WO2000046827A1 - Commutateur a point mort - Google Patents

Commutateur a point mort Download PDF

Info

Publication number
WO2000046827A1
WO2000046827A1 PCT/DE2000/000196 DE0000196W WO0046827A1 WO 2000046827 A1 WO2000046827 A1 WO 2000046827A1 DE 0000196 W DE0000196 W DE 0000196W WO 0046827 A1 WO0046827 A1 WO 0046827A1
Authority
WO
WIPO (PCT)
Prior art keywords
dead center
center switch
rocker
bearing
tension spring
Prior art date
Application number
PCT/DE2000/000196
Other languages
German (de)
English (en)
Inventor
Willy Sabisch
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to EP00906165A priority Critical patent/EP1151453B1/fr
Priority to DE50000416T priority patent/DE50000416D1/de
Publication of WO2000046827A1 publication Critical patent/WO2000046827A1/fr

Links

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
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7427—Adjusting only the electrothermal mechanism
    • 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
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs

Definitions

  • the invention relates to a dead center switch with a rocker mounted in a bearing and pivotable between two stops, which is pressed into the bearing, with a dead center existing between the two stops of the rocker.
  • a generic dead center switch is shown in Figure 2.
  • a rocker 1 is pressed via a tension spring 2 into a cutting edge bearing 3.
  • a contact load F is generated via the lever ratio a to b.
  • a bimetal 8 deflects and actuates a deflection lever 4, which shifts the tension spring 2 until the lever arm "a" becomes negative and thus the rocker
  • the tension spring 2 passes through the support of the cutting edge of the rocker 1 in the cutting edge bearing 3, i.e. the force of the tension spring 2 acting on the rocker 1 has no component pivoting the rocker 1.
  • the tension spring is set with an adjusting screw 6
  • Such a dead center switch which on the one hand has an adjusting screw for setting the trigger point and an adjusting screw which serves to adjust the position of a dead center spring, can be found in EP 0 017 813 B1. The adjustment process takes place in two steps.
  • the invention has for its object to provide a dead center switch of the type mentioned with the least possible adjustment effort.
  • the object is achieved in that the bearing is slidable, whereby the position of the dead center can be changed.
  • This embodiment according to the invention has the advantage that one can make do with an adjustment process. According to the invention, the position of the tension spring would always remain the same in the known embodiment, so that an adjustment between the actual triggering mechanism of the dead center switch and the tension spring is unnecessary.
  • FIG. 1 shows a dead center switch with a rocker 1 which can be pivoted as stops in a bearing, in particular a cutting edge bearing 3, between two contact positions and which is pressed into the cutting edge bearing 3 by a tension spring 2.
  • the deflection according to arrow x of a bimetallic release 8 has the consequence that the tension spring 2 is acted upon by a deflection lever 4 with a deflection force Fl and thereby actuates the rocker 1.
  • the dead center switch according to the invention is designed with a displaceable cutting edge bearing 3, for which two possible positions are shown in FIG. 1.
  • This shift makes it possible to change the position of the dead center at which the force of the tension spring 2 acting on the rocker 1 does not have a component pivoting the rocker 1.
  • the position of the tension spring 2 always remains the same and the position of the bell crank 4 is therefore unchanged before and after the adjustment process. It is therefore unnecessary to provide a further adjustment between the bimetallic release 8 and the bell crank 4 as in the prior art.

Landscapes

  • Thermally Actuated Switches (AREA)
  • Transmission Devices (AREA)
  • Springs (AREA)

Abstract

L'invention concerne un commutateur à point mort qui comporte un basculeur (1) monté dans un couteau de répartition (3), qui peut osciller entre deux positions de contact, grâce à un ressort de traction (2). Le couteau de répartition (3) est mobile, ce qui permet le changement de position du point mort se trouvant entre les positions de contact.
PCT/DE2000/000196 1999-02-04 2000-01-24 Commutateur a point mort WO2000046827A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP00906165A EP1151453B1 (fr) 1999-02-04 2000-01-24 Commutateur a point mort
DE50000416T DE50000416D1 (de) 1999-02-04 2000-01-24 Totpunktschalter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999104539 DE19904539C2 (de) 1999-02-04 1999-02-04 Totpunktschalter
DE19904539.9 1999-02-04

Publications (1)

Publication Number Publication Date
WO2000046827A1 true WO2000046827A1 (fr) 2000-08-10

Family

ID=7896437

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/000196 WO2000046827A1 (fr) 1999-02-04 2000-01-24 Commutateur a point mort

Country Status (4)

Country Link
EP (1) EP1151453B1 (fr)
CN (1) CN1165935C (fr)
DE (2) DE19904539C2 (fr)
WO (1) WO2000046827A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19904539C2 (de) * 1999-02-04 2002-02-07 Siemens Ag Totpunktschalter

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1916956A1 (de) * 1969-04-02 1970-10-15 Bosch Hausgeraete Gmbh Elektrischer Schnappschalter
DE1955874A1 (de) * 1969-11-06 1971-05-19 Merk Gmbh Telefonbau Fried Schnappschalter
EP0017813A1 (fr) * 1979-04-11 1980-10-29 Siemens Aktiengesellschaft Déclencheur pour un relais de protection thermique
DE3223479A1 (de) * 1982-06-23 1983-12-29 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Thermostat-schnappfederschalter, insbesondere fuer temperaturregler in backoefen
DE9211138U1 (de) * 1992-08-20 1993-02-04 Klöckner-Moeller GmbH, 5300 Bonn Schaltvorrichtung
DE9414228U1 (de) * 1994-09-02 1996-01-11 Klöckner-Moeller GmbH, 53115 Bonn Elektrischer Schnappschalter
DE19904539C1 (de) * 1999-02-04 2000-03-09 Siemens Ag Totpunktschalter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5942927B2 (ja) * 1977-12-29 1984-10-18 富士電機株式会社 熱動形過負荷継電器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1916956A1 (de) * 1969-04-02 1970-10-15 Bosch Hausgeraete Gmbh Elektrischer Schnappschalter
DE1955874A1 (de) * 1969-11-06 1971-05-19 Merk Gmbh Telefonbau Fried Schnappschalter
EP0017813A1 (fr) * 1979-04-11 1980-10-29 Siemens Aktiengesellschaft Déclencheur pour un relais de protection thermique
DE3223479A1 (de) * 1982-06-23 1983-12-29 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Thermostat-schnappfederschalter, insbesondere fuer temperaturregler in backoefen
DE9211138U1 (de) * 1992-08-20 1993-02-04 Klöckner-Moeller GmbH, 5300 Bonn Schaltvorrichtung
DE9414228U1 (de) * 1994-09-02 1996-01-11 Klöckner-Moeller GmbH, 53115 Bonn Elektrischer Schnappschalter
DE19904539C1 (de) * 1999-02-04 2000-03-09 Siemens Ag Totpunktschalter

Also Published As

Publication number Publication date
EP1151453B1 (fr) 2002-08-28
EP1151453A1 (fr) 2001-11-07
CN1339169A (zh) 2002-03-06
DE19904539C1 (de) 2000-03-09
DE19904539C2 (de) 2002-02-07
DE50000416D1 (de) 2002-10-02
CN1165935C (zh) 2004-09-08

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