KR100797127B1 - Ventilation control device of exhaust duct and method of displaying the state of charging voltage in the device - Google Patents

Abstract

The present invention relates to a ventilating control device of an exhaust duct for sensing a voltage state of a charging unit and displaying the result to the outside so that a user can recognize it from the outside, and a method of displaying the state of the charging voltage in the device.

The present invention includes a motor for driving a blocking plate for opening and closing the ventilation path in accordance with the power supplied from the power supply; A charging unit configured to charge power when the motor is stopped and the motor is stopped after the motor rotates, and supply the charged power to the motor when the power provided to the motor is cut off; Detects a supply state of power provided to the motor, and detects a voltage state of the charging unit when charging is performed in the charging unit or when the motor is stopped after supplying power to the motor from the charging unit; A control unit for outputting a control signal according to the detection result; And a display unit which displays the voltage state of the charging unit sensed by the control unit according to the control signal output from the control unit.

Description

Ventilation control device of exhaust duct and method of displaying charge voltage status in the device {APPARATUS FOR CONTROLLING VENTILATION OF EXHAUST DUCT AND METHOD FOR DISPLAYING STATE OF CHARGING VOLTAGE IN THE SAME}

1 is a side sectional view schematically showing a conventional damper device.

2 is a planar cross-sectional view schematically showing a conventional damper device.

Figure 3 is a block diagram showing the configuration of a ventilation control apparatus of the exhaust duct according to an embodiment of the present invention.

4 is a circuit diagram showing in detail the configuration of the ventilation control device of the exhaust duct shown in FIG.

5 is a flowchart illustrating a method of displaying a state of a charging voltage in a ventilation control apparatus of an exhaust duct according to an embodiment of the present invention.

6 is a flowchart illustrating a method of displaying the state of the charging voltage in the ventilation control device of the exhaust duct according to another embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: power supply 20: motor

30: charging part 40: switching part

50: control unit 60: display unit

The present invention relates to a ventilation control device of the exhaust duct and a method of displaying the state of the charging voltage in the device, and more particularly, by detecting the voltage state of the charging unit and displays the result to the outside to recognize the user from the outside The ventilation control device of the exhaust duct and the method for displaying the state of the charge voltage in the device.

Generally, a damper is installed in the exhaust duct connected to the kitchen's range hood and the toilet's toilet to seal the exhaust duct when the exhaust fan is not driven, and then operate when the exhaust fan is powered. It is provided with a ventilation device for opening the exhaust duct to ventilate.

1 and 2 are schematic side cross-sectional and flat cross-sectional views showing such a conventional damper, with a case 2 installed at an upper part in the exhaust duct 1, an upper end located inside the case 2, and a lower part being exhausted; A rotating shaft 3 is provided which penetrates the duct and is coupled to the lower portion of the exhaust duct 1.

A disc shaped stopper 4 is installed on the rotation shaft 3 inside the exhaust duct 1 to open and close the exhaust duct 1 when the rotation shaft 3 rotates, and the pinion 5 is coupled to the upper end of the rotation shaft 3. The rack 6 is engaged with the pinion 5, the electromagnet 7 is connected to one end of the rack 6, and the spring 8 is connected to the other end of the rack 6.

When power is not applied to the electromagnet 7, the rack 6 is pulled toward the spring 8 by the restoring force of the spring 8 so that the stopper 4 seals the exhaust duct 1, When power is applied to 7), the rack 6 is pulled to the opposite side of the spring 8 to open the stopper 4 so that the exhaust duct 1 is opened.

In the conventional damper having such a configuration, when the exhaust fan of the kitchen or toilet is turned on, the rack 6 is pulled in the direction of the arrow A while power is applied to the electromagnet 7, and thus the spring 8 is pulled. Since the pinion 5 is rotated and the rotation shaft 3 is rotated, the stopper 4 coupled thereto is rotated to open the exhaust duct 1.

