Electric shutter

Abstract

To provide an electric shutter having an easily replaceable communication unit.SOLUTION: An electric shutter 1 includes a shutter case 3, a cylindrical wind-up body 4 disposed in the shutter case 3, a shutter surface member 5 mounted on the wind-up body 4 for winding up and extend the same, an electric motor 6 for rotatably driving the wind-up body 4, a control section 7 for controlling the electric motor 6, and a communication unit 9 for receiving an operation signal from an operation section 8, converting the operation signal into an instruction signal for the control section 7, and transmitting the instruction signal to the control section 7. The electric motor 6 and the control section 7 are disposed inside the wind-up body 4. The communication unit 9 is disposed outside the wind-up body 4 in the shutter case 3.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an electric shutter that opens and closes an opening by operating a remote control or the like. [Background technology]

[0002] Conventionally, a shutter device equipped with an electric shutter drive device has been known as an electric shutter (see Patent Document 1). This shutter device includes a pair of guide rails erected on both sides of an entrance or the like, a shutter case spanning the upper ends of the pair of guide rails, a shutter placed in an opening defined by the pair of guide rails and the shutter case, and the above-mentioned electric shutter drive device. The electric shutter drive device includes a cylindrical winding body that is housed in a shutter case and can wind up the shutter, an electric motor that is connected to the winding body so that it can rotate, a control unit that controls the electric motor, a wireless module (communication unit) that receives operation instruction signals wirelessly transmitted from an operating unit such as a remote control and transmits them to the control unit, and a drive box that houses the electric motor and control unit. In Patent Document 1, there are two types: one in which the drive box is attached to the shutter case outside the winding body, and one in which the drive box is placed in the internal space of the winding body, and in either type, a wireless module is attached to the drive box. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-178564 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, there has been a demand for facilitating development in response to changes in communication specifications from low-power wireless to Bluetooth (registered trademark) and for adapting the processing of installed products to the aforementioned changes in communication specifications. In the shutter device described in Patent Document 1, when a large drive box that houses an electric motor and control unit and is equipped with a wireless module is attached to the shutter case, a large space must be available between the winding body and the shutter case to accommodate the drive box, making it difficult to form a slim shutter case. Furthermore, if the aforementioned drive box is placed in the internal space of the reel, the aforementioned space is not required, but when replacing the wireless module in accordance with various operating parts, it may be necessary to remove the shutter or reel from the shutter device, which may make the work of replacing the wireless module time-consuming.

[0005] An object of the present invention is to provide an electric shutter that allows the communication unit to be easily replaced. [Means for solving the problem]

[0006] The electric shutter of the present invention comprises a shutter case, a cylindrical reel placed within the shutter case, a shutter surface material attached to the reel so that it can be wound and unwound, an electric motor that rotates and drives the reel, a control unit that controls the electric motor, and a communication unit that receives an operation signal from an operating unit, converts it into an instruction signal for the control unit, and transmits it to the control unit, characterized in that the electric motor and the control unit are placed inside the reel, and the communication unit is placed outside the reel within the shutter case. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide an electric shutter in which the communication unit can be easily replaced. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is an external view showing an electric shutter according to an embodiment of the present invention; [Figure 2] FIG. 2 is a perspective view showing a main part of the electric shutter according to the embodiment. [Figure 3] FIG. 2 is an explanatory diagram showing a main part of the electric shutter according to the embodiment. [Figure 4] FIG. 3 is an explanatory diagram showing a communication unit of the electric shutter according to the embodiment. [Figure 5] FIG. 3 is a conceptual diagram showing a control configuration of the electric shutter according to the embodiment. [Figure 6] 5A and 5B are explanatory diagrams showing signal processing of the electric shutter according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] [Configuration of this embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 and 2, an electric shutter 1 according to this embodiment is installed on the outdoor side of an opening in the exterior wall of a building such as a detached house. The opening is equipped with left and right vertical frames 2, a metal shutter case 3 attached to the upper ends of the left and right vertical frames 2, a metal winding body 4 disposed within the shutter case 3, and a metal shutter surface material 5 attached to the winding body 4 so that it can be wound up and unwound. In this embodiment, the shutter surface material 5 is composed of multiple slats 5A connected vertically. Both left and right ends of the shutter surface material 5 are guided vertically by the left and right vertical frames 2. The electric shutter 1 further includes an electric motor 6 (a so-called tubular DC motor in this embodiment) that rotates the winding body 4, a control unit 7 that controls the electric motor 6, a power supply unit 15 connected to the control unit 7, and a communication unit 9 that receives operation signals from an operation unit 8, converts them into instruction signals for the control unit 7, and transmits them to the control unit 7 (see FIGS. 1 and 5). The electric motor 6, the control unit 7, and the power supply unit 15 are disposed inside the winding body 4, and the power supply unit 15 is connected to an AC power source 16 (see FIG. 5) and is configured to be able to convert alternating current to direct current. The electric motor 6 is coupled to a rotating shaft 42 of the winding body 4 (described later) so as to be able to transmit rotation via a rotation transmission mechanism 6A (see FIG. 5) that is composed of a wheel, a clutch, and the like attached to the rotating shaft 42. The communication unit 9 is disposed outside the winding body 4 within the shutter case 3. In the following description, the left-right direction of the electric shutter 1 is the X-axis direction, the up-down direction of the electric shutter 1 is the Y-axis direction, and the projection direction of the electric shutter 1 is the Z-axis direction. The X, Y, and Z-axis directions are perpendicular to each other.

