Passenger conveyor system and starting/stopping control method thereof

Patent metadata

Field	Value
Publication number	US-10399824-B2
Application number	US-201815867349-A
Country	US
Kind code	B2
Filing date	Jan 10, 2018
Priority date	Jan 11, 2017
Publication date	Sep 3, 2019
Grant date	Sep 3, 2019

Abstract

A passenger transportation system and a startup and shutdown control method thereof, wherein the passenger transportation system comprises: a plurality of series-connected passenger transportation devices; an electrical control system comprising a plurality of startup and shutdown circuits which are respectively used for controlling startup and shutdown of each of the passenger transportation devices; and an electrical interlocking assembly coupled between each of the startup and shutdown circuits, wherein the electrical interlocking assembly controls a startup and shutdown sequence of a low-position passenger transportation device and a high-position passenger transportation device by controlling closing and opening of each of the startup and shutdown circuits.

First claim

What is claimed is:

1. A passenger transportation system, wherein, the passenger transportation system comprises:
a plurality of series-connected passenger transportation devices, the plurality of series-connected passenger transportation devices comprising a first passenger transportation device and a second passenger transportation device configured to convey passengers in a serial manner;
an electrical control system comprising a plurality of startup and shutdown circuits which are respectively used for controlling startup and shutdown of each of the passenger transportation devices; and
an electrical interlocking assembly coupled between each of the startup and shutdown circuits,
wherein the electrical interlocking assembly controls a startup and shutdown sequence of the first passenger transportation device and the second passenger transportation device by controlling closing and opening of each of the startup and shutdown circuits;
wherein the electrical interlocking assembly is configured to perform at least one of (i) prior to enabling movement of the first passenger transportation device in a direction, the electrical interlocking assembly disables movement of the second passenger transportation device in the direction and (ii) after disabling movement of the first passenger transportation device in a direction, the electrical interlocking assembly disables movement of the second passenger transportation device in the direction.

2. The passenger transportation system according to claim 1 , wherein, each of the startup and shutdown circuits comprises a power supply branch with a main contactor, an upward movement branch, a downward movement branch and a changeover switch, wherein the changeover switch optionally connects the power supply branch with the upward movement branch or connects the power supply branch with the downward movement branch.

3. The passenger transportation system according to claim 2 , wherein, when the second passenger transportation device enables the upward movement branch, the main contactor of the second passenger transportation device turns on the power supply branch of the second passenger transportation device; and/or when the first passenger transportation device enables the downward movement branch, the main contactor of the first passenger transportation device turns on the power supply branch of the first passenger transportation device.

4. The passenger transportation system according to claim 2 , wherein, the passenger transportation system further comprises a self-locking branch directly connected into an upward movement circuit and a downward movement circuit from a power supply branch.

5. The passenger transportation system according to claim 1 , wherein, the electrical control system further comprises an inspection circuit connected in parallel with the startup and shutdown circuit, and an inspection switch is provided on the inspection circuit; and when the inspection switch is closed, the inspection circuit is capable of bypassing the startup and shutdown circuit.

6. The passenger transportation system according to claim 1 , wherein, when the number of the series-connected passenger transportation devices is two, an electrical control box for accommodating the electrical control system is arranged in a joint area between the two passenger transportation devices.

7. The passenger transportation system according to claim 1 , wherein, the startup and shutdown circuit is supplied with power through a safety chain circuit of a corresponding passenger transportation device.

8. The passenger transportation system according to claim 1 , wherein, the passenger transportation devices comprise escalators and/or moving walks.

9. A passenger transportation system, wherein, the passenger transportation system comprises:
a plurality of series-connected passenger transportation devices, the plurality of series-connected passenger transportation devices comprising a first passenger transportation device and a second passenger transportation device configured to convey passengers in a serial manner;
an electrical control system comprising a plurality of startup and shutdown circuits which are respectively used for controlling startup and shutdown of each of the passenger transportation devices; and
an electrical interlocking assembly coupled between each of the startup and shutdown circuits,
wherein the electrical interlocking assembly controls a startup and shutdown sequence of the first passenger transportation device and the second passenger transportation device by controlling closing and opening of each of the startup and shutdown circuits;
wherein, each of the startup and shutdown circuits comprises a power supply branch with a main contactor, an upward movement branch, a downward movement branch and a changeover switch, wherein the changeover switch optionally connects the power supply branch with the upward movement branch or connects the power supply branch with the downward movement branch;
wherein, the electrical interlocking assembly comprises a plurality of auxiliary contactors corresponding to the plurality of series-connected passenger transportation devices, and each of the auxiliary contactor comprises a plurality of contacts in the same turned-on or turned-off state, wherein a first contact of the auxiliary contactor of the first passenger transportation device is connected into the downward movement branch of the second passenger transportation device; and a first contact of the auxiliary contactor of the second passenger transportation device is connected into the upward movement branch of the first passenger transportation device.

10. The passenger transportation system according to claim 9 , wherein, before the second passenger transportation device enables the upward movement branch, the auxiliary contactor of the second passenger transportation device turns off the upward movement branch of the first passenger transportation device; and/or before the first passenger transportation device enables the downward movement branch, the auxiliary contactor of the first passenger transportation device turns off the downward movement branch of the second passenger transportation device.

11. The passenger transportation system according to claim 9 , wherein, a second contact of the auxiliary contactor of the second passenger transportation device is connected into the power supply branch of the first passenger transportation device; and a second contact of the auxiliary contactor of the first passenger transportation device is connected into the power supply branch of the second passenger transportation device.

12. The passenger transportation system according to claim 11 , wherein, after the second passenger transportation device disables the upward movement branch, the auxiliary contactor of the second passenger transportation device turns off the power supply branch of the first passenger transportation device; and/or after the first passenger transportation device disables the downward movement branch, the auxiliary contactor of the first passenger transportation device turns off the power supply branch of the second passenger transportation device.

13. The passenger transportation system according to claim 11 , wherein, the second contact and the main contactor are arranged in parallel.

14. The passenger transportation system according to claim 13 , wherein, when no power is supplied, the main contactor and the auxiliary contactor are in opposite turned-on and turned-off states.

15. The passenger transportation system according to claim 14 , wherein, the main contactor is a n

Assignees

• Otis Elevator Co

Inventors

• Le Jiyao
• Wang Longwen

Classifications

• B66B25/00

  Control of escalators or moving walkways (walkways of variable speed type B66B21/12; handrails of variable speed type B66B23/26; of general application G05) · CPC title

• B66B21/10

  Moving walkways · CPC title

• B66B21/02 Primary

  Escalators · CPC title

• B66B25/003 Primary

  Methods or algorithms therefor · CPC title

• B66B29/00

  Safety devices of escalators or moving walkways (walkways of variable speed type B66B21/12; handrails of variable speed type B66B23/26) · CPC title