Title:
CURRENT SENSOR
Document Type and Number:
Japanese Patent JP3971158
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a current sensor capable of detecting a current with high accuracy.
SOLUTION: In the current sensor 1, a sensor main body 3 comprises both a core material 6 and a winding 7 formed in the outer circumferential surface of the core material 6, and the sensor main body 3 is circularly connectable. The current sensor 1 is constituted so as to detect a current passing through an object to be measured by the winding 7 with an conductor to be measured surrounded. The current sensor 1 is provided with a first bobbin 9 and a second bobbin 10. The first bobbin 9 is mounted coaxially with the axis of the core material 6 to the end part of the core material 6 on the side of one end of a circularly connected connecting part, and a column-shaped first spool part 9a of an outer diameter formed smaller than the outer diameter of the core material 6 is formed on the side of the tip end part of the first bobbin 9. The second bobbin 10 is mounted coaxially with the axis of the core material 6 to the end part of the core material 6 on the side of the other end of the connecting part, and a cylindrical second spool part 10a of an outer diameter formed larger than the outer diameter of the core diameter 6 is formed on the side of the tip part of the second bobbin 10. The winding 7 on the side of one end of the connecting part is wound by the first spool part 9a, and the winding 7 on the side of the other end of the connecting part is wound by the second spool part 10a.
Inventors:
Kenichi Shionoiri
Application Number:
JP2001341314A
Publication Date:
September 05, 2007
Filing Date:
November 07, 2001
Export Citation:
Assignee:
Hioki Electric Co., Ltd.
International Classes:
G01R15/18; H01F5/02; (IPC1-7): G01R15/18; H01F5/02
Domestic Patent References:
| JP53154671U | ||||
| JP551701U | ||||
| JP175865U | ||||
| JP2118460A | ||||
| JP4118668U |
Attorney, Agent or Firm:
Shinji Sakai