JP2001317767A - Out door unit of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the intrusion of water splashed by a blower fan into an electric component cabinet. SOLUTION: An air conditioner is provided with a blower chamber and the electric component cabinet comprising printed boards, a terminal block and a reactor wherein the printed circuit boards are arranged on the side of the blower chamber on the side surface of the electric component cabinet, and a holder fixing the printed circuit boars and forming a cover covering an opening part communicating between the electric component cabinet and the blower chamber is integrally formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly to a structure of an electric component box of an outdoor unit.

[0002]

FIG. 10 shows, for example, Japanese Patent Application Laid-Open No. 11-63574.
FIG. 1 is an exploded perspective view showing a main part of an electric component of an outdoor unit of a conventional air conditioner disclosed in Japanese Patent Application Publication No. JP-A-2006-133873, in which 1 is an outdoor unit of an air conditioner and a compressor room in which a compressor 2 is housed. There is provided a partition plate 4b for partitioning the heat exchanger 3a and the blower room 4a in which the blower 4 is stored. Reference numeral 5 denotes an electric component box which is disposed above the compressor chamber 2a and is housed in a manner protruding above the blower chamber 3a, and houses therein the reactor body 5a and the terminal block 5b,
Holds the first printed circuit board 7 horizontally,
It is fixed to the electric box 5. The first printed circuit board 7 has a first electronic component 7a and a second electronic component 7b that generate heat, which are first heat generating components, and are fixed to the first heat radiation fin 8 by screws. . As shown in FIGS. 12 and 13, the reactor body 5a has a cushion fixing member 5a1 on a pair of engaging pieces 5a3 of a plurality of fixing base portions 5a2 provided on an electric component box bottom 5d. 5a4, and the other fixed piece 5a1
Is fixed by a fastener 5c.

[0003] The second printed circuit board 9 comprises a substrate holder 1.
0, the second electronic component 1 is vertically fixed to the electrical component box 1.
1 is attached and fixed to the second heat radiation fin 12 with screws.

The electric component box 5 has a first opening 5e and a second opening 5f for communicating the electric component box with the blower room 3a.
Are provided, and a first cover 13 and a second cover 14 are attached to the first opening 5e and the second opening 5f on the side of the blower 3 so as to prevent intrusion of water jumped up from the blower. ing.

[0005] FIG. 11 is a Japanese Patent Application Laid-Open No. 10-205830.
Is a control circuit device for an air conditioner disclosed in Japanese Patent Application Publication No. H11-157,004. In the figure, reference numeral 5 denotes an electric component box, which is fixed to the electric component box 5 together with the reactor body 5a and the terminal block 5b. The first printed circuit board 7 has a first electronic component 7a and a second electronic component 7b that generate heat, which are first heat generating components, and are fixed to the first heat radiation fin 8 by screws. . The electric component box 5 has a first opening 5e and a second opening 5f.

[0006]

In the outdoor units of these conventional air conditioners, the first cover and the second cover are attached to the electrical component box in order to prevent the water jumped up from the blower from entering. Therefore, there is a problem that the number of parts is large and it takes time to assemble.

Further, in a conventional electric component box of an outdoor unit of an air conditioner, two projections are provided on a mounting surface for fixing the electric components to the electric component box, and a nut is fastened between the projections. As a result, the fixing member is securely fixed by the elasticity of the mounting member, so that there is a problem that the assembling work efficiency is reduced.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and covers a holder for holding a printed circuit board and fixing it to an electric component box, and an opening for communicating the electric component box with the blower room. An object of the present invention is to reduce the number of components and shorten the assembly time by integrating the cover, and to prevent the intrusion of water from the ventilation holes and allow the electric component box to ventilate.

The present invention also provides a holder for holding a heat radiation fin exposed and disposed on the side of the electric component box on the side of the blower while maintaining insulation from the electric component box, and an opening for communicating the electric component box with the blower chamber. By integrating the cover that covers the part,
The number of parts is reduced, assembling time is shortened, and water is prevented from entering from the ventilation holes to ventilate the electric component box.

