KR102247217B1 - Automatic opening and closing device for sliding door - Google Patents

Abstract

Disclosed is an automatic opening/closing apparatus for a sliding door, which is able to, when an environment is formed where it is hard to receive power to control the sliding door, easily control the opening/closing of the sliding door manually. To this end, in accordance with the present invention, the automatic opening/closing apparatus for the sliding door comprises: a motor; an electronic clutch connected to a power transfer shaft of the motor to selectively transfer the rotary force of the motor; a belt conveyor which includes a first pulley attached and linked to the electronic clutch, a second pulley apart from the first pulley, and a rotary belt installed to cover the first pulley and the second pulley to be connected to the sliding door to move the sliding door in accordance with the rotation of the first pulley; a power supply unit which supplies electric current to the motor and the electronic clutch; and a controller which controls the operation of the motor and the power supply unit in accordance with a signal inputted from outside. In accordance with the present invention, anyone is able to manually control the position of a sliding door even if the power is not supplied.

Description

Automatic opening and closing device for sliding doors {AUTOMATIC OPENING AND CLOSING DEVICE FOR SLIDING DOOR}

The present invention relates to an automatic opening and closing device for a sliding door that can adjust the opening and closing of a sliding automatic door not only automatically but also manually, and more particularly, when an environment in which it is difficult to provide power to be used for controlling the sliding door is created. It relates to an automatic opening and closing device for a sliding door that can easily adjust the opening and closing of the sliding door manually.

An automatic door is a device that automatically opens and closes the door by sensing by a sensor at the top when a visitor stands in front of the door.It opens and closes through the power transmitted by the power transmission device, and the opening and closing performance of the automatic door depends on the structure of the power transmission device. do.

These automatic doors operate in the form of a sliding or opening type, and are installed in places where there is a lot of patient traffic, such as hospitals, or at entrances where cargo is frequently accessed, such as warehouses or storage stores, to prevent the traffic of patients or people carrying goods. It is intended for convenience.

In general, a sliding type automatic door has a configuration in which an object (ie, a person or other object) is detected by a sensor, and a forward/reverse motor is driven to automatically open and close the sliding door. That is, the forward/reverse motor is rotated by the sensor's sensing signal, the rotational drive of the forward/reverse motor rotates the pulley, and the rotation of the pulley drives the timing belt to open and close the sliding door connected thereto.

In such a sliding automatic door, several doors are installed in a wide area indoors. As shown in FIG. 1, the power of the driving motor 10 is transmitted from the chain 20, and the chain 20 ) Through the left / right sliding windows (40a, 40b) sliding on the rail 50, the controller 30 for controlling the driving motor 10 on one side of the rail and the window opening and closing limit A travel box 70 configured with a limit switch is installed at one end of the rail 50.

In such a conventional sliding type automatic door, even if the drive motor 10 is temporarily stopped while the door is opened as much as possible to come into contact with the limit switch position, it is out of its limit due to inertia due to the weight of the sliding door itself.

In addition, even when the sliding door is closed, it is out of its limit due to the weight and wear of the door itself.

Therefore, if the sliding door cannot stop at the position to stop in this way, the chain 20 that slides the sliding door by receiving the driving force of the driving motor becomes loose, so that it is often separated from the original position or is severely broken. It is difficult to maintain and manage the automatic door.

As an example of this, Korean Patent Registration No. 10-0792690 discloses that one driving rack gear, which moves linearly and reciprocates in different directions, is in contact with one side of the driving gear rotated by the driving motor. There is disclosed an automatic sliding door that can be used for a long time without being separated from the driving rack gear or the driving rack gear is disconnected even if the limit is exceeded.

However, when power is not normally supplied such as a fire or a power outage, such an automatic sliding door must open and close the sliding door manually, and this operation is very cumbersome and requires a lot of power, which is not easy for the elderly.

Korean Patent Registration No. 10-2040917 (announced on November 5, 2019) Korean Patent Registration No. 10-1999202 (announced on July 11, 2019) Republic of Korea Utility Model Registration No. 20-0416225 (announced on May 12, 2006) Korean Patent Registration No. 10-1971956 (announced on April 25, 2019)

Accordingly, an object of the present invention is a sliding door capable of moving the sliding door in a desired direction even with the force of moving the passive sliding door by blocking power transmission when the supply of power from the outside is stopped while the sliding door is moving. It is to provide an automatic opening and closing device for use.

