KR20090041806A - A ceiling-mounted type air conditioner - Google Patents

Abstract

A ceiling type air-conditioner is provided to discharge the air smoothly by using a stabilizer having a curved surface in order to push the air discharged from the blower fan. A ceiling type air-conditioner comprises a casing(100) including at least one side exposed to the outside, an intake part(120) which is formed on one side of the exposed part of the casing and inhales the air, a blower fan(300) blowing the air inhaled through the intake part, a heat exchanger(200) which is positioned between the intake part and the blower fan and performs heat-exchange of the air blown by the blower fan, a discharging part(130) which is formed on the other side of the exposed part of the casing and discharges the heat-exchanged air, and a stabilizer(500) having a rib shape protruded toward the blower fan.

Description

Ceiling type air conditioner {A CEILING-MOUNTED TYPE AIR CONDITIONER}

The present invention relates to a ceiling air conditioner. More specifically, the present invention relates to a single-discharge type ceiling type air conditioner that sucks air from one side and discharges air to the other side.

An air conditioner is a device that controls a room temperature through heat exchange between refrigerant flowing through an evaporator of a refrigeration cycle and room air using a refrigeration cycle. The air conditioner is a separate type in which the evaporator is separately manufactured by an integrated air conditioner in which other parts of the refrigeration cycle, that is, a condenser and a compressor, are manufactured in one unit, and an indoor unit including the evaporator and an outdoor unit including other parts of the refrigeration cycle. It is divided into air conditioner.

Separate air conditioners are also classified according to the installation type of the indoor unit. In general, an indoor air conditioner is divided into an air conditioner installed on the floor of a room, a wall-mounted air conditioner that hangs on a wall of an indoor room, and a ceiling air conditioner installed in a space between a ceiling and a ceiling finish.

Ceiling type air conditioners are installed on the ceiling of the indoor space, the use and development of the recent increase due to the advantage that can be used more widely and the interior space of the interior more quickly. The ceiling air conditioner includes a blowing fan, a heat exchanger, and the like in a substantially hexahedral space. Only one surface of the ceiling air conditioner is exposed to the outside, and thus a suction part for sucking air and a discharge part for discharging air exchanged with the heat exchanger are disposed on one surface. It is common to have one to four discharge parts, and when it has one discharge part, it is used in the case where it is installed in an entrance door so that external air may not flow in. In addition, in the case of having two discharge parts, it is installed in the corner of the indoor space to discharge the heat exchanged in two directions. In addition, in the case of having four discharge parts, the discharge parts are located on four sides of the rectangular exposed surface and discharge the air heat-exchanged in four directions. When a ceiling air conditioner has four discharge parts, it is generally installed in the center of an indoor space.

The blowing fan installed in the ceiling air conditioner forms a forced flow to promote the suction of air through the suction unit and the discharge of the heat-exchanged air through the discharge unit. At this time, the air blown to the discharge unit side by the blower fan is not discharged through the discharge unit can form a vortex around the blower fan. If vortex is formed around the blowing fan, there is a problem that the cooling performance of the ceiling type air conditioner is lowered and the noise is increased.

An object of the present invention is to provide a ceiling type air conditioner having a structure which prevents forced flow of air by the blower fan from being discharged through the discharge part and forms a vortex in the ceiling type air conditioner having one discharge part.

In addition, the present invention in consideration of the suction fluidity of the flow formed around the blowing fan, the air to be re-introduced into the blowing fan, to prevent the air from forming a vortex, a ceiling air conditioner having a structure that can reduce noise The purpose is to provide.

The present invention is formed on one side of the casing having at least one surface exposed to the outside, one side of the exposed surface of the casing, the air inlet, the blowing fan for flowing the sucked air through the suction, suction and blowing fan Located between the heat exchanger, the air flows by the blower fan is formed on the other side of the exposed surface of the casing, the first inclined surface and the suction side toward the discharge portion and the discharge side discharged heat exchanged air It provides a ceiling air conditioner comprising a rib-shaped stabilizer protruding toward the blowing fan, including a second inclined surface having a curved portion that changes in curvature toward the side. Through this configuration, the first inclined surface can push the air discharged from the blower fan toward the discharge part to prevent the generation of vortices, and the second inclined surface changes the flow direction of the air that has not been discharged through the discharge part to return to the fan. Can be reintroduced.

