JPH05240466A - Outdoor unit for air-conditioning machine - Google Patents

Abstract

PURPOSE:To permit the improvement of heat radiating property of a reactor for an inverter device for changing the number of rotations of a compressor. CONSTITUTION:A partitioning plate 16, partitioning a fan 14 from a compressor 15 in the outdoor unit of an air-conditioning machine, is provided with a reactor receiving chamber 17, communicating with the side of the compressor, at the lower part of the partitioning plate while a reactor 1 for an inverter device is installed in the receiving chamber of the reactor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor unit for an air conditioner having a reactor incorporated as an operation control device for a compressor in the air conditioner.

[0002]

2. Description of the Related Art Generally, an outdoor unit in an air conditioner is provided with an operation control device for variably controlling the rotation speed of a compressor.

Recently, an inverter device has been used as the operation control device.
The controller always keeps an appropriate room temperature during cooling and heating at a set temperature, which is associated with the start and stop of the compressor or changes in the room temperature.

That is, the operation control device for the compressor incorporated in the outdoor unit of the air conditioner is constructed as shown in the electric circuit diagram of FIG.

That is, reference numeral I is an AC power source, II is a control device, and III is an induction motor of a compressor. The control device II is a reactor-1, a control P.I. A current transformer 3, a noise filter 4, a rectifying circuit 5 using a rectifying diode, a smoothing capacitor 6, a Zener diode 7, an inverter 8 connected to the C plate 2, and a control circuit for the same.
Sdrive P. C plate 9 and control P.P. It is composed of a C plate 10 and the like. The inverter 8 is composed of main transistors 8a and feedback diodes 8b.

Therefore, the operation control device for the compressor described above uses the base drive P. The induction motor III is operated and controlled by the signal from the C plate 9 and the output frequency thereof is adjusted according to the changing indoor temperature, whereby the rotation speed of the induction motor III is continuously controlled to perform air conditioning. The temperature is controlled as a machine.

[0007]

However, in the above-described outdoor unit of the air conditioner, the electric components for operation control are generally arranged above the compressor. Therefore, when the inverter device is used as the operation control device, the reactor-1 itself is a heat-generating component because the reactor-1 is located above the compressor, and the compressor itself also generates heat. Stays above the compressor,
1 has a problem that the performance is deteriorated due to thermal influence.

The present invention has been made in view of the above circumstances, and it is noted that the reactor-1 is a component that is large and generates heat as compared with other electric components that constitute the operation control device of the compressor. Then, it aims at providing the outdoor unit of the air conditioner which solved the above-mentioned problem.

[0009]

According to the present invention, an outdoor heat exchanger, a compressor, and a blower are installed on a substrate, and a partition plate for partitioning the compressor and the blower is provided upright and provided below the partition plate. The reactor storage chamber is formed by a protective cover projecting from the compressor side into the blower passage of the blower, and this reactor storage chamber is communicated with the compressor side at the lower part of the partition plate, and in the reactor storage chamber. It is an outdoor unit of an air conditioner in which a reactor in an inverter device for controlling a compressor speed is installed.

[0010]

In the present invention, the reactor, which is a large heat generating component,
Is installed in the reactor-storage room under the partition plate,
Spares the electrical components that make up the outdoor unit of the air conditioner.
Can be efficiently stored in the outdoor unit. Further, since the reactor housing chamber communicates with the compressor side, the wiring for connecting the reactor and the inverter device can be performed inside the compressor chamber, and the wiring is not exposed to rain wind. Furthermore, the air heated by the reactor in the reactor-housing chamber does not flow into the compressor chamber, and the temperature inside the reactor-housing chamber does not rise abnormally.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an illustrated embodiment.

In the following description, the same reference numerals will be given to the same constituent members as those of the above-described specific example.

In FIG. 2, reference numeral 11 is an outdoor unit in an air conditioner, and a substantially L-shaped outdoor heat exchanger (condenser) 13 is installed on a substrate 12 of the outdoor unit 11, and this outdoor unit A fan 14 for heat dissipation is provided on the substrate 12 located inside the heat exchanger 13.

Further, a compressor 15 having a control device II incorporating the inverter 8 is fixed to one side of the substrate 12, and an arc shape is formed on the outside of the compressor 15. A partition plate 16 is erected so as to surround the compressor 15. As shown in FIG. 4, at the lower portion of the partition plate 16, one side outer peripheral portion of a box-shaped protective cover 17 made of synthetic resin and forming a reactor accommodating chamber is fitted to the inner peripheral edge portion of the notch 16a. It is fixed. That is, the protective cover 17 is in the shape of a box with one side open, and the flange portion formed at the open side edge is fitted into the inner peripheral edge of the cutout 16a of the partition plate 16, Most of the box-shaped protective cover 17 projects into the blower 14 side of the partition plate 16, that is, in the blow passage. A reactor-1 separated from the inverter device for controlling the speed of the compressor is provided in the protection cover 17.

