KR100720757B1 - Air injector of heating and cooling system - Google Patents

Abstract

The present invention relates to an air injector of a heating and cooling device for preventing the inflow of condensation occurring on the surface of a heat exchanger of a cooling and heating device and improving the blowing efficiency.

To this end, the air injector of the air-conditioning apparatus of the present invention, the air injector of the air-conditioning apparatus for cooling or heating the introduced air, the air inlet, the air inlet and the air outlet is formed in the air outlet; A heat exchanger provided at a front portion of the inlet port to cool or heat the air introduced into the inlet port; A blowing fan provided to discharge air cooled or heated through the heat exchanger; And a blowing means for supplying air discharged through the blower fan to the room, and a lower part of the heat exchanger is further provided with a drip tray for receiving water falling from the surface of the heat exchanger. A drain for discharging the water received by the drip tray to the outside is further provided.

HVAC, injector, air, angle change, condensation

Description

Air Injector of Heating and Cooling System

1 is a front perspective view of an air injector of a heating and cooling device according to the present invention.

Figure 2 is a rear exploded perspective view of the lower case.

3 is a cross-sectional view taken along line AA ′ of FIG. 2;

4 is an enlarged view of the drip tray of FIG. 1.

5 is an enlarged view of a portion A of FIG. 2;

Figure 6 is a cross-sectional view of the air injector of the conventional heating and cooling device.

<Description of the symbols for the main parts of the drawings>

1: main body

2: upper case

    21: inlet

    22: opening in the lower direction

    23: damper

    24: heat exchanger

    25: blower fan

    26: drip tray

    27: drain

3: lower case

    31: upper opening

    32: blower

    33: mounting groove

4: blowing means

    41: rotating plate, 411: pin

    42: angle change means

         421: blade, 422: first support plate, 422a: hole

         423: support shaft, 424 second support plate, 424a: long hole

The present invention relates to an air injector, and more particularly, to an air injector of a heating and cooling device, which can prevent the inflow of condensation occurring on the surface of a heat exchanger of a cooling and heating device and improve the blowing efficiency.

In general, the air conditioner is installed for the purpose of appropriately heating or cooling a certain space of the room according to the change of the outside temperature, and serves to create a more comfortable indoor environment for humans.

The air-conditioning unit is provided with a separate air circulation unit on the outside of the indoor unit installed on the ceiling to allow the outside air to flow into the interior, and then cools or heats the inlet air forcibly and supplies it to the room. .

6 is a schematic cross-sectional view of an air injector of a heating and cooling device according to the prior art.

Referring to the drawings, the air injector of the conventional heating and cooling device has a body 100 is installed on the ceiling 800, and the suction port 200 for sucking the outside air into the body 100 at the upper end of the body 100 Is formed.

In addition, a blower fan 300 is provided inside the body 100, which is a lower portion of the intake port 200, to allow the outside air to be sucked through the intake port 200 so as to discharge the sucked air downward.

In addition, a heat exchanger 400 for cooling or heating the air sucked into the body 100 is installed below the blower fan 300.

The lower end of the heat exchanger 400 is provided with a demister 500 for preventing the condensation generated on the surface of the heat exchanger 400 to enter the room, one side of the demister 500 is a demister ( Drain 600 for discharging the water received by the 500 to the outside is provided.

In addition, an air blower 700 through which cooled or heated air is discharged is formed at a lower portion of the demister.

Accordingly, the air volume and the wind speed sent to the room by the drive control of the blowing fan 300 is controlled.

When the blower fan 300 is driven by such a configuration, outdoor air is introduced into the body through the inlet 200, and the inflowed air is cooled or heated through the heat exchanger 400, and then the blower fan 300. Air volume and wind speed are controlled and discharged into the room through the vent.

However, the air conditioner according to the prior art is not a problem when heating the air, but when the air is cooled, dew condensation occurs in the heat exchanger due to a sudden temperature difference with the outside air, the dew condensation through the vents There is a problem that is sent directly to.

