KR20030072960A - Ceiling suspension type air conditioner - Google Patents

Abstract

PURPOSE: A ceiling suspension type air conditioner is provided to allow air exchanged heat to flow evenly in the air conditioner. CONSTITUTION: An air conditioner includes a case(10) installed in a ceiling, and having an inlet(11) and an outlet(12) formed to face each other and to be connected with ducts; a blower(20) installed in the case near the outlet to introduce and discharge indoor air; a heat exchanger(30) installed in the case near the inlet to cool down the introduced indoor air; and a drain pan(40) installed on a lower end of the heat exchanger to support the heat exchanger, and collecting condensed air generated during heat exchange. The heat exchanger is placed asymmetrically in the drain pan to increase distance(L) between the blower and the heat exchanger so that distance(a) between the heat exchanger and a front end of the drain pan is larger than distance(b) between the heat exchanger and a rear end of the drain pan to allow the heat exchanger to be placed near the inlet. Cooled indoor air is allowed to spread out enough before being introduced into the blower, thereby.

Description

Ceiling duct type air conditioner {CEILING SUSPENSION TYPE AIR CONDITIONER}

The present invention relates to a ceiling duct type air conditioner, and more particularly, to a heat exchanger arrangement structure inside the ceiling duct type air conditioner.

In general, an air conditioner is a type of air conditioner that cools or purifies indoor air to circulate it in order to create a comfortable environment in the room. Such an air conditioner may be divided into an integral type in which a part constituting a cooling cycle is provided in one unit and a separate type in which two units are separately provided. On the other hand, the air conditioner may be classified into a wall-hung type that hangs the indoor unit on the wall, and an upper type that installs the indoor unit on the floor, and a ceiling type that hangs the indoor unit on the ceiling or installs the inside of the ceiling according to the product type.

Among them, the ceiling duct type air conditioner is a type of ceiling type air conditioner that supplies cooling air to various indoor spaces simultaneously through a plurality of ducts branched from one indoor unit installed in the ceiling. Such a ceiling duct type air conditioner includes an outdoor unit for compressing and liquefying refrigerant by incorporating a separate type, that is, a compressor and a condenser, and an indoor unit for cooling indoor air by evaporating the refrigerant by incorporating an evaporator. It is generally composed of units).

On the other hand, in recent years, the ceiling duct type air conditioners have been manufactured to be smaller in size due to the increased efficiency of the blower and improved heat exchanger structure. This reduction in size facilitates the installation of the ceiling duct type air conditioner and reduces the production price, but actually causes a problem in that its performance is slightly reduced.

That is, as the overall size is reduced, the distance between the heat exchanger and the blower is reduced, and the air flow through the heat exchanger is not fully developed. Therefore, the air flow itself becomes non-uniform and the relative air resistance occurs during the suction of the blower, so the amount of air finally discharged is substantially reduced.

The present invention has been made to solve the above problems, an object of the present invention is to provide a ceiling duct type air conditioner capable of uniform internal flow of heat exchanged air.

1 is a perspective view showing an indoor unit of a ceiling duct type air conditioner according to the present invention.

Figure 2 is a side cross-sectional view showing the heat exchanger arrangement in a typical indoor indoor air duct type air conditioner.

Figure 3 is a side cross-sectional view along the line I-I of Figure 1 showing the heat exchanger arrangement in the indoor unit of the ceiling duct type air conditioner according to the present invention.

Description of the main parts of the drawing

10 case 20 blower

11, 21: suction port 12, 22: discharge port

13 control module 30 heat exchanger

40: drain pan 41: drain pipe

In order to achieve the above object, the present invention is installed in the ceiling, the case having a suction port and the discharge port formed to face each other to be connected to the ducts; A blower installed inside the case and adjacent to the discharge port to suck and discharge indoor air; A heat exchanger installed inside the case and adjacent to the suction port to cool the sucked indoor air; And a ceiling duct type air conditioner installed at a lower end of the heat exchanger to support the heat exchanger and to collect the condensed water generated during the heat exchange. It provides a ceiling duct type air conditioner, characterized in that arranged asymmetrically in the fan.

More specifically, in the present invention, the distance between the heat exchanger and the front end of the drain pan is set larger than the distance between the rear end of the heat exchanger and the drain pan.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention in which the above objects can be specifically realized are described with reference to the accompanying drawings. In describing the present embodiment, the same name and the same reference numerals are used for the same configuration and additional description thereof will be omitted below.

In the present invention, since the outdoor unit of the ceiling duct type air conditioner has the same structure as the general outdoor unit of the separate type air conditioner, a detailed description thereof will be omitted. Hereinafter, the indoor unit structure of the ceiling duct type air conditioner will be described. If outlined with reference to the following.

1 is a perspective view showing an indoor unit of a ceiling duct type air conditioner according to the present invention.

