GB1140689A - Improvements in plunger operated switch unit - Google Patents

Improvements in plunger operated switch unit

Info

Publication number
GB1140689A
GB1140689A GB4966/66A GB496666A GB1140689A GB 1140689 A GB1140689 A GB 1140689A GB 4966/66 A GB4966/66 A GB 4966/66A GB 496666 A GB496666 A GB 496666A GB 1140689 A GB1140689 A GB 1140689A
Authority
GB
United Kingdom
Prior art keywords
plunger
switch
snap
contact
speed
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.)
Expired
Application number
GB4966/66A
Inventor
John Lee Slonneger
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1140689A publication Critical patent/GB1140689A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/06—Switches operated by change of speed
    • H01H35/10—Centrifugal switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
    • H01H13/40—Blade spring with at least one snap-acting leg and at least one separate contact-carrying or contact-actuating leg
    • H01H13/42—Blade spring with at least one snap-acting leg and at least one separate contact-carrying or contact-actuating leg having three legs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/64—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member wherein the switch has more than two electrically distinguishable positions, e.g. multi-position push-button switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H02K11/23—Mechanically-actuated centrifugal switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Mechanisms For Operating Contacts (AREA)

Abstract

1,140,689. Speed-responsive switches. GENERAL ELECTRIC CO. 4 Feb., 1966, No. 4966/66. Heading H1N. A switch unit suitable for controlling the starting winding of an A.C. motor consists of a snap-action switch 40 and a non-snap switch 70 in a common housing 32, the non-snap switch having a flexible contact arm 121 which applies a bias to an operating plunger 84 to cushion the plunger as it reaches its extreme position in one direction as a result of a continuous bias applied to the plunger by a toggle spring 114 of the snap switch. The switch 40 has a contact 52 movable between fixed contacts 97, 98 and biased to contact 98 by spring 114. Release of the plunger 84 by a speed-responsive member 77, causes contact 52 to change over, and contact 123 on arm 121 to close. The arm 121 passes through an over-sized slot 128 in the plunger so as to be operated with a lost motion, the plunger movement being limited by a plunger recess 131 and housing projection 132. The contacts 99, 123 are connected in an auxiliary circuit via terminals 71, 73, but in a modification (Fig. 15) in which these contacts are normally closed and the moving contact 181 is connected to terminal 54 of the snap-switch, the non-snap switch is connected in the circuit of the start winding of a two-speed motor, the low- and high-speed main windings of which are controlled by the snap switch. Reference has been directed by the Comptroller to Specification 1,081,528.
GB4966/66A 1966-02-24 1966-02-04 Improvements in plunger operated switch unit Expired GB1140689A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG0046123 1966-02-24

Publications (1)

Publication Number Publication Date
GB1140689A true GB1140689A (en) 1969-01-22

Family

ID=7127933

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4966/66A Expired GB1140689A (en) 1966-02-24 1966-02-04 Improvements in plunger operated switch unit

Country Status (2)

Country Link
DE (1) DE1538506B2 (en)
GB (1) GB1140689A (en)

Also Published As

Publication number Publication date
DE1538506B2 (en) 1971-11-25
DE1538506A1 (en) 1970-02-19

Similar Documents

Publication Publication Date Title
GB1440807A (en) Electric switch unit
GB911805A (en) Electric snap-action switch
GB1309459A (en) Electrical limit switch
US3219784A (en) Sliding contact switch
GB1133332A (en) Improvements relating to snap-action mechanisms
GB1021744A (en) Overtravel actuating mechanism for a snap switch
GB692238A (en) Improvements in and relating to cam-actuated electric switches
GB1140689A (en) Improvements in plunger operated switch unit
GB1185612A (en) Snap Action Electric Switches
GB1048717A (en) Magnetically operated sealed electric switch unit
GB1276807A (en) Quick acting safety disconnect electrical switch
ES319259A1 (en) Three position limit switch
GB1012706A (en) Snap action electric switches
GB1076447A (en) An improved switch in combination with a circuit breaker
GB963931A (en) Gas blast electric circuit interrupters
GB1039418A (en) Improvements in or relating to an electrical switch device
GB1405451A (en) Snap-action electric switches
GB1276557A (en) Improvements in or relating to electric snap-action switches
GB1381729A (en) Electrical switches
GB952495A (en) Improvements relating to electric limit switches
GB1447105A (en) Thermal circuit breaker
GB1453827A (en) Electric switches
GB1207985A (en) Electrical switches
GB1494470A (en) Safety limit switch
US1626461A (en) Push-button switch