JP2003185227A - Ceiling-mounted type air conditioner and control method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ceiling-mounted type air conditioner which uniformly conditions the air in each part indoors, and also to provide a control method thereof. <P>SOLUTION: A radiation temperature sensor S for measuring radiation temperature in several parts indoors is attached to one side of a front panel 20 provided in a bottom surface of a main body 10 of the ceiling-mounted type air conditioner or to a vane 30 of a discharge slot of the ceiling-mounted type air conditioner to measure the radiation temperature in several parts indoors by using the radiation temperature sensor S. Comfort degrees in several parts are respectively computed on the basis of the radiation temperature, and the discharge quantity indoors is controlled on the basis of the computed comfort degrees to uniformly condition the air throughout the room. Amenity is improved by controlling the discharge quantity on the basis of the comfort degrees computed on the basis of the radiation temperature, not the indoor temperature. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling type air conditioner and a control method therefor, and in particular, it calculates the comfort level of each place in a room so that the air in the room can be uniformly conditioned, and the discharge rate is calculated based on the comfort level. TECHNICAL FIELD The present invention relates to a ceiling type air conditioner for adjusting the temperature and its control method.

[0002]

2. Description of the Related Art Recently, the use of a ceiling type air conditioner mounted on the ceiling of a large-scale dining room or classroom for conditioning the air in the dining room or classroom is rapidly increasing.
In this way, the ceiling type air conditioner attached to the ceiling is
Compared to a general-purpose air conditioner installed in one place in the room to adjust the air in a limited area, the air conditioner in the room can be conditioned relatively uniformly because it is installed on the ceiling.

That is, as shown in FIG. 6, by adjusting the angles of the vanes a and b of the ceiling type air conditioner 1 attached to the ceiling of the room, the air discharged from the air conditioner is made uniform in the room. Since it is transmitted, there is an effect that the temperature in the room can be kept uniform as compared with a general type air conditioner mounted on a wall or the like. However, as shown in FIG. 6, when the window 2 is provided in the room in which the ceiling type air conditioner 1 is installed,
Since the temperature of the indoor space adjacent to the window 2 is more severe than that of the indoor space adjacent to the corridor 3 on the opposite side, there is a problem that it is difficult to uniformly maintain the indoor air.

In short, the existing ceiling type air conditioner 1 is
Measure the indoor temperature and adjust the wind direction and speed based on it, but in this case, measure the indoor temperature at the location where the ceiling air conditioner is installed instead of measuring the temperature at each location in the room. However, since the wind direction and the wind speed have been controlled based on the measured indoor temperature according to a preset control method, there is a problem in that even if the temperature difference at each location in the room becomes severe, this cannot be compensated.

[0005]

SUMMARY OF THE INVENTION The present invention has been devised to solve the above-mentioned problems of the prior art.
The purpose is to attach a radiant temperature sensor to the air conditioner installed on the ceiling for the purpose of air conditioning in the room, measure the radiant temperature of each part of the room, and at the same time calculate the comfort level. It is an object of the present invention to provide an air conditioner and a control method for the same so that the air at each point can be uniformly conditioned.

[0006]

In order to solve the above-mentioned problems, a ceiling type air conditioner according to the present invention has a heat exchanger and a blower, and a main body fixed to the ceiling in an exposed state. A front panel coupled to the bottom surface of the main body and having an inlet and an outlet for allowing indoor air to be sucked and discharged, and a radiant temperature attached to one side surface of the front panel to sense a radiant temperature in a room. A sensor, and a microcomputer that calculates the comfort level in the room based on the indoor radiant temperature sensed from the radiant temperature sensor, and adjusts the vane angle of the discharge port based on it. To do.

