JP4044473B2 - Wind direction control device for air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wind direction control device that controls the air blowing direction from an air conditioner that performs at least one of heating and cooling, and particularly relates to a wind direction control device that is suitable when a small number of people are in a large room.
[0002]
[Prior art]
Conventionally, as a wind direction control device of this type, a plurality of temperature sensors are dispersedly mounted on the four walls of a room in which air conditioning equipment is arranged, and the deviation between the temperature detected by the temperature sensor and the set temperature is determined for the plurality of temperature sensors. In comparison, it is known that the blowing direction is controlled so that the time for blowing in the direction matching the mounting position of the temperature sensor with a large deviation is longer than the time for blowing in the direction matching the mounting position of the temperature sensor with a small deviation. (For example, see Patent Document 1). In addition, in this thing, it is necessary to attach each temperature sensor so that the azimuth | direction with respect to an air conditioning apparatus may become a predetermined azimuth | direction defined beforehand.
[0003]
[Patent Document 1]
Japanese Utility Model Publication No. 56-3344 (Claim 12, FIGS. 2 to 5)
[0004]
[Problems to be solved by the invention]
According to the above conventional example, the temperature difference between the mounting positions of each temperature sensor is eliminated at an early stage, and the entire room can be uniformly heated or cooled.
[0005]
By the way, when there are only a small number of people in a large room such as a meeting room of a public hall, it is more efficient to blow the air in a spot where people are. Here, in the above-described conventional example, each temperature sensor is provided with a switch for determining whether the temperature detection is valid or invalid, and the air blowing location can be limited by enabling only the temperature sensor attached to the location where the air blowing is desired. . However, the temperature sensor is not always installed at a location desired by the user, and the air blowing location may deviate from the location desired by the user.
[0006]
It is also possible to set the blowing direction by operating a remote controller, etc., but the operation is troublesome, and if there is no temperature sensor in the set blowing direction, the air volume can be reduced by reducing the deviation from the set temperature. Temperature control such as reduction cannot be performed, and a comfortable air conditioning feeling cannot be obtained.
[0007]
This invention makes it the subject to provide the wind direction control apparatus in the air-conditioning apparatus which can obtain the comfortable air-conditioning feeling in the place which a user requests in view of the above point.
[0008]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides a portable temperature detector that can be installed at any place in a room where an air conditioner that performs at least one of heating and cooling is disposed, and a temperature detector for the air conditioner Measuring means for measuring the azimuth of the installation location, and wind direction control means for controlling the air blowing direction from the air-conditioning apparatus based on the azimuth measured by the measuring means.
[0009]
According to said structure, the direction of a user's request | requirement place can be grasped | ascertained by installing the temperature detector in the place which a user requests | requires. And it can blow to a desired place reliably by controlling a ventilation direction on the basis of this direction. In this case, since the temperature at the desired location can be detected by the temperature detector, it is possible to perform temperature control that maintains the temperature at the desired location at the set temperature. Therefore, a comfortable air-conditioning feeling at the desired location can be reliably obtained.
[0010]
Here, if there is one temperature detector, the air blowing direction may be controlled so that the air blowing direction from the air-conditioning apparatus matches the direction of the location where the temperature detector is installed. However, when people are constantly exposed to air from the air conditioner, they may feel uncomfortable. On the other hand, the air blowing direction from the air conditioner changes within a predetermined range including the direction of the temperature detector installation location, and the time of air blowing in the direction of the temperature detector installation location is changed to the other direction. If the air blowing direction is controlled so as to be longer than the air blowing time, the air blowing direction is appropriately changed while giving priority to the air blowing to the desired place, and a comfortable air conditioning feeling can be obtained.
[0011]
Also, if multiple temperature detectors are prepared, if there are people away from each other in a large room, temperature detectors can be installed in the places where people are located, and air can be blown to these places. . That is, the orientation of the installation locations of the plurality of temperature detectors with respect to the air conditioning equipment is measured by the measuring means, and the air blowing direction from the air conditioning equipment includes all orientations of the installation locations of the temperature detectors by the wind direction control means. Efficient for multiple desired locations by controlling the air blowing direction so that the air blowing time in the direction of the installation location of each temperature detector is longer than the air blowing time in other directions. Can blow well.
