GB685332A - Improvements in magnetic snap action electrical switches - Google Patents
Improvements in magnetic snap action electrical switchesInfo
- Publication number
- GB685332A GB685332A GB2135950A GB2135950A GB685332A GB 685332 A GB685332 A GB 685332A GB 2135950 A GB2135950 A GB 2135950A GB 2135950 A GB2135950 A GB 2135950A GB 685332 A GB685332 A GB 685332A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- blades
- switch
- aug
- magnet
- 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
- 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
- H01H13/04—Cases; Covers
- H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
- H01H13/063—Casings hermetically closed by a diaphragm through which passes an actuating member
-
- 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
- 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
- H01H13/04—Cases; Covers
- H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
- H01H2013/066—Dustproof, splashproof, drip-proof, waterproof or flameproof casings using bellows
Landscapes
- Switches With Compound Operations (AREA)
Abstract
685,332. Retractive switches; switches, partly electromagnetic. DOWTY EQUIPMENT, Ltd. Aug. 29, 1951 [Aug. 29, 1950], No. 21359/50. Class 38 (v) [Also in Group XXXVI] In a switch having magnetic snap-action, the contact pressure is increased upon the application of an operating force until the magnetic attraction is overcome and the contacts open. Movable contacts 10<SP>1</SP>, 111 are mounted in pairs on blades fixed to a member 6 pivoted at 7 and urged upwards by spring blades 26 connected to the contacts and engaging terminal strips 27. The contact blades are clamped between insulating members 21, 21<SP>1</SP> which carry a U-shaped armature 20 co-operating with cylindrical magnets 18, 19, the upper one, 18, holding the parts in the position shown. Depression of a telescopic plunger 37 rotates the member 6 counter-clockwise, thereby bowing the contact blades between the magnets and the member 6. This causes the armature to rock slightly on magnet 18 to increase the contact pressure. The contacts are held by magnet 19 after they snap over until the blades 26 restore them on release of the plunger 37. The switch body is rendered waterproof by a rubber bellows 35 and a sealing ring 50. The fixed contacts are connected to socket contacts of the type described in Specification 685,150, [Group XXXVI]. The Provisional Specification refers to operation of the switch by the retractable undercarriage of an aircraft.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2135950A GB685332A (en) | 1950-08-29 | 1950-08-29 | Improvements in magnetic snap action electrical switches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2135950A GB685332A (en) | 1950-08-29 | 1950-08-29 | Improvements in magnetic snap action electrical switches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB685332A true GB685332A (en) | 1952-12-31 |
Family
ID=10161576
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2135950A Expired GB685332A (en) | 1950-08-29 | 1950-08-29 | Improvements in magnetic snap action electrical switches |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB685332A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1139175B (en) * | 1961-02-08 | 1962-11-08 | Weyer & Zander K G | Electric push button switch, especially for control purposes, with connection terminals arranged on one side |
DE3033241A1 (en) * | 1980-09-04 | 1982-04-08 | Elan-Schaltelemente Kurt Maecker Gmbh, 4040 Neuss | Plunger type limit switch - has compressed compression spring positioned around plunger support pin |
DE3513803A1 (en) * | 1985-04-17 | 1986-10-23 | Leopold Kostal GmbH & Co KG, 5880 Lüdenscheid | Electrical switch |
CN111668048A (en) * | 2020-06-18 | 2020-09-15 | 贵州航天电器股份有限公司 | Micro switch |
-
1950
- 1950-08-29 GB GB2135950A patent/GB685332A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1139175B (en) * | 1961-02-08 | 1962-11-08 | Weyer & Zander K G | Electric push button switch, especially for control purposes, with connection terminals arranged on one side |
DE3033241A1 (en) * | 1980-09-04 | 1982-04-08 | Elan-Schaltelemente Kurt Maecker Gmbh, 4040 Neuss | Plunger type limit switch - has compressed compression spring positioned around plunger support pin |
DE3513803A1 (en) * | 1985-04-17 | 1986-10-23 | Leopold Kostal GmbH & Co KG, 5880 Lüdenscheid | Electrical switch |
CN111668048A (en) * | 2020-06-18 | 2020-09-15 | 贵州航天电器股份有限公司 | Micro switch |
CN111668048B (en) * | 2020-06-18 | 2022-08-23 | 贵州航天电器股份有限公司 | Micro switch |
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