JP2023158588A - Electrically-driven opening/closing body control device, electrically-driven opening/closing system, and program - Google Patents

Abstract

To provide a technology to easily set a position at which a shutter curtain should be stopped.SOLUTION: A motor 86 outputs a rotation power to a winding shaft capable of winding up a shutter curtain. A current value detection part 424 controls a current value for rotating the motor 86. The current value detection part 424 detects a current value output to the motor 86. A setting part 426 sets a rotation angle in a specific state of the shutter curtain based on change of the current value, which is detected by the current value detection part 424 and per unit change amount of a position of rotation of the motor 86, when the shutter curtain is fed out from the winding shaft 60.SELECTED DRAWING: Figure 3

Description

The present disclosure relates to opening/closing body technology, and relates to an electric opening/closing body control device, an electric opening/closing system, and a program for electrically opening/closing an electric opening/closing body.

Electric shutter devices require a mechanism to prevent people from accidentally being drawn into the shutter. In other words, if the operation of the shutter curtain is obstructed by an obstacle or the like, the motor may become overloaded, so there is a need for a device that detects an overload condition in which the motor is overloaded. For example, shutter curtain position information and current information related to motor load status are stored in association with each other, and if the current value measured during operation deviates from the current information corresponding to the position information at that time, overload The state is detected (for example, see Patent Document 1).

Japanese Patent Application Publication No. 2006-307471

When installing an electric shutter device, it is necessary to set the upper and lower limit positions of the shutter curtain. Generally, this setting requires complicated operations and is often performed by a professional.

The present disclosure has been made in view of these circumstances, and its purpose is to provide a technique for easily setting the position at which the shutter curtain should be stopped.

In order to solve the above problems, an electric opening/closing body control device according to an aspect of the present disclosure includes a motorized part that outputs rotational power to a winding shaft capable of winding up a shutter curtain, and a current value for rotating the motorized part. A control section that controls the current value, a current value detection section that detects the current value output to the motorized section, and a current value detection section that detects the current value when winding the shutter curtain on the winding shaft or when unwinding the shutter curtain from the winding shaft. a setting section that sets a rotation angle for a specific state of the shutter curtain based on a change in the current value detected in the section and a change in the current value per unit change in position during rotation of the motorized section; Equipped with

Note that any combination of the above components and the expressions of the present disclosure converted between methods, devices, systems, computer programs, or recording media on which computer programs are recorded are also valid as aspects of the present disclosure. be.

According to the present disclosure, the position at which the shutter curtain should be stopped can be easily set.

FIGS. 1A and 1B are diagrams showing the structure of a shutter system according to an embodiment. FIG. 2 is a diagram showing the internal structure of the shutter system of FIGS. 1(a)-(b). FIG. 1 is a block diagram showing the configuration of the shutter system of FIGS. 1(a)-(b). FIG. FIGS. 4(a) and 4(b) are diagrams showing an overview of the operation of the shutter system shown in FIGS. 1(a) and 1(b). FIGS. 5(a)-(d) are diagrams showing an outline of the operation of the shutter system shown in FIGS. 1(a)-(b). 4 is a diagram illustrating an overview of two-axis conversion performed in the current value detection section of FIG. 3. FIG. 4 is a diagram showing the relationship between the rotation angle and the current value in the current control section of FIG. 3. FIG. 8(a)-(b) are partially enlarged views of FIG. 7. FIG.

Before specifically explaining the embodiments of the present disclosure, an outline of the embodiments will be explained. The embodiment relates to a shutter system installed at an opening of a facility such as a residence. The shutter system is a motorized shutter, and the motorized shutter automates the shutter operation. In an electric shutter, a shutter curtain made up of a combination of a plurality of slats is opened and closed by rotation of a winding shaft. When installing such an electric shutter, it is necessary to set a movable range of the shutter curtain. The movable range is the rotation angle (hereinafter referred to as the ``complete opening angle'') at which the shutter curtain opens all the openings (hereinafter referred to as the ``completely open state''), and the rotation angle at which the shutter curtain closes the openings. It is indicated by the rotation angle that results in the state.

On the other hand, in order to add a ventilation function or a lighting function to the electric shutter, a slit is provided in the electric shutter. The ventilation/lighting function is a function to bring in wind and light. For example, the slats of the electric shutter are configured to be slidable, and a slit is formed between the two adjacent slats by increasing the distance between the two adjacent slats. In such an electric shutter, when the shutter curtain rotates in the closing direction and the lower end of the shutter curtain reaches the lower surface of the opening, all the slits are open (hereinafter referred to as "ventilation state"). Further, in the electric shutter, all slits are closed by rotating the shutter curtain in the same direction from the air intake state (hereinafter referred to as "completely closed state"). For such electric shutters, in addition to the fully open angle, the rotation angle at which the air is allowed to enter the ventilation state (hereinafter referred to as the "ventilation angle") and the rotation angle at which the shutter is completely closed (hereinafter referred to as the "complete closing angle") are set. There is a need to.

The fully open angle and fully closed angle are set manually during construction. Further, the air intake angle is manually set by the user while visually observing the setting. Since it is done manually, the set rotation angle, that is, the position of the shutter curtain, varies depending on the person. In order to improve workability and convenience, it is preferable that these settings be automated. However, since the load characteristics differ depending on the size and height of the shutter, it is difficult to detect the rotation angle based on the load. Therefore, in this embodiment, the complete opening angle, complete closing angle, and ventilation angle are automatically set by detecting the characteristic amount of each state based on the torque current (motor current) of vector control.

