KR20200056076A - Ceiling fan and control method thereof - Google Patents

Abstract

A ceiling fan, which is installed in a wall or a ceiling of a room, according to an embodiment of the present invention includes: an operation switch selectively providing commercial power to other electric devices installed in the room and switching on or off the electric devices; a power supply connected to the operation switch and providing an input voltage; a modulation circuit connected to the operation switch and modulating an input frequency; and a microcomputer having an input part to which the power supply and the modulation circuit are connected and controlling a motor of the ceiling fan, wherein the microcomputer determines the number of switching of the operation switch through the input frequency inputted to the input unit.

Description

Ceiling fan and its control method {CEILING FAN AND CONTROL METHOD THEREOF}

The present invention relates to a ceiling fan and its control method.

In general, a flow generator is a device that provides a user with air flow generated by driving a fan. The flow generating device may be variously classified according to the flow generating principle, function, and installation method.

In the flow generator, a device installed on an indoor wall or ceiling to generate air flow is called a ceiling fan. The ceiling fan has less power consumption than an air conditioner or a general fan, and thus can provide an economical advantage to the user.

In general, a ceiling fan includes a driving motor that provides power and a plurality of blades connected to the driving motor. In addition, the plurality of blades may rotate to generate air flow in the interior wall or ceiling. According to this, since the ceiling fan can circulate indoor air, the indoor temperature can be lowered or raised.

Unlike the flow generator that is disposed on the ground and concentrates air flow to a local space, the ceiling fan can force the flow of a relatively large volume of air at a higher position than the user. Therefore, the ceiling fan can provide a feeling of comfort to the user by circulating the air throughout the room to even the temperature distribution in the room.

On the other hand, since the ceiling fan is installed at a high location in the room, such as a ceiling, a wireless remote control is mainly used as an operation device that allows a user to control the operation of the ceiling fan.

However, if the user loses the wireless remote control, the user is very inconvenient to directly access and operate the ceiling fan located on the ceiling, etc., and thus, there is a need for a method for easily controlling the operation of the ceiling fan.

That is, when the wireless remote control cannot be used due to failure, loss, etc., the conventional ceiling fan has a problem that causes inconvenience to the user because no auxiliary operation device or operation method is provided to control the operation of the user even temporarily. have.

Prior literature information related to this is as follows.

KR 10-1501640 B1, Ceiling fan

An object of the present invention is to provide a ceiling fan and a control method thereof that can solve a limited problem of means for controlling the operation of a ceiling fan installed at a high location indoors such as a ceiling.

Another object of the present invention is to provide an auxiliary control means and a control method so that the ceiling fan can be easily operated under special circumstances such as failure or loss of the main operating device of the ceiling fan.

Another object of the present invention is to provide a ceiling fan and a control method thereof, which can prevent and sense malfunction of a product and stably control even in a power supply environment in which the supplied voltage is unstable.

Another object of the present invention is to provide a control method of a ceiling fan that can improve reliability and accuracy more when determining whether a switch is on or off (ON / OFF) by amplitude of a signal waveform or a drop in voltage level. Is to do.

Ceiling fan according to an embodiment of the present invention, selectively providing a commercial power to other electrical equipment installed in the room, the operation switch for switching to be on or off; A power supply connected to the operation switch and providing an input voltage; A modulation circuit connected to the operation switch and modulating an input frequency; And the power supply and the modulation circuit is connected to the input unit, and includes a microcomputer to control the motor of the ceiling fan, the microcomputer, through the input frequency input to the input unit, to determine the switching frequency of the operation switch It is characterized by.

In addition, the microcomputer is characterized in that the motor is operated only when the number of switching times is greater than or equal to a preset operation reference value (S).

In addition, the microcomputer is characterized in that when the switching frequency is less than the operation reference value (S), it is determined to control the other electrical equipment.

In addition, the microcomputer is characterized in that when the input frequency is less than or equal to the first set value, the operation switch is determined to be off.

In addition, the microcomputer is characterized in that when the input frequency exceeds the first set value and satisfies a second set value or greater than the first set value, the operation switch is determined to be in an on state.

In addition, the first set value is 40Hz, and the second set value is 70Hz.

In addition, the microcomputer measures an input time at which an input frequency that satisfies the first set value or less is maintained, and when the input time exceeds a preset time, initializes the number of switching times of the operation switch. do.

