EP1439558A1 - Arrangement des contacts pour un interrupteur électrique - Google Patents

Arrangement des contacts pour un interrupteur électrique Download PDF

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Publication number
EP1439558A1
EP1439558A1 EP03000985A EP03000985A EP1439558A1 EP 1439558 A1 EP1439558 A1 EP 1439558A1 EP 03000985 A EP03000985 A EP 03000985A EP 03000985 A EP03000985 A EP 03000985A EP 1439558 A1 EP1439558 A1 EP 1439558A1
Authority
EP
European Patent Office
Prior art keywords
contact
arrangement according
arrangement
area
switching
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.)
Granted
Application number
EP03000985A
Other languages
German (de)
English (en)
Other versions
EP1439558B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jean Mueller Elektrotechnische Fabrik GmbH
Original Assignee
Jean Mueller Elektrotechnische Fabrik GmbH
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 Jean Mueller Elektrotechnische Fabrik GmbH filed Critical Jean Mueller Elektrotechnische Fabrik GmbH
Publication of EP1439558A1 publication Critical patent/EP1439558A1/fr
Application granted granted Critical
Publication of EP1439558B1 publication Critical patent/EP1439558B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/10—Adaptation for built-in fuses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/38—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/365—Bridging contacts

Definitions

  • the invention relates to a contact arrangement for an electrical switching device, in particular a low-voltage switch, with an actuator for recording one contact and another stationary one assigned to this contact Contact.
  • Contact systems for such requirements usually consist of one Arrangement of contacts in which the contact surfaces are essentially vertical are arranged to the direction of movement. This affects orders with two fixed contacts and a bridge contact or arrangements with one Fixed contact in combination with a rotatable movable contact piece, that on the side facing away from the contact via strands or via conductive Bearing elements is contacted.
  • a contact arrangement of the type mentioned is, for example, from the EP 0 496 213 A1 is known. There is a steady contact on both sides of in different linear, movable actuators spring-loaded contacts applied. Both the fixed contact and the moving contacts are plate-shaped. The contact area in which the switching of the Contact takes place, simultaneously provides the current-carrying after switching Area represents. This contact arrangement thus has the previously described Disadvantages.
  • a contact arrangement of the type mentioned is also from DE 30 10 579 A1 known. Also there act on opposite sides of a stationary one Contact movable contacts with this together. However, the Do not make contact by moving the movable plates perpendicular to the plate plane be moved in the direction of the stationary contact, but in the plane of the plate. With this contact arrangement, too, there is no separation of a switching area and a current-carrying area of the contacts.
  • this does not affect a contact arrangement using an actuator to accommodate a consequent movable contact for the purpose of contacting another, stationary contact, but a contact body for receiving a contact knife Fuse link.
  • This contact body has one when inserting the Fuse insert in the slot of the contact body leading area, which has the function of a switch contact, as well as a this area lagging area, which has the function of a permanent contact.
  • the permanent contact takes place in the front areas of the contact body plate.
  • the object of the invention is a contact arrangement of the aforementioned To create type that has easy to manufacture elements, the inevitable Arc erosion of the switching processes the current carrying capacity or the contact resistance of the closed contact arrangement is not negative impaired.
  • the contact arrangement should also, without special contact requirements, offer high reliability (low heating) when carrying current.
  • the problem is solved with a contact arrangement in the aforementioned Kind in that the contact arrangement has two areas, the switching and current carrying functions are clearly assigned, whereby the Switching area of an end face of a contact and a counter surface of the is assigned to other contact, and the current carrying area is wedge-shaped arranged surfaces of one contact and counter surfaces of the other Contact, which are arranged in a corresponding wedge shape, is assigned.
  • the switching work on the End face of a contact is provided while the current is flowing closed contacts via the contact flanks, which are wedge-shaped are arranged.
  • the wedge shape leads to a strong increase in force on the Contact area, with relatively low forces for operating the system, specifically of the actuator. Wear problems are not expected because hardly any Arc erosion occurs at these contact surfaces. So it does not occur Disadvantage as with parallel contacting with safety knives; there leave strong fluctuations in the coefficient of friction of the contact arrangement the power requirement a switching mechanism does not calculate safely.
  • the contact arrangement according to the invention can be used in different systems be realized. So there is the possibility of the contact arrangement as Bridge contact arrangement with two identical stationary contacts train. Multi-pole contact arrangements are conceivable, with these the stationary contacts preferably in a common control part are stored.
