JP2013137159A - Air conditioner outdoor unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner outdoor unit that has heat radiation duct structure for preventing intrusion of water and mist without deteriorating heat radiation efficiency.SOLUTION: A partition plate partitions the inside of an air conditioner outdoor unit to an air blowing chamber and a machine chamber. The air blowing chamber includes a fan and a fan motor. The machine chamber houses a compressor and refrigeration cycle parts such as refrigerant piping. The outdoor unit for the air conditioner further includes an electrical parts box above the machine chamber. The electrical parts box includes a heat radiation plate for radiating heat which is heat-generated from the electrical parts, and a heat radiation duct for radiating the heat of electrical parts. The heat radiating duct includes a first open hole 16 for conducting heat radiation from the electrical parts box to the outside directly, and a second open hole 18 for releasing heat from the first open hole 16 to an air blowing chamber side. The first open hole 16 and the second open hole 18 are arranged to be opposite, and further the first open hole and the second open hole is arranged with displacement.

Description

  The present invention relates to a heat radiating plate fixing device arranged in an electrical box used for an outdoor unit of an air conditioner.

  Conventionally, this type of outdoor unit of an air conditioner has to discharge the heat released in the machine room to the blower chamber side, but it has a heat radiating duct to prevent water and mist from entering the electrical box. (For example, refer to Patent Document 1).

FIG. 9 shows a plan view of an outdoor unit of a conventional air conditioner described in Patent Document 1. As shown in FIG.
FIG. 10 is a front view of a conventional outdoor unit of an air conditioner.

  As shown in FIGS. 9 and 10, the interior of the outdoor unit main body 1 is attached to a machine room 5 containing a compressor 3, a refrigerant pipe 4, and the like, a heat exchanger 6, and a fan motor 7 by a partition plate 2. And a blower chamber 9 composed of a fan 8 and the like.

  Above the machine room 5, there is provided an electrical box 11 that houses an electrical component 10 for controlling the operation of the outdoor unit main body 1, and the electrical box 11 is arranged so as to protrude toward the blower chamber 9.

  The electrical box 11 is provided with a heat radiating plate 12 to dissipate the heat generated from the electric component 10 to the air blowing chamber 9 side, and the air radiated from the inside of the electric equipment box 11 to the air blowing chamber 9 side is disposed above the heat radiating plate 12. Is provided with a heat radiating duct 13.

JP 2005-69653 A

  However, the conventional configuration has a problem that although it is possible to prevent large water droplets from entering the heat radiating duct, it is difficult to completely prevent mist from entering.

  An object of the present invention is to solve the conventional problems described above, and to provide an outdoor unit of an air conditioner having a heat radiating duct structure that prevents intrusion of water and mist without lowering heat radiation efficiency.

  In order to solve the above-described conventional problems, the outdoor unit of the air conditioner of the present invention is divided into a blower chamber and a machine chamber by a partition plate, and the fan chamber includes a fan and a fan motor. In the outdoor unit of an air conditioner that houses refrigeration cycle parts such as a compressor and refrigerant pipes, and further has an electrical box above the machine room, the electrical box is a heat sink that radiates heat generated from the electrical parts, A heat-dissipating duct that dissipates heat from the electrical component, and the heat-dissipating duct includes a first opening hole that directs heat radiation from the electrical box directly to the outside, and a second that releases heat from the first opening hole to the blower chamber side. The first opening hole and the second opening hole are arranged so as to face each other, and the first opening hole and the second opening hole are arranged so as to be shifted from each other. Can be prevented from entering the inside of the electrical box via the heat dissipation duct. Kill.

  The present invention can provide an outdoor unit of an air conditioner having a heat radiating duct structure that prevents intrusion of water and mist without lowering heat radiation efficiency.

The top view of the outdoor unit of the air conditioner in Embodiment 1 of this invention The front view of the outdoor unit of the air conditioner in Embodiment 1 Sectional drawing of the heat radiating duct of the outdoor unit of the air conditioner in Embodiment 1 Electrical unit box perspective view of the outdoor unit of the air conditioner in the first embodiment The electrical equipment box inside perspective view of the outdoor unit of the air conditioner in the first embodiment The electrical equipment box interior perspective view of the outdoor unit of the air conditioner in Embodiment 2 of the present invention The electrical equipment box interior perspective view of the outdoor unit of the air conditioner in Embodiment 3 of the present invention The electrical equipment box perspective view of the outdoor unit of the air conditioner in Embodiment 3 Plan view of a conventional air conditioner outdoor unit Front view of a conventional air conditioner outdoor unit

