JP2016000908A - door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door capable of accurately displaying an opening and closing state of a sash.SOLUTION: A door 1 of this invention includes a motor 7 for opening and closing a sash 5, a control section 9 for controlling driving of the motor 7, a position sensor 11 provided on a frame 3 and detecting approach of the sash 5, and a display section 13. The control section 9 includes an electric current detection section 19 for detecting an electric current value of the motor 7, and a timer 29, and displays that the sash 5 is in an opening state on the display section 13 when the electric current detection section 19 detects an electric current value higher than a set electric current value Ibefore a lapse of prescribed time t1 after the position sensor 11 detects the sash in an approach state, and displays that the sash is in a closing state on the display section 13 when the electric current detection section 19 detects the electric current value higher than a set electric current value Iafter a lapse of the prescribed time t1.

Description

  The present invention relates to doors such as sashes and doors.

  Doors that use a motor to open and close the shoji are known. In this type of door, when the current detection unit detects the current value flowing through the motor and detects a current value higher than the set current value, the display unit displays that the shoji is in the closed state.

None

  However, if an obstacle such as a twig is sandwiched while the shoji is closing, the shoji is in the closed state because the current detector detects a current value higher than the set current value even though the shoji is still open. There was a problem that rain was blown from the gap between the doors due to such erroneous display.

  Then, an object of this invention is to provide the door which can display correctly the opening / closing state of a shoji.

  The invention according to claim 1 includes a motor that opens and closes the shoji, a control unit that controls driving of the motor, a position sensor that is provided on the frame and detects the approach of the shoji, and a display unit, and the control unit includes: It has a current detection unit that detects the current value of the motor and a timer, and after the position sensor detects a shoji that is in the approaching state, the current detection unit sets a current value higher than the set current value before a predetermined time elapses. When it is detected, the display unit displays that the shoji is in the open state, and when the current detection unit detects a current value higher than the set current value after a predetermined time or more has elapsed, the display unit indicates that the shoji is in the closed state. It is a door characterized by displaying.

According to the first aspect of the present invention, after the position sensor detects the approach of the shoji during the closing operation of the shoji, a predetermined time is required until the shoji is closed. When the detection unit detects a current value higher than the set current value, it is displayed as an open state, and when it is not closed because an obstacle is caught during the closing operation of the shoji, it is in the open state. Is displayed so that the open / close state of the shoji can be accurately displayed. As described above, since the open / closed state of the shoji can be accurately displayed, it is possible to prevent rain from being blown because it is erroneously displayed as the closed state even though the obstacle is not yet closed.
Since the position sensor is provided in the frame and the current detection unit and the timer are provided in the control unit, the configuration and control are simple.
Since the position sensor detects the approach of the shoji and can absorb variations due to sensitivity, mounting accuracy, etc., the work for adjusting the mounting position of the position sensor becomes unnecessary, and the workability is good.

It is a graph which shows the relationship between the operation time at the time of the closing operation of the door concerning 1st Embodiment of this invention, and a detection electric current with the operation state of a door. It is a block diagram which shows the structure of the door concerning 1st Embodiment of this invention. It is a flowchart which shows the control at the time of the closing operation of the door concerning 1st Embodiment of this invention. It is a figure which shows the PWM modulation | alteration of the drive current of the door concerning 1st Embodiment of this invention. It is a figure which shows the display of the door controller concerning 1st Embodiment of this invention with the open / closed state of a door, (a) is an open state of a door, (b) is a state in closing operation, (c) A closed state It is. It is a graph which shows the relationship between the operation time at the time of the closing operation of the door concerning 2nd Embodiment of this invention, and a detection electric current with the operation state of a door. It is a flowchart which shows the control at the time of the closing operation of the door concerning 2nd Embodiment of this invention.

Embodiments of the present invention will be described below with reference to the accompanying drawings. First, the first embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 5, the door 1 according to the first embodiment is an awning window, and the frame 3 is provided with three shojis 5 in the vertical direction. Each shoji 5 is opened and closed simultaneously with respect to the frame 3 by an interlocking mechanism.
In the following description, in order to facilitate understanding of the present invention, as shown in FIG. 1 and FIG. 2, it corresponds to any one of the three shojis 5, for example, the top shoji 5. The relationship with the frame 3 will be schematically extracted and described.
As shown in FIG. 2, the door 1 includes a motor 7 that opens and closes the shoji 5, a control unit 9, a position sensor 11 provided on the frame 3, and a display unit 13. In this embodiment, the display unit 13 is provided in the controller 17.
The motor 7 is connected to the power supply unit 15 and is driven by a current supplied from the power supply unit 15.
The position sensor 11 detects the shoji 5 in the approaching state. In the present embodiment, the position sensor 11 is a magnetic sensor and detects the magnetism of the magnet 31 provided on the shoji 5. The position sensor 11 does not need to detect the exact position of the shoji 5 and, for example, in the case of the present embodiment, the sensing error is a maximum of 10 mm.

