JP2007017012A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner that prevents hot air blown out of an outdoor unit from reaching neighborhoods or passersby and causing discomfort, especially during the summer, or killing plants in flower beds. <P>SOLUTION: The outdoor unit of the air conditioner is provided with a heat exchanger 3, a fan 2, and a front grille 7. The front grill 7 has a sufficiently greater area than the fan 2 and the air resistance of the front projection part of an air outlet 12 is made greater than that of the surrounding portion, whereby the air conditioner that prevents hot air blown out of the outdoor unit from reaching neighborhoods or passersby and causing discomfort, especially during the summer, or killing plants in flower beds, is provided. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an air conditioner, and more particularly to a configuration of a front grill of an outdoor unit.

  The structure of the conventional outdoor unit of an air conditioner has a structure as shown in FIG. 3 (see, for example, Patent Document 1).

The configuration of FIG. 3 is an outdoor unit of an air conditioner having a vertical compressor 32, a heat exchanger 31, a fan 30 and an outer box 33 surrounding them, and a front grille 34 is in contact with the front side of the outer box. The front grille 34 is arranged so that the gap between the fan 30 and the front grille 34 is a distance H that does not hit the fan 30 even if the front grille 34 is bent. It suffices if it is a range that covers the outlet.
JP 2001-153400 A

  However, in the conventional configuration, the air blown by the fan 30 is distributed almost in the area of the air outlet, so the wind speed is high, and hot air reaches the neighbors and passersby, especially in the summer, making it unpleasant. Or had the harmful effect of withering the plants in the flowerbed. In order to prevent this, even if the blowing direction is up, another problem arises in that the thickness of the main body increases due to the main body structure, and leaves and snow accumulate inside the main body.

  The present invention solves the above-described conventional problems, and an object of the present invention is to provide an air conditioner that reduces the blown air speed of a fan without greatly changing the configuration of the main body.

  In order to solve the conventional problems, an air conditioner of the present invention is provided with a front grille sufficiently larger than the fan area on the front surface of a heat exchanger and an outdoor unit body of an air conditioner containing a fan, The front grille is composed of a front surface portion of the air outlet, which is a substantially front projection portion of the air outlet, and an outer portion other than that, and the airflow resistance of the front surface portion of the air outlet is larger than the airflow resistance of the outer portion.

  As a result, the air blown from the fan is blown out at a low wind speed almost uniformly from the entire front grille having an area sufficiently larger than the fan.

  INDUSTRIAL APPLICABILITY The present invention can provide an air conditioner that is free from adverse effects such as an unpleasant feeling caused by hot air blown from an outdoor unit to a neighbor or a passerby in the summer, and a plant in a flower bed withered.

The present invention relates to an outdoor unit of an air conditioner in which a heat exchanger and a fan are housed in an air passage connecting only a back surface of a main body or a suction port provided on the back surface and a side surface and an air outlet provided on the front surface. There is a main body, and a front grille that is sufficiently larger than the fan area is provided in front of the main body, and the front grille is constituted by a blower outlet front face portion of a substantially front projection portion of the blower outlet and other outer parts, and the blower outlet The opening ratio of the front surface portion is made smaller than the opening ratio of the outer shell portion, a ventilation path is provided between the outer shell portion of the front grille and the outdoor unit main body portion of the air conditioner, and the outer peripheral portion of the outer shell portion In this case, by closing the space between the front grille and the outdoor unit body of the air conditioner, the blowout air from the fan blows out almost uniformly from the entire front grille having an area sufficiently larger than the fan at a low wind speed. And in the summer Yukito to have arrived hot air blown from the outdoor unit, or to the unpleasant thought, it is possible to provide an air conditioner with no adverse effects, such as kill the flower beds of the plant.

  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)
FIG. 1 is a cross-sectional 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-conditioning apparatus according to Embodiment 1 of the present invention.

  In FIG. 1, in the outdoor unit 1 of the air conditioner provided with the suction inlet 11, the vertical compressor 4, the heat exchanger 3, the fan 2, the blower outlet 12, and the outer box 5 surrounding them, the front grill 7 Is provided in the depth direction from the front side of the outdoor unit main body 10 with a ventilation path 9, and the front grille 7 occupies most of the front surface of the outdoor unit 1. An orifice 6 surrounds the fan 2, and the downstream end of the orifice forms an outlet 12, and a motor 8 drives the fan 2.

  Further, the opening ratio of the lattice portion of the front grille 7 is within a range where the finger does not touch the fan 2 from the outside in the outer portion 7B which is a portion other than the blower outlet front surface portion 7A which is a substantially front projection portion of the blower outlet 12. Maximum. On the other hand, the opening ratio is made smaller in the blower outlet front surface portion 7A.