Further, in the control method for the ceiling type air conditioner according to the present invention, the radiant temperature is measured in the first step in which the radiant temperature in the room where the air conditioner is installed in the ceiling is measured, and in the first step. And a third step in which the comfort level in the room is calculated, and a third step in which the outlet vane angle of the air conditioner is adjusted based on the comfort level calculated in the second step. And

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a cross-sectional view showing a main part configuration of an indoor unit of a ceiling type air conditioner,
The ceiling type air conditioner is large and is housed and installed in the ceiling 1, and the indoor heat exchanger 15, the indoor fan 16 and the motor 1 are installed.
6a is installed, a main body 10 having an open bottom surface, an intake grill 22 coupled to the bottom surface of the main body 10 and exposed to the inside of the room, and having a central part for intake of indoor air,
A front panel 2 having discharge ports 24 formed to discharge the heat-exchanged air around the suction grill 22.
0 is included.

The indoor heat exchanger 15 is arranged in a quadrilateral shape surrounding the indoor fan 16 and the motor 16a in four directions, and the space between the indoor fan 16 and the suction grill 22 is changed by the rotation of the indoor fan 16. A bell mouth 18 that guides the air sucked into the main body 10 from the inside is disposed. Below the indoor heat exchanger 15, the indoor heat exchanger 15 is provided during the heat exchange process between the refrigerant and the air of the indoor heat exchanger 15.
A drain pan 19 is arranged to receive condensed water generated on the surface of the. A plurality of wind direction adjusting vanes 30 for adjusting the up and down direction of the cool air or the hot air that is heat-exchanged while passing through the indoor heat exchanger 15 and is discharged toward the indoor side is rotated at the discharge port 24 of the front panel 20. Arranged freely.

FIG. 2 is a plan view showing the radiation temperature sensor attached to the panel according to the present invention. As shown in FIG. 2, a vane motor 40 for rotating the wind direction adjusting vanes 30 is mounted on the upper surface of the front panel 20, and the wind direction adjusting vanes 30 are provided between the wind direction adjusting vanes 30. A rotary rod 44 for driving simultaneously is provided. The wind direction adjusting vane 30 is formed of a rectangular flat plate, and has an up / down adjusting unit 31 for guiding the up / down air direction of the heat-exchanged air discharged from the discharge port 24,
A support base 32 projecting from both side ends of the vertical airflow direction adjusting unit 31 to transmit a driving force from the vane motor 40;
Composed of.

Particularly, the ceiling type air conditioner according to the present invention is
As shown in FIG. 2, it includes a radiation temperature sensor S attached to one side surface of the front panel 20 to measure radiation temperature at at least two locations in a room where the ceiling type air conditioner body 10 is provided. . Further, the microcomputer of the ceiling type air conditioner 10 ensures that the air in the room is uniformly conditioned based on the radiant temperature of each part of the room measured by the radiant temperature sensor S.

Here, the radiant temperature sensor S has a minimum of 120 so that it can measure the radiant temperature of the window side wall and the corridor side wall formed in the room where the ceiling type air conditioner is installed.
It consists of a radiation temperature sensor with a sensing range of more than °. In addition, as shown in FIG. 3, the radiation temperature sensor S according to the present invention may be attached to any one of the plurality of wind direction adjusting vanes 30 of the air conditioner. As described above, even if the radiation temperature sensor has a sensing range of 120 ° or more, it is possible to measure the radiation temperature at a plurality of places in the room.

That is, as the vane attached to the radiation temperature sensor S is driven to the left and right, the radiation temperature sensor S attached to the vane also moves to the left and right, so that the radiation temperatures at a plurality of locations in the room are measured. can do. Therefore, the radiation temperature sensor S can measure the radiation temperatures of the window side wall and the corridor side wall according to the driving of the wind direction adjusting vane. When the radiant temperature sensors S mounted on the ceiling type air conditioner measure the radiant temperatures at a plurality of indoor locations, the microcomputer of the ceiling type air conditioner calculates the comfort level at each indoor location based on the measured radiant temperatures. .

