Title:
DISTRIBUTION BOARD WITH WIRELESS LEAKAGE AND OVERHEATING ALARM FUNCTIONS ENABLING EMERGENCY SITUATION TO BE HANDLED BY APPLYING NON-CONTACT ENERGY HARVESTING LEAKAGE CURRENT AND TEMPERATURE MONITORING TECHNOLOGY
Document Type and Number:
WIPO Patent Application WO/2023/136485
Kind Code:
A1
Abstract:
According to the present invention, a distribution board with wireless leakage and overheating alarm functions enabling an emergency situation to be handled by applying a non-contact energy harvesting leakage current and temperature monitoring technology comprises: a distribution board body for receiving and distributing power; an energy harvesting unit for harvesting energy required for operation by using electromotive force induced in a main energy harvesting coil from among energy harvesting coils provided in the vicinity of each of conductors to be monitored; a leakage current monitoring unit for monitoring, in a non-contact manner, a leakage current flowing in a zero-phase current transformer coil provided to encompass, in a non-contact manner, the plurality of conductors to be monitored; a wireless transmission/reception unit for receiving the value of the leakage current from the leakage current monitoring unit, and converting the received value of the leakage current into a low-power wireless signal and transmitting same to a terminal; and an emergency situation control unit for harvesting energy required for operation by using electromotive force induced in a sub energy harvesting coil, excluding the main energy harvesting coil, if an emergency situation occurs in which the energy harvesting unit cannot harvest the energy required for operation, and notifying the terminal that the emergency situation has occurred, by using the energy harvested from the sub energy harvesting coil. According to the present invention, a leakage current can be monitored in a non-contact manner even if a disconnection occurs in one of the conductors to be monitored.
Inventors:
BAE JONG HOON (KR)
AN HAN YEUL (KR)
AN HAN YEUL (KR)
Application Number:
PCT/KR2022/020370
Publication Date:
July 20, 2023
Filing Date:
December 14, 2022
Export Citation:
Assignee:
NASAN ELECTRIC IND CO LTD (KR)
International Classes:
H02H7/22; G01R19/00; G01R31/52; G08B21/18; H01F38/28; H02B13/025; H02J9/06; H02J50/00
Foreign References:
| KR102168343B1 | 2020-10-22 | |||
| KR101440492B1 | 2014-09-18 | |||
| KR102308421B1 | 2021-10-05 | |||
| KR20170034087A | 2017-03-28 | |||
| JP2014016729A | 2014-01-30 |
Attorney, Agent or Firm:
PUKYUNG INTERNATIONAL PATENT & LAW FIRM (KR)
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