting piece 15 and insert it into the square hole 11 of the piece 9, the rear end of the drain pan 12 will be located in the notch space 10, and the mounting plate 1
6 and the bent portions 2a of both side plates 2 are overlapped at a predetermined position and fixed with the pin screws 17, the drain pan 12 is completed.
The bent portions 2d of the side plates 2 abut on the inner bottom surface of the support plate 6, and both ends of the support plate 6 abut on the inner bottom surface of the drain pan 12 and the blower stand 8, respectively, to prevent ventilation from bypassing. Reference numeral 18 denotes an upper casing fixed at the upper part of the front side of the frame 1 along the bent portion 3a of the upper plate 4, and is formed to be larger in width than the drain pan 12. Reference numeral 19 denotes a lower casing at the lower front side of the frame 1, with one end fixed to the mounting plate 16 and the other end fixed to the bent portion 2d of both side plates 2. The lower casing 19 is formed to have the same width as the upper casing, and is located at the lower front side of the drain pan 12. and covers the lower surface. Reference numeral 20 denotes an air outlet grill installed between the step portions 21 and 22 of the upper and lower casings 18 and 19, and the air outlet grill located on the right side in FIG. 1 is formed in a blind shape. Reference numeral 23 denotes a water-tight heat insulating cushion that is inserted between the stepped portion 22 of the lower casing 19 and the lower end of the outlet grille 20, and the elastic force of this insulating cushion allows the upper end of the outlet grille 20 to be connected to the step of the upper casing 18. It is brought into close contact with the portion 21. 24 is drain pan 12
A heat insulating material inserted between the horizontal surface 13 of the
Preventing heat conduction from the side to the lower casing 19 side,
This prevents dew condensation on the lower casing 19. 25
26 is a heat insulating material formed between the upper and lower casings 18 and 19 and installed in the air passage leading from the heat exchanger room A to the blowout grille 20; 26 is a lower panel that covers the lower surface of the frame 1 on the side of the blower room B; It has a suction grill 27. Reference numerals 28 and 29 indicate spacers 30 of two sizes, large and small, which are detachably attached to the rear of the frame 1 and project outward from both side plates 2.
are double-sided casings that are fixed by being hung over both ends of the upper and lower casings 18 and 19 and the ends of the spacers 28 and 29, and a piping space 31 and an electrical component space 32 are formed between the both-side casings 30 and the both side plates 2. ing. For example, when installing an air conditioner with right piping, the large spacer 28 is placed on the right side and the small spacer 29 is placed on the right side as shown in Figure 1.
If the upper and lower casings 18 and 19 are mounted on the left side and shifted to the right side, a large piping space 31 is formed on the right side and a small electrical component space 32 is formed on the left side. The air conditioner configured in this manner is suspended from the ceiling via the through holes 4 of the frame 1 and suspension bolts (not shown), and indoor air is drawn from the suction grill 27 by the operation of the blower 7. The air is sucked in, exchanges heat with the cold water flowing inside in the heat exchanger 5, and is blown out from the outlet grille 20 as cold air. The cold air from the heat exchanger 5 is guided to the heat exchanger 5 without bypassing the heat exchanger 5, and the cold air from the heat exchanger 5 is prevented from leaking to the outside by the support plate 6, the bottom surface of the drain pan 12, and the mounting plate 16. The user is guided to the blowout grill 20, and the room is cooled. At this time, the blowout grill 20
A part of the cold air blown out from the outlet generates turbulence especially near the lower end of the outlet grille 20 and directly contacts the lower casings 18 and 19, causing dew condensation.
In this device, there is a distance between the blow-off grille 20 and the lower casing 19 by the height of the heat-insulating cushion 23, so that the cold air does not come into direct contact with the lower casing 19. In addition, the insulation cushion 23
Heat conduction from the outlet grille 20 to the lower casing 19 is prevented by the heat insulating action of the heat insulating material 2.
4 from the drain pan 12 to the lower casing 19
Since heat conduction to the lower casing 19 is prevented, dew condensation does not occur on the lower casing 19. In addition, the drain pan 12 accommodates the dew water that has flowed down from the heat exchanger 12, and as the weight increases, the drain pan 12 tends to bend in the width direction, but the mounting plate 16 is fixed to the inner bottom surface of the drain pan 12 in the width direction. Since the mounting plate 16 also serves as a reinforcement and closes the lower part of the frame 1, dew water in the drain pan 12 is not blown away outside the drain pan 12 by cold air.

As described above, in this invention, when installing the outlet grille between the stepped parts of the upper and lower casings, a heat insulating cushion is inserted between the stepped part of the lower casing and the outlet grille, and the lower end surface of the outlet grille is pressed.
Since the outlet grille is closely held between the upper casing and the upper casing, cold air does not leak from the periphery of the outlet grille, and there is a distance between the lower end of the outlet grille and the lower casing equal to the distance of the insulation cushion.
Cold air does not directly hit the lower casing.
Furthermore, heat conduction from the outlet grille to the lower casing is prevented by the insulating cushion. Since a heat insulating material is interposed between the lower surface of the step of the lower casing and the horizontal surface of the edge of the drain pan, heat conduction from the drain pan to the lower casing is also prevented. Therefore, the action of the heat insulating cushion and the heat insulating material can completely prevent dew condensation on the lower casing. Furthermore, the stepped portion of the lower casing is supported by the horizontal surface of the drain pan, which also has the effect of reinforcing the lower casing.

[Brief explanation of the drawing]

The figures show one embodiment of this invention, with Fig. 1 being a perspective view of a ceiling-suspended air conditioner, Fig. 2 being a vertical sectional view, Fig. 3 being a perspective view of the frame, and Fig. 4 being a drain pan. FIG. 5 is a sectional view taken along the line -V in FIG. 4. In addition, in the figures, the same reference numerals indicate the same or corresponding parts. In the figure, 1 is the frame, 2 is the side plate, 3 is the top plate, 4
is a through hole, 5 is a heat exchanger, 6 is a support plate, 7 is a blower, 8 is a blower stand, 9 is a cut and raised piece, 10 is a cutout space, 11 is a square hole, 12 is a drain pan, 13 is a horizontal surface , 14 is a discharge port, 15 is a mounting piece, 16 is a mounting plate, 17 is a tuft pin screw, 18 is an upper casing,
19 is the lower casing, 20 is the blowout grill, 2
1 and 22 are stepped portions, 23 is a heat insulating cushion, and 23a
is a groove, 24 and 25 are insulation materials, 26 is a bottom panel,
27 is a suction grill, A is a heat exchanger room, and B is a blower room.

Claims (1)

[Scope of utility model registration request] An inverted U-shaped frame consisting of both side plates and a top plate.
A heat exchanger housed in the frame, an air blower for ventilating the heat exchanger, a drain pan attached to the lower part of the frame to catch dew water generated in the heat exchanger, an upper front part of the frame, an upper casing and a lower casing that are installed to cover the lower part and have stepped portions facing each other; a blow-off grill that is installed between the stepped portions of the upper and lower casings and blows the cold air sent out from the heat exchanger into the room; provided between the stepped portion of the lower casing and the lower end surface of the outlet grill;
A heat insulating cushion presses the lower end surface of the outlet grille to sandwich the outlet grille between the step part of the upper casing, and the edge of the drain pan is provided with a horizontal surface corresponding to the step part of the lower casing. An air conditioner characterized in that a heat insulating material is interposed between the horizontal surface and the lower surface of the step of the lower casing.