INTERLOCKING PROTECTION DEVICE FOR TURNOUT SWITCHING AND TURNOUT SYSTEM

• US 20190329805A1
• Filed: 12/26/2017
• Published: 10/31/2019
• Est. Priority Date: 12/30/2016
• Status: Active Grant

• Current Assignee: BYD Company Limited
• Original Assignee: BYD Company Limited
• Inventors: FANG, Yue, WANG, Hongtao, WU, Jianbo, CHEN, Yun, HE, Peng, LIU, Xianhua
• Granted Patent: US 11,305,794 B2
• Time in Patent Office: Days
• CPC Class Codes: B61L 19/06 Interlocking devices having electrical operation
• CPC Class Codes: B61L 19/14 with electrical locks
• CPC Class Codes: B61L 2019/065 with electronic means
• CPC Class Codes: B61L 21/08 Order transmission and reception arrangements for giving or withholding permission
• CPC Class Codes: B61L 5/10 Locking mechanisms for points; Means for indicating the setting of points

Abstract

The present disclosure discloses an interlocking protection device for turnout switching. The interlocking protection device for turnout switching comprises a receiving module, a confirmation module, a processing module, and a centralized control interlocking module, wherein the receiving module is configured to receive a turnout switching instruction; the confirmation module is configured to receive a confirmation instruction; the processing module is configured to determine a target turnout position according to the turnout switching instruction and output a driving confirmation signal according to the confirmation instruction; and the centralized control interlocking module comprises a confirmation unit and a position switch unit. Under a centralized control mode, the confirmation unit carries out separate turnout locking according to the target turnout position and carries out locking confirmation according to the driving confirmation signal. After locking confirmation, the position switch unit closes target turnout position switches and opens the other turnout position switches.

Claims

1. An interlocking protection device for turnout switching, comprising:

a receiving module, configured to receive a turnout switching instruction;

a confirmation module, configured to receive a confirmation instruction;

a processing module, configured to determine a target turnout position according to the turnout switching instruction and output a driving confirmation signal according to the confirmation instruction; and

a centralized control interlocking module, wherein the centralized control interlocking module comprises a confirmation unit and a position switch unit;

under a centralized control mode, the confirmation unit carries out separate turnout locking according to the target turnout position and carries out locking confirmation according to the driving confirmation signal;

after locking confirmation, the position switch unit closes target turnout position switches according to the target turnout position and opens other turnout position switches to output a target turnout switching control signal.

2. The interlocking protection device for turnout switching according to claim 1, wherein the confirmation unit further comprises:

locking switches, configured to be closed to carry out separate turnout locking when the target turnout position is received under the centralized control mode; and

confirmation switches, configured to be closed to carry out locking confirmation when the driving confirmation signal is received under the centralized control mode.

3. The interlocking protection device for turnout switching according to claim 1, wherein the locking switches comprise a first locking switch and a second locking switch, and the confirmation switches comprise a first confirmation switch and a second confirmation switch.

4. The interlocking protection device for turnout switching according to claim 3, wherein, one end of the first locking switch is connected to one end of the first confirmation switch, the other end of the first locking switch is connected to a positive pole of a power supply, the other end of the first confirmation switch is connected to the position switch unit, one end of the second locking switch is connected to one end of the second confirmation switch, the other end of the second locking switch is connected to a negative pole of the power supply, and the other end of the second confirmation switch is connected to the position switch unit.

5. The interlocking protection device for turnout switching according to claim 4, wherein the position switch unit comprises:

a first interlocking protection branch, wherein the first interlocking protection branch comprises normally opened first turnout position switches and a normally closed second turnout position switch, there are two normally opened first turnout position switches, each normally opened first turnout position switch comprises a movable contact, a first stationary contact, and a second stationary contact, wherein the movable contact of the normally opened first turnout position switch is connected to the other end of the first conformation switch, the first stationary contact of the normally opened first turnout position switch is connected to one end of the normally closed second turnout position switch, the other end of the normally closed second turnout position switch is connected to a turnout switcher, the movable contact of the other normally opened first turnout position switch is connected to the other end of the second confirmation switch, and the first stationary contact of the normally opened first turnout position switch is connected to the turnout switcher; and

a second interlocking protection branch, wherein the second interlocking protection branch comprises normally opened second turnout position switches, there are two normally opened second turnout position switches, wherein each normally opened second turnout position switch comprises a movable contact, a first stationary contact, and a second stationary contact, the movable contact of the normally opened second turnout position switch is connected to the second stationary contact of the normally opened first turnout position switch, the first stationary contact of the normally opened second turnout position switch is connected to the turnout switcher, the movable contact of the other normally opened second turnout position switch is connected to the second stationary contact of the other normally opened first turnout position switch, and the first stationary contact of the other normally opened second turnout position switch is connected to the turnout switcher.

