Title:
ULTRA-SMALL ELECTROMAGNETIC RELAY WITH HIGH STATIC CONTACT POINT POSITIONING PRECISION
Document Type and Number:
WIPO Patent Application WO/2018/201949
Kind Code:
A1
Abstract:
Disclosed is an ultra-small electromagnetic relay with high static contact point positioning precision, comprising a static spring (1), a coil (2) and a base (3) which are integrated through injection moulding, wherein the static spring comprises a static spring body (11) for mounting a static contact point (4) and a static spring outgoing terminal (12) extending from the static spring body to an outer part of the base; in the static spring outgoing terminal, a first positioning part (121) in the injection moulding is arranged at a place corresponding to an edge in the width direction of the base; in the static spring body, an extended protruding stretching part (111) is arranged corresponding to the length direction of the base; the protruding stretching part extends to the exterior of the base and is used as a second positioning part in the injection moulding; and in the base, a through hole (31) penetrating through the base in the thickness direction is arranged at a position which corresponds to a back face of the static spring body provided with the static contact point, so that the back face, provided with the static contact point, of the static spring body is used as a third positioning part (112) in the injection moulding and can be supported and positioned by means of a positioning member passing through the through hole of the base. The consistency of the position of the contact point of the static spring can be greatly improved in the injection moulding process and after the injection moulding; consistency between contact point gaps of products and overtravel parameters is effectively improved; and product quality is thereby improved.
More Like This:
| JP6681591 | Electromagnetic relay |
| WO/2017/107892 | CONTACT ASSEMBLY AND HIGH-VOLTAGE DIRECT-CURRENT RELAY THEREOF |
Inventors:
LIN JIABIN (CN)
Application Number:
PCT/CN2018/084478
Publication Date:
November 08, 2018
Filing Date:
April 25, 2018
Export Citation:
Assignee:
XIAMEN HONGFA SIGNAL ELECTRONICS CO LTD (CN)
International Classes:
H01H50/56; H01H50/14
Foreign References:
| CN106992101A | 2017-07-28 | |||
| CN206789501U | 2017-12-22 | |||
| CN206022248U | 2017-03-15 | |||
| CN201527934U | 2010-07-14 | |||
| JP2010044974A | 2010-02-25 |
Attorney, Agent or Firm:
BEIJING INTELLEGAL INTELLECTUAL PROPERTY AGENT LTD. (CN)
Download PDF: