JPH0452582Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to an air conditioner embedded in an indoor wall, such as a ceiling.

(B) Prior Art An example of the structure of an air conditioner embedded in the ceiling is disclosed in Japanese Utility Model Publication No. 62-12170.

The air conditioner disclosed in this publication has a body that is embedded in the ceiling and has a substantially rectangular parallelepiped shape. The machine is then inserted through an opening in the ceiling and fixed with hanging bolts in the ceiling.

(c) Problems to be solved by the invention Since the body of such an air conditioner has a substantially rectangular parallelepiped shape, for example, if a heater for preventing dew is placed on the outside of the body, this problem may occur. As the external dimensions of the aircraft body become larger, the size of the opening provided in the ceiling must also become larger.

In view of this point, the present invention aims to provide an air conditioner that solves this problem.

(d) Means for solving the problem In order to achieve this objective, the present invention forms a fuselage so that its cross section is approximately trapezoidal, and the short side of this fuselage is placed under the ceiling and the long side is placed under the ceiling. This machine is installed on the ceiling so as to be positioned toward the opening, and a heater for preventing dew exposure is arranged on the trapezoidal inclined surface.

(E) Effect By disposing the heater for preventing dew on the inclined surface forming the side of the fuselage, this heater is housed within the width of the long side of the fuselage, which has a substantially trapezoidal cross section.

(F) Embodiment In Fig. 1, 1 is the body of an air conditioner embedded in the ceiling, with an outer panel 2 bent so that the opening is located downward, and a bent part 3 of this outer panel.
Two cross-flow fans 4 and 5 arranged along the same line, and two plate-fin type heat exchangers 6 and 7 arranged between the two fans and combined in a substantially V-shape are built in.

In this outer panel 2, the width dimension a of the back side 50 is the front side 51
The side plate 28 is inclined to have a substantially trapezoidal cross-sectional shape so as to be smaller than the width b. Both heat exchangers 6 and 7 are integrated with a cooler and a hot water coil, and during cooling, the refrigerant flows through the refrigerant pipes 8 provided on both the left and right sides of the heat exchanger as shown by solid arrows, and during heating, the refrigerant flows through the refrigerant pipes 8 installed in the center. Hot water is made to flow through the hot water pipe 9 as shown by the dashed arrow. 10 is a drain pan disposed below both heat exchangers, 11
is a decorative panel that closes the opening of the outer panel 2, and has a suction grille 12 in the center and elongated air outlets 13 and 14 formed on both sides of the suction grille, respectively. The suction grill faces the space 15 between the two heat exchangers 6 and 7, and the air outlets 13 and 14 are connected to the air passage 16 in the outer panel 2. Reference numeral 17 is a first wind guide plate disposed along the longitudinal direction of one of the air outlets 13, and is supported so as to be movable by hand in any direction. Reference numeral 18 denotes a second wind guide plate disposed along the lateral direction of one of the air outlets 13, and a large number of these wind guide plates are provided in the longitudinal direction.

Reference numeral 19 denotes a louver disposed in the longitudinal direction of the other outlet 14, and a notch 21 is provided in the center of the upper piece 20 of this louver, into which the eccentric shaft 23 of the electric motor 22 is inserted. ing. When the eccentric shaft 23 rotates due to the rotation of the electric motor 22, the louver 19 swings about the fulcrum 24 as shown by a chain line.

