JP2000283504A - Outdoor machine of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate assembly of an outdoor machine by a method wherein a reactor is incorporated in an electrical equipment box without reducing the radiation effect of a reactor. SOLUTION: A reactor mounting surface extending in an L-shape in cross section is situated on one side of a heat sink 13 having a radiation fin 13a. A reactor 16 is mounted on a reactor mounting surface and contained on one side of the internal part of an electric accessory body 12. The radiation fin 13a is exposed to a heat-exchange chamber provided with a blower.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor unit of an air conditioner, and more particularly, to a reactor mounting structure for improving a power factor during frequency conversion.

[0002]

2. Description of the Related Art The main body of an outdoor unit of an air conditioner is shown in FIG.
The outer body is composed of a front cover 2, a side plate 3 formed in a U-shape, an upper cover 4, and the like. It is divided into a heat exchange chamber 6 and a machine room 7, in which an outdoor heat exchanger 8 and a blower 9 for sending out the air heat exchanged by the outdoor heat exchanger 8 are arranged. The compressor 10 is arranged in the lower part of the machine room 7, and the electrical component box 32 which accommodates electrical components for control and the like and covers the lid 31 is arranged in the upper portion (position indicated by a broken line). Further, a reactor 1 for improving the power factor at the time of frequency conversion when the compressor 10 is operated.
Reference numeral 6 is attached to the partition plate 5 which is larger in external dimensions than other electrical components and is also a heat-generating component, so that heat can be easily dissipated.

FIG. 7 shows a schematic structure of a conventional electric component box and electric components housed therein.
And a support 33 accommodated therein, a heat sink 34 to which a plurality of heat-generating components 14 and 15 such as a power module are attached, a printed wiring board 35, and the lid 31 described above. An opening 3 corresponding to the radiation fin 34 a of the heat sink 34 is provided on one side of the bottom surface of the support 33.
2a and 33a are provided, and the other side of the support 33 is also opened at the bottom surface, and a plurality of support portions 33b for supporting the peripheral portion of the printed wiring board 35 are provided around the support 33.
The heat generating components 14 and 15 such as power modules are attached to the heat sink 34 having a plurality of radiating fins 34a for generating high heat, and the radiating fins 34a are heat-exchanged as shown in FIG. The chamber 6 is exposed.

[0004]

By the way, the reactor 1
Since 9 is larger in shape than other electrical components and is also a heat-generating component, it is not conventionally housed in the electrical component box 21 and is attached to the partition plate 5 as shown in FIG. Or it was attached to the base 1, but with this, the lead wire became long, and the installation was troublesome and lacked workability.
In addition, there are problems such as disassembling at the time of recycling and extra time for sorting. Accordingly, an object of the present invention is to provide an outdoor unit of an air conditioner that is integrated into an electrical component box and has improved workability in assembling.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and the inside of a main body comprising a base and an outer trunk is partitioned into a heat exchange chamber and a machine room by a partition plate.
An electric device in which an outdoor heat exchanger and a blower for releasing heat-exchanged air to the outside are provided in the heat exchange chamber, while a compressor is disposed in a lower portion of the machine room, and an electric component for control is stored in an upper portion. A reactor box which is provided with a product box, and is located outside the upper side of the electrical component box, and the lower radiating fin is extended in an L-shaped cross section to one side of the heat sink exposed to the heat exchange chamber. A surface is provided, a reactor is mounted on the reactor mounting surface and housed in one side of the electrical component box, and one of the supports for supporting the outer peripheral portion of the printed wiring board is placed on the upper surface of the heat sink, and the other is mounted on the other side. Is supported by a plurality of support portions provided on the side wall of the electrical component box, and a cover is placed on the upper portion.

Further, the support for the printed wiring board is formed so as to be divided into right and left. In addition, a locking portion for restricting the movement of the heat sink is provided on the bottom surface of the electrical component box. Further, one of the mounting portions provided on the left and right of the lower part of the reactor is mounted on a reactor mounting surface of the heat sink, and the other is mounted on a mounting surface protruding from a bottom surface of the electrical component box. Further, a plurality of heat-generating components can be mounted between the front and rear surfaces of the heat sink. Further, a heat-generating component can be attached to both the upper surface and the vertical surface of the heat sink.

[0007]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG. FIG. 1 shows a schematic configuration of an outdoor unit of an air conditioner.
The outer body is composed of a front cover 2, a side plate 3 formed in a U-shape, an upper cover 4, and the like. 7, an outdoor heat exchanger 8 and a blower 9 for sending out the air heat-exchanged by the outdoor heat exchanger 8 to the outside are arranged in the heat exchange chamber 6. A compressor 10 is disposed at a lower portion, and an electric component box 12 (both made of a steel plate) that accommodates electric components for control and covers the lid 11 is disposed at an upper portion.

FIG. 2 shows the mounting state of the electrical component box 12 in the main body and the positional relationship of electrical components and the like disposed inside and outside the electrical component box 12. In FIG. A heat sink having fins 13a; 14, 15 heat-generating components such as power modules mounted on the upper surface of the heat sink 13; 16 a reactor also mounted on the heat sink 13 and housed inside one side of the electrical component box 12;
7 is a capacitor fixed inside the electrical component box 12, 18
Is a printed wiring board; 19 and 20 are supports for supporting the printed wiring board 18; 11 is a lid placed over the supports 19 and 20; one side of the electrical component box 12 is The other side is supported by a support plate 21 whose lower part is locked to the inner surface of the side plate 3, and the radiation fins 13 a of the heat sink 13 are exposed to the heat exchange chamber 6.