Below, (1) basic structure, (2) structure with slits, and (3) setting of rotation angle will be explained in this order.
(1) Basic Structure The basic structure corresponds to the structure of the shutter system 1000 according to the present embodiment in which the structure related to the slit is omitted. 1(a)-(b) show the structure of a shutter system 1000. 1(a)-(b) show the structure of a shutter system 1000. FIG. 1(a) shows the configuration when the facility is viewed from outside, and FIG. 1(b) shows the configuration when the facility is viewed from indoors. The shutter system 1000 includes a guide rail 20, a shutter curtain 30, a shutter case 40, a communication line 200, and a controller 300, and the shutter curtain 30 includes a slat 32 and a seat plate 33. Here, the guide rail 20, shutter curtain 30, and shutter case 40 are included in the shutter.

As shown in FIG. 1(a), a shutter, which is an opening/closing body, is installed in an opening 10 formed in an outer wall that partitions inside and outside of a facility such as a house or a building. The opening 10 is a space that communicates between the inside and outside of the facility. The two guide rails 20 have a shape that extends in the vertical direction, and are fixed to a frame member such as a sash installed in the opening 10 and an outer wall at a distance from each other on both sides of the opening 10 in the left-right direction. Each guide rail 20 is a hollow member having an internal structure with a substantially U-shaped cross section, and the two guide rails 20 are fixed such that the U-shaped openings face each other.

The shutter curtain 30 moves up and down along the longitudinal direction of the guide rail 20 to open and close the opening 10. Specifically, both ends of the shutter curtain 30 in the left and right direction are inserted into the guide rail 20, so that both ends of the shutter curtain 30 in the left and right direction are movable in the vertical direction by the guide rail 20. The shutter curtain 30 is configured by a combination of a plurality of slats 32 and a seat plate 33. Each slat 32 is a plate-shaped member extending along the left-right direction of the opening 10, and is made of, for example, steel, stainless steel, aluminum, or the like. A curled portion (not shown) is provided at the upper end and lower end of each slat 32. Of the two adjacent slats 32, the curled portion at the lower end of the upper slat 32 and the curled portion at the lower end of the lower slat 32 are provided. The curled portion at the upper end is rotatably connected. The seat plate 33 is rotatably connected to the lower side of the lowermost slat 32. Further details of the structure of the shutter curtain 30 in which the plurality of slats 32 and the seat plate 33 are combined will be described later.

The shutter case 40 is a housing body provided above the opening 10 and the guide rail 20 and having a substantially rectangular vertical section. The shutter case 40 has a storage space inside, and the storage space is connected to the outside through a through hole provided on the lower surface of the shutter case 40. A winding mechanism for winding up or letting out the shutter curtain 30 through the through hole is provided in the storage space. Here, "winding up" means that the shutter curtain 30 rises along the guide rail 20 and the opening 10 is opened, and "feeding out" means that the shutter curtain 30 moves up along the guide rail 20. and the opening 10 is closed.

As shown in FIG. 1(b), a sash 12 is attached to surround the opening 10. The communication line 200 connected to the shutter case 40 in FIG. 1(a) is buried inside the sash 12 and extends indoors. A controller 300 is installed on an indoor wall, and a communication line 200 is connected to the controller 300. In this way, the communication line 200 connects the electrification unit 100 installed outdoors and the controller 300 installed indoors.

FIG. 2 shows the internal structure of shutter system 1000. The shutter system 1000 includes a shutter curtain 30, a shutter case 40, and a winding shaft 60. The shutter curtain 30 includes a slat 32, a seat plate 33, and a screw 34, and the shutter case 40 includes a first bracket 42a, which is collectively referred to as a bracket 42, a second bracket 42b, and a first support shaft 44a, which is collectively referred to as a support shaft 44. , a second support shaft 44b. The take-up shaft 60 includes a first rotating frame 62a, a second rotating frame 62b, collectively referred to as the rotating frame 62, a driven wheel 64, a take-up spring 66, a fixed part 72, and an electric motorized unit 80. , a main body 82 , and a drive wheel 84 , and the main body 82 includes a motor 86 , a control section 88 , a speed reducer 90 , and a communication line 200 . The electrification unit 80 is also called an electric opening/closing body control device.

Here, the shutter case 40 is shown transparent in order to show the internal structure of the shutter case 40. A winding shaft 60, which is a cylindrical support extending in the left-right direction, is arranged in the shutter case 40. A plurality of fixing parts 72 are provided on the winding shaft 60, and the shutter curtain 30 is fixed to the plurality of fixing parts 72 using a plurality of screws 34. Therefore, it can be said that the winding shaft 60 is a shaft on which the shutter curtain 30 can be wound.

A first bracket 42a and a second bracket 42b, collectively referred to as brackets 42, are provided at the left end and right end of the storage space of the shutter case 40 so as to sandwich the winding shaft 60 from left and right sides. Specifically, the first bracket 42a is arranged on the left side of the winding shaft 60, and the second bracket 42b is arranged on the right side of the winding shaft 60. The first bracket 42a is a support part that rotatably supports the left end of the winding shaft 60, and the second bracket 42b is a support part that rotatably supports the right end of the winding shaft 60. When the left end of the winding shaft 60 is referred to as the "first end", the right end of the winding shaft 60 is referred to as the "second end".

