JP2001072348A - Linear motor elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with a machinery room by eliminating a control board installation space of a linear motor elevator. SOLUTION: In this linear motor elevator having a cylindrical linear motor 3 and a brake 5 provided in a balancing weight 2, an inverter for driving the linear motor is provided in the balancing weight 2, and a DC power supply of the inverter is shared, and a control device 51 of the brake 5 and a control and driving device 41 for a door motor of a car 1 are provided in the balancing weight 2. A host controller 6 is provided on the upper part of the car. Thus, the elevator dispenses with a control board space.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear motor elevator using a linear motor as a drive source.

[0002]

2. Description of the Related Art In a conventional rope type elevator, a hoist and a drive / control device for the hoist are installed in a machine room at the top of a hoistway. It is desirable that the machine room not be provided because the height of the building is restricted, etc., since the degree of freedom in architectural design increases. Therefore, various linear elevators using a linear motor as a drive source have been proposed for the purpose of eliminating a machine room.

FIG. 3 shows an example of a linear motor elevator. This elevator system has a cylindrical linear motor 3
Is used as a drive motor, and the primary side 3P is built in the counterweight 2 to be a movable element, and the secondary side (column) 3S serving as a stator is suspended over the entire length of the hoistway. Since the balancing weight 2 and the car 1 are connected by a rope 12 and suspended by an overhead sheave 11, the balancing weight 2 by the linear motor 3 is used.
The car 1 can be moved up and down by the direct drive of.

[0004] In this elevator system, the linear motor primary side 3P is built in the counterweight and basically does not require a reduction gear or other driving device, so that a machine room for a hoist is not required. Improved system efficiency and reliability, as well as lower noise,
It has various excellent features.

[0005]

In the above-described linear elevator system, since a hoist is not required, a machine room above the hoistway is omitted. However, driving a linear motor
An inverter device for controlling and a higher-order controller are housed in a control panel, and this control panel is installed in a space in a building near a hoistway. Therefore, when designing a building, it is necessary to secure a space for installing the control panel.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a linear motor elevator that does not require a control panel installation space.

[0007]

According to the present invention, there is provided a linear motor elevator in which a rider and a counterweight are connected by a rope, suspended in a hanging manner on an overhead sheave, and a linear motor for driving is mounted on the counterweight. On the car, a host controller and a door motor for opening and closing the door of the car are installed. On the counterweight, an inverter device for driving the linear motor, a brake, a control device for the brake, and a control / drive for the door motor. An apparatus is installed, and DC power required for the brake control device and the door motor control / drive device is supplied from the DC power source of the linear motor drive inverter device.

Alternatively, a host controller is installed in the hall, a door motor for opening and closing the door of the car is installed on the car, and an inverter device for driving the linear motor, a brake, and a brake are mounted on the counterweight. A DC power supply required for the brake control device and the door motor control / drive device is supplied from the DC power supply for the linear motor drive inverter device. .

[0009] Alternatively, a host controller and a door motor for opening and closing the door of the car and a control / drive device for the door motor are installed on the car, and the balancing weight is provided with an inverter device for driving the linear motor, and a brake. And a DC power supply for the brake control device and a door motor control / drive device is supplied from the DC power source of the linear motor drive inverter device.

[0010] Alternatively, a host controller is installed in the hall, a door motor for opening and closing the door of the car and a door motor control / drive device are installed on the car, and a linear motor driving inverter device is provided on the counterweight. And a brake and a control device for the brake are installed, and DC power required for the control device for the brake and the control / drive device for the door motor is supplied from the DC power source for the inverter device for driving the linear motor.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Embodiment 1 of the present invention will be described with reference to FIGS. FIG. 1 shows an elevator system configuration, and FIG. 2 shows a main circuit configuration of a linear motor drive inverter device, a brake control device, and a door motor control / drive device.

Referring to FIG. 1, the car 1 and the counterweight 2 are connected by a rope 12 and a beam 18 at the top of the hoistway.
And is movably provided in a vertical manner along guide rails 13 and 14.