  • the actuator is particularly straight adjustable and consequently designed as a slide. It is also conceivable to turn the control part store, so that the switching of the contact arrangement is not by a straight line Movement, but a rotary movement of the actuator is brought about.
  • the movable contact a trapezoidal cross-section or a trapezoidal outer contour. He thus presents itself as a trapezoidal contact.
  • the contact is advantageously resilient in the Control part stored. Through this spring this contact is made against the other, stationary contact pressed for current supply.
  • the movable contact preferably formed as a solid body it is considered advantageous with regard to stationary contact if it is designed as a plate body. Because of this design, this can Contact can be bent and punched as desired, especially around the side Plate areas and a central, bent out of the plate level Form plate area.
  • the facing end faces of the side Plate areas are arranged in a wedge shape and form the current-carrying areas Mating surfaces of this contact while the plate area is bent out is designed in the manner of a rag, which is the button counter surface of this Forms contact.
  • the bent tab is on the side facing away from the contact area Side preferably loaded by force, for example by being one-sided supported leaf spring abuts a housing projection of the switching device and so the flexibility of the switch flap when inserting the movable Limited contact in the switching range.
  • the switching takes place under a bias, that is, a sufficiently high contact force between the Rag of the stationary contact and the counter surface of the movable Contact.
  • FIGS 3 referred to the essential parts of the switching device 1 in the area of a fuse link 2 for the switching state "off".
  • the representation in Figures 2 and 3 is for reasons of 1 shows the more precise representation of the components relevant to the invention Housing 3 of the switching device 1 is not illustrated.
  • a slide 4 is horizontally displaceable stored in the housing 3, which consists of various horizontal and vertical Wall sections is formed. Its longitudinal axis is designated by reference number 5.
  • the slider 4 is in the area of interest of the switching device 1 with two passes 6 provided that push the slider 4 vertically. Every run 6 forms two areas 7 and 8.
  • the area 7, viewed vertically, has one trapezoidal cross-section, while the area 8 a rectangular Cross section.
  • a contact 9 is mounted in the respective passage 6. It penetrates the area 7 of the passage 6 and has one of the trapezoidal shape of the area 7 adapted trapezoidal cross-section.
  • the respective passage 6 takes also a coil spring 10, which is arranged substantially in the area and on the large parallel surface 11 of the trapezoidal contact 9 supported.
  • the contact 9 becomes wedge-shaped in the area of it arranged surfaces 12 against the corresponding wedge-shaped Counter surfaces of the slide 4 and / or the spring-facing surface of the contact biased.
  • the respective contact 9 has such a length that it extends over both ends of the protrudes upper surface 13 and lower surface 14 of the slide.
  • the supernatant is the same and dimensioned so that in the area of the supernatant is sufficient Area for contacting the assigned stationary contacts 15 remains.
  • the contact body 9 forms due to this design in the area of from the slider 4 projecting areas two contacts 16, which with the Contacts 15 can be brought into operative connection.
  • the contact body 17, which contains the respective stationary contact 15, is formed as a plate which is mounted in the housing 3.
  • the contact body 17 takes, in the case of the embodiment, a contact element in the region of one end 18 into which the contact blade 19 of the fuse link 2 (NH fuse link) is insertable.
  • the plate-shaped contact body 17 is around Angled 90 °, and the angled end portion 20 in the immediate vicinity positioned to the slide 4 substantially parallel to this.
  • the angled one End section 20 has lateral plate regions 21 and a central, plate area 22 bent out of the plate plane.
  • the mutually facing vertical end faces 23 of the side plate areas 21 are arranged in a wedge shape relative to one another, corresponding to the wedge shape of the contact body 7.
  • the central, bent plate area 22 is lobed trained and is in the manner of a single-sided leaf spring, the with their free, in the direction of the slider 4 area in the path of Contact 16 protrudes, specifically its upper or lower end face 25.
  • the contact arrangement is in the form of a bridge contact arrangement formed with the contact body 9.
  • FIGs 1 to 3 show the switching state "off".
  • the slide 4 is located itself in its relatively right position, in which the respective moving contact 16 is disengaged from the associated stationary contact 15.
  • the slide 4, as illustrated in FIGS. 6 and 7, continues to follow Moving to the rear, the contact 16 continues to contact the central plate area 22, but also arrives with its two wedge-shaped surfaces 12 in contact with the correspondingly arranged in wedge end faces 23 of the lateral plate areas 21.
  • the contact body 9 lies in the area of the respective Contact 16 over the entire length of the end faces 23 of the side Plate areas 21 on this.
  • the spring 10 presses the contact body 9 between the side plate regions 21 of the two associated contacts 15.
  • the wedge-shaped areas of the contact arrangement are therefore clear assigned the current carrying function.