In addition, the modulation circuit is characterized in that the signal input from the commercial power supply is converted to a square wave and output.

In addition, the modulation circuit may include a zero crossing (Zero Crossing) circuit.

In addition, the power supply is characterized in that it provides input power to the microcomputer even if the connection to the operation switch is disconnected.

In addition, the power supply may include a switching mode power supply (SMPS).

In addition, the power supply and the modulation circuit is characterized in that the parallel connection.

In another aspect, a method of controlling a ceiling fan according to an embodiment of the present invention includes an operation switch that is switched to provide commercial power to an electric device installed in a room, a power supply and a modulation circuit connected to the operation switch, In the ceiling fan including a microcomputer connected to the power supply and the modulation circuit to the input unit and a motor controlled to rotate the blade by the microcomputer, the input frequency input to the input unit of the microcomputer is off of the operation switch Determining whether it is equal to or less than a first set value indicating a state; Determining whether the holding time of the input frequency is equal to or less than a preset allowable time when the input frequency is less than or equal to the first set value; Determining whether the input frequency exceeds the first set value and is less than or equal to a second set value indicating the ON state of the operation switch; And when it is determined that the input frequency exceeds the first set value and the second set value or less, adding and storing the number of switching times of the operation switch.

In addition, when the holding time of the input frequency exceeds the preset allowable time, the step of initializing the switching number of the operation switch may be further included.

In addition, when it is determined that the input frequency is less than the first set value or exceeds the second set value, the step of initializing the switching number of the operation switch may be further included.

In addition, when it is determined that the input frequency exceeds the first set value and the second set value or less, the method may further include determining whether the holding time of the input frequency is equal to or less than a preset allowable time.

In addition, when the holding time of the input frequency is less than the preset allowable time, it is characterized in that it returns to the step of determining whether the input frequency is less than or equal to the first set value.

In addition, when the holding time of the input frequency exceeds the preset allowable time, it may further include the step of outputting the stored switching number.

In addition, the step of obtaining the number of wind strength defined by the difference between the output switching number and the operation reference value (S) for operating the motor; And varying the number of rotations of the motor according to the number of wind speeds.

According to the present invention, the user has the advantage of being able to easily operate the ceiling fan without the main control device of the ceiling fan (for example, a wireless remote control).

According to the present invention, since the signal of the AC (AC) power is input as a square wave while passing through the modulation circuit, the advantage of accurately determining the ON or OFF timing of the operation switch There is this.

According to the present invention, the input frequency input to the microcomputer than when determining the number of switching of the operation switch by detecting the difference value of the DC voltage (DC Voltage) level from the input signal provided from the AC (AC) power ( Since it is possible to determine the ON (ON) or OFF (OFF) timing of the operation switch through a change in Hz), it is possible to determine the correct number of times of switching even in an environment where an unstable voltage or frequency such as a power failure can be input. .

In addition, since the total switching number is determined or initialized by determining the time (input time) between the ON (ON) or off (OFF) timing of the operation switch, there is an advantage in improving reliability in determining the switching number.

In addition, since the time between the ON and OFF times of the operation switch satisfies a preset allowable time, it is counted as the number of switching times of the operation switch, and thus, as with indoor lighting devices, It has the advantage of preventing control collisions with devices that can be connected together.

In addition, since the operation of the ceiling fan can be controlled by an operation switch installed on a wall, which is easily accessible to the user, there is an advantage of improving user convenience.

In addition, since the wind power of the ceiling fan can be adjusted according to the switching frequency of the operation switch, there is an advantage in that it is possible to easily control the essential function of the ceiling fan even in a temporary situation without a main operation device.

1 is a conceptual view showing a ceiling fan installed according to an embodiment of the present invention
2 is a configuration diagram for the control of the ceiling fan according to an embodiment of the present invention
Figure 3 is a flow chart showing a control method of a ceiling fan according to an embodiment of the present invention
4 is a graph exemplarily showing the relationship between the number of switching of the operation switch and the operation of the sealing fan according to an embodiment of the present invention
5 is a flow chart showing a control method for adjusting the wind strength of the ceiling fan according to an embodiment of the present invention

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. It should be noted that in adding reference numerals to the components of each drawing, the same components have the same reference numerals as possible even though they are displayed on different drawings. In addition, in describing embodiments of the present invention, when it is determined that detailed descriptions of related well-known configurations or functions interfere with understanding of the embodiments of the present invention, detailed descriptions thereof will be omitted.

