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Elevator emergency lighting system and working method thereof

A technology of emergency lighting and working methods, which is applied to elevators, electrical components, elevators, etc. in buildings, and can solve the problems of being unable to see the car clearly, exacerbating the panic mental state of trapped people, and difficult to meet the requirements for safe operation of elevators, etc. , to achieve the effect of avoiding public panic and humanizing the activation conditions

Inactive Publication Date: 2020-06-26
淄博东升电梯工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The start-up condition of the emergency light source is single, and it is difficult to meet the requirements of safe operation of the elevator
[0004] The failure of the car lighting source, that is, the lighting lamp is damaged or its illuminance is reduced, which cannot meet the provisions of Article 8.17.1 and 8.17.3 of GB 7588-2003, which is also the most common lighting failure
At present, the emergency lighting system of the elevator has not taken measures to deal with this fault, which makes people unable to see clearly the situation inside the car when taking the elevator, and cannot conveniently register the signals inside the car, which may easily cause passengers to panic and risk of collision
[0005] 2. The existing conventional emergency lighting power supply cannot determine whether the battery power can maintain the emergency light working for more than 1 hour. When the working time is less than 1 hour, it cannot meet the provisions of Article 8.17.4 of GB 7588-2003
In the daily maintenance process, when checking the emergency lighting of the car, it is generally to disconnect the power supply of the normal car lighting to verify the function of the emergency lighting. It is impossible to verify the working time of the emergency lighting. and other failures, the emergency lighting power supply cannot maintain a certain working time of the emergency lights, which will aggravate the panic state of the trapped people
[0006] 3. When the emergency power supply fails, it is difficult for maintenance personnel to determine whether the emergency power supply charging circuit is faulty or the rechargeable battery is faulty
This patent document only solves the detection technology of whether the emergency light source is in normal working state

Method used

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  • Elevator emergency lighting system and working method thereof
  • Elevator emergency lighting system and working method thereof
  • Elevator emergency lighting system and working method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] In this embodiment, the main power supply of the elevator car is 220VAC to 12.6V, which is used to provide power for the LED lighting (main light source, backup light source; 18W); the emergency lighting circuit battery is designed with a 12.6V lithium battery, and the power of the emergency light It is 3W (5730LED); the battery power of the emergency power supply (80% of the power) can be used for the continuous working time of the emergency light for ≥ 2 hours. Such as Figure 11In the power supply circuit shown, since the voltage of the lithium battery is DC12.6V, and the operating voltage required by the single-chip microcomputer is DC5V, it is necessary to step down the DC12.6V to DC5V to supply power to the single-chip microcomputer. U4 / 78M05 is a 5V voltage regulator chip, which can reduce the DC12.6V voltage to DC5V to supply power to the microcontroller and other peripherals. C4-C8 are power filter capacitors to ensure stable power supply.

[0075] In this emb...

Embodiment 2

[0110] The elevator emergency lighting system described in Embodiment 1 also includes an energy-saving circuit module, and the energy-saving circuit module includes: an elevator running signal detection circuit, a delay adjustment circuit and a relay control circuit;

[0111] If the elevator running signal detection circuit does not detect the elevator running signal, after the delay time set in the delay adjustment circuit, the control chip sends an instruction to drive the normally closed point of the relay in the relay control circuit to disconnect and turn off the car lighting. When the car stops on the landing and the power-driven automatic door is closed, if there is no running command in the elevator car, after a certain time delay, the car lighting will be turned off to achieve the purpose of energy saving.

[0112] Such as Figure 7 As shown, in the elevator running signal detection circuit, P2 is the elevator running signal input interface, the optocoupler is isolate...

Embodiment 3

[0116]A kind of working method of elevator emergency lighting system as described in embodiment 1, comprises the brightness detection method in the car:

[0117] When the lighting source in the car fails and the illuminance of the light source is ≤50lx, start the backup light source (non-emergency lighting source, its power source is the same as the main light source), and sound an alarm to prompt personnel to replace the main light source.

[0118] The working method also includes a mains power failure detection method:

[0119] Automatically start the emergency lighting circuit, and the emergency lights are lit;

[0120] When detecting that the mains power is normal and the car illumination detection circuit detects that the car lighting is normal, but the control chip detects that the AIN3 voltage is 0V, the status indicator D45 mains power-off indicator light is on at this time, and it is determined that the battery The charging circuit is faulty.

[0121] The working me...

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Abstract

An elevator emergency lighting system comprises a control chip, a lift car lighting source fault detection circuit module, a mains supply power failure detection circuit and a battery voltage and battery charging detection circuit. The lift car lighting source fault detection circuit module at least comprises an LED lighting lamp constant-current drive circuit and a lift car illumination detectioncircuit, and the lift car illumination detection circuit is used for collecting the illumination in a lift car, converting the illumination into an illumination signal which can be recognized by thecontrol chip, and judging whether a standby LED light source is started by driving the LED illuminating lamp constant-current driving circuit or not according to the collected illumination intensity.Aiming at the fault of a lift car lighting source, the standby light source can still be automatically started through the system, and alarm processing is carried out. According to the present invention, the problem that the working time of emergency lighting cannot be verified during existing maintenance can be effectively solved, the fault type of an emergency power supply can be automatically identified, the overall emergency power supply replacement cost is greatly saved, the maintenance efficiency is improved, and the energy conservation and environmental protection are achieved.

Description

technical field [0001] The invention discloses an elevator emergency lighting system and a working method thereof, belonging to the technical field of elevator emergency lighting systems. Background technique [0002] With the improvement of public safety awareness, the safety supervision of elevators is becoming more and more strict, and the application range of elevators is increasing. Therefore, higher technical requirements are also put forward for maintenance. In the existing elevator emergency lighting system The following technical issues exist: [0003] 1. The start-up condition of the emergency light source is single, and it is difficult to meet the requirements of safe operation of the elevator [0004] The failure of the car lighting source, that is, the damage of the lighting lamp or the reduction of its illuminance, cannot meet the provisions of Article 8.17.1 and Article 8.17.3 of GB 7588-2003, which is also the most common lighting failure. At present, the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B45/345B66B11/02B66B5/00
CPCB66B5/0018B66B11/0233Y02B20/30Y02B20/40
Inventor 郭贝郭涛陈洁陈全彬
Owner 淄博东升电梯工程有限公司
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