At this time, when the power is turned off (OFF), the power applied to the electromagnet 7 is cut off, the rack 6 is pulled in the opposite direction to the arrow (A) by the restoring force of the spring (8), accordingly As the pinion 5 and the rotating shaft 3 are rotated in the opposite directions described above, the stopper 4 seals the exhaust duct 1.

The conventional damper as described above is further provided with a charging device for supplying emergency power, most of which is used to discharge the power charged in the capacitor, there is a problem in that it is only a one-time, or impossible to operate in the event of fire or overload.

In addition, as described above, it is difficult for the user or the outside to recognize the state of the power charged in the capacitor, which may cause the capacitor to be left in a discharged state or malfunction.

The present invention has been made to solve the above-described problems of the prior art, an object of the present invention is to detect the voltage state of the charging unit and to display the result to the outside of the ventilation of the exhaust duct so that the user can recognize it from the outside It is an object of the present invention to provide a control device and a method for displaying a state of a charging voltage in the device.

In order to achieve the above technical problem, the ventilation control apparatus of the exhaust duct according to the present invention, the motor for driving a blocking plate for opening and closing the ventilation path in accordance with the power supplied from the power supply; A charging unit configured to charge power when the motor is stopped and the motor is stopped after the motor rotates, and supply the charged power to the motor when the power provided to the motor is cut off; Detects a supply state of power provided to the motor, and detects a voltage state of the charging unit when charging is performed in the charging unit or when the motor is stopped after supplying power to the motor from the charging unit; A control unit for outputting a control signal according to the detection result; And a display unit which displays the voltage state of the charging unit sensed by the control unit according to the control signal output from the control unit.

In addition, the method for displaying the state of the charging voltage in the ventilation control device of the exhaust duct according to the present invention, the step of supplying power to the motor; If power is supplied to the motor, rotating the motor in a forward direction; Stopping the motor when a motor stop signal is input to the motor rotating in the forward direction; Starting charging in a charging unit when the motor is stopped; Detecting a state of a charging voltage when charging of the charging unit is completed; Comparing the sensed charging voltage with a preset reference voltage range; And displaying an abnormal state through the display unit when the detected voltage is out of the reference voltage range, and displaying a normal state through the display unit when the detected voltage is within the reference voltage range. It is done.

In addition, the method for displaying the state of the charging voltage in the ventilation control device of the exhaust duct according to the present invention, the step of shutting off the power supplied to the motor; Supplying power to a charging unit to the motor when the power supplied to the motor is cut off; When the power of the charging unit is supplied to the motor, rotating the motor in a reverse direction; Stopping the motor when a motor stop signal is input to the motor rotating in the reverse direction; Detecting a voltage state of a charging unit when the motor is stopped; Comparing the sensed voltage of the charging unit with a reference voltage range; And displaying an abnormal state through the display unit when the detected voltage is out of the reference voltage range, and displaying a normal state through the display unit when the detected voltage is within the reference voltage range. It is done.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

The configuration of the ventilation control device of the exhaust duct according to an embodiment of the present invention with reference to Figures 3 and 4, Figure 3 is a block showing the configuration of the ventilation control device of the exhaust duct according to an embodiment of the present invention. 4 is a circuit diagram showing in detail the configuration of the ventilation control device of the exhaust duct shown in FIG.

The ventilation control apparatus of the exhaust duct according to the exemplary embodiment of the present invention shown in FIGS. 3 and 4 includes a power supply unit 10, a motor 20, a charging unit 30, a switching unit 40, a control unit 50, and a display unit. (60).

The power supply unit 10 includes a voltage drop circuit 10A, a rectification / smoothing circuit 10B, and a constant voltage circuit 10C. The power supply unit 10 supplies power to the motor 20 and the controller 50, and the charging unit 30 is The charging unit 30 provides charging power so as to charge the power when the battery is in a chargeable state.

The voltage drop circuit 10A includes a resistor R1 connected in parallel with the frequency impedance of the capacitor C1 and a series resistor R2 for attenuation of noise of current.