A first support shaft 44a that protrudes toward the right side is provided on the right side surface of the first bracket 42a. The first support shaft 44a has a cylindrical shape, and the first rotating frame 62a is fitted on the side surface of the first support shaft 44a. The first rotating frame 62a is disposed at the left end of the winding shaft 60 and has a shape that surrounds the side surface of the first support shaft 44a. With such a structure, the first rotation frame 62a rotates around the first support shaft 44a fixed to the first bracket 42a. A second support shaft 44b that protrudes toward the left side is provided on the left side surface of the second bracket 42b. The second support shaft 44b has a cylindrical shape, and a second rotating frame 62b is fitted to a side surface of the second support shaft 44b. The second rotating frame 62b is disposed at the right end of the winding shaft 60 and has a shape that surrounds the side surface of the second support shaft 44b. With such a structure, the second rotation frame 62b rotates around the second support shaft 44b fixed to the second bracket 42b. Furthermore, the winding shaft 60 also rotates due to the rotation of the first rotating frame 62a and the second rotating frame 62b.

A holding section (not shown) is arranged in the right region inside the winding shaft 60, and the motorization unit 80 is attached to the holding section. The electrification unit 80 is an electric device that outputs rotational power to the winding shaft 60. The electrification unit 80 includes a main body 82 having a cylindrical shape and a drive wheel 84 arranged on the left side of the main body 82. It can be said that such a drive wheel 84 faces toward the center of the winding shaft 60 in the motorized unit 80. A motor 86, a control unit 88, and a reducer 90 are mounted inside the main body 82, and the rotation of the motor 86 causes the reducer 90 and drive wheels 84 to also rotate. The control unit 88 controls the rotation of the motor 86. In particular, the control unit 88 controls the value of the current for rotating the motor 86 of the electrification unit 80.

Inside the winding shaft 60 , a driven wheel 64 is provided in a region on the left side of the holding portion, that is, in a region on the center side of the winding shaft 60 with respect to the motorized unit 80 . The driven wheel 64 is arranged on the left side of the driving wheel 84, and rotates by the rotation of the driving wheel 84 when combined with the driving wheel 84. Further, the rotation of the driven wheel 64 also rotates the winding shaft 60. As a result, it can be said that the winding shaft 60 is rotated by the rotational power from the motorized unit 80. On the other hand, when the driving wheel 84 and the driven wheel 64 are not combined, the winding shaft 60 is rotated not by the rotational power from the electrification unit 80 but by manual rotational power. A description of the manual rotation of the winding shaft 60 will be omitted.

Here, the holding portion holds a portion of the side surface of the main body 82, for example, a portion of the side surface of the main body 82, including the lower side. Further, the right end portion of the holding portion is connected to the second support shaft 44b. Since the holding part is fixed to the second bracket 42b by this connection, even if the winding shaft 60 rotates, the main body 82 held by the holding part does not rotate.

More specifically, in the main body 82 of the electrification unit 80, a motor 86 rotates under the control of a control section 88. The speed reducer 90 amplifies the torque of the rotational power of the motor 86. Although a known technique may be used for the reducer 90, for example, the reducer 90 has a structure in which a plurality of planetary gears rotate and revolve around a sun gear. When the drive wheel 84 rotates due to the rotation of the speed reducer 90, the driven wheel 64 combined with the drive wheel 84 also rotates, and the winding shaft 60 rotates.

When the winding shaft 60 rotates in the winding direction from the state where the shutter curtain 30 closes the opening 10 as shown in FIG. The opening 10 is opened while being removed. As this rotation continues, the shutter curtain 30 is wound up while being stacked on the shutter curtain 30 that was wound up during the first rotation, and the entire area of the opening 10 is opened. Further, when the winding shaft 60 rotates in the unwinding direction from the state where the shutter curtain 30 opens the opening 10, the shutter curtains 30 stacked on the outer circumferential surface of the winding shaft 60 are successively unrolled. As this rotation continues, the shutter curtain 30 closes the entire area of the opening 10.

FIG. 3 is a block diagram showing the configuration of the shutter system 1000. Shutter system 1000 includes an electrification unit 80, a communication line 200, and a controller 300. The electrification unit 80 includes a motor 86 and a control section 88, and the control section 88 includes a first connection section 410, a first wire communication section 412, a position control section 414, a position detection section 416, a speed control section 418, and a differentiation section. 420, a current control section 422, a current value detection section 424, and a setting section 426. The controller 300 includes an operation section 310, an operation control section 312, a second wire communication section 314, and a second connection section 316.

The operation unit 310 of the controller 300 is a user interface having a plurality of buttons, and accepts user operations. An open button, a stop button, and a close button are provided on the surface of the controller 300. The open button, stop button, and close button are configured with, for example, a flat switch. The open button is a button that receives an instruction to move the shutter curtain 30 so as to open the opening 10 (hereinafter referred to as "opening instruction"). The stop button is a button that receives an instruction to stop the moving shutter curtain 30 (hereinafter referred to as a "stop instruction"). The close button is a button that receives an instruction to move the shutter curtain 30 so as to close the opening 10 (hereinafter referred to as a "closing instruction"). When one of the open button, stop button, and close button is pressed down, an operation signal corresponding to one of the open instruction, stop instruction, and close instruction is output from the operation section 310 to the operation control section 312.

The operation control section 312 receives an operation signal from the operation section 310. The operation control unit 312 generates an instruction signal that includes one of an open instruction, a stop instruction, and a close instruction indicated in the operation signal. The second wire communication section 314 receives an instruction signal from the operation control section 312 and transmits the instruction signal to the electrification unit 80 via the second connection section 316 and the communication line 200.