[0010] The shutter case 3 has a case main body 31 that extends in the X-axis direction and is open at the front in the Z-axis direction, a pair of case side surfaces 32 (see Figures 2 and 3) that are respectively disposed on the left and right ends of the case main body 31, and an inspection plate 33 (see Figure 2) that is removably attached to the pair of case side surfaces 32. The shutter case 3 also has a top plate, which is not shown. Note that Figure 3 shows the state in which the inspection plate 33 has been removed. The case main body 31 has a rear plate portion 311 along the X-axis direction and the Y-axis direction, and an upper plate portion 312 and a lower plate portion 313 extending forward in the Z-axis direction from the upper and lower edges of the rear plate portion 311, respectively, and is formed with an approximately C-shaped cross section. The pair of case side sections 32 are formed along the Y-axis direction and the Z-axis direction. Various attachment pieces 321 are formed on the case side sections 32, which are bent inward in the X-axis direction, and the case main body 31 and the like are screwed to the attachment pieces 321 on the rear side. Furthermore, an inspection plate 33 is removably screwed to the attachment pieces 321 on the front side. The inspection plate 33 extends in the X-axis direction to an extent that it can be attached to the attachment pieces 321 of the pair of case side surfaces 32, and is positioned to cover the front of the case body 31 when attached.

[0011] The winding body 4 is cylindrical and includes a fixed shaft body 41 attached to each of the pair of case side portions 32, and a substantially cylindrical rotating shaft body 42 that is rotatable relative to the fixed shaft body 41. The electric motor 6 and control unit 7 described above are also attached to the fixed shaft body 41.

[0012] A synthetic resin guide body 35 is arranged on the inner surface of one of the case side surfaces 32 to guide the left and right winding positions of the shutter face material 5 (left and right positions in the X-axis direction in the wound state). The guide body 35 includes a guide main body 36 arranged around the fixed shaft body 41, a connecting guide body 37 arranged forward of the winding body 4 and removably connected to an upper end portion 361 of the guide main body 36, and an additional guide body 38 removably connected to a lower end portion 362 of the guide main body 36.

[0013] 2 and 3, the guide main body 36 has a generally arc-shaped concave surface 363 recessed rearward relative to the winding body 4, with an upper end 361 disposed above the winding body 4 (fixed shaft body 41 in this embodiment) and a lower end 362 disposed below the winding body 4 (fixed shaft body 41 in this embodiment). In addition, in this embodiment, there is a remote control 81 (remote controller) as the operation unit 8 that wirelessly communicates with the communication unit 9, and a wired operation unit 82 (see FIG. 5) as the operation unit 8 that communicates via wire with the communication unit 9. A wire 111 having a terminal 11 facing forward and connected to the wired operation unit 82 so as to be able to transmit and receive signals, and a wire 121 having a terminal 12 facing forward similarly as above and connected to the control unit 7 so as to be able to transmit and receive signals are disposed at the upper end 361 of the guide main body 36. In this embodiment, the remote control 81 has three operation keys, an open key, a close key, and a stop key, and a display unit (monitor) that shows the state of the electric shutter 1, and is configured to transmit an open operation signal (operation signal) when the open key is operated, a close operation signal (operation signal) when the close key is operated, and a stop operation signal (operation signal) when the stop key is operated, and is also configured to transmit a confirmation operation signal (operation signal) that confirms the open / closed state of the electric shutter 1 by displaying on the display unit. Also, in this embodiment, the wired operation unit 82 is configured to transmit various operation signals, such as an open operation signal to wind up the shutter face material 5 by a predetermined amount and a close operation signal to unwind the shutter face material 5 by a predetermined amount, depending on the power usage status, etc.