The control unit 9 includes a current detection unit 19, a current comparison unit 21, a drive control unit 23, an open / close determination unit 25, a modulation unit 27, and a timer 29.
The current detection unit 19 detects the current value of the current flowing through the motor 7 and sends a detection signal of the detected current value to the current comparison unit 21. The unit of the current value is ampere.
As shown in FIG. 1, the current comparison unit 21 detects the drive current value detected by the current detection unit 19 for each of the preset closing current value I _L and the obstacle detection current value I _LC during the closing operation. Compare whether Im is high or not. Deadline current I _L during the closing operation, a current value for performing deadline when the sliding door 5 fully closed, the obstacle detection current value I _LC during closing operation is deadline current value I _L given below The current value of the value.
Drive control unit 23, the current value deadline drive current value Im of the comparison by the current comparator unit 21 I _L, and whether high relative obstacle detected current value I _LC of the closed operating state, position sensor 11 Ya In response to the detection signal from the open / close determination unit 25, the motor 7 is controlled to continue or stop.
As shown in FIG. 2, the drive control unit 23 is connected to the modulation unit 27 and drives the motor 7 based on a control signal from the modulation unit 27. The modulation unit 21 sets the closing speed of the shoji 5 and performs PWM control (pulse width modulation) on the current supplied to the motor 7 when closing the shoji 5 to set a predetermined DR (duty ratio). doing. In the PWM control, as shown in FIG. 4, the ratio between the ON time Ton and the OFF time Toff in the fixed period T is set to 0 to 100%. For example, DR is 90% when the modulation degree is low, and DR is 20% when the modulation degree is high. When the modulation degree is small, the driving torque is larger than when the modulation degree is large.
The open / close determination unit 25 determines whether the shoji is in an open state or a closed state, and receives a drive or stop signal from the drive control unit 23 and a signal indicating whether or not a predetermined time has elapsed from the timer 29. In response, it is determined whether the shoji 5 is in the open state.
The timer 29 counts a preset predetermined time t1. As shown in FIG. 1, the predetermined time t <b> 1 is the time from when the position sensor 11 detects that the shoji 5 is approaching until the position M where the shoji 5 hits the tight material provided on the frame 3. It is. A plurality of counts for the predetermined time t1 are set according to the closing speed of the shoji 5. For example, when the closing speed of the shoji 5 (the moving speed of the door) is 5 mm / s, t1 is 2 seconds, and when the closing speed of the shoji 5 is 2.5 mm / s, t1 is 4 seconds. It is.

The controller 17 includes an operation unit 33 and a setting unit 35 in addition to the display unit 13 described above. As shown in FIG. 5, the controller 17 is attached to the side of the frame 3, controls the opening / closing of the door 1 (window) in each room, and displays the opening / closing state of each door 1 on the display unit 13.
The display unit 13 displays the date and time, the state of rain with or without rain, and the room temperature.
Moreover, the open / closed state of the window 1, the window 2, the window 3, and the window 4 provided in each room is displayed. ◯ provided on the left of each of the windows 1 to 4 is a display lamp 37, and white ◯ shown in FIG. 5A is a state where the display lamp 37 is lit and the window is open. At the same time, the characters “open” or “closed” indicate whether the windows 1 to 4 are open or closed on the right side of each window 1, and in FIG. 5A, each window is open.
In FIG.5 (b), the display lamp 37 shown to the left of each window 1-window 4 is shown with the hatch, and this hatch is the state where the display lamp 37 is blinking, and it is in the closing operation or the opening operation Is shown. That is, in FIG.5 (b), each window 1-4 is in the state opened while closing.
In FIG. 5 (c), each display lamp 37 is indicated by a black circle, the display lamp 37 is turned off, and the left side of the display of each of the windows 1 to 4 is in a closed state with the letters “closed”. It is displayed.
The operation unit 33 includes an open button 33a and a close button 33b. When the buttons 33a and 33b are pressed, a drive signal is issued to the drive control unit 23 of the control unit 9 shown in FIG. Open / close operation. The controller 17 controls opening / closing of an arbitrary window. For example, when the window 2 is selected (pressed) and the close button 33b is pressed, the window 2 is closed, and each of the windows 1 to 4 is selected and the close button 33b is selected. When is pressed, each window 1 to window 4 is closed.
The setting unit 35 inputs and changes the modulation degree DR in the modulation unit 27, and sets or changes the deadline current value I _L and the obstacle detection current value I _LC during the closing operation. Further, the setting unit 35 can set or change the open extension time t1.