6. The interlocking protection device for turnout switching according to claim 5, wherein

the first interlocking protection branch and the second interlocking protection branch respectively further comprise a normally closed third turnout position switch, wherein, in the first interlocking protection branch, one end of the normally closed third turnout position switch is connected to the other end of the normally closed second turnout position switch, and the other end of the normally closed third turnout position switch is connected to the turnout switcher;

in the second interlocking protection branch, one end of the normally closed third turnout position switch is connected to the first stationary contact of the normally opened second turnout position switch, and the other end of the normally closed third turnout position switch is connected to the turnout switcher; and

the position switch unit further comprises a third interlocking protection branch, the third interlocking protection branch comprises normally opened third turnout position switches, there are two normally opened third turnout position switches, each normally opened third turnout position switch comprises a movable contact, a first stationary contact, and a second stationary contact, the movable contact of the normally opened third turnout position switch is connected to the second stationary contact of the normally opened second turnout position switch, the first stationary contact of the normally opened third turnout position switch is connected to the turnout switcher, the movable contact of the other normally opened third turnout position switch is connected to the second stationary contact of the other normally opened second turnout position switch, and the first stationary contact of the other normally opened third turnout position switch is connected to the turnout switcher.

7. The interlocking protection device for turnout switching according to claim 6, wherein

the first interlocking protection branch, the second interlocking protection branch and the third interlocking protection branch respectively further comprise a normally closed fourth turnout position switch, wherein, in the first interlocking protection branch and the second interlocking protection branch, one end of the normally closed fourth turnout position switch is connected to the other end of the normally closed third turnout position switch, and the other end of the normally closed fourth turnout position switch is connected to the turnout switcher;

in the third interlocking protection branch, one end of the normally closed fourth turnout position switch is connected to the first stationary contact of the normally opened third turnout position switch, and the other end of the normally closed fourth turnout position switch is connected to the turnout switcher; and

the position switch unit further comprises a fourth interlocking protection branch, the fourth interlocking protection branch comprises normally opened fourth turnout position switches, there are two normally opened fourth turnout position switches, each normally opened fourth turnout position switch comprises a movable contact, a first stationary contact, and a second stationary contact, the movable contact of the normally opened fourth turnout position switch is connected to the second stationary contact of the normally opened third turnout position switch, the first stationary contact of the normally opened fourth turnout position switch is connected to the turnout switcher, the movable contact of the other normally opened fourth turnout position switch is connected to the second stationary contact of the other normally opened third turnout position switch, and the first stationary contact of the other normally opened fourth turnout position switch is connected to the turnout switcher.

8. The interlocking protection device for turnout switching according to claim 7, wherein

the first interlocking protection branch, the second interlocking protection branch, the third interlocking protection branch and the fourth interlocking protection branch respectively further comprise a normally closed fifth turnout position switch, wherein, in the first interlocking protection branch, the second interlocking protection branch and the third interlocking protection branch, one end of the normally closed fifth turnout position switch is connected to the other end of the normally closed fourth turnout position switch, and the other end of the normally closed fifth turnout position switch is connected to the turnout switcher;

in the fourth interlocking protection branch, one end of the normally closed fifth turnout position switch is connected to the first stationary contact of the normally opened fourth turnout position switch, and the other end of the normally closed fifth turnout position switch is connected to the turnout switcher; and

the position switch unit further comprises a fifth interlocking protection branch, the fifth interlocking protection branch comprises normally opened fifth turnout position switches, there are two normally opened fifth turnout position switches, each normally opened fifth turnout position switch comprises a movable contact, a first stationary contact, and a second stationary contact, wherein the movable contact of the normally opened fifth turnout position switch is connected to the second stationary contact of the normally opened fourth turnout position switch, the first stationary contact of the normally opened fifth turnout position switch is connected to the turnout switcher, the movable contact of the other normally opened fifth turnout position switch is connected to the second stationary contact of the other normally opened fourth turnout position switch, and the first stationary contact of the other normally opened fifth turnout position switch is connected to the turnout switcher.

9. The interlocking protection device for turnout switching according to claim 8, wherein each of the first interlocking protection branch, the second interlocking protection branch, the third interlocking protection branch, the fourth interlocking protection branch and the fifth interlocking protection branch comprises a zone locking relay.

10. The interlocking protection device for turnout switching according to claim 1, further comprising:

a switching module, configured to receive a switching instruction to switch to an emergency control mode and determine the target turnout position.

11. The interlocking protection device for turnout switching according to claim 10, further comprising:

an emergency control interlocking protection module, configured to control the target turnout position switches to be electrified according to the target turnout position and keep the other turnout position switches power-off to output a target turnout switching control signal under the emergency control mode.

