JPH04109970U - Elevator car power supply device - Google Patents

Abstract

(57) [Summary] [Purpose] This invention relates to a method of supplying car power to an elevator car, and relates to a method of supplying car power to an elevator where it is difficult to install a tail cord. [Configuration] A storage battery 9 and a generator 8 are installed in the car 1.
The vertical movement causes the generator 8 to generate electricity, and the storage battery 9 is charged. [Effect] Tail cords are no longer required, increasing the operating efficiency of elevators for ultra-high-rise buildings.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a power supply device consumed by elevator cars, and eliminates the need for tail cords. The present invention relates to a power supply device for a car suitable for a stopped elevator.

0002

[Conventional technology]

Electricity consumed by an elevator car is normally controlled by a control installed in the elevator machine room. Either supply it with a tail cord (moving cable) from the control panel, or install a storage battery on the car. , when the car arrives at a specific floor such as the bottom floor, the contactor is placed in contact with the Normally, the storage battery is charged with a charger, and the battery is used to power the car. It was getting worse.

0003

[Problem that the idea aims to solve]

Among the conventional methods of power supply to the car mentioned above, power is supplied by the tail cord. The method is that when a building becomes a super high-rise building, the shaking of the building becomes large due to strong winds, etc. The probability of the tail cord getting caught on something installed inside the tower increases, increasing the probability of failure and stoppage. There was a problem.

0004 Another method is to install a storage battery on the car and charge it via a contact on the lowest floor. However, charging at the bottom floor takes a lot of time, which reduces the efficiency of elevator operation. There was a problem.

[0005] The purpose of this invention is to provide elevator car power suitable for elevators in ultra-high-rise buildings. The goal is to provide equipment.

[0006]

[Means to solve the problem]

This invention installs a storage battery and a generator in the car, and operates the generator by moving the car up and down. While the elevator is running, this generator charges the storage battery and reduces the electric power burden of the car. When the elevator stops, the energy stored in the storage battery that was charged while the elevator is running is used to supply electricity to the load. The electric power is released to cover the electric load of the car. If the downtime continues for a long time, such as during the night, When the battery is in use, a switch is installed to prevent the battery from discharging so that its energy is not wasted. Make sure to leave it open.

[0007]

[Effect]

Specifically, it rolls on the rails and rails that support the vertical movement of the elevator car. A guide roller that guides the car, and a rotary generator connected directly to the guide roller shaft. Electricity is generated by the rotational force of the guide rollers that rotate when the elevator car moves up and down. The machine is rotated, and the generated AC voltage is converted to DC using an AC/DC conversion bridge, and the storage battery is charged. Make it electric.

[0008] Also, the rotational force of the guide rollers becomes more slippery as the elevator speeds up. decrease. Therefore, for ultra-high-speed elevators, there is a straight line inside the tower from top to bottom. An alternating current magnet is installed, and a generator coil is installed on the car side so that they face each other without contact. The vertical movement of the coil generates a voltage in the coil, which is converted into direct current by the bridge. Another possible method is to charge the storage battery.

[0009] With this charging method, the elevator is charged only when it is running up and down, and it is In the time pause state, the storage battery continues to discharge, so there is no elevator operation request signal. A switch is also added to detect this and cut off the discharge circuit.

0010

【Example】

Examples of the present invention will be described below.

[0011] FIG. 1 shows an embodiment of the present invention, in which 1 shows the frame of an elevator car; 2 is the car, 3 is the anti-vibration rubber, 4 is the main rope that drives the car, 5 is the spring, 6 is the left and right Guide rail 7 is a guide roller 8 that guides the car 2 along the guide rail 6. 9 is a generator connected to the guide roller shaft, and 9 is a storage battery installed on the car. The storage battery 9 serves as a power source for lighting the car 2, driving the door motor, etc. It is equipped with a power supply for signals such as registration and signal transmission to the control panel based on the registration. The elevator system does not require a tail cord.

0012 FIG. 2 shows the storage battery charging circuit of the present invention, and 10 is the rotor of the generator 8. In this example, it consists of a two-pole permanent magnet. 11 is the stator winding of the generator 8 . 12 is a triangular bridge, 13 is a resistor, and 14 is a semiconductor switch.

