GB1365104A - Bistable electric switch - Google Patents
Bistable electric switchInfo
- Publication number
- GB1365104A GB1365104A GB3965171A GB3965171A GB1365104A GB 1365104 A GB1365104 A GB 1365104A GB 3965171 A GB3965171 A GB 3965171A GB 3965171 A GB3965171 A GB 3965171A GB 1365104 A GB1365104 A GB 1365104A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnet
- armature
- contacts
- polepiece
- spring
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/02—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by movement of a float carrying a magnet
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/56—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Soil Working Implements (AREA)
Abstract
1365104 Magnetic switches DANFOSS AS 24 Aug 1971 [31 Aug 1970] 39651/71 Heading H1N A bi-stable electric switch 1 includes a permanent bar magnet 16 pivoted at 17 with polepieces 19, 23 adjacent its ends, each stable position being when an end of the magnet 16 is adjacent its corresponding polepiece 19, 23, and an armature 13 carrying a moving contact 14, there being an air gap 26 between polepiece 19 and armature 13 so that with zero air gap as shown contacts 14, 10 are closed and as magnet 16 pivots anti-clockwise (under the action of a second permanent magnet 2 attached to a float) the force between polepiece 19 and armature 13 first decreases and then becomes repulsive, opening the contacts. Also assisting in opening the contacts is spring 12 carrying armature 13, spring 12 being biased to the contacts open position and the fact that as magnet 16 pivots anticlockwise its end strikes spring 12.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2043042A DE2043042C3 (en) | 1970-08-31 | 1970-08-31 | Magnetic field operated bistable electrical switch |
US19632171A | 1971-11-08 | 1971-11-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1365104A true GB1365104A (en) | 1974-08-29 |
Family
ID=25759654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3965171A Expired GB1365104A (en) | 1970-08-31 | 1971-08-24 | Bistable electric switch |
Country Status (4)
Country | Link |
---|---|
US (1) | US3729697A (en) |
DE (1) | DE2043042C3 (en) |
DK (1) | DK136680C (en) |
GB (1) | GB1365104A (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1140214B (en) * | 1981-10-02 | 1986-09-24 | Bonetti Cesare Spa | MAGNETIC SENSOR LEVEL INDICATOR FOR BOILERS, CONTAINERS, TANKS AND SIMILAR |
US4865073A (en) * | 1987-09-14 | 1989-09-12 | Vilter Manufacturing Corporation | Liquid level control for refrigeration system |
DE29500362U1 (en) * | 1995-01-11 | 1995-02-23 | ELB-Füllstandsgeräte Bundschuh GmbH + Co, 64625 Bensheim | Bistable switch arrangement |
US20100102906A1 (en) * | 2007-02-06 | 2010-04-29 | Polycontact Ag | Magnetically operated switch |
WO2011109235A1 (en) * | 2010-03-01 | 2011-09-09 | Illinois Tool Works Inc. | Lid lock with magnetic anti-tamper feature |
TWI422751B (en) * | 2011-08-11 | 2014-01-11 | Wistron Corp | Magnetic switch device and electronic device having the same |
CN103873041A (en) * | 2012-12-12 | 2014-06-18 | 富泰华工业(深圳)有限公司 | Magnetic induction switch and electronic device with magnetic induction switch |
CN107564765B (en) * | 2017-08-25 | 2018-12-28 | 中国电子科技集团公司第四十九研究所 | A kind of floating-ball level switch resilient contact |
CN112263907B (en) * | 2020-09-28 | 2022-07-29 | 山东派尼新材料股份有限公司 | Energy-concerving and environment-protective type chemical waste gas sprays equipment |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2671834A (en) * | 1952-01-23 | 1954-03-09 | Mcdonnell & Miller Inc | Level controlled switch mechanism |
GB881972A (en) * | 1959-06-12 | 1961-11-08 | Atomic Energy Authority Uk | Improvements in or relating to position indicating devices |
-
1970
- 1970-08-31 DE DE2043042A patent/DE2043042C3/en not_active Expired
-
1971
- 1971-08-24 GB GB3965171A patent/GB1365104A/en not_active Expired
- 1971-08-30 DK DK423471A patent/DK136680C/en active
- 1971-11-08 US US00196321A patent/US3729697A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DK136680C (en) | 1978-04-10 |
DK136680B (en) | 1977-11-07 |
US3729697A (en) | 1973-04-24 |
DE2043042B2 (en) | 1973-03-01 |
DE2043042A1 (en) | 1972-03-09 |
DE2043042C3 (en) | 1973-09-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |