GB1136888A - A bimetal switch tripping device - Google Patents
A bimetal switch tripping deviceInfo
- Publication number
- GB1136888A GB1136888A GB17759/67A GB1775967A GB1136888A GB 1136888 A GB1136888 A GB 1136888A GB 17759/67 A GB17759/67 A GB 17759/67A GB 1775967 A GB1775967 A GB 1775967A GB 1136888 A GB1136888 A GB 1136888A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plane
- slide
- stop
- switch
- compensatory
- 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
- 229910052751 metal Inorganic materials 0.000 abstract 5
- 230000001447 compensatory effect Effects 0.000 abstract 3
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
- H01H71/16—Electrothermal mechanisms with bimetal element
- H01H71/162—Electrothermal mechanisms with bimetal element with compensation for ambient temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
- H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
- H01H83/223—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with bimetal elements
Landscapes
- Thermally Actuated Switches (AREA)
- Breakers (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
1,136,888. Thermal switches. DANFOSS A.S. 18 April, 1967 [29 April, 1966], No. 17759/67. Heading H1N. [Also in Division G1] A bi-metal operating device for a switch 14 comprises operating means constrained for displacement by at least one bi-metallic element in a first plane and an ambient temperature compensatory bi-metallic element 16 displaceable in a second plane normal to the first plane, the operating means having an edge 23 adapted to engage the compensatory bi-metallic element. As shown, in an overload relay, three bi-metallic elements 2, 3, 4 are connected to terminals 5, 6, 7 of a three phase mains network and the operating means comprises slides 8, 9 which actuate a pivoted rocker arm 10. Movement of any one or all of the elements 2-4 displaces the slide 8 which therefore causes the rocker arm to pivot about the point 12 and operate the switch 14. The element 16 is U-shaped and has a stop 15 which engages the inclined edge 23 of the slide 9. The position of the stop is adjustable in the plane of movement of the slide by a screw 18 and in a direction normal to this plane by a pointer 20, the element 16 pivoting about the screw. Movement of the stop therefore adjusts the position of the slide 9 and the excess current necessary to operate the switch is given by the position of the pointer on a scale 21. In a modification (Fig. 4, not shown) for a single phase excess current responsive device, the inclined edge is formed on the rocker arm and a straight compensatory bi-matallic element is incorporated.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED0049984 | 1966-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1136888A true GB1136888A (en) | 1968-12-18 |
Family
ID=7052305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17759/67A Expired GB1136888A (en) | 1966-04-29 | 1967-04-18 | A bimetal switch tripping device |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3470516A (en) |
| AT (1) | AT266250B (en) |
| BE (1) | BE697765A (en) |
| CH (1) | CH449743A (en) |
| DE (1) | DE1538425A1 (en) |
| DK (1) | DK130439B (en) |
| GB (1) | GB1136888A (en) |
| NL (1) | NL155123B (en) |
| NO (1) | NO126153B (en) |
| SE (1) | SE329431B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3659242A (en) * | 1970-02-04 | 1972-04-25 | Hoagland Instr Co | Overcurrent responsive device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4488138A (en) * | 1982-10-26 | 1984-12-11 | Braathen Thor F | Three-stage temperature switch, preferably for a hot water heater |
| US4806897A (en) * | 1987-12-17 | 1989-02-21 | Eaton Corporation | Overload relay having adaptive differential mechanism |
| DE4308539B4 (en) * | 1993-03-17 | 2006-01-26 | Condor-Werk Gebr. Frede Gmbh & Co Kg Elektro- Und Maschinenfabrik | Device for transmitting the movement of a bimetallic element |
| KR101981595B1 (en) * | 2015-03-31 | 2019-05-23 | 현대일렉트릭앤에너지시스템(주) | Trip device of molded-case circuit breaker |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB846937A (en) * | 1957-09-16 | 1960-09-07 | Crabtree & Co Ltd J A | Improvements in thermal overload protection devices for motor starting switches |
| US2878344A (en) * | 1957-11-27 | 1959-03-17 | Gen Electric | Thermal responsive switching device |
| GB1039192A (en) * | 1964-03-16 | 1966-08-17 | Crabtree & Co Ltd J A | Improvements in and connected with thermal overload devices for contactor-operated motor starters |
-
1966
- 1966-04-29 DE DE19661538425 patent/DE1538425A1/en active Pending
-
1967
- 1967-04-10 AT AT339967A patent/AT266250B/en active
- 1967-04-13 CH CH536267A patent/CH449743A/en unknown
- 1967-04-18 GB GB17759/67A patent/GB1136888A/en not_active Expired
- 1967-04-25 SE SE05822/67A patent/SE329431B/xx unknown
- 1967-04-27 BE BE697765D patent/BE697765A/xx not_active Expired
- 1967-04-28 DK DK226167AA patent/DK130439B/en not_active IP Right Cessation
- 1967-04-28 US US634520A patent/US3470516A/en not_active Expired - Lifetime
- 1967-04-28 NO NO167936A patent/NO126153B/no unknown
- 1967-04-28 NL NL676706079A patent/NL155123B/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3659242A (en) * | 1970-02-04 | 1972-04-25 | Hoagland Instr Co | Overcurrent responsive device |
Also Published As
| Publication number | Publication date |
|---|---|
| DK130439B (en) | 1975-02-17 |
| DK130439C (en) | 1975-07-14 |
| SE329431B (en) | 1970-10-12 |
| NO126153B (en) | 1972-12-27 |
| DE1538425B2 (en) | 1970-09-10 |
| NL6706079A (en) | 1967-10-30 |
| BE697765A (en) | 1967-10-27 |
| CH449743A (en) | 1968-01-15 |
| NL155123B (en) | 1977-11-15 |
| US3470516A (en) | 1969-09-30 |
| AT266250B (en) | 1968-11-11 |
| DE1538425A1 (en) | 1969-11-06 |
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