[0013] The operation of FIGS. 1 and 2 of the present invention will be explained below. Hoisting machine in elevator machine room (Fig. (not shown), when the rope 4 goes up and down, the car frame 1 goes up and down, and accordingly. Then, the guide roller 7 rotates left and right. Along with this, it is directly connected to the guide roller shaft. The generator 8 rotates, the permanent magnet 10 shown in FIG. 2 rotates, and an AC voltage is applied to the winding 11. occurs. This voltage is converted to DC voltage by the three-phase bridge 12, and the charging resistor 13, the storage battery 9 is charged. The storage battery 9 does not receive charging from the generator 8. Meanwhile, the electric power necessary for the car is supplied via the semiconductor switch 14.

[0014] With this configuration, the storage battery will always need to be charged while the elevator is moving up and down. This eliminates inefficient operation such as long stops to charge storage batteries. In addition, when the elevator is stopped for a long time, such as at night, the generator Since the storage battery 9 does not rotate, the charge to the storage battery 9 is lost, but this state is detected and the semiconductor By turning off the switch 14, unnecessary discharge of the storage battery can be prevented. Next, when the elevator speeds up, the guide roller 7 will slip against the rail 6. It is possible. Figure 3 shows how to deal with this case, and shows how the elevator car should be handled. Most of the configuration is the same as Figure 1, so the description of the diagram is omitted, and only the parts that differ from Figure 1 are described. It is listed. 15 is a linear permanent magnet installed in the elevator tower, 16 is an induction coil mounted on the car frame 1 opposite to it. Car 1 moves up and down Then, an alternating voltage is generated in the induction coil 16. This voltage is the rotary generator shown in Figure 1. voltage, and the subsequent processing of the voltage (converting it to direct current and charging the storage battery) ) is exactly the same as the case in FIG.

[0015] In the example shown in Figure 3, since power is generated without contact, a highly reliable storage battery charging circuit is configured. can do.

[0016] In addition to non-contact power generation, we have also installed dedicated generator rotation rollers with high contact pressure. There are also ways to prevent slippage even at high speeds. Figure 4 shows an example. 20 is a synchronized board that moves up and down in synchronization with car frame 1, and 21 is a synchronized board that moves up and down in synchronization with car frame 1. It is a support rod that connects the frame 1, and is used to prevent the horizontal vibration of the synchronous board 20. It is an elastic support that does not transmit the vibration to 1. 22 is installed on the synchronization board 20. This is a roller with strong contact pressure, and a rotary generator is attached to the roller shaft. this With this configuration, the lateral vibration of the synchronous board 20 is not transmitted to the car frame 1, and the car can be moved smoothly. It can be driven up and down.

[0017]

[Effect of the idea]

This invention eliminates the need for tail cords and provides highly reliable air conditioners for ultra-high-rise buildings. A elevator can be realized. Also, while driving, the storage battery is constantly being charged, so This has the advantage of eliminating downtime due to charging the elevator.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of an embodiment of the present invention.

FIG. 2 is an electrical circuit diagram of the present invention.

FIG. 3 is an explanatory diagram of a second embodiment of the present invention.

FIG. 4 is an explanatory diagram of a third embodiment of the present invention.

[Explanation of symbols]

1... Frame, 2... Basket, 3... Anti-vibration rubber, 4... Main rope, 5
... Spring, 6... Guide rail, 7... Guide roller, 8... Generator, 9... Storage battery.

Claims (6)

[Scope of utility model registration request] Claim 1: An elevator in which a storage battery is mounted on a car and electric power is supplied from the storage battery, wherein a generator is mounted on the car, the generator is operated by the vertical movement of the car, and the generated voltage is An elevator car power supply device characterized in that the storage battery is charged by: 2. The elevator car power supply device according to claim 1, wherein the generator is driven by guide rollers of the car. 3. The elevator car power supply device according to claim 1, wherein the generator is driven by a friction drive roller with a guide rail provided in the car. 4. In claim 1, the generator provided in the car is an elevator car power supply system that generates voltage through induction between a magnet installed inside the tower of the elevator and a coil on the car side. Device. 5. The elevator car power supply device according to claim 1, further comprising a switch that cuts off discharge of the storage battery when the elevator is stopped for a long time. 6. The elevator car power supply device according to claim 1, wherein a rotary generator is attached to a structure that moves in synchronization with the vertical movement of the car.