KR101549788B1 - Regenerative Brake Apparatus fop Automatic Door - Google Patents

Abstract

The present invention relates to a device opening and closing and controlling an automatic door (10). According to the present invention, the present invention comprises: a power means having a main SMPS (31) and having an auxiliary SMPS (32) and having a battery (35); and a control means (40) having an infrared ray sensor (41) and having a position sensor (42) and having a motor driving unit (46) and having a control unit (48) and having a regenerative control unit (49). A regenerative brake sub-routine of the control unit (48) stores electromotive force energy of the motor (20) in the battery (35), and stops the regenerative brake sub-routine and opens the automatic door (10) when an access of a passenger is detected during a deceleration process of the closed automatic door (10). Therefore, the present invention maintains operation reliability and safety and induces electrical energy saving with respect to a building.

Description

[0001] Regenerative Brake Apparatus [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a regenerative braking apparatus for automatic doors, and more particularly, to an automatic door regenerative braking apparatus for reducing electric energy by automatically applying doors to various buildings.

With the difficulty of securing reserve power every year, there is an increasing trend to introduce regenerative braking in large-scale power consumers including the railway sector. In addition to energy storage system (ESS) and energy management system (EMS), it is recognized as a creative electricity saving business model, and the scope of application is expanding to electric cars and elevators of various buildings.

Korean Patent Registration No. 1241237 (Prior Art 1) and Korean Patent Laid-Open Publication No. 2009-0118712 (Prior Art 2) are known as prior art documents which can be referred to in connection with regenerative braking.

Prior art 1 proposes a configuration in which inertia energy is converted into electric energy by using a motor at the time of braking and stored in an electric double layer capacitor, and then the recovered electric energy is used for driving the motor again. Accordingly, vibration and noise are not generated by eliminating braking due to mechanical frictional resistance, there is no environmental pollution due to no wear of brake shoes, and an effect of improving energy recovery efficiency is expected.

Prior Art 2 is a battery capable of being charged; A motor driven by receiving power from the battery when accelerating, and generating a counter electromotive force during braking; A DC / DC converter for performing DC / DC conversion on the counter electromotive force to charge the battery; And a controller for controlling the motor and the DC / DC converter according to an acceleration signal and a braking signal. Accordingly, it is expected that the structure is simple, the manufacturing cost is low, the energy loss is small, and the practicality is enhanced by being combined with the power transmission device.

Although the above-mentioned prior art provides basic principles of regenerative braking, it is related to electric vehicles, so it is urgent to develop application technologies for various buildings, which are large-scale energy consuming places. For example, demand for automatic inquiries may increase due to the surge in the size of luxury apartments, hotels, and office buildings.

Korean Patent Registration No. 1241237 entitled "Regenerative braking device using an electric double layer capacitor" (Published on July 2, 2012) Korean Patent Publication No. 2009-0118712 "Regenerative braking device and control method thereof" (published on Nov. 18, 2009)

The object of the present invention is to provide an automatic door open / close device for automatically opening and closing doors of various buildings, .

Another object of the present invention is to provide an automatic door regenerative braking device that maintains the reliability and safety of operation of an automatic door by regenerative braking.

According to an aspect of the present invention, there is provided an apparatus for opening and closing an automatic door, comprising: a motor provided to provide opening and closing power of the automatic door; A main SMPS for generating and supplying operating power to drive the motor and generating an operating power by a commercial power supply, a secondary SMPS for generating operating power when there is no input from a predetermined time sensor, Power supply means including a battery for generating power; An infrared sensor for performing a program of regenerative braking with an algorithm set in the automatic door opening and closing process and detecting an approach of a passenger, a position sensor for detecting the opened position of the automatic door, and a motor driver And a regenerative braking unit for detecting a regenerative braking voltage generated when the motor is braked and determining whether to store the regenerative braking voltage in the battery, wherein the regenerative braking subroutine comprises: Wherein the regenerative braking subroutine of the control unit stores the back electromotive force energy of the motor in the process of decelerating the automatic door to be opened or closed and detects the approach of the passenger in the process of decelerating the automatic door closing, The routine is interrupted and the automatic door is opened.

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It should be understood, however, that the terminology or words of the present specification and claims should not be construed in an ordinary sense or in a dictionary, and that the inventors shall not be limited to the concept of a term It should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be properly defined. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It is to be understood that equivalents and modifications are possible.

