JP2008232585A - Floor-installed air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems that a conventional floor-installed air conditioner is constituted to have difficulty in improving the performance of an air circuit without changing the size of the air conditioner because the size of an indoor heat exchanger that can be installed is determined according to the height of an air guider, and further to have difficulty in enlarging a suction port of a front panel due to restrictions on a design surface. <P>SOLUTION: Two independent air circuits are formed at the front and rear in a casing by providing a heat exchanger; a blowoff grille provided in the front panel to blow air which passes through the heat exchanger; a suction grille provided in the front panel; a back face suction part provided in the back face; a bottom face suction part provided in a bottom plate; a front face turbofan which sucks air from the suction grille and the bottom face suction part and blows off air to the heat exchanger; a back face turbofan which sucks air from the back face suction part and the bottom face suction part and blows off air to the heat exchanger; and a motor for driving the front face turbofan and the back face turbofan. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a floor-mounted air conditioner.

  Conventionally, what was described in patent document 1 is known as a structure of the wind circuit in a floor type air conditioner. Hereinafter, the structure of the wind circuit in the conventional floor-mounted air conditioner will be described with reference to FIG.

  FIG. 5 is a perspective view of a conventional floor-mounted air conditioner. The front portion is provided with an upper blowing grill 101, a central front panel 102, and a lower suction grill 103. The air taken in from the suction grill 103 is blown into the room from the blowing grill 101. . Further, the front portion, the side plates 104 and 105, the top plate 106, the bottom plate 107, and the rear plate 108 constitute a casing of a floor-mounted air conditioner.

FIG. 6 is a vertical sectional view of a conventional floor-mounted air conditioner. An air guider 109, a motor 110, and a fan 111 for configuring a wind circuit are installed inside the casing. In the upper part of the air guider 109, an indoor heat exchanger 114 is installed obliquely so that the height is maximized.
JP-A-6-101866

  However, the conventional structure has the following problems.

  That is, when the height of the air conditioner is constant, the height of the indoor heat exchanger that can be mounted is determined by the height of the air guider, so if you try to improve the air conditioning performance while keeping the height of the air conditioner, There is no choice but to increase the number of heat exchangers in the indoor heat exchanger.

  Further, if the area of the suction port provided in the suction grill 103 is increased, the amount of air to be sucked in increases, but it is difficult to increase the area of the suction port due to design limitations.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to maintain or improve the air conditioning performance while reducing the area of the suction port provided in the suction grill.

  In order to solve the above problems, a floor-type air conditioner of the present invention is provided with a heat exchanger, a blow-off grill provided on the front panel for blowing air passing through the heat exchanger to the outside, and a back face. A rear suction portion, a bottom suction portion provided on a bottom plate, a front turbofan for sucking air from the suction grille and the bottom suction portion, and sending the air to the heat exchanger, the rear suction portion, and the A rear turbofan for sucking air from a bottom suction portion and sending the air to the heat exchanger, and a motor for driving the front turbofan and the rear turbofan are provided.

  According to the floor-mounted air conditioner of the present invention, since the entire area of the suction port can be secured even if the area of the suction port provided in the suction grill of the front panel is reduced, the performance of the wind circuit is maintained or improved. Can be achieved.

  The first invention includes a heat exchanger, a blow-off grill provided on a front panel for blowing air passing through the heat exchanger, a suction grill provided on the front panel, and a back suction portion provided on the back surface. A bottom suction portion provided on a bottom plate, a front turbofan for sucking air from the suction grille and the bottom suction portion, and sending the air to the heat exchanger, the back suction portion and the bottom suction portion And a motor for driving the front turbofan and the rear turbofan for sucking air from the rear and sending the air to the heat exchanger.

  Thereby, even if the area of the suction port of the suction grill is reduced, the entire area of the suction port can be secured, so that the performance of the wind circuit can be maintained or improved. In addition, by adopting a turbofan, it is not necessary to use an air guider, so that cost can be reduced. Furthermore, since the suction port area of the front portion that greatly affects the design can be reduced, the degree of freedom in design selection increases.

  In a second aspect based on the first aspect, the rear turbofan and the front turbofan have different blade heights. As a result, the amount of air blown to the heat exchanger located in the upper part of the wind circuit can be adjusted in the front and rear, and an appropriate wind speed distribution is given to the upper heat exchanger, so without changing the height of the air conditioner The performance of the wind circuit can be improved.

