JPS57116567A - Small-sized motor with battery lifetime predicting function - Google Patents

Small-sized motor with battery lifetime predicting function

Info

Publication number
JPS57116567A
JPS57116567A JP293981A JP293981A JPS57116567A JP S57116567 A JPS57116567 A JP S57116567A JP 293981 A JP293981 A JP 293981A JP 293981 A JP293981 A JP 293981A JP S57116567 A JPS57116567 A JP S57116567A
Authority
JP
Japan
Prior art keywords
rotor
battery
lifetime
main
path
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.)
Granted
Application number
JP293981A
Other languages
Japanese (ja)
Other versions
JPH0128352B2 (en
Inventor
Yuji Kitamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seikosha KK
Original Assignee
Seikosha KK
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 Seikosha KK filed Critical Seikosha KK
Priority to JP293981A priority Critical patent/JPS57116567A/en
Publication of JPS57116567A publication Critical patent/JPS57116567A/en
Publication of JPH0128352B2 publication Critical patent/JPH0128352B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/02—Machines with one stator and two or more rotors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromechanical Clocks (AREA)

Abstract

PURPOSE:To normally perform the display of an operation by a second flash simultaneously in addition to the prenotice of the lifetime of a battery without adding anything to an electric circuit in an analog type watch. CONSTITUTION:Poles 6a, 6b of a stator for a main rotor 12 which drives a wheel train 15 of a watch are formed on a main magnetic flux path 18. Poles 7a, 7b of a stator for a subrotor 13 which drives a gear 16 with a battery lifetime display are formed on a submagnetic flux path 19 displaced from the main path 18, and the minimum starting voltage of the rotor 13 is increased larger than that of the main rotor 12. While the voltage of the battery is sufficient, magnetic flux capable of driving the rotor 13 passes through the path 19, but when the voltage of the battery is lowered to the vicinity of its lifetime, the rotor 13 no longer operates. As a result, the gear 16 which is driven by the rotor B so that its operation can be seen from a window hole 17 stops rotating, and the end of the lifetime of the battery can be notified.
JP293981A 1981-01-12 1981-01-12 Small-sized motor with battery lifetime predicting function Granted JPS57116567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP293981A JPS57116567A (en) 1981-01-12 1981-01-12 Small-sized motor with battery lifetime predicting function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP293981A JPS57116567A (en) 1981-01-12 1981-01-12 Small-sized motor with battery lifetime predicting function

Publications (2)

Publication Number Publication Date
JPS57116567A true JPS57116567A (en) 1982-07-20
JPH0128352B2 JPH0128352B2 (en) 1989-06-02

Family

ID=11543321

Family Applications (1)

Application Number Title Priority Date Filing Date
JP293981A Granted JPS57116567A (en) 1981-01-12 1981-01-12 Small-sized motor with battery lifetime predicting function

Country Status (1)

Country Link
JP (1) JPS57116567A (en)

Also Published As

Publication number Publication date
JPH0128352B2 (en) 1989-06-02

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