In another aspect of the present invention, a blower fan provides a ceiling air conditioner, characterized in that the cross flow fan (cross flow fan).

In another aspect of the present invention, the first inclined surface provides a ceiling air conditioner, characterized in that the smooth curved form. Through this configuration, it is possible to flow to the discharge portion along the gentle curved surface.

In still another aspect of the present invention, there is provided a ceiling air conditioner, wherein the inflection portion of the second inclined surface is 125% to 130% of the radius of the blowing fan. Through this configuration, it is possible to smoothly re-introduce the air not discharged through the discharge portion back to the blowing fan to reduce the noise.

Moreover, as another aspect of this invention, a stabilizer is a part which a 1st inclined surface and a 2nd inclined surface contact, and provides the ceiling air conditioner characterized by further including an apex part which is a smooth curved surface.

In another aspect of the present invention, the apex part provides a ceiling air conditioner, characterized in that it has an angle of 90 ° to 110 °.

In addition, as another aspect of the present invention, the stabilizer is located in front of the discharge portion, and provides a ceiling air conditioner, characterized in that protruding toward the blowing fan.

The ceiling air conditioner according to the present invention includes a stabilizer having a smooth curved surface capable of pushing the air discharged from the blowing fan, so that air can be smoothly discharged to the outside through the discharge portion.

In addition, in the ceiling air conditioner according to the present invention, by preventing the generation of vortices in the vicinity of the discharge portion, air can be smoothly discharged to the outside through the discharge portion.

In addition, the ceiling type air conditioner according to the present invention includes a stabilizer having a curved surface having a curved surface for changing the flow direction so that the air not discharged through the discharge portion can be re-introduced into the blowing fan, it is possible to improve the cooling efficiency have.

In addition, in the ceiling air conditioner according to the present invention, the position of the curved surface provided by the stabilizer is formed at a position suitable for re-introducing air into the blower fan and changing the flow direction, it is possible to reduce the noise generated when the air re-introduced have.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a view showing a ceiling air conditioner according to an embodiment of the present invention. The ceiling type air conditioner is located in the casing 100 and the casing 100 having an approximately rectangular parallelepiped shape, and the heat exchanger 200 and the casing 100 that exchange heat with the air introduced into the casing 100 from the outside. It includes a blowing fan 300 for blowing. The casing 100 is embedded in the ceiling of the building, and generally only one surface 110 facing the floor of the building is exposed to the outside. However, depending on the installation position of the ceiling type air conditioner, the shaving may be exposed outside the one surface 110 facing the floor of the building.

Since the casing 100 has a substantially rectangular parallelepiped shape, the one surface 110 has a substantially rectangular shape. On one side of the one side 110 is formed a suction unit 120 through which air is introduced into the casing 100, and on the other side of the one side 110, a discharge unit 130 through which air is discharged from the casing 100 to the outside. Is formed. Suction grill 122 for preventing a relatively large foreign matter is introduced into the suction unit 120 through the suction unit 120 to prevent the heat exchanger 200 and the blower fan 300 from driving and further cause a malfunction. ) Is installed. In addition, the discharge part 130 is provided with a discharge vane 132 for adjusting the direction in which the heat-exchanged air is discharged. The discharge vane 132 is rotatably installed to adjust an angle formed by the discharge vane 132 and the casing 100. By adjusting the angle of the discharge vane 132, the direction in which air is discharged can be adjusted. In addition, the degree of opening of the discharge unit 130 may be adjusted by adjusting the angle of the discharge vane 132. Since the amount of air blown to the discharge unit 130 by the blower fan 300 is almost constant, the narrower the area where the discharge unit 130 is opened, the faster the flow rate of air discharged through the discharge unit 130 and the oil pressure is increased. Heated air can flow to a higher distance from the ceiling air conditioner.

