JPS59190769U

JPS59190769U - Elevator emergency stop device

Info

Publication number: JPS59190769U
Application number: JP8601583U
Authority: JP
Inventors: 憲司坂本
Original assignee: 三菱電機株式会社
Priority date: 1983-06-06
Filing date: 1983-06-06
Publication date: 1984-12-18

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のエレベータの非常停止装置においける電
磁ブレーキコントロール回路の回路図、第２図はこの考
案のエレベータの非常停止装置における電磁ブレーキコ
ントロール回路の一実施例゛　　　を示す回路図、第３
図は電磁ブレーキの励磁電流とブレーキトルクの関係を
示す特性図、第４図は同上電磁ブレーキコントロール回
路および従来の電磁ブレーキコントロール回路における
非常停止の際のエレベータの減速特性を示す特性図、第
５図はこの考案のエレベータの非常停止装置における電
磁ブレーキコントロール回路の他の実施例の回路図であ
る。１　、１２ａ、　　１２ｂ−・・励磁コイル、２，８゜
１１ａ、　　１　ｌｂ−・・リレーノ接点、３，１５．
１６・・・放電用抵抗、４・・・無停電電源装置、５．
１４・・・抵抗、６・・・速度検出器、７・・・速度発
電機、８・・・リレー、９・・・直流発電機またはサイ
リスタレオナード装置、１０・・・エレベータの駆動用
直流モータ、１３２〜１３ｄ・・・ダイオード。なお、
図中同一符号は同一または相当部分を示す。第３図第５図Fig. 1 is a circuit diagram of an electromagnetic brake control circuit in a conventional elevator emergency stop device, and Fig. 2 is a circuit diagram showing an embodiment of an electromagnetic brake control circuit in an elevator emergency stop device of this invention. 3
The figure is a characteristic diagram showing the relationship between the excitation current of the electromagnetic brake and the brake torque. Figure 4 is a characteristic diagram showing the deceleration characteristics of the elevator during an emergency stop in the electromagnetic brake control circuit and the conventional electromagnetic brake control circuit. The figure is a circuit diagram of another embodiment of the electromagnetic brake control circuit in the elevator emergency stop device of this invention. 1, 12a, 12b--Exciting coil, 2,8° 11a, 1 lb--Relay contact, 3,15.
16... Discharge resistor, 4... Uninterruptible power supply, 5.
14...Resistor, 6...Speed detector, 7...Speed generator, 8...Relay, 9...DC generator or thyristor Leonard device, 10...DC motor for driving elevator , 132-13d...diode. In addition,
The same reference numerals in the figures indicate the same or corresponding parts. Figure 3 Figure 5

Claims

[Scope of utility model registration request]

In an elevator emergency stop device that uses an electromagnetic brake to perform braking in the event of an emergency stop or power outage while a traction-type elevator is running, the electromagnetic brake is not controlled immediately after an emergency stop or power outage while the car is running at high speed. An emergency stop device for an elevator characterized by being equipped with an electromagnetic brake control circuit that controls the power to be weak and to exert the full braking force only when the car reaches a low speed.