In addition, in describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the component from other components, and the nature, order, or order of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected to or connected to the other component, but another component between each component It should be understood that may be "connected", "coupled" or "connected".

1 is a conceptual view showing a state in which a ceiling fan is installed according to an embodiment of the present invention, and FIG. 2 is a configuration diagram for controlling a ceiling fan according to an embodiment of the present invention.

1 and 2, the ceiling fan 1 according to an embodiment of the present invention may be installed on the wall or ceiling of the room R. And in the room (R) where the ceiling fan (1) is installed, a lighting device (5) that provides light, a commercial power source (8) and a lighting device (5) that can provide power to the lighting device (5) Operation switch 100 for controlling the may be installed.

The lighting device 5 may include a fluorescent lamp, an incandescent lamp, or an LED (LED) lamp. In addition, the lighting device 5 may be installed at a position close to the ceiling fan 1. For example, the lighting device 5 may be installed on the wall or ceiling where the ceiling fan 1 is located.

The commercial power source 8 may include an alternating current (AC) power source. As an example, the commercial power supply 8 can be understood as a power supply that is supplied to the home.

The operation switch 100 may electrically connect or disconnect the commercial power supply 8 and the lighting device 5 through a switching operation. That is, the operation switch 100 may selectively provide power to the lighting device 5.

Therefore, the operation switch 100 may turn on or off (ON / OFF) the power of electric devices according to the user's operation. Here, the ON / OFF switching operation of the operation switch 100 may be defined as a switching control.

Meanwhile, the operation switch 100 according to an embodiment of the present invention is not limited to only means for controlling the lighting device 5. In detail, the operation switch 100 may be a control means for controlling power of other electric devices installed in the room.

In summary, the operation switch 100 may be provided as a power control means for any one electric device installed in the room R together with the ceiling fan 1. In one example, the operation switch 100 may be provided as a means for controlling the operation of the fan.

In addition, the operation switch 100 according to an embodiment of the present invention may not only perform switching control for providing power to any one electrical device, but also perform switching control for other electrical devices. In one example, the operation switch 100 may also perform control of the ceiling fan 1 together with the lighting device 5. Detailed description thereof will be described later.

The operation switch 100 may be installed at a location where the user can easily access and operate. In one example, the operation switch 100 may be located on a side wall forming an indoor space. In addition, the operation switch 100 may be located at a height of about 1 (m) from the ground.

The operation switch 100 may be provided to perform switching control according to a user's pressing or pressing direction. In one example, the operation switch 100 may include a button type, push type switch.

Meanwhile, the ceiling fan 1 according to the exemplary embodiment of the present invention may include a shaft coupled to an indoor ceiling or a wall and a cover surrounding the outside of the shaft. The shaft may be coupled to an indoor ceiling or wall surface to provide a fixing force. In addition, the cover may form an interior space to accommodate a plurality of parts therein. In one example, the plurality of parts may include an electric component for driving the ceiling fan 1.

The ceiling fan 1 may further include a blade that can rotate to forcibly flow the indoor air and a motor 50 that drives the blade.

The motor 50 may include a brushless DC (BLDC) motor.

Further, the motor 50 may include an outer rotor type. In one example, the stator of the motor may be connected to the shaft, and the rotor of the motor may be positioned outside the stator to rotate.

The blade may be connected to the motor 50. And the blade can be rotated by the operation of the motor 50.

A plurality of blades may be provided. In one example, the blade may include a main blade extending radially with respect to the central axis of the ceiling fan 1 and an auxiliary blade inserted to have a predetermined slope in the main blade.

The main blade may form a hole that opens up and down at an end facing the central axis. In addition, the auxiliary blade may be located in the hole. Accordingly, the auxiliary blade can force air flow in an area close to the central axis of the ceiling fan 1.

The air flow generated by the rotation of the blade may circulate the air in the indoor space in which the ceiling fan 1 is installed.

The ceiling fan 1 may further include a motor driver 20 for controlling the motor 50.

The motor driver 20 may control the rotation direction and speed of the motor 50. In addition, the motor driver 20 may provide a voltage level required for the motor 50.

Hereinafter, a circuit configuration for controlling the ceiling fan 1 according to an embodiment of the present invention and its operation will be described in detail with reference to FIG. 2.

The ceiling fan 1 may further include a micom (10, MICOM). The microcomputer 10 may also be referred to as a microcontroller.

