GB583331A - Improvements in electric snap-action switches - Google Patents
Improvements in electric snap-action switchesInfo
- Publication number
- GB583331A GB583331A GB2017044A GB2017044A GB583331A GB 583331 A GB583331 A GB 583331A GB 2017044 A GB2017044 A GB 2017044A GB 2017044 A GB2017044 A GB 2017044A GB 583331 A GB583331 A GB 583331A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arm
- magnet
- contact
- cam
- 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
- 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
Landscapes
- Mechanisms For Operating Contacts (AREA)
Abstract
583,331. Electric motor controllers and switches. GRAY, W. T., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. Oct. 18, 1944, No. 20170. [Classes 38 (iii) and 38 (v)] In a snap-actioh switch, specially for use in traction controllers, movement of an operating member such as a cam 16 causes an electromagnet 15 to be energised to hold a contact arm 3 fast while a spring 11 is being strained; further movement de-energises or reverses the energisation of the electro-magnet allowing the arm 3 to move into its other position. In the form shown, the arm 3 is pivoted at 4 and carries an armature 5 which moves between the poles 6, 7 of the electro-magnet under the action of a spring-loaded pin 10 on a cam-actuated operating-arm 9 carrying an arcuate contact 13 co-operating with a contact 14 to 'energise the magnet 8. In the closing movement, the pin 10 presses on the contact arm and simultaneously contacts 13, 14, energise the magnet and hold the armature 5 against the arm 6. When the contact 13 moves past the fixed contact, the magnet is de-energised, thus allowing the contact arm to move by the action' of the pin 10. The opening movement of the cam 16 first remakes contacts 13, 14, thus energising the magnet and holding the armature against the arm 7, and then breaks this circuit to allow motion of the contact arm under the action of a " throw-off " spring 18. In a modified form the spring-loaded pin 10 may be mounted on the contact arm 3 and directly operated by the cam whilst an auxiliary switch may be used to control the electro-magnet. A modified form of electromagnet may be used, Figs. 2 and 3 (not shown).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2017044A GB583331A (en) | 1944-10-18 | 1944-10-18 | Improvements in electric snap-action switches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2017044A GB583331A (en) | 1944-10-18 | 1944-10-18 | Improvements in electric snap-action switches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB583331A true GB583331A (en) | 1946-12-16 |
Family
ID=10141542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2017044A Expired GB583331A (en) | 1944-10-18 | 1944-10-18 | Improvements in electric snap-action switches |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB583331A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109962997A (en) * | 2017-12-14 | 2019-07-02 | 广东欧珀移动通信有限公司 | Functional unit, electronic device and its control method |
-
1944
- 1944-10-18 GB GB2017044A patent/GB583331A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109962997A (en) * | 2017-12-14 | 2019-07-02 | 广东欧珀移动通信有限公司 | Functional unit, electronic device and its control method |
CN109962997B (en) * | 2017-12-14 | 2020-11-24 | Oppo广东移动通信有限公司 | Functional assembly, electronic device and control method thereof |
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