In order to achieve the object of the present invention described above, in one embodiment of the present invention, a motor, an electromagnetic clutch connected to a power transmission shaft of a motor to selectively transmit rotational force of the motor, and an electromagnetic clutch attached to the electromagnetic clutch The first pulley interlocked with the first pulley, the second pulley spaced apart from the first pulley, and installed to surround the first pulley and the second pulley, and the sliding door is connected to move the sliding door according to the rotation of the first pulley An automatic opening/closing device for a sliding door including a belt conveyor including a rotating belt to allow, a power supply for supplying current to the motor and the electromagnetic clutch, and a controller for controlling the operation of the motor and the power supply according to signals input from the outside. to provide.

According to the present invention, if the supply of power is abnormally stopped during the process of moving the sliding door, the coupling relationship between the rotating shaft that transmits power to the sliding door and the sliding door is automatically released, even when the supply of power is cut off. Anyone, regardless of age or gender, can manually adjust the position of the sliding door.

In addition, the present invention can protect a driving device such as a motor and prevent safety accidents by blocking the transmission of the driving force transmitted from the motor even if an abnormal external force acts on the sliding door.

In addition, the present invention can provide an automatic closing function to the sliding door when a certain time elapses after a person passes through the sliding door.

In addition, the present invention can reduce the moving speed of the sliding door as the sliding door gradually approaches the door frame, so that even if the sliding door and the door frame are in contact, the sliding door and the door frame are not damaged.

1 is a front view showing a conventional automatic opening and closing device for a sliding door.
Figure 2 is a perspective view for explaining the automatic opening and closing device for a sliding door according to the present invention.
3 is a front view showing an automatic opening and closing device for a sliding door according to the present invention.
4 and 5 are schematic diagrams for explaining the operation of the brake unit according to the present invention.
6 is a block diagram showing the electrical connection of the automatic opening and closing device for a sliding door according to the present invention.

Hereinafter, an automatic opening and closing device for a sliding door according to preferred embodiments of the present invention (hereinafter, abbreviated as'opening and closing device for a sliding door') according to preferred embodiments of the present invention will be described in detail.

Figure 2 is a perspective view for explaining the opening and closing device for a sliding door according to the present invention, Figure 3 is a front view showing the opening and closing device for a sliding door according to the present invention.

2 and 3, the opening and closing device for a sliding door according to the present invention includes a motor 100 equipped with a power transmission shaft, and an electromagnetic clutch that blocks transmission of the driving force of the motor 100 according to an external force applied from the outside. 200), a belt conveyor 400 connected to the electromagnetic clutch 200 to rotate the rotating belt 430 according to the driving force transmitted from the electromagnetic clutch 200, and the motor 100 and the electromagnetic clutch 200 A power supply unit 550 for supplying current to and a controller 500 for controlling the operation of the power supply unit 550 according to a signal input from the outside, and optionally between the motor 100 and the electromagnetic clutch 200 It may further include a worm gear 300 that is installed and converts the driving force of the motor 100 in the vertical direction.

In addition, the opening and closing device for a sliding door according to the present invention includes a housing 600 providing a protective space so that the motor 100, the electromagnetic clutch 200, the power supply unit 550, and the controller 500 are not exposed to the outside, and the sliding door It may further include an external signal input means for generating an input signal for determining the moving direction of the door, and providing the input signal to the controller 500.

At this time, the belt conveyor 400 is coupled to a sliding door mounted on a rail providing a slide movement path.

In addition, the opening and closing device for sliding doors according to the present invention may be installed on the door for automatic opening and closing of the door, or may be installed on a general window for automatic opening and closing of a general window for ventilation, and automatically when a fire occurs in the building. It may be installed in the exhaust window for automatic opening and closing of the exhaust window that is open and discharges smoke.

Hereinafter, each component will be described in more detail with reference to the drawings.

Referring to Figure 3, the opening and closing device for a sliding door according to the present invention may further include a housing 600.

The housing 600 is to provide the outer shape of the opening and closing device for a sliding door, it is installed on a door leaf or a door frame. At this time, the housing 600 may be installed on the upper door frame to connect the door leaf and the door frame to each other, or may be installed on the lower door frame.

