KR100360385B1 - The air conditioner attached a ventilation device - Google Patents

Abstract

The present invention relates to an air conditioner that can more comfortably change the indoor air-conditioning environment, and more particularly, comprising: a chassis means in which an inlet and an outlet are formed to allow indoor air to pass therethrough; A fan installed inside the chassis means to forcibly flow indoor air; Cut-off guide means provided between the suction port and the discharge port of the chassis means to partition the suction area and the discharge area of the fan; A flow path guide installed at an inner side of the chassis means that is the rear of the fan to guide the flow of indoor air and at the same time an inlet is formed so that outside air can be introduced with suction force generated when the fan is rotated on one surface; The present invention relates to an air conditioner having a ventilation device configured to include an air supply pipe connected to an outdoor side from an inlet of the flow path to the outside to introduce external air, thereby enabling a more comfortable air conditioning environment.

Description

The air conditioner attached a ventilation device

The present invention relates to an air conditioner that can more comfortably change the indoor air conditioning environment, and in particular, the ventilation device is configured to realize a more comfortable air conditioning environment by introducing the outside air into the room when the air conditioner is operating. An air conditioner provided.

Air conditioning is to control the temperature, humidity, cleanliness, and airflow of the residential area, and so far, air conditioning, which has been merely performing temperature control, is the majority.

However, in recent years, the thermal insulation and airtightness of buildings have been further developed to save energy, which makes it difficult to provide natural ventilation. As a result, the introduction of fresh outside air reduces the indoor air quality.

In order to reduce the deterioration of indoor air quality, an air conditioner that can purify indoor air by adding an air purifying function has appeared.

1 and 2 is an exploded perspective view and a side cross-sectional view showing the indoor unit of the wall-mounted air conditioner according to the prior art of the separate air conditioner to which the air purification function is added.

The indoor unit of the wall-mounted air conditioner according to the related art has a chassis 10 having an inlet port I and an outlet port O for flow of air, and is installed inside the chassis 10 to provide the inlet port I and the outlet port O. Heat exchange with the refrigerant is installed in front of the cross-flow fan 13 and the cross-flow fan 13 for forcibly flowing the air so that the air is sucked and discharged through the cross-flow fan (13) It comprises a heat exchanger (15) for cooling through.

Here, the chassis 10 has an upper inlet (I) is formed on the upper surface and the front, respectively, the upper chassis 11 is formed with a discharge port (O) on the lower surface, and the lower chassis coupled to the rear side of the upper chassis ( 12).

In addition, a flow guide 17 is formed in the lower chassis 12 to form a flow path of air flowing by the cross flow fan 13, and one side of the cross flow fan 13 drives the cross flow fan 13. The motor 19 and the control box 20 is mounted.

In addition, a suction grill 11a is mounted to the upper chassis 11 in front of the suction port I, a discharge grill 11b is mounted to the discharge port O side, and the lower chassis is mounted to the discharge grill 11b. The vanes 21 and the louvers 23 which adjust the discharge direction of the air moved along the flow path guide 17 of 12 are respectively provided.

In particular, an air filter 31 and a dust collecting device 35 are installed at the rear of the suction grille 11a on the suction port I side of the upper chassis 11 for the purpose of purifying indoor air.

The indoor unit of the wall-mounted air conditioner configured as described above is cooled while the air in the room sucked through the intake port I passes through the heat exchanger 15 as the cross flow fan 13 is operated. After passing through the fan 13 is moved to the discharge port (O) side along the flow path guide 17 is discharged into the room through the discharge port (O) to achieve the cooling of the room.

At the same time, the air sucked into the suction port I passes through the air filter 31 and the dust collector 35 to remove contaminants, and then, the air purified to some extent is taken out again into the room.

However, by employing an air purification system composed of an air filter 31 and a dust collector 35, such as the wall-mounted air conditioner of the prior art, it basically responds to various contaminants / moisture / odors generated indoors. In particular, contaminants such as fine particles, carbon dioxide, and volatile organic compounds are not easily removed by the air purification system.

Therefore, the introduction of a ventilation system in general air conditioners also introduces an appropriate amount of outside air into the room, and the demand for maintaining the quality of indoor air in a comfortable state is increasing. The air conditioner applying the ventilation system is largely equipped with a ventilation system inside the air conditioner. There is a separate product type that adds a ventilation effect by combining the product mounting type using a pipe passage from one side without a separate hole, and a separate ventilation kit (kit) to the general air conditioner.