The second connection unit 316 is an interface for connecting the communication line 200 to the controller 300. Further, the first connection section 410 of the electrification unit 80 is also an interface for connecting the communication line 200. The communication line 200 is connected to the second connection part 316 and the communication line 200 is connected to the first connection part 410, so that the communication line 200 connects the controller 300 and the electrification unit 80. Through such a connection, the communication line 200 transmits an instruction signal from the controller 300 to the electrification unit 80. Since controller 300 is installed indoors and electrification unit 80 is installed outdoors, the instruction signal is transmitted from indoors to outdoors.

The first wired communication unit 412 receives an instruction signal from the second wired communication unit 314 via the second connection unit 316, the communication line 200, and the first connection unit 410. The first wired communication unit 412 outputs one of an open instruction, a stop instruction, and a close instruction included in the instruction signal to the position control unit 414. The position control unit 414 receives one of an open instruction, a stop instruction, and a close instruction from the first wired communication unit 412.

The position control unit 414 updates the target value of the position (lower end position) of the shutter curtain 30 in accordance with one of the received opening instruction, stop instruction, and closing instruction. For example, when receiving an opening instruction, the position control unit 414 updates the previous target value to be higher. Further, the position control unit 414 receives a feedback value of the position of the shutter curtain 30 from the position detection unit 416. A method for detecting the position feedback value in the position detecting section 416 will be described later. Here, the position of the shutter curtain 30 may be expressed as the angle of rotation of the motor 86, but below, the position and angle will be used without distinction. The position control unit 414 operates at a non-zero constant speed until at least one of the target value and the feedback value reaches the upper limit position (fully open angle) or lower limit position (fully closed angle) or until a stop instruction is given. Outputs the target value of the speed.

The differentiator 420 receives the feedback value of the position of the shutter curtain 30 from the position detector 416, and derives the feedback value of the velocity by differentiating the feedback value of the position. Differentiator 420 outputs the feedback value of speed to speed controller 418 . The speed control section 418 receives a speed target value from the position control section 414 and receives a speed feedback value from the differentiating section 420. The speed control unit 418 derives a speed deviation by subtracting the speed feedback value from the speed target value, and then performs speed loop processing such as proportional/integral control to derive the torque (current) target value.

The current control unit 422 receives the target value of torque (current) from the speed control unit 418. Further, the magnitude of the current output from the current control section 422 to the motor 86, that is, the value of the total current supplied to the motor 86 of the electrification unit 80, is detected by the current value detection section 424, and the current control section 422 Receives the feedback value of the detected current. The current value detection section 424 is composed of, for example, a shunt resistor. The current control unit 422 determines the magnitude of the current to be output to the motor 86 so that the feedback value of the current approaches the target value of torque (current). This corresponds to controlling the current for rotating the motor 86, and a known technique may be used for this determination. That is, the speed control section 418 and the current control section 422 determine the value of the current for rotating the motor 86 according to the change in position detected by the position detection section 416, that is, the speed.

The motor 86 rotates at a speed corresponding to the value of the current output from the current control section 422. The motor 86 outputs rotational power to the winding shaft 60. When the motor 86 is a three-phase brushless motor, three-phase direct current is output from the current control section 422.

With such a configuration, the control unit 88 rotates the motor 86 so that the winding shaft 60 rotates in the winding direction when the control signal corresponds to an opening instruction, and when the control signal corresponds to a closing instruction. , the motor 86 is rotated so that the take-up shaft 60 rotates in the unwinding direction. The rotational direction of the motor 86 in the winding direction and the rotational direction of the motor 86 in the feeding direction are opposite directions. On the other hand, the control unit 88 stops the rotation of the motor 86 when the control signal corresponds to a stop instruction. The motor 86 rotates in accordance with the control unit 88 and supplies power to the shutter curtain 30 that opens and closes the opening 10, the winding shaft 60, and the like.

When the shutter curtain 30 is opened or closed according to the rotational direction of the motor 86, the position of the shutter curtain 30 is detected by the position detection section 416. The position detected by the position detection unit 416 can also be said to be the rotational position of the motor 86. The position detection unit 416 is, for example, a counter-type limit switch that is provided on the side of the motor 86 and mechanically counts the number of revolutions of the motor 86 to detect the open/close position or the upper and lower limit positions. Further, the position detection unit 416 may be configured to detect the open/close position or the upper and lower limit positions of the shutter curtain 30 by counting pulses using an encoder provided on the motor 86. Further, the position detection unit 416 may be configured to include a current detection circuit for the motor 86 and detect the opening/closing position or the upper and lower limit positions from changes in the current value corresponding to changes in the load applied to the motor 86. Furthermore, the position detection section 416 may be a mechanical or electrical limit switch that is provided above and below the guide rail 20 and directly detects the open/close position or the upper and lower limit positions of the shutter curtain 30. The position detected by the position detection section 416 is output to the position control section 414 and the differentiation section 420. The setting unit 426 will be described later.

(2) Structure with slits The structure of the slits added to the shutter system 1000 described above will be described below. 4(a)-(b) show an overview of the operation of the shutter system 1000. FIG. 4(a) shows the structure of the winding shaft 60 and shutter curtain 30 of FIG. 2 viewed from the side. At the rotation angle of the winding shaft 60 shown in FIG. Not yet.

A first slat 32a is arranged above the seat plate 33, and a second slat 32b is arranged above the first slat 32a. A slide member 36 is arranged between the seat plate 33 and the first slat 32a. Slide members 36 are also arranged between two adjacent slats 32, respectively. The slide member 36 is a member that slides the slat 32 in the vertical direction, and the slit 38 opens and closes between the seat plate 33 and the first slat 32a. Further, the slit 38 also opens and closes between two adjacent slide members 36. In a state where the lower end portion has not reached the lower surface 14 as shown in FIG. 4(a), the seat plate 33 moves downward due to the gravity applied to the seat plate 33. Further, the lower slat 32 of the two adjacent slides also moves downward. As a result, the slit 38 between the seat plate 33 and the first slat 32a is opened. Also, slits 38 between all exposed slats 32 are opened.