The microcomputer 10 may detect or process a signal input to the input unit of the microcomputer 10 by switching control of the operation switch 100. Here, the signal input to the input unit of the micom 10 may be defined as an input frequency. The unit of the input frequency is defined in hertz (Hz).

The microcomputer 10 determines the change in the input frequency so that the operation switch 100 is switched from the on (ON) or off (OFF) state to the off (OFF) or on (ON) state (timing) Can judge.

According to this, the micom 10 may determine the number of times the user has operated the operation switch 100, that is, the number of switching times, based on the switching operation time point of the operation switch 100.

Here, the switching number may be defined as the number of times the periodic switching operation of the operation switch 100 is counted once. For example, the number of times the user switches the operation switch 100 from an ON state to an OFF state, and then turns the operation switch 100 from an OFF state to an ON state. By switching to the state, the case of returning to the state of the original operation switch 100 can be defined as the number of times counted once.

According to this, there is an advantage in that it is possible to distinguish the control of another electric device interlocked with the operation switch 100 and the control of the ceiling fan 1. For example, the user can turn off the power of the lighting device 5 by pressing the operation switch 100 once to turn it off when the operation switch 100 is in an on state.

In this case, the micom 10 may not perform any control on the ceiling fan 1 because the number of switching times is not counted. As a result, it is possible to avoid a control collision with peripheral electric devices interlocked with the operation switch 100.

The micom 10 may be connected to the motor driver 20. In addition, the micom 10 may control the motor 50 through the motor driver 20. For example, the micom 10 may control the motor driver 20 and the motor 50 by PWM control.

In addition, the micom 10 may receive feedback regarding the operation of the motor 50 from the motor driver 20.

The microcomputer 10 may include a memory 13 for storing information and a timer 15 for measuring time.

The microcomputer 10 may read information stored in the memory 13 or write information to the memory 13.

In addition, the microcomputer 10 may detect the time by the timer 15. As an example, the micom 10 may determine a time at which the input frequency is maintained, that is, input times I1 and I2 using the timer 15.

Therefore, the microcomputer 10, the time between the time of switching from the ON (ON) to the OFF (OFF) state of the operation switch 100 and the time to switch from the OFF (OFF) to the ON (ON) state again By sensing, it can be compared with the reference information stored in advance in the memory (13).

Meanwhile, the ceiling fan 1 may further include a power supply 30 and a modulation circuit 40 connected to the operation switch 100.

The power supply 30 and the modulation circuit 40 may be disposed between the operation switch 100 and the microcomputer 10. In addition, the power supply 30 and the modulation circuit 40 may be connected in parallel.

The input part of the power supply 30 may be connected to the output part of the operation switch 100 by a wire. Accordingly, the commercial power supply 8 may be selectively connected according to the operation of the operation switch 100.

In addition, the output of the power supply 30 may be connected to the input of the microcomputer 10 by wire. In addition, another output of the power supply 30 may be connected to the input of the motor driver 20 by wire. Accordingly, the power supply 30 may provide voltages to the microcomputer 10 and the motor driver 20.

The power supply 30 may include a switching mode power supply (SMPS). In addition, the power supply 30 may perform a function of receiving the commercial power 8 and supplying a voltage required for the micom 10 or the motor driver 20.

That is, the power supply 30 may provide the required input voltages to the microcomputer 10 and the motor driver 20, respectively. For example, the power supply 30 may provide a voltage of 5V to the microcomputer 10, and a voltage of 24V to the motor driver 20.

Here, the power supply 30 may provide an input voltage to the microcomputer 10 without being dependent on an on / off operation (switching control) of the operation switch 100.

In detail, an energy reservoir (eg, a capacitor) may be provided in the internal circuit of the power supply 30. Therefore, the power supply 30 stores energy when connected to the commercial power 8 according to the on / off operation (or switching control) of the operation switch 100, and the power supply 30 is connected to the commercial power 8 In the event of a break, it can release stored energy.

According to this, the power supply 30 may provide a continuous input voltage to the microcomputer 10. For example, even when the operation switch 100 and the power supply 30 are disconnected, the power supply 30 may provide a voltage of 5V to the input of the microcomputer 10.

As a result, the input power of the microcomputer 10 may be maintained despite the on / off operation of the operation switch 100. Therefore, the micom 10 can determine the input frequency, input times I1 and I2, which will be described later, even in the OFF operation of the operation switch 100. In addition, the micom 10 may determine the number of switching times of the operation switch 100.