[0012]
In this case, the deviation between the detected temperature and the set temperature is compared for the plurality of temperature detectors, and the time to blow in the direction of the installation location of the temperature detector with a large deviation is changed to the direction of the installation location of the temperature detector with a small deviation. If the air blowing direction is controlled so as to be longer than the air blowing time, temperature differences at a plurality of desired locations can be quickly eliminated, and a comfortable air conditioning feeling can be obtained at each desired location.
[0013]
Here, when the air from the air conditioner reaches the temperature detector, the detected temperature changes to a temperature corresponding to the air from the air conditioner. In addition, it takes time for the air blown from the air conditioner to reach the temperature detector. Therefore, in the present invention, the measurement means acquires the detected temperature data of the temperature detector in time series while continuously changing the air blowing direction from the air conditioning apparatus . By changing the angular velocity at least twice , the orientation of the installation location of the temperature detector is obtained from the following equation (3) .
[0014]
The principle of measuring the direction of the installation location of the temperature detector is as follows. When the time until the air blown from the air conditioning apparatus to reach the temperature detector and t, as shown in FIG. 3, the temperature corresponding to the air temperature detected by the temperature detector is blown from the air-conditioning equipment The azimuth in the blowing direction at a time point before time t1, t2 becomes the azimuth θs of the installation location of the temperature detector. However, since t varies depending on the distance between the air conditioner and the location of the temperature detector, it becomes an unknown.
[0015]
Here, when the angular velocity of the change in the air blowing direction is k1, the air blowing direction of the air from the air conditioner at the time when the temperature detected by the temperature detector reaches the temperature corresponding to the air blown from the air conditioner. Assuming that the azimuth is θ1, the azimuth θs of the installation position of the temperature detector is
θs = θ1−k1 × t (1)
When the angular velocity of the change in the blowing direction is k2 (≠ k1), the air temperature from the air conditioner when the temperature detected by the temperature detector reaches the temperature corresponding to the air blown from the air conditioner. Assuming that the orientation of the air blowing direction is θ2, the orientation θs of the installation position of the temperature detector is
θs = θ2−k2 × t (2)
It is represented by When θs is obtained by eliminating t from the equations (1) and (2),
θs = (k2 × θ1−k1 × θ2) / (k2−k1) (3)
become. Therefore, acquiring the detected temperature data of the temperature detector in time series while continuously changing the air blowing direction from the air conditioning apparatus as in the present invention, at least by changing the angular velocity of the change in the blowing direction. By performing it twice, the orientation θs of the temperature detector can be accurately obtained from the above equation (3).
[0016]
Note that if the change angular velocity in the blowing direction is sufficiently slow, the influence of the time t required for the air from the air conditioner to reach the temperature detector can be ignored, and the temperature detected by the temperature detector is blown from the air conditioner. There is virtually no problem even if the direction of the air blowing direction from the air-conditioning apparatus at the time when the temperature corresponding to the air is reached is set as the direction of the installation location of the temperature detector. However, this increases the time required to measure the orientation of the installation location of the temperature detector. In order to shorten the time required for the azimuth measurement, the change angular velocity in the air blowing direction must be increased. In this case, the azimuth of the installation location of the temperature detector can be obtained from the equation (3) as described above. I need it.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Referring to FIG. 1, reference numeral 1 denotes a large room such as a meeting room. In this room 1, a hot air heater 2 as an air conditioner is arranged. Although not shown, the hot air heater 2 includes a motor-driven variable louver that changes the blowing direction of warmed air (hot air) in the horizontal direction. And by the controller 3 incorporated in the warm air heater 2, the amount of warm air and the air blowing direction can be controlled. The controller 3 functions as a measurement unit and a wind direction control unit of the present invention.
[0018]
Moreover, the portable temperature detector 4 is prepared and this temperature detector 4 can be installed in arbitrary places in a room. FIG. 1 shows a state where one temperature detector 4 is installed indoors. Although not shown, the temperature detector 4 includes a temperature detection element such as a thermistor in a small self-supporting case formed with a vent, a transmitter for wirelessly transmitting detected temperature data by radio waves or light, a power supply battery, and the like. The detected temperature data of the temperature detector 4 is transmitted to the controller 3 of the hot air heater 2.