As described above, the present invention applies to the field of automatically opening and closing the doors of various buildings, thereby saving electric energy for a large-scale power consuming building while maintaining operational reliability and safety.

1 is a block diagram schematically showing an automatic door according to the present invention;
2 is a block diagram showing a main circuit connection of the control means according to the present invention;
3 is a block diagram showing a circuit connection of the power supply unit according to the present invention;
4 is a block diagram showing regenerative braking of the control unit according to the present invention;
5 is a flowchart showing an operation example of the control unit according to the present invention

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

The present invention proposes but is not necessarily limited to an apparatus for performing opening and closing and braking of an automatic door 10 installed in a building or the like. A pair of automatic doors 10 are installed on respective belts 11 mounted on pulleys 13 via respective hangers 15 and are driven by the operation of a driving source (motor) connected to one side pulley 13 They are moved in opposite directions to open and close. And an operation of mitigating the impact by performing deceleration by braking in the opening and closing strokes of the automatic door 10.

According to the present invention, a motor (20) is provided to provide opening and closing power of the automatic door (10). The motor 20 generates reverse torque and electromotive force when a rotational force due to an external inertia force is applied in a state in which power supply is cut off. The counter-electromotive force is used as an energy source through power generation and storage, and the reverse torque can be utilized as the braking force of the automatic door (10).

In addition, according to the present invention, the power supply means (30) generates and applies operating power to drive the motor (20). The operating power source of the power source means 30 is variously converted so as to drive the control means 40, which will be described later, in addition to the motor 20. The power supply means (30) is based on an independent power supply, but it is preferable that the power supply means (30) is configured so that an external commercial power supply can be used immediately.

The power supply unit 30 includes a main SMPS 31 for generating an operating power by a commercial power supply, an auxiliary SMPS 32 for generating an operating power when there is no input from the predetermined time sensors 41 and 42, And a battery (35) that generates an operating power when the battery voltage is equal to or higher than a predetermined voltage. SMPS (Switching Mode Power Supply) is advantageous to apply to automatic door 10 because it supplies a relatively large capacity power source with a small and lightweight structure. The main SMPS 31 converts an external AC voltage, which is a commercial power source, into a DC voltage, and applies a stabilized DC voltage to the motor 20 through square wave conversion in the same manner as described above. The auxiliary SMPS 32 supplies the entire power supply in the form of a low power instead of the main power when there is no input from the constant time sensors 41 and 42. [ The battery 35 applies a stabilized DC voltage to the motor 20 in place of the main power when the voltage becomes equal to or higher than a predetermined level.

Of course, the power of the main SMPS 31 and the auxiliary SMPS 32 is also applied to the control means 40 in addition to the motor 20, which is advantageous for securing the reliability and safety according to the operation of the automatic door 10.

 According to the present invention, the control means (40) performs a regenerative braking program with the algorithm set in the process of opening and closing the automatic door (10). The control means (40) controls the rotation and the generation of the motor (20) by an established algorithm in the process of opening and closing the automatic door (10). The regenerative braking program of the control means 40 is configured to be included in the overall algorithm relating to the operation of the automatic door 10.

At this time, the control means 40 includes an infrared sensor 41 for detecting approach of a passenger, a position sensor 42 for detecting the open position of the automatic door 10, A control section 48 which performs a motor drive section 46 in conjunction with the automatic door open / close subroutine and the regenerative braking subroutine and detects a low voltage of the battery 35, and a control section 48 which controls the regenerative braking voltage generated during braking of the motor 20 And a regenerative control unit (49) for detecting whether the battery is stored in the battery (35).

The infrared sensor 41 is installed on the upper side of the automatic door 10 to detect a state in which the passenger has entered a predetermined distance. The position sensor 42 can be used in combination with a hall sensor, a proximity sensor, an encoder, and the like, and detects the current position during the opening and closing stroke of the automatic door 10. On the other hand, the voltage sensing circuit in the control unit detects the state of the voltage of the battery 35. The motor driving unit 46 applies power to the motor 20 via the main SMPS 31 or the auxiliary SMPS 32 and the battery 35 and at the same time, by the inertia force of the automatic door 10 in the off state of the motor 20 And applies the generated power to the battery 35. The control unit 48 comprises a microcomputer circuit having a microprocessor, a memory, and an input / output interface. The automatic door opening and closing subroutine and the regenerative brake subroutine are mounted in the memory of the control unit 48. [ The regenerative control unit 49 detects a regenerative braking voltage generated when the motor 20 is braked and determines whether to store the regenerative braking voltage in the battery 35 or not.