  The outdoor unit of the air conditioner of the first invention is divided into a blower chamber and a machine room by a partition plate, the fan chamber is provided with a fan and a fan motor, and the machine room is provided with a freezer such as a compressor and a refrigerant pipe. In an air conditioner outdoor unit that houses cycle parts and further has an electrical box above the machine room, the electrical box dissipates heat generated from the electrical parts and heat dissipation that dissipates heat from the electrical parts. A heat dissipating duct, and the heat dissipating duct has a first opening hole that directly guides heat radiation from the electrical box to the outside, and a second opening hole that releases heat from the first opening hole to the air blowing chamber side, By arranging the first opening hole and the second opening hole so as to face each other and further shifting the first opening hole and the second opening hole, the mist is electrically connected via the heat radiating duct. Intrusion into the box can be prevented.

  In the air conditioner of the second invention, in particular, in the first invention, the first opening hole and the second opening hole have a circular shape, so that the heat dissipation efficiency is not impaired, and the mist has a simple configuration. Can be prevented from entering.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is a plan view of an outdoor unit of an air conditioner according to Embodiment 1 of the present invention, FIG. 2 is a front view of the outdoor unit of the air conditioner according to Embodiment 1, and FIG. 4 is a cross-sectional view of the heat radiating duct of the outdoor unit of the air conditioner, FIG. 4 is a perspective view of an electrical box of the outdoor unit of the air conditioner in the first embodiment, and FIG. 5 is a perspective view of the outdoor unit of the air conditioner in the first embodiment. It is an electrical equipment box inside perspective view.

  First, the structure of the outdoor unit of the air conditioner in this Embodiment is demonstrated using FIGS. 1-5. In the present embodiment, the interior of the outdoor unit main body 1 includes a machine room 5 in which a compressor 3 and a refrigerant pipe 4 are accommodated by a partition plate 2, a fan 8 attached to a heat exchanger 6 and a fan motor 7, and the like. It is constituted separately from the air blowing chamber 9 constituted by

  Above the machine room 5, there is provided an electrical box 11 that houses an electrical component 10 for controlling the operation of the outdoor unit main body 1, and the electrical box 11 is arranged so as to protrude toward the blower chamber 9.

The electrical box 11 is provided with a heat radiating plate 12 to dissipate the heat generated from the electric component 10 to the air blowing chamber 9 side, and the air radiated from the inside of the electric equipment box 11 to the air blowing chamber 9 side is disposed above the heat radiating plate 12. Is provided with a heat radiating duct 13.

  The heat radiating plate 12 is attached to the heat radiating plate mounting plate 14, and the inflow hole 15 is provided in the heat radiating plate mounting plate 14. A first opening 16 is provided on the side of the heat radiating duct 13 where the electrical box 11 is disposed, and a heat radiating duct partition plate 17 is provided inside the heat radiating duct 13 to prevent water from entering the interior of the electrical box 11. Is provided.

  A second opening hole 18 is provided in the heat radiating duct partition plate 17. Further, the bottom surface of the heat radiating duct 13 is provided with a heat radiating hole 19, and the inflow hole 15, the first opening hole 16, the second opening hole 18, and the heat radiating hole 19 are organically related. A heat radiating duct 13 is configured.

  About the outdoor unit of the air conditioner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, during the operation of the outdoor unit body 1, the heat generated inside the electrical box 11 passes through the inflow hole 15 provided in the heat sink mounting plate 14 and passes through the first opening hole 16 inside the heat sink duct 13. After passing through the second opening hole 18 provided with the heat radiating duct partition plate 17 provided inside the heat radiating duct 13, the air is discharged from the heat radiating hole 19 provided on the bottom surface of the heat radiating duct 13 to the blower chamber 9. Is done.

  Conversely, when the outdoor unit body 1 is stopped, rainwater or mist enters from the heat radiating hole 19, passes through the second opening hole 18 and the first opening hole 16, and attempts to enter the interior of the electrical box 11 from the inflow hole 15. And Since rainwater is provided with the heat radiating duct partition plate 17, it is possible to prevent the rainwater from entering the electrical equipment box 11.

  Further, the first opening hole 16, the second opening hole 18 and the inflow hole 15 are not arranged in series but are arranged alternately. The mist that has passed through the first opening 16 when entering the mist enters linearly and collides with the wall surface of the heat radiating duct 13.