At the rotation angle of the winding shaft 60 shown in FIG. 4(b), the plurality of slats 32 hang downward from the winding shaft 60, and the lower end of the seat plate 33 reaches the lower surface 14. The rotation of the motor 86 moves the first slat 32a downward. As a result, the slit 38 between the seat plate 33 and the first slat 32a is closed. On the other hand, since the second slat 32b has not moved downward, the slit 38 between the first slat 32a and the second slat 32b is opened. Furthermore, when the shutter curtain 30 is wound up on the winding shaft 60, the slide member 36 bends along with the slat 32 along the winding shaft 60.

FIGS. 5(a) to 5(d) show an overview of the operation of the shutter system 1000. Similar to FIG. 4(a), FIG. 5(a) shows the structure of the shutter system 1000 in a state where the seat plate 33 has not reached the lower surface 14. The plurality of slats 32 in the shutter curtain 30 are shown as a first slat 32a, a second slat 32b, a third slat 32c, etc. in order from the bottom. Also here, the slit 38 between the seat plate 33 and the first slat 32a is opened, and all the slits 38 between the adjacent slats 32 are also opened.

FIG. 5(b) shows the structure of the shutter system 1000 in a state where the seat plate 33 has reached the lower surface 14 by extending the shutter curtain 30 further than in FIG. 5(a). Also here, the slit 38 between the seat plate 33 and the first slat 32a is opened, and all the slits 38 between the adjacent slats 32 are also opened.

FIG. 5(c) shows the structure of the shutter system 1000 in a state in which the shutter curtain 30 is further extended from FIG. 5(b). As the shutter curtain 30 is extended, it slides downward in order from the lower slat 32. For example, when the first slat 32a moves downward, the seat plate 33 and the first slat 32a come into contact, and when the second slat 32b moves downward, the first slat 32a and the second slat 32a come into contact with each other. It makes contact with the slat 32b. Further, the third slat 32c and the fourth slat 32d similarly move downward, so that the second slat 32b and the third slat 32c come into contact with each other, and the third slat 32c and the fourth slat 32d come into contact with each other. do.

As a result, the slit 38 between the seat plate 33 and the first slat 32a is closed, and the slit 38 between the first slat 32a and the fourth slat 32d is closed. On the other hand, since the fifth slat 32e does not move downward, the fourth slat 32d and the fifth slat 32e are spaced apart. Therefore, the slit 38 between the fourth slat 32d and the fifth slat 32e is opened.

FIG. 5(d) shows the structure of the shutter system 1000 in a state in which the shutter curtain 30 is further extended from FIG. 5(c). Since all the slats 32 move downward, all adjacent slats 32 come into contact. As a result, the slits 38 between all the slats 32 are closed. Up to now, the operation when the shutter curtain 30 is unrolled has been described, but when the shutter curtain 30 is wound up, the shutter system 1000 is operated as shown in FIGS. 5(d), 5(c), and 5(b). , may be changed in the order shown in FIG. 5(a).

Such opening/closing operations of the shutter curtain 30 are performed by rotating the motor 86 of the motorized unit 80 by operating the controller 300. At this time, the position detection section 416 detects the position of the shutter curtain 30, that is, the angle of rotation of the motor 86 (hereinafter referred to as "rotation angle"), and the current value detection section 424 detects the current for rotating the motor 86. Detect values. The rotation angle is indicated by, for example, a counter value, and the current value is, for example, a torque component of three-phase current.

To explain the process in the current value detection section 424 in more detail, the current value detection section 424 detects the torque component of the current value flowing through the motor 86. When the motor 86 is a three-phase brushless motor, three-phase DC currents output to the three-phase brushless motor are indicated as a u-phase, a v-phase, and a w-phase. Further, the three-phase brushless motor rotates because the angle of the composite vector of the current vectors of each phase changes periodically. The current value detection unit 424 receives the u-phase, v-phase, and w-phase current vectors, and performs biaxial conversion of these to the q-axis and d-axis. Since such a conversion can be performed by performing a known matrix operation, the description thereof will be omitted here.

FIG. 6 shows an overview of the two-axis conversion performed in the current value detection section 424. Mutually orthogonal u-phase, v-phase, and w-phase are shown, and mutually orthogonal d-axis and q-axis are shown. Here, the d-axis shows the excitation component and the q-axis shows the torque component. The resultant vector is converted into a combination of an excitation vector in the d-axis direction and a torque vector in the q-axis direction by biaxial conversion. This corresponds to converting three-phase currents in a three-phase brushless motor into a combination of an excitation component and a torque component. Of the excitation component and the torque component, the torque component has a characteristic that it is proportional to the load due to external force. In other words, the torque component reflects changes in the torque of the total load. Return to Figure 3. The position detection section 416 outputs the rotation angle to the current control section 422, and the current value detection section 424 outputs information on the current value to the current control section 422.

FIG. 7 shows the relationship between the rotation angle and the current value in the current control section 422. As described above, the rotation angle is received from the position detection section 416, and the current value is received from the current value detection section 424. The horizontal axis shows the rotation angle, and the vertical axis shows the current value (torque current, motor current). As the horizontal axis moves to the right, the rotation angle increases, and as the rotation angle increases, the shutter curtain 30 descends. The rotation angle "A1" corresponds to the "fully open angle", and the state of the shutter system 1000 at that time is the fully open state. The fully open state is a state in which the shutter curtain 30 opens all the openings 10.

