GB2601686A - Pyrotechnic switching and interruption apparatus - Google Patents

Pyrotechnic switching and interruption apparatus Download PDF

Info

Publication number
GB2601686A
GB2601686A GB2202798.1A GB202202798A GB2601686A GB 2601686 A GB2601686 A GB 2601686A GB 202202798 A GB202202798 A GB 202202798A GB 2601686 A GB2601686 A GB 2601686A
Authority
GB
United Kingdom
Prior art keywords
piston
electrical conductor
conductive rod
pyrotechnic
operation state
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
GB2202798.1A
Other versions
GB202202798D0 (en
Inventor
Kadlec Stanislav
Ruempler Christian
Zacharias Albert
Stevens Alistair
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.)
Eaton Intelligent Power Ltd
Original Assignee
Eaton Intelligent Power Ltd
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 Eaton Intelligent Power Ltd filed Critical Eaton Intelligent Power Ltd
Publication of GB202202798D0 publication Critical patent/GB202202798D0/en
Publication of GB2601686A publication Critical patent/GB2601686A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H01H39/002—Switching devices actuated by an explosion produced within the device and initiated by an electric current provided with a cartridge-magazine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/04—Cutting off the power supply under fault conditions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/38—Plug-and-socket contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H01H2039/008—Switching devices actuated by an explosion produced within the device and initiated by an electric current using the switch for a battery cutoff
    • 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
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/32—Insulating body insertable between contacts

Landscapes

  • Actuator (AREA)

Abstract

A pyrotechnic switching and interruption apparatus comprises a conductive rod (30) to define a current conduction path between a first and second electrical conductor (10, 20). In a first operation state of the apparatus (1), the conductive rod (30) is arranged in the area between the first and second electrical conductor (10, 20) to electrically couple the first and second electrical conductor (10, 20) via the current conduction path. In a second operation state of the apparatus (1), a piston (40) is moved by a pyrotechnic actuator (50) to a position in the area between the first and second electrical conductor (10, 20) to interrupt the current conduction path between the first and second electrical conductor (10, 20).

Claims (13)

Claims:
1. A pyrotechnic switching and interruption apparatus, comprising: - a first and a second electrical conductor (10, 20), - a conductive rod (30) to define a current conduction path between the first and second electrical conductor (10, 20), the conductive rod (30) being movably arranged in an area between the first and the second electrical conductor (10, 20), - a piston (40) of a non-conductive material, - a pyrotechnic actuator (50), the pyrotechnic actuator (50) being coupled to the piston (40) to move the piston (40) from a first position outside of the area between the first and second electrical conductor (10, 20) to a position in the area between the first and second electrical conductor (10, 20), - an insulator (60) being arranged between the first and second electrical conductor (10, 20), the insulator (60) having a channel (61) to receive the conductive rod (30) in the first operation state of the apparatus (1), and to receive the piston (40) in the second operation state of the apparatus (1), - wherein the piston (40) is conically shaped so that the piston (40) gets stuck in the channel (61) of the insulator (60), when the pyrotechnic actuator (50) exerts the force onto the piston (40) in the second operation state of the apparatus (1), - wherein, in a first operation state of the apparatus (1), the conductive rod (30) is arranged in the area between the first and second electrical conductor (10, 20) to electrically couple the first and second electrical conductor (10, 20) via the current conduction path, - wherein, in a second operation state of the apparatus (1), the piston (40) is moved by the pyrotechnic actuator (50) to the position in the area between the first and second electrical conductor (10, 20) to interrupt the current conduction path between the first and second electrical conductor (10, 20).
2. The pyrotechnic switching an interruption apparatus of claim 1, - wherein the conductive rod (30) and the piston (40) are movably coupled to each other, - wherein the pyrotechnic actuator (50) is ignited, when the apparatus (1) is switched form the first operation state to the second operation state, - wherein the pyrotechnic actuator (50) is configured to exert a force onto the piston (40) to move the conductive rod (30) in the second operation state of the apparatus (1) out of the area between the first and second electrical conductor (10, 20) to a position at which the conduction path between the first and second electrical conductor (10, 20) is interrupted, when the pyrotechnic actuator (50) is ignited.
3. The pyrotechnic switching and interruption apparatus of claim 2, wherein the pyrotechnic actuator (50) is configured to exert the force onto the piston (40) to move the conductive rod (30) in the second operation state of the apparatus (1) to a position outside of the area between the first and second electrical conductor (10, 20), when the pyrotechnic actuator (50) is ignited.
4. The pyrotechnic switching and interruption apparatus of any of the claims 1 to 3, wherein the conductive rod (30) and the piston (40) are coupled to each other such that the piston (40) strikes the conductive rod (30), when the pyrotechnic actuator (50) is ignited.
5. The pyrotechnic switching and interruption apparatus of any of the claims 1 to 4, - wherein, in the first operation state of the apparatus (1), an end face of the conductive rod (30) and an end face of the piston (40) are arranged spaced apart from each other, - wherein the piston (40) is arranged such that the end face of the piston (40) strikes the end face of the conductive rod (30), when the pyrotechnic actuator (50) is ignited.
6. The pyrotechnic switching and interruption apparatus of claim 5, wherein the piston (40) comprises a first portion (41) being conically shaped and a second portion (42) being cy1indrically shaped, the end face of the piston (40) being formed at the front side of the second portion (42) of the piston (40).
7. The pyrotechnic switching and interruption apparatus of any of the claims 1 to 6, wherein the conductive rod (30) has at least a portion being conically shaped.
8. The pyrotechnic switching and interruption apparatus of any of the claims 1 to 7, comprising: a retention element (70) to exert a retention force onto the conductive rod (30), when the conductive rod (30) is moved out of the area between the first and second electrical conductor (10, 20).
9. The pyrotechnic switching and interruption apparatus of any of the claims 1 to 8, - wherein the first electrical conductor (10) comprises an opening (11) to receive the conductive rod (30) and the piston (40), - wherein the second electrical conductor (20) comprises an opening (21) to receive at least the conductive rod (30).
10. The pyrotechnic switching and interruption apparatus of claim 9, comprising: - a first spring contact (80a) being arranged in the opening (11) of the first electrical conductor (10), and - a second spring contact (80b) being arranged in the opening (12) of the second electrical conductor (20).
11. The pyrotechnic switching and interruption apparatus of claim 10, wherein the insulator (60) has at least one cavity (62a, 62b) disposed in the insulator (60) next to the channel (61) of the insulator so that the channel (61) and the at least one cavity (62a, 62b) of the insulator (60) are seperated from each other by a narrow material web (63a, 63b) of the insulator (60).
12. The pyrotechnic switching and interruption apparatus of any of the claims 1 to 11, comprising: a catching element (90) being configured to lock the conductive rod (30) in the position at which the current conduction path between the first and second electrical conductor (10, 20) is interrupted, when the apparatus (1) is operated in the second operation state.
13. The pyrotechnic switching and interruption apparatus of any of the claims 1 to 12, - wherein the conductive rod (30) is fixed to at least one of the first and second electrical conductor (10, 20) in a fixing position by a fixation mechanism (100), when the apparatus (1) is operated in the first operation state, - wherein the fixation mechanism (100) is configured such that the conductive rod (30) is knocked out of the fixing position by the piston (40), when the pyrotechnic actuator (50) is ignited to exert the force onto the piston (40).
GB2202798.1A 2019-09-05 2020-09-04 Pyrotechnic switching and interruption apparatus Pending GB2601686A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1912775.2A GB201912775D0 (en) 2019-09-05 2019-09-05 Pyrotechnic switching and interruption apparatus
PCT/EP2020/074724 WO2021043958A1 (en) 2019-09-05 2020-09-04 Pyrotechnic switching and interruption apparatus