The heat exchanger 200 is installed inside the casing 100 to exchange heat with the air sucked from the suction unit 120. The heat exchanger 200 is positioned on the flow path of the air introduced through the suction unit 120 by the blowing fan 300 and discharged to the discharge unit 130. Preferably, the heat exchanger 200 is installed long so that both ends contact the back surface of the one surface 110 and the surface opposite to the one surface 110. The heat exchanger 200 is installed obliquely to widen the area of the heat exchanger 200 through which the air heat exchanges, that is, to maximize the size of the heat exchanger 200 installed in the limited space.

The air cooled at low temperature by heat exchange with the heat exchanger 200 flows to the discharge part 130 by the blower fan 300. In the embodiment, the blower fan 300 may be any type of fan as long as the blower fan 300 can form a flow through which the air is discharged through the crossflow fan or the discharge unit 130. The axial length of the blowing fan 300 is approximately equal to the length of one side (side parallel to the axial direction of the blowing fan) of the casing 100.

Air flowing by the blowing fan 300 is discharged in a tangential direction of the blowing fan 300. Therefore, the air discharged from the upper or lower portion of the casing 300 is difficult to be discharged to the outside through the discharge portion 130 formed on one surface 110 of the casing 300. Therefore, the ceiling type air conditioner has a rear guide 400 which guides the air discharged to the upper side to the discharge unit 130 in the casing 300. In addition, the ceiling type air conditioner pushes the air discharged to the lower side of the blower fan 300 to the discharge unit 130, and at the same time, the air discharged in the area difficult to push to the discharge unit 130 is returned to the blower fan 300. It is provided with a stabilizer 500 to be introduced.

2 is a view showing a cross-sectional shape of a stabilizer provided in a ceiling air conditioner according to an embodiment of the present invention. The cross-section of the stabilizer 500 is substantially triangular in shape, and includes a first inclined surface 510 and a blowing fan for pushing the air discharged from the blower fan 300 (shown in FIG. 1) to the discharge unit 130 (shown in FIG. 1). 300: a second to change the flow direction of the air so that the air discharged from the discharge fan 130 (shown in FIG. 1) but not discharged through the discharge unit 130 (shown in FIG. 1) flows back into the blowing fan 300 (shown in FIG. 1). It is a place where the inclined surface 520 and the first inclined surface 510 and the second inclined surface 520 meet, and includes an apex part 530 which is the part closest to the blowing fan 300 (shown in FIG. 1). .

The first inclined surface 510 guides the air discharged from the blower fan 300 (shown in FIG. 1) to flow into the discharge unit 130 (shown in FIG. 1). The first inclined surface 510 is inclined to face the discharge portion 130 (shown in FIG. 1) as a whole and is convex. Since the first inclined surface 510 is a convex shape as a whole, air flows along the first inclined surface 510, and air is separated from the first inclined surface 510 at a predetermined position to the discharge part 130 (shown in FIG. 1). Discharged. Since the first inclined surface 510 is entirely convex and there is no concave portion, the direction in which the first inclined surface 510 pushes air is substantially constant throughout the first inclined surface 510. That is, the flow direction of the air generally coincides, and since the flow direction does not differ by more than 90 °, no vortex occurs. Since no vortex occurs, air can be smoothly discharged through the discharge unit 130 (shown in FIG. 1).

