KR100455188B1 - Ventilation air volume control apparatus for bathroom type air conditioner - Google Patents

Abstract

The present invention relates to a ventilation air volume control device for a bathroom type air conditioner, the casing disposed on the ceiling of the bathroom having a circulation passage and a discharge passage formed therein so as to circulate and discharge the air, and disposed in the discharge passage A bathroom-type air conditioner having a discharge fan, wherein the air is discharged to the outside by the discharge fan when the discharge fan is disposed to be rotatable in a vertical direction with respect to a rotation shaft disposed along a horizontal direction in the discharge passage. A rotating member that is rotated upward to open the discharge flow path about the rotating shaft by the air blown by the discharge fan, and a rotating member position detection disposed on one side of the rotating member to detect the rotating position of the rotating member. A pressure differential inspection for detecting the pressure difference between the pressure of the air discharged to the outside by the discharge fan and the external pressure; Exit means; And a controller for adjusting the rotational speed of the discharge fan based on the detection result of the pressure detecting means. Thereby, the ventilation air volume control apparatus of the bathroom type air conditioner which can ensure a constant ventilation air volume irrespective of the static pressure applied to an exhaust duct is provided.

Description

VENTILATION AIR VOLUME CONTROL APPARATUS FOR BATHROOM TYPE AIR CONDITIONER}

The present invention relates to a ventilation air volume control device for a bathroom type air conditioner, and more particularly, to a ventilation air volume control device for a bathroom type air conditioner to ensure a constant ventilation air volume regardless of the static pressure applied to the discharge duct.

In general, an air conditioner is an air conditioner that is disposed in a room, a living room or an office, or a space such as a business store to maintain a comfortable indoor environment by controlling air temperature, humidity, cleanliness, and airflow.

In general, air conditioners are referred to as air conditioners for cooling indoors in summer. Some of these air conditioners reverse the flow of refrigerant in a refrigeration cycle to selectively perform cooling and heating functions, so-called heat pumps. There is a combined air-conditioning and air conditioner called a pump or an air conditioner for four seasons.

On the other hand, according to the change of living environment, most of the living spaces are equipped with bathrooms and toilets (hereinafter referred to as bathrooms), and these bathrooms always have water and drains to drain used water. Various fungi, bacteria, etc. are not only easy to breed, but also cause various odors, causing discomfort.

In consideration of these problems, there is a bathroom-type air conditioner that can solve the harmful effects of bathroom use by cooling and heating the bathroom.

1 is a longitudinal sectional view of a conventional bathroom air conditioner. As shown, the bathroom-type air conditioner forms a receiving space therein and has a circulation passage 112 so as to circulate air in the bathroom and a discharge passage 122 so as to discharge the air of the bathroom to the outside of the bathroom. A casing 111 disposed on the ceiling 110, a compressor 131 disposed inside the casing 111 to compress the refrigerant, and a first heat exchanger disposed in contact with air in the circulation passage 112. 113, a circulation fan 115 disposed in the circulation passage 112 to circulate air in the bathroom by sucking and discharging air in the bathroom, and a second heat exchanger disposed in contact with the air in the discharge passage 122. And a discharge fan 125 disposed in the discharge passage 122 to discharge air from the bathroom to the outside.

The first suction port 114 is formed at the bottom of the casing 111 to suck air from the bathroom, and the first discharge port 116 is formed at the end of the circulation passage 112. The second suction port 124 is formed at one side of the first suction port 114, and the air flowing along the discharge passage 122 is sucked through the second suction hole 124 at one side of the second suction hole 124. The second discharge port 126 is formed so as to blow back to the bathroom.

A discharge port 128 is formed at the end of the discharge passage 122 to discharge the air of the bathroom to the outside, and the other end of the discharge duct 129, one end of which is extended to the outside, is connected to the discharge port 128. The discharge port 128 is provided with a damper 130 to selectively open or close any one of the discharge port 128 and the second discharge port 126.

By such a configuration, in the cooling mode or in the ventilation damper 130 is rotated downward so that the outlet 128 is opened, and when the discharge fan 125 is driven, the air introduced through the second inlet 124 is discharged to the discharge passage ( Flow along the 122 is discharged to the outside through the discharge port 128 and the discharge duct 129.

By the way, in such a conventional bathroom-type air conditioner, when a change in the static pressure applied to the outlet 128 region occurs depending on the number of floors installed, such as an apartment, if the static pressure is relatively large, for example, the first floor, the ventilation air volume There is a problem that cannot be properly obtained.

