JP2002243210A - Outdoor machine for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an outdoor machine for an air conditioner situated at the upper part of a compressor chamber capable of improving ventilation performance of the internal part of an electric accessory box having an air inflow port on one side and an air outflow on the other side, and capable of effectively cooling electrical parts attached to a horizontal substrate separated away from its bottom. SOLUTION: An air outflow hole 10 through which a part of air flowing in through the air inflow port 5 flows out is formed of a cut rise 4b, and an introduction hole 11 through which air flowing out through the air outflow hole 10 after passage of it through the lower part of a substrate 9 is guided to a heat exchanger chamber is formed by a cut rise 2b.

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 air permeability inside an electric component box provided at an upper part of a compressor room.

[0002]

2. Description of the Related Art As shown in FIGS. 2A and 2B, for example, an outdoor unit of a conventional air conditioner has a base 1 standing on the base 1 and a flange formed on a peripheral portion thereof. Is formed into a compressor chamber and a heat exchanger chamber by a partition plate 2 provided at an upper part, and a compressor 3 is provided in the compressor chamber, and an air inlet is provided on one side at an upper part thereof. 5 with the heat exchanger room facing the other side, an air outlet 6 covered with a water shield 15 and a heat sink 14 for the power module 13, supported by the notch and a small distance from the bottom surface 4 a. An electrical component box 4 having a horizontal substrate 9 is provided at a position separated from the electrical component box 4. A heat exchanger 7 and a blower 8 opposed to the electrical component box are provided in the heat exchanger chamber. 12 and the air inflow through the air inlet 5 and the air outflow The electrical components mounted on the substrate 9 in the electrical component box 4 are cooled by the air flowing out of the electrical component box 4.

However, as described above, when the substrate 9 is horizontally installed with a slight distance from the bottom surface 4a of the electrical component box 4, the substrate 9 flows in from the air inlet 5 and the air outlet 6 Since the air flowing out of the substrate 9 hardly passes through the lower surface of the substrate 9, the electric components mounted on the lower surface of the substrate 9 cannot be cooled effectively.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has been developed in consideration of the above problems. It is an object of the present invention to provide an outdoor unit of an air conditioner in which ventilation performance is enhanced so that electric components mounted on a horizontal substrate separated from a bottom surface thereof can be effectively cooled.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a partition plate having a notch formed on a base, and a flange formed on a peripheral edge of the base. The air is divided into a compressor room and a heat exchanger room, a compressor is provided in the compressor room, an air inlet is provided on one side, and the heat exchanger room faces the other side. An electrical component box provided with a horizontal board is provided at a position slightly away from the bottom surface, provided with an outflow port and a heat sink for a power module, and provided at a position slightly separated from the bottom surface, and a heat exchanger is provided in the heat exchanger chamber. In the outdoor unit of an air conditioner provided with a blower facing each other, an air outflow hole through which a part of the air that has flowed in from the air inflow port is provided on the bottom surface of the electrical component box, On the plate, passing through the lower part of the substrate It has a structure in which a flow guide hole for guiding the air flowing out from the air outlet hole in the heat exchanger chamber.

[0006] Further, the heat sink is provided near the air guide hole.

The electrical component box is made of sheet metal, and the air outlet hole is formed by cutting and raising.

The cut-and-raised portion is formed so as to protrude downward from the bottom of the electrical component box.

The cut-and-raised portion is formed so that a base end thereof is formed along a distal end edge of the flange.

[0010] The cut-and-raised portion is formed so that a tip portion thereof is directed to the air guide hole.

The electrical component box is made of sheet metal, and the air outlet hole is formed by cutting and narrowing.

[0012] Further, the cutting aperture is formed so as to protrude downward from the bottom of the electrical component box.

[0013] Further, the cutting aperture is formed so that a tip portion thereof is inclined downward toward the air guide hole.

Further, the partition plate is made of sheet metal, and the air guide hole is formed by cutting and raising.

Further, the partition plate is made of sheet metal, and the air guide holes are formed by cutting and restricting.

[0016] The cut-and-raised or cut-and-squeezed portion is cut and raised or narrowed toward the compressor chamber.

Further, the cut-and-raised or cut-out aperture is configured such that its upper end is inclined so as to protrude more toward the compressor chamber than its lower end.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as examples. 1A and 1B are explanatory views of an outdoor unit of an air conditioner according to the present invention. FIG. 1A is a transparent perspective view, and FIG.
(C) is a sectional view of a principal part showing a second example, (D) is a sectional view of a principal part showing a third example, and (E) is a sectional view of a principal part showing a fourth example.