[0010] Further, according to the present invention, since the holder and the bottom surface of the heat radiation fin are in close contact with each other, the number of parts can be reduced, the assembling time can be shortened, and water can be prevented from entering through the ventilation port to ventilate the inside of the box. And to prevent water from entering through the gap.

The present invention further comprises at least two printed circuit boards, one of which is provided with a main heat-generating component and a heat-dissipating fin, which are arranged on the side of the electric component box on the side of the blower,
By arranging the other board perpendicular to the board, the number of parts is reduced, assembly time is shortened, water is prevented from entering from the ventilation port, and the ventilation inside the electrical component box is effective. It is an object of the present invention to effectively cool a heat generating component on a printed circuit board.

Also, the present invention provides air paths on the left and right sides of the printed circuit board, thereby reducing the number of components, shortening the assembly time, preventing water from entering from the ventilation holes, and preventing electric components. An object of the present invention is to effectively ventilate the inside of a box and effectively cool heat-generating components on a printed circuit board.

[0013] Further, the present invention reduces the number of parts by forming the cover covering the opening with a heat radiation fin,
An object of the present invention is to shorten the assembling time, prevent the intrusion of water from a ventilation hole, allow the electric appliance box to ventilate, and effectively cool the radiation fins.

[0014]

An outdoor unit for an air conditioner according to the present invention is an air conditioner having a blower room, a printed circuit board, a terminal block, and an electric box composed of a reactor body. A printed circuit board is provided on the side of the blower room, and this printed circuit board is fixed,
It is provided with a resin holder that forms a cover that covers an opening communicating the electric component box and the blower room.

Further, the outdoor unit of the air conditioner according to the present invention is an air conditioner having a blower room and an electric component box composed of a printed circuit board, a terminal block, and a reactor body. A holder is provided that holds the fins and integrally forms a cover that covers an opening communicating the electric component box and the blower room.

In the outdoor unit of the air conditioner according to the present invention, the holder is provided with a surface which is in close contact with the bottom surface of the heat radiation fin.

Further, the outdoor unit of the air conditioner according to the present invention includes at least two printed boards, one of which is provided with a heat-generating component and a heat-dissipating fin, and arranged on the blower-side surface of the electric component box. , And the other substrate is arranged perpendicular to the substrate.

Further, the outdoor unit of the air conditioner according to the present invention has openings provided on the left and right sides of the printed circuit board for communicating with the blower room.

An outdoor unit of an air conditioner according to the present invention is an air conditioner having a blower room and an electric component box including a printed circuit board, a terminal block, and a reactor body. The cover that covers the opening communicating with is formed of a heat radiation fin.

Further, the outdoor unit of the air conditioner according to the present invention includes a reactor body provided in an electric component box, and a pedestal higher than a fixing base portion for fixing the reactor on a bottom surface of the electric component box immediately below the reactor main body. A member is provided.

In the outdoor unit of the air conditioner according to the present invention, a pedestal member higher than the fixed base is formed integrally with the bottom of the electric component box to form a fixed projection.

Further, in the outdoor unit of the air conditioner according to the present invention, a pedestal member higher than the fixed base portion is integrally formed on the bottom of the electric component box to form a conical portion, and a locking recess is provided on the bottom surface of the reactor. Things.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, an outdoor unit of an air conditioner according to Embodiment 1 of the present invention will be described with reference to FIGS. In the figure, reference numeral 1 denotes an outdoor unit of an air conditioner, and a compressor room 2 in which a compressor 2 is stored.
a, a blower room 4a in which the heat exchanger 3 and the blower 4 are stored
Are divided by a partition plate 4b. 5 is an electric appliance box
It is housed in the upper part of the compressor room 2a in such a manner as to overhang the upper part of the blower 4a, the reactor 5a and the terminal block 5b are arranged in the inner bottom part 5c, and the first opening part 5e and the second opening part A portion 5f and a third opening 5h are provided. Reference numeral 6 denotes a substrate holder body made of a synthetic tree for fixing the first printed circuit board 7, which is provided with a holder opening 6 a in the center to face the first electronic component 7 a as a heat-generating component.
Screw 6 into electrical component box 5 so as to penetrate through opening 5h.
b. A first cover 13 and a second cover 14 for waterproofing are provided integrally with the substrate holder 6. Reference numeral 8 denotes a radiating fin which is mounted on the rear surface of the substrate holder 6 by being discharged toward the blower chamber of the outdoor unit. The heat radiation fin is exposed from the side surface of the electric component box 5 toward the blower room 4a, and is located in a space outside the rotation range of the blower 4. 9 is a side wall surface of the electric component box 5
The second printed circuit board mounted on the second opening 5f side of
3 a first cover provided on one side of the substrate holder 6;
Reference numeral 4 denotes a second cover provided on the other side of the substrate holder.