As a specific aspect, the housing 600 according to the present invention may be formed to have a rectangular parallelepiped structure including an upper plate, a lower plate, and four side plates provided between the upper plate and the lower plate. In this case, the upper plate or the lower plate may be provided with a through hole through which an adapter connecting the sliding door to the belt conveyor 400 passes.

In addition, the housing 600 may be formed with a screw coupling hole for coupling screws or the like along the rim so that the position of the housing 600 may be fixed in close contact with the door leaf or the door frame.

2 and 3, the opening and closing device for a sliding door according to the present invention includes a motor 100.

The motor 100 generates a driving force by receiving current from the power supply unit 550, and includes a power transmission shaft rotating in a forward or reverse direction. If necessary, the motor 100 may be provided with an output gear that is fixed to the power transmission shaft and rotates in the same direction as the power transmission shaft.

It is preferable that the motor 100 is installed in the longitudinal direction of the housing 600 inside the housing 600.

In addition, the motor 100 may be coupled to the first bracket coupled to the inner surface of the housing 600 to be fixed inside the housing 600.

2 and 3, the opening and closing device for a sliding door according to the present invention may further include a first reducer 700 or a second reducer (not shown), or both.

The first reducer 700 is provided between the motor 100 and the electromagnetic clutch 200, and is coupled to the power transmission shaft of the motor 100 to reduce the speed of the rotational force transmitted from the motor 100 to a predetermined reduction ratio. It provides a function of decelerating, amplifying the driving force transmitted from the motor 100 by the reduction ratio, and transmitting it to the electromagnetic clutch 200.

Specifically, the first reducer 700 includes a plurality of planetary gears meshed with the power transmission shaft of the motor 100 and a ring gear meshed with each planetary gear so that each planetary gear can rotate around the power transmission shaft. Can be configured.

In addition, the first reducer 700 may be coupled to a second bracket coupled to the inner surface of the housing 600 to be fixed inside the housing 600.

The second reducer is provided between the electromagnetic clutch 200 and the first pulley 410, and the electromagnetic clutch 200 so that the first pulley 412 constituting the belt conveyor 400 rotates at a specified rotation angle. It provides a function to reduce the number of input rotations transmitted from the output rotation number to the specified output rotation number. To this end, the second reducer is connected through the power transmission shaft of the electromagnetic clutch 200.

For example, when the power transmission shaft of the electromagnetic clutch 200 rotates 10 times, when the sliding door in the closed position moves to the fully open position, the second reducer having a 10:1 reduction ratio is the power of the electronic clutch 200 When coupled to the transmission shaft, when the first pulley rotates once, the sliding door in the closed position can be moved to the fully open position. In this case, the reduction ratio means a rotation ratio between the input rotation speed of the power transmission shaft of the electromagnetic clutch 200 and the output rotation speed of the drive shaft connected to the second speed reducer.

In addition, the second reducer may be coupled to a third bracket coupled to the inner surface of the housing 600 to be fixed inside the housing 600.

2 and 3, the opening and closing device for a sliding door according to the present invention includes an electromagnetic clutch 200.

The electromagnetic clutch 200 selectively transmits the rotational force of the motor 100 to the belt conveyor 400 and includes a first clutch plate 210 and a second clutch plate 220.

As an embodiment, the electromagnetic clutch 200 according to the present invention may be installed between the motor 100 and the first pulley 410.

As another embodiment, it may be installed between the worm gear 300 and the first pulley 410 according to the present invention.

The first clutch plate 210 is connected to the power transmission shaft of the motor 100, the power transmission shaft of the first reducer 700, or the power transmission shaft of the worm wheel. 2 It may be composed of an electromagnet or a metal plate in which the clutch coil is wound on the outside so that it can be attached to the clutch plate 220.

As a first embodiment, the first clutch plate 210 according to the present invention is a first pulley so as to transmit the rotational force of the motor 100 to the first pulley 410 when current is supplied to the clutch coil from the power supply unit 550. It is attached to the second clutch plate 220 connected to 410. In addition, when the current supplied to the clutch coil from the power supply unit 550 is blocked, the first clutch plate 210 is connected to the first pulley 410 so that the rotational force of the motor 100 is not transmitted to the first pulley 410. 2 It is detached from the clutch plate 220.

