JPH0195246A - Air speed detecting control device for air conditioner - Google Patents

Abstract

PURPOSE:To extend a life of a battery in a remote-controlled unit and improve operation of the unit by a method wherein an air speed sensor is operated in case that either a set flap angle or a predetermined amount of air is varied and in case that a blowing air temperature is varied. CONSTITUTION:A flap angle of a main body 11 of an air conditioner and an amount of air blown from the main body 11 of the air conditioner are set by a setting means 6. The first operating means may receive an output from setting means 6 and operate an air speed sensor 4 within a remote controller 10 in case that the predetermined amount of air is varied so as to detect an air speed. The second operating means may discriminate directly or indirectly if the blowing temperature is varied or not in response to a blowing temperature itself of air sent out of the main body 11 of the air conditioner or an operating condition of a compressor cooperating with the blowing temperature. In case that the blowing temperature is varied, the air speed sensor 4 is operated. Accordingly, the number of operation of the air speed sensor is reduced and a life of the battery in the remote-controlling device can be extended.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an operation detection and control device for an air conditioner having a wireless remote control operation unit (hereinafter referred to as a remote control).

<Conventional technology> Conventionally, air conditioners have a remote control with a built-in wind speed sensor that constantly detects the wind speed in the living area and controls the blower in the air conditioner based on this wind speed. (Japanese Unexamined Patent Publication No. 59-221545).

By the way, wind speed sensors generally use the self-heating of the thermistor to detect the wind speed by detecting the degree of heat taken away from the thermistor, which is related to the magnitude of the wind speed, by resistance change, and therefore consumes a large amount of power. For this reason, the above-mentioned conventional remote controller is connected to the air conditioner body via a cord to supply power.

However, when the remote control is connected to the air conditioner main body using a cord in this way, there are problems in that it is difficult to move the remote control, and the cord can cause people to get their feet caught, resulting in very poor operability.

For this reason, attempts have been made to reduce the current flowing through the wind speed sensor, drive the remote controller containing the wind speed sensor with batteries, and make it wireless.

<Problem to be solved by the invention> However, if the remote control with a built-in wind speed sensor is made wireless and driven by dry batteries, no matter how much the current is reduced, as long as the current is constantly flowing, the wind speed sensor will not work. There is a problem that power consumption increases and battery life is shortened. On the other hand, if the number of batteries used is increased in order to extend the battery life, there is a problem in that the size of the remote control becomes larger.

Therefore, the purpose of this invention is to reduce power consumption, extend the battery life of the remote control, and improve operability by driving the wind speed sensor built into the wireless remote control only when the wind speed changes. There is a particular thing.

Means for Solving the Problems> In order to achieve the above object, the air conditioner wind speed detection control device of the present invention is provided with a flap of the air conditioner main body 11, as illustrated in FIG. A setting means 6 for setting the angle and the air volume from the air conditioner main body 2, a wireless remote control operating unit 10 having at least a room temperature sensor 1, a wind speed sensor 4, and a data transmission circuit 8; a first operating means that receives the output of the air flow sensor, determines whether or not the flap angle or air volume setting has changed, and operates the wind speed sensor 4 when either the flap angle or the air volume has changed; It is characterized by comprising a second operation means that directly or indirectly determines whether or not the temperature of the air outlet from the harmonizer main body 11 has changed, and operates the wind speed sensor 4 when the temperature of the air outlet has changed. There is.

<Operation> The flap angle of the air conditioner main body 11 and the amount of air blown out from the air conditioner main body 11 are set by the setting means 6. The first operating means receives the output from the setting means 6 and operates the wind speed sensor 4 in the wireless remote controller 10 to detect the wind speed when the flap angle or air volume setting changes. Further, the second operating means directly or indirectly determines whether or not the air outlet temperature has changed based on the air outlet temperature itself or the operating state of the compressor related to the air outlet temperature. The wind speed sensor 4 is operated when the air temperature changes.

If the flap angle or air volume setting changes in this way, the wind speed in the living area will naturally change, so the wind speed sensor will need to be activated. Also, if the air outlet temperature changes,
Since the wind speed reaching the living area changes depending on the magnitude of the blowing temperature as shown in FIGS. 4(a) and (b), the wind speed sensor can be operated. Conversely, when the wind speed does not change, the operation of the wind speed sensor is stopped to prevent battery consumption.

In this way, by operating the wind speed sensor in the wireless remote control only when necessary, power consumption is reduced and battery life is extended.

<Example> Hereinafter, the present invention will be explained in detail with reference to illustrated embodiments.

FIG. 1 is a block diagram of a wireless remote control 10, in which 1 is a room temperature sensor, 2 is a humidity sensor, 3 is a radiation sensor that detects radiant heat, 4 is a wind speed sensor that detects wind speed using the self-heating of a thermistor, Reference numeral 5 denotes a wind speed detection circuit that drives the wind speed sensor 4, and 6 sets the amount of air blown out from an air conditioner (not shown), sets the flap angle of the air conditioner body, and sets the temperature of the air conditioner and living area σ. A setting switch 7 as a setting means indicates the room temperature sensor t, i degree sensor 2. Radiation sensor 3. Upon receiving the signals from the wind speed sensor 4 and the setting switch 6, the circuit performs arithmetic processing as shown in FIG. 2 to operate the wind speed detection circuit 5, and also controls the air conditioner body 11 shown in FIG. This is a microcomputer that outputs necessary data to the data transmission circuit 8, and these are driven by a dry battery built into the remote control 10.