[0014] As shown in FIGS. 2 to 4 , the connecting guide body 37 is formed by combining left and right half bodies 371, 372 in the X-axis direction, and has an arc-shaped concave surface 373 that is recessed forward relative to the winding body 4. An upper end 374 of the connecting guide body 37 faces rearward, and a lower end 375 of the connecting guide body 37 faces downward. A fixing portion 376 that is screwed to the case side surface 32 with a single screw 10 is formed at the upper part of the connecting guide body 37. Therefore, with the inspection plate 33 removed, the connecting guide body 37 can be easily removed by removing the screw 10 and pulling it forward. Alternatively, a new connecting guide body 37 can be easily attached by inserting the new connecting guide body 37 rearward, fitting the upper end 374 into the upper end 361 of the guide main body 36, and screwing the fixing portion 376 of the new connecting guide body 37 to the case side surface 32. The communication unit 9 is built into this connecting guide body 37. Since the communication unit 9 is built into the connecting guide body 37 made of synthetic resin and arranged as described above, wireless communication is less likely to be obstructed compared to when the communication unit 9 is provided inside the metal winding body 4, for example.

[0015] The additional guide body 38 is formed to extend in the Z-axis direction, and is arranged in a lower position relative to the reset switch 96 as shown in FIGS. 2 and 3 in a state where it is connected to the lower end portion 362 of the guide main body 36.

[0016] As shown in FIGS. 2 and 3, the above-mentioned guide body 35 is disposed around almost the entire periphery of the fixed shaft body 41, which makes the winding and unwinding operations of the shutter face material 5 more stable.

[0017] The control unit 7 has a calculation unit and a memory unit (not shown), and receives command signals from the communication unit 9 to control the supply of power to the electric motor 6, thereby operating the electric shutter as described below. In addition to control based on command signals from the communication unit 9, the control unit 7 also performs various other controls, such as setting and storing the upper and lower limit positions of the shutter face material 5 of the electric shutter 1, operation after emergency opening of the electric shutter 1, and stopping operation due to an overload on the electric motor 6. The control unit 7 monitors the shutter open / close position based on the number of rotations of the electric motor 6 obtained from an encoder attached to the electric motor 6.

[0018] As shown in FIG. 3 , the communication unit 9 includes a transceiver 91 that receives an operation signal transmitted from the operation unit 8, a converter 92 that converts the operation signal received by the transceiver 91 into an instruction signal for the control unit 7, and a transceiver 93 that transmits the instruction signal generated by the converter 92 to the control unit 7. The converter 92 includes a calculation unit and a memory unit (not shown), which are used to perform the signal conversion process. Terminals 94 and 95 connected to the transceivers 91 and 93, respectively, are disposed at an upper end 374 of the connecting guide body 37. Therefore, by moving the connecting guide body 37 from the front side to the rear side, the terminal 94 can be connected to the terminal 11 and the terminal 95 can be connected to the terminal 12. A reset switch 96 (switch) and a maintenance terminal 98 connected to the converter 92 are disposed at a lower end 375 of the connecting guide body 37. A light unit 97 consisting of an LED light that indicates the communication status of the communication unit 9 is disposed at the half body 372, which is positioned inside the half body 371 in the X-axis direction.