As a second embodiment, the first clutch plate 210 according to the present invention is provided with a worm gear 300 so as to transmit the rotational force of the motor 100 to the worm gear 300 when current is supplied to the clutch coil from the power supply unit 550. ) Is attached to the second clutch plate 220 connected. And the first clutch plate 210 is a second clutch connected to the worm gear 300 so that the rotational force of the motor 100 is not transmitted to the worm gear 300 when the current supplied to the clutch coil from the power supply unit 550 is cut off. It is detached from the plate 220.

As a third embodiment, the first clutch plate 210 according to the present invention is connected to the second reducer so that when current is supplied to the clutch coil from the power supply 550, the rotational force of the motor 100 can be transmitted to the second reducer. 2 Attached to the clutch plate 220. And the first clutch plate 210 is the second clutch plate 220 connected to the second reducer so that when the current supplied to the clutch coil from the power supply unit 550 is cut off, the rotational force of the motor 100 is not transmitted to the second reducer. Is detached from

The second clutch plate 220 is disposed to face the first clutch plate 210 and is fixed to the first pulley 410 or fixed to the end of the drive shaft 310 of the worm gear 300. In addition, the second clutch plate 220 moves in a horizontal direction as current is supplied to the clutch coil and is attached to the first clutch plate 210, and interlocks the first pulley 410 with the first clutch plate 210. Alternatively, the drive shaft 310 of the worm gear 300 is interlocked with the first clutch plate 210.

In other words, when the supply of the current applied to the clutch coil is stopped, the second clutch plate 220 is not attached to the first clutch plate 210 and remains separated from the first clutch plate 210. Even if the plate 210 is rotated by the motor 100, the second clutch plate 220 is not rotated.

In addition, the second clutch plate 220 may be formed of an electromagnet or a metal plate to be attached to the first clutch plate 210 when magnetic force is formed in the clutch coil.

The electromagnetic clutch 200 may be coupled to a fourth bracket coupled to an inner surface of the housing 600 to be fixed inside the housing 600.

2 and 3, the opening and closing device for a sliding door according to the present invention may further include a worm gear 300.

The worm gear 300 is provided to change the direction of rotational force transmitted from the motor 100, the electromagnetic clutch 200, or the first reducer 700, and includes a drive shaft 310 and a worm wheel 320 It is composed of.

The drive shaft 310 of the worm gear 300 is connected to the motor 100, the electromagnetic clutch 200, or the first reducer 700, and transmits the rotational force of the motor 100 to the worm wheel 320. (worm, 312) is provided. Specifically, one end of the drive shaft 310 of the worm gear 300 is connected to the power transmission shaft of the motor 100, the second clutch plate 220, or the first reducer 700. If necessary, the other end of the drive shaft 310 facing the one end may be connected to a brake unit 800 or a circular magnet 910 to be described later.

The worm wheel 320 is coupled to the worm 312 of the drive shaft 310 to interlock with the drive shaft 310, and is disposed in a vertical direction to the drive shaft 310 and in close contact with the worm 312 of the drive shaft 310 It is engaged and interlocks with the drive shaft 310.

If necessary, the worm gear 300 is a first passing through the worm wheel 320 to support the axial rotation of the worm wheel 320 so that the worm wheel 320 is stably installed inside the housing 600. The central axis may be installed on the inner surface of the housing 600.

2 and 3, the opening and closing device for a sliding door according to the present invention includes a belt conveyor 400.

The belt conveyor 400 moves the sliding door so that the sliding door is opened and closed according to the driving force transmitted from the worm gear 300, and the first pulley 412 and the second pulley 420 and the rotating belt 430 ).

The first pulley 412 is attached to the electromagnetic clutch 200 or the worm wheel 320 and interlocks with the electromagnetic clutch 200 or the worm wheel 320, and a timing pulley may be used. At this time, the first pulley 412 may be formed to have an enlarged diameter than the worm wheel 320 as shown in FIG. 2 according to the moving distance of the sliding door that is converted from a completely closed state to a fully open state, and FIG. It may be formed to have a diameter smaller than that of the worm wheel 320 as shown in 3.