FIG. 4 is a block diagram showing each structure of the ceiling type air conditioner according to the present invention. As shown in FIG. 4, the ceiling type air conditioner has an indoor temperature sensor 15 capable of measuring an indoor temperature of a space in which the ceiling type air conditioner is installed.
2 and 3, the radiation temperature sensor S for measuring the radiation temperature at each location in the room, and the indoor temperature and radiation temperature measured by the indoor temperature sensor 15 and the radiation temperature sensor S A microcomputer 16 that calculates the comfort level at each location and controls the motor 40 that controls the drive of the vanes in accordance with the calculation result
, And are included.

Here, the microcomputer 16
Calculates the comfort level of each part by averaging the radiant temperature of each part of the room measured by the radiant temperature sensor S and the indoor temperature of the room measured by the indoor temperature sensor 15.
That is, the comfort level on the window side in the room is the average value of the radiation temperature on the window side and the room temperature. The comfort level of the wall on the corridor side is the average value of the radiation temperature of the wall and the room temperature. The microcomputer 16 compares the comfort level on the window side with the comfort level on the wall on the corridor side, and controls the motor 40 driving the plurality of wind direction adjusting vanes 30 based on the comfort level to control the plurality of wind directions. The angle of the adjusting vane 30 is adjusted.

That is, the microcomputer 16
When the comfort level on the window side is lower than the comfort level on the wall on the corridor side, the motor 40 is controlled so that the amount of air discharged toward the window side increases, and the angle of the wind direction adjusting vane on the window side is adjusted. Adjust. When the comfort level of the wall on the corridor side is lower than the comfort level on the window side, the motor 40 is controlled so that the amount of air discharged toward the wall of the corridor side increases, and the wall side of the corridor side is controlled. Adjust the angle of the vane. The operation of the ceiling type air conditioner of the present invention configured as described above will be described below with reference to FIG.

First, in the first step (S1), the radiation temperature sensor measures radiation temperatures at a plurality of locations in a room as the ceiling type air conditioner operates. In the second stage (S2),
The microcomputer of the ceiling type air conditioner calculates the comfort levels of the indoor window side and the wall side based on the measured radiation temperature. Here, the microcomputer calculates an average value of the radiation temperature on the indoor window side and the indoor temperature as a comfort level on the indoor window side, and an average value of the radiation temperature on the wall side and the indoor temperature on the wall side. It is calculated as the comfort level.

In a third step (S3), the microcomputer compares the calculated comfort levels with each other. If the comfort levels calculated in the third step are the same, the air conditioner control method according to the present invention returns to the first step. On the other hand, if the comfort levels calculated in the third level are not the same, in the fourth level (S4), the microcomputer determines whether the comfort level on the window side is higher than the comfort level on the wall side. Compare.

When the comfort level on the window side is lower than the comfort level on the wall side in the fourth step, in the fifth step (S5),
The microcomputer increases the amount of air discharged toward the window side by adjusting the angle of the vane facing the window side. On the other hand, if the comfort level on the window side is higher than the comfort level on the wall side in the fourth step, the microcomputer adjusts the angle of the vane facing the wall side in the sixth step (S6). By doing so, the amount of air discharged toward the wall side is increased.

[0020]

According to the ceiling type air conditioner and the method of controlling the same of the present invention configured as described above, a radiation temperature sensor capable of measuring radiation temperatures at a plurality of places in a room is provided in the main body of the ceiling type air conditioner. By measuring the radiation temperature at a plurality of locations in the room using the radiation temperature sensor by adhering to one side of the front panel provided on the bottom surface of the front air conditioner or to the discharge port vane of the ceiling type air conditioner, By calculating the comfort levels at multiple locations and adjusting the indoor discharge volume based on the calculated comfort levels, the air in the room is uniformly conditioned, and the comfort level calculated from the radiation temperature that is not the room temperature Comfort can be improved by controlling the discharge amount based on the degree.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a main configuration of a ceiling type air conditioner according to the present invention.

