KR20000002229U - Indoor unit of detachable air conditioner - Google Patents

Abstract

The present invention relates to an indoor unit of a separate type air conditioner that forms guide vanes inside an indoor unit, and then installs two crossflow fans having different capacities to control airflow to increase natural cooling and increase cooling efficiency. Inside the indoor unit, a guide vane 26 and an evaporator 22 disposed between the upper duct 24 and the lower duct 28 to provide a flow passage between the upper discharge port 30 and the lower discharge port 30 '. First and second cross-flow fans 40 and 40 'are provided to pressurize the cold air passing through the upper discharge port 30 and the lower discharge port 30' to be discharged into the room.

Description

Indoor unit of detachable air conditioner

The present invention relates to an indoor unit of a separate air conditioner, and more specifically, to form a guide vane in the interior of the indoor unit, and then install two crossflow fans of different capacities to adjust the air flow to induce natural convection cooling efficiency It relates to an indoor unit of a detachable air conditioner that can increase.

In general, the air conditioner is to maintain the optimum temperature and humidity according to all climatic conditions and the indoor environment, and a humidifier to maintain the humidity properly, including a cooling device and a heating device that cools or warms the indoor air. And a ventilator for exhausting indoor air to the outside.

Among them, the cooling device uses the phenomenon of absorbing the heat of the surroundings when the liquid evaporates to perform the cooling operation. In addition to the cooling operation, the cooling operation is also performed. The cooling device having such a function is composed of a compressor for compressing the refrigerant into a gas of high temperature and high pressure, a condenser for liquefying the compressed high temperature and high pressure refrigerant, and an evaporator for evaporating the refrigerant expanded by the expansion valve. Cooling air heat-exchanged while passing through the evaporator is forcibly blown to the room where cooling is required by the blower.

These cooling devices can be divided into various types according to the place of use, such as industrial, commercial and general household use. In general, a separate type air conditioner mainly installed in a living room of a sales office or a general home is divided into an outdoor unit and an indoor unit. The outdoor unit corresponds to a compressor for compressing a refrigerant and a condenser for condensing the refrigerant. The outdoor unit is installed on the roof or outside of a balcony due to noise and heat emission. The indoor unit has a structure as shown in FIG. 1 as a part for evaporating the refrigerant sent from the condenser and supplying it to the room.

1 is a side cross-sectional view schematically illustrating an indoor unit 10 constituting a conventional separate air conditioner, and an evaporator 12 is disposed at an angle inclined at a predetermined angle in a lower portion thereof, and is located at an upper portion of the evaporator 12. The centrifugal fan 14 is arranged. Therefore, the air introduced by the rotation of the centrifugal fan 14 is cooled by heat exchange while the refrigerant introduced from the outdoor unit is evaporated while passing through the evaporator 12, and the cooled air is cooled to the room through the discharge port 16. Supplied.

In the indoor unit of a conventional split air conditioner having such a configuration, severe noise is generated when the centrifugal fan rotates at high speed, and since most of the cold air supplied to the room through the discharge port is directed toward the ceiling, the cold air is evenly distributed throughout the space. It takes a lot of time and the power consumption is increased.

The present invention devised to solve this problem is to install a guide vane in the interior of the indoor unit, and then install a cross-flow fan in the upper and lower spaces of the guide vane to minimize noise, It is an object of the present invention to provide an indoor unit of a separate air conditioner that can be quickly dispersed in the space by inducing natural convection in the process of supplying cold air to the room by setting the capacity of the crossflow fan differently.

1 is a cross-sectional view showing a conventional indoor unit,

2 is a cross-sectional view showing an indoor unit according to the present invention,

Figure 3 is a perspective view showing the configuration of the crossflow fan employed in the present invention,

Figure 4 is a sectional view showing a state of use of the indoor unit according to the present invention.