The first pulley 412 is an electromagnetic clutch 200 or a worm wheel 320 so that it does not come into contact with the first reducer 700, the electromagnetic clutch 200, the worm gear 300, the brake unit 800, etc. located in the vicinity. A spacer may be provided between and.

At this time, the spacer is installed between the electromagnetic clutch 200 and the first pulley 412 so that the first pulley 412 is disposed at a position spaced apart from the electromagnetic clutch 200, and the first pulley 412 is an electromagnetic clutch. The first pulley 412 is fixed to the electromagnetic clutch 200 so as to be interlocked with the 200, and may be formed in a rod shape or a cylindrical shape.

If necessary, the spacer is installed between the worm wheel 320 and the first pulley 412 so that the first pulley 412 is disposed at a position spaced apart from the wom wheel 320, and the first pulley 412 is The first pulley 412 is fixed to the worm wheel 320 so as to be interlocked with the worm wheel 320, and may be formed in a rod shape or a cylindrical shape.

The second pulley 420 is installed to be spaced apart from the first pulley 412 so as to secure a moving distance of the sliding door, and a timing pulley may be used. In addition, the second pulley 420 may be installed inside the housing 600 through a second central axis installed on the inner surface of the housing 600 so as to penetrate the center. In this case, the second central axis serves to support the rotation of the second pulley 420. In addition, the second pulley 420 may be formed to have the same diameter as the first pulley 412 or may be formed to have a different diameter from the first pulley 412. If necessary, the second pulley 420 may be installed at the center of the second pulley 420 in a direction opposite to the second central axis, and may be provided with a third central axis 422 interlocking with the second pulley 420. .

The rotating belt 430 is installed to surround the first pulley 412 and the second pulley 420, and the sliding door is connected to rotate the sliding door in the left and right direction according to the rotation of the first pulley 412. Move. As the rotating belt 430, it is preferable to use a timing belt so that the orbital movement can smoothly proceed according to the rotation of the first pulley 412.

4 and 5 are schematic diagrams for explaining the operation of the brake unit 800 according to the present invention. 2 to 5, the opening and closing device for a sliding door according to the present invention may further include a brake unit 800.

The brake unit 800 is connected to the third central axis 422 of the second pulley 420 or the drive shaft 310 of the worm gear 300, and is partially opened so that no person can enter or exit for ventilation. The movement of the sliding door is restricted so that the sliding door is not further opened by external force.

To this end, the brake unit 800 limits the movement of the third central shaft 422 or limits the movement of the drive shaft 310 of the worm gear 300. Specifically, the brake unit 800 is attached to the third central shaft 422 or the drive shaft 310 as current is supplied from the power supply unit 550 to block the rotation of the third central shaft 422 or the drive shaft 310 do. The brake unit 800 may also be used in the case of restricting the movement of the third central shaft 422 or the drive shaft 310 so that the closed sliding door is not opened by an external force such as wind.

Specifically, the brake unit 800 is a brake coil 810 wound to be fixed to the outside of the third central shaft 422 or the drive shaft 310, and the brake coil ( 810) and generates a frictional force between the third central shaft 422 and the housing 600 or between the drive shaft 310 and the housing 600 to prevent the rotation of the second pulley 420 or the drive shaft 310. It is composed of a friction plate (820).

The friction plate 820 is formed to have a disk structure, and a central through hole is formed in the inside of the disk so that the third central shaft 422 or the driving shaft 310 can pass therethrough, and the housing 600 along the outer circumferential surface of the disk. A plurality of friction protrusions 822 are provided in contact with the inner surface of the to generate a friction force. If necessary, a non-slip pad made of rubber or silicone may be provided at an end of the friction protrusion 822 contacting the inner surface of the housing 600 in order to increase the frictional force.

Since the friction plate 820 is detached from the brake coil 810 when the current supplied to the brake coil 810 is cut off, the third central shaft 422 or the drive shaft 310 to which the brake coil 810 is coupled is rotated. Does not affect And when current is supplied to the brake coil 810, the friction plate 820 is attached to the brake coil 810 while moving along the third central axis 422 or the drive shaft 310, and is created between the housing 600. Frictional resistance is provided to the third central shaft 422 or the drive shaft 310 so that the third central shaft 422 or the drive shaft 310 is not rotated by an external force through the friction force.