The driving linear motor 3 has a cylindrical shape on the primary side 3P, and is built in the center of the counterweight so that the center line is vertical. Linear motor 3
The secondary side (column) 3S is formed in a pipe shape,
It is suspended over the entire length of the hoistway so as to pass through the primary side 3P. The brake 5 is provided on both lower sides of the frame 21 of the counterweight 2 so that the brake works on the guide rail 14 for the counterweight.

Referring to FIG. 2, the linear motor 3 is a voltage type 3
It is driven by the phase inverter device 31. The door motor 4 for the car door mounted on the car 1 is controlled by a control / drive unit 41 having a voltage-type three-phase inverter configuration. Also,
The brake 5 applies a PWM voltage to the brake coil 5C.
It is controlled by a control device 51 having a chopper configuration to be controlled.

An inverter device 31 for driving a linear motor includes a DC power supply unit 32 and an inverter unit 3 using the DC power supply.
The DC power supply unit 32 includes a converter 33 for converting three-phase AC of a main power supply into DC and a smoothing capacitor C. The power for the door motor control / drive device 41 and the brake control device 51 is obtained from the DC power supply unit 32 of the linear motor drive inverter device 31.

Referring to FIG. 1, a linear motor drive inverter device 31, a door motor control / drive device 41, and a brake control device 51 are provided on the right side of the counterweight 2 in the frame 21. The smoothing capacitor C of the device 31 is provided. The host controller (operation control panel) 6 is mounted on the car 1. The maintenance tool interface 73 is installed below the car call button 72 on the hall (fixed floor) side. The weight of the counterweight 2 is the weight piece 22
It is adjusted by the quantity of.

The configuration of the above embodiment is shown below.

・ Installed in hall (1) Interface of maintenance tool ・ Installed on car (2) Host controller (3) Motor for door ・ Installed on counterweight (4) Linear motor (5) Inverter device for driving linear motor (6) Brake (7) Control device for brake (8) Control / drive device for door motor With the above configuration, each device conventionally housed in the machine room can be installed in the hoistway, and the elevator without the machine room The system has been realized.

Further, the DC power required for the brake control device 51 and the door motor control / drive device 41 is supplied from the DC power supply section 32 of the linear motor drive inverter device 31. The DC power supply of the provided devices 41 and 51 is omitted, and the devices 41 and 5 are omitted.
Mounting on one counterweight has become easier.

Further, since the brake control device 51 has a PWM control chopper configuration, a large noise is generated when the brake is released by arbitrarily controlling the current with the brake coil 5C by the voltage controlled by the PWM control. Can be prevented. Unlike the conventional elevator system, all the devices are installed in the hoistway, so the noise generated by each device is a serious problem. This is because the noise in the hoistway easily propagates directly into the car or the living room facing the hoistway.

Embodiment 2 Embodiment 2 is different from Embodiment 1 in that the upper controller 6 mounted on the car 1 is installed on the hall side (for example, above the car call button 72). is there.

The configuration of the second embodiment will be described below.

-Installed in the hall (1) Interface for maintenance tools (2) Host controller-Installed in car (3) Motor for door-Installed on counterweight (4) Linear motor (5) Inverter device for driving linear motor (6) Brake (7) Brake control device (8) Door motor control / drive device The second embodiment has an advantage that maintenance is easy because the host controller is installed in the hall.

Third Embodiment In a third embodiment, the control / drive device 41 for the door motor mounted on the counterweight 2 in the first embodiment is a car 1
It is a point that is mounted on.

The structure of the third embodiment will be described below.

・ Installation in hall (1) Interface of maintenance tools ・ Installed on car (2) Host controller (3) Door motor (8) Door motor control / drive device ・ Installed on counterweight (4) Linear Motor (5) Inverter device for driving linear motor (6) Brake (7) Control device for brake According to the third embodiment, control / drive device 4 for door motor
1 is mounted on the car 1, so that the distance between the door motor control / drive device 41 and the door motor 4 is short, so that the wiring length is short and the surge voltage generated between the terminals of the door motor 4 is small. This is advantageous in that it can be held down.

Embodiment 4 Embodiment 4 is different from Embodiment 2 in that the door motor control / drive device 41 mounted on the counterweight 2 is mounted on the car 1 in the same manner as in Embodiment 3. is there.

