Title:
ELECTRIC ENERGY METER STRUCTURE FOR ANSI ROUND METER OF COMPATIBLE SINGLE-PHASE AND THREE-PHASE RELAY SCHEME
Document Type and Number:
WIPO Patent Application WO/2018/032709
Kind Code:
A1
Abstract:
An electric energy meter structure for an ANSI (American National Standards Institute) round meter of a compatible single-phase and three-phase relay scheme, comprising a base (1), an inner cover (2) and an outer cover (3); a first circuit board (21) and a second circuit board (22) are provided in a cavity formed by the inner cover (2) and the base (1), the first circuit board (21) and the second circuit board (22) being vertically spaced and fixedly connected to a support structure; the base (1) is provided with a module assembly (4) of a relay and a transformer, the module assembly (4) being connected to a guide sheet (41), the guide sheet (41) protruding from the base (1). The electric energy meter for an ANSI round meter of a compatible single-phase and three-phase relay scheme is simple and reliable in structure, is easy to be manufactured at low cost, can realize the combination of the respective schemes of using a relay and using a manganese-copper transformer into one meter, is simple to be assembled at low cost, and meanwhile facilitates enterprises' production and stocking.
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Inventors:
ZHAO SONG (CN)
ZENG CHANGYUN (CN)
ZENG CHANGYUN (CN)
Application Number:
PCT/CN2017/000471
Publication Date:
February 22, 2018
Filing Date:
July 28, 2017
Export Citation:
Assignee:
NINGBO SANXING MEDICAL & ELECTRIC CO LTD (CN)
International Classes:
G01R11/04
Foreign References:
| CN106291018A | 2017-01-04 | |||
| CN205581203U | 2016-09-14 | |||
| CN203616388U | 2014-05-28 | |||
| US20040000900A1 | 2004-01-01 | |||
| CN202102035U | 2012-01-04 | |||
| CN202649268U | 2013-01-02 | |||
| US5966010A | 1999-10-12 | |||
| US5577933A | 1996-11-26 |
Attorney, Agent or Firm:
NINGBO CHANNEL PATENT ATTORNEYS OFFICE (CN)
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