In addition, the second inclined surface 520 is inclined in a direction opposite to the discharge unit 130 (shown in FIG. 1), and blows back the air remaining without being discharged through the discharge unit 130 (shown in FIG. 1). The flow direction is changed to re-introduce the flow back to FIG. 1. The second inclined surface 520 has a convex shape as a whole, but includes some concave sections. That is, since the second inclined surface 520 includes a concave section between the convex sections, the second inclined surface 520 includes an inflection section 525 in which the rate of change of the inclination changes. The inflection section 525 is located at a distance between about 125% and 130% of the radius of the blowing fan 300 (shown in FIG. 1) from the center of the blowing fan 300 (shown in FIG. 1). That is, a space of 25% to 30% of the radius of the blower fan 300 (shown in FIG. 1) is secured from the outer circumference of the blower fan 300 (shown in FIG. 1) to the inflection portion 525 of the second inclined surface 520. 20 to 25% of the space is a space that serves as a suction flow path by forming a suction flow so that air flows into the blower fan 300 (shown in FIG. 1), and 5% of the space is a space that flows out of the suction flow path. It is a space for changing the direction toward the suction flow path. While the suction flow path is sufficiently secured to allow air to flow into the blower fan 300 (shown in FIG. 1), the blower fan 300 includes a buffer region so that the flow out of the suction flow path flows back into the suction flow path again. 1) and the noise generated by the air hitting the casing 100 can be considerably reduced.

In addition, the government 530 is a portion where the first inclined surface 510 and the second inclined surface 520 meet, and are closest to the blowing fan 300 (shown in FIG. 1) in the stabilizer 500. An angle A of the government part 530, that is, an angle A formed by the first inclined surface 510 and the second inclined surface 520, has a value between 90 ° and 110 °. At this time, the angle A of the government 530 is the narrowest angle among the angles formed by the first inclined surface 510 and the second inclined surface 520 in the government 530. By limiting the angle A of the government portion 530 to an angle between 90 ° and 110 °, the flow is separated without separating the suction flow and the discharge flow. Therefore, the flow rate of the air discharged through the discharge unit 130 (shown in FIG. 1) may be increased.

3 is a view showing another example of a stabilizer provided in a ceiling air conditioner according to the present invention. The stabilizer 500 includes a first inclined surface 510, a second inclined surface 520, and a government 530. The space between the first inclined surface 510 and the second inclined surface 520 is an empty space. Accordingly, only one end of the second inclined surface 520, that is, one end opposite to the government unit 530, of the part of the stabilizer 500 is connected to the casing 100. Since the stabilizer 500 has such a shape, the entire volume of the stabilizer 500 can be reduced. Therefore, the weight of the stabilizer 500 can be reduced, and the material cost can be reduced during manufacturing.

1 is a view showing a ceiling air conditioner according to an embodiment of the present invention,

2 is a view showing an example of a stabilizer provided in a ceiling air conditioner according to the present invention;

3 is a view showing another example of a stabilizer provided in a ceiling air conditioner according to the present invention.

Claims (8)

A casing having at least one surface exposed to the outside; A suction part formed on one side of an exposed surface of the casing and into which air is sucked; A blowing fan for flowing air sucked through the suction unit; A heat exchanger disposed between the suction unit and the blower fan, wherein the air flowing by the blower fan is heat-exchanged; A discharge part which is formed at the other side of the exposed one surface of the casing and discharges heat-exchanged air; And And a rib-shaped stabilizer protruding toward the blower fan, including a first inclined surface facing the discharge portion and a second inclined surface facing the suction portion and having a curved portion that changes in curvature. Ceiling air conditioner. The method of claim 1, Blowing fan is a cross-flow fan (cross flow fan) characterized in that the ceiling air conditioner. The method of claim 1, The first inclined surface has a gentle curved shape. The method of claim 1, The inflexion of the second inclined surface is a ceiling air conditioner, characterized in that the distance from the center of the blowing fan is 125% to 130% of the radius of the blowing fan. The method of claim 1, The stabilizer is a portion where the first inclined surface and the second inclined surface contact each other, and further includes an apex part that is a smooth curved surface. The method of claim 5, The apex part is a ceiling air conditioner, characterized by having an angle between 90 ° and 110 °. The method of claim 5, The government is located in a position rotated approximately 28 degrees from one surface of the casing with respect to the center of the blower fan. The method of claim 1, The stabilizer is located in front of the discharge portion, the ceiling air conditioner, characterized in that protruding toward the blowing fan.

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