[0019]
The warm air heater 2 can select an orientation measurement mode for measuring the orientation of the installation location of the temperature detector 4 as one of the heating operation modes. In the azimuth measurement mode, as shown in FIG. 2, the hot air blowing direction is continuously changed from one end side to the other end side of the variable range at a predetermined first angular velocity k1 (S1). Is stored in the controller 3 in time series (S2). Note that the angular velocity of the change in the blowing direction is a vector amount that becomes a positive value when the blowing direction changes from one end side to the other end side of the variable range, and becomes a negative value when the blowing direction changes from the other end side to the one end side of the variable range. And
[0020]
Here, the detected temperature Ts of the temperature detector 4 increases as the direction of the hot air blown from the hot air heater 2 approaches the direction of the installation location of the temperature detector 4 as shown in FIG. , It becomes a peak (temperature corresponding to hot air) when they coincide. Therefore, the time point t1 when the detected temperature Ts reaches the peak is obtained from the time series data of the detected temperature Ts, and the direction θ1 of the hot air from the hot air heater 2 at this time point t1 is calculated (S3). However, it takes time for the warm air blown from the warm air heater 2 to reach the temperature detector 4, and when this time is t, as shown in FIG. The azimuth in the blowing direction of the hot air from the hot air heater 2 at the point of time coincides with the azimuth θs of the installation location of the temperature detector 4. In FIG. 3, θR indicates the orientation of one end of the variable range in the blowing direction, and θL indicates the orientation of the other end of the variable range in the blowing direction.
[0021]
Next, the blowing direction of the warm air is continuously changed from the other end side of the variable range to the one end side at the second angular velocity k2 different from the first angular velocity k1 (S4), and transmitted from the temperature detector 4 during that time. The detected temperature Ts data is stored in the controller 3 in time series (S5). Next, a time point t2 when the detected temperature Ts reaches its peak is obtained from the time series data of the detected temperature Ts, and the direction θ2 of the hot air blowing direction from the hot air heater 2 at this time point t2 is calculated (S6). Finally, k1, k2, θ1, and θ2 are substituted into the equation (3) described in the section for solving the problem to calculate the orientation θs of the installation location of the temperature detector 4 (S7).
[0022]
In order to improve the measurement accuracy of the orientation θs of the installation place of the temperature detector 4, the operation of collecting time series data of the detected temperature by changing the air blowing direction is performed a plurality of times, and θ1, θ2 calculated each time. May be substituted into the equation (3) to determine the orientation θs of the installation location of the temperature detector 4.
[0023]
When the orientation θs of the installation location of the temperature detector 4 is measured as described above, the controller 3 controls the blowing direction so that the blowing direction of the hot air changes within a predetermined range of θs ± Δθ as shown in FIG. To do. In this case, in the vicinity region including θs, the angular velocity of the change in the blowing direction is slowed so that the time of blowing in the direction θs of the installation location of the temperature detector 4 is longer than the time of blowing in the other direction. To do. Thus, when there is a small number of people in the room 1, the hot air can be efficiently supplied to this place by installing the temperature detector 4 in the place where the person is present.
[0024]
Further, when the deviation between the temperature detected by the temperature detector 4 and the set temperature decreases, the air volume of the hot air is decreased so that the temperature at the place where the temperature detector 4 is installed is maintained at the set temperature. Take control.
[0025]
Although it is possible to maintain the direction of the hot air in the direction θs of the location where the temperature detector 4 is installed, if the hot air is continuously received, some people may feel uncomfortable. As described above, it is desirable to change the blowing direction within a predetermined range including the orientation θs of the place where the temperature detector 4 is installed.
[0026]
Further, if a plurality of portable temperature detectors 4 are prepared, when there are people away from each other in the room 1, the temperature detectors 4 can be installed in the places where the people are present. FIG. 5 shows a state in which A, B, and C three temperature detectors 4 are installed indoors. Also in this case, the azimuth | direction of the installation place of each temperature detector 4 is measured by the process similar to the above by the heating operation in azimuth | direction measurement mode.
