EP1630837B1 - Système de contact - Google Patents

Système de contact Download PDF

Info

Publication number
EP1630837B1
EP1630837B1 EP04019974A EP04019974A EP1630837B1 EP 1630837 B1 EP1630837 B1 EP 1630837B1 EP 04019974 A EP04019974 A EP 04019974A EP 04019974 A EP04019974 A EP 04019974A EP 1630837 B1 EP1630837 B1 EP 1630837B1
Authority
EP
European Patent Office
Prior art keywords
contact
spring
actuation
contact system
area
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 - Lifetime
Application number
EP04019974A
Other languages
German (de)
English (en)
Other versions
EP1630837A1 (fr
Inventor
Werner Dr. Puri
Joachim Seidl
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.)
Siemens AG
Original Assignee
Siemens AG
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 AG filed Critical Siemens AG
Priority to EP04019974A priority Critical patent/EP1630837B1/fr
Priority to AT04019974T priority patent/ATE352093T1/de
Priority to DE502004002686T priority patent/DE502004002686D1/de
Priority to PCT/EP2005/053967 priority patent/WO2006021518A1/fr
Priority to US11/660,728 priority patent/US7935905B2/en
Publication of EP1630837A1 publication Critical patent/EP1630837A1/fr
Application granted granted Critical
Publication of EP1630837B1 publication Critical patent/EP1630837B1/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
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
    • H01H13/365—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs having a symmetrical configuration
    • 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
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts

