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Patent Searching and Data


Title:
SEALING BODY FORMING METHOD IN COIL FOR ELECTROMAGNETIC RELAY
Document Type and Number:
Japanese Patent JPH04280024
Kind Code:
A
Abstract:

PURPOSE: To prevent deformation of a first mold constituting a coil bobbin and breakage of a coil by fixing an electromagnet structure in three directions, and injecting a thermoplastic resin for a second mold from the opposite side of a coil terminal.

CONSTITUTION: In an electromagnet structure 6, a coil 4 is wound around a coil bobbin 3 as a first mold where a coil terminal 1 is planted therein and an iron core 2 is housed therein, and a relay iron 5 magnetically connected to one end of the iron core is disposed outside of the coil. The electromagnet structure 6 is contained inside a mold for injection molding, and is fixed in three directions by fixing pieces 10-12. A thermoplastic molten resin for a second mold is injected from the opposite side of the coil terminal 1.


Inventors:
Furuya, Toshiyuki
Kojima, Katsuto
Application Number:
JP1991000067986
Publication Date:
October 06, 1992
Filing Date:
March 07, 1991
Export Citation:
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Assignee:
MITSUBISHI KASEI CORP
NEC CORP
International Classes:
H01H49/00; (IPC1-7): H01H49/00