[0027]
Then, after measuring the azimuth, as shown in FIG. 6, the azimuth θAs of the installation location of the temperature detector 4 where the blowing direction of the warm air is A, the azimuth θBs of the installation location of the temperature detector 4 of B, and C The air blowing direction is controlled to change within a predetermined range including the orientation θCs of the installation location of the temperature detector 4. In this case, in the region near the orientations θAs, θBs, θCs of the installation locations of the temperature detectors 4, the change angular velocity in the blowing direction is slowed down and the air is sent to the orientations θAs, θBs, θCs of the installation locations of the temperature detectors 4. The time during which the air is blown in the other direction is longer than the time during which the air is blown in the other direction. The temperature detector 4 of C near the other end through the direction corresponding to the temperature detector 4 of the middle B from the direction corresponding to the temperature detector 4 of A located near the one end of the variable range of the blowing direction. After the air blowing direction is changed to the direction corresponding to, the air blowing direction is quickly returned to the direction corresponding to the temperature detector 4 of A so that the air suspension time to the installation location of the temperature detector 4 is not prolonged. To.
[0028]
Further, as shown in FIG. 7A, when variations occur in the detected temperatures TAs, TBs, and TCs (average temperatures) of the three A, B, and C temperature detectors 4, the detection of each of these temperature detectors 4 is performed. The deviations between the temperatures TAs, TBs, TCs and the set temperature YT are compared, and as shown in FIG. 7B, the change angular velocity in the blowing direction in the region near the orientations θAs, θBs, θCs of the installation locations of the temperature detectors 4 Is controlled so as to be delayed by the temperature detector 4 having a large deviation. In the illustrated example, the deviation between the detected temperature and the set temperature increases in the order of the temperature detector 4 of A, the temperature detector 4 of C, and the temperature detector 4 of B, and the change angular velocity in the blowing direction is also detected by the temperature of A. The temperature detectors 4 and C are delayed in the order of the temperature detector 4 and the temperature detector 4 of B. As a result, the time for blowing air in the direction of the installation location of the temperature detector 4 having a large deviation between the detected temperature and the set temperature becomes longer than the time for blowing air in the direction of the installation location of the temperature detector 4 having a small deviation. The temperature difference at the installation location of the detector 4 can be quickly eliminated, and a comfortable heating feeling can be obtained at the installation location of each temperature detector 4.
[0029]
In addition, although the warm air heater 2 of the said embodiment can change the ventilation direction of a warm air only to a horizontal direction, if it can change also up and down, the direction of the installation place of the temperature detector 4 is an up-down direction. It is possible to measure three-dimensionally including the air and to control the direction of the warm air in three dimensions. In order to three-dimensionally measure the orientation of the location where the temperature detector 4 is installed, the lateral direction of the location where the temperature detector 4 is installed based on the time-series data of the detected temperatures collected by changing the direction of warm air to the lateral direction. After obtaining the azimuth, the temperature direction of the temperature detected by the temperature detector 4 is changed by changing the hot air blowing direction in the vertical direction in the horizontal direction in accordance with the horizontal direction of the installation location of the temperature detector 4. Data may be collected and the vertical direction orientation of the installation location of the temperature detector 4 may be obtained from this data. In addition, the temperature of the temperature detector 4 is sampled by changing the temperature of the hot air in the horizontal direction while changing the direction of the warm air in the horizontal direction at a relatively fast angular velocity, and collecting the time series data of the temperature detected by the temperature detector 4. It is also possible to obtain the horizontal direction azimuth and the vertical direction azimuth of the place at the same time.
[0030]
Moreover, in the said embodiment, although the detected temperature data of the temperature detector 4 are transmitted to the controller 3 of the warm air heater 2, the control server for direction measurement is provided separately, and the temperature detector 4 of this control server is provided in this control server. The detected temperature data and the airflow direction data of the hot air heater 2 are transmitted, the direction of the installation location of the temperature detector 4 is measured by the control server, and this direction is transmitted to the controller 3 of the hot air heater 2. Anyway.