Definitions

  • the invention relates to a contact system for use in electromechanical switching devices, such as contactors, position switches, command and signaling devices and contactor safety combinations or the like.
  • Such a contact system has both a fixed contact and a movable contact.
  • the fixed contact serves for contacting a connecting cable or the like.
  • the movable contact is used to open and close the contact system.
  • the switching systems known from the prior art comprise a contact carrier region and a jump mechanism or a creeping mechanism.
  • the contact carrier area serves for storage, guidance and actuation of the movable contact.
  • the jump mechanism is used to convert the linear actuation of the switch by means of an actuating element in an automatic and irreversible jump operation of the contact carrier area, whereby the actual switching operation is performed.
  • Contact carrier area and jump mechanism consist of a large number of components, resulting in high costs in development, production and assembly, and increases the risk of error of the assembly.
  • a snap-action switch which has a snap spring, which is mounted on a support, wherein the snap-action switch has at least one snap-in contact, which connects electrically to the carrier.
  • the snap-action switch has at least two arms which are under a reciprocal tension to form a closed force system in which at least one arm is under compressive bending and can be switched by an external actuating force.
  • Object of the present invention is to allow a secure contact with a particularly simple structural design.
  • the contact system comprises a spring holder, an actuating element and a contact element, wherein the contact element has a spring region mounted on the spring holder for providing a jump function and an actuatable by the actuating portion for initiation the jump function and a contacting region for simultaneously establishing an electrical contact with the fixed contact pieces.
  • a central idea of the invention is to integrate the step function and the contacting function in a single component, the contact element.
  • This functional integration significantly reduces the number of components required. This leads to lower material, assembly and production costs and also reduces the risk of error of the module.
  • a reduction in the sizes of the individual system components is possible, whereby a significant reduction in the required installation space for the contact system can be achieved.
  • the reduction in the number of components and thus the manufacturing tolerances of the component pairings prevent a malposition of the movable contact and thereby counteract a functional impairment.
  • the contact element consists of an elastically deformable material or composite material, for example spring steel or spring steel, copper-plated.
  • the jumping function of the contact element and, on the other hand, a sufficient contacting pressure in the switching positions is made possible.
  • the spring holder is formed as part of a housing enclosing the contact element.
  • the pen holder in the form of an additional single component can therefore be omitted, which leads to a further structural simplification.
  • an embodiment of the invention has been found in which the spring portion is pre-stamped to achieve an asymmetric jump behavior.
  • the spring portion is pre-stamped to achieve an asymmetric jump behavior.
  • It can be both a one-sided and a double-sided coinage.
  • FIGS. 1 to 3 A prior art contact system 1 of the prior art is shown in FIGS. 1 to 3.
  • Illustrated contact carrier portion 2 while the movable contact 3 is mounted with its two end-mounted switching pieces 4 to a contact holder 5 and / or positioned.
  • the contact holder 5 is held by a metal spring 6 in position, which also produces the connection to the opposite, similarly constructed contact mechanism as a bridge spring.
  • the contact carrier region 2 serves for the storage and positioning of the movable contacts 3 and for applying the contact forces.
  • the illustrated in Figure 1 jump system 7 consists on the one hand of a frame 8 (contact piece carrier) for supporting the contact carrier area 2 and the metal spring 6 and the other from guided resilient elements 9 (not shown in detail nipple and Nippelfedern).
  • a frame 8 contact piece carrier
  • guided resilient elements 9 not shown in detail nipple and Nippelfedern.
  • FIG 3 shows a view of a mounted contact system 1 according to the prior art.
  • the positive opening of the contact can be ensured only by complex mechanisms, since the actuation direction 11 counteracts the opening direction 12 of the normally closed contact in the case of jump mechanisms known from the prior art.
  • the positive opening can thus be effected only by a deflection of the actuating force, for example by one or more positive opening pawls.
  • a contact system 20 is shown in FIG. It essentially comprises a centrally arranged and by means of connecting elements 21 fixedly connected to a housing or the like spring holder (bearing block) 22, a spring holder 22 mounted on the contact element 23 in the manner of a contact bridge and the contact element 23 actuated actuator 24 in the manner of a slider.
  • the contact element 23 is made of an elastic material.
  • the actuating element 24 movably arranged with respect to the spring holder 22 is substantially U-shaped.
  • the spring portions 31 may of course be different, for example, projecting outwardly away from each other, be formed.
  • a return spring is mounted (not shown), which returns the actuating element 24, as soon as it is no longer actuated, back to its original position.
  • the embodiment shown here is characterized by its symmetrical structure with double interrupting contacts 33, 34. Due to the structural design of the jump system, an opening of the closed in the unactuated state contact 20 in the direction of actuation 28 is possible. This allows a secure positive opening of the contact 20 without additional component.
  • the known from the prior art positive opening pawls omitted. The risk of damage or the hard-to-test lack of positive opening pawl is thus excluded.
  • the contact system 20 is also characterized by the fact that movable and fixed contacts 29, 33, 34 perform during the switching operation and a horizontal relative movement to each other. This counteracts fogging of the contact surfaces, ie an increase in the contact resistance or an interruption of the contact by foreign layers.
  • a special arrangement of guides and bearings, as known in systems known from the prior art, for such a relative movement to produce by complex design measures is not required.
  • Metal bridge springs or metal nibs as required in conventional contact systems, are not used. This leads to a significant reduction in the required installation space of the module while complying with the clearance and creepage distances required in standards and regulations.
  • the structurally simple construction results in a relatively simple handling of the contact element 23 during manufacture and assembly. In particular, eliminates the costly manual assembly of metal springs.
  • Deformations of the contact element as they are present in conventional contact systems due to the diverse, multiple degrees of freedom bearing points between bridge spring and movable contact bridge or indirect storage between the spring and movable contact holder can be significantly reduced and associated functional impairments are avoided.
  • the contact system 20 ensures instantaneous opening or closing of the contact. For single or bipolar systems, an immediate actuation, i. ensures immediate opening or closing of all existing contacts. The switching process is irreversible until a further actuation of the actuating element 24. After reaching the jump point it runs off automatically.
  • a bearing of the actuating element 24 is ensured such that the contact pieces of the movable and the fixed contact 29, 33, 34 meet each other in a defined manner.
  • a compensation of the burnup ensured by a corresponding structural design of the contact element 23.
  • the contact element 23 brings a defined contact force. Due to the chosen construction geometrically very precisely determinable switching points can be met, in which one or two contacts are opened or closed. The actuation of the switching mechanism is carried out mechanically.
  • the actuator 24 at its base U-35 on a portion 36, which leads to the actual actuator, such as a drive head or button.
  • the actuator 24 itself can serve as an actuator.
  • contact elements 23 are shown in the unmounted state.
  • the actuating region 30 can be embodied in the unassembled state without pre-embossing, as shown in FIGS. 6 to 9. However, as shown in FIG. 10, it can also have an embossed embossing.
  • the spring portions 31 may be executed without pre-stamping, cf. 6, or have a pre-stamping.
  • 7 again shows the contact element 23 already known from FIGS. 2 and 3.
  • the spring regions 31 of the contact element 23 are unilaterally, namely in the actuating direction 28, pre-stamped. It thus has a preferred position, so that results in an asymmetric jump behavior.
  • the contact element 23 shown in FIG. 9 shows embossing on both sides. If preferred jump directions are provided, the remaining components of the contact system, in particular the return spring of the actuating element 24, can be correspondingly adapted and dimensioned.
  • FIGS. 6 to 10 merely represent possible exemplary embodiments. What is common to all is the relatively simple shape and the resulting simple manufacture.
  • the contact elements 23 can in principle assume any shape. However, you are in the process of training that during assembly, a distortion of the spring portions 31 takes place, so that a sufficient contact force can be applied to the contact pieces 29. During assembly, the resilient areas are deformed and assume a force-optimized shape. If spring areas 31 and / or operating area 30 are pre-stamped, the jumping properties can be optimized.
  • the spring areas 31 are not prestressed in the installed state, they are preferably used in conjunction with a Schleicher. In this case, in other words, there is no skipping from one contact position to another contact position.
  • the contact element 23 has a substantially rectangular shape in plan view.
  • the shape of the spring portions 31 mounted in the bearing points 32 of the spring holder 22 can be varied, as shown in FIGS. 11 and 12.
  • the resilient portions 31 extend from the contact pieces 29 having end portions of the contact element 23 in the direction of the contact bridge center toward each other and are formed in the manner of tongues.
  • the shape of the spring portions 31 can vary.
  • FIG 11 shows a contact element 23 with spring portions 31 in a rectangular shape, while the spring portions 31 'of the contact element 23 shown in FIG 12 taper towards spring holder 22 back.
  • the spring regions 31 are arranged outside in the contact bridges 23 depicted in FIGS. 13 and 14 according to the invention.
  • the actuator 24 is in other words in the opening 37, whereby the contact element 23 can be both transferred from one switching position to another and also brought back.
  • the spring portions 31 are mounted in this embodiment on an outer housing (not shown), which has correspondingly shaped bearings for this purpose. Two arranged on both sides of the operating range pen as extra components are therefore not required.
  • the shape of the spring portions 31 may vary. For example, as shown in FIG. 13, rectangular spring portions 31 ", or, as shown in FIG. 14, dovetail-shaped spring portions 31"'may be used.