(Embodiment 1)
Embodiment 1 of the present invention will be described below with reference to the drawings.

  FIG. 1 is an exploded perspective view of a floor-mounted air conditioner according to the present embodiment. As shown in FIG. 1, the floor-mounted air conditioner according to the present embodiment includes a front portion composed of a blowout grill 1, a front panel 2, and a suction grill 3, side plates 5 and 6, and a top plate 4. The casing is constituted by the bottom plate 7 and the rear plate 8.

  A partition plate 9, a motor 10, a rear turbofan 11, and a front turbofan 12 are arranged inside the housing, and this configuration forms two independent front and rear wind circuits separated by the partition plate 9. The

  FIG. 2 is a rear perspective view of the floor-mounted air conditioner according to the present embodiment. FIG. 3 is a view of the bottom plate 7 as seen from the back side. As shown in FIGS. 2 and 3, a back suction portion 13 is provided on the back surface. The bottom plate 7 is provided with a bottom suction portion 14 for the rear turbofan 11 and a bottom suction portion 15 for the front turbofan 12.

  FIG. 4 is a vertical sectional view of the floor-mounted air conditioner. As shown in FIG. 4, a rear turbofan 11 and a front turbofan 12 are arranged at a lower portion of the wind circuit, separated by a partition plate 9.

  In this manner, the floor-standing air conditioner of the present embodiment has two independent wind circuits on the front and rear sides.

  According to the present embodiment, the rear plate 8 is provided with the back surface suction portion 13 and the bottom surface 7 is provided with the bottom surface suction portions 14 and 15, so the area of the suction port of the suction grill 3 provided on the front panel 2 can be reduced. Even if the number is reduced, it is possible to maintain or increase the entire area of the suction port.

Further, the rear turbofan 11 and the front turbofan 12 have the same blade diameter and different blade height, and the difference in blade height allows heat exchange from the two wind circuits. The amount of air sent to the container 16 is adjusted.

  Thus, in the case of a conventional heat exchanger arrangement method, since the air volume to the lower part of the heat exchanger is small, it has been difficult to sufficiently exhibit the heat exchanger performance, but the floor-standing type of the present embodiment According to the air conditioner, since the wind can be supplied to the heat exchanger with a more appropriate wind speed distribution, the performance of the wind circuit is improved.

  In the present embodiment, the diameter of the blades of the rear turbofan 11 and the diameter of the blades of the front turbofan 12 are the same. However, if the height of the air conditioner does not need to be changed, the blades Even if the diameters are slightly different, the same effect can be obtained, and the present embodiment is not limited to this.

  The present invention can be applied to a floor-mounted air conditioner. Two turbofans for front and back are arranged, suction portions are provided on the back and bottom, and two independent wind circuits are provided on the front and rear sides. By forming, it is possible to maintain or improve the performance of the wind circuit even if the area of the suction port provided in the suction grill is reduced.

1 is an exploded perspective view of a floor-mounted air conditioner according to Embodiment 1 of the present invention. 1 is a rear perspective view of a floor-mounted air conditioner according to Embodiment 1 of the present invention. The figure which looked at the baseplate 7 by Embodiment 1 of this invention from the back side Sectional drawing of the floor-mounted air conditioner by Embodiment 1 of this invention A perspective view of a conventional floor-mounted air conditioner Sectional view of a conventional floor-mounted air conditioner

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outlet grill 2 Front panel 3 Suction grill 4 Top plate 5 Side plate 6 Side plate 7 Bottom plate 8 Back plate 9 Partition plate 10 Motor 11 Back surface turbo fan 12 Front surface turbo fan 13 Back surface suction part 14 Bottom surface suction part 15 Bottom surface suction part 16 Heat Exchanger

Claims (2)

A heat exchanger, a blow grill provided on the front panel for blowing air passing through the heat exchanger, a suction grill provided on the front panel, a back suction section provided on the back, and a bottom plate A front-surface turbofan for sucking air from the bottom suction portion, the suction grille and the bottom suction portion, and sending the air to the heat exchanger; and sucking air from the back suction portion and the bottom suction portion A floor-mounted air conditioner comprising a rear turbofan for sending air to the exchanger, and a motor for driving the front turbofan and the rear turbofan. The floor-mounted air conditioner according to claim 1, wherein the rear turbofan and the front turbofan have different blade heights.

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