Publications (2)

Publication Number Publication Date
GB202202798D0 GB202202798D0 (en) 2022-04-13
GB2601686A true GB2601686A (en) 2022-06-08

Family

ID=68241173

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB1912775.2A Ceased GB201912775D0 (en) 2019-09-05 2019-09-05 Pyrotechnic switching and interruption apparatus
GB2202798.1A Pending GB2601686A (en) 2019-09-05 2020-09-04 Pyrotechnic switching and interruption apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB1912775.2A Ceased GB201912775D0 (en) 2019-09-05 2019-09-05 Pyrotechnic switching and interruption apparatus

Country Status (2)

Country Link
GB (2) GB201912775D0 (en)
WO (1) WO2021043958A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4691085A (en) * 1985-12-19 1987-09-01 S&C Electric Company High voltage interrupting switch with improved contact connection arrangement and method
DE19712387A1 (en) * 1996-04-27 1997-10-30 Dynamit Nobel Ag Pyrotechnic switching element for electrical circuits
DE102015203646A1 (en) * 2015-03-02 2016-09-08 Siemens Aktiengesellschaft Electric short-circuiting device
US20170229267A1 (en) * 2014-07-30 2017-08-10 Peter Lell Electric Switch, In Particular for High Voltages and/or High Currents

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4691085A (en) * 1985-12-19 1987-09-01 S&C Electric Company High voltage interrupting switch with improved contact connection arrangement and method
DE19712387A1 (en) * 1996-04-27 1997-10-30 Dynamit Nobel Ag Pyrotechnic switching element for electrical circuits
US20170229267A1 (en) * 2014-07-30 2017-08-10 Peter Lell Electric Switch, In Particular for High Voltages and/or High Currents
DE102015203646A1 (en) * 2015-03-02 2016-09-08 Siemens Aktiengesellschaft Electric short-circuiting device

Also Published As

Publication number Publication date
WO2021043958A1 (en) 2021-03-11
GB201912775D0 (en) 2019-10-23
GB202202798D0 (en) 2022-04-13

Similar Documents

Publication Publication Date Title
US8193464B2 (en) Micro switch
US20160071677A1 (en) Electric Switching Device with Enhanced Lorentz Force Bias
KR20160081570A (en) operation device using electromagnetic repulsion force for circuit breaker
US11742165B2 (en) Switching device for guiding and switching of load currents
US20180294115A1 (en) Vacuum interrupter and driving method therefor
GB2601686A (en) Pyrotechnic switching and interruption apparatus
YU47186B (en) ELECTRICAL POWER SWITCH WITH SELF-EXPANSION AND TURNING ARM
US3064104A (en) Electrical interlock
DE69719401D1 (en) High voltage switch with on-resistance
GB541235A (en) Improvements in or relating to a.c. electric circuit-breakers having arc-control devices
CN109416993B (en) Switch with arc extinguishing device
US2956140A (en) Electromagnetic relay spring assembly
GB2150352A (en) Circuit breaker assembly
US1827430A (en) Electric switch and contact structure
CN209822486U (en) On-off mechanism of quick switch and quick switch
CN210156336U (en) Isolated contact mechanism for circuit breaker
US2250016A (en) Magnetic blowout
US1799720A (en) Switch with magnetic blow-outs
US10043622B1 (en) Gas-insulated switch gear using dual motion with multi-lever
KR101650925B1 (en) Vacuum interupter for a vacuum circuit breaker
US2508381A (en) Snap acting contactor
US2302849A (en) Switch
RU2367049C1 (en) Vacuum contactor
US705102A (en) Electric-circuit breaker.
EP3073501B1 (en) Multipole lineal switch