[0019] The above-described electric shutter 1 operates based on an operation signal from an operation unit 8. The operation of the electric shutter 1 with the remote control 81 is as follows. As shown in FIG. 6 , when an operation key on the remote control 81 is operated (S1), an operation signal is transmitted. When this operation signal is received by the transceiver 91 of the communication unit 9, the converter 92 converts the operation signal into an instruction signal (S2), which is a simple signal instructing the control unit 7 to rotate or stop the electric motor 6, and the transceiver 93 transmits the instruction signal to the control unit 7. If an error occurs in receiving the operation signal, an error signal is transmitted to the remote control 81. When the control unit 7 receives this instruction signal, it controls (S3) the supply of power from the power supply unit 15 to the electric motor 6. The shutter face material 5 is wound, unwound, or stopped by operating or deactivating the electric motor 6 controlled in this manner. When the control unit 7 receives the instruction signal described above, it transmits a receipt signal indicating that the instruction signal has been received, along with the control (S3). When the communication unit 9 receives this receipt signal, it transmits a signal converted so that the receipt signal can be received by the remote control 81. When the remote controller 81 receives this signal, it changes the display corresponding to the key operation on the display unit to a display indicating various operations (S4). For example, when the open key on the remote control 81 is operated (S1), an open operation signal is transmitted, the transceiver 91 of the communication unit 9 receives the open operation signal, and the converter 92 converts it (S2) into an open instruction signal, which is a simple signal that instructs the electric motor 6 to rotate, and the transceiver 93 transmits the open instruction signal to the control unit 7. The control unit 7 receives the open instruction signal and controls (S3) the supply of power to the electric motor 6 to rotate the electric motor 6. This causes the shutter face material 5 to retract. For example, when the close key on the remote control 81 is operated (S1), a close operation signal is transmitted, the transmitter / receiver 91 of the communication unit 9 receives the close operation signal, and the converter 92 converts it (S2) into a close instruction signal, which is a simple signal that instructs the electric motor 6 to rotate in the reverse direction, and the transmitter / receiver 93 transmits the close instruction signal to the control unit 7. The control unit 7 receives the close instruction signal and controls (S3) the supply of power to the electric motor 6 to rotate the electric motor 6 in the reverse direction. This causes the shutter face material 5 to extend. For example, when the stop key on the remote control 81 is operated S1, a stop operation signal is transmitted, the transmission / reception unit 91 of the communication unit 9 receives the stop operation signal, and the conversion unit 92 converts it S2 into a stop instruction signal, which is a simple signal that instructs the electric motor 6 to rotate in the reverse direction, and the transmission / reception unit 93 transmits the stop instruction signal to the control unit 7. The control unit 7 receives the stop instruction signal and controls S3 the supply of power to the electric motor 6 to stop the electric motor 6. This causes the shutter surface material 5 to stop. Also, for example, when the display on the display unit of the remote control 81 is changed from the previous state to a display confirming the open / closed state of the electric shutter 1 (S4), a confirmation operation signal is transmitted, the communication unit 9 receives the confirmation operation signal, and the conversion unit 92 converts it into a confirmation instruction signal for the control unit 7 (a signal for confirming the open / closed state of the electric shutter 1), and the transmission / reception unit 93 transmits the confirmation instruction signal to the control unit 7. The control unit 7 receives the confirmation instruction signal, confirms the open / closed position of the shutter, and transmits the confirmed state information to the communication unit 9. When the communication unit 9 receives the state information, it converts it into state information for the remote control 81 and transmits it. When the remote control 81 receives this state information, it changes the display on its display unit from the previous state to a display indicating the open / closed state of the electric shutter 1 (display change) (S5). In this way, the remote control 81 performs a series of signal processing from S1 to S5 to operate the electric shutter 1. The remote control 81 is equipped with a setting (pairing setting) mode that enables communication with the communication unit 9, and is configured to be able to register and delete settings. The setting operation S6 of the remote control 81 to register or delete settings is transmitted as a setting operation signal to the communication unit 9, and the communication unit 9 that receives this signal registers or deletes the settings of the remote control according to the content of the operation S6 (setting operation). When the processing is complete, a notification to that effect is transmitted to the remote control 81.

[0020] In addition, the communication unit 9, which is replaceably provided in the electric shutter 1 of this embodiment, is also compatible with the wired operation unit 82 described above, and converts the various operation signals described above from the wired operation unit 82 into instruction signals and transmits them to the control unit 7. For example, if the operation signal is a signal to wind up the shutter surface material 5 by a predetermined amount, it is converted into an instruction signal to rotate the electric motor 6 by an amount corresponding to the predetermined amount. Also, if the operation signal is a signal to unwind the shutter surface material 5 by a predetermined amount, it is converted into an instruction signal to rotate the electric motor 6 in the reverse direction by an amount corresponding to the predetermined amount. In this way, the electric shutter 1 is automatically operated by the remote control 81.