The reactor accommodating chamber formed by the protective cover 17 communicates with the part accommodating the compressor 15 through the opening, that is, the notch 16a of the partition plate 16, and through this opening. The reactor-1 and an inverter device arranged at a different position are connected by connection wiring (not shown).

Further, both side walls 17 of the protective cover 17 are provided.
As shown in FIGS. 3 and 4, ventilation holes 18 and 19 having different heights are provided in a and 17b. Covering eaves 18a and 19a are provided.

However, during air conditioning by heating and cooling, the reactor-1 is forcibly cooled by the cool air from the fan 14 for radiating heat of the outdoor heat exchanger 13. That is, the protective cover 17 in which the reactor-1 is housed
Is installed so as to project into the air passage of the blower 14, the reactor-1 is cooled through the protective cover 17, and a part of the cold air from the blower 14 is protected from the one ventilation port 18 by the protective Java. It flows into -17 and forcibly cools the reactor-1 in this protective cover 17, and then is discharged to the outside through the other vent hole 19.

On the other hand, cold air also flows into the reactor housing chamber from the lower part of the compressor housing portion through the notch 6a, so that the reactor-1 is cooled more reliably and heated in the protective cover. Air flows into the compressor chamber, and hot air is prevented from accumulating inside the protective cover.

Although the protective cover is made of synthetic resin in the above embodiment, it may be made of metal. Further, when the protective cover is formed of synthetic resin as described above, it is possible to prevent the generation of abnormal noise due to the excitation vibration of the protective cover even if a leakage magnetic flux is generated by the reactor.

[0020]

As described above, according to the present invention, the protective cover is provided so as to protrude in the air passage having a space in terms of space, in which the speed control device of the compressor and other electric devices are provided. Reactor, which is a part that is larger and generates more heat than parts
Since the above-mentioned protection cover is provided in the protection cover, it is possible to efficiently store the electrical components that form the outdoor unit of the air conditioner in the outdoor unit, and the reactor can be installed through the protection cover in the air passage. Since it can be cooled and the inside of the protective cover where the reactor is installed is open to the compressor side, the connection wiring between the reactor and the inverter device can be done inside the compressor room, and The wiring is not exposed to, and the life can be extended.
Further, it is possible to prevent the air heated by the reactor in the reactor-accommodating chamber from flowing into the compressor chamber, and to prevent hot air from accumulating inside the reactor-accommodating chamber, so that the temperature rise in the reactor-accommodating chamber can be prevented more reliably. .

[Brief description of drawings]

FIG. 1 is an electric circuit diagram of an operation control device for a compressor incorporated in an air conditioner.

FIG. 2 is a plan view of the outdoor unit of the air conditioner of the present invention.

FIG. 3 is a perspective view of a reactor-accommodation chamber portion in the present invention.

FIG. 4 is a vertical sectional view of a reactor-accommodation chamber portion in the present invention.

[Explanation of symbols]

1 ... Reactor, 11 ... Outdoor unit, 12 ... Substrate, 1
3 ... Outdoor heat exchanger, 14 ... Blower, 15 ... Compressor, 16
... Partition plate, 17 ... Protective cover, 18, 19 ... Vent.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoetsu Sato, 336 Tatehara, Fuji City, Shizuoka Prefecture, Toshiba Corporation Fuji Factory (72) Inventor Shoji Suda, 336, Tatehara, Fuji City, Shizuoka Prefecture, Toshiba Corporation Fuji Factory (72) ) Inventor Takuichi Samejima 336 Tatehara, Fuji City, Shizuoka Prefecture Toshiba Corporation Fuji Factory

Claims (1)

[Claims] 1. An outdoor heat exchanger, a compressor, and a blower are installed on a substrate, and a partition plate for partitioning the compressor and the blower is provided upright, and is provided below the partition plate, and the compressor side is provided. From the protective cover protruding into the air passage of the blower
To form a reactor-accommodating chamber by means of which the reactor-accommodating chamber is connected to the compressor side at the lower part of the partition plate, and the reactor in the inverter device for controlling the compressor speed is installed in the reactor-accommodating chamber. The outdoor unit of the air conditioner characterized by the above.