Landscapes

  • Push-Button Switches (AREA)
  • Contacts (AREA)
  • Thermally Actuated Switches (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Claims (7)

  1. Système (20) de contact
    - comprenant des pièces (33, 34) de contact fixes,
    - comprenant un porte-ressort (22),
    - comprenant un élément (24) d'actionnement, et
    - comprenant un élément (23) de contact mobile ayant des parties (31) de ressort montées sur le porte-ressort (22) pour disposer d'une fonction de saut, une partie (30) d'actionnement pouvant être actionnée par l'élément (24) d'actionnement pour initier la fonction de saut et une partie (29) de mise en contact pour produire simultanément un contact électrique avec les pièces (33, 34) de contact fixes,
    caractérisé en ce que les parties (31) de ressort de l'élément (23) de contact mobile sont disposées à l'extérieur.
  2. Système (20) de contact suivant la revendication 1, dans lequel l'élément (24) d'actionnement est mis dans l'élément (23) de contact mobile.
  3. Système (20) de contact suivant la revendication 1 ou 2, dans lequel l'élément (24) d'actionnement est mis dans une ouverture (37) centrale de l'élément (23) de contact mobile.
  4. Système (20) de contact suivant l'une des revendications 1 à 3, dans lequel la partie (30) d'actionnement de l'élément (23) de contact mobile est disposée au milieu.
  5. Système (20) de contact suivant l'une des revendications 1 à 4, dans lequel l'élément (23) de contact est en un matériau déformable élastiquement ou en un matériau composite.
  6. Système (20) de contact suivant l'une des revendications 1 à 5, dans lequel le porte-ressort (22) est sous la forme d'une partie d'un boîtier ou analogue entourant l'élément (23) de contact.
  7. Système (20) de contact suivant l'une des revendications 1 à 6, dans lequel les parties (31) de ressort sont précambrées pour obtenir de meilleures propriétés de saut et/ou un comportement de saut dissymétrique.
EP04019974A 2004-08-23 2004-08-23 Système de contact Expired - Lifetime EP1630837B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP04019974A EP1630837B1 (fr) 2004-08-23 2004-08-23 Système de contact
AT04019974T ATE352093T1 (de) 2004-08-23 2004-08-23 Kontaktsystem
DE502004002686T DE502004002686D1 (de) 2004-08-23 2004-08-23 Kontaktsystem
PCT/EP2005/053967 WO2006021518A1 (fr) 2004-08-23 2005-08-12 Systeme de contact
US11/660,728 US7935905B2 (en) 2004-08-23 2005-08-12 Contact system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04019974A EP1630837B1 (fr) 2004-08-23 2004-08-23 Système de contact