Landscapes

  • Push-Button Switches (AREA)
  • Slide Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Contacts (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
EP03000985A 2002-02-16 2003-01-17 Arrangement des contacts pour un interrupteur électrique Expired - Lifetime EP1439558B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10206509 2002-02-16
DE10206509A DE10206509A1 (de) 2002-02-16 2002-02-16 Kontaktanordnung für ein elektrisches Schaltgerät

Publications (2)

Publication Number Publication Date
EP1439558A1 true EP1439558A1 (fr) 2004-07-21
EP1439558B1 EP1439558B1 (fr) 2005-12-07

Family

ID=27635039

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03000985A Expired - Lifetime EP1439558B1 (fr) 2002-02-16 2003-01-17 Arrangement des contacts pour un interrupteur électrique

Country Status (3)

Country Link
EP (1) EP1439558B1 (fr)
AT (1) ATE312408T1 (fr)
DE (2) DE10206509A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012012813U1 (de) * 2012-07-11 2013-12-04 Tyco Electronics Amp Gmbh Schaltvorrichtung
CN107533926B (zh) 2015-04-24 2019-03-29 Abb瑞士股份有限公司 旁路开关、提供导电路径的方法和功率系统
ES2716168T3 (es) * 2016-02-29 2019-06-10 Woehner Gmbh & Co Kg Elektrotechnische Systeme Disposición de contacto de conmutación

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB224047A (en) * 1923-09-20 1924-11-06 Claude William Denny Improvements in or relating to electric switches
GB227749A (en) * 1923-09-14 1925-01-14 Richard Scheibe Improvements in methods of and means for securing railway rails to sleepers
GB468987A (en) * 1936-05-04 1937-07-16 Gen Electric Co Ltd Improvements in or relating to contacts for electric switches
GB553638A (en) * 1941-11-27 1943-05-31 Brookhirst Switchgear Ltd Improvements in or relating to electric switches and switchgear having auxiliary sparking contacts
GB622381A (en) * 1946-04-01 1949-05-02 Bendix Aviat Corp Improvements in or relating to electric circuit-breakers having arc-extinguishing means

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB227749A (en) * 1923-09-14 1925-01-14 Richard Scheibe Improvements in methods of and means for securing railway rails to sleepers
GB224047A (en) * 1923-09-20 1924-11-06 Claude William Denny Improvements in or relating to electric switches
GB468987A (en) * 1936-05-04 1937-07-16 Gen Electric Co Ltd Improvements in or relating to contacts for electric switches
GB553638A (en) * 1941-11-27 1943-05-31 Brookhirst Switchgear Ltd Improvements in or relating to electric switches and switchgear having auxiliary sparking contacts
GB622381A (en) * 1946-04-01 1949-05-02 Bendix Aviat Corp Improvements in or relating to electric circuit-breakers having arc-extinguishing means

Also Published As

Publication number Publication date
ATE312408T1 (de) 2005-12-15
DE50301847D1 (de) 2006-01-12
DE10206509A1 (de) 2003-08-28
EP1439558B1 (fr) 2005-12-07

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