The outer panel 2 is equipped with a heat insulating material and a heater as shown in FIG. 25 is a reinforcing metal fitting attached to the upper surface 26 of the outer panel 2, and 27 is a heat diffusion sheet, which is pasted along the upper surface 26 of the outer panel 2 and the inclined side panels 28. This heat diffusion sheet 27 has three elongated holes 29, and reinforcing metal fittings 25 are fitted into each of the elongated holes 29. 30
is a heater for preventing dew formation arranged on the heat diffusion sheet 27, and is energized only during cooling operation. This heater is branched into two, and one heater 31 is connected to the curved part 32 of one inclined surface 32 of the heat diffusion sheet 27.
3 in the longitudinal direction of this bent portion 33,
It extends to the left side along the flat surface 35 of the heat diffusion sheet 27 at the end portion 34, is then bent into a U-shape and returns to the right side, and at the right end portion 36 extends along the flat surface 37 of the inclined surface 32 of the heat diffusion sheet 27. It extends in the longitudinal direction of the flat portion 37. Further, the other heater 38 extends from the branch point 39 to the left side, and then the heat diffusion sheet 2
7, this inclined surface 40
It is bent in a U-shape in the longitudinal direction. 41
is an aluminum sheet that covers the heaters 31 and 38 arranged on the inclined surfaces 32 and 40 in this way.
This aluminum sheet 41 disperses the heat of 0 and makes it easier to transfer it to the heat diffusion sheet 27 described above. 42
is a heat insulating sheet which has approximately the same area as the heat diffusion sheet 27 and covers this heat diffusion sheet 27 to make it difficult for the heat of the heater 30 to escape to the outside.A reinforcing metal fitting 25 is also fitted to this heat insulating sheet 42. Three elongated holes 43 are provided for insertion. FIG. 1 is a sectional view showing a state in which the heat diffusion sheet 27, heater 30, aluminum sheet 41, and heat insulating sheet 42 are bonded to the outer surface of the outer panel 2 in this manner.

When installing the air conditioner body 1 configured in this way on the ceiling 43, an opening 44 having a size corresponding to the width dimension 6 of the front side 51 of the outer panel 2 is provided in the ceiling 43, and a heat exchanger 67 is installed in the ceiling 43. and cross flow fan 4,5
is inserted into the opening 44 of the ceiling 43, and then this outer panel 2 is inserted into the opening 44 of the ceiling 43.
The upper plate 26 is supported by hanging bolts in the ceiling. Since the outer panel 2 has a substantially trapezoidal cross-sectional shape, the outer panel 2 can be easily inserted into the approximate center of the opening 44 of the ceiling 43 while being guided by the inclined surface of the heat insulating sheet 42. Even if the edge of the opening 44 of the ceiling 43 hits the inclined surface during insertion, there is little risk of the heater 30 being scratched because it is covered with the heat insulating sheet 42. After the outer panel 2 is embedded in the ceiling 43 in this manner, the opening of the outer panel 2 is closed with the decorative panel 11.

In the air conditioner body 1 installed in this manner, when the cross flow fans 4, 5 and the electric motor 22 are operated, indoor air is sucked in through the intake grille 12 of the decorative panel 11, and is sucked into the heat exchangers 6, 7. The temperature is controlled and the gas flows along the inner surface 45 of the outer panel 2 and is discharged from the two outlets 13 and 14 (see solid line arrows in FIG. 1). In particular, during cooling operation, the outer panel 2 is
may cool down and cause dew formation. Therefore, by energizing the heater 30, the temperature near the side plate 28 of the outer plate 2 is maintained at around 20° C., thereby making it difficult for dew formation to occur.

(g) Effects of the invention As described above, the present invention tilts the side plate of the air conditioner body, makes the width on the back side of the body smaller than the width on the front side, and then Since the heater for preventing dew is disposed on the side, there is little possibility that the installation space of the machine body will increase due to the arrangement of the heater, and the size of the installation space can be kept small.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal sectional view of an air conditioner, and FIG. 2 is an exploded perspective view showing the relationship between the outer panel and the heat insulating sheet of this air conditioner. 1... fuselage, 28... side plate of the fuselage, 30... heater, 50... back side, 51... front side.

Claims (1)

[Scope of utility model registration request] In an air conditioner whose body is embedded in the wall of a room, this body has a shape in which the side plates are inclined so that the width on the back side is smaller than the width on the front side, and the inside surface of the side part is used to direct cool air. An air conditioner characterized in that the side plate has a guide wall and a heater for preventing dew formation is provided on the outer surface of the side plate.