On the other hand, the automatic door opening / closing subroutine performs braking for deceleration at a position set during the opening stroke of the automatic door 10 and performs braking for deceleration at a set position during the closing stroke of the automatic door 10. The present invention utilizes the torque of the regenerative braking during deceleration braking of the automatic door 10, but does not exclude a separate brake (not shown).

The regenerative brake subroutine of the control unit 48 stores the counter electromotive force energy of the motor 20 in the battery 35 during the deceleration of the automatic door 10 being opened or closed. As soon as the automatic door 10 reaches the set opening / closing position, the power to the motor 20 is turned off, and at the same time, the back electromotive force is generated in the motor 20 while the automatic door 10 is moved by the inertial force. The counter electromotive force of the motor 20 is stored as electric energy in the battery 35 via a separate charging circuit (not shown), and energy collected during a certain voltage is used as a power source.

5, a control unit 48 of the control unit 40 inputs a signal to the voltage sensing circuit in the control unit 48 at the start of the program (S10), and the charging of the battery 35 The battery 35 is operated as an operation power source and the main SMPS 31 is operated as the operation power source when the power of the battery 35 is not sufficient and the signal of the infrared sensor 41 is inputted in S20, When it is determined that the passenger is approaching, the opening of the automatic door 10 is started, the opening is terminated while regenerative braking is performed at the set opening position (S30), the automatic door 10 is closed again after a predetermined time, The flow advances to the detecting step S20 of the infrared sensor 41. If it is determined that there is no passenger approach, the closing is terminated while regenerative braking is performed at the set closing position (S40).

In addition, when the sensor input is not in standby for a certain period of time, the auxiliary SMPS 32 is used to operate the program in a low power mode in which the power of the entire system is greatly reduced.

The control unit 48 stops the regenerative brake subroutine and opens the automatic door 10 when it detects approach of the passenger in the deceleration process of the closed automatic door 10 according to the detailed configuration of the present invention. If it is determined in step S20 that the approach of the passenger is to be performed, the opening of the automatic door 10, the regenerative brake subroutine and the opening end (S30 ), And the automatic door 10 is started to be closed. This is a technical idea for enhancing the safety of the passenger in preference to electric energy saving by using the auxiliary SMPS 32 as a power supply for the standby time without the regenerative braking of the automatic door 10 and the sensor input.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. It is therefore intended that such variations and modifications fall within the scope of the appended claims.

10: Automatic door 11: Belt
20: motor 30: power source means
31: Main SMPS 32: Secondary SMPS
35: battery 40: control means
41: Infrared sensor 42: Position sensor
46: motor driving unit 48:
49: Regenerative control section

Claims (5)

An apparatus for opening and closing an automatic door (10), the apparatus comprising:
A motor (20) provided to provide opening and closing power of the automatic door (10);
A main SMPS 31 that generates and supplies operating power to drive the motor 20 and generates operating power by a commercial power supply, and a main SMPS 31 that generates operating power when there is no input from the constant-time sensors 41 and 42 Power supply means (30) having a secondary SMPS (32) and a battery (35) for generating an operating power when the battery voltage is above a certain voltage; And
An infrared sensor 41 for executing a program of regenerative braking with an algorithm set in the process of opening and closing the automatic door 10 and detecting approach of a passenger, a position sensor 42 for detecting the open position of the automatic door 10, A control unit 48 that performs a motor control unit 46 connected to the motor 20 to receive power and a control unit 48 that performs the automatic door open / close subroutine in conjunction with the regenerative brake subroutine and detects the low voltage of the battery 35, And a regeneration control unit (49) for detecting a regenerative braking voltage generated during braking of the battery (20) and determining whether to store the regenerative braking voltage in the battery (35)
The regenerative braking subroutine of the control unit 48 stores the back electromotive force energy of the motor 20 in the deceleration process of the automatic door 10 being opened and closed in the battery 35. In the deceleration process of the closed automatic door 10, Stops the regenerative brake subroutine and opens the automatic door (10). delete delete delete delete

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