FIG. 2 is a view showing a first state in which a radiation temperature sensor according to the present invention is attached to a panel.

FIG. 3 is a view showing a second state in which a radiation temperature sensor according to the present invention is attached to a wind direction adjusting vane.

FIG. 4 is a block diagram showing a configuration of a ceiling type air conditioner according to the present invention.

FIG. 5 is a flow chart showing a flow of a control method for a ceiling type air conditioner according to the present invention.

FIG. 6 is a diagram showing an example in which a conventional ceiling air conditioner is attached to a ceiling.

[Explanation of symbols]

10 ... Main body of ceiling type air conditioner 15 ... Indoor temperature sensor 16 ... Microcomputer 30 ... Wind direction adjusting vanes 40 ... Vane motor S ... Radiation temperature sensor

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Chokwan Sik             Kunkey, 431-060 Ann, South Korea             Yang Si, Dong Gang, Kwan Yang             N Hyundai Apartment Namba             -9-905 F-term (reference) 3L060 AA06 CC02 DD05 EE05                 3L061 BA02

Claims (10)

[Claims] 1. A main body in which a heat exchanger and a blower are installed, and which is fixed to a ceiling in a state of being exposed to the outside; a main body coupled to a bottom surface of the main body, and an intake port and a discharge port for allowing indoor air to be sucked and discharged. A front panel having an outlet; a radiant temperature sensor attached to one side surface of the front panel to sense a radiant temperature in the room; a comfort level in the room based on the radiant temperature in the room sensed by the radiant temperature sensor And a microcomputer that adjusts the vane angle of the discharge port based on the calculated value; and a ceiling type air conditioner. 2. The ceiling type air conditioner according to claim 1, wherein the radiant temperature sensor is attached to one side surface of the front panel so as to detect radiant temperatures at two or more locations in a room. . 3. The ceiling-type air according to claim 1, wherein the radiant temperature sensor is attached to a vane of the discharge port and moves to the left and right as the vane is driven to measure the radiant temperature in the room. Harmony machine. 4. The microcomputer calculates a comfort level at a location where the radiation temperature sensor measures the radiation temperature based on an average value of an indoor temperature in the room and a radiation temperature measured by the radiation temperature sensor. The ceiling type air conditioner according to claim 1, wherein the ceiling type air conditioner is configured as follows. 5. The microcomputer controls the vane angle of the discharge port so that the discharge wind is directed to the indoor space having a low comfort level by comparing the magnitudes of the comfort levels calculated at various points in the room. The ceiling type air conditioner according to claim 4. 6. The microcomputer controls the vane angle of the discharge port so that the wind direction of the discharge wind becomes constant when the comfort levels calculated in the respective parts of the room are the same. The ceiling type air conditioner according to claim 4. 7. A first step in which a radiant temperature in a room in which an air conditioner is installed on a ceiling is measured; and a second step in which a comfort level in a room in which the radiant temperature is measured is calculated. ;
And a third step in which the outlet vane angle of the air conditioner is adjusted on the basis of the comfort level calculated in the second step, and the ceiling air conditioner control method. 8. The method for controlling a ceiling type air conditioner according to claim 7, wherein the radiant temperatures at least at two or more locations in the room are measured in the first step. 9. In the second step, the comfort level is the first comfort level.
The method for controlling a ceiling type air conditioner according to claim 7, wherein the method is an average value of the radiation temperature measured in steps and the indoor temperature in the room. 10. The third step comprises a step of comparing the magnitudes of the comfort levels calculated in the second step; and the result of the comparison step is that the comfort level of a specific location is lower than the comfort levels of other locations. In the case of, the angle of the vane is adjusted so that the discharge air of the air conditioner is directed to the specific location, and when the comfort level of the specific location has a value higher than the comfort levels of other locations, the specific location is The method for controlling a ceiling type air conditioner according to claim 7, further comprising: a vane adjusting process for adjusting an angle of the vane so that a discharge wind of the air conditioner is not directed.