The opening and closing device for a sliding door according to the present invention may further include a motion detection means for detecting a moving distance and a moving direction of the sliding door.

The motion detection means may include a circular magnet 910 and a rotary position sensor 920.

The circular magnet 910 is installed at the end of the third central shaft 422 or the drive shaft 310 and is formed of an N-pole and an S-pole that divides the whole into two.

The rotational position sensor 920 generates a motion detection signal by detecting the moving distance and the moving direction of the sliding door according to the axis rotation of the circular magnet 910, and transmits the motion detection signal to the controller 500. . Specifically, the rotary position sensor 920 is installed to face the circular magnet 910, and according to the axial rotation of the circular magnet 910, the rotation angle and the rotation direction of the third central shaft 422 or the drive shaft 310 are adjusted. It detects the moving distance and moving direction of the sliding door.

For example, when the speed reducer is not installed, the rotary position sensor 920 detects the rotation of the first pulley and 410 and the second pulley 420 10 turns as a movement of 1 m of the sliding door. And, when the speed reducer is installed, a motion detection signal is generated to detect the rotation of the first pulley and 410 and the second pulley 420 by 1 m movement of the sliding door.

6 is a block diagram showing an electrical connection relationship of the opening and closing device for a sliding door according to the present invention. Referring to Figure 6, the opening and closing device for a sliding door according to the present invention includes a power supply (550).

The power supply unit 550 supplies current to the motor 100, the electromagnetic clutch 200, the first reducer 700, the second reducer, and the brake unit 800, and is installed inside the housing 600. It is connected to the motor 100, the electromagnetic clutch 200, the first reducer 700, the second reducer, and the brake coil 810.

The power supply unit 550 receives current from an external power supply unit 550 such as a commercial power supply, and receives the current according to the control of the controller 500, the motor 100, the electromagnetic clutch 200, the first reducer 700, It is supplied to the second speed reducer and the brake coil 810.

The opening and closing device for a sliding door according to the present invention may further include an external signal input means (not shown).

The external signal input means generates a management signal requesting the opening or closing of the sliding door, and provides the management signal to the controller 500, and is installed around the sliding door.

More specifically, the external signal input means may be configured to receive an open/close signal for the sliding door and transmit it to the controller 500.

In addition, the external signal input means generates a pressure detection signal by sensing when an external force acts in a direction opposite to the moving direction of the sliding door while the sliding door is moving, and transmits the pressure detection signal to the controller 500. Can be configured to

In addition, the external signal input means may be configured to receive a stop signal for preventing the sliding door from moving in the left and right directions from the current position and transmit it to the controller 500.

To this end, the external signal input means may be configured to include a sensor unit, a button switch, or both.

The sensor unit includes at least one selected from the group consisting of a contact sensor, a pressure sensor, and a proximity sensor.

The contact sensor receives a touch signal from a person passing through the sliding door and provides the touch signal to the controller 500, and may be configured with one or more touch sensors.

The touch sensor is installed on a sliding door or a door frame of a sliding door, and generates a touch signal by sensing a touch of a person entering and transmitting it to the controller 500. At this time, the controller 500 controls the rotation direction of the motor 100 to open the sliding door when a touch signal is received, and controls the power supply 550 to supply current to the motor 100 and the electromagnetic clutch 200. do.

The pressure sensor is a sensor that generates a pressure detection signal by detecting an external force acting on the sliding door.When an external force acts on the sliding door by a person or wind while the sliding door is rotating, it generates a pressure detection signal. It is provided to the controller 500. At this time, the controller 500 controls the motor 100 to supply the electronic clutch 200 by controlling the power supply 550 so as not to damage the parts of the driving device when a pressure detection signal is received while rotating the sliding door. Cut off the current. In this way, when the supply of current to the electromagnetic clutch 200 is cut off, even if the motor 100 is driven, the driving force of the motor 100 is not transmitted to the belt conveyor 400, so even if an external force acts on the sliding door, the motor 100 ), there is no problem of conflicting driving force and vortex force.

The proximity sensor generates a monitoring signal by monitoring the position of a person passing through the sliding door, and provides the monitoring signal to the controller 500, and may be composed of one or more motion monitoring sensors.

