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Patent Searching and Data


Title:
ELECTRONIC ELECTRIC METER RESISTANT TO ALTERNATING MAGNETIC FIELD INTERFERENCES
Document Type and Number:
WIPO Patent Application WO/2014/079238
Kind Code:
A1
Abstract:
Disclosed is an electronic electric meter resistant to alternating magnetic field interferences, which comprises a current divider, a relay, and a circuit board of the electronic electric meter. The current divider comprises a piece of a sampling resistor sheet made of a high resistivity material. One through hole is provided in the sampling resistor sheet, the two ends of which are provided a first connecting end and a second connecting end, respectively. The first connecting end is formed by integrally protruding upwards from an upper-side edge of the current divider. The second connecting end is formed by integrally protruding downwards from a lower-side edge of the current divider. One signal line is connected on the first connecting end and the second connecting end, respectively. The signal line on the second connecting end passes through the through hole is hinged to the signal line on the first connecting end. The ends of the two signal lines are connected to the circuit board, respectively. The structure is adopted to counteract alternating magnetic field interferences in a definite direction (interferences generated by a cable), so as to further counteract alternating magnetic field interferences in indefinite directions, so as to effectively ensure the accuracy of measurement by the electronic electric meter.

Inventors:
HONG YAOSHENG (CN)
ZHONG SHUMING (CN)
LEE LIANYONG (CN)
Application Number:
PCT/CN2013/081567
Publication Date:
May 30, 2014
Filing Date:
August 15, 2013
Export Citation:
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Assignee:
XIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD (CN)
International Classes:
G01R11/00; G01R11/02
Foreign References:
CN202903841U2013-04-24
CN102323459A2012-01-18
US20080239574A12008-10-02
CN2599592Y2004-01-14
CN200976020Y2007-11-14
Other References:
See also references of EP 2924448A4
None
Attorney, Agent or Firm:
SHOUCHUANG JUNHE PATENT AGENT CO.,LTD.XIAMEN (CN)
厦门市首创君合专利事务所有限公司 (CN)
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