Accordingly, it is an object of the present invention to provide a ventilation air volume control apparatus for a bathroom type air conditioner capable of securing a constant ventilation air volume regardless of the static pressure applied to the exhaust duct.

1 is a longitudinal cross-sectional view of a conventional bathroom type air conditioner,

Figure 2 is a longitudinal cross-sectional view of the use state of the ventilation air volume control device of the bathroom type air conditioner according to an embodiment of the present invention,

3 is a control block diagram of the ventilation airflow control apparatus of the bathroom type air conditioner of FIG.

4 is an enlarged view illustrating main parts of FIG. 2.

Explanation of symbols on the main parts of the drawings

11: casing 12: circulation flow path

14 discharge passage 13 first inlet

15: second inlet 19: outlet

26: first discharge outlet 28: second discharge outlet

31: first heat exchanger 35: second heat exchanger

37: discharge fan 38: discharge fan drive unit

40: discharge duct 41: control unit

43: optical sensor 45: backflow damper

According to the present invention, a bathroom having a casing disposed on the ceiling of a bathroom having a circulation passage and a discharge passage formed therein so as to circulate and discharge air, and a bathroom having a discharge fan disposed among the discharge passages. In the air conditioner, the exhaust fan is blown by the discharge fan when the air of the bathroom is discharged to the outside by the discharge fan by being disposed to be rotatable along the up and down direction about the rotation shaft disposed along the horizontal direction. The discharge member is provided with a rotating member which is rotated upward to open the discharge passage around the rotating shaft by air, and a rotating member position detecting means disposed on one side of the rotating member to detect the rotating position of the rotating member. Pressure difference detecting means for detecting a pressure of air discharged to the outside by the fan and an external pressure difference; And a control unit for adjusting the rotational speed of the discharge fan based on the detection result of the pressure detecting means.

Here, the rotation member is preferably a backflow prevention damper formed to block the exhaust flow path when the air flows back from the outside.

Further, it is effective that the rotating member position detecting means is an optical sensor.

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

2 is a longitudinal cross-sectional view of a state of use of the ventilation airflow control device of the bathroom-type air conditioner according to an embodiment of the present invention, Figure 3 is a control block diagram of the ventilation airflow control device of the bathroom-type air conditioner of Figure 2, Figure 4 2 is an enlarged view of main parts of FIG. 2. As shown in these figures, the bathroom-type air conditioner has a ceiling 10 having a circulation passage 12 for circulating air in the bathroom and a discharge passage 14 for discharging to the outside, forming an accommodation space therein. A casing 11 disposed in the casing, a partition plate 20 formed to separate and partition the inner space of the casing 11, a compressor 21 disposed on one side of the casing 11 to compress the refrigerant, and a compressor. A first heat exchanger 31 disposed on one side of the 21, a circulation fan 33 disposed on one side of the first heat exchanger 31, and a partition plate 20 to allow air in the bathroom to be circulated. A second heat exchanger 35 disposed on an opposite side of the first heat exchanger 31 and a side of the second heat exchanger 35 so as to discharge air from the bathroom to the outside. The fan 37 is provided.

A four-way valve 23 is provided on the discharge side of the compressor 21 to switch the flow path, and an expansion device 36 is provided on one side of the first heat exchanger 31.

At the bottom of the casing 11, a first suction port 13 and a second suction hole 15 are provided with a partition plate 20 interposed therebetween so as to suck air from the bathroom into the circulation passage 12 and the discharge passage 14. Are formed respectively.

A first discharge port 26 is formed at one side of the first suction port 13 to discharge the air flowed along the circulation passage 12, and the discharge side of the discharge fan 37 may discharge the air to the outside. The outlet 19 is formed so that. An outlet duct 40 is coupled to an outlet duct 40 having one end extended to the outside, and a bottom area adjacent to the outlet 19 is configured to discharge air sucked through the second inlet 15 to the bathroom. Two discharge ports 28 are formed. A damper 30 is provided inside the side wall of the casing 11 in which the discharge port 19 is formed so as to selectively open and close the discharge port 19 and the second discharge port 28.

On the other hand, in the outlet 19 to detect the difference between the wind pressure discharged to the outside by the discharge fan 37 and the positive pressure applied to the outlet 19 to ensure a ventilation air volume according to an embodiment of the present invention Ventilation air volume control device is provided.