FIG. 3 shows the form of the electrical component box 12 and the like described above in more detail. The heat sink 13 is a reactor mounting surface 13b extending in an L-shaped cross section to one upper side provided with heat radiation fins 13a. The reactor 16 is mounted on the mounting surface 13b and housed in one side of the electrical component box 12, and its vertical surface (vertical wall) 13c is brought into contact with the side wall 12a of the electrical component box 12. A locking portion 12 provided at the center of the bottom surface of the electrical component box 12 with the tip of the reactor mounting surface 13b
b, the upper portion provided with the heat radiation fins 13a is projected outward from the upper portion of one side of the electrical component box 12, and the upper surface thereof supports the outer peripheral portion of the printed wiring board 18 on one side.
And another support 20 for supporting the outer peripheral portion on the other side.
Are supported by a plurality of support portions 12c provided on the side wall of the electrical component box 12, and the lid 11 is put on the upper portion.

The side wall 12a of the electrical component box 12 is formed lower than the other side walls so that the heat sink 13, the printed wiring board 18 and the like are held horizontally. In this embodiment, the support of the printed wiring board 18 is left and right (19, 2).
0), but is not limited to this, and may be integrally formed on the left and right sides.

FIG. 4 shows a second embodiment.
The feature is that one of the mounting portions 16a provided on the left and right of the lower portion of the reactor 16 is mounted on the reactor mounting surface 13b of the heat sink 13A, and the other is mounted on the mounting surface 12d formed on the bottom surface of the electrical component box 12A. That is what we did. With such a configuration, an expensive heat sink can be made smaller, so that it can be provided at a lower cost than that described above with reference to FIG.

A heat sink 1 shown in FIG.
FIG. 3B shows an increased number of mounting portions for the heat-generating component 15 in order to effectively use the upper surface thereof. The heat sink 13C shown in FIG. 5B is smaller than the former on the upper surface of the heat sink 13C so that one of the heat-generating components 15 can be provided to the heat sink 13C in order to further reduce the size and provide it at a lower cost.
Can be attached to the side wall 13c. With such a configuration, the heat sink 12 becomes more compact, which is the most advantageous in terms of cost.

[0013]

According to the outdoor unit having the electric component box as described above, the outdoor unit can be assembled more easily and the number of assembling steps can be reduced.
Separation is easier, the recycling rate is improved, and the environment is also beneficial.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an outdoor unit according to the present invention.

FIG. 2 is an enlarged front view of a main part showing the first embodiment of the present invention.

FIG. 3 is a perspective view of an electrical component box and the like showing the first embodiment of the present invention.

FIG. 4 is a perspective view of an electrical component box and the like showing a second embodiment of the present invention.

FIG. 5 is an essential part perspective view showing a third embodiment (A) and a fourth embodiment (B) of the present invention.

FIG. 6 is a schematic configuration diagram of an outdoor unit showing a conventional example.

FIG. 7 is a configuration perspective view of an electric component box and the like showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 5 Partition plate 6 Heat exchange room 7 Machine room 8 Outdoor heat exchanger 9 Blower 10 Compressor 11 Cover 12 Electrical component box 12A Electrical component box 12a Side wall 12b Engagement part 12c Support part 13 Heat sink 13A Heat sink 13B Heat sink 13C Heat sink 13a Heat radiation Fin 13b Reactor mounting surface 13c Vertical surface (vertical wall) 13 Printed wiring board 14 Heating component 15 Heating component 16 Reactor 17 Capacitor 18 Printed wiring board 19 Support 20 Support 21 Support plate

Claims (6)

[Claims] 1. An internal heat exchanger and a machine chamber are partitioned by a partition plate into a main body including a base and an outer body, and an outdoor heat exchanger and a blower for releasing heat-exchanged air to the outside of the heat exchange chamber. On the other hand, a compressor is arranged at the lower part of the machine room, and an electrical component box containing electrical components and the like for control is provided at the upper portion,
A reactor mounting surface is provided outside the upper side of the electrical component box, and a lower radiating fin is provided on one side of the heat sink exposed to the heat exchange chamber so as to extend in an L-shaped cross section. A reactor is mounted on the surface and housed inside one side of the electrical component box, while one of the supports for supporting the outer peripheral portion of the printed wiring board is placed on the upper surface of the heat sink, and the other is placed on the side wall of the electrical component box. An outdoor unit of an air conditioner, characterized in that the outdoor unit is supported by a plurality of support portions provided in the air conditioner, and the upper portion is covered with a lid. 2. The outdoor unit of an air conditioner according to claim 1, wherein the support for the printed wiring board is formed by dividing the support into left and right parts. 3. The outdoor unit of an air conditioner according to claim 1, wherein a locking portion for restricting movement of the heat sink is provided on a bottom surface of the electrical component box. 4. One of the mounting portions provided on the lower left and right of the reactor is mounted on a reactor mounting surface of the heat sink, and the other is mounted on a mounting surface protruding from a bottom surface of the electrical component box. An outdoor unit of the air conditioner according to 1. 5. The outdoor unit of an air conditioner according to claim 1, wherein a plurality of heat generating components can be attached between front and rear surfaces of the heat sink. 6. The outdoor unit of an air conditioner according to claim 1, wherein heat-generating components can be attached to both the upper surface and the vertical surface of the heat sink.