GB2580744A - An instantaneous tripping device for a miniature circuit breaker and miniature circuit breaker comprising the same - Google Patents

An instantaneous tripping device for a miniature circuit breaker and miniature circuit breaker comprising the same Download PDF

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Publication number
GB2580744A
GB2580744A GB1916422.7A GB201916422A GB2580744A GB 2580744 A GB2580744 A GB 2580744A GB 201916422 A GB201916422 A GB 201916422A GB 2580744 A GB2580744 A GB 2580744A
Authority
GB
United Kingdom
Prior art keywords
circuit breaker
miniature circuit
trip lever
contact
moving 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.)
Granted
Application number
GB1916422.7A
Other versions
GB201916422D0 (en
GB2580744B (en
Inventor
Salam Almutlaq Abdul
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.)
Alfanar Group
Original Assignee
Alfanar Group
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 Alfanar Group filed Critical Alfanar Group
Publication of GB201916422D0 publication Critical patent/GB201916422D0/en
Publication of GB2580744A publication Critical patent/GB2580744A/en
Application granted granted Critical
Publication of GB2580744B publication Critical patent/GB2580744B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)

Abstract

A miniature circuit breaker having an instantaneous tripping device with L - shaped plunger and stepped trip lever are provided. The configuration enables the efficient transformation of linear force into a rotary force thereby providing the quick opening of electrical contacts.

Claims (10)

  1. We claim:
    1 . An instantaneous tripping device for a miniature circuit breaker comprising a solenoid with L-shaped plunger.
  2. 2. A miniature circuit breaker comprising: a. a solenoid with L-shaped plunger and b. a trip lever configured to rotate when activated by the L-shaped plunger.
  3. 3. The miniature circuit breaker of claim 2, wherein the trip lever is stepped.
  4. 4. The miniature circuit breaker of claim 2 or 3, wherein the trip lever is configured to rotate counterclockwise into a contact arm of the moving contact thereby separating the moving contact from a fixed contact.
  5. 5. The miniature circuit breaker of claim 4, wherein the trip lever and the contact arm have the same pivot point.
  6. 6. The miniature circuit breaker of any one of claims 1 to 5, wherein the trip lever is configured when activated to lift the moving contact.
  7. 7. The miniature circuit breaker of claim 4, wherein the trip lever comprises a moving contact support.
  8. 8. The miniature circuit breaker of claim 7, wherein the trip lever includes a circular opening through which it is rotatably mounted to the housing by a pin.
  9. 9. The miniature circuit breaker of claim 8, wherein the circular opening has a lip.
  10. 10. The miniature circuit breaker of claim 9, comprising a contact pressure spring configured to maintain contact between the moving contact and fixed contact when the miniature circuit is on. -2- Combination of unique stepped profile of plunger of claim 2 and trip lever of claim 3, provide efficient transfer of liner force & motion to rotary force & motion which results in least possible time required for contact separation.
GB1916422.7A 2017-05-15 2018-04-02 An instantaneous tripping device for a miniature circuit breaker and miniature circuit breaker comprising the same Active GB2580744B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762506237P 2017-05-15 2017-05-15
PCT/SA2018/050016 WO2018212687A1 (en) 2017-05-15 2018-04-02 An instantaneous tripping device for a miniature circuit breaker and miniature circuit breaker comprising the same

Publications (3)

Publication Number Publication Date
GB201916422D0 GB201916422D0 (en) 2019-12-25
GB2580744A true GB2580744A (en) 2020-07-29
GB2580744B GB2580744B (en) 2022-06-01

Family

ID=64274405

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1916422.7A Active GB2580744B (en) 2017-05-15 2018-04-02 An instantaneous tripping device for a miniature circuit breaker and miniature circuit breaker comprising the same

Country Status (3)

Country Link
CN (1) CN110622274A (en)
GB (1) GB2580744B (en)
WO (1) WO2018212687A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117916842A (en) * 2021-09-07 2024-04-19 阿尔芬纳公司 Improved and simplified multifunctional two-bar mechanism and improved miniature circuit breaker

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2074438C1 (en) * 1994-10-14 1997-02-27 Всероссийский электротехнический институт им.В.И.Ленина Electromagnetic drive for switches
FR2806522A1 (en) * 2000-03-14 2001-09-21 Schneider Electric Ind Sa MAGNETIC TRIPPING DEVICE, ESPECIALLY FOR CIRCUIT BREAKERS, AND ELECTRICAL PROTECTION DEVICE INCLUDING SUCH A DEVICE
EP2028672A1 (en) * 2007-08-20 2009-02-25 LS Industrial Systems Co., Ltd Circuit breaker having automatic release linkage
RU139886U1 (en) * 2013-10-11 2014-04-27 Общество с ограниченной ответственностью "ИЭК ХОЛДИНГ" MODULAR CIRCUIT BREAKER
RU155014U1 (en) * 2015-01-30 2015-09-20 Закрытое акционерное общество "Производственное объединение Электротехник" AUTOMATIC MULTIPLE SWITCH

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2258182T3 (en) * 2003-04-30 2006-08-16 Siemens Aktiengesellschaft ELECTROMAGNETIC SHOOTING MECHANISM.
EP2775503B1 (en) * 2013-03-06 2018-01-03 Siemens Aktiengesellschaft Autotrip plunger of a circuit breaker and circuit breaker

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2074438C1 (en) * 1994-10-14 1997-02-27 Всероссийский электротехнический институт им.В.И.Ленина Electromagnetic drive for switches
FR2806522A1 (en) * 2000-03-14 2001-09-21 Schneider Electric Ind Sa MAGNETIC TRIPPING DEVICE, ESPECIALLY FOR CIRCUIT BREAKERS, AND ELECTRICAL PROTECTION DEVICE INCLUDING SUCH A DEVICE
EP2028672A1 (en) * 2007-08-20 2009-02-25 LS Industrial Systems Co., Ltd Circuit breaker having automatic release linkage
RU139886U1 (en) * 2013-10-11 2014-04-27 Общество с ограниченной ответственностью "ИЭК ХОЛДИНГ" MODULAR CIRCUIT BREAKER
RU155014U1 (en) * 2015-01-30 2015-09-20 Закрытое акционерное общество "Производственное объединение Электротехник" AUTOMATIC MULTIPLE SWITCH

Also Published As

Publication number Publication date
GB201916422D0 (en) 2019-12-25
GB2580744B (en) 2022-06-01
WO2018212687A1 (en) 2018-11-22
CN110622274A (en) 2019-12-27

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