Meanwhile, the input portion of the modulation circuit 40 may be connected to the output portion of the operation switch 100 by wire. Therefore, it can be selectively connected to the commercial power supply 8 according to the on / off operation (switching control) of the operation switch 100.

In addition, the output portion of the modulation circuit 40 may be connected to the input portion of the microcomputer 10 by wire. Therefore, the frequency output through the modulation circuit 40 may be input to the microcomputer 10.

According to this, the input frequency input to the microcomputer 10 may be different according to the ON (ON) or OFF (OFF) state of the operation switch 100.

For example, when the operation switch 100 is in an ON state, an output frequency of the modulation circuit 40 may be input to the microcomputer 10. Therefore, the micom 10 can recognize the output frequency of the modulation circuit 40 as an input frequency.

The modulation circuit 40 may modulate the frequency of the input signal. In addition, the modulation circuit 40 may find a state in which no voltage is applied to a specific terminal and output a signal. As an example, the modulation circuit 40 may include a zero crossing (Zero Crossing) circuit.

The modulation circuit 40 may convert a waveform of an AC signal input by the commercial power supply 8 into a waveform of a DC signal. For example, the output signal of the modulation circuit 40 may be output as a square wave having a square wave.

The microcomputer 10 may receive a signal output from the modulation circuit 40.

The microcomputer 10 may sense a square wave signal input through the modulation circuit 40. For example, the micom 10 may continuously acquire information on an input frequency by detecting and determining an input square wave signal.

In addition, the microcomputer 10 may determine an on / off switching time point of the operation switch 100, that is, a switching timing using the input frequency.

According to this, the microcomputer 10 detects the difference in the DC voltage level in the AC signal of the commercial power supply 8 without the modulation circuit 40 and determines the switching timing of the operation switch 100. , Switching timing can be accurately detected in an unstable power supply environment.

Therefore, it is possible to accurately determine the number of switching times of the operation switch 100 to be described later, thereby improving control reliability.

Meanwhile, the modulation circuit 40 may be referred to as an alternating current (AC) sensing circuit.

3 is a flow chart showing a method of controlling a ceiling fan according to an embodiment of the present invention, and FIG. 4 is a graph exemplarily showing the relationship between the number of switching of an operation switch and the operation of a sealing fan according to an embodiment of the present invention to be.

According to an embodiment of the present invention, the user operates the ceiling fan 1 by operating the operation switch 100 capable of replacing the main control means (for example, a wireless remote control) of the ceiling fan 1 Can be controlled or controlled.

Hereinafter, a control method of the ceiling fan 1 using the operation switch 100 will be described in detail with reference to FIGS. 3 and 4.

The user can operate the operation switch 100 to control the ceiling fan 1. That is, the user can switch the operation switch 100 to control the ceiling fan 1.

For example, when the indoor lighting device 5 is turned on, that is, when the operation switch 100 is in an ON state, the user can switch the operation switch 100 to an OFF state.

When the user operates the operation switch 100, the ceiling fan 1 may determine whether the detected input frequency is equal to or less than the first set value. (S10)

The first set value may be stored in advance in the memory 13.

The first set value may be defined as a reference frequency value input to the micom 10 when the operation switch 100 is in an OFF state. For example, the first set value may be set to 40 Hz.

The microcomputer 10 can detect the input frequency being input in real time. In addition, the microcomputer 10 may determine whether the input frequency input to the input unit is less than the first set value.

The microcomputer 10 may determine that the operation switch 100 is switched to an OFF state (at time t0 in FIG. 4) when the input frequency is equal to or less than the first set value.

When the input frequency is less than or equal to the first set value, the ceiling fan 1 can detect a first input time I1 at which an input frequency less than or equal to the first set value is maintained. For example, the micom 10 may detect a time for which the input frequency is maintained by the timer 15.

In addition, the ceiling fan 1 may determine whether the first input time I1 is equal to or less than a preset allowable time (S20).

The preset allowable time may be stored in advance in the memory 13.

The preset allowable time may be set to define a user's intention to operate the operation switch 100. For example, the preset allowable time may be set to 2 seconds. When the first input time I1 satisfies within 2 seconds, the time from the time when the user switches the operation switch 100 from on to off to the time when the user switches the off to on again is 2 It can be understood to be within seconds.