[0031]
As mentioned above, although embodiment which applied this invention to the control apparatus of the ventilation direction in the warm air heater 2 was described, this invention is applicable similarly as a control apparatus of the ventilation direction in the air conditioning apparatus for air_conditioning | cooling or air conditioning. .
[Brief description of the drawings]
FIG. 1 is a plan view showing an installation example of a temperature detector in an apparatus of the present invention.
FIG. 2 is a flowchart showing a process for measuring the orientation of the installation location of the temperature detector.
FIGS. 3A and 3B are graphs showing changes in the temperature detected by the temperature detector in the direction measurement process at the location where the temperature detector is installed, and FIG. 3B are changes in the air blowing direction in the direction measurement process at the location where the temperature detector is installed. Graph showing.
FIG. 4 is a graph showing a change in a blowing direction during heating after azimuth measurement.
FIG. 5 is a plan view showing another installation example of the temperature detector in the device of the present invention.
FIG. 6 is a graph showing changes in the air blowing direction during heating after azimuth measurement.
7A is a graph showing variations in temperature detected by each temperature detector during heating after azimuth measurement. FIG. 7B is a graph showing changes in the blowing direction when the temperature variations in FIG. 7A occur. Graph.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Room 2 ... Warm air heater 3 ... Controller (measurement means, wind direction control means) 4 ... Temperature detector

Claims (5)

A portable temperature detector that can be installed at any location in the room where air conditioning equipment that performs at least one of heating and cooling is disposed;
A measuring means for measuring the orientation of the location of the temperature detector with respect to the air conditioner,
A wind direction control means for controlling the air blowing direction from the air conditioner with reference to the direction measured by the measuring means,
The measurement means obtains the temperature data detected by the temperature detector in time series while continuously changing the air blowing direction from the air-conditioning apparatus , at least twice with changing the angular velocity of the blowing direction. The temperature detected by the temperature detector is blown from the air-conditioning apparatus, with one value of the angular velocity of the change in the blowing direction being k1, the other value being k2, and the angular velocity of the change in the blowing direction being k1. The temperature detected by the temperature detector is measured with the orientation of the air blowing direction from the air-conditioning device at the time of θ1 and the angular velocity of the change in the blowing direction at k2 when the temperature corresponding to the air is reached. Assuming that the orientation of the air blowing direction from the air conditioning device at a time corresponding to the temperature of air blown from the conditioning device is θ2, the orientation θs of the temperature detector installation location is
θs = (k2 × θ1−k1 × θ2) / (k2−k1)
Direction control device in an air conditioning apparatus and obtaining by. When the temperature detector is one, the wind direction control means controls the air blowing direction so that the air blowing direction from the air conditioner matches the direction of the installation location of the temperature detector. The wind direction control apparatus in the air conditioning apparatus of Claim 1 . When the number of the temperature detectors is one, the wind direction control means changes the air blowing direction from the air conditioner in a predetermined range including the direction of the installation location of the temperature detector, and the temperature detector The air direction control device for an air conditioner according to claim 1, wherein the air blowing direction is controlled so that a time during which the air is blown in the direction of the installation place is longer than a time during which the air is blown in the other direction. When there are a plurality of the temperature detectors, the measuring means measures the direction of the installation location of each temperature detector with respect to the air conditioner, and the wind direction control means determines the direction of air blowing from the air conditioner. The air temperature changes within a predetermined range including all the orientations of the installation locations of the temperature detectors, and the air is blown in such a way that the air blown in the orientations of the installation locations of the temperature detectors is longer than the air blown in other directions. The wind direction control device for an air-conditioning apparatus according to claim 1, wherein the direction is controlled. The wind direction control means compares the deviation between the detected temperature and the set temperature with respect to the plurality of temperature detectors, and installs the temperature detector with a small deviation in time to blow in the direction of the installation location of the temperature detector with a large deviation. The air direction control device for an air-conditioning apparatus according to claim 4 , wherein the air blowing direction is controlled so as to be longer than the time of air blowing in the direction.

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