That is, the refrigerant or cooling water is supplied to the heat exchanger by a general air-conditioning device or an electric air-conditioning device to cool the outside air, and the air introduced from the outside loses heat to the heat exchanger while passing through the heat exchanger, where heat exchange is performed. If the external air reaches the heat exchanger surface and a sudden temperature change occurs, the relative humidity of the air becomes high.

Accordingly, condensation occurs in which water droplets form on the surface of the heat exchanger because the relative humidity of the air increases to reach the dew point.

The dew condensation generated on the surface of the heat exchanger is sent to the air inlet by the blowing fan is driven by the air flow into the room bar, if the air conditioner is installed in the workshop will interfere with the work of the indoor worker.

In order to prevent the dew condensation generated on the surface of the heat exchanger from entering the room, a demister is required and there is a problem in that the blowing efficiency is lowered by the installed demister.

An object of the present invention for solving the problems according to the prior art is that the dew condensation generated on the surface of the heat exchanger flows into the room by installing the heat exchanger at the forefront of the outdoor side and lowering the horizontally moved air by cooling or heating through the heat exchanger. It is to provide an air injector of a heating and cooling device to prevent.

In addition, the present invention can simplify the configuration by removing the condensation generated in the heat exchanger without installing a separate demister in the lower portion of the heat exchanger, and to prevent the blowing efficiency decrease by the demister It is to provide an air injector of a heating and cooling device.

In addition, the present invention is to provide an air injector of a cooling and heating device to enable a uniform blowing in the entire room by installing a blowing means that can adjust the wind direction of the air sent to the room in the air vents.

The air injector of the air conditioning and heating device according to an aspect of the present invention for solving the above technical problem is in the air injector of the cooling and heating device for cooling or heating the introduced air, the air inlet and the air inlet vent is discharged Formed body; A heat exchanger provided at a front portion of the inlet port to cool or heat the air introduced into the inlet port; A blowing fan provided to discharge air cooled or heated through the heat exchanger; And a blowing means for supplying air discharged through the blower fan to the room, and a lower part of the heat exchanger is further provided with a drip tray for receiving water falling from the surface of the heat exchanger. A drain for discharging the water received by the drip tray to the outside is further provided.
In addition, the air injector of the heating and cooling device according to an aspect of the present invention, the air injector of the cooling and heating device for cooling or heating the introduced air, the air inlet and the air inlet for the air outlet is formed; A heat exchanger provided at a front portion of the inlet port to cool or heat the air introduced into the inlet port; A blowing fan provided to discharge air cooled or heated through the heat exchanger; And a blowing means for supplying the air discharged through the blowing fan to the room, the front of the main body; A damper for adjusting the amount of air flowing into the inlet may be further provided.

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In another embodiment of the present invention, the blowing means includes a rotary plate rotating by a motor drive, and a plurality of blades provided around the lower portion of the rotary plate and the angle of which is changed in the angle changing means when the rotary plate rotates. It is configured by.

And, the angle changing means; A first support plate provided at the front of the blade and vertically connected to the blade and having a hole formed therein; a support shaft protruding downwardly of the rotating plate so as to pass through the hole of the first support plate; The second support plate is vertically connected and has a front and rear long hole, and a pin provided around the rotating plate to penetrate the long hole.

According to such a configuration, when the rotating plate rotates during the blowing, the long hole formed in the second supporting plate slides along the pin of the rotating plate in conjunction with the blade, and the blade is rotated about the supporting shaft, thereby changing the angle to uniformly blow the air throughout the room. Done.

The invention will become more apparent through the preferred embodiments described below with reference to the accompanying drawings. Hereinafter will be described in detail to enable those skilled in the art to easily understand and reproduce through embodiments of the present invention.

1 is a front perspective view of an air injector of a heating and cooling device according to the present invention, Figure 2 is a rear exploded perspective view of the lower case of the heating and cooling device of the present invention. 3 is a cross-sectional view taken along line AA ′ of FIG. 2.

Referring to the drawings, the present invention is the air injector of the cooling and heating device for cooling or heating the introduced air, the body 1, the heat exchanger 24, the blowing fan 25 and the blowing means (4) It is configured to include.