  Since the second opening hole 18 is not arranged in series with the first opening hole 16, the mist cannot directly pass through the second opening hole 18, thereby preventing mist intrusion from the first opening hole 16. it can.

  Even if some mist enters from the first opening hole 16, the first opening hole 16 and the inflow hole 15 provided in the heat sink mounting plate 14 are not arranged in series, but alternately. Therefore, the mist can be prevented from entering from the inflow hole 15 as described above.

  As described above, in the present embodiment, the electrical box efficiently dissipates the heat generated from the electrical components, and the heat sink that is fixed to the heat sink mounting plate and the heat stored in the electrical box are efficiently blown into the blower chamber. A heat radiating hole for discharging to the side and a heat radiating duct with a first opening hole at the entrance, and a heat radiating duct partition plate for preventing water intrusion with a second opening hole inside the heat radiating duct, The inflow hole provided in the plate mounting plate, the first opening hole, and the second opening hole provided in the heat radiating duct partition plate are alternately arranged to reduce the heat radiation efficiency of the heat generated in the electrical box. Therefore, it is possible to provide an outdoor unit for an air conditioner that can prevent intrusion of mist.

(Embodiment 2)
FIG. 6 is an internal perspective view of the electrical box of the outdoor unit of the air conditioner according to the second embodiment of the present invention. In FIG. 6, it has a small slot shape in which the inflow holes 15 provided in the heat sink mounting plate 14 are continuously arranged. The total area of the inflow holes 15 is arranged so as not to become small. As a result, the opening area of each of the inflow holes 15 is reduced, so that mist can be prevented from entering from the inflow holes 15 into the electrical equipment box 11.

  As described above, in the present embodiment, since the inflow holes provided in the heat sink mounting plate have a small elongated hole shape continuously arranged, the heat generated inside the electrical box can be dissipated efficiently. It is possible to provide an outdoor unit for an air conditioner that can prevent mist from entering without lowering.

(Embodiment 3)
FIG. 7 is an internal perspective view of an electrical box of an outdoor unit of an air conditioner according to Embodiment 3 of the present invention, and FIG. 8 is a perspective view of an electrical box of the outdoor unit of the air conditioner according to Embodiment 3 of the present invention. 7 and 8, the first opening hole 16 provided in the heat radiating duct partition plate 17 and the second opening hole 18 provided in the heat radiating duct 13 are formed into a small round hole shape. Yes.

  The total area of the first opening hole 16 and the second opening hole 18 is arranged so as not to become small. As a result, the individual opening areas of the first opening hole 16 and the second opening hole 18 are reduced, so that it is difficult for the mist to enter the first opening hole 16 and the second opening hole 18. Intrusion of mist from the hole 15 into the electrical box 11 can be prevented.

  As described above, in the present embodiment, the first opening hole provided in the heat radiating duct partition plate and the second opening hole provided in the heat radiating duct have a small round hole shape continuously arranged. Therefore, it is possible to provide an outdoor unit of an air conditioner that can prevent the mist from entering without reducing the heat dissipation efficiency of the heat generated inside the electrical box.

  As described above, the outdoor unit for an air conditioner according to the present invention can prevent mist from entering the interior of the electrical box, and therefore can be applied to uses of outdoor installation products other than air conditioners.

DESCRIPTION OF SYMBOLS 1 Outdoor unit main body 10 Electrical component 11 Electrical box 12 Heat sink 13 Heat sink duct 14 Heat sink plate 15 Inflow hole 16 First opening hole 17 Heat sink duct partition plate 18 Second opening hole 19 Heat sink hole

Claims (2)

The interior is divided into a blower chamber and a machine chamber by a partition plate, and the fan chamber is provided with a fan and a fan motor. The machine chamber houses refrigeration cycle components such as a compressor and a refrigerant pipe. In the outdoor unit of an air conditioner including an electrical box above, the electrical box includes a heat radiating plate that radiates heat generated from the electrical component, and a heat radiating duct that radiates heat from the electrical component, and the heat radiating duct. Has a first opening hole that directly guides heat radiation from the electrical box to the outside, and a second opening hole that releases heat from the first opening hole to the air blowing chamber side, An outdoor unit for an air conditioner, wherein an opening hole and the second opening hole are arranged so as to face each other, and the first opening hole and the second opening hole are shifted from each other. The outdoor unit for an air conditioner according to claim 1, wherein the first opening hole and the second opening hole have a circular shape.