Further, the rotation angle "A2" corresponds to the "air intake angle", and the state of the shutter system 1000 at that time is the air intake state. In the ventilation state, the shutter curtain 30 closes the opening 10, but all the slits 38 are open. Furthermore, the rotation angle "A3" corresponds to the "completely closed angle", and the state of the shutter system 1000 at that time is the fully closed state. The completely closed state is a state in which the shutter curtain 30 closes the opening 10 and all slits 38 are closed.

When the rotation angle is between "A1" and "A2", the weight of the slat 32 and the load of the winding spring 66 are balanced, so the current value fluctuates within a certain range. This is a state in which the shutter curtain 30 partially closes the opening 10 and all the slits 38 are open. When the rotation angle moves from "A2" to "A3", the slit 38 begins to close, so the weight of the slat 32 decreases. On the other hand, as the motor 86 rotates, the load on the take-up spring 66 increases. As a result, the load balance is biased towards the load of the take-up spring 66, so the current value increases in proportion to the increase in rotation angle.

When the shutter curtain 30 is lowered, the rotation angle is between "A1" and "A2", that is, the period during which the shutter curtain 30 transitions from the completely open state to the ventilation state is called a "lowering period". The lowering period is a period until the lower end of the shutter curtain 30 cannot be lowered when the shutter curtain 30 is lowered by the motor 86, and can be said to be a period during which each slit 38 is open. Further, the period when the rotation angle of the shutter curtain 30 is lowered from "A2" to "A3", that is, the period during which the shutter curtain 30 transitions from the ventilation state to the completely closed state is called a "closed period". The closing period can be said to be a period in which the lower end of the shutter curtain 30 becomes unable to descend and then closes sequentially starting from the lower slit 38. Further, the period between the rotation angle "A3" and "A1" when the shutter curtain 30 rises, that is, the period during which the shutter curtain 30 transitions from the completely closed state to the completely open state via the ventilation state is called a "rising period."

(3) Setting the rotation angle When installing such a shutter system 1000 in the opening 10 of FIG. 1, it is necessary to set the complete opening angle, air intake angle, and complete closing angle of the shutter curtain 30 in advance. After the complete opening angle, air intake angle, and complete closing angle are set, the shutter curtain 30 is wound up or let out between the complete opening angle and the complete closing angle by operating the controller 300. Further, the slit 38 of the shutter curtain 30 closes and opens between the intake angle and the complete closing angle. Below, the settings of the complete opening angle, air intake angle, and complete closing angle will be explained.

8(a)-(b) are partially enlarged views of FIG. 7. FIG. FIG. 8(a) shows the vicinity of the rotation angle "A1" in FIG. When the rotation angle decreases from a value larger than "A1" toward "A1", that is, when the controller 300 is wound up, the current value fluctuates within a certain range. When the rotation angle becomes smaller than "A1", the current value increases as the rotation angle decreases. This corresponds to an increase in the slope of the current value as the current value changes. The reason for the increase in the slope of the current value is that the reaction force from the shutter case 40 increases when the winding of the shutter curtain 30 is completed.

FIG. 8(b) shows the vicinity of rotation angles "A2" and "A3" in FIG. When the rotation angle increases from a value smaller than "A2" toward "A2", that is, when the controller 300 is extended, the current value fluctuates within a certain range. When the rotation angle becomes larger than "A2", the current value increases while the rotation angle increases to "A2'". This is because when the seat plate 33 reaches the lower surface 14, the weight of the seat plate 33 decreases and the load on the winding spring 66 increases. Further, when the rotation angle becomes larger than "A2'", the current value gradually increases while the rotation angle increases to "A3". This is because as the slits 38 are closed one by one, the weight of the slat 32 decreases step by step, and the load on the take-up spring 66 increases step by step.

When the rotation angle becomes larger than "A3", the current value increases as the rotation angle increases. This also corresponds to an increase in the slope of the current value as the current value changes. The reason for the increase in the slope of the current value is that the reaction force from the lower surface 14 increases when the shutter curtain 30 is completely extended and the slit 38 is closed.

In this embodiment, the complete opening angle and complete closing angle are set by using the change in the slope of the current value, and the ventilation angle is set by using the change in the current value. As the motor 86 rotates, the shutter curtain 30 is paid out or wound up. In such a situation, the position detection unit 416 in FIG. 3 sequentially detects the position (rotation angle) and outputs it to the setting unit 426, and the current value detection unit 424 sequentially detects the current value and outputs it to the setting unit 426 as well. Output. The setting unit 426 sequentially receives positions (rotation angles) from the position detection unit 416 and current values from the current value detection unit 424.

The setting unit 426 monitors changes in the rotation angle sequentially received from the position detection unit 416, and recognizes that the shutter curtain 30 is being wound around the winding shaft 60 when the rotation angle is decreasing. When winding up the shutter curtain 30 around the winding shaft 60, the setting unit 426 derives the change in current value per unit change in rotation angle as the slope of the current value. The unit change amount may be set, for example, to the detection interval between the position control section 414 and the current value detection section 424, or may be set to an integral multiple of the detection interval. Specifically, the setting unit 426 sets a current value obtained at a predetermined timing (hereinafter referred to as a "first current value") and a current value obtained a unit change amount after the predetermined timing (hereinafter referred to as a "first current value"). 2 current value). The setting unit 426 derives the slope of the current value, which is a change in the current value, by subtracting the first current value from the second current value. Such processing is repeatedly executed when a new current value is received, the current value is set as the second current value, and the original second current value is set as the first current value.

