Systems and methods for controlling a position of contacts in a relay device

Patent metadata

Field	Value
Publication number	US-12119191-B2
Application number	US-202217884330-A
Country	US
Kind code	B2
Filing date	Aug 9, 2022
Priority date	Sep 30, 2019
Publication date	Oct 15, 2024
Grant date	Oct 15, 2024

Abstract

A system may include a relay device. The relay device may include an armature that moves between a first position that electrically couples a first contact to a second contact and a second position that electrically uncouples the first contact from the second contact. The relay device may also include a relay coil that receives a voltage configured to magnetize a relay coil, thereby causing the armature to move from the first position to the second position. The system also includes a control system that receives an indication that the armature is in the second position and sends a signal to an actuator in response to receiving the indication. The signal causes an arm associated with the actuator to move the armature to achieve a gap distance between the first contact and the second contact.

First claim

The invention claimed is:

1. A system, comprising:
a switching device, comprising:
an armature configured to move between a first position that electrically couples a first contact to a second contact and a second position that electrically uncouples the first contact from the second contact;
a coil is configured to receive a voltage configured to energize the coil, thereby causing the armature to move from the first position to the second position; and
an actuator configured to receive a signal configured to cause an arm associated with the actuator to move the armature to achieve a gap distance between the first contact and the second contact, wherein the gap distance corresponds to a distance between the first contact and the second contact that prevents a restrike from occurring after the armature moves from the first position to the second position, and wherein the gap distance is determined dynamically based on one or more properties of the first contact, the second contact, or both over time.

2. The system of claim 1 , wherein the actuator comprises a stepper motor.

3. The system of claim 1 , wherein the one or more properties comprise a current, a voltage, a fault condition, or any combination thereof.

4. The system of claim 1 , comprising a computing system configured to determine the gap distance based on the one or more properties.

5. The system of claim 4 , wherein data indicative of the one or more properties is received via one or more sensors associated with one or more upstream devices relative to the switching device, one or more downstream devices relative to the switching device, or both.

6. The system of claim 5 , wherein the computing system is configured to employ a machine learning algorithm and the data to determine the gap distance.

7. The system of claim 1 , wherein the arm is coupled to the armature.

8. A non-transitory computer-readable medium comprising computer-executable instructions that, when executed, are configured to cause at least one processor to perform operations comprising:
receiving data indicative of one or more properties associated with a first contact, a second contact, or both of a switch device;
dynamically determining a gap distance between the first contact and the second contact based on the data and a relationship between one or more gap distances between the first contact and the second contact and one or more respective expected number of bounces between the first contact and the second contact;
sending a signal to an actuator configured to couple to an armature of the switch device, wherein the signal is configured to cause an arm associated with the actuator to move the armature to achieve the gap distance between the first contact and the second contact;
receiving additional data comprising:
a resistance of a spring coupled to the armature;
an inductance of a coil of the switch device; or
an indication of the gap distance from the actuator; and

verifying the gap distance based on the additional data.

9. The non-transitory computer-readable medium of claim 8 , wherein the gap distance is associated with minimizing an amount of bounces between the first contact and the second contact after a close operation is performed.

10. The non-transitory computer-readable medium of claim 8 , wherein the gap distance corresponds to a distance between the first contact and the second contact that prevents a restrike from occurring after the armature moves from a first position to a second position.

11. The non-transitory computer-readable medium of claim 8 , wherein the signal is indicative of a number of steps associated with a stepper motor.

12. A method, comprising:
receiving, via at least one processor, data indicative of one or more properties associated with a switch device, wherein the one or more properties comprise an inductance of a coil of the switch device, a resistance of a spring coupled to an armature of the switch device, or both;
dynamically determining, via the at least one processor, a gap distance between a first contact and a second contact of the switch device based on the data and a relationship between one or more gap distances between the first contact and the second contact and one or more respective expected number of bounces between the first contact and the second contact; and
sending, via the at least one processor, a signal to an actuator configured to couple to an armature of the switch device, wherein the signal is configured to cause an arm associated with the actuator to move the armature to achieve the gap distance between the first contact and the second contact.

13. The method of claim 12 , wherein the data is received via one or more sensors upstream or downstream from the switch device.

14. The method of claim 12 , wherein the signal corresponds to a number of steps of a stepper motor.

15. The method of claim 12 , wherein the one or more properties are associated with the first contact, the second contact, or both.

16. The method of claim 15 , wherein the gap distance is determined based on a material of the first contact and the second contact.

17. A non-transitory computer-readable medium comprising computer-executable instructions that, when executed, are configured to cause at least one processor to perform operations comprising:
receiving data indicative of one or more properties associated with a first contact, a second contact, or both of a switch device;
dynamically determining a gap distance between the first contact and the second contact based on the data and a relationship between one or more gap distances between the first contact and the second contact and one or more respective expected number of bounces between the first contact and the second contact, wherein the gap distance corresponds to a distance between the first contact and the second contact that prevents a restrike from occurring after an armature of the switch device moves from a first position in which the first contact is coupled to a load device to a second position in which the first contact is uncoupled from the load device; and
sending a signal to an actuator configured to couple to an armature of the switch device, wherein the signal is configured to cause an arm associated with the actuator to move the armature to achieve the gap distance between the first contact and the second contact.

18. A method, comprising:
receiving, via at least one processor, data indicative of one or more properties associated with a switch device, wherein the one or more properties are associated with a first contact of the switch device, a second contact of the switch device, or both;
dynamically determining, via the at least one processor, a gap distance between a first contact and a second contact of the switch device based on the data and a relationship between one or more gap distances between the first contact and the second contact and one or more respective expected number of bounces between the first contact and the second contact, wherein the gap distance is determined based on a material of the first contact and the second contact; and
sending, via the at least one processor, a signal to an actuator configured to couple to an armature of the switch device, wherein the signal is configured to cause an arm associated with the actuator to move the armature to achieve the gap distance between the first contact and the second contact.

Assignees

• Rockwell Automation Tech Inc

Inventors

• Elmiger David
• Duffy Patrick K
• Adkins Kyle B

Classifications

• H01H50/64

  Driving arrangements between movable part of magnetic circuit and contact (structurally associated with contact spring sets H01H50/58) · CPC title

• H01H50/54

  Contact arrangements · CPC title

• H01H50/44

  Magnetic coils or windings · CPC title

• H01H50/18

  Movable parts of magnetic circuits, e.g. armature · CPC title

• H01H50/34

  Means for adjusting limits of movement; Mechanical means for adjusting returning force · CPC title