EP1134760A2 - Contact électrique - Google Patents

Contact électrique Download PDF

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Publication number
EP1134760A2
EP1134760A2 EP01102925A EP01102925A EP1134760A2 EP 1134760 A2 EP1134760 A2 EP 1134760A2 EP 01102925 A EP01102925 A EP 01102925A EP 01102925 A EP01102925 A EP 01102925A EP 1134760 A2 EP1134760 A2 EP 1134760A2
Authority
EP
European Patent Office
Prior art keywords
contact
spring
truncated cone
electrical
cone spring
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.)
Withdrawn
Application number
EP01102925A
Other languages
German (de)
English (en)
Other versions
EP1134760A3 (fr
Inventor
Dieter Wirth
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.)
Hans and Jos Kronenberg GmbH
Original Assignee
Hans and Jos Kronenberg 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 Hans and Jos Kronenberg GmbH filed Critical Hans and Jos Kronenberg GmbH
Publication of EP1134760A2 publication Critical patent/EP1134760A2/fr
Publication of EP1134760A3 publication Critical patent/EP1134760A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/16—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
    • H01H3/161—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover or lid

Definitions

  • the invention relates to an electrical contact, in particular Door contact, with at least a first and second part of the Contact, each having at least one electrically conductive contact element have, wherein by relative movement of the first and second parts of the contact to each other the corresponding Contact elements with the closure of an electrical Circuit can be contacted with each other and at least one of the contact elements is spring loaded.
  • Such electrical contacts are in particular in the form of Bridging contacts used on doors, the first Contact part two contact elements connected with electrical lines has the electrical by means of a bridge be conductively connected.
  • the first contact part can e.g. on the door frame is arranged, the corresponding one on the door Bridging contact is provided so that when closed Door between those arranged on the door frame Contact elements an electrical current can flow.
  • Such Contact will e.g. to secure elevator doors used, but they can also be used, for example, as plug contacts Find use.
  • the invention is therefore based on the object of an electrical Provide contact that has a long life and has operational reliability and is simple and inexpensive is to be produced.
  • the object is achieved in that the resilient Storage of the contact element a truncated cone spring is used when contacting the two corresponding Longitudinal contact elements, preferably under Compression, is claimed.
  • Such truncated cone springs preferably consist of a spiral wound tape, the individual windings of the tape overlap in height. By overlapping the Windings occur particularly during the lifting movement of the Truncated cone spring attached contact element self-centering the truncated cone spring since the individual turns engage in each other and thereby be guided laterally. It is therefore a largely, preferably exactly, linear one Movement of the contact element ensures without further Guide devices are necessary, which ensures high operational reliability electrical contact is guaranteed.
  • the truncated cone spring is preferably present, except for the Discharge or contact elements arranged on both sides, exclusively from a wound band.
  • the contact spring generally has one for the required Stroke sufficient number of turns on advantageously a stroke reserve is provided.
  • the length of the spring can range from 0.5: 1 to 1: 1 preferably around 0.75: 1, without being limited to this his.
  • the spring can have two to six, for example 4 turns have, depending on the application, less or additional turns can be provided.
  • the width of the Spring band can be 2-4 mm without being limited to this his.
  • the overlap of the individual turns of the tape can regardless of the width of the belt, e.g. 30 to 75%, preferably approx. 50%, the width of the wound tape, without being limited to this.
  • the truncated cone spring is at one end the contact element and at the opposite end an electrical discharge electrically connected.
  • the Truncated cone spring is therefore part of the electrical circuit, the truncated cone spring due to the band-shaped design very little electrical resistance Connection with advantageous mechanical properties, in particular Fatigue properties.
  • the truncated cone spring advantageously consists of a Copper alloy, especially one containing tin, zinc or beryllium Copper alloy, e.g. CuZn 37, CuSn 6 or CuBe.
  • the material properties as well as the dimensions of the Truncated cone spring can the respective electrical or mechanical Be adapted to requirements, especially to different Hardness settings.
  • the contact element is advantageously directly on the Truncated cone spring attached, the contact surface perpendicular is arranged to the longitudinal axis of the spring and the longitudinal axis of the Spring runs through the center of the contact surface.
  • the contact element is preferably at the end of the contact spring smaller diameter, i.e. the inner winding, attached without to be limited to this. If necessary, a two Truncated cone springs bridging contact bridge may be provided.
  • the contact element can additionally or alternatively to the Welded connection with positive and non-positive locking on the truncated cone spring be attached.
  • the contact element can the side opposite the contact surface have axially extending projection, the projection a slot to accommodate the inward angled end the truncated cone spring.
  • the height of the slot can Correspond to the width of the band forming the truncated cone spring, so that these are completely absorbed by the slot can.
  • the end of the band can be held in the slot in a force-locking manner be and additionally welded to the projection.
  • a recess in the contact surface have, which is preferably a circular arc Has cross section.
  • the spring can make contact in a housing shaft be arranged, the side walls of which is attached to the spring Contact element surrounded with little play on the side, so an additional side guide for that Contact element is given and a tilt-free longitudinal movement guaranteed of the contact element in the housing shaft is.
  • a cover of the electrical contact can act.
  • the Contact element preferably has a cross section, so that this is only with partial areas of its circumference on the housing shaft wall can be applied, making a tilt-free Stroke movement of the contact element is further promoted.
  • the end of the truncated cone spring facing away from the contact element, which is the wider base of the spiral wound spring can represent can be arranged in a recess of the housing be the spring on the side and bottom supports or tight or surrounds with little play.
  • a housing area can be provided, on which a away from the spring, e.g. tangential, extending End is laterally supported.
  • the band end of the spring lies preferably on the housing area.
  • the Support area can laterally on the above-mentioned recess connect and, if necessary, as an opening in the housing shaft be formed with a flat side wall.