Next, opening / closing control of the door 1 according to the present embodiment will be described. First, a door closing operation will be described with reference to FIGS. 1 and 3. In addition, in the following description, although it is the control performed for every window (door) of the windows 1-4, control of the control part 9 about arbitrary one of these windows is demonstrated.
In FIG. 3, it is determined whether or not a closing operation signal is received in step S1, and when a closing operation start signal is received, a closing operation is started in step S2, and the process proceeds to step S3. The determination of the start of the closing operation in step S1 is made by detecting that the closing operation button 33b of the controller 17 shown in FIG. 5 has been pressed, and the closing operation in step S2 is the closing operation set in the drive control of the drive control unit 23. To start. When the closing operation is started in step S2, the drive control unit 23 shown in FIG. 2 issues a drive signal to the motor 7, and a current is supplied from the power supply unit 15 to the motor 7 so as to close the shoji 5 (FIG. 1 ( b)). The drive control unit 23 closes the shoji 5 at a low speed by the PWM control of the modulation unit 27. The closing speed of the shoji 5 is, for example, 2.5 mm / s.
In step S3, it is determined whether or not the position sensor 11 provided in the frame 3 has detected the approach of the shoji 5, and if the approach of the shoji 5 is detected, the process proceeds to step S4. The process proceeds to step S5. As shown in FIG. 1C, the position sensor 11 detects the magnetism of the magnet 31 provided on the shoji 5 when the shoji 5 approaches.
In step S4, it is determined whether or not a predetermined time t1 between FIGS. 1C and 1D has elapsed. If the predetermined time t1 has elapsed, the process proceeds to step S6, and the predetermined time t1 has not elapsed. In this case, the process proceeds to step S5.
In step S5, it is determined whether or not an obstacle detection current value I _LC (see FIG. 1) has been detected, and the obstacle detection current value I _LC is detected as indicated by a broken line and symbols E1 and E2 in FIG. Since the foreign object or the like is sandwiched during the closing operation, the process proceeds to step S7, the closing operation of the shoji 5 is stopped, and the display lamp of the display unit 13 of the controller 17 as shown in FIG. 37 is turned on and “open” is displayed, and the control is terminated.
In step S6, the drive control unit 23 sets the PWM control to DR 100% to drive the motor 7, and proceeds to step S8. In step S6, the closing speed of the shoji 5 is increased. That is, as shown in FIG. 1, the closing speed of the operation time t2 is, for example, 2.5 mm / s, and the closing speed of the shoji after t2 is, for example, 5 mm / s.
In step S8, changes the current value to be compared by the current comparator 21 from the obstacle detected current value I _LC deadlines current value I _L, the process proceeds to step S9.
Step S9 repeatedly determines whether it detects a deadline current I _L in, proceeds only to step S10 when it is detected deadline current value I _L.
In step S10, the closing operation of the shoji 5 is stopped, and the display lamp 37 of the display unit 13 of the controller 17 is turned off and "closed" is displayed as shown in FIG. .

When the shoji 5 is opened, by pressing the open button 33a of the controller, an open operation drive signal is issued to the drive control unit 23, and a current in the direction opposite to the closing operation Im is supplied to the motor 7 so that the shoji The motor 7 is driven to open 5. Then, when detecting the deadline current I _L or more current at a current comparator 21, and stops driving of the drive control unit 23 to end the opening operation. Then, on the display unit 13, as shown in FIG. 5A, the display lamp 37 is turned on and “open” is displayed.