As shown in FIGS. 1A to 1D,
The outdoor unit of the air conditioner according to the present invention is placed on the base 1 in substantially the same manner as described above as the prior art.
The compressor room and the heat exchanger room are partitioned by a sheet metal partition plate 2 having a notch formed on the upper portion and having a flange 2a formed on a peripheral portion provided on an upper portion, and a compressor 3 is provided in the compressor room. In addition, an air inlet 5 is provided on one side at an upper portion thereof, and the heat exchanger room is exposed to the other side, and an air outlet 6 and a power outlet covered with a water shield 15 for preventing rainwater from entering are provided. A heat sink 14 for the module 13 is provided, and the sheet metal electrical component box 4 provided with the horizontal substrate 9 is provided at a position slightly apart from the bottom surface 4a and supported by the notch, and heat exchange is performed in the heat exchanger room. A vessel 7 and a blower 8 opposed to the vessel 7 are provided, and an outer shell 12 is attached to the base 1. The air flows in from the air inlet 5 and flows out of the air outlet 6. Electrical components attached to the substrate 9 in the electrical component box 4 It has a configuration to allow cooling.

As shown in FIGS. 1A and 1B as a first example, the electric components and the heat sink 14 mounted on the substrate 9 can be more effectively cooled. An air outflow hole 10 through which a part of the air that has flowed in from the air inflow port 5 is provided in the bottom surface 4a of the electrical component box 4 and the partition plate 2 passes through a lower portion of the substrate 9 and passes through the lower portion. An air guide hole 11 for guiding the air flowing out of the air outlet hole 10 to the heat exchanger chamber is provided, and the heat sink 14 is provided near the air guide hole 11.

The air outlet hole 10 is formed by a cut-and-raised portion 4b projecting downward from the bottom surface 4a of the electrical component box 4 so as not to infringe on the internal space of the electrical component box 4. By forming the base end of 4b along the front end edge of the flange 2a, it is easy to position the side of the electrical component box 4 with respect to the perspective view,
The cut-and-raised portions 4b are raised at an acute angle as shown by a broken line in FIG. 1 (B) so that the air flowing from the air outflow holes 10 to the air guide holes 11 can be smoothly guided.

Here, the air guide holes 11 provided in the partition plate 2 made of sheet metal will be described with reference to FIG. 1B shown as a first example. The air guide hole 11 is formed by a cut-and-raised portion 2b protruding toward the compressor chamber, and the air sent out from the air outlet hole 10 is cut and raised as shown by an arrow in FIG. 2b allows the heat to be efficiently introduced into the heat exchanger room.

Next, the configuration of the air outlet hole 10 and the air guide hole 11 will be described with reference to FIG. 1C shown as a second example. The air outlet hole 10 is provided at the bottom of the electrical component box 4 so as not to invade the internal space of the electrical component box 4.
The cut-and-raised portion 4b 'protruding downward from 4a is formed, and the tip of the cut-and-raised portion 4b is formed so as to face the air guide hole 11, so that the air sent out from the air outflow hole 10 is The cut-and-raised portion 4b 'enables efficient guiding.

The air guide hole 11 is cut and raised toward the compressor chamber as in the case of the first embodiment.
2b, the air delivered from the air outlet 10 and guided by the cut-outs 4b '
The cut-and-raised portion 2b efficiently guides the air to the air guide hole 11. At this time, the flow of air is continuously guided by the cut-and-raised portion 4b 'and the cut-and-raised portion 2b, as indicated by arrows shown in FIG.

Next, the configuration of the air outlet hole 10 and the air guide hole 11 will be described with reference to FIG. 1D shown as a third example. The air outlet hole 10 is provided at the bottom of the electrical component box 4 so as not to invade the internal space of the electrical component box 4.
Formed by a cutting diaphragm 4c protruding downward from 4a,
The tip of the cut-out aperture 4c is formed so as to be inclined low toward the air guide hole 11, and the air sent out from the air outlet hole 10 is dispersed to the side by the cut-off aperture 4c. Without being efficiently guided to the air guide holes 11. In addition,
The air guide holes 11 are formed by cut-and-raised portions 2b that are cut and raised toward the compressor chamber as in the first and second examples.

