JPH0672708B2 - Air conditioner outdoor unit - Google Patents

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Generally, an outdoor unit in an air conditioner has a speed control device such as an inverter for variably controlling the operating speed of the compressor. The proper room temperature during cooling / heating is maintained at the set temperature due to stoppage or fluctuation of the room temperature.

The compressor speed control device incorporated in the outdoor unit of the air conditioner is constructed as shown in the electric circuit diagram of FIG.

In FIG. 6, 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 the reactor 1, the control P.P. A current lance 3, a noise filter 4, a rectifying circuit 5 using a rectifying diode, a smoothing diode 6, a Zener diode 7, an inverter 8, and a base drive 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 various transistors 8a and a feedback diode 8b.

Therefore, the speed control device for the above-mentioned compressor is the same as 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, and the air conditioning is performed. It is designed to control the temperature of the machine.

Particularly, in the outdoor unit of the air conditioner, the speed control device of the compressor is housed above the compressor. The reactor 1 is also a component that is heavy, large, and generates heat as compared with other components that configure the speed control device of the compressor.

[0007]

However, in the outdoor unit of the air conditioner described above, since the reactor is located above the compressor, the reactor itself is a heat-generating component, and the compressor itself also generates heat. Therefore, the warm air stays above the compressor and the reactor is thermally affected, resulting in performance degradation. Further, since the speed control device of the compressor includes the reactor, the weight of the reactor is relatively heavy, so that it is necessary to support the reactor with a structural member having strong strength.

The present invention focuses on the fact that the reactor is a component that is heavier, larger, and generates heat as compared with the other components that constitute the control device for the compressor. The purpose is to provide a unit.

[0009]

The structure of the present invention has an outdoor heat exchanger, a compressor, and a blower installed on a substrate, and a partition plate is erected between the blower and the compressor. A protective cover is attached to the blower passage of the blower, and the reactor in the inverter device for controlling the speed of the compressor is installed on the substrate in the protective cover.

[0010]

[Function] During cooling and heating, the reactor is cooled through the protective cover protruding into the air passage so that performance is not deteriorated, and the reactor is installed on the substrate, which is a structural member having high strength. There is no need for a separate specialized support member.

[0011]

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

As shown in FIGS. 1 to 3, the reactor 1 incorporated in the operation control device is housed in a protective cover 17 attached to a part of the partition plate. That is,
The substrate 12 in the outdoor unit 11 in the air conditioner is provided with an outdoor heat exchanger 13 having a substantially L shape, and the substrate 12 inside the outdoor heat exchanger 13 is located on the outer ring.
A fan 14 for radiating heat is arranged in the. Further, a compressor 15 is installed on one side of the substrate 12, and an outer partition of the compressor 15 has an arc-shaped partition plate 1 for the compressor.
6 is installed upright so as to surround the compressor 15.

Further, a protective cover 17 is formed on a part of the partition plate 16 so as to project outward and is integrally formed. Both side walls 17a and 17b of the protective cover 17 are formed.
Each of the vent holes 18 and 19 having different heights is provided on the upper side of the substrate 12. Both vents 1
Reference numerals 8 and 19 are composed of vent holes 18a and 19a and eaves portions 18b and 19b formed so as to cover the vent holes 18a and 19a.

Further, on the substrate 12 on which the protective cover 17 is located, the reactor 1 incorporated in the operation control device is installed.

Therefore, the reactor 1 is forcibly cooled by the cool air from the blower 14 for radiating heat of the outdoor heat exchanger 13 during air conditioning by cooling and heating. That is, since the protective cover 17 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 at the same time, some of the cool air from the blower 14 is discharged from one of the vent holes. It flows from 18 into the protective cover 17, and the reactor 1 in the protective cover 17 is forcibly cooled, and then discharged through the other vent hole 19 to the outside of the machine.

In this way, the reactor 1 is cooled and placed on the substrate 12.

It should be noted that the reactor 1 is also a component that is heavier, larger, and generates heat as compared with other components that constitute the control device of the compressor 15. For this reason, in terms of cooling and space, the reactor 1 is provided so as to project into the air passage having a space and has a cooling effect, and the inside of the air passage is protected through the protective cover 17 from the viewpoint of strength and avoiding rainwater. It is installed on the substrate 12. Further, since the outdoor heat exchanger 13, the compressor 15 and the blower 14 are installed on the substrate 12, the substrate 12 is a structural member having a strong strength. Since the reactor 1 is installed on the substrate 12, which is a structural member that is strong in strength, the reactor 1 is installed without requiring a strong dedicated structural member to install the reactor 1 as in the conventional case. It is possible to deal with a fall and the like.

Next, the embodiment shown in FIGS. 4 and 5 is another embodiment of the present invention, which is a partition plate 16.
A protective cover 17 'made of a synthetic resin material is inserted and fixed in a notch formed in a part of the above, whereby the resonance action due to the excitation vibration of the reactor 1 can be prevented. Is.

[0019]

As described above, the present invention focuses on the fact that the reactor is a heavy, large, and heat-generating component as compared with the other components constituting the operation control device of the compressor, and has the following effects. . Since the protective cover is provided so as to project in the air passage having a large space, it is possible to efficiently store the components of the outdoor unit in the outdoor unit in terms of space. Further, since the reactor is installed in the protective cover of the air passage, it is possible to cool the reactor through the protective cover and protect the reactor from rainwater and the like. Furthermore, since the reactor is installed on the substrate, which is a structurally strong structural member that has an outdoor heat exchanger, a compressor, and a blower installed, it is possible to require a strong dedicated structural member to install the reactor as in the past. Without it, a reactor can be installed and it is possible to handle drops and the like.
Further, by using the protective cover made of synthetic resin material, resonance due to the magnetic field generated when current flows through the reactor can be prevented, and noise can be prevented.

[Brief description of drawings]

FIG. 1 is a plan view of an outdoor unit of an air conditioner of the present invention.

FIG. 2 is a perspective view of FIG.

3 is an enlarged cross-sectional view taken along the chain line AA of FIG.

FIG. 4 is a diagram showing another embodiment of the present invention.

FIG. 5 is a vertical sectional view of another embodiment of the present invention.

FIG. 6 is an electric circuit diagram of a control device for a compressor incorporated in an air conditioner.

[Explanation of symbols]

 1 Reactor 11 Outdoor Unit 12 Substrate 13 Outdoor Heat Exchanger 14 Blower 15 Compressor 16 Partition Plate 17 Protective Cover 18, 19 Vent

Front Page Continuation (72) Inventor Hiroshi Sato 336 Tatehara, Fuji City, Shizuoka Prefecture, 336 Toshihara, Fuji Factory Co., Ltd. ) Inventor Takuichi Samejima 336 Tatehara, Fuji City, Shizuoka Prefecture Toshiba Corporation Fuji factory

Claims (2)

[Claims] 1. An outdoor heat exchanger, a compressor, and a blower are installed on a substrate, a partition plate of the compressor is erected in the vicinity of the blower, and the partition plate is protected so as to project into a blow passage of the blower. An outdoor unit for an air conditioner, wherein a cover is attached, and a reactor in an inverter device for speed control of the compressor is installed on the substrate in the protective cover. 2. The outdoor unit for an air conditioner according to claim 1, wherein the protective cover is made of a synthetic resin material.