However, the air conditioner to which the ventilation system is applied as described above can improve the quality of the indoor air more actively by realizing proper ventilation with the operation of the air conditioner, but applying the ventilation system through the existing piping passage or installing it separately As a result, the structure of the overall air conditioner is complicated, and the additional cost increases.

The present invention has been made to solve the above problems, by forming at least one inlet in the rear of the cross flow fan, by connecting the air supply pipe to the hole in the simple structure of the outside air is introduced into the room when the air conditioner operation more An object of the present invention is to provide an air conditioner equipped with a ventilation device capable of realizing a comfortable air conditioning environment.

In addition, the present invention by forming an inlet in a position that can suck the largest amount of outside air in the direction of rotation of the cross flow fan can easily suck a large amount of outside air as the cross flow fan is rotated without having additional air intake means Another object is to provide an air conditioner with a ventilation device.

1 is an exploded perspective view showing a conventional wall-mounted air conditioner,

Figure 2 is a side cross-sectional view of a wall-mounted air conditioner of the prior art,

3 is an exploded perspective view of a main part of a wall-mounted air conditioner equipped with a ventilation device according to the present invention;

Figure 4 is a side cross-sectional view of a wall-mounted air conditioner with a ventilation device according to the invention,

5 is a reference diagram for showing a ventilation device installation position in the present invention,

Figure 6 is a pressure distribution around the cross flow fan for referring to the installation conditions of the ventilation device in the present invention.

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

51: upper chassis 53: discharge grill

54: Cutoff Guide 55: Lower Chassis

57: Euro guide 57a: inlet

60: cross flow fan 70: heat exchanger

80: supply pipe 90: on-off valve

An air conditioner equipped with a ventilation device according to the present invention for realizing the above object comprises: a chassis means formed with an inlet and an outlet to allow indoor air to pass therethrough; A fan installed inside the chassis means to forcibly flow indoor air; Cut-off guide means provided between the suction port and the discharge port of the chassis means to partition the suction area and the discharge area of the fan; A flow path guide installed at an inner side of the chassis means that is the rear of the fan to guide the flow of indoor air and at the same time an inlet is formed so that outside air can be introduced with suction force generated when the fan is rotated on one surface; It is possible to be characterized in that it comprises an air supply pipe is connected to the outdoor side from the inlet of the flow path guide the outside air flows.

The fan is also comprised of a cross-flow fan; At least one inlet of the flow path guide is formed at a position of 270 ± 45 ° in the circumferential direction from a cutoff point that divides the suction area and the discharge area of the cross flow fan.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

3 is an exploded perspective view of main parts of an air conditioner equipped with a ventilation device according to the present invention, and FIG. 4 is a side cross-sectional view of the air conditioner provided with a ventilation device according to the present invention.

According to the present invention, the air conditioner includes an upper chassis 51 having an inlet port I formed at an upper side and a front side thereof, and an outlet opening O formed at a lower front side thereof, and a lower chassis coupled to a rear side of the upper chassis 51. 55 and a cross flow fan 60 installed between the upper chassis 51 and the lower chassis 55 to forcibly flow indoor air to suck and discharge the air through the inlet port I and the outlet port O; And a heat exchanger 70 installed at the front of the cross flow fan 60 to cool the air flowing by the cross flow fan 60 through heat exchange with a refrigerant, and a lower chassis at the rear of the cross flow fan 60. 55 is coupled to the side is composed of an air supply pipe (80) connected to the outdoor side so that the outside air is introduced.

A flow path guide 57 is formed in the lower chassis 55 to form a flow path of air flowing by the cross flow fan 60, and a motor 65 for driving the fan is formed at one side of the cross flow fan 60. Is installed.

At least one inlet 57a is formed in the flow path guide 57 so that external air can be introduced through the air supply pipe 80 by a negative pressure generated when the cross flow fan 60 is rotated, that is, a suction force.

In addition, a discharge grill 53 is mounted below the upper chassis 51, and the discharge grill 53 adjusts the discharge direction of air moved along the flow guide 57 of the lower chassis 55. The vanes 53a and louvers 53b are provided respectively.