[0021] [Variations] In the embodiment, the communication unit 9 is built into the connecting guide body 37, but this is not limiting, and for example, the communication unit 9 may be provided in a location separate from the guide body 35 within the shutter case 3. In the above embodiment, the communication unit 9 is positioned so that it is covered from the front by the inspection plate 33 in the installed state, but this is not limited to this, and the communication unit 9 may be positioned at a position away from the position covered by the inspection plate. In the above embodiment, the guide body is provided with the additional guide body 38, but this may not be provided. In the above embodiment, the remote control 81 transmits a stop operation signal when the stop key is operated, and the communication unit 9 receives the stop operation signal and transmits a stop instruction signal to the control unit 7. However, for example, if the remote control 81 does not have a stop key and is configured not to transmit a stop operation signal, the communication unit 9 may be configured not to generate a stop instruction signal. In the above embodiment, the communication unit 9 is configured to generate a confirmation instruction signal and transmit it to the control unit 7, but this configuration may be omitted.

[0022] [Summary of the invention] The electric shutter of the present invention comprises a shutter case, a cylindrical reel placed within the shutter case, a shutter surface material attached to the reel so that it can be wound and unwound, an electric motor that rotates and drives the reel, a control unit that controls the electric motor, and a communication unit that receives an operation signal from an operating unit, converts it into an instruction signal for the control unit, and transmits it to the control unit, characterized in that the electric motor and the control unit are placed inside the reel, and the communication unit is placed outside the reel within the shutter case. According to the electric shutter of the present invention, by arranging the electric motor and control unit inside the winding body, it is possible to eliminate the need to create space between the winding body and the shutter case to accommodate the electric motor and control unit, compared to, for example, when the electric motor, control unit, and communication unit are all attached to the shutter case outside the winding body, thereby making it possible to slim down the shutter case.Furthermore, by arranging the communication unit outside the winding body inside the shutter case, it is possible to make the communication unit easily replaceable.

[0023] In the electric shutter of the present invention, the shutter case has a case main body portion that is open at the front, a pair of case side portions that are respectively arranged on the left and right ends of the case main body portion, and an inspection plate that is removably attached to the pair of case side portions and is arranged to cover the front of the case main body portion when attached, and the communication unit may be arranged so that it is covered from the front by the inspection plate when attached. With this configuration, when the inspection plate is installed, the communication unit is covered by the inspection plate, thereby maintaining the design, while when the inspection plate is removed, the communication unit can be easily removed and installed through the opening in the case main body.

[0024] In the electric shutter of the present invention, the winding body includes a fixed shaft body attached to the pair of case side surfaces and a rotating shaft body rotatable relative to the fixed shaft body, A guide body is disposed on at least one of the pair of case side surfaces to guide the left and right winding positions of the shutter face material, the guide body includes a guide main body disposed around the fixed shaft body, and a connecting guide body disposed forward of the winding body and removably connected to the guide main body, The communication unit may be provided in the connecting guide body. According to this configuration, by providing the communication unit on the connecting guide body, it is possible to eliminate the need to attach the communication unit at a position separate from the guide body, and the configuration can be simplified.

[0025] In the electric shutter of the present invention, the upper end of the guide body is arranged above the fixed shaft body, the lower end of the guide body is arranged below the fixed shaft body, the connecting guide body is connected to the upper end of the guide body, a switch for resetting the communication unit is arranged at the lower end of the connecting guide body, the guide body is provided with an additional guide body that is detachably connected to the lower end of the guide body, and the additional guide body may be arranged in a lower position relative to the switch. With this configuration, the additional guide body is positioned at the aforementioned position, reducing the risk of the switch being operated unintentionally, while when the switch is to be operated, the additional guide body can be removed to make it easy to operate.

[0026] In the electric shutter of the present invention, the instruction signal is a signal selected from at least either an open instruction signal for winding up the shutter surface material or a close instruction signal for unwinding the shutter surface material, and the control unit may be configured to receive the open instruction signal to control the rotation of the electric motor, and to receive the close instruction signal to control the reverse rotation of the electric motor. With this configuration, the communication unit converts the operation signal into a simple signal, either an open instruction signal or a close instruction signal, eliminating the need for the control unit to perform such signal conversion.When using an operation unit of a different standard other than the dedicated operation unit, the communication unit can be removed and replaced with another communication unit that corresponds to the other operation unit, making it possible to accommodate the other operation unit without having to replace the control unit located inside the reel. In addition to the open instruction signal and the close instruction signal, various other signals may be used, such as a stop instruction signal and a signal to move open or close at an arbitrary position.

