JP2005069653A - Heat radiating plate fixing device for air conditioner outdoor unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat radiating plate fixing device for an air conditioner outdoor unit, for efficiently radiating heat generated by an electrical component housed in an electrical component box, and for preventing rainwater from penetrating into the electrical component box. <P>SOLUTION: A heat radiating duct having a heat radiating hole is provided for efficiently discharging the heat accumulated in the electrical component box to a blowing chamber. An approximately Z-shaped plate for preventing water penetration is provided on an opening of the heat radiating hole to prevent water from penetrating from the opening of the heat radiating hole into the electrical component box. <P>COPYRIGHT: (C)2005,JPO&NCIPI

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, as shown in FIGS. 8 to 10, the heat sink of the air conditioner outdoor unit is installed by storing a compressor 8, a refrigerant pipe (not shown), etc. in the main body of the outdoor unit 1 with a partition plate 5. The machine room 10 and the heat exchanger 3, the fan 6, the fan motor (not shown) and the like are separated. Above the machine room 10, there is an electrical box 11 that houses electrical components 12 for controlling the operation of the outdoor unit 1. The electrical equipment box 11 is arranged so as to protrude from the air blowing chamber 7 side, and a heat radiating plate 15 is arranged to dissipate the heat generated from the electrical component 12 to the air blowing chamber 7 side (see, for example, Patent Document 1). ).
JP-A-1-79539

  However, in the above conventional configuration, when an electrical component having a high calorific value, such as an inverter control component, is stored in the electrical box, a sufficient heat dissipation effect cannot be obtained, and the life of the electrical component is reduced. May cause malfunctions. Also, when heat dissipation holes are provided in the electrical box to enhance the heat dissipation effect, rainwater that has passed through the blower outlet on the air blower side or the heat exchanger enters the electrical box, leading to the failure of electrical components or the risk of electrical leakage. He had the problem of fear.

  The present invention solves such a conventional problem, and efficiently dissipates heat generated from the electrical components housed in the electrical box, and air that prevents rainwater and the like from entering the electrical box. An object of the present invention is to provide a heat sink fixing device for a harmony outdoor unit.

  In order to solve the above-described problems, the present invention divides the interior into a blower chamber and a machine chamber by a partition plate, and a fan and a fan motor are arranged in the blower chamber. In an outdoor unit of an air conditioner in which an refrigeration cycle part is housed and an electrical box is disposed above the machine room, the electrical box has a substantially Z-shaped protrusion to dissipate heat generated from the electrical part. The heat radiating plate fixed to the heat radiating plate mounting plate and a heat radiating duct having a heat radiating hole for efficiently releasing the heat stored in the electrical box to the air blowing chamber side, A substantially Z-shaped plate for preventing intrusion is provided.

  Moreover, the said heat sink is arrange | positioned so that the heat radiating hole provided in the heat radiating duct may overlap with the opening part.

  Also, the heat-dissipating duct has a high-temperature electrical component and a heat-dissipating plate in close contact with the heat-dissipating duct.

  Also, a plurality of grooves provided in the heat radiating plate are arranged in a heat radiating hole provided in the heat radiating duct so as to be perpendicular to the heat radiating hole, and the heat radiating plate is covered with the heat radiating plate so as to cover the heat radiating hole opening. Arrangement.

  As is apparent from the above, the present invention divides the interior into a blower chamber and a machine chamber by a partition plate, and a fan and a fan motor are arranged in the blower chamber, and a compressor, a refrigerant pipe, etc. In an outdoor unit of an air conditioner in which an refrigeration cycle part is housed and an electrical box is disposed above the machine room, the electrical box has a substantially Z-shaped protrusion to dissipate heat generated from the electrical part. The heat radiating plate fixed to the heat radiating plate mounting plate and a heat radiating duct having a heat radiating hole for efficiently releasing the heat stored in the electrical box to the air blowing chamber side, By providing a substantially Z-shaped plate for preventing intrusion, the heat generated from the electrical components housed in the electrical box can be efficiently radiated, and the effect of preventing rain water and the like from entering the electrical box can be obtained.

  In addition, by disposing the heat sink so as to overlap the opening of the heat dissipation hole provided in the heat dissipation duct, the heat generated from the electrical components stored in the electrical box can be efficiently radiated, In addition, it can prevent rainwater from entering.

  In addition, a high temperature electrical component in the heat radiating duct, and a heat radiating plate in close contact with the heat radiating duct, and a high temperature electric component in the radiating duct, and a heat radiating plate in close contact with the heat radiating duct Efficiently dissipates heat generated from the electrical components stored in the electrical box, prevents rainwater from entering the electrical box, and quickly evaporates water droplets attached to the heat dissipation duct due to the heat generated by the electrical components. An effect of minimizing the adhesion of water droplets to the surface can be obtained.