The rectification / smoothing circuit 10B rectifies the voltage output from the voltage drop circuit 10A through the bridge diode BD1 and smoothes it through the capacitor C2.

The constant voltage circuit 10C maintains the voltage output from the rectification / smoothing circuit 10B at a constant voltage, but connects the zener diodes ZD1 and ZD2 in series to divide the voltage applied to the respective zener diode stages so that the motor 20 ) And the charging unit 30 and the control unit 50.

The motor 20 drives a blocking film (not shown) for opening and closing the ventilation path. At this time, the motor 20 is axially coupled to the blocking film (not shown) provided in the duct to open and close the blocking film.

The charging unit 30 includes a capacitor CB, a transistor Q1, a resistor R11, and a diode D1. Power is supplied from the power supply unit 10 to the motor 20 so that the motor 20 rotates. Then, when the motor stop signal is input and the motor 20 is stopped, the power is charged. When the power provided to the motor 20 is cut off, the charged power is supplied to the motor 20.

The capacitor CB charges the power of the charging unit 30, and the transistor Q1 conducts power to the capacitor CB when power is supplied from the power supply unit 10.

The resistor R11 causes an operation signal to be applied to the transistor 1 Q1, and the diode D1 supplies a voltage output from the transistor Q1 to the capacitor CB.

The switching unit 40 functions to switch to selectively supply power or charging power to the motor. The switching unit 40 includes a relay RLY, a switch SW1, and a switch SW2. When power is supplied from the power supply unit 10 under the control of 50), the motor is switched to rotate in the forward / reverse direction to supply power.

The relay RLY includes a relay contact RSW1 connected between the power supply unit 10 and the + terminal of the motor 20 and a relay contact RSW2 connected to the − terminal and the ground side of the motor 20.

The switch SW2 is connected to one side contact of the relay contact RSW2 to detect an operation state of the motor at the forward rotation of the motor 20, and input the signal to the controller 50.

The switch SW1 is connected to one side contact of the relay contact RSW2 to detect an operating state of the motor at the time of reverse rotation of the motor 20, and input the signal to the controller 50.

The controller 50 detects a supply state of the power provided to the motor 20, and when charging is performed in the charging unit 30, or after supplying power to the motor 20 from the charging unit 30, the motor 20. When is stopped, it detects the voltage state of the charging unit 30, and outputs a control signal according to the detection result.

When the voltage of the charging unit sensed by the controller 50 is out of a preset reference voltage range, an abnormal state is displayed through a display unit. When the voltage of the charging unit is within a preset reference voltage range, the normal state is displayed through the display unit. To be displayed.

In this case, the charging voltage is detected by the resistors R4 and R5 connected in series to the input terminal side of the controller 30. That is, when a voltage below a predetermined level is input to the controller 50 according to the capacitance values of the resistors R4 and R5, the charging voltage is determined to be low, and when a voltage above the predetermined level is input, the charging voltage is high or the overvoltage is increased. Judging from the input.

The display unit 60 displays the voltage state of the charging unit 30 detected by the control unit 50 according to the control signal output from the control unit 50, and may be a visual display device such as an LED or an LCD, or an acoustic device such as a speaker. It may be.

For example, the display unit 60 may display the LEDs of different colors according to respective cases in which the charging unit is in a normal state or an abnormal state when the power supplied to the motor is ON or OFF. It can be displayed through LEDs with different number of flashes or flashing at different time intervals.

Hereinafter, a method of displaying the state of the charging voltage in the ventilation control device of the exhaust duct according to an embodiment of the present invention with reference to Figure 5, Figure 5 is a ventilation control of the exhaust duct according to an embodiment of the present invention A flow chart illustrating a method of displaying the state of charge voltage in a device.

As shown in Figure 5, the method for displaying the state of the charging voltage in the ventilation control apparatus of the exhaust duct according to an embodiment of the present invention, supplying power to the motor from the power supply (S510).