[0027] In the electric shutter of the present invention, the instruction signal includes a confirmation instruction signal for confirming the open / closed state of the shutter, and the control unit receives the confirmation instruction signal to confirm the open / closed state of the shutter and transmits the confirmed state information to the communication unit, and the communication unit may transmit the state information to the operation unit. With this configuration, it is possible to transmit an operation signal to the communication unit while checking the open / closed state of the electric shutter on the operation unit. [Explanation of symbols]

[0028] 1...electric shutter, 111,121...wiring, 11,12,94,95,98...terminal, 15...power supply unit, 16...AC power supply, 2...vertical frame, 3...shutter case, 31...case main body, 311...rear plate, 312...upper plate, 313...lower plate, 32...case side, 321...mounting piece, 33...inspection plate, 35...guide body, 36...guide main body, 361,374...upper end, 362,375...lower end, 363,373...concave surface, 37...connecting guide body, 371,372...half Split body, 376...fixed part, 38...additional guide body, 4...winding body, 41...fixed shaft body, 42...rotating shaft body, 5...shutter surface material, 5A...slat, 6...electric motor, 6A...rotation transmission mechanism, 7...control part, 8...operation part, 81...remote control, 82...wired operation part, 9...communication unit, 91...transmitter / receiver part, 92...conversion part, 93...transmitter / receiver part, 96...reset switch, 97...light part, S1...key operation, S2...conversion, S3...control, S4, S5...display change, S6...setting operation.

Claims

1. The shutter comprises a shutter case, a cylindrical winding body disposed within the shutter case, a shutter surface material attached to the winding body so as to be capable of being wound and unwound, an electric motor that rotates and drives the winding body, a control unit that controls the electric motor, and a communication unit that receives an operation signal from an operation unit, converts it into an instruction signal for the control unit, and transmits it to the control unit; the electric motor and the control unit are disposed inside the winding body, The communication unit is disposed outside the winding body within the shutter case. A distinctive electric shutter.

2. The electric shutter according to claim 1, The shutter case has a case main body portion that is open at the front, a pair of case side portions that are respectively disposed on the left and right ends of the case main body portion, and an inspection plate that is removably attached to the pair of case side portions and that is disposed to cover the front of the case main body portion when attached, The communication unit is disposed so as to be covered from the front side by the inspection plate in the installed state. A distinctive electric shutter.

3. The electric shutter according to claim 2, the winding body includes a fixed shaft body attached to the pair of case side surfaces and a rotating shaft body rotatable relative to the fixed shaft body, A guide body is disposed on at least one of the pair of case side surfaces to guide the left and right winding positions of the shutter face material, the guide body includes a guide main body disposed around the fixed shaft body, and a connecting guide body disposed forward of the winding body and removably connected to the guide main body, The communication unit is provided on the connecting guide body. A distinctive electric shutter.

4. The electric shutter according to claim 3, an upper end of the guide body is disposed above the fixed shaft body; a lower end portion of the guide body is disposed below the fixed shaft body; The connecting guide body is connected to the upper end of the guide body, A switch for resetting the communication unit is disposed at the lower end of the connecting guide body, The guide body includes an additional guide body detachably connected to a lower end of the guide main body, The additional guide body is disposed at a lower position relative to the switch. A distinctive electric shutter.

5. The electric shutter according to any one of claims 1 to 4, The instruction signal is a signal selected from at least one of an opening instruction signal for winding up the shutter face material and a closing instruction signal for unwinding the shutter face material, The control unit is configured to receive the opening instruction signal to control the rotation of the electric motor, and receive the closing instruction signal to control the reverse rotation of the electric motor. A distinctive electric shutter.

6. The electric shutter according to claim 5, the instruction signal includes a confirmation instruction signal for confirming the shutter open / close state, the control unit receives the confirmation instruction signal, confirms the open / closed state of the shutter, and transmits the confirmed state information to the communication unit; The communication unit transmits the status information to the operation unit. A distinctive electric shutter.

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