JPS6138030Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a drain pan device for a ceiling-suspended air conditioner, and is particularly aimed at facilitating attachment and detachment of the drain pan and making the air conditioner thinner.

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 at the lower end side bent portions 2d of the both side plates 2. is inclined upward from approximately the center toward the front side of the frame 1, and a through hole 4 is provided at the overlapping portion on the upper surface side for inserting and fixing a suspension bolt (not shown) to the ceiling. It is being 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. 9 is heat exchanger room A
It is a cut-and-raised piece cut and raised outward in a trapezoidal shape at approximately the center of the side and rear side plates, that is, the both side plates 2,
By this cutting and raising, a cutout space 10 equivalent to the cutout and raised piece 9 is formed in both side plates 2, and a square hole 11 is bored at a predetermined height position of the cut and raised piece 9. ing. 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 Also, this drain pan 12
The front end of the drain pan 12 rises substantially perpendicularly from the bottom surface of the drain pan 12, and has a horizontal surface 13 formed by bending its edge horizontally. and drain pan 1
2 rises along the slope of the trapezoidal notch 10 at the rear end thereof, and has a discharge port 14 at the lower part of the rising surface, forming a dish-like shape as a whole.
15 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, when attaching the drain pan 12 to the lower surface of the frame 1, by inserting the mounting piece 15 into the square hole 11 of the cut-and-raised piece 9, the rear end of the drain pan 12 will be located within the cutout space 10. and 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 an L-shaped heat insulating cushion that is inserted between the step portion 22 of the lower casing 19 and the lower end of the outlet grille 20 and has a groove 23a for receiving dew water flowing down from the outlet grille 20. The upper end of the outlet grille 20 is brought into close contact with the stepped portion 21 of the upper casing 18 by force. 24 is a heat insulating material inserted between the horizontal surface 13 of the drain pan 12 and the lower surface of the stepped portion 22 of the lower casing 19, which prevents heat conduction from the outlet grille 20 side to the lower casing 19 side, and prevents heat conduction to the lower casing 19. Prevents condensation. 25 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 outlet grille 20; 26 is a lower panel that covers the lower surface of the frame 1 on the side of the blower room B; , has a suction grill 27. 28 and 29 are frame 1
2 types of reinforcing spacers, large and small, are removably attached to the outside of both side plates 2 at the rear of the panel. This is a casing on both sides, and this casing on both sides 3
Piping space 31 and electrical appliance space 32 are formed between 0 and both side plates 2. For example, when installing an air conditioner with right piping, as shown in Fig. 1, install the large spacer 28 on the right side and the small spacer 29 on the left side, and also shift the upper and lower casings 18 and 19 to the right side. When installed, a large piping space 31 will be formed on the right side and a small electrical appliance space 32 will be 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 intake 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 directed to the support plate 6, the bottom surface of the drain pan 12, and the mounting plate 16.
Air outlet grill 2 without leaking to the outside due to
0 to cool the room. At this time, the outlet grille 20 is cooled by the cold air, and dew condensation occurs on the outlet grille 20. The dew water flowing down from the outlet grille 20 reaches the lower part of the outlet grille 20; Since it is rounded, dew water flows around the lower end of the outlet grille 20 and flows down into the groove 23a of the heat insulating cushion 23.

Since the dew water contained in the groove 23a is small in quantity, it evaporates naturally when the air conditioner is stopped due to thermo-operation or the like. Further, normally, a portion of the cold air blown out from the outlet grille 20 generates turbulent flow near the lower end of the outlet grille 20 and comes into direct contact with the lower casings 18 and 19, causing dew condensation. Since there is a distance between the blow-off grille 20 and the lower casing 19 by the height of the heat-insulating cushion 23, the cold air does not come into direct contact with the lower casing 19. In addition, heat conduction from the outlet grille 20 to the lower casing 19 is prevented by the heat insulating action of the heat insulating cushion 23, and the heat insulating material 24
This prevents heat conduction from the drain pan 12 to the lower casing 19 and prevents dew condensation on the lower casing 19. In addition, the drain pan 12 accommodates 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 device, cut-and-raised pieces are formed at predetermined positions on both side plates of the frame, with holes at a predetermined height, and the mounting piece on one side of the drain pan is inserted into the hole, and the mounting plate on the other side of the drain pan, which is formed to be equal to or larger than the frame width from the bottom surface of the drain pan, is screwed to the end of both side plates of the frame, so that one side of the drain pan is accommodated in the cut-and-raised space. Therefore, the height of the air conditioner is reduced by the amount accommodated in the cut-and-raised space, and the air conditioner can be made thinner. In addition, since one side of the drain pan is supported by the cut-and-raised piece formed by processing to form the cut-and-raised space, there is no need to provide a separate support member, and the structure is simple. In addition, the drain pan can be fixed to the frame by simply inserting one side of the drain pan into the hole of the cut-and-raised piece and screwing the other side of the drain pan to the frame, and the operation is also simple. Furthermore, the mounting plate attached to the inner bottom surface of the drain pan closes the lower part of the frame, preventing dew from splashing outside the frame, and this mounting plate also acts as a reinforcement so that the drain pan will not sag even if dew water is contained inside the drain pan and its weight increases.

[Brief explanation of the drawing]

Each figure shows one embodiment of this invention.
The figure is a perspective view of a ceiling-suspended air conditioner, Figure 2 is a vertical sectional view, Figure 3 is a perspective view of the frame, Figure 4 is a plan view of the drain pan, and Figure 5 is a cross-section taken along the - line in Figure 4. It is a diagram. Note that the same reference numerals in the figures 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 tap screw, 18 is an upper casing, 1
9 is the lower casing, 20 is the blowout grill, 21,
22 is a stepped portion, 23 is a heat insulating cushion, 23a is a groove, 24 and 25 are heat insulating materials, 26 is a lower panel, 2
7 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 of a predetermined width consisting of side plates and a top plate, a partition plate that partitions the inside of the frame into a heat exchanger room and a blower room, a heat exchanger housed in the heat exchanger room, and a heat exchanger housed in the blower room. A blower that is housed and blows air to the heat exchanger, and is installed on the lower surface of the frame on the side of the heat exchanger room to receive dew water generated on the heat exchanger and both side plates of the frame, and is larger than the width of the frame. a drain pan of a width, a cut-and-raised piece cut outward at a predetermined position on both side plates of the frame and having a through hole at a predetermined height position;
A mounting piece is provided on one side of the drain pan to correspond to the through hole of the cut and raised piece, and a mounting piece is provided on the other side of the drain pan to correspond to the ends of both side plates of the frame and attached to the bottom inner surface of the drain pan. , and a mounting plate formed with a width equal to or greater than the width of the frame,
After inserting the mounting piece of the drain pan into the through hole of the cut-and-raised piece, screw members are provided to fix the mounting plate to the ends of both side plates of the frame, and when the drain pan is attached to the frame, the A ceiling-suspended air conditioner characterized in that one side portion of the drain pan is accommodated in a notch space formed by cutting and raising, and a lower part of the frame is closed by the mounting plate.