The discharge grill 53 is formed with a cutoff guide 54 for partitioning the suction area and the discharge area of the cross flow fan 60.

The cut-off guide 54 as described above is configured to pressurize and discharge air when the cross flow fan 60 rotates together with the flow path guide 57.

In particular, the inlet 57a formed in the flow path guide 57 is formed at a position of 270 ± 45 ° in the circumferential direction from the cutoff point of the cutoff guide 54 as shown in FIG. 5.

The reason why the inlet 57a is formed at a position of 270 ± 45 ° from the cutoff point is between 270 ± 45 ° having the lowest static pressure according to the static pressure distribution around the crossflow fan 60 as shown in FIG. 6. By forming, the outdoor air can be sucked easily when the cross flow fan 60 is rotated.

That is, as the cross flow fan 60 rotates, the indoor air flows at a high speed, and the pressure in front of the flow path guide 57 is lower than atmospheric pressure. At this time, the pressure in the circumferential direction of the crossflow fan 60 varies depending on the position, but as shown in FIG. 6, a larger amount of external air is formed by forming an inlet 57a between 270 ± 45 ° having the lowest static pressure as a result of pressure distribution measurement. It will be easy to inhale.

On the other hand, the inlet (57a) of the flow path guide 57 and the connecting portion of the air supply pipe 80 is provided with an opening and closing valve 90 to adjust whether the intake of outdoor air.

The on-off valve 90 may be installed to open and close the passages of the inlet port 57a and the air supply pipe 80 according to a signal of a control means like a normal solenoid type on-off valve.

Of course, it may be configured to open and close the air supply pipe 80 through a manual operation rather than the electronic as described above.

Referring to the operation of the air conditioner with a ventilation device according to the present invention configured as described above are as follows.

When the cross flow fan 60 is rotated, the indoor air is introduced through the inlet I, and then cooled while passing through the heat exchanger 70, and the air thus cooled passes through the cross flow fan 60 and flow path guide 57. ) And the cutoff guide 54 is discharged into the room through the discharge port (O).

On the other hand, when the open air control valve 90 is opened, the air inlet (57a) of the flow path guide 57, because the indoor air passes quickly to generate a pressure lower than the atmospheric pressure so that the air supply pipe (80) and the inlet ( As the outside air flows through 57a), it is supplied to the room through the discharge port O together with the room air.

Therefore, when the ventilation through which the outside air is introduced into the room through the inlet 57a as described above, the pollutant can be diluted and the fresh air required for the metabolism of the indoor user can be supplied.

Of course, when the open air control valve 90 is closed, the outside air is not sucked through the air supply pipe 80 so that only indoor air is circulated.

The air conditioner equipped with the ventilation device of the present invention as described above is provided with an inlet and an air supply pipe so that external air can be sucked around the cross flow fan, thereby forming a ventilation structure with a simple structure to realize a more comfortable indoor air conditioning environment. There is an advantage to that.

In the present invention, since the inlet is formed at a position capable of sucking the largest amount of outside air in the direction of rotation of the crossflow fan, a large amount of outside air can be easily inhaled only by the operation of the crossflow fan without an additional outside air suction device. There is also an advantage.

Claims (4)

Chassis means formed with an inlet port and an outlet port through which indoor air passes; A fan installed inside the chassis means to forcibly flow indoor air; Cut-off guide means provided between the suction port and the discharge port of the chassis means to partition the suction area and the discharge area of the fan; A flow path guide installed at an inner side of the chassis means that is the rear of the fan to guide the flow of indoor air and at the same time an inlet is formed so that outside air can be introduced with suction force generated when the fan is rotated on one surface; And an air supply pipe connected to the outdoor side from the inlet of the flow path to the outside to introduce external air. The method of claim 1, The fan is comprised of a cross-flow fan; And at least one inlet of the flow path guide is formed at a position of 270 ± 45 ° in a circumferential direction from a cutoff point that divides the suction area and the discharge area of the cross flow fan. The method according to claim 1 or 2, And at least one inlet is formed in the flow path guide. The method of claim 1, And an opening and closing means is installed at an inlet or an air supply pipe of the flow path guide to adjust whether the outdoor air is inhaled.