♣ Explanation of symbols for main part of drawing ♣

20: Indoor 22: Evaporator

26: guide vane 30, 30 ': upper and lower discharge ports

40, 40 ': First and second crossflow fans 42: Motor

An object of the present invention is to provide a separate air conditioner including an outdoor unit having a compressor and a condenser, and an indoor unit having an evaporator with which heat is cooled during the evaporation of the refrigerant flowing from the condenser to cool the surrounding air. And guide vanes disposed between the and lower ducts to provide flow passages between the upper and lower discharge ports, and first and second cross-flow fans for feeding cold air passing through the evaporator into the room through the upper and lower discharge ports. It is achieved by the indoor unit of the separate air conditioner.

Hereinafter, with reference to the accompanying Figures 2 to 4 will be described in detail the indoor unit of the separate type air conditioner according to a preferred embodiment of the present invention.

Figure 2 is a cross-sectional view showing the indoor unit according to the present invention, Figure 3 is a perspective view showing the configuration of the crossflow fan employed in the present invention, Figure 4 is a cross-sectional view showing a use state of the indoor unit according to the present invention.

First, as shown in FIG. 2, in the preferred embodiment of the present invention, instead of a large-capacity centrifugal fan, two centrifugal fans having different capacities may be used to induce natural convection. For this purpose, the ejection openings were divided into two using guide vanes. That is, guide vanes 26 were formed between the upper duct 24 and the lower duct of the indoor unit 20 and partitioned into two flow paths, and then the cross flow fans 40 and 40 'were provided in these passages, respectively.

Here, the capacity of the first crossflow fan 40 disposed in the flow path between the upper duct 24 and the guide vane 26 is set large, while in the flow path between the lower duct 28 and the guide vane 26. The capacity of the second cross flow fan 40 'is smaller than that of the first cross flow fan 40, so that the cool air cooled while passing through the evaporator 22 is discharged through the two discharge ports 30 and 30'. To be discharged.

3 shows a crossflow fan 40 employed in the present invention. Typically, the crossflow fan 40 is composed of a plurality of straight blades and is fixed to the motor shaft 44 by the fusible coupling 46 to suck air while being rotated during operation of the motor 42. That is, since the crossflow fan 40 has a vane made of a plurality of vanes curved in the rotational direction, there is no suction flow in the axial direction and an inflow is generated in a plane perpendicular to the vane axis.

4 is a cross-sectional view schematically showing a process of cooling the room using the indoor unit 20 according to the present invention. When the indoor unit 20 of the present invention needs to be installed and operated in the indoor space 50 that requires cooling, the cold air that has been compressed by the first crossflow fan 40 follows the direction of the arrow P through the upper discharge port 30. On the other hand, the cold air pressurized by the second cross flow fan 40 'is introduced along the arrow P' direction through the lower discharge port 30 ', so that natural convection can be induced to cool the room evenly.

That is, the cool air introduced along the arrow P by the rotation of the first crossflow fan 40 is sent to the ceiling and is introduced along the arrow P 'by the rotation of the second crossflow fan 40'. The cold air is directed to the bottom of the indoor space 50 and sent to the bottom to cool the entire space evenly.

According to the present invention described above, since the cross flow fan is installed in the upper and lower spaces of the guide vanes installed inside the indoor unit, the noise is reduced to enable the quiet operation. In the process of supplying natural convection can be quickly distributed into the space, so the entire space is cold within a short time has the advantage of reducing the power consumption and cooling efficiency.

Claims (2)

In a separate air conditioner comprising an outdoor unit having a compressor and a condenser, and an indoor unit having an evaporator 22 that cools the surrounding air by heat-exchanging during the evaporation of the refrigerant flowing from the condenser, A guide vane 26 disposed between the upper duct 24 and the lower duct 28 to provide a flow passage between the upper discharge port 30 and the lower discharge port 30 '; It characterized in that it comprises a first and second cross-flow fan (40, 40 ') for pumping the cold air passing through the evaporator 22 to be discharged into the room through the upper discharge port 30 and the lower discharge port (30'). Indoor unit of detachable air conditioner. The method of claim 1, Separately set air conditioner, characterized in that the capacity of the first and second cross-flow fan 40, 40 'is set differently, the capacity of the first cross-flow fan 40 is larger than the capacity of the second cross-flow fan 40' Indoor unit.