CN109279485A

CN109279485A - Control method for the braking of the power loss of escalator and moving sidewalk

Info

Publication number: CN109279485A
Application number: CN201811243724.3A
Authority: CN
Inventors: 祝小牛; 祝祯丞; 杨艺忱
Original assignee: Suzhou Weibeco Power Technology Co Ltd
Current assignee: Suzhou Weibeco Power Technology Co Ltd
Priority date: 2018-10-24
Filing date: 2018-10-24
Publication date: 2019-01-29

Abstract

The present invention provides a kind of control methods for the braking of the power loss of escalator and moving sidewalk, include the following steps: that 1) controller input terminal access power grid AC220V, the starting voltage that output end generates DC198V immediately make brake enter actuation working condition brake power supply；2) for controller input terminal in access AC220V voltage and after output end generates DC198V voltage 1s ± 0.2s, output end automatically switches to the holding voltage of DC5V~DC10V, and brake is in energization always and is attracted working condition in this handoff procedure；3) in controller input terminal power loss, output end can maintain the holding voltage of 3s~5s, make brake still in the working condition being attracted that is powered, and 3s~5s rear brake power loss is braked；Using this method carry out braking have continue working energy consumption it is low, brake steady feature.

Description

Control method for the braking of the power loss of escalator and moving sidewalk

Technical field

The present invention relates to a kind of power loss braking methods for escalator and moving sidewalk.

Background technique

Escalator or moving sidewalk have the superiority of continuous rapid evacuation major pedestrian movement, thus are widely used in electricity The crowded public place such as movie theatre, market, bus stop.But when shutting off power in emergency, brake is acted just At once it carries out, at this time due to the inertia factor of elevator operation, the pedestrian on elevator has the risk fallen down, and damages even more Serious accident is added to occur, there are security risks.And existing brake guaranties water holdup is 100%, control brake is kept When (maintenance) works, holding (maintenance) voltage is DC198V or DC110V, is in high pressure energized state for a long time, power is big, energy Consumption is just big.

Summary of the invention

Present invention aim to address the above the deficiencies in the prior art, provide a kind of for escalator and moving sidewalk The braking method of power loss, with continuing working, energy consumption is low, brakes steady feature.

A kind of control method braked for escalator and moving sidewalk power loss, includes the following steps:

1) controller input terminal accesses power grid AC220V, and the starting voltage that output end generates DC198V immediately supplies brake Electricity makes brake enter the working condition of actuation；

2) controller input terminal is in access AC220V voltage and after output end generates DC198V voltage 1s ± 0.2s, output End automatically switches to the holding voltage of DC5V~DC10V, and brake is in the work for being powered and being attracted always in this handoff procedure State；

3) in controller input terminal power loss, output end can maintain the holding voltage of 3s~5s, make brake still in logical The working condition that electricity is attracted, 3s~5s rear brake power loss are braked.

Preferably, the holding voltage that controller output end automatically switches to DC5V~DC10V is depressured electricity using BUCK Road.

Preferably, output end can maintain the holding voltage of 3s~5s using RC retardation ratio circuit.

Preferably, emergency switch is provided between controller output end and brake input terminal.

The utility model has the advantages that

Under the premise of resistance is identical, power is original 1/33 or 1/18.3, and similarly energy consumption is with regard to corresponding small, once Grid cut-off, in 3s~5s time (referred to as delay time), controller output end still has holding (maintenance) DC5V~DC10V Voltage, brake be also in have electricity supply normal operating conditions, after input terminal power loss in the timing node of 3s~5s, electricity The inertia of ladder will gradually weaken, and when the speed of service will tend to be steady, brake brakes elevator at this time, so that it may so that electricity Terraced steady effective stopping, it is ensured that ascending for elevator people leaves safely, has prevented security risk with regard to this.

Detailed description of the invention

Fig. 1 is control method timing diagram；

Fig. 2 is control block wiring diagram.