The main body 1 has an inlet 21 through which air is introduced at one side thereof, and an upper case 2 having a lower opening 22 formed at the other side thereof, and a lower opening portion of the upper case 2 ( The upper opening 21 is formed at the upper end portion so as to communicate with the 22, and the lower case 3 is formed with the air outlet 32 formed at the lower end to discharge the air flowing into the upper opening 21.

Looking at the configuration of the lower case 3, the upper end of the lower case 3 is coupled to the other lower portion of the upper case 2 is opened to communicate with the lower direction opening (22).

In addition, the lower end of the lower case 3 is formed with a mounting groove 33 recessed in the case inner direction so that the blowing means (4) can be mounted, the periphery of the mounting groove 33 for the discharge of air A plurality of blow holes 32 are formed.

The front of the upper case (2) of the main body (1) is further provided with a damper (23) for adjusting the amount of air flowing into the inlet (21), and the damper (23) is opened on one side of the damper (23) An opening control device (not shown) may be further provided to adjust the control.

Accordingly, the amount of air sucked into the main body 1 is controlled by the amount of damper 23 opening and the amount of driving of the blower fan 25.

The heat exchanger 23 is provided at the front of the upper case 2 to allow the air introduced into the suction port 21 to be cooled or heated. The heat exchanger 23 may be a tube in which general cooling water or hot water flows, and a refrigerant tube in which a refrigerant flows. have.

And, the lower side of the heat exchanger 24 is further provided with a drip tray 26 for receiving water falling from the surface of the heat exchanger 24, as shown in Figure 4, one side of the drip tray is received by the drip tray A drain 27 is provided to discharge the lost water to the outside.

On the other hand, the blowing fan 25 is provided inside the upper case 2 to discharge the air cooled or heated through the heat exchanger 24, to discharge the air to the lower case (3).

The blowing fan 25 is a fan that can change the direction of the air to 90 ° is used, for example a conventionally known sirocco fan may be used.

The blowing means 4 is the lower case (3) for controlling the flow and air flow rate of the air discharged from the upper case (2) is discharged through the air vent 32 of the lower case 3 is supplied to the room ) Is provided at the lower end, a plurality of rotating plate 41 is rotated by the motor drive, and the lower circumference of the rotating plate 41, the angle is changed in the angle changing means 42 during the rotation of the rotating plate 41 The blade 421 is configured to include.

5 is an enlarged view of a portion A of FIG. 2, referring to the angle changing means 42, the angle changing means is provided in front of the blade 421 to be vertically connected to the blade 421, and the hole 422a is formed. A first support plate 422 formed, a support shaft 423 protruding downward from the rotating plate 41 so as to pass through the hole of the first support plate 422, and a blade provided at the rear of the blade 421. The second support plate 424 vertically connected to the 421 and the front and rear long hole 424a is formed, and the pin 411 is provided around the rotating plate 41 to penetrate the long hole 424a.

In this configuration, when the rotating plate 41 is rotated, the long hole 424a formed at the rear of the blade 421 slides along the pin 411.

Accordingly, the front of the blade 421 is to change the angle through the rotation around the support shaft 423 to supply the air supplied through the air vent 32 in various directions.

Hereinafter, referring to FIGS. 1 to 5, the operation of the air injector of the air conditioner according to the present invention will be described.

First, the damper 23 provided in front of the upper case 2 is opened in accordance with a desired air volume, and the blower fan 25 is driven to allow the air to be sucked in through the open suction port 21.

The air introduced through the inlet 21 is cooled or heated while passing through the heat exchanger 24. When condensation occurs on the surface of the heat exchanger 24, the drip tray 26 provided under the heat exchanger 24 is provided. Condensation falls into the drip tray 26, and the condensation dropped into the drip tray 26 is discharged through the drain 27 provided on one side of the drip tray 26.

Accordingly, condensation generated on the surface of the heat exchanger 24 is prevented from flowing into the room, and thus, when installed in the workplace, the cause of disturbing the work of the worker is eliminated.