At this time, the voltage of the power supply is lowered and supplied by the voltage drop circuit 10A of the power supply unit 10 shown in FIG. 4, rectified and smoothed through the rectification / smoothing circuit 10B, and the constant voltage circuit 10C. The voltage is divided and supplied through.

When power is supplied to the motor, the motor rotates in the forward direction (S520).

Subsequently, when the motor stop signal is input to the motor rotating in the forward direction, the motor stops (S530). At this time, the motor stop signal may be executed by a user's operation.

Next, when the motor is stopped, the charging unit starts charging (S540).

That is, like the charging unit 30 shown in FIG. 4, the voltage is dropped by the resistor R11 to apply the operating voltage of the transistor Q1 to the base to conduct a voltage from the collector to the emitter side, and through the diode D1. Charge the rechargeable battery (CB).

When charging of the charging unit is completed, the controller detects the state of the charging voltage (S550), and compares the detected charging voltage with a preset reference voltage range (S560).

If the detected voltage as a result of the comparison in step S560 is within the reference voltage range, a normal state is displayed through the display unit (S570). For example, the light emitting diode (LED) is repeatedly lit twice in succession.

When the detected voltage is out of the reference voltage range in step S560, an abnormal state is displayed through the display unit (S580). For example, the light emitting diode is repeatedly lit twice in succession.

Hereinafter, a method of displaying the state of the charging voltage in the ventilation control device of the exhaust duct according to another embodiment of the present invention with reference to Figure 6, Figure 6 is a ventilation control of the exhaust duct according to another embodiment of the present invention It is a flowchart showing a method of displaying the state of the charging voltage in the device, the description of the same parts as the description shown in Figure 5 will be omitted.

As shown in Figure 6, the method for displaying the state of the charging voltage in the ventilation control device of the exhaust duct according to another embodiment of the present invention, cuts off the power supplied to the motor from the power supply (S610).

When the power supplied to the motor is cut off in step S610, the power of the charging unit is supplied to the motor (S620). When the charging unit power is supplied to the motor in step S620, the motor rotates in the reverse direction (S630), and when the motor stop signal is input to the motor rotating in the reverse direction (S640).

When the motor is stopped in step S640, the controller detects the voltage state of the charging unit (S650), and compares the voltage of the charging unit detected in the step S650 with a reference voltage range (S660).

If the voltage detected as a result of the comparison in the step S660 is within the reference voltage range, the display device displays a normal state through the display unit (S670). If the voltage detected as a result of the comparison in the step S660 is out of the reference voltage range, the display unit is abnormal. The state is displayed (S680).

That is, when the power is cut off from the power supply, the relay contact shown in FIG. 4 returns and the relay contact connects the negative terminal of the rechargeable battery and the motor, and the voltage supplied from the rechargeable battery is passed through the motor through the relay contact and the switch. It is input to the controller.

At this time, the control unit determines that the discharge operation of the charging unit and the reverse rotation operation of the motor have been performed since the power is cut off. For example, the control unit repeatedly turns on the light emitting diode once briefly.

If an abnormality occurs in detecting the charging voltage of the charging unit, for example, the controller turns on the light emitting diode repeatedly one long time.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, the ventilation control apparatus of the exhaust duct according to the present invention and the method for displaying the state of the charging voltage in the apparatus, by detecting the voltage state of the charging unit and displays the result to the outside to be recognized by the user from the outside To help.

In addition, by displaying a normal state or an abnormal state according to the voltage state of the charging unit, it is possible to check or confirm the routine so that it can operate smoothly even in an emergency such as a fire.