The motion monitoring sensor is installed on the door frame of the sliding door, generates a monitoring signal by monitoring a person entering the monitoring area set in the sliding door, and transmits the monitoring signal to the controller 500. At this time, the controller 500 controls the rotation direction of the motor 100 to open the sliding door when a monitoring signal is received, and controls the power supply 550 to supply current to the motor 100 and the electromagnetic clutch 200. do.

Meanwhile, the button switch receives a pressure signal for ON/OFF from a person passing through the sliding door and provides the pressure signal to the controller 500, and may be composed of one or more button switches.

The button switch is installed on a sliding door or a door frame of a sliding door, and generates a pressure signal by detecting a pressing of a predetermined ON button or an OFF button, and transmits the pressure signal to the controller 500. At this time, the controller 500 controls the rotation direction of the motor 100 to open the sliding door when a pressure signal for the ON button is received, and the power supply unit ( 550).

6, the opening and closing device for a sliding door according to the present invention includes a controller 500.

The controller 500 controls the operation of the motor 100, the power supply 550, and the brake 800 so that the driving device can control the opening and closing of the sliding door according to a detection signal for a person passing through the sliding door. To this end, it is electrically connected to the motor 100, the power supply 550, and the brake coil 810.

When the stop signal is transmitted from the external signal input means, the controller 500 is a power supply unit to supply current to the brake coil 810 so that the sliding door does not move by an external force of an intruder when the sliding door is partially opened or closed. Control 550.

The controller 500 analyzes the motion detection signal provided from the rotary position sensor 920 to analyze the moving distance of the sliding door, and when a predetermined time elapses after the sliding door is opened, the sliding door is automatically It may be configured to control the motor 100 to be moved in the closing direction as much as the moving distance moved in the opening direction so as to be closed. More specifically, when the sliding door moves in the closing direction, the controller 500 analyzes the motion detection signal provided from the rotary position sensor 920 so that the moving distance of the sliding door becomes 0m, which is the initial state. Control 100.

The controller 500 is the rotation direction of the motor 100 so that the sliding door is opened when the movement of a person entering the sliding door is monitored through a monitoring signal collected from a motion monitoring sensor in a state in which the sliding door is closed. Can be configured to control. At this time, the controller 500 controls the power supply 550 so that current is supplied to the electromagnetic clutch 200 and the supply of the current to the brake 800 is cut off.

In this way, the controller 500 controls the movement of the sliding door so that the sliding door is stopped for a predetermined time in the open state, and then controls the movement of the sliding door to rotate to the initial position.

The controller 500 analyzes the motion detection signal provided from the rotary position sensor 920 to analyze the moving distance of the sliding door, and when the moving distance reaches a predetermined section, the moving speed of the sliding door is decelerated. As much as possible, current may be supplied to the electromagnetic clutch 200 through the power supply unit 550 and the rotational speed of the motor 100 may be gradually reduced. Specifically, when the sliding door is moved in the direction in which the sliding door is opened or closed, the controller 500 has a side door frame and 5 cm to 20 so that noise or safety accidents such as finger jamming do not occur when the sliding door is strongly collided with the door frame. The sliding door is controlled to move slowly in the section with a distance of cm, and the sliding door is controlled to move quickly in the section with a distance exceeding 5 cm to 20 cm with the side door frame.

Although the above has been described with reference to the preferred embodiments of the present invention, those skilled in the art will be able to variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the following claims. You will understand that you can.

100: motor 200: electromagnetic clutch
210: first clutch plate 220: second clutch plate
300: worm gear 310: drive shaft
312: worm 320: worm wheel
400: belt conveyor 410: first pulley
420: second pulley 430: rotating belt
500: controller 550: power supply
600: housing 700: first reducer
800: brake unit 810: brake coil
820: friction plate 822: friction protrusion
910: circular magnet 920: rotary position sensor