That is, the user will have to perform the switching of the operation switch 100 to control the ceiling fan 1 within the preset allowable time.

When the first input time I1 exceeds the preset allowable time, the micom 10 may determine that the user wants to operate another interlocking electric device other than the ceiling fan 1. In this case, the ceiling fan 1 may initialize the switching number N and the input time. (S90)

When the first input time I1 is less than or equal to the preset allowable time, the ceiling fan 1 determines whether the input frequency input to the input unit exceeds the first set value (S30) or less than the second set value. You can. (S31)

That is, the micom 10 may determine whether the input frequency input to the input unit exceeds the first set value and is less than the second set value. (S30, S31)

On the other hand, if the input frequency is maintained below the first set value in step S30, the process returns to step S20 to detect the first input time I1.

The second setting value may be stored in advance in the memory 13.

The second set value may be defined as a maximum frequency value input to the micom 10 when the operation switch 100 is in an ON state. For example, the second set value may be set to 70 Hz.

If the input frequency value exceeds 70 Hz in the on state of the operation switch 100, the microcomputer 10 determines that it is an abnormal state, initializes the switching number and input time, and enters the standby mode. That is, when the operation switch 100 is in an ON state, the input frequency may satisfy conditions exceeding 40 Hz and not more than 70 Hz.

In the microcomputer 10, when the input frequency satisfies the conditions above the first set value and below the second set value, the operation switch 100 is switched to the ON state (at t1 in FIG. 4). ).

In this case, the first input time I1 may be understood as a time (I1 = t1-t0) between time points of switching operation of the operation switch 100.

On the other hand, when the input frequency exceeds the second set value, the micom 10 may determine that the power environment is abnormal or that the user is not trying to operate the ceiling fan 1. At this time, the micom 10 may initialize the switching number N and the input time so as not to count the switching of the operation switch 100. (S90)

When the input frequency satisfies the conditions above the first set value and below the second set value, the ceiling fan 1 may add and store the number of switching times N once (S40).

In detail, the micom 10 may read the switching number N stored in the memory 13 and add it once, and store the added switching number N + 1 in the memory 13 again. For example, when the operation switch 100 is operated for the first time or when the switching number N is initialized, the switching number N stored in the memory 13 will be 0.

In addition, when the input frequency satisfies the conditions above the first set value and below the second set value, the ceiling fan 1 inputs exceeding the first set value and below the second set value The second input time I2 at which the frequency is maintained can be detected.

In addition, the ceiling fan 1 may determine whether the second input time I2 exceeds a preset allowable time (S50).

The preset allowable time may be set equal to the preset allowable time in the previous step S20. For example, the preset allowable time may be set to 2 seconds.

Of course, the preset allowable time for the second input time I2 may be set differently from the preset allowable time for the first input time I1. For example, a preset allowable time for the second input time I2 may be set to be shorter than a preset allowable time for the first input time I1. According to this, when the operation switch 100 is in an on state, the user can more easily and quickly determine whether the operation switch 100 is for controlling the ceiling fan 1 or for controlling other electric devices. That is, there is an advantage that can provide a faster response to the operation of the operation switch 100 intended by the user.

When the second input time I2 is less than the preset allowable time, the micom 10 may determine that the user's trailing operation is performed (at the time t2 in FIG. 4) and return to the above-described step S10.

At this time, the second input time (I2) may be understood as the time (I2 = t2-t1) between the switching operation timing of the operation switch 100.

On the other hand, when the second input time I2 exceeds the preset allowable time, the micom 10 may determine that the operation of the user's operation switch 100 has ended. Time exceeding t5)

That is, when the second input time I2 exceeds the preset allowable time, the microcomputer 10 may output the switching number N stored in the memory 13 as the final switching number N. Yes (S60)

At this time, the number of switching times N stored in the memory 13 may be the number of switching times N recorded in the memory 13 at the most recent time following the above-described step S40.

In addition, the micom 10 may determine whether the output switching number N is greater than or equal to an operation reference value S for operating the ceiling fan 1 (S70).

Here, the operation reference value S may be determined as a value for preventing a control collision with other electric devices interlocked with the operation switch 100.

For example, the operation reference value S may be 3 and stored in the memory 13. Therefore, when the output switching number (N) is 2, the micom 10 may determine that the user is controlling other interlocked electric devices other than the ceiling fan 1. That is, the micom 10 may not output a signal for controlling the ceiling fan 1.