A. controller input terminal；B. controller output end；1. No.1 connection jaws；2. No. two connection jaws；

3. No. three connection jaws；4. No. four connection jaws；5. No. five connection jaws；6. No. six connection jaws；

7. No. seven connection jaws；K. emergency switch.

Specific embodiment

In order to deepen the understanding of the present invention, below in conjunction with embodiment and attached drawing, the invention will be further described, should The examples are only for explaining the invention, is not intended to limit the scope of the present invention..

As shown in Fig. 1 control method timing diagram, the end A is controller input terminal, and the end B is controller output end, and the longitudinal axis represents Voltage change, horizontal axis represent the time, and controller input terminal and output end start all as 0V.

1) controller input terminal A accesses power grid AC220V, and output end B generates the starting voltage of DC198 to brake immediately Power supply makes brake enter actuation working condition；

2) controller input terminal A is after accessing AC220V voltage 1s ± 0.2s, output end B automatically switch to DC5V~ The holding voltage of DC10V, brake is in attracting state always in this handoff procedure；

3) in controller input terminal A power loss, output end B can maintain the holding voltage of 3s~5s, 3s~5s rear brake Power loss is braked.

Preferably, the holding voltage that controller output end A automatically switches to DC5V~DC10V is depressured electricity using BUCK Road.

Preferably, output end B can maintain the holding voltage of 3s~5s using RC retardation ratio circuit.

Preferably, it is provided with emergency switch between controller output end and brake input terminal, when staircase host transmission chain It takes a turn for the worse when item disconnection, staircase uplink or the foundation brakes of staircase step after powering off 3s still in the running, can pass through this Switch carries out emergency braking.

In the present embodiment, the wiring of controller is as shown in Fig. 2, No.1 connection jaws ground connection 1, No. two connection jaws 2 and No. three Connection jaws 3 get access to grid AC220V, and No. four connection jaws 4 and No. five connection jaws 5 connect additional brake, and No. six connection jaws 6 and No. seven connect Line mouth 7 connects monitoring circuit.

When output terminals A accesses power grid AC220V, the starting voltage that output end B generates DC198V immediately supplies brake Electricity, the holding voltage that output voltage is depressurized to DC5V~DC10V through the effect of BUCK reduction voltage circuit after 1s ± 0.2s are braked The continued power of device, after input terminal A power-off, output end B maintains the guarantor of output end 3s~5s under the action of RC retardation ratio circuit It holds voltage and then just powers off, carry out delay braking；And it takes a turn for the worse or helps when the disconnection of staircase host driving chain, staircase uplink The foundation brakes of ladder step after powering off 3s is still operating, then can be powered off by emergency switch K to brake, to make elevator It brakes immediately.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims

1. a kind of control method for the braking of the power loss of escalator and moving sidewalk, it is characterised in that: including walking as follows It is rapid:

1) controller input terminal accesses power grid AC220V, and the starting voltage that output end generates DC198V immediately makes brake power supply Brake enters actuation working condition；

2) controller input terminal is in access AC220V voltage and after output end generates DC198V voltage 1s ± 0.2s, and output end is certainly The dynamic holding voltage for switching to DC5V~DC10V, brake is in energization always and is attracted working condition in this handoff procedure；

3) in controller input terminal power loss, output end can maintain the holding voltage of 3s~5s, inhale brake still in being powered The working condition of conjunction, 3s~5s rear brake power loss, is braked.

2. a kind of controlling party of controller for the braking of the power loss of escalator and moving sidewalk as described in claim 1 Method, it is characterised in that: the holding voltage that controller output end automatically switches to DC5V~DC10V is depressured electricity using BUCK Road.

3. a kind of controlling party of controller for the braking of the power loss of escalator and moving sidewalk as described in claim 1 Method, it is characterised in that: output end can maintain the holding voltage of 3s~5s using RC retardation ratio circuit.

4. a kind of controlling party of controller for the braking of the power loss of escalator and moving sidewalk as described in claim 1 Method, it is characterised in that: be provided with emergency switch between controller output end and brake input terminal.