As a result, the setting unit 426 sequentially derives the slope of the current value. The setting unit 426 sets one of the two consecutive current value slopes as a "first slope" and sets the slope following the first slope as a "second slope." The setting unit 426 derives a change in the slope of the current value by subtracting the first slope from the second slope. Such processing is repeatedly executed while changing the slope of two consecutive current values. The setting unit 426 sequentially compares the change in the slope of the current value with the first threshold value when the rotation angle decreases. When the change in the slope of the current value becomes larger than the first threshold value, the setting unit 426 determines that the shutter curtain 30 is in the fully open state. Further, the setting unit 426 specifies the rotation angle when determining that the shutter curtain 30 is in the fully open state as the fully open angle. The first threshold value is derived in advance by experiment or simulation calculation.

The setting unit 426 monitors changes in the rotation angle sequentially received from the position detection unit 416, and recognizes that the shutter curtain 30 is being unrolled from the take-up shaft 60 when the rotation angle is increasing. The setting unit 426 derives the change in current value per unit change in rotation angle as the slope of the current value when the shutter curtain 30 is unrolled from the take-up shaft 60. Since the derivation of the slope of the current value is the same as before, the explanation will be omitted here. The setting unit 426 sequentially compares the slope of the current value and the second threshold value when the rotation angle increases. When the slope of the current value becomes larger than the second threshold value, the setting unit 426 determines that the shutter curtain 30 is in the ventilation state. Further, the setting unit 426 specifies the rotation angle when it is determined that the shutter curtain 30 is in the ventilation state as the ventilation angle. The second threshold value is also derived in advance by experiment or simulation calculation.

The setting unit 426 derives the change in the slope of the current value as before. The setting unit 426 sequentially compares the change in the slope of the current value with the third threshold value when the rotation angle increases. When the change in the slope of the current value becomes larger than the third threshold, the setting unit 426 determines that the shutter curtain 30 is in a completely closed state. Further, the setting unit 426 specifies the rotation angle when determining that the shutter curtain 30 is in the completely closed state as the complete closing angle. The third threshold value is also derived in advance through experiment or simulation calculation. The third threshold value may be the same value as the first threshold value. The setting unit 426 sets a complete opening angle, an air intake angle, and a complete closing angle.

After the settings are made by the setting unit 426, the position control unit 414 stops the winding operation when the target value of the position (rotation angle) reaches the full opening angle in the operation of winding up the shutter curtain 30 on the winding shaft 60. let On the other hand, when the target value of the position (rotation angle) reaches the ventilation angle or the complete closing angle during the operation of unwinding the shutter curtain 30 from the take-up shaft 60, the position control unit 414 stops the unwinding operation.

The main body of the device, system, or method in the present disclosure includes a computer. When this computer executes the program, the main functions of the device, system, or method of the present disclosure are realized. A computer includes, as its main hardware configuration, a processor that operates according to a program. The type of processor does not matter as long as it can implement a function by executing a program. A processor is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large scale integration (LSI). A plurality of electronic circuits may be integrated on one chip or may be provided on a plurality of chips. A plurality of chips may be integrated into one device, or may be provided in a plurality of devices. The program is recorded on a computer-readable non-transitory storage medium such as a ROM, optical disk, or hard disk drive. The program may be stored in the recording medium in advance, or may be supplied to the recording medium via a wide area communication network including the Internet.

According to this embodiment, since the rotation angle of the shutter curtain 30 in a specific state is set based on the change in the current value per unit change in position during rotation, no change in the current value due to reaction force occurs. You can also set the rotation angle in any case. Further, since the rotation angle is set even when the current value does not change due to reaction force, the position at which the shutter curtain should be stopped can be easily set. Furthermore, since the rotation angle in the ventilation state is set based on the change in current value per unit change in position during rotation, the rotation angle can be set even when there is no change in current value due to reaction force. In addition, since the rotation angle for the state in which the shutter curtain 30 is open or the opening portion of the shutter curtain 30 is closed is set based on the change in the slope of the current value, the position at which the shutter curtain should be stopped can be easily determined. Can be set.

An overview of one aspect of the present disclosure is as follows. An electric opening/closing body control device (80) according to an aspect of the present disclosure includes an electric part (86) that outputs rotational power to a winding shaft (60) capable of winding up a shutter curtain (30), and an electric part (86). A control section (422) that controls the current value for rotating the shutter curtain (422), a current value detection section (424) that detects the current value output to the motorized section (86), and a 30), based on the change in current value detected by the current value detection unit (424) and the change in current value per unit change in position during rotation of the motorized unit (86), A setting section (426) for setting a rotation angle of a specific state of the shutter curtain (30) is provided.

In the shutter curtain (30), a plurality of slats are combined, and the plurality of slats in the shutter curtain (30) are slidable so that a slit formed between two adjacent slats can be opened and closed. When the shutter curtain (30) is extended from (60), each slit is open during the descending period until the lower end of the shutter curtain (30) becomes unable to descend, and the lower end of the shutter curtain (30) becomes unable to descend. During the closing period from the current ventilation state, the slits are closed sequentially from the lower side, and the specific state set in the setting section (426) may be the ventilation state.

