Data transmission apparatus of circuit breaker controller

Patent metadata

Field	Value
Publication number	US-11256225-B2
Application number	US-201716319413-A
Country	US
Kind code	B2
Filing date	Jul 3, 2017
Priority date	Jul 22, 2016
Publication date	Feb 22, 2022
Grant date	Feb 22, 2022

Abstract

The present invention discloses a data transmission apparatus of a circuit breaker controller. The data transmission apparatus comprises: a first component having a first power supply and a second component having a second power supply. The first component and the second component share a storage device. The second component is connected to a main circuit of the circuit breaker controller. The second component collects parameters of the main circuit and stores the parameters in the storage device. The second power supply powers the second component and is powered by the main circuit. The first component is connected to a communication device. The first component establishes data transmission between the communication device and the storage device. The first power supply powers the first component and is powered by an external power supply. The second power supply is connected to the first power supply and transmits a control signal to the first power supply.

First claim

What is claimed is:

1. A data transmission apparatus of circuit breaker controller, comprising a first component having a first power supply and a second component having a second power supply, wherein
the first component and the second component share a storage device;
the second component is connected to a main circuit of the circuit breaker controller, the second component collects parameters of the main circuit and stores the parameters in the storage device, the second power supply powers the second component and is powered by the main circuit;
the first component is connected to a communication device, the first component establishes data transmission between the communication device and the storage device, the first power supply powers the first component and is powered by an external power supply, the second power supply is connected to the first power supply and transmits a control signal to the first power supply;
an input end of the first power supply is connected to ground through a switch transistor, the input end of the first power supply is further connected to a supply end of the connection interface, and an output end of the second power supply is connected to the switch transistor;
the output end of the second power supply outputs a high level, and the switch transistor is switched on, the input end of the first power supply is connected to ground so that the first power supply is switched off;
the output end of the second power supply outputs a low level, and the switch transistor is switched off, the input end of the first power supply is connected to the supply end of the connection interface, and the first power supply is controlled by the supply end of the connection interface.

2. The data transmission apparatus of circuit breaker controller according to claim 1 , wherein
the second component comprises: the second power supply, a sampling circuit, a controller and the storage device;
the second power supply is connected in the main circuit of the circuit breaker controller, and the second power supply supplies power to each element of the second component when the main circuit is switched on;
the sampling circuit is connected to the main circuit of the circuit breaker controller, and the sampling circuit collects parameters of the main circuit;
the controller is connected to the sampling circuit and the storage device, the parameters collected by the sampling circuit are processed by the controller and stored in the storage device.

3. The data transmission apparatus of circuit breaker controller according to claim 2 , wherein
the first component comprises: the first power supply, a connection interface, an interface circuit, and the storage device;
the first power supply is powered by the external power supply through the connection interface, and the first power supply supplies power to each element of the first component;
the connection interface is connected to the communication device and/or the external power supply;
the interface circuit is connected to the first power supply, the connection interface and the storage device, the first power supply supplies power to the storage device through the interface circuit, the connection interface and the interface circuit establish data transmission between the communication device and the storage device.

4. The data transmission apparatus of circuit breaker controller according to claim 3 , wherein the second power supply transmits a control signal to the first power supply when the controller communicates with the storage device, the first power supply is switched off so that the interface circuit is disconnected with the storage device.

5. The data transmission apparatus of circuit breaker controller according to claim 4 , wherein the communication device can only read data in the storage device through the connection interface and the interface circuit.

6. The data transmission apparatus of circuit breaker controller according to claim 5 , wherein a first write protection control pin of a chip of the interface circuit is provided with a high level and a second write protection control pin is provided with a low level so as to form a writing protection circuit, so that the interface circuit can only read the storage device.

7. The data transmission apparatus of circuit breaker controller according to claim 5 , wherein
a power input end of a chip of the storage device is respectively connected to the output end of the second power supply and an output power supply pin of the chip of the interface circuit through respective diodes;
the output end of the second power supply outputs a high level, and supplies power to the chip of the storage device through the diode, the first power supply is switched off, and the output power supply pin of the chip of the interface circuit does not output a power supply level;
the output end of the second power supply outputs a low level, the first power supply is switched on, and the output power supply pin of the chip of the interface circuit outputs the power supply level to supply power to the chip of the storage device.

8. The data transmission apparatus of circuit breaker controller according to claim 5 , wherein
chip select signal pins of the chip of the storage device are respectively connected to a chip select output control pin of the controller and a chip select output control pin of the chip of the interface circuit through respective diodes;
the output end of the second power supply outputs a high level, the first power supply is switched off, the chip select output control pin of the controller outputs a chip select signal, while the chip select output control pin of the chip of the interface circuit does not output a chip select signal, so that the chip of the storage device selects to communicate with the controller;
the output end of the second power supply outputs a low level, the first power supply is switched on, the chip select output control pin of the controller does not output the chip select signal, while the chip select output control pin of the chip of the interface circuit outputs the chip select signal, so that the chip of the storage device selects to communicate with the interface circuit.

9. The data transmission apparatus of circuit breaker controller according to claim 5 , wherein
read enable control pins of the chip of the storage device are respectively connected to a read enable control pin of the controller and a read enable control pin of the chip of the interface circuit through respective diodes;
the output end of the second power supply outputs a high level, the first power supply is switched off, the read enable control pin of the controller outputs a read enable signal, while the read enable control pin of the chip of the interface circuit does not output a read enable signal, so that the chip of the storage device is read by the controller;
the output end of the second power supply outputs a low level, the first power supply is switched on, the read enable control pin of the controller does not output the read enable signal, while the read enable control pin of the chip of the interface circuit outputs the read enable signal, so that the chip of the storage device is read by the chip of the interface circuit.

10. The data transmission apparatus of circuit breaker controller according to claim 5 , wherein
a write protection pin of the chip of the storage device is connected to the output end of the second power supply;
the output end of the second power supply outputs a high level, the write protection pin of the chip of the storage device is connected to the high level, and the chip of the storage device allows writing;
the output end of the sec

Assignees

• Seari Electric Technology Co Ltd
• Zhejiang Chint Electrics Co Ltd

Inventors

• Yi Xianjun
• Chen Lijun
• Yin ying jun

Classifications

• H01H71/00

  Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00 · CPC title

• H02H3/00

  Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection (specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems H02H7/00; systems for change-over to standby supply H02J9/00 ){; integrated protection (for motors H02H7/0822)} · CPC title

• G05B19/042

  using digital processors (G05B19/05 takes precedence) · CPC title

• H02H1/0061

  concerning transmission of signals (transmission of measured quantities or switching orders; sectionalised protection involving signal transmission between at least two stations H02H7/261; comparison of the voltage or current values at two spaced portions of a single system H02H3/28; transferring the output of a sensing member to another variable G01D5/00; electrical measuring arrangements using modulation of electromagnetic waves, e.g. light beams G01R15/24, G01R15/26) · CPC title

• G05B2219/21154

  Over current protection · CPC title