Claims (10)

motor;
An electromagnetic clutch connected to the power transmission shaft of the motor to selectively transmit the rotational force of the motor;
A first pulley attached to the electromagnetic clutch and interlocking with the electromagnetic clutch, a second pulley spaced apart from the first pulley, and installed to surround the first pulley and the second pulley, and a sliding door connected to the first pulley Belt conveyor including a rotating belt for moving the sliding door according to the rotation of the;
A power supply for supplying current to the motor and the electromagnetic clutch;
A controller for controlling an operation of a motor and a power supply unit according to a signal input from the outside;
A brake unit connected to the first pulley or the second pulley and attached to the first pulley or the second pulley as current is supplied from the power supply unit to block the rotation of the first pulley or the second pulley;
A movement monitoring sensor for generating a monitoring signal by monitoring a person entering the monitoring area set in the sliding door, and transmitting the monitoring signal to a controller; And
An external signal input means for receiving a stop signal for preventing the sliding door from moving in a left-right direction from a current position and transmitting it to a controller,
The electromagnetic clutch is connected to the power transmission shaft of the motor and is disposed to face the first clutch plate and the clutch coil is wound on the outside, and is fixed to the first pulley, and current is supplied to the clutch coil. As a result, it is attached to the first clutch plate and interlocks the first pulley with the first clutch plate, and when the supply of the current applied to the clutch coil is stopped, it is not attached to the first clutch plate and is kept away from the first clutch plate. It is composed of a second clutch plate,
The controller controls the rotation direction of the motor to open the sliding door when the monitoring signal is received, and controls the power supply so that current is supplied to the motor and the electronic clutch. When the stop signal is transmitted, the sliding door is caused by an external force of the intruder. Automatic opening and closing device for a sliding door, characterized in that supplying current to the brake unit so as not to move. The method of claim 1,
A worm gear including a drive shaft provided between the motor and the electromagnetic clutch and provided with a worm connected to the power transmission shaft of the motor to transmit the rotational force of the motor, and a worm wheel in close contact with the worm and engaged with the worm Automatic opening and closing device for a sliding door, characterized in that it further comprises. The method of claim 1,
A first reducer provided between the motor and the electromagnetic clutch to reduce the speed of the rotational force transmitted from the motor to a predetermined reduction ratio, and amplify the driving force transmitted from the motor by the reduction ratio; And
A second provided between the electromagnetic clutch and the first pulley to reduce the number of input rotations transmitted from the electromagnetic clutch to a set output rotation rate so that the first pulley rotates forward and reverse within a specified rotation angle. Automatic opening and closing device for a sliding door, characterized in that it further comprises a reducer. delete delete The method of claim 1,
The external signal input means is configured to receive an open/close signal for the sliding door and transmit it to the controller,
The controller controls the operation of the motor and the power supply unit so that the sliding door is moved according to the opening/closing signal, but when an external force signal is provided from the external signal input means while the sliding door is moving, it is supplied to the electronic clutch through the power supply unit. Automatic opening and closing device for a sliding door, characterized in that to block the current. The method of claim 1, wherein the electromagnetic clutch
A first clutch plate connected to the power transmission shaft of the motor and having a clutch coil wound on the outside; And
A second clutch disposed to face the first clutch plate, fixed to the first pulley, attached to the first clutch plate as current is supplied to the clutch coil to interlock the first pulley with the first clutch plate Automatic opening and closing device for a sliding door, characterized in that consisting of a plate. The method of claim 1,
A circular magnet installed in the center of the first pulley or the second pulley and formed of an N-pole and an S-pole dividing the whole into two; And
It is installed to face the circular magnet, detects the rotation angle and direction of rotation of the sliding door according to the rotation of the axis of the circular magnet to generate a motion detection signal, and further provides a rotational position sensor that provides the motion detection signal to the controller. Automatic opening and closing device for a sliding door, characterized in that it comprises. The method of claim 8, wherein the controller
The moving distance of the sliding door is analyzed by analyzing the motion detection signal provided from the rotary position sensor, and the sliding door is opened so that the sliding door is automatically closed when a predetermined time elapses after the sliding door is opened. Automatic opening and closing device for a sliding door, characterized in that controlling the motor to move in the closing direction as much as the distance moved in the direction. The method of claim 8, wherein the controller
By analyzing the motion detection signal provided from the rotary position sensor, the moving distance of the sliding door is analyzed, and when the moving distance reaches a predetermined section, the electric clutch is passed through the power supply so that the moving speed of the sliding door is reduced. Automatic opening and closing device for a sliding door, characterized in that it is characterized in that to supply and gradually decelerate the rotational speed of the motor.

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