Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CURRENT TRANSFORMER
Document Type and Number:
WIPO Patent Application WO/2017/146256
Kind Code:
A1
Abstract:
Provided is a current transformer in which an integrated connecting mechanism capable of opening/closing a core and waterproof performance are achieved through a simple structure, which can be given a reduced size and weight overall, and which can be smoothly installed around pre-installed wires or cables. One pair of split cores (11, 12) openably/closably connected at a hinge part (15) are configured to have a structure in which ends of the split cores are inserted into cylindrical connection parts (17) and closed to form an annular shape. In addition, columnar portions of an exterior body (14) at the ends of the split cores are removably inserted into the cylindrical connection parts (17), or the connection parts are removably inserted into the cylindrical portions of the exterior body at the ends of the split cores, so that sealing is performed between the mutually facing connection part (17) and the exterior body (14) by using an annular seal body (18). Accordingly, waterproof condition can be simply achieved by bringing the connection part (17) and the exterior body (14) into close contact with the seal body (18) while elastically deforming the seal body (18), and the structure of each waterproofing-related part is simplified to achieve the small size and weight of the transformer and thus to reduce manufacturing costs.

Inventors:
KURANAGA Yuji (15-1 Minami 2-chom, Kurume-shi Fukuoka 11, 〒8308511, JP)
ODA Hidenori (15-1 Minami 2-chom, Kurume-shi Fukuoka 11, 〒8308511, JP)
TERASAKI Koji (15-1 Minami 2-chom, Kurume-shi Fukuoka 11, 〒8308511, JP)
KODAMA Seiju (15-1 Minami 2-chome, Kurume-sh, Fukuoka 11, 〒8308511, JP)
Application Number:
JP2017/007539
Publication Date:
August 31, 2017
Filing Date:
February 27, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
DYDEN CORPORATION (15-1, Minami 2-Chome Kurume-sh, Fukuoka 11, 〒8308511, JP)
International Classes:
G01R15/18; G01R1/22; H01F38/28; H01F38/30
Domestic Patent References:
WO2016024542A12016-02-18
Foreign References:
JP2011158255A2011-08-18
JPS5016417U1975-02-21
JPS6119114A1986-01-28
JP2000088889A2000-03-31
JPH08194014A1996-07-30
JP2010243312A2010-10-28
JP2001297921A2001-10-26
Attorney, Agent or Firm:
HIRAI Yasuo (Daihakata Bldg. 10F, 2-20-1 Hakataekimae, Hakata-ku, Fukuoka-sh, Fukuoka 11, 〒8120011, JP)
Download PDF: