GB1031782A - Improvements relating to magnetic switching devices - Google Patents
Improvements relating to magnetic switching devicesInfo
- Publication number
- GB1031782A GB1031782A GB201863A GB201863A GB1031782A GB 1031782 A GB1031782 A GB 1031782A GB 201863 A GB201863 A GB 201863A GB 201863 A GB201863 A GB 201863A GB 1031782 A GB1031782 A GB 1031782A
- Authority
- GB
- United Kingdom
- Prior art keywords
- permanent magnet
- unit
- contacts
- contact unit
- normally closed
- 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
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 abstract 3
- 230000004907 flux Effects 0.000 abstract 2
- 230000037431 insertion Effects 0.000 abstract 2
- 238000003780 insertion Methods 0.000 abstract 2
- 238000004804 winding Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/46—Adaptations of switches or switchgear
- B66B1/50—Adaptations of switches or switchgear with operating or control mechanisms mounted in the car or cage or in the lift well or hoistway
-
- 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
- H01H36/0006—Permanent magnet actuating reed switches
- H01H36/0013—Permanent magnet actuating reed switches characterised by the co-operation between reed switch and permanent magnet; Magnetic circuits
- H01H36/002—Actuation by moving ferromagnetic material, switch and magnet being fixed
-
- 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
- H01H36/008—Change of magnetic field wherein the magnet and switch are fixed, e.g. by shielding or relative movements of armature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
- H01H47/04—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/28—Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed
- H01H51/281—Mounting of the relay; Encapsulating; Details of connections
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Keying Circuit Devices (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
1,031,782. Magnetic switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 9, 1964 [Jan. 16, 1963], No. 2018/63. Heading H2B. The object of the invention is to reduce the operating differential of a magnetic switch actuated by the movement of a flux diverting member. As shown, a sealed magnetic contact unit 3 is normally closed by a permanent magnet 4 and is opened by the insertion of a flux diverting member 5 between the unit 3 and permanent magnet 4. Opening of the contacts de-energizes a relay 9 with normally closed contacts 8 so that a coil 6 surrounding the unit is energized through a variable resistor 7 to a level just insufficient to reclose the contact unit 3. The coil 6 acts in the same sense as permanent magnet 4 so that the unit 3 is reclosed after the member 5 has been removed a shorter distance than would otherwise be necessary. In Fig. 3 (not shown) the permanent magnet is replaced by an electromagnet whose operating winding is in series with a variable resistor shunted by normally closed contacts of a delay 9. On insertion of member 5 the contact unit opens, de-energizing the relay 9 and causing its contacts to close short-circuiting the variable resistance and thereby increasing the current through the electromagnet. The contact unit therefore recloses in a shorter withdrawal distance.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB201863A GB1031782A (en) | 1963-01-01 | 1963-01-01 | Improvements relating to magnetic switching devices |
| FR960591A FR1384272A (en) | 1963-01-01 | 1964-01-16 | Magnetic switching devices |
| FR58309A FR1498309A (en) | 1963-01-01 | 1966-04-20 | Proximity switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB201863A GB1031782A (en) | 1963-01-01 | 1963-01-01 | Improvements relating to magnetic switching devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1031782A true GB1031782A (en) | 1966-06-02 |
Family
ID=9732146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB201863A Expired GB1031782A (en) | 1963-01-01 | 1963-01-01 | Improvements relating to magnetic switching devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1031782A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002004770A1 (en) * | 2000-07-12 | 2002-01-17 | Abloy Oy | Detector arrangement |
| EP2038197A4 (en) * | 2006-07-11 | 2013-07-24 | Mitsubishi Electric Corp | POSITION DETECTING DEVICE, POSITION DETECTING DEVICE FOR ELEVATOR, AND ELEVATOR APPARATUS |
-
1963
- 1963-01-01 GB GB201863A patent/GB1031782A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002004770A1 (en) * | 2000-07-12 | 2002-01-17 | Abloy Oy | Detector arrangement |
| EP2038197A4 (en) * | 2006-07-11 | 2013-07-24 | Mitsubishi Electric Corp | POSITION DETECTING DEVICE, POSITION DETECTING DEVICE FOR ELEVATOR, AND ELEVATOR APPARATUS |
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