Publications (2)

Publication Number Publication Date
EP1630837A1 EP1630837A1 (fr) 2006-03-01
EP1630837B1 true EP1630837B1 (fr) 2007-01-17

Family

ID=34926267

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04019974A Expired - Lifetime EP1630837B1 (fr) 2004-08-23 2004-08-23 Système de contact

Country Status (5)

Country Link
US (1) US7935905B2 (fr)
EP (1) EP1630837B1 (fr)
AT (1) ATE352093T1 (fr)
DE (1) DE502004002686D1 (fr)
WO (1) WO2006021518A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2465604A (en) * 2008-11-25 2010-05-26 Lucy And Co Ltd W Snap action electrical disconnector
CN106710917B (zh) * 2015-07-20 2020-02-07 东京零件工业股份有限公司 按钮开关
US9761388B2 (en) * 2015-07-20 2017-09-12 Tokyo Parts Industrial Co., Ltd. Push switch
CH715073B1 (de) * 2018-06-06 2021-10-29 Landis & Gyr Ag Schalteranordnung mit Blattfederkontaktelement sowie gedruckter Schaltplatine und Verbrauchszähler dieselbe umfassend.

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE913662C (de) * 1948-05-10 1954-05-06 Cyril Kieft & Company Ltd Elektrischer Schnappschalter, insbesondere Waermeschalter zum Schalten von Heizwiderstaenden
US2629791A (en) * 1951-06-16 1953-02-24 Tourneau Robert G Le Snap switch
US2884503A (en) * 1958-01-21 1959-04-28 Electro Snap Switch & Mfg Co Coupling device for multi-spring snap action electric switches
US3061694A (en) * 1959-05-21 1962-10-30 Hubbell Inc Harvey Leaf type snap action switch
US3354274A (en) * 1966-05-05 1967-11-21 Robershaw Controls Company Switch with transverse sheet metal snap action members
US3449534A (en) * 1967-03-08 1969-06-10 Robertshaw Controls Co Switch blade with straight sided stiff tongue and arcuate sided bowed flexible tongue
US3814872A (en) * 1972-04-24 1974-06-04 Polaroid Corp Remote control system for photographic apparatus
SE419806B (sv) * 1973-08-30 1981-08-24 Ego Elektro Blanc & Fischer Elektrisk stromstellare
CH577210B5 (fr) * 1974-03-29 1976-06-30 Ebauches Sa
DE2547278C2 (de) * 1975-10-22 1982-08-26 Eduard 7303 Neuhausen Hermle Elektrischer Schnappschalter
DE2819795C2 (de) * 1978-05-05 1986-05-15 Elektromanufaktur Zangenstein Hanauer GmbH & Co, 8471 Altendorf Schnappschalter
DE2937309A1 (de) * 1979-09-14 1981-04-02 Elektromanufaktur Zangenstein Hanauer Gmbh & Co, 8471 Zangenstein Schnappschalter sowie verfahren zu dessen herstellung
DE8525100U1 (de) * 1985-09-03 1987-06-25 Barlian, Reinhold, Dipl.-Ing.(FH), 6990 Bad Mergentheim Schnappschalter
US4891481A (en) * 1988-06-13 1990-01-02 Eaton Corporation Switch contact blade
US6483058B2 (en) * 2000-09-07 2002-11-19 Itt Manufacturing Enterprises, Inc. Sealed manual reset switch

Also Published As

Publication number Publication date
EP1630837A1 (fr) 2006-03-01
US20090229956A1 (en) 2009-09-17
WO2006021518A1 (fr) 2006-03-02
DE502004002686D1 (de) 2007-03-08
ATE352093T1 (de) 2007-02-15
US7935905B2 (en) 2011-05-03

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