FIG. 6 is an explanatory sectional view showing the fixing of the reactor to the bottom of the electric component box. In the figure, 1
5a is a plurality of fixing bases 5 provided at the bottom 5d of the electric component box.
This is a pedestal member provided at substantially the center of a2 and higher than the fixed base 5a2.

Next, the operation of the first embodiment will be described. A louver 16a is provided on the service panel 16 on the right side of the electric component box 1 for radiating heat in the internal space of the electric component box 1. When the blower chamber 4a becomes negative pressure due to the rotation of the blower 4 during operation, the outside air flow is reduced. Then, the airflow passing through the inside of the electric component box 5 flows through the first opening 5a and the second opening 5b so as to be drawn into the blower room 4a. Since the heat radiation fin 8 is exposed to the side of the blower chamber 4a, the cooling is promoted by the external air flow due to the rotation of the blower 4.

Next, the fixing of the reactor will be described.
One reactor fixing piece 5a1 is inserted and locked to a pair of engaging pieces 5a3 of a plurality of fixing bases 5a2 provided on the electric component box bottom 5d. The other fixing piece 5a1 is tightened and fixed from above by a fastener 5c. At this time, the one reactor fixing piece 5a1 can be fixed while being pressed above the engaging piece 5a3 by the base member 15a provided at the center.

In the electric component box configured as described above, the substrate holder 6 for fixing the first printed circuit board 7 is made of resin, and the first cover 5 covering the first opening 5a and the second opening 5b.
By integrating the cover 13 and the second cover 14, the number of components can be reduced, and the intrusion of water jumped up from the blower 4 can be prevented, so that the internal space of the electric component box 5 can be radiated.

Embodiment 2 Hereinafter, a second embodiment of the present invention will be described. In FIG. 5, in an electric component box configured as shown in the first embodiment, first opening 5
c, the first cover 13 and the second cover 14 that cover the second opening 5d are integrally formed with the radiating fin 8, thereby reducing the number of parts and preventing the intrusion of water jumped up from the blower 3 to generate electricity. The internal space of the product box 5 can be radiated. Further, the area of the heat radiation fin 8 is increased, and the heat radiation effect can be enhanced.

Embodiment 3 FIG. 7 shows a third embodiment of the present invention, and is a cross-sectional explanatory view showing attachment and fixation of the reactor to the bottom of the electric component box. In the figure, reference numeral 15b denotes a fixed projection provided substantially at the center of the plurality of fixed bases 5a2 provided on the bottom 5d of the electric component box and higher than the fixed base 5a2 and integrally with the bottom 5d.

Embodiment 4 FIG. 8 shows a fourth embodiment of the present invention, and is a cross-sectional explanatory view showing attachment and fixation of the reactor to the bottom of the electric component box. In the drawing, reference numeral 15c denotes a conical portion provided substantially at the center of the plurality of fixing bases 5a2 provided on the bottom 5d of the electric component box and higher than the fixing base 5a2 and integrally with the bottom 5d. Reference numeral 15d denotes a locking recess provided on the bottom surface of the reactor to be engaged with the conical portion 15c.