  • the opening can optionally be slit-shaped.
  • the housing shaft can have a length so that the the truncated cone spring provided below the contact element Preload is arranged in the shaft if this is not pressurized by the corresponding contact element becomes.
  • the contact element can be the housing shaft opening complete under pressure so that a The entry of foreign bodies into the contact is prevented.
  • the electrical dissipation element preferably has a flat connection point parallel to the Longitudinal direction of the truncated cone spring is arranged, the band end extending laterally away from the spring can be applied to the level of the junction.
  • the electrical discharge element arranged such that a tangential extending from the spring end of the tape Spring can be applied flat to the housing area.
  • the derivation element preferably has a non-round one Cross-section on, so that it is secured against rotation by positive locking means is fixed in the housing.
  • the discharge element is preferably polygonal, e.g. as a polygonal plate in the form of a square nut, the Spring is contacted with a corner on the plate and at least a feed-through channel is provided for an electrical line is at another corner of the discharge element flows.
  • the longitudinal axis or diagonal of the polygonal discharge element is preferably parallel to the longitudinal direction the spring oriented, making it a versatile Geometry of the connection points on the connecting element and results in a space-saving embodiment. Regardless of this can have two or more housing passages leading to the dissipation element intended to accommodate electrical cables be so that an electrical connection to one of the ends of which are spaced from the region contactable with the connecting element is, i.e. the connecting line without interruption through the housing of the electrical contact can.
  • the electrical contact is advantageously used as an interrupter contact executed, i.e. there are at least two means, preferably structurally identical, frustoconical contact elements provided under the influence of the corresponding Execute a coordinated lifting movement of the contact element can.
  • the contact elements can be made through a relative to these movable bridge can be bridged immediately.
  • Such contacts are, for example, as Door contacts known.
  • the contact is not based on training as a break contact limited, the two corresponding parts of the Contact can also have at least one contact element have, the parts of the contact devices for electrically conductive connection of the contact elements with electrical Have derivatives.
  • the electrical leads serve to supply electrical consumers, the between the two contact elements one of the parts of the Contact are provided.
  • One or more of the Parts of contact via leads with an associated one electrical consumers are connected.
  • the door When using the contact according to the invention, independently from its design, as a door contact, the door is preferred actuated in the manner of a sliding door, the longitudinal directions the at least one truncated cone spring in the plane of displacement the door is arranged.
  • the door can with appropriate Arrangement of the contact but also operated differently e.g. as a swing door.
  • Figures 1 and 2 show an electrical contact in the form a bridging contact, i.e. the contact has a housing 1 with two contact elements 2 (only one is shown) on, creating a closed circuit be bridged by a bridge, not shown.
  • the two contact pins of the bridge are in the two the narrow side of the housing 1 arranged inlet openings 3 introduced and electrically conductive with the contact elements 2 connected.
  • the two plate-shaped contact elements 2 are each on attached the ends of a truncated cone spring 4 so that this through the pins of the contact bridge with a lifting movement can be depressed, the contact surfaces of the two components are applied to each other.
  • the truncated cone spring 4 is arranged in a housing shaft, wherein the broad base of the truncated cone spring in one with only this recess 6 surrounding the openings 3 opposite end of the shaft is held.
  • the attachment 7 is before the opening 3 an attachment 7 with a passage opening for the Pin of the contact bridge provided, the attachment 7th the feed position of the contact element 2 in the direction of limited the opening 3.
  • the truncated cone spring 4 a length so that the truncated cone spring acts as a compression spring under a certain preload in the housing shaft 5 is arranged. If necessary, by exchange of the adapter 7, the bias of the spring 4 is set become.
  • the end 8 extending tangentially from the base end of the band forming the truncated cone spring is without further Prestressing flat on the recess 6 adjacent housing area 9 supported laterally.
  • the end 8 is electrically connected to the square lead-out element 10, in this case by a spot weld connection, the end 8 of the spring facing the housing area 9 Side of the diverting element 10 is arranged.
  • the Polygonal, here square, disc-shaped discharge element arranged so that its diagonal or a major axis runs parallel to the longitudinal axis of the spring 5, the end 8 of the spring 4 at the corner of the discharge element facing the opening 3 is contacted.
  • Figure 3 is truncated cone spring 4 with attached to this Contact element 2 and discharge element 10 shown.
  • Longitudinal cone spring loaded as compression spring 4 has four helical windings that are approx. Overlap 50% of the width of the band forming the spring.
  • The is connected to the contact element 2 free end of the band angled and in a slot 12 of the contact surface 13 opposite projection 14 clamped and additionally secured by a welding spot and electrically conductive with connected to the contact element 2.
  • the contact element 2 has a radially circumferential edge 15, which the attachment piece 7th can be brought to the system, so that the contact surface 13 in the Attachment piece 7 engages. The penetration of dirt into the Housing shaft 5 with this is not bridged contact avoided.
  • the contact surface 13 with a Provide indentation so that the contact pin slips is avoided by the contact surface 13 and even with minor Tilting of the contact element 2 a substantially compressive force directed parallel to the longitudinal axis of the spring 4 the contact element 2 is exercised.
  • the indentation is preferred the corresponding contact element to be brought up facing and perpendicular to the approach direction indented.
  • the self-centering of the spring due to the interlocking windings becomes a side Deflection of the contact element 2 through the walls of the Housing slot 5 prevented.
  • the end 8 which extends tangentially from the spring 4 is flat the flat side of the formed in the form of a square nut Diverter element 10 created and by means of the welding point 16 connected.
  • the truncated cone spring 4 has a length in the unloaded state from 7 mm to, the installation height is approx. 6 mm, whereby at the corresponding pin contact depressed contact element 2 a stroke reserve of 1 to 0.5 mm remains.