Therefore, the microcomputer 7 has a room temperature sensor l.
Based on the difference ΔTrs between the room temperature Tr detected by the setting switch 6 and the set temperature Ts set by the setting switch 6, the air conditioner body l
The rotation frequency of the compressor (not shown) on the l side is controlled as shown in FIG. That is, in the memory built into the microcomputer 7, the temperature is changed from zone A to zone F according to the magnitude of the difference ΔTrs between the room temperature Tr and the set temperature Ts.
It is divided into zones, and depending on which zone the set temperature falls in, a signal indicating the rotational frequency of the compressor is output to the data transmission circuit 8, and the data transmission circuit 8 sends the data to the air conditioner main body 11. The air conditioner body 11
controls the compressor drive circuit based on this data,
The rotation frequency of the compressor is controlled.

The operation of the wind speed detection control device of the air conditioner with the above configuration is
This will be explained based on the diagram.

First, in step Sl, the microcomputer 7 determines whether or not this air conditioner has started operating based on a signal from an operation start switch (not shown). 5 is operated to energize the wind speed sensor 4 to detect the wind speed.

If it is determined in step S that the operation has not just started, the process proceeds to step S, and based on the signal from the setting switch 6, it is determined whether the flap angle and air volume have been changed. This step S.

If it is determined that the flap angle or air volume has been changed, this means that the wind speed has changed, so proceed to step S, output a signal to the wind speed detection circuit 5 to detect the wind speed, and operate the wind speed sensor 4. , receives a signal representing the wind speed from the wind speed sensor 4.

If it is determined in step S that the flap angle or air volume setting has not been changed, proceed to step S3.
The difference ΔTrs between the room temperature Tr detected by the room temperature sensor 1 and the set temperature Ts set by the setting switch 6 is calculated, and it is determined which zone shown in FIG. 3 in which this difference ΔTrs is stored in advance. do. Then step S
4, it is determined whether the zone determined last time and the zone determined this time have changed, and if the zone determined last time and the zone determined this time have changed, proceed to step Ss, and the wind speed detection circuit 5, the wind speed sensor 4 is operated to detect the wind speed. This is done because when the operating zone of the compressor changes, the capacity of the compressor changes, and when that capacity changes, the blowout temperature naturally changes.As shown in Figure 4, when the blowout temperature is high, This is because the blown air rises and is difficult to reach the remote controller 10, whereas if the blown air temperature is low, the blown air descends and reaches the remote controller, and the wind speed changes depending on the blown temperature.

In other words, if the wind speed is detected when the compressor zone changes, that is, the compressor's rotational frequency changes, it will be possible to detect changes in the wind speed due to changes in the outlet temperature, which will reduce the number of times the wind speed needs to be detected. .

In this way, the wind speed can be adjusted when it is determined that three wind speeds have changed: when the flap angle changes, when the air volume setting changes, and when the compressor rotation frequency changes and the blowout temperature changes. By detecting this, the period during which the wind speed sensor 4 is operated becomes extremely short, and the life of the battery of the wireless remote controller 10 can be significantly extended. Also, since it is wireless, this remote control is extremely easy to operate.

Note that the sensible temperature is calculated based on the wind speed detected by the wind speed sensor 4, the humidity detected by the humidity sensor 2, the radiant heat detected by the radiation sensor 3, and the room temperature detected by the room temperature sensor l, and the compressor is informed based on this. The frequency is controlled using the following method.

In the above embodiment, the state in which the blowout temperature has changed is detected by a change in the rotational frequency of the compressor, but the blowout temperature is directly detected and the wind speed sensor 4 is operated when the blowout temperature changes based on this blowout temperature. You may also do so.

<Effects of the Invention> As is clear from the above, the wind speed detection control device for an air conditioner according to the present invention detects the first
Operate the wind speed sensor in the remote control by the operating means,
In addition, since the second operating means operates the wind speed sensor when the air outlet temperature changes, the number of times the wind speed sensor operates is reduced, extending the battery life of the remote control.Also, since the remote control is wireless, it is easy to operate. It has the advantage of being good.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a remote control according to an embodiment of the present invention.
Fig. 2 is a flowchart of the wind speed detection portion of an embodiment of the present invention, Fig. 3 is a diagram showing the relationship between the rotational frequency of the compressor and the difference between the room temperature and the set temperature, Fig. 4(a), (b
) is a diagram showing that the state of the wind sent out from the air conditioner changes depending on the blowing temperature. l... Room temperature sensor, 2... Humidity sensor, 3...
Radiation sensor, 4... Wind speed sensor, 5... Wind speed detection circuit, 6... Setting switch, 7... Microcomputer, 8- Data transmission circuit.

Claims (2)

[Claims] (1) Setting means for setting the flap angle of the air conditioner body (11) and the air volume from the air conditioner body (11) (
6), a wireless remote control operation unit (10) having at least a room temperature sensor (1), a wind speed sensor (4) and a data transmission circuit (8), and the setting means (6).
a first operation means that receives an output from the controller, determines whether the flap angle or air volume setting has changed, and operates the wind speed sensor (4) when either the flap angle or the air volume has changed; , a second operating means that directly or indirectly determines whether or not the temperature of the air outlet from the air conditioner main body (11) has changed, and operates the wind speed sensor (4) when the air outlet temperature has changed; A wind speed detection control device for an air conditioner, comprising: (2) The air conditioner body adjusts the rotational frequency of the compressor according to which zone the difference between the room temperature detected by the room temperature sensor (1) and the set temperature set by the setting means (6) falls. The second operating means includes a zone determining means for determining which zone the difference between the room temperature and the set temperature falls in, and a zone determining means for determining which zone the difference between the room temperature and the set temperature falls in and the zone in which the difference exists from the previous determination. Zone change determination means that determines whether or not there has been a change between the current determination and operates a wind speed sensor (4) when the zone containing the above difference has changed between the current determination and the previous determination. Claim 1
A wind speed detection control device for an air conditioner as described in 2.