JPS63290337A - Air conditioner - Google Patents

Abstract

PURPOSE:To keep electrical parts at a temperature lower than a desired temperature, improve reliability of an air conditioner and extend its life as well as to facilitate inspection and replacement of the electrical parts by a method wherein a heat radiator is arranged within an air feeding passage, a horizontal part of the heat radiator is arranged between the heat radiator and a vertical wall of a building and the electrical parts generating heat are fixed below the horizontal part. CONSTITUTION:A main body 1 of an outdoor unit is hung at the veranda 6 and a lower outer box 10 is fixed to a main body 4 of an outer box by screws 9. A heat radiating part 16a of a heat radiating plate 16 is passed through a hole formed in a fan casing 11 and projected into an air passage 15. A heat radiating plate 16 is provided with a horizontal part 16b between the heat radiating part 16a and a vertical wall 18 of a building. A power transistor 19 is fixed by a screw 20 below the horizontal part 16b. Air passed through a condensor 12 is also passed through the heat radiating part 16a of the thermal radiating plate 16 to cool the entire heat radiating plate 16 and the power transistor 19 fixed is also cooled by the air. The screws 9 are removed and the lower outer box 10 only is removed, resulting in that an inspection of the power transistor 19 can be performed and in addition the fixing screw 20 for the power transistor 19 is merely removed to enable the parts to be replaced.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an air conditioner having electrical components that generate heat.

2. Description of the Related Art Conventionally, the structure of this type of air conditioner is as shown in FIG.
4 is fixed to the fan case 103 with screws 105 or the like, and the electrical component 107 that generates heat is fixed horizontally from the wall 10B side with screws 106 or the like to the vertical surface of the heat sink 104.

Problems to be Solved by the Invention However, with the above configuration, the main body is suspended and fixed at the bottom of a balcony or balcony, and if the electrical equipment that generates heat breaks down or maintenance is required. In order to do so, it was necessary to remove the main unit from the balcony or balcony and disassemble the main unit.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a heat dissipation section inside the air duct, and a horizontal section of a heat dissipation plate is provided between the heat dissipation section and the vertical wall of the building. Electrical components that generate heat are fixed to the lower part of the horizontal section.

By providing a heat dissipation section inside the air duct, the air passing through the condensing mold hits the heat dissipation section and the entire heat dissipation plate is sufficiently cooled. Electrical components that generate heat can also be sufficiently cooled through heat transfer, which improves the characteristics of the components. can be maintained.

In addition, by fixing the electrical components that generate heat to the lower part of the horizontal part of the radiator installed between the heat radiator and the vertical wall of the building, inspection can be performed from the bottom of the main unit by removing only the lower part of the outer box of the main unit. This also makes it possible to replace the electrical components.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 3.

In the figure, 1 is the outdoor main body, and 2 is the indoor main body. The outdoor main body 1 has an outer box main body 4 fixed to a substrate 3 forming the main body of the outdoor main body 1.

The outdoor main body 1 is suspended on a balcony 6 by fixing an outdoor main body hanging fitting 5 fixed to an outer box main body 4 and an anchor bolt 7 buried in the balcony 6 with a nut 8.

A lower outer box 10 is fixed to the outer box main body 4 by screws 9, and the outer box main body 4 is provided with a suction opening 4a and a blowout opening 4b.

A fan case 11 that forms the main body of the air passage is fixed to the board 3, and a condenser 12 and a stabilizer 13 are fixed to the fan case 11, and a condenser fit fan 14 (cross flow fan) is supported. , forming a ventilation path 15.

Further, a heat sink 16 made of aluminum, which is a good thermal conductor, is fixed to the fan case 11 with screws 17.

The heat sink 16 includes a heat sink 16 consisting of several plate-shaped fins.
a is provided, passes through a hole provided in the fan case 11, and projects into the air passage.

In addition, the heat radiator 16 has a heat radiating part 16a and a vertical wall 18 of the building.
A horizontal portion TAB is provided between the two.

A power transistor 19, which is an electric component that generates heat, is screwed to the lower part of the horizontal portion 16b of the heat sink 16 with screws 20 from the bottom to the top.

Next, the operation when the air conditioner having the above configuration is operated will be explained.

When electricity is applied to the air conditioner main body, the power transistor 19 begins to generate heat. Also, the condenser fan 14 starts operating. As a result, the suction opening 4 provided in the outer box body 4
Air is sucked in from a, passes through the condenser 12, passes through the condenser blower fan 14, and is blown out from the blow-off opening 4b.

The wind that has passed through the condenser 12 also passes through the heat sink 16 of the heat sink 16, so the entire heat sink 16 is cooled and the heat sink 1
The power transistor 19, which is fixed at 6, is also cooled.

Next, in one embodiment of the present invention, the power transistor 19
This section explains when to inspect and replace.

When inspecting the power transistor 19, since the power transistor 19 is attached to the lower part of the horizontal part 16b provided between the heat radiation part tea of the heat radiation plate 16 and the vertical wall 18 of the building, remove the screw 9, The power transistor 19 can be inspected simply by removing the lower outer box 10.

In addition, since the power transistor 19 is fixed to the lower part of the horizontal part tab of the heat sink 16 with screws 20 from below to above, it is only necessary to remove the lower outer box 10 and remove the power transistor 19 identification screws 20. Parts can be easily replaced.

Effects of the Invention As described above, the present invention provides a heat dissipating part of a heat sink inside the air duct, and fixes heat-generating electrical components to the lower part of the heat radiating plate. As a result, heat-generating electrical components fixed to the heat sink are also efficiently cooled.

As a result, electrical components that generate heat are kept below a predetermined temperature,
Reliability and lifespan can be improved.

In addition, by fixing heat-generating electrical components to the lower part of the horizontal part provided between the heat radiating part and the vertical wall of the building, the outdoor main unit can be installed at the bottom of a balcony or balcony. Electrical components that generate heat can be inspected and replaced simply by removing a part of the outer box of the outdoor main body without removing them.

As a result, an air conditioner with good repairability can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of an air conditioner according to an embodiment of the present invention when it is installed, Fig. 2 is a side view showing the installed state of the air conditioner, and Fig. 3 is a perspective view of the main parts of the air conditioner. FIG. 4 is a longitudinal cross-sectional view of the main part of a conventional air conditioner. 3...base &, 6...balcony, 11.
...Fan case, 12 ...Condenser, 1
4... Condenser fan, 15... Air duct, 16... Heat radiation plate, 16a... Heat radiation part, 16b... Horizontal part , 19...Power transistor. Name of agent: Patent attorney Toshio Nakao and one other name
1 Figure 1 Ma 6-Ichishin U〉da Figure 2 16- Heat dissipation layer Figure 3 /gQ Figure 4

Claims (1)

[Claims] A compressor, a condenser, a capillary tube, and an evaporator are connected in a ring to form a refrigeration cycle, and an outdoor unit is provided with an air passage consisting of the condenser, a fan for the condenser, and a fan case on a substrate, installed at the lower part of the protrusion toward the outdoor side of the building, and further provided with a heat dissipation part of a heat dissipation plate inside the air duct,
An air conditioner in which a horizontal part of a heat radiating plate is provided between a heat radiating part and a vertical wall of a building, and electrical components that generate heat are arranged below the horizontal part.