[0031]

As described above, the outdoor unit of the air conditioner according to the present invention is an air conditioner having an air conditioner having a blower room, a printed circuit board, a terminal block, and a reactor body. A printed circuit board is provided on the side of the product box on the side of the blower room, and the printed circuit board is fixed, and a resin holder that forms a cover that covers an opening communicating the electric box and the blower room is provided. This has the effect of reducing the number of components, preventing the intrusion of water jumped up from the blower fan, and radiating heat in the internal space of the electrical component box.

Further, the outdoor unit of the air conditioner according to the present invention is an air conditioner having a blower room and an electric component box including a printed circuit board, a terminal block, and a reactor body, and a radiation fin provided outside the blower room. And a holder that integrally forms a cover that covers the opening that connects the electrical component box and the blower room.This reduces the number of parts and prevents the intrusion of water splashed from the blower fan. This has the effect of preventing the internal space of the electrical component box from radiating heat while preventing the electric component box.

Further, since the outdoor unit of the air conditioner of the present invention has a structure in which the holder is provided with a surface which is in close contact with the bottom surface of the heat radiation fin, it has an effect of preventing water from entering through the gap.

The outdoor unit of the air conditioner according to the present invention includes at least two printed boards, and a main heat-generating component and a radiating fin are mounted on one of the boards.
Place it on the blower side of the electrical component box and place the other board
Since the electronic component is arranged vertically to the substrate, the electronic component that generates heat inside the electrical component box can be effectively cooled.

Further, the outdoor unit of the air conditioner according to the present invention is configured such that the openings communicating with the blower room are provided on the left and right sides of the printed circuit board, so that the heat-generating electronic components inside the electric component box are effectively cooled. can do.

The outdoor unit of the air conditioner according to the present invention is an air conditioner having a blower room, an electric crystal box including a printed circuit board, a toy stand, and a reactor body. The cover that covers the communicating opening is made of a radiating fin, so the number of parts is reduced, the intrusion of water jumped up from the blower fan is prevented, and the internal space of the electrical component box is radiated. The area of the fin is widened, and the heat radiation effect can be enhanced.

The outdoor unit of the air conditioner according to the present invention includes a reactor body provided in an electric component box, and a pedestal member higher than a fixing base portion for fixing the reactor on a bottom surface of the electric component box immediately below the reactor main body. Because it was configured with
Even if there is a variation in assembly of the parts themselves, there is an effect that the parts can be securely fixed without being affected by vibration or the like.

In the outdoor unit of the air conditioner according to the present invention, a pedestal member higher than the fixed base is formed integrally with the bottom of the electrical component box to form a fixed projection, so that assembly is facilitated and reliable. And can be formed at low cost.

In the outdoor unit of the air conditioner according to the present invention, a pedestal member higher than the fixed base is formed integrally with the bottom of the electrical component box to form a conical portion, and a locking recess is provided on the bottom surface of the reactor. As a result, variations in assembling can be reduced, and it is possible to more reliably fix and to achieve an inexpensive molding.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a main part of an outdoor unit of an air conditioner according to Embodiment 1 of the present invention.

FIG. 2 is a plan sectional view showing an outdoor unit of the air conditioner according to Embodiment 1 of the present invention.

FIG. 3 is a front view showing an outdoor unit of the air conditioner according to Embodiment 1 of the present invention.

FIG. 4 is a partially enlarged exploded perspective view showing a main part of an electric component box of the outdoor unit of the air conditioner according to Embodiment 1 of the present invention.

FIG. 5 is a perspective view showing a radiation fin of the outdoor unit of the air conditioner according to Embodiment 1 of the present invention.

FIG. 6 is a perspective view showing a reactor fin of an outdoor unit of an air conditioner according to Embodiment 2 of the present invention.

FIG. 7 is an explanatory sectional view showing fixing of a reactor of an outdoor unit to a bottom of an electric component box according to Embodiment 3 of the present invention.

FIG. 8 is an explanatory sectional view showing fixing of a reactor of an outdoor unit to a bottom of an electric component box according to Embodiment 4 of the present invention.

FIG. 9 is a front view showing an outdoor unit of a conventional air conditioner.

FIG. 10 is an exploded perspective view showing a main part of an outdoor unit of a conventional air conditioner.