Claims (9)

In the ventilation control device of the exhaust duct, A motor for driving a blocking plate to open and close the ventilation path according to the power supplied from the power supply unit; A charging unit configured to charge power when the motor is stopped and the motor is stopped after the motor rotates, and supply the charged power to the motor when the power provided to the motor is cut off; Detects a supply state of power provided to the motor, and detects a voltage state of the charging unit when charging is performed in the charging unit or when the motor is stopped after supplying power to the motor from the charging unit; A control unit for outputting a control signal according to the detection result; And And a display unit for displaying the voltage state of the charging unit detected by the control unit according to the control signal output from the control unit. The method of claim 1, And a switching unit which switches to selectively supply power or charging power to the motor. The method of claim 1, wherein the power supply unit A voltage drop circuit comprising a parallel resistor R1 connected in parallel with the frequency impedance of the capacitor C1, and a series resistor R2 for attenuation of noise of the current; A rectification and smoothing circuit rectifying the voltage output from the voltage drop circuit through the bridge diode BD1 and smoothing the voltage through the capacitor C2; The voltage output from the rectifying and smoothing circuit is maintained at a constant voltage, and the Zener diodes ZD1 and ZD2 are connected in series to include a constant voltage circuit configured to divide and supply voltage applied to each zener diode stage. Ventilation control device of the exhaust duct. The method of claim 1, wherein the charging unit A capacitor CB for charging a power supply; A transistor Q1 which conducts power to the capacitor CB when power is supplied from the power supply unit; A resistor R11 for applying an operation signal to the transistor Q1; And a diode (D1) for supplying the voltage output from the transistor (Q1) only to the capacitor (CB) side. The method of claim 2, wherein the switching unit A relay (RLY) comprising a first relay contact RSW1 connected between the power supply unit and the + terminal of the motor, and a second relay contact RSW2 connected to the − terminal and the ground side of the motor; A second switch (SW2) connected to one side contact of the second relay contact (RSW2), for detecting an operation state of the motor during forward rotation of the motor, and inputting the signal to the controller; And a first switch SW1 connected to one side contact of the first relay contact RSW1 to detect an operation state of the motor at the time of reverse rotation of the motor and input a signal to the controller. Ventilation control of exhaust duct. The display unit of claim 1, wherein the display unit. When the voltage of the charging unit sensed by the controller is out of a predetermined reference voltage range to display an abnormal state, and if the voltage of the charging unit is within a preset reference voltage range of the exhaust duct characterized in that Ventilation controls. The method of claim 6, wherein the display unit, When the power supply to the motor is ON or OFF, the charging part is displayed through LEDs of different colors, or the number of flashes or different times depending on the case of normal or abnormal state. Ventilation control device of the exhaust duct characterized in that it is displayed through the LED having a blink of the interval. In the method for displaying the state of the charging voltage in the ventilation control device of the exhaust duct having a motor for driving a blocking film for opening and closing the ventilation path, Supplying power to the motor; If power is supplied to the motor, rotating the motor in a forward direction; Stopping the motor when a motor stop signal by a user manipulation is input to the motor rotating in the forward direction; Starting charging in a charging unit when the motor is stopped; Detecting a state of a charging voltage when charging of the charging unit is completed; Comparing the sensed charging voltage with a preset reference voltage range; And And displaying the abnormal state through the display unit when the detected voltage is out of the reference voltage range, and displaying the normal state through the display unit when the detected voltage is within the reference voltage range. Method for displaying the state of the charging voltage in the ventilation control device of the exhaust duct. In the method for displaying the state of the charging voltage in the ventilation control device of the exhaust duct having a motor for driving a blocking film for opening and closing the ventilation path, Cutting off power supplied to the motor; Supplying power to a charging unit to the motor when the power supplied to the motor is cut off; When the power of the charging unit is supplied to the motor, rotating the motor in a reverse direction; Stopping the motor when a motor stop signal by a user manipulation is input to the motor rotating in the reverse direction; Detecting a voltage state of a charging unit when the motor is stopped; Comparing the sensed voltage of the charging unit with a reference voltage range; And And displaying the abnormal state through the display unit when the detected voltage is out of the reference voltage range, and displaying the normal state through the display unit when the detected voltage is within the reference voltage range. Method for displaying the state of the charging voltage in the ventilation control device of the exhaust duct.

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