Electrical circuit breaker assembly

Patent metadata

Field	Value
Publication number	US-10903022-B2
Application number	US-201916252773-A
Country	US
Kind code	B2
Filing date	Jan 21, 2019
Priority date	Jan 22, 2018
Publication date	Jan 26, 2021
Grant date	Jan 26, 2021

Abstract

A low-voltage circuit breaker device includes: a first outer conductor line and at least one first bypass line, the first outer conductor line being arranged in the circuit in parallel to the at least one first bypass line; a first mechanical bypass switch arranged in the first outer conductor line; first semiconductor circuit assembly connected in parallel to the first bypass switch; a second semiconductor circuit assembly arranged in the circuit in series with the first bypass switch and parallel to the first semiconductor circuit assembly in the first outer conductor line; a first current measuring assembly, which is connected to a first electronic control unit, arranged in the first outer conductor line, the first electronic control unit being arranged to actuate the first bypass switch, the first semiconductor circuit assembly, and the second semiconductor circuit assembly; and a second mechanical bypass switch arranged in the first bypass line.

First claim

What is claimed is:

1. A low-voltage circuit breaker device, comprising:
a first outer conductor line and at least one first bypass line, the first outer conductor line being arranged in a circuit in parallel to the at least one first bypass line;
a first mechanical bypass switch arranged in the first outer conductor line;
first semiconductor circuit assembly connected in parallel to the first bypass switch;
a second semiconductor circuit assembly arranged in the circuit in series with the first bypass switch and parallel to the first semiconductor circuit assembly in the first outer conductor line;
a first current measuring assembly, which is connected to a first electronic control unit, arranged in the first outer conductor line, the first electronic control unit being configured to actuate the first bypass switch, the first semiconductor circuit assembly, and the second semiconductor circuit assembly;
a second mechanical bypass switch arranged in the first bypass line;
a fourth semiconductor circuit assembly arranged in the circuit in series with the second bypass switch in the first bypass line; and
a second current measuring assembly, which is connected to the first electronic control unit, arranged in the first bypass line,
wherein the first electronic control unit is configured to actuate the second bypass switch and the fourth semiconductor circuit assembly,
wherein the first electronic control unit is configured to regulate the second semiconductor circuit assembly and the fourth semiconductor circuit assembly to balance a first current strength via the first outer conductor line and a second current strength via the first bypass line, and/or
wherein the first electronic control unit is configured to switch off the first bypass line if the first current strength and/or the second current strength is less than a predefinable limiting value.

2. The low-voltage circuit breaker device as claimed in claim 1 , wherein the second semiconductor circuit assembly and the fourth semiconductor circuit assembly each comprise a low-voltage semiconductor.

3. The low-voltage circuit breaker device as claimed in claim 1 , wherein the second semiconductor circuit assembly and the fourth semiconductor circuit assembly are configured to be bidirectional.

4. The low-voltage circuit breaker device as claimed in claim 2 , wherein the first electronic control unit is configured to regulate a gate voltage of the second semiconductor circuit assembly, and the second electronic control unit is configured to regulate a gate voltage of the fourth semiconductor circuit assembly.

5. The low-voltage circuit breaker device as claimed in claim 1 , wherein the low-voltage circuit breaker assembly further comprises at least one second bypass line, which is arranged in the circuit in parallel to the first outer conductor line and the first bypass line.

6. The low-voltage circuit breaker device as claimed in claim 1 , wherein the first low-voltage circuit breaker device further comprises a first communication interface, which has a communication connection to the first electronic control unit.

7. The low-voltage circuit breaker device as claimed in claim 2 , wherein the low-voltage semiconductor comprises a low-voltage MOSFET.

8. The low-voltage circuit breaker device as claimed in claim 3 , wherein the second semiconductor circuit assembly and the fourth semiconductor circuit assembly each comprise a bidirectional four-quadrant switch.

Assignees

• Eaton Intelligent Power Ltd

Inventors

• Askan Kenan
• Bartonek Michael

Classifications

• H01H9/548

  Electromechanical and static switch connected in series · CPC title

• H01H2009/543

  third parallel branch comprising an energy absorber, e.g. MOV, PTC, Zener · CPC title

• H01H2009/544

  the static switching means being an insulated gate bipolar transistor, e.g. IGBT, Darlington configuration of FET and bipolar transistor · CPC title

• H01H9/542 Primary

  Contacts shunted by static switch means · CPC title

• H02H3/16

  responsive to fault current to earth, frame or mass (with balanced or differential arrangement H02H3/26 {; monitoring earth connection H02H5/105}) · CPC title