FIG. 11 is an exploded perspective view of a main part showing an outdoor unit beside an air conditioner according to a second conventional example.

FIG. 12 is an enlarged exploded perspective view showing the fixing of the reactor to the bottom of the electric component box by the outdoor unit of the conventional air conditioner.

FIG. 13 is a main part side view showing the fixing of the reactor to the bottom of the electric component box by the outdoor unit of the conventional air conditioner.

[Explanation of symbols]

1 outdoor unit of air conditioner, 2 compressor, 2a compressor room, 4 blower, 4a blower room, 5 electric parts box,
5a Reactor, 5a2 Fixed base, 5a3 engagement piece, 5a
b terminal block, 5c bottom, 5e first opening, 5f second opening, 6 substrate holder, 7 first printed circuit board, 8
Heat radiation fin, 13 first cover, 14 second cover,
15a fixing member, 15b fixing protrusion, 15c conical part, 15d locking recess.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazunori Ikeya 2-6-1 Otemachi, Chiyoda-ku, Tokyo Within Mitsubishi Electric Engineering Co., Ltd. (72) Inventor Tatsuya Asanuma 2-6-chome, Otemachi, Chiyoda-ku, Tokyo 2 Mitsubishi Electric Engineering Co., Ltd. (72) Inventor Hiroshi Iwasaki 2-6-2 Otemachi, Chiyoda-ku, Tokyo Tokyo Mitsui Electric Engineering Co., Ltd. (72) Kaoru Yamamoto 2-chome Otemachi, Chiyoda-ku, Tokyo No. 6-2 Mitsubishi Electric Engineering Co., Ltd. (72) Inventor Kenichi Umino 2-6-2 Otemachi, Chiyoda-ku, Tokyo (72) Inventor Kazuhito Kojima Otemachi, Chiyoda-ku, Tokyo 2-6-1, Mitsubishi Electric Engineering Co., Ltd.

Claims (9)

[Claims] 1. An air conditioner having a blower room and an electric component box including a printed circuit board, a terminal block, and a reactor, a printed circuit board is provided on a side of the electric component box on the side of the blower room, and the printed circuit board is fixed. An outdoor unit for an air conditioner, further comprising: a resin holder that forms a cover that covers an opening communicating the electric component box and the blower room. 2. An air conditioner having a blower room and an electric component box including a printed circuit board, a terminal block, and a reactor, wherein a heat radiation fin provided outside the blower room is held, and the electric component box and the blower room are connected to each other. An outdoor unit for an air conditioner, comprising a holder integrally formed with a cover for covering an opening communicating with the air conditioner. 3. The outdoor unit of an air conditioner according to claim 2, wherein the holder is provided with a surface that is in close contact with the bottom surface of the heat radiation fin. 4. At least two printed circuit boards,
2. The air conditioner according to claim 1, wherein a heat-generating component and a heat radiation fin are attached to one of the substrates, arranged on a surface of the electric component box on the side of the blower, and the other substrate is arranged perpendicular to the substrate. Outdoor unit of the machine. 5. The outdoor unit of an air conditioner according to claim 1, wherein openings communicating with the blower room are provided on left and right sides of the printed circuit board. 6. An air conditioner having a blower room and an electric component box including a printed circuit board, a terminal block, and a reactor body, wherein a cover for covering an opening communicating the electric component box and the blower room is provided with a radiation fin. An outdoor unit of an air conditioner, wherein the outdoor unit is formed. 7. An air conditioner comprising: a reactor main body provided in an electric component box; and a pedestal member higher than a fixing base portion for fixing the reactor is provided on a bottom surface of the electric component box immediately below the reactor main body. Outdoor unit. 8. The outdoor unit of an air conditioner according to claim 7, wherein a pedestal member higher than the fixed base portion is formed integrally with the bottom of the electric component box to form a fixed projection. 9. The reactor according to claim 7, wherein a pedestal member higher than the fixed base portion is formed integrally with the bottom of the electric component box to form a conical portion, and a locking recess is provided on the bottom surface of the reactor body. Outdoor unit of air conditioner.