The micom 10 may operate or control the ceiling fan 1 when the final output switching number N is greater than or equal to the operation reference value S. In one example, the micom 10 may control the ceiling fan 1 to operate when the last output switching number N is equal to the operation reference value S. (S80)

That is, when the final output switching number (N) is equal to the operation reference value (S), the microcomputer 10 controls the power supply 30 to supply power to the motor driver 20, The motor 50 may be operated by controlling the motor driver 20.

In addition, the ceiling fan 1 may control the flow rate provided by the blade by controlling the motor 50 when the switching number N of the final output is greater than the operation reference value S. That is, the wind strength of the ceiling fan 1 can be adjusted.

5 is a flow chart showing a control method for adjusting the wind strength of the ceiling fan according to an embodiment of the present invention.

Referring to FIG. 5, the micom 10 may output a wind speed singular number defined by a difference (N-S) between the last output switching number N and the operation reference value S. (S81)

In detail, the number of wind speeds defined by the difference (N-S) between the last output switching number (N) and the operation reference value (S) is shown in Table 1 below.

Difference between switching frequency and operating reference value (N-S) Output wind strength singular Operation information of the ceiling fan 1 stored in the memory 13

0
Step 1
Start of operation of ceiling fan (1) and weak wind
(If the ceiling fan (1) is running, keep it current)
One

Stage 2
Paralysis
2

Stage 3
gale

Referring to Table 1, when the difference (N-S) between the last output switching number (N) and the operation reference value (S) is 0, the wind power number is output in one step.

On the other hand, in the first step, if the ceiling fan 1 is in operation before the user's manipulation, it may be controlled to maintain the previously operated wind strength singular.

In addition, when the difference (N-S) between the switching number (N) of the last output and the operation reference value (S) is 1, the number of wind speeds is output in two stages. In addition, when the difference (N-S) between the last output switching number (N) and the operation reference value (S) is 2, the number of wind power stages is output in 3 stages.

When the wind speed number is output, the ceiling fan 1 may match the information stored in the memory 13 in advance with the wind speed number. (S82)

In detail, the micom 10 may match the number of revolutions of the motor 50 corresponding to the number of wind speeds. For example, the number of revolutions of the motor 50 corresponding to the first step may be stored as the number of revolutions (RPM) forming a weak wind. And the number of revolutions of the motor 50 corresponding to step 2 may be stored as the number of revolutions forming a heavy wind, and the number of revolutions of the motor 50 corresponding to step 3 may be stored as the number of revolutions forming a strong wind. have.

The number of revolutions of the motor 50 according to the number of wind speeds may be previously stored in the memory 13.

In addition, the ceiling fan 1 may vary the number of revolutions of the motor 50 according to the matched number of revolutions. (S83)

For example, when the number of output wind speeds is one step, the micom 10 may control the motor 50 to rotate with the number of rotations of the motor 50 matching the first step.

According to the step of determining the input time (I1, I2) and the step of determining the operation reference value (S) and the total number of switching (N), and the control of other electrical devices linked to the operation switch 100 There is an advantage that can completely control the control of the ceiling fan (1).

And even if the environment that provides power such as instantaneous power failure, abnormal voltage, or unstable power supply is unstable, the microcomputer 10 according to the embodiment of the present invention is input frequency through the modulation circuit 40 as a square wave. Since it is possible to determine the number of times of switching, it is possible to improve the accuracy, reliability, utilization, and stability of the ceiling fan 1 controlled through the operation switch 100.

For example, if it is determined whether to switch on / off using a voltage change (eg, a drop value) generated when switching from a signal input from a commercial power supply, an unstable power supply having a different voltage level In the environment, the determination of the number of times of switching may be inaccurate and difficult to trust. In addition, when a voltage outside the range of a preset voltage value is input, there is a problem in that no judgment can be made regarding on / off switching.

However, according to an embodiment of the present invention, it is possible to more accurately determine whether the switching is performed even in an unstable power supply environment in which the magnitude of the voltage (or the amplitude of the waveform) is changed because the input frequency or frequency is used.

As another example, when a user presses or switches once while the operation switch 100 is on, the power of the lighting device 5 is switched by turning the operation switch 100 to an off state when a predetermined time has elapsed. Can be blocked. In this case, the micom 10 of the ceiling fan 1 may determine that the user has operated the operation switch 100 to control the lighting device 5 rather than to control the ceiling fan 1. have.