The ventilation air volume control device of the bathroom type air conditioner includes a backflow prevention damper 45 rotatably disposed in the discharge flow passage 14, an optical sensor 43 for detecting a rotational position of the backflow prevention damper 45, and a light. The control part 41 which controls the rotational speed of the discharge fan 37 based on the detection result of the sensor 43 is comprised.

The non-return damper 45 is rotatable in the upper upper region of the discharge duct 40 along the horizontal direction and rotatable in the vertical direction about the rotation axis 46a and discharge port 19. It is provided with a plate-shaped block part 46b which has the magnitude | size of the opening and closing.

Under the backflow damper 45, when the air inside the bathroom is discharged by the exhaust fan 37, the backflow damper 45 rotates around the rotational shaft 46a by the wind pressure of the exhausted air. An optical sensor 43 is provided to detect the position, and the optical sensor 43 controls the rotational speed of the discharge fan 37 according to the detected rotational position of the non-return damper 45. Are electrically connected to each other.

By this configuration, in the cooling mode or the ventilation mode of the air in the bathroom, the damper 30 is rotated downward so that the discharge port 19 is opened and the second discharge port 28 is blocked, and the discharge fan 37 rotates. In the beginning, the air of the bathroom flows into the casing 11 through the second suction port 15. The introduced air flows along the discharge passage 14, and the backflow prevention damper 45 rotates upwardly about the rotation shaft 46a. At this time, the optical sensor 43 detects the rotational position of the non-return damper 45 and outputs a detection signal to the controller 41. The controller 41 has a relatively large external pressure based on the detection signal. In this case, by controlling the discharge fan driver 38 for driving the discharge fan 37 so that the rotational speed of the discharge fan 37 is increased, the amount of ventilation air is properly ensured.

In the above-described and illustrated embodiments, the case where the rotational position of the non-return damper is detected and the rotational speed of the discharge fan is controlled based on the detection result is given. However, the wind pressure of the air discharged to the outside by the discharge fan is given. It is also possible to control the rotational speed of the discharge fan by installing a separate rotating member to rotate in proportion to and detect the rotational position of the rotating member.

In addition, in the above-described and illustrated embodiments, an example is provided in which the optical sensor is arranged on one side of the non-return damper so that the rotational position of the non-return damper can be detected. A rotation position can also be detected by installing (RVDT) or the like.

In the above-described and illustrated embodiments, a backflow prevention damper and an optical sensor are described as detection means for detecting a difference between the wind pressure of the air discharged by the discharge fan and the static pressure applied to the discharge port side. A separate pressure differential detection device may be used.

As described above, according to the present invention, when the air discharged to the outside of the bathroom by the discharge fan is disposed so as to be rotatable in the vertical direction around the rotation axis arranged in the horizontal direction in the discharge passage by the discharge fan It is provided with a rotating member which is rotated upward to open the discharge flow path about the rotating shaft by the blown air and a rotating member position detecting means which is disposed on one side of the rotating member to detect the rotating position of the rotating member. Pressure difference detection means for detecting the pressure difference between the discharged air and the external pressure, and a control unit for controlling the rotational speed of the discharge fan based on the detection result of the pressure difference detection means to provide a change in the static pressure caused by the installation place, etc. Correspondingly, a ventilation airflow control apparatus for a bathroom-type air conditioner capable of adequately securing the ventilation airflow is provided.

Claims (4)

In the bathroom-type air conditioner having a casing disposed on the ceiling of the bathroom having a circulation passage and a discharge passage formed therein so as to circulate and discharge the air, and a discharge fan disposed in the discharge passage, When the air of the bathroom is discharged to the outside by the discharge fan to be rotated along the up and down direction around the rotating shaft disposed along the horizontal direction in the discharge passage by the air blown by the discharge fan A rotating member which is rotated upward to open the discharge passage around the rotating shaft and a rotating member position detecting means which is disposed on one side of the rotating member to detect the rotating position of the rotating member and is moved outwardly by the discharge fan. Pressure difference detecting means for detecting a pressure difference between the discharged air and an external pressure difference; And a control unit for adjusting the rotational speed of the discharge fan based on the detection result of the pressure detecting means. delete The method of claim 1, The rotation member is a ventilation airflow control device of a bathroom type air conditioner, characterized in that the backflow prevention damper is formed to block the exhaust flow path when the air flows back from the outside. The method according to claim 1 or 3, The rotation member position detecting means is a ventilation air volume control device of a bathroom type air conditioner, characterized in that the light sensor.