US3202783A - Switch with pole plates having a separation of non-magnetizable material - Google Patents

Switch with pole plates having a separation of non-magnetizable material Download PDF

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Publication number
US3202783A
US3202783A US173757A US17375762A US3202783A US 3202783 A US3202783 A US 3202783A US 173757 A US173757 A US 173757A US 17375762 A US17375762 A US 17375762A US 3202783 A US3202783 A US 3202783A
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US
United States
Prior art keywords
switch
cap
pole plates
armature plate
contact
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 - Lifetime
Application number
US173757A
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English (en)
Inventor
Griesen Bertus
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.)
Hazemeijer BV
Original Assignee
Hazemeijer BV
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 Hazemeijer BV filed Critical Hazemeijer BV
Application granted granted Critical
Publication of US3202783A publication Critical patent/US3202783A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/02—Energy stored by the attraction or repulsion of magnetic parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/08—Arrangements to facilitate replacement of a switch, e.g. cartridge housing
    • H01H9/085—Arrangements to facilitate replacement of a switch, e.g. cartridge housing contact separation effected by removing contact carrying element

Definitions

  • the invention concerns a high-voltage on-load disconnecting switch comprising: a stationary barrel-shaped member of insulating material, in which two fixed contacts are accommodated; a detachable switch cap of insulating material, which can be pushed on the bar-,
  • the invention aims at and ensures a higher degree of safety in a simple way.
  • each of the pole plates which is turned towards the armature plate a separation of nonmagnetizable material, perpendicular to the plane of the pole plate is provided in at least one place.
  • This embodiment concerns a single-phase switch.
  • the invention is by no means confined to this.
  • FIG. 1 illustrates a switch according to the invention in the closed position, cut through along the line I'I in FIG. 2.
  • FIG. 2 is a cross-section along the line II-II in FIG. 1.
  • the switch according to FIG. 1 comprises a stationary member located on the left and a movable member located on the right. These members will be discussed successively.
  • the stationary or barrel-shaped member is equipped with two fixed contacts 1. Each of these consists of a central part 2 and an outer part 3. Between these two parts is a cylindrical insulating switching chamber 4. The two fixed contacts 1 and the two switching chambers 4 together are surrounded by a sleeve 5 which, like the part in which the fixed contacts 1 are incorporated, is
  • each of the pole plates is subdivided over part of its length into two equal parts 6 and 6 In the narrow space between said two equal parts a strip of nonmagnetizable material 8 is present, FIG. 2.
  • the movable member of the switch consists of a cap 9 of insulating material, such as a moulding resin.
  • This cap 9 can be fitted on or removed from the stationary member of the switch in a way not specified, e.g., with the aid of a detachable handle pushed on it. With a view to the accommodation of the handle the cap 9 is profiled at its closed end (to the right in FIG. 1).
  • This plate can be displaced in the longitudinal direction of the sleeves 10 relative to said sleeves and thus moves through the axial slots 11.
  • each of the sleeves 10 is provided on the inside with a collar 15.
  • a helical spring 16 which serves as a disconnecting spring in a way to be described below.
  • the armatureplate 14 carries the two axially movable switching pins 17. On the armature plate 14, concentrically about each of the switching pins -17 on the side of the closed part of the cap 9, a raised portion 18 is present.
  • the part of each of the switching pins 17 which is located in FIG. 1 to the right of the armature plate 14 is provided with a thickening 19 for the insertion of a flexible interconnection 20 of the switching pins 17.
  • Mounted on the part of each of the switching pins 17 which is located to the left of the armature plate is a helical spring 21, of which one end rests under pressure against the armature plate and the other end against an outer collar 22 of the corresponding switching pin. These helical collar 21 serve as contact-pressure springs.
  • the parts of the movable member take up a relative position in which the disconnecting springs 16 force the armature plate 14 against the transitions 13 in the sleeves 10 and the contact-pressure springs 21 keep the switching pins 17 so far outwards that the thickenings 19 rest against the armature plate 14.
  • the whole of the movable member can be taken off or removed from the stationary member.
  • the switching pins 17 1 therefore areforced against the fixed contacts by means of the increasedttension of said springs 16.
  • the springs 21 act as contact-pressure springs. If the switch is to be closed altogether, the cap 9 has to be pushed on the sleeve 5 until the armature plate 14 comes into'contact with the pole plates 6. The switch is then in the switch-on 1 position.
  • the switch is opened by pulling at the cap 9 with the aid of the previously mentioned handle, for instance.
  • the cap 9 then moves backwards and each of the metal sleeves 10 is drawn along, so that itis separatedtfrom the V sleeves MB.
  • the force exercised by the parts 6 and 6 of the'pole plates will decreaase substantially to zero.
  • each of the tensed disconnecting springs 16' (and also the contact-pressure springs 21, which are now eased) greatly accelerates the armature plate 14 towards the right.

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  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
US173757A 1961-02-27 1962-02-16 Switch with pole plates having a separation of non-magnetizable material Expired - Lifetime US3202783A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL261717 1961-02-27

Publications (1)

Publication Number Publication Date
US3202783A true US3202783A (en) 1965-08-24

Family

ID=19752897

Family Applications (1)

Application Number Title Priority Date Filing Date
US173757A Expired - Lifetime US3202783A (en) 1961-02-27 1962-02-16 Switch with pole plates having a separation of non-magnetizable material

Country Status (5)

Country Link
US (1) US3202783A (enrdf_load_html_response)
BE (1) BE613827A (enrdf_load_html_response)
DE (1) DE1169547B (enrdf_load_html_response)
GB (1) GB933027A (enrdf_load_html_response)
NL (2) NL120218C (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242657A (en) * 1978-08-02 1980-12-30 Gustave Chaillot Electric connector

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2782278A (en) * 1954-04-27 1957-02-19 Minjeapolis Honeywell Regulato Magnetic snap switch
US2827531A (en) * 1955-05-31 1958-03-18 North American Aviation Inc Magnetically operated switch
US3017480A (en) * 1958-08-27 1962-01-16 Hazemeijer Co High-voltage circuit-breaker
US3056000A (en) * 1960-10-21 1962-09-25 Alfred R Lucas Snap acting magnetic switch construction
US3055999A (en) * 1961-05-02 1962-09-25 Alfred R Lucas Magnetic switch of the snap acting type

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2782278A (en) * 1954-04-27 1957-02-19 Minjeapolis Honeywell Regulato Magnetic snap switch
US2827531A (en) * 1955-05-31 1958-03-18 North American Aviation Inc Magnetically operated switch
US3017480A (en) * 1958-08-27 1962-01-16 Hazemeijer Co High-voltage circuit-breaker
US3056000A (en) * 1960-10-21 1962-09-25 Alfred R Lucas Snap acting magnetic switch construction
US3055999A (en) * 1961-05-02 1962-09-25 Alfred R Lucas Magnetic switch of the snap acting type

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242657A (en) * 1978-08-02 1980-12-30 Gustave Chaillot Electric connector

Also Published As

Publication number Publication date
BE613827A (nl) 1962-05-29
NL261717A (enrdf_load_html_response)
NL120218C (enrdf_load_html_response)
DE1169547B (de) 1964-05-06
GB933027A (en) 1963-07-31

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