The air cooled or heated through the heat exchanger 24 is moved in the horizontal direction and then driven into the lower case 3 through the upper opening 31 of the lower case 3 by driving the blower fan 25. Descends.

Air introduced into the lower case 3 is discharged to the outside of the lower case 3 through the air vent 32.

Air sent to the outside of the lower case 3 is sent out through the blade 421 provided around the rotating plate 41, when the rotating plate 41 is rotated in conjunction with this of the blade 421 The angle is changed through the angle changing means 42 so that air is sent out in various directions.

That is, when the rotating plate 41 is rotated, the long hole 424a formed in the first support plate 422 slides along the pin 411.

Accordingly, the blade 421 is rotated around the support shaft 423 formed in the front, the angle of the blade 421 is changed by the rotation of the blade 421, the air discharged through the air vent 31 Blows in various directions.

As a result, it is possible to uniformly supply the cooled or heated air throughout the room as well as the underside of the injector.

As described above, according to the present invention, the condensation generated on the surface of the heat exchanger is introduced into the room by installing a heat exchanger and a drip tray in the innermost front of the upper case which is horizontally penetrated, and lowering the horizontally moved air by cooling or heating through heat exchange. It can be prevented to provide comfortable air-conditioning and has the advantage of eliminating the cause of work degradation.

In addition, according to the present invention, unlike the conventional injector, it is possible to remove the condensation generated in the heat exchanger without installing a separate demister in the lower part of the heat exchanger, thereby simplifying the configuration and by the demister The blowing efficiency can be prevented from being lowered to maximize the blowing efficiency.

In addition, the present invention has the advantage of allowing a uniform blowing through the room by providing a blowing means for adjusting the wind direction of the air sent to the room.

Although the present invention has been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that many different and obvious modifications are possible without departing from the scope of the invention from this description. Therefore, the scope of the invention should be construed by the claims described to include many such variations.

Claims (5)

delete In the air injector of the heating and cooling device for cooling or heating the introduced air, A main body 1 having a suction port 21 through which air is introduced and a blower port 32 through which air is discharged; A heat exchanger (24) provided at the front of the suction port (21) to cool or heat the air introduced into the suction port (21); A blowing fan 25 provided to discharge air cooled or heated through the heat exchanger 24; And It comprises a blowing means (4) for supplying the air discharged through the blowing fan 25 into the room, The lower side of the heat exchanger 24 is further provided with a drip tray 26 for receiving water falling from the surface of the heat exchanger 24, One side of the drip tray (26) is an air injector of the heating and cooling device, characterized in that the drain (27) for discharging the water received by the drip tray (26) to the outside. In the air injector of the heating and cooling device for cooling or heating the introduced air, A main body 1 having a suction port 21 through which air is introduced and a blower port 32 through which air is discharged; A heat exchanger (24) provided at the front of the suction port (21) to cool or heat the air introduced into the suction port (21); A blowing fan 25 provided to discharge air cooled or heated through the heat exchanger 24; And It comprises a blowing means (4) for supplying the air discharged through the blowing fan 25 into the room, At the forefront of the body (1); Air injector of the heating and cooling device, characterized in that further provided with a damper (23) for adjusting the amount of air flowing into the inlet (21). The method of claim 2 or 3, The blowing means (4) is; Rotating plate 41 which rotates by motor drive, A plurality of blades 421 provided around the lower portion of the rotating plate 41 and whose angles are changed by the angle changing means 42 when the rotating plate 41 is rotated; Air injector of the heating and cooling device characterized in that comprises a. The method of claim 4, wherein The angle changing means (42); A first support plate 422a provided at the front of the blade 421 and vertically connected to the blade 421 and having a hole 422 formed therein; A support shaft 423 protruding downward from the rotating plate 41 so as to pass through the hole of the first support plate 422; A second support plate 424 provided at the rear of the blade 421 and vertically connected to the blade 421 and having a front and rear long hole 424a; The air injector of the heating and cooling device, characterized in that consisting of a fin (411) provided around the rotating plate (41) so as to pass through the long hole (424a).

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