The setting section (426) sets the current value detection section (424) when winding up the shutter curtain (30) on the winding shaft (60) or when unwinding the shutter curtain (30) from the winding shaft (60). The detected change in current value, and the change in current value per unit change in rotation angle during rotation of the motorized part (86), is obtained as the slope of the current value, and based on the change in the slope of the current value, , the rotation angle may be set when the shutter curtain (30) is open or when the shutter curtain (30) closes the opening.

The specific state set in the setting section (426) may be a state in which the shutter curtain (30) closes the opening.

The setting section (426) detects a change in the current value detected by the current value detection section (424) when winding the shutter curtain (30) around the winding shaft (60), and changes the current value of the motorized section (86). The rotation angle at which the shutter curtain (30) opens its opening may be set based on the change in current value per unit change in position during rotation.

It may include an electric opening/closing body control device (80) and an electric opening/closing body connected to the electric opening/closing body control device (80).

The present disclosure has been described above based on examples. It will be understood by those skilled in the art that this example is merely an example, and that various modifications can be made to the combinations of these components or processing processes, and that such modifications are also within the scope of the present disclosure. .

The shutter curtain 30 in this embodiment has a slit 38 due to the slide member 36. However, the present invention is not limited to this, and for example, the shutter curtain 30 may not have the slits 38. According to this modification, the scope of application of the present disclosure can be expanded.

The setting unit 426 in this embodiment determines the completely open state and the completely closed state based on the change in the slope of the current value. However, the present invention is not limited to this, and for example, the setting unit 426 may determine whether the fully open state or the fully closed state is based on the slope of the current value. According to this modification, processing can be simplified.

In this embodiment, the electrification unit 80 and the controller 300 are connected by a communication line 200, and the electrification unit 80 and the controller 300 perform wired communication. Therefore, controller 300 transmits an instruction signal to electrification unit 80 via wired communication. However, the present invention is not limited to this, and for example, the electrification unit 80 and the controller 300 may perform wireless communication. At this time, the first wired communication section 412 included in the electrification unit 80 becomes a first wireless communication section, and the first connection section 410 becomes a first antenna. Further, the second wired communication section 314 included in the controller 300 becomes a first wireless communication section, and the second connection section 316 becomes a second antenna. Any known technology may be used to process the wireless communication by the first wireless communication unit and the second wireless communication unit. With such a configuration, controller 300 transmits an instruction signal to electrification unit 80 by wireless communication. Furthermore, the controller 300 may be realized by a communication device such as a smartphone. In this case, the operation unit 310 is an interface provided in the communication device, and the operation control unit 312 is an application program installed in the communication device. With such a configuration, the communication device transmits the instruction signal to the electrification unit 80 by wireless communication. According to this modification, the degree of freedom in configuration can be improved.

10 opening, 12 sash, 14 lower surface, 20 guide rail, 30 shutter curtain, 32 slat, 33 seat plate, 34 screw, 36 slide member, 38 slit, 40 shutter case, 42 bracket, 44 support shaft, 60 winding shaft , 62 rotating frame, 64 driven wheel, 66 winding spring, 72 fixed part, 80 electrification unit (electric opening/closing body control device), 82 main body, 84 driving wheel, 86 motor (electric part), 88 control part, 90 deceleration machine, 200 communication line, 300 controller, 310 operation section, 312 operation control section, 314 second wired communication section, 316 second connection section, 410 first connection section, 412 first wired communication section, 414 position control section, 416 position detection section, 418 speed control section, 420 differentiation section, 422 current control section (control section), 424 current value detection section, 426 setting section, 1000 shutter system.

Claims (7)

an electric part that outputs rotational power to a winding shaft that can wind up the shutter curtain;
a control unit that controls a current value for rotating the motorized unit;
a current value detection section that detects the current value output to the motorized section;
When the shutter curtain is unrolled from the winding shaft, the change in the current value detected by the current value detection section, and the change in the current value per unit change in position during rotation of the motorized section. a setting unit for setting a rotation angle of the shutter curtain in a specific state;
An electric opening/closing body control device. In the shutter curtain, a plurality of slats are combined,
The plurality of slats in the shutter curtain are slidable so that a slit formed between two adjacent slats can be opened and closed,
When the shutter curtain is unrolled from the take-up shaft, each slit is open during the descending period until the lower end of the shutter curtain becomes unable to descend, and the slits remain open during the descending period until the lower end of the shutter curtain becomes unable to descend. During the closing period, the slits are closed sequentially starting from the bottom slit,
The electric opening/closing body control device according to claim 1, wherein the specific state set in the setting section is the ventilation state. The setting unit detects a change in the current value detected by the current value detection unit when winding the shutter curtain on the winding shaft or unwinding the shutter curtain from the winding shaft, and A change in the current value per unit change in rotation angle during rotation of the motorized part is obtained as the slope of the current value, and based on the change in the slope of the current value, the shutter curtain is in an open state, or The electric opening/closing body control device according to claim 1 or 2, wherein a rotation angle is set when the shutter curtain closes the opening. The electric opening/closing body control device according to claim 1 or 2, wherein the specific state set in the setting section is a state in which the shutter curtain closes the opening. The setting section is configured to set a change in the current value detected by the current value detection section when winding the shutter curtain around the winding shaft, and a change in the current value per unit change in position during rotation of the motorized section. The electric opening/closing body control device according to claim 4, wherein a rotation angle of the shutter curtain with the opening portion open is set based on a change in the current value. The electric opening/closing body control device according to claim 1 or 2,
an electric opening/closing body connected to the electric opening/closing body control device;
Electric opening/closing system. A program to be executed by the electric opening/closing body control device according to claim 1 or 2.

Images