Next, the structure of the air outflow hole 10 and the air guide hole 11 will be described with reference to FIG. 1E shown as a fourth example. The air outlet hole 10 was formed by the same throttle 4c as in the third example described above, while the air guide hole 11 was formed by the throttle 2c narrowed to the compressor chamber side. Thereby, the air sent out from the air outflow hole 10 and guided from the air guide hole 11 to the heat exchanger chamber,
It will be more efficiently guided without being dispersed on those sides.

[0027]

As described above, according to the present invention,
Provided at the upper part of the compressor room, the airflow inside the electrical component box having an air inlet on one side and an air outlet on the other side was enhanced, and it was mounted on a horizontal substrate separated from the bottom surface. An outdoor unit of an air conditioner that can effectively cool electric components.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an outdoor unit of an air conditioner according to the present invention,
(A) is a transparent perspective view, (B) is a main part cross-sectional view showing a first example, (C) is a main part cross-sectional view showing a second example, and (D) is a third example. It is principal part sectional drawing which shows, (E) is principal part sectional drawing which shows a 4th example.

FIG. 2 is an explanatory view of an outdoor unit of an air conditioner according to a conventional example.
(A) is a transparent perspective view, (B) is a perspective view of a main part.

[Explanation of symbols]

 I Base 2 Partition plate 2a Flange 2b Cut and rise 2c Cut and squeeze 3 Compressor 4 Electrical component box 4a Bottom 4b and 4b 'Cut and sway 4c Cut and squeeze 5 Air inlet 6 Air outlet 7 Heat exchanger 8 Blower 9 Substrate 10 Air outflow Hole 11 Ventilation hole 12 Outer shell 13 Power module 14 Heat sink 15 Water shield

Claims (13)

[Claims] 1. A base plate is provided on the base, and a notch having a flange formed on a peripheral edge thereof is partitioned into a compressor chamber and a heat exchanger chamber by a partition plate provided on an upper part. A compressor is provided in the machine room, an air inlet is provided on one side, and an air outlet facing the heat exchanger room and a heat sink for a power module are provided on the other side. An air conditioner provided with an electrical component box provided with a horizontal substrate at a position which is supported and slightly separated from the bottom surface, and a heat exchanger and a blower opposed thereto are provided in the heat exchanger chamber. In the outdoor unit, an air outlet hole is provided on a bottom surface of the electrical component box to allow a part of the air flowing in from the air inlet to flow out, and the air outlet hole passes through a lower portion of the substrate on the partition plate. The air escaping from the chamber to the heat exchanger chamber An outdoor unit of an air conditioner, comprising an air guide hole. 2. The outdoor unit of an air conditioner according to claim 1, wherein the heat sink is provided near the air guide hole. 3. The outdoor unit of an air conditioner according to claim 1, wherein the electrical component box is made of sheet metal, and the air outflow hole is formed by cutting and raising. 4. The outdoor unit of an air conditioner according to claim 3, wherein the cut-and-raised portion is formed to protrude downward from a bottom surface of the electrical component box. 5. The outdoor unit for an air conditioner according to claim 4, wherein the cut-and-raised portion is formed such that a base end thereof is along a distal end edge of the flange. 6. The outdoor unit for an air conditioner according to claim 4, wherein the cut-and-raised portion is formed so that a tip portion thereof is directed to the air guide hole. 7. The outdoor unit of an air conditioner according to claim 1, wherein the electrical component box is made of sheet metal, and the air outflow hole is formed by cutting and narrowing. 8. The outdoor unit of an air conditioner according to claim 7, wherein the cut-out aperture is formed so as to protrude downward from a bottom surface of the electrical component box. 9. The outdoor unit of an air conditioner according to claim 8, wherein the cut-off aperture is formed such that a tip portion thereof is inclined downward toward the air guide hole. 10. The outdoor unit of an air conditioner according to claim 1, wherein the partition plate is made of a sheet metal, and the air guide holes are formed by cutting and raising. 11. The outdoor unit of an air conditioner according to claim 1, wherein the partition plate is made of sheet metal, and the air guide holes are formed by cutting and restricting. 12. The air according to claim 1, wherein the cut-and-raised or cut-and-restricted portion is cut and raised on the compressor chamber side, or is cut and narrowed. Harmonic outdoor unit. 13. The cut-and-raised or cut-down aperture is inclined so that an upper end thereof projects more toward the compressor chamber than a lower end thereof.
An outdoor unit of the air conditioner according to any one of claims 0 to 12.