  In the outer peripheral portion of the outer shell portion 7B of the front grill 7, the front grill 7 and the outdoor unit main body outer box 5 of the air conditioner are closed with a closing material 13.

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

  A part of the blown air from the fan 2 passes through the front face 7A of the front grill 7 and blows out, and the rest passes through the ventilation path 9 and diffuses in the radial direction. It passes and is blown out.

Here, if the opening ratios of the air outlet front portion 7A and the outer shell portion 7B are the same, most of the blown air from the fan passes through the air outlet front portion 7A. Here, if the air volume is Q and the diameter of the air outlet 12 is D, the area of the air outlet front surface portion 7A is substantially equal to the front projection portion of the air outlet 12, so that the air blowing speed is Q / 0.25πD ² .

On the other hand, in Embodiment 1 of the present invention, the opening ratio of the front surface portion 7A of the outlet is smaller than that of the outer portion B, and the ventilation resistance is increased, so that the blowing wind speed also flows to the outer portion 7B. If the aperture ratio is appropriately selected, the wind speeds of the front surface portion 7A of the air outlet and the outer portion B can be made substantially equal. At this time, when the area of the front grille 7 according to the present invention is S, the blown air speed is Q / S, and the blown air speed is reduced to 0.25πD ² / S compared to the conventional case.

  In FIG. 2, the front surface portion 7A of the air outlet has a circular shape that is substantially the same as that of the air outlet 12, but the effect of the present invention can be maintained even if the front surface portion 7A has a square shape with substantially the same area due to a design requirement.

  Further, a small circular plate or the like is often arranged at the center of the front surface of the air outlet in FIG. 2 in order to prevent the backflow that occurs at the center of the fan. The impact on is negligible.

Further, in the first embodiment, the ideal state is selected in which the wind speeds of both the air outlet front surface portion 7A and the outer shell portion B are the same, but the same effect can be obtained if the maximum wind speed portion is decelerated even if there is a difference in wind speed. Needless to say to play.

  As described above, the air conditioner according to the present invention includes a heat exchanger in an air passage connecting only a back surface of the main body or a suction port provided on the back surface and a side surface and an air outlet provided on the front surface, There is an outdoor unit main body of an air conditioner that houses a fan, and a front grill that is sufficiently larger than the fan area is provided on the front surface of the outdoor grill. An air passage is formed between the outer portion of the front grille and the outdoor unit main body of the air conditioner. And in the outer periphery of the outer shell, the space between the front grill and the outdoor unit main body of the air conditioner is closed, so that the blowout air from the fan has a sufficiently larger area than the fan. Almost uniformly from Because the hot air blown out at the wind speed and blown out from the outdoor unit to the neighbors and passersby in the summer, it can provide an air conditioner that does not cause unpleasant feelings and does not cause harmful effects such as withering the plants in the flower bed, Widely applicable to air conditioner outdoor units.

1 is a cross-sectional view of an outdoor unit for an air conditioner according to Embodiment 1 of the present invention. The front view of the outdoor unit of the air conditioner in Embodiment 1 of this invention Cross section of a conventional air conditioner

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outdoor unit 2 Fan 3 Heat exchanger 4 Compressor 5 Outer box 6 Orifice 7 Front grille 7A Front grille outlet front part 7B Front grille outer part 8 Motor 9 Ventilation path 10 Outdoor unit main body part 11 Inlet port 12 Outlet 13 Blocking material 31 Heat exchanger 32 Compressor 33 Outer box 34 Front grille

Claims (4)

There is a heat exchanger and an air conditioner outdoor unit main unit with a fan in the air passage that connects the suction port provided on the back of the main unit only, or on the back and side and the air outlet provided on the front. A front grille that is sufficiently larger than the fan area is provided on the front surface of the outdoor unit main body, and the front grille is constituted by a blower outlet front surface portion of a substantially front projection portion of the blower outlet and other outer shell portions, An air conditioner characterized in that the ventilation resistance of the front face of the outlet is greater than the ventilation resistance of the outer shell. 2. The air conditioner according to claim 1, wherein an opening ratio of the front face portion of the front grill is smaller than an opening ratio of the outer portion. The air conditioner according to claim 1, wherein an air passage is provided between the outer portion of the front grille and an outdoor unit main body of the air conditioner. The air conditioner according to claim 3, wherein a space between the front grill and an outdoor unit main body of the air conditioner is closed at an outer peripheral portion of the outer portion of the front grill.

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