In summary, according to an embodiment of the present invention, the micom 10 can determine the intention of the user described above through the determination of the input times I1 and I2 and the total number of switching times, so that the operation switch 100 and Controlled collisions with interlocking peripheral electrical devices can be avoided.

In addition, according to the present invention, the user, even in a situation in which the remote control, which is the main control means of the ceiling fan 1 is lost or broken, operates the operation switch 100 which is generally installed on the interior wall surface to operate the lighting device 5 It is possible to control the function of the ceiling fan 1 by simply operating according to the above-described method.

1: Ceiling fan 10: Micom
20: motor driver 30: power supply
40: modulation circuit

Claims (19)

In the ceiling fan installed on the interior wall or ceiling,
An operation switch selectively providing commercial power to other electric devices installed in the room and switching on or off;
A power supply connected to the operation switch and providing a voltage;
A modulation circuit connected to the operation switch and modulating an input frequency; And
The power supply and the modulation circuit is connected to the input unit, and includes a microcomputer that controls the motor of the ceiling fan,
The microcomputer,
Ceiling fan, characterized in that, through the input frequency input to the input unit, the switching frequency of the operation switch is determined.
According to claim 1,
The micom, the ceiling fan, characterized in that to operate the motor only when the switching frequency is greater than or equal to the preset operation reference value (S).
According to claim 2,
The micom, if the switching frequency is less than the operating reference value (S), ceiling fan characterized in that it is determined to control the other electrical equipment.
According to claim 1,
The micom, if the input frequency is less than the first set value, the ceiling fan characterized in that the operation switch is determined to be off.
The method of claim 4,
The microcomputer,
When the input frequency exceeds the first set value and satisfies the second set value or less greater than the first set value, the ceiling fan characterized in that the operation switch is determined to be on.
The method of claim 5,
The first set value is 40Hz, the second set value is 70Hz, characterized in that the ceiling fan.
The method of claim 4,
The microcomputer,
The input time at which the input frequency that satisfies the first set value or less is maintained is measured,
When the input time exceeds a preset time, the ceiling fan, characterized in that for initializing the switching number of the operation switch.
According to claim 1,
The modulation circuit, the ceiling fan characterized in that the signal input from the commercial power is converted to a square wave and output.
According to claim 1,
The modulation circuit is a ceiling fan including a zero crossing (Zero Crossing) circuit.
According to claim 1,
The power supply is a ceiling fan characterized in that it provides input power to the micom even if the connection to the operation switch is disconnected.
According to claim 1,
The power supply is a ceiling fan including a switching mode power supply (SMPS).
According to claim 1,
The power supply and the modulation circuit is a ceiling fan, characterized in that connected in parallel.
An operation switch that is switched to provide commercial power to an electric device installed in the room, a power supply and a modulation circuit connected to the operation switch, a blade by the microcomputer and the microcomputer to which the power supply and the modulation circuit are connected to an input unit In the ceiling fan including a motor controlled to rotate the,
Determining whether an input frequency input to the input of the microcomputer is equal to or less than a first set value indicating an off state of the operation switch;
Determining whether the holding time of the input frequency is equal to or less than a preset allowable time when the input frequency is less than or equal to the first set value;
Determining whether the input frequency exceeds the first set value and is less than or equal to a second set value indicating the ON state of the operation switch; And
And if it is determined that the input frequency exceeds the first set value and the second set value or less, adding and storing the switching frequency of the operation switch, and controlling the ceiling fan.
The method of claim 13,
And if the holding time of the input frequency exceeds the preset allowable time, initializing the switching number of the operation switch.
The method of claim 13,
And if it is determined that the input frequency is equal to or less than the first set value or exceeds the second set value, initializing the switching number of the operation switch.
The method of claim 13,
And determining whether the holding time of the input frequency is equal to or less than a preset allowable time when the input frequency is determined to exceed the first set value and the second set value or less.
The method of claim 16,
If the holding time of the input frequency is less than the preset allowable time, the control method of the ceiling fan, characterized in that returning to the step of determining whether the input frequency is less than the first set value.
The method of claim 16,
And when the holding time of the input frequency exceeds the preset allowable time, outputting the stored number of switching times.
The method of claim 18,
Obtaining a number of wind speeds defined as a difference between the output switching number and an operation reference value (S) for operating the motor; And
And controlling the number of revolutions of the motor according to the number of wind speeds.

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