The configuration of the fourth embodiment will be described below.

・ Installation in hall (1) Maintenance tool interface (2) Host controller ・ Installed in car (3) Door motor (8) Door motor control / drive device ・ Installed in counterweight (4) Linear motor (5) Inverter device for linear motor drive (6) Brake (7) Brake control device

[0030]

Since the present invention is configured as described above, the following effects can be obtained. (1) Since the DC power required for the brake control device and the door motor control / drive device is supplied from the DC power source of the linear motor drive inverter device, the rectifier circuit of the brake control device and the door motor control / drive device is provided. Can be omitted. (2) For this reason, it is easy to mount the brake control device on the counterweight, and to mount the door motor control / drive device on the counterweight or on the car, and a true machine room-less linear motor elevator system. Is easy to construct.

[Brief description of the drawings]

FIG. 1 is a configuration explanatory diagram of an elevator system according to a first embodiment.

FIG. 2 is a main circuit connection diagram of a linear motor drive inverter device, a door motor control / drive device, and a brake control device according to the embodiment;

FIG. 3 is a configuration explanatory view of an elevator system according to a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Riding car 2 ... Balance weight 3 ... Cylindrical linear motor 3P ... Linear motor primary side 3S ... Linear motor secondary side (column) 4 ... Door motor 5 ... Brake 6 ... Host controller 11 ... Overhead sheave 12 ... Rope 13, 14 ... guide rail 15 ... power cable 16, 17 ... buffer 21 ... frame of counterweight 22 ... weight piece 31 ... inverter device for linear motor drive 41 ... control and drive device for door motor 51 ... control device for brake 61 ... power supply Panel 71: First floor door 72: Car call button 73: Maintenance tool interface

Continued on the front page (72) Inventor ▲ Taka ▼ Junichi Yama 2F, 1-17-1 Osaki, Shinagawa-ku, Tokyo F-term in Meidensha Co., Ltd. 3F002 EB10 GA00 GA03 GB03 3F301 BA16

Claims (4)

[Claims] 1. A linear motor elevator in which a car and a counterweight are connected by a rope and suspended in a hanging manner on an overhead sheave, and a linear motor for driving is mounted on the counterweight. A door motor for opening and closing the door of the car is installed, and an inverter device for driving the linear motor, a brake, a control device for the brake, and a control / drive device for the door motor are installed on the counterweight, and A linear motor elevator, wherein DC power required for a control device and a door motor control / drive device is supplied from the DC power source of the linear motor drive inverter device. 2. A linear motor elevator in which a rider and a counterweight are connected by a rope and suspended by an overhead sheave in a hanging manner, and a linear motor elevator having a drive linear motor mounted on the counterweight is provided with a host controller in a hall. On the car, install a door motor that opens and closes the door of the car, and on the counterweight, install an inverter device for driving the linear motor, a brake, a control device for the brake, and a control and drive device for the door motor, The brake control device and the door motor control
A linear motor elevator, wherein DC power required for a driving device is supplied from a DC power source of the inverter device for driving a linear motor. 3. A linear motor elevator in which a rider and a counterweight are connected by a rope and are suspended from an overhead sheave in a hanging manner, and a linear motor for driving is mounted on the counterweight. A door motor for opening and closing the door of the car and a control / drive device for the door motor are installed. On the counterweight, an inverter device for driving the linear motor, a brake, and a brake control device are installed, and the control of the brake is performed. A linear motor elevator characterized in that DC power required for the device and the door motor control / drive device is supplied from the DC power source of the linear motor drive inverter device. 4. A linear motor elevator in which a rider and a counterweight are connected by a rope and suspended by an overhead sheave in a hanging manner and a linear motor for driving is mounted on the counterweight. On the car, a door motor that opens and closes the car door and a control and drive device for the door motor are installed.
An inverter device for driving the linear motor, a brake, and a brake control device are installed on the counterweight, and the DC power supply required for the brake control device and the door motor control / drive device is supplied to the linear motor drive inverter. A linear motor elevator characterized by being supplied from the DC power supply of the device.