JPS58129190U - Magnetic plate for electronic watches - Google Patents

Magnetic plate for electronic watches

Info

Publication number
JPS58129190U
JPS58129190U JP654183U JP654183U JPS58129190U JP S58129190 U JPS58129190 U JP S58129190U JP 654183 U JP654183 U JP 654183U JP 654183 U JP654183 U JP 654183U JP S58129190 U JPS58129190 U JP S58129190U
Authority
JP
Japan
Prior art keywords
magnetic plate
electronic watches
shield plate
magnetic
magnetic shield
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP654183U
Other languages
Japanese (ja)
Inventor
延男 石川
Original Assignee
セイコーエプソン株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by セイコーエプソン株式会社 filed Critical セイコーエプソン株式会社
Priority to JP654183U priority Critical patent/JPS58129190U/en
Publication of JPS58129190U publication Critical patent/JPS58129190U/en
Pending legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は外部から加わる磁界が磁心に集中する様子を示
す。第２図は磁心に集中していた磁束が耐磁板によって
分散された様子を示す。第３図は本実施例による耐磁板
の断面図を示す。第４図は゛磁界の周波数と鋼の表面に
残る透磁率の高い部分の厚みの関係を示す。 １・・・・・・コイル、２・・・・・・ステーター、３
・・・・・・外部磁界、４・・・・・・耐磁板、５．ｌ
ａ・・・・・・磁心、６・・・・・・本実施例による耐
磁板。FIG. 1 shows how a magnetic field applied from the outside is concentrated on the magnetic core. Figure 2 shows how the magnetic flux concentrated in the magnetic core is dispersed by the anti-magnetic plate. FIG. 3 shows a cross-sectional view of the magnetic shield plate according to this embodiment. Figure 4 shows the relationship between the frequency of the magnetic field and the thickness of the high permeability portion remaining on the surface of the steel. 1... Coil, 2... Stator, 3
...external magnetic field, 4...magnetic shielding plate, 5. l
a...Magnetic core, 6...Magnetic plate according to this example.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）モーターを有する電子時計において、前記モータ
ーの耐磁板を高透磁率材料と高導電率材料を複合した材
料で構成したことを特徴とする電子時計の耐磁板。(1) A magnetic shield plate for an electronic watch having a motor, characterized in that the magnetic shield plate of the motor is made of a composite material of a high magnetic permeability material and a high conductivity material. （２）前記高透磁率材料と前記高導電率材料の間に絶縁
層を構成したことを特徴とする実用新案登録請求の範囲
第１項記載の電子時計の耐磁板。(2) The magnetic shield plate for an electronic timepiece as set forth in claim 1, which is a utility model registration, characterized in that an insulating layer is formed between the high magnetic permeability material and the high conductivity material.
JP654183U 1983-01-20 1983-01-20 Magnetic plate for electronic watches Pending JPS58129190U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP654183U JPS58129190U (en) 1983-01-20 1983-01-20 Magnetic plate for electronic watches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP654183U JPS58129190U (en) 1983-01-20 1983-01-20 Magnetic plate for electronic watches

Publications (1)

Publication Number Publication Date
JPS58129190U true JPS58129190U (en) 1983-09-01

Family

ID=30019327

Family Applications (1)

Application Number Title Priority Date Filing Date
JP654183U Pending JPS58129190U (en) 1983-01-20 1983-01-20 Magnetic plate for electronic watches

Country Status (1)

Country Link
JP (1) JPS58129190U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011039061A (en) * 2009-08-17 2011-02-24 Swatch Group Research & Development Ltd Protection device of balance wheel spring for timepiece

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011039061A (en) * 2009-08-17 2011-02-24 Swatch Group Research & Development Ltd Protection device of balance wheel spring for timepiece

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