Landscapes

  • Contacts (AREA)
EP01102925A 2000-03-08 2001-02-08 Contact électrique Withdrawn EP1134760A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000111199 DE10011199C1 (de) 2000-03-08 2000-03-08 Elektrischer Kontakt
DE10011199 2000-03-08

Publications (2)

Publication Number Publication Date
EP1134760A2 true EP1134760A2 (fr) 2001-09-19
EP1134760A3 EP1134760A3 (fr) 2003-06-04

Family

ID=7633914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01102925A Withdrawn EP1134760A3 (fr) 2000-03-08 2001-02-08 Contact électrique

Country Status (2)

Country Link
EP (1) EP1134760A3 (fr)
DE (1) DE10011199C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106960733A (zh) * 2015-09-09 2017-07-18 emz-汉拿两合有限公司 具有门开关的门锁

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2020902A1 (fr) * 1968-10-17 1970-07-17 Siemens Ag

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6926438U (de) * 1969-07-02 1969-11-13 Stop Choc Schwingungstechnik G Vorrichtung mit kegelstumpffeder
DE8616074U1 (de) * 1986-06-14 1986-10-09 Franz Kirsten Elektrotechnische Spezialfabrik, 6530 Bingen Elektrischer Kontaktschalter
KR950004935B1 (ko) * 1986-09-30 1995-05-16 후루까와 덴끼 고교 가부시끼가이샤 전자 기기용 구리 합금

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2020902A1 (fr) * 1968-10-17 1970-07-17 Siemens Ag

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106960733A (zh) * 2015-09-09 2017-07-18 emz-汉拿两合有限公司 具有门开关的门锁
CN106960733B (zh) * 2015-09-09 2019-04-26 emz-汉拿两合有限公司 具有门开关的门锁

Also Published As

Publication number Publication date
DE10011199C1 (de) 2001-10-18
EP1134760A3 (fr) 2003-06-04

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