Next, the effect of the door 1 concerning this Embodiment is demonstrated.
As shown in FIG. 1, according to the door 1 according to the present embodiment, after the position sensor 11 detects the approach of the shoji 5 during the closing operation of the shoji 5, the predetermined time t1 until the shoji 5 is closed. Therefore, as shown in steps S4, S5, and S7 of FIG. 3, the current detection unit 19 sets a current value higher than the obstacle detection current value (set current value) _ILC before the predetermined time t1 elapses. When it is detected, it is displayed as an open state, and when it is not closed because an obstacle is caught during the closing operation of the shoji, it is displayed as an open state. It can be displayed accurately. Thus, since the open / closed state of the shoji 5 can be accurately displayed, it is possible to prevent rain from being blown because the closed state is erroneously displayed even though it is not yet closed due to an obstacle being pinched.
As shown in FIG. 2, since the position sensor 11 is provided in the frame 3 and the current detection unit 19, the current comparison unit 21, and the timer 29 are provided in the control unit 9, the configuration and control are simple.
The position sensor 11 detects the approach of the shoji 5 and can absorb variations due to sensitivity, mounting accuracy, etc., so that the work for adjusting the mounting position of the position sensor 11 becomes unnecessary, and the workability is good.

As shown in FIG. 1, shoji 5 to the position M strikes tight material, than the deadline current value I _L with shoji 5 slows the PWM control closing speed of the sliding door 5 than after passing the position M strikes tight material Since the obstacle detection current value _ILC is detected, the pinching force of the obstacle or the like can be reduced, and safety and noise reduction can be achieved when a human body or an obstacle is pinched.
Since the setting unit 35 can change the obstacle detection current value I _LC , the deadline current value I _L , and the PWM duty ratio (modulation degree), it is easy to set and change these according to the type of door and usage conditions. Can be.
Furthermore, when outright open and when the deadline, and detects the high current value I _L than the obstacle detected current value I _LC, even without fully opened sensors and fully closed sensor, etc., can be reliably door deadlines and open cut .

Other embodiments of the present invention will be described below. In the embodiments described below, parts having the same operational effects as those of the above-described first embodiment are denoted by the same reference numerals. A detailed description of the portion is omitted, and the following description will mainly describe differences from the first embodiment.
6 and 7 show a door 1 according to the second embodiment. In the second embodiment, the shoji 5 is closed with the normal current Im from the start to the end of the closing operation without performing PWM control on the closing speed of the shoji 5 in the first embodiment. Therefore, the control flow of FIG. 8 does not have steps corresponding to steps S6 and S8 shown in FIG. 3 of the first embodiment.
Also, the current comparator 21, as shown in step S5 and step S9 in FIG. 8, compares the detected current only current value I _L, and the deadline current value and the obstacle detected current value to the same current value I _L This is different from the first embodiment described above.

According to the second embodiment, except for the effect so as to detect a small obstacle detected current value I _LC than the effect closing sliding door 5 and Deadline current I _L by the PWM control, the first embodiment described above The same effect as that of the embodiment can be obtained.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention.
For example, the door 1 may be a sash such as a protruding sash, an inward sash, a rotating sash, an opening door, a sliding door, a partition, or the like, and may be a door that is opened and closed electrically.
The display unit 13 may display only by the characters “open” and “closed”, and the display lamp 37 is not limited to being lit or extinguished, but is red when the shoji is open and green when the shoji is closed. In this way, the display may be displayed with different colors.
The display unit 13 is not limited to being provided in the controller 17, and may be provided separately from the controller 17 in the frame 3 or a position adjacent to the frame 3 to display the open / close state of the shoji 5.
The position sensor 11 is not limited to detecting the magnetic field of the magnet 31 provided on the shoji 5, but the shoji 5 shields the limit switch to which the switch is input when it comes into contact with the shoji 5 and the light path by the photoelectric tube. It may be detected.

1 unit 5 shoji 7 motor 9 control unit 11 position sensor 13 display unit 19 current detection unit 21 current comparison unit 29 timer I _LC obstacle detection current value (set current value)
I _L deadline current value (set current value)
t1 time

Claims (1)

  A motor that opens and closes the shoji, a control unit that controls the driving of the motor, a position sensor that is provided on the frame and detects the approach of the shoji, and a display unit, and the control unit detects the current value of the motor. If the current detection unit detects a current value higher than the set current value after a predetermined time has elapsed after the position sensor detects the shoji in the approaching state, the display unit opens the shoji. The door is characterized by displaying the state, and when the current detection unit detects a current value higher than the set current value after a predetermined time or more has elapsed, the display unit displays that the shoji is in the closed state.

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