  Also, a plurality of grooves provided in the heat radiating plate are arranged in a heat radiating hole provided in the heat radiating duct so as to be perpendicular to the heat radiating hole, and the heat radiating plate is covered with the heat radiating plate so as to cover the heat radiating hole opening. Arrangement prevents rainwater and the like from entering, and increases the heat dissipation efficiency of the heat sink by convection that occurs from the machine room side to the air blower room side by rotating the fan of the air blower room along the grooves of the heat sink. it can.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
In FIG. 1 to FIG. 3, it is formed on a substrate 2 of an outdoor unit 1 of an air conditioner by a fixed heat exchanger 3 and a partition plate 5 provided between the heat exchanger 3 and the front plate 4. A refrigeration cycle component such as a compressor 8 and a refrigerant pipe 9 which are partitioned in the opposite direction of the blower chamber 7 by the blower chamber 7 in which the fan 6 and a fan motor (not shown) are arranged in a box and the partition plate 5. An electrical box 11 is disposed above the machine room 10 to be housed and further above the machine room 10. The electrical box 11 has a heat radiating plate 15 fixed to a heat radiating plate mounting plate 14 having a substantially Z-shaped protrusion 13 for radiating heat generated from the electrical component 12, and the electric component 12 is attached to the heat radiating plate 15. It is attached. Furthermore, in order to use the rotation of the fan 6 in the blower chamber 7 to convect the heat in the electrical box 11, the electrical box 11 is provided with a heat radiating duct 17 that protrudes toward the blower chamber 7 and has a heat radiating hole 16. doing. In addition, a substantially Z-shaped plate 18 is provided at the inlet of the heat radiating hole 16 so as to perform efficient waste heat and prevent water from entering the electrical box 11.

(Embodiment 2)
FIG. 4 shows that the size of the heat radiating plate 15 is increased by arranging the heat radiating plate 15 so that the heat radiating hole 16 provided in the heat radiating duct 17 covers the opening of the heat radiating hole 16 with the upper surface of the heat radiating plate 15. Heat dissipation efficiency is improved. In addition, since the heat dissipation hole 16 is covered with the upper surface of the heat dissipation plate 15, it is possible to prevent water from entering the electrical equipment box 11 from the outside.

(Embodiment 3)
FIG. 5 shows the efficiency of the heat generated from the electric component 12 housed in the electric box 11 by attaching the heat dissipating plate 15 to the heat dissipating duct 17 in close contact with the heat dissipating plate 15. Heat radiation, and prevent rainwater and the like from entering the electrical box 11 and quickly evaporate water droplets attached to the heat radiating duct 17 due to heat generated from the electrical component 12 to minimize the adhesion of water droplets to the electrical box 11. Can do.

(Embodiment 4)
6 and 7, the heat dissipating holes 16 provided in the heat dissipating duct 17 are arranged so that the grooves 19 of the heat dissipating plates provided in the heat dissipating plate 15 are perpendicular to the heat dissipating holes 16. 15, the heat sink 15 is arranged so as to overlap the opening of the heat sink hole 14, thereby preventing intrusion of rainwater and the like, and the rotation of the fan 6 disposed in the blower chamber 7 along the grooves 19 of the plurality of heat sinks. Thus, the heat dissipation efficiency of the heat sink 15 can be increased by convection caused by the pressure difference from the machine chamber 10 side to the air blowing chamber 7 side.

Plan sectional drawing of the outdoor unit of the air conditioner of the 1st Embodiment of this invention Front sectional drawing of the air conditioner outdoor unit of the 1st Embodiment of this invention Sectional drawing of the principal part of the heat radiating duct of the air conditioner outdoor unit of the first embodiment of the present invention Cross-sectional view of the main part of the heat dissipation duct of the second embodiment of the present invention Cross-sectional view of the main part of the heat radiation duct of the third embodiment of the present invention Cross section of the main part of the heat dissipation duct of the fourth embodiment of the present invention Radial duct main part perspective view of the fourth embodiment of the present invention Plan sectional view of an outdoor unit of a conventional air conditioner Front sectional view of an outdoor unit of a conventional air conditioner Cross-sectional view of the main part of the heat dissipation duct of a conventional air conditioner outdoor unit

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outdoor unit of air conditioner 2 Board | substrate 3 Heat exchanger 4 Front plate 5 Partition plate 6 Fan 7 Air blower chamber 8 Compressor 9 Refrigerant piping 10 Machine room 11 Electrical box 12 Electric component 13 Z-shaped protrusion 14 Radiation plate mounting plate 15 Radiation plate 16 Radiation hole 17 Radiation duct 18 Z-plate 19 Radiation plate groove

Claims (4)

The interior is divided into a blower chamber and a machine chamber by a partition plate, a fan and a fan motor are arranged in the blower chamber, refrigeration cycle parts such as a compressor and a refrigerant pipe are stored in the machine chamber, and the machine In an outdoor unit of an air conditioner in which an electrical box is disposed above the chamber, the electrical box is a heat sink fixed to a heat sink mounting plate having a substantially Z-shaped protrusion for dissipating heat generated from the electrical components. And a heat radiating duct having a heat radiating hole for efficiently releasing the heat stored in the electrical box to the air blowing chamber side, and a substantially Z-shaped plate for preventing water from entering is provided at the heat radiating hole opening. A heat sink fixing device for an air conditioner outdoor unit. 2. The heat sink fixing device for an air conditioner outdoor unit according to claim 1, wherein the heat sink is arranged so as to overlap an opening of a heat dissipation hole provided in the heat dissipation duct. 2. The heat sink fixing device for an air conditioner outdoor unit according to claim 1, wherein the heat dissipating duct has a high temperature electrical component and a heat dissipating plate in close contact with the heat dissipating duct. A plurality of grooves provided in the heat radiating plate are arranged in a heat radiating hole provided in the heat radiating duct so as to be perpendicular to the heat radiating hole, and the heat radiating plate is arranged so as to cover the heat radiating hole opening by the heat radiating plate. The heat sink fixing device for an air conditioner outdoor unit according to claim 1, wherein:

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