12. The interlocking protection device for turnout switching according to claim 11, wherein the emergency control interlocking protection module comprises:

a first emergency interlocking protection branch, the first emergency interlocking protection branch comprises a normally opened first turnout position relay and a normally closed second turnout position relay, one end of the normally opened first turnout position relay is connected to the switching module, and the other end of the normally opened first turnout position relay is connected to one end of the normally closed second turnout position relay;

a second emergency interlocking protection branch, the second emergency interlocking protection branch comprises a normally opened second turnout position relay, a normally closed first turnout position relay, a normally closed third turnout position relay, and a normally closed fourth turnout position relay, one end of the normally opened second turnout position relay is connected to the switching module, the other end of the normally opened second turnout position relay is connected to one end of the normally closed first turnout position relay, the other end of the normally closed first turnout position relay is connected to one end of the normally closed third turnout position relay, a first node is arranged between the other end of the normally closed first turnout position relay and one end of the normally closed third turnout position relay, the first node is connected to the other end of the normally closed second turnout position relay in the first emergency interlocking protection branch, the other end of the normally closed third turnout position relay is connected to one end of the normally closed fourth turnout position relay, and the other end of the normally closed fourth turnout position relay is connected to the turnout switcher;

a third emergency interlocking protection branch, the third emergency interlocking protection branch comprises a normally opened third turnout position relay, a normally closed fourth turnout position relay, a normally closed second turnout position relay, and the normally closed first turnout position relay, one end of the normally opened third turnout position relay is connected to the switching module, the other end of the normally opened third turnout position relay is connected to one end of the normally closed fourth turnout position relay, the other end of the normally closed fourth turnout position relay is connected to one end of the normally closed second turnout position relay, a second node is arranged between the other end of the normally closed fourth turnout position relay and one end of the normally closed second turnout position relay, the other end of the normally closed second turnout position relay is connected to one end of the normally closed first turnout position relay, and the other end of the normally closed first turnout position relay is connected to the turnout switcher; and

a fourth emergency interlocking protection branch, the fourth emergency interlocking protection branch comprises a normally opened fourth turnout position relay and a normally closed third turnout position relay, one end of the normally opened fourth turnout position relay is connected to the switching module, the other end of the normally opened fourth turnout position relay is connected to one end of the normally closed third turnout position relay, and the other end of the normally closed third turnout position relay is connected to the second node; and

a fifth emergency interlocking protection branch, the fifth emergency interlocking protection branch comprises a normally opened fifth turnout position relay, a normally closed second turnout position relay, a normally closed first turnout position relay, a normally closed third turnout position relay, and a normally closed fourth turnout position relay, wherein one end of the normally opened fifth turnout position relay is connected to the switching module, the other end of the normally opened fifth turnout position relay is connected to one end of the normally closed second turnout position relay, the other end of the normally closed second turnout position relay is connected to one end of the normally closed first turnout position relay, the other end of the normally closed first turnout position relay is connected to one end of the normally closed third turnout position relay, the other end of the normally closed third turnout position relay is connected to one end of the normally closed fourth turnout position relay, and the other end of the normally closed fourth turnout position relay is connected to the turnout switcher.

13. A turnout system, comprising:

a turnout and a switcher; and

an interlocking protection device for turnout switching comprising;

a receiving module, configured to receive a turnout switching instruction;

a confirmation module, configured to receive a confirmation instruction;

a processing module, configured to determine a target turnout position according to the turnout switching instruction and output a driving confirmation signal according to the confirmation instruction; and

a centralized control interlocking module, wherein the centralized control interlocking module comprises a confirmation unit and a position switch unit under a centralized control mode, the confirmation unit carries out separate turnout locking according to the target turnout position and carries out locking confirmation according to the driving confirmation signal;

after locking confirmation, the position switch unit closes target turnout position switches according to the target turnout position and opens other turnout position switches to output a target turnout switching control signal.

14. The turnout system according to claim 13, wherein the confirmation unit further comprises:

locking switches, configured to be closed to carry out separate turnout locking when the target turnout position is received under the centralized control mode; and

confirmation switches, configured to be closed to carry out locking confirmation when the driving confirmation signal is received under the centralized control mode.

15. The turnout system according to claim 13, wherein the locking switches comprise a first locking switch and a second locking switch, and the confirmation switches comprise a first confirmation switch and a second confirmation switch.

16. The turnout system according to claim 15, wherein, one end of the first locking switch is connected to one end of the first confirmation switch, the other end of the first locking switch is connected to a positive pole of a power supply, the other end of the first confirmation switch is connected to the position switch unit, one end of the second locking switch is connected to one end of the second confirmation switch, the other end of the second locking switch is connected to a negative pole of the power supply, and the other end of the second confirmation switch is connected to the position switch unit.