Current assignment method and corresponding switch arrangement

Patent metadata

Field	Value
Publication number	US-9941065-B2
Application number	US-201414259279-A
Country	US
Kind code	B2
Filing date	Apr 23, 2014
Priority date	Apr 26, 2013
Publication date	Apr 10, 2018
Grant date	Apr 10, 2018

Abstract

A current assignment method and a switch arrangement are disclosed for assigning current, the switch arrangement including two series-connected switches, each including a trigger unit to check whether a preset current condition is satisfied. A signal is sent by the trigger unit of a switch which is postpositionally placed when the current condition is satisfied, the signal at least preventing the immediate triggering of a correspondingly prepositionally placed switch after being received by the corresponding trigger unit. To achieve a technically simple communication connection between switches, in at least one embodiment each trigger unit is formed so as to send but and receive the signal, and each trigger unit includes a measurement unit for measuring an energy flow direction in a subordinate switch and a conversion unit for converting from sending to receiving or from receiving to sending appropriately when the energy flow direction is reversed.

First claim

What is claimed is:

1. A method for assigning current using a switch arrangement, wherein two switches in the switch arrangement are directly connected in series according to current, and wherein each of the two switches includes a trigger unit to correspondingly check whether a current satisfied a previously given current condition, the method comprising:
sending, when the current condition is satisfied and via the trigger unit of one of the two switches which is postpositionally placed as viewed in an energy flow direction, a signal to the trigger unit of a correspondingly prepositionally placed one of the two switches; and
at least not immediately triggering, after receiving the signal, the prepositionally placed one of the two switches, wherein each of the trigger units is configured to send and receive the signal, measure the energy flow direction in an associated one of the two switches, and when the energy flow direction is reversed, convert from sending to receiving or from receiving to sending.

2. The method of claim 1 , wherein each of the trigger units includes a first signal element and a second signal element, and when a first of the trigger units is directly connected to a second of the trigger units, and the first signal element of the first trigger unit is connected to the second signal element of the second trigger unit, and when a conversion takes place, the second signal element of the first trigger unit is connected to the first signal element of the second trigger unit.

3. The method of claim 2 , wherein one of the two signal elements of each of the trigger units is formed as a switch device while another of the two signal elements is formed as an energy source, the switch device in one of the trigger units forming a circuit together with the energy source in another of the trigger units, and
when the signal is sent, the switch device of the postpositionally placed switch correspondingly closes, wherein at least one of a voltage change and a current change caused in the circuit by a switch operating forms the signal, and the signal is measured by the prepositionally placed switch.

4. A switch arrangement for assigning current, comprising:
two switches connected directly in series according to current, wherein each of the two switches includes a trigger unit which correspondingly checks whether a current satisfied a previously given current condition,
the trigger unit of one of the two switches, postpositionally placed as viewed in an energy flow direction when the current condition is satisfied, being configured to send a signal, to at least prevent an immediate triggering of a correspondingly prepositionally placed one of the two switches, after the signal is received by the trigger unit of the prepositionally placed one of the two switches,
each of the trigger units being formed so as to send and receive the signal, and each of the trigger units including
a measurement unit configured to measure an energy flow direction in an associated switch and
a conversion unit configured to convert from sending to receiving or conversely from receiving to sending when the energy flow direction is reversed.

5. The switch arrangement of claim 4 , wherein each of the trigger units includes two different signal elements, wherein one of the signal elements of one of the trigger units is correspondingly connected to another of the signal elements of another of the trigger units, and when a conversion takes place, a connection is only correspondingly made between remaining other two signal elements of the respective two trigger units.

6. The switch arrangement of claim 5 , wherein
one of the two signal elements of each of the trigger units forms a switch device and the other of the two signal elements forms an energy source, the switch device in one of the trigger units being configured to form a circuit together with the energy source in another of the trigger units, and
the switch device of the postpositionally placed one of the switches is correspondingly connected to the energy source of the prepositionally placed one of the switches and is configured to form a circuit together with the same, wherein the switch arrangement is configured to cause at least one of a voltage change and a current change in the circuit, the change forming the signal.

7. The method of claim 1 , wherein the switch arrangement includes more than two switches.

8. The switch arrangement of claim 4 , wherein the switch arrangement includes more than two switches.

Assignees

• Siemens Ag
• Siemens Ag

Inventors

• Chen wei gang
• Dankert Mario
• He zhong yi
• Zhuo Yue

Classifications

• H01H9/54 Primary

  Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere · CPC title

• H01H9/167

  Circuits for remote indication · CPC title

• Y10T307/76

  Cross-Sectional Technologies · mapped topic

• H02H7/262

  involving transmissions of switching or blocking orders · CPC title

• H02H7/30

  Staggered disconnection · CPC title