The indoor unit of the ceiling duct type air conditioner is a box-shaped case 10 which is installed inside the ceiling as a whole, a blower 20 for forced suction and discharge of indoor air, and the case which is installed inside one side of the case 10. Installed on the other side of the inside of the 10 consists of a heat exchanger (30) for cooling the indoor air sucked by the blower (20).

More specifically, the case 10 protects the components such as the blower 20 or the heat exchanger 30 therein, and an inlet 11 connected to ducts (not shown) communicating with the room, respectively; The discharge port 12 is included. In addition, the control module 13 is attached to the outside of the case 10, the controller and related parts for controlling the operation of the blower 20 and the heat exchanger 30, etc. in accordance with the external input is located therein do.

The blower 20 is generally applied to a sirocco fan, which is a kind of centrifugal fan, and is formed of a housing that includes a suction port 21 and a discharge port 22, and a fan installed inside the housing. The discharge port 22 is directly connected to the duct (not shown) through the discharge port 12 of the case 10 so that the cooled air can be discharged directly to the duct. The blowers 20 may also be installed as many as necessary to ensure sufficient blow volume and in FIG. 1 two blowers are connected directly to one motor.

The heat exchanger 30 is an evaporator which is connected to a compressor and a condenser and a refrigerant pipe provided in an outdoor unit to form a refrigeration cycle. It cools the indoor air.

On the other hand, the bottom of the heat exchanger 30 is provided with a box-shaped drain pan (open drain pan 40) to open the upper surface to collect the condensate generated during the heat exchange process. In addition, the drain pan 40 supports the heat exchanger 40 by using the support member 41. The drain pan 40 is connected to the drain pipe 41 is in communication with the outside on one side, the drain pipe is connected to the drain pump for forcibly discharging the condensed water of the drain pan, although not shown.

As shown in FIG. 2, the heat exchanger 30 is generally disposed at the central portion of the drain pan 40. Accordingly, the distance a between the heat exchanger 30 and the front end (ie, the end adjacent to the blower 20) 42a of the heat exchanger 30 and the drain pan 40 It becomes equal to the distance b between the rear end (end end adjacent to the suction port 11) 42b of the 40. However, as described above, when the ceiling duct type air conditioner itself is manufactured small, the distance L between the blower 20 and the heat exchanger 30 is substantially reduced to reduce the heat exchanger 30. The air flow passed through is insufficient to develop sufficiently.

Therefore, in the present invention, as shown in FIG. 3, the heat exchanger 30 is asymmetrically arranged in the drain pan 40 so that the distance L between the blower and the heat exchanger is increased. More specifically, the distance a between the heat exchanger 30 and the drain pan front end 42a becomes greater than the distance b between the heat exchanger 30 and the rear end of the drain pan, Thus, the heat exchanger 30 is disposed adjacent to the suction port 11 side. As a result, even if the size of the indoor unit of the ceiling duct type air conditioner is reduced due to this arrangement, the maximum distance L is secured.

Referring to the operation of the ceiling-mounted air conditioner according to the present invention having such a configuration as follows.

First, when power is applied to the blower 20, the indoor air forcedly sucked through the inlet 11 formed at the rear of the case 10 is cooled while passing through the heat exchanger 30, and then flows a predetermined distance. It is introduced into the suction port 21 of the blower 20, and finally is introduced into a predetermined indoor space through the discharge port 22 of the blower and a separate duct to cool a plurality of indoor spaces. Due to the increased distance L in accordance with the present invention in this series of processes, the cooled indoor air can be fully developed before being sucked into the blower 20, thereby making the fluid itself uniform and providing a relative flow resistance. Is reduced.

Although several embodiments have been described above, it will be apparent to those skilled in the art that the present invention may be embodied in many other forms without departing from the spirit and scope thereof. Accordingly, the described embodiments are to be considered as illustrative and not restrictive, and all embodiments within the scope of the appended claims and their equivalents are included within the scope of the present invention.

Referring to the effect of the ceiling duct type air conditioner according to the present invention.

In the present invention, the heat exchanger is arranged symmetrically to ensure a sufficient distance between the blower and the heat exchanger. Therefore, even when the size of the air conditioner itself is reduced, the internal flow itself is made uniform due to sufficient development of air flow through the heat exchanger, and the relative air resistance is also reduced. As a result, even if the size is reduced by the present invention, there is an effect that the air conditioner's own blowing ability is kept constant.

Claims (2)

A case installed in the ceiling and having a suction port and a discharge port formed to face each other to be connected to the ducts; A blower installed inside the case and adjacent to the discharge port to suck and discharge indoor air; A heat exchanger installed inside the case and adjacent to the suction port to cool the sucked indoor air; And In the ceiling duct type air conditioner is installed at the bottom of the heat exchanger and includes a drain pan for supporting the heat exchanger and collecting the condensate generated during the heat exchange, And the heat exchanger is arranged asymmetrically in the drain pan such that the distance between the blower and the heat exchanger is increased. The method of claim 1, And the distance between the heat exchanger and the front end of the drain pan is greater than the distance between the rear end of the heat exchanger and the drain pan.