EP2048676A2 - Commutateur à contact glissant - Google Patents

Commutateur à contact glissant Download PDF

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Publication number
EP2048676A2
EP2048676A2 EP08105499A EP08105499A EP2048676A2 EP 2048676 A2 EP2048676 A2 EP 2048676A2 EP 08105499 A EP08105499 A EP 08105499A EP 08105499 A EP08105499 A EP 08105499A EP 2048676 A2 EP2048676 A2 EP 2048676A2
Authority
EP
European Patent Office
Prior art keywords
contact
sliding
grinding
sliding contact
contactor
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Withdrawn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
EP08105499A
Other languages
German (de)
English (en)
Other versions
EP2048676A3 (fr
Inventor
Eduard Ruff
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
ZF Electronics 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 ZF Friedrichshafen AG, ZF Electronics GmbH filed Critical ZF Friedrichshafen AG
Publication of EP2048676A2 publication Critical patent/EP2048676A2/fr
Publication of EP2048676A3 publication Critical patent/EP2048676A3/fr
Withdrawn legal-status Critical Current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
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/64—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member wherein the switch has more than two electrically distinguishable positions, e.g. multi-position push-button switches
    • 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
    • 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
    • H01H1/40—Contact mounted so that its contact-making surface is flush with adjoining insulation
    • 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
    • H01H1/42—Knife-and-clip 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
    • H01H1/40—Contact mounted so that its contact-making surface is flush with adjoining insulation
    • H01H2001/406—Contact mounted so that its contact-making surface is flush with adjoining insulation with holes or recesses between adjacent contacts, e.g. to collect abrasion powder

Definitions

  • the invention relates to an electrical sliding contact switch, in particular a micro, miniature or subminiature switch whose switching positions are changed by sliding movement of the contact body.
  • Electrical sliding contact switch of this type serve as micro, miniature or subminiaturschalter in many applications, such. B. in the automotive and home appliance technology. In these switches sliding contacts are brought in a sliding movement of a contact point to another contact point. The electrically conductive connection should be made only at the respective contact points.
  • Out DE 10 2006 011 930 B3 is an electrical sliding contact switch with a pivotally mounted contact rocker known.
  • the known switch has a base of electrically insulating plastic and a lid.
  • the voltage is applied to a common contact body, which is constantly in electrically conductive connection with a contact rocker mounted on it.
  • the contact rocker has two pairs of contact fingers that sweep contact areas on two select contact bodies.
  • a positioning spring in C or ⁇ form pulls the contact rocker into a first oblique position, in which the shift fingers rest on both sides against the contact region of the first selection contact body.
  • By pressure on an actuator, which is displaceable in the lid and sealed by a sealing sleeve the contact rocker is forced into its opposite second pivotal position in which abut the contact fingers on both sides of the contact region of a second selective contact body.
  • EP 1 764 813 A1 describes an electrical switch having a common contact body as well as a first selective contact body and a second elective contact body.
  • a contactor With the common contact body, a contactor is mechanically and electrically connected.
  • the contactor consists of an elastic, electrically conductive material.
  • the contactor is biased such that the contact fingers rest against the contact surfaces of the first select contact body. By pressure on the contactor of this is elastically deformed, and pivoted with the contact fingers so that the contact fingers comprise the contact surfaces of the second electroresistive switching effect.
  • a disadvantage of the switch of the prior art is that by the sliding movement of the sliding contacts on the housing areas between the selective contact bodies metallic Deposits may occur, which can even make a conductive connection between the individual Wahlrobeskon. These deposits are reinforced by contamination and by the burning of the lubricating grease or oil used, so that the grinding path, which is formed by the sliding contacts in the grinding region of the housing, can make a conductive connection.
  • the invention is therefore based on the object to provide an electrical switch of the type mentioned, in which the switching operation can be optimally designed according to the electrical and mechanical requirements, so that, despite economical production, a long-term reliable continuous operation is guaranteed.
  • a contactor between selector contact bodies is brought dragging from a switching position to another switching position.
  • the contactor with one end constantly in electrically conductive connection with a common contact body, which usually represents a ground terminal.
  • On the contactor sliding contacts are formed, which make electrical contact with WahlARM emotionsn in the respective switching position.
  • these sliding contacts are brought out of engagement with a first selector contact body and slidingly into engagement with a second selector contact body, wherein between the two selector contact bodies of the sliding contact is passed over a grinding area.
  • the switch according to the invention has two selector contact body.
  • the sliding contact switch according to the invention can also have, for example, as a simple on / off switch only one selector contact body, wherein the sliding contact is reciprocally coupled between an electrically non-conductive grinding region and the contact surface of a selector contact body.
  • the sliding contact does not touch the rib in the connection region to the grinding surface, ie at the foot of the rib, during the passage of the sliding contact over the rib.
  • the sliding contact can not penetrate to the bottom of the rib due to its crowned shape, with a radius which is greater than the radius of the point of attachment of the rib to the grinding surface. This creates on both sides of the rib in each case an interruption in the grinding path, in which abrasion and / or impurities can not make a conductive connection. A formation of a conductive connection between the election contact body over the rib away is thus not possible.
  • the contact point of the sliding contact changes continuously as it traverses the rib so that possible abrasion occurs uniformly over the entire surface of the sliding contact.
  • the shape of the rib can be determined largely freely, it must nevertheless be ensured that the sliding contact and the rib are designed so that at the moment in which the sliding contact touches the rib and not yet lifted from the grinding area, a gap remains between sliding contact and ribbed bottom, in which the sliding contact can not penetrate.
  • This gap interrupts, as already indicated above, on the one hand, the sliding track between the selector contact bodies and on the other hand can accumulate in this gap grease or oil and thus improve the lubrication of the sliding contact.
  • Lubricating grease used will preferably accumulate in the bottom of the rib and spread along the rib, so that lubricating oil or grease can be absorbed to lubricate the sliding contact each time the sliding contact is brushed away.
  • the groove for the lubricant used also acts as a kind of reservoir.
  • tactile feedback that occurs when the sliding contact over the groove or the rib.
  • This can be used to detect a switching state, for example, a basic position of the switch. When performing a constriction, this is particularly easy because the sliding contacts are pressed easily into the indentation due to their contact force and an increase in the resistance to movement for further movement of the sliding contacts can be seen.
  • a center-zero position is detectable, which may be a basic position for the switch. But even by sequential arrangement of two ribs can achieve such an effect.
  • the tactile feedback can be utilized by crossing the sliding contact of the first rib to determine after leaving the selection contact a non-conductive position of the sliding contact and vice versa after leaving the Abrasive area a conductive connection can be detected on a dial contact body.
  • a switch position with conductive electrical connection or a position with non-conductive connection can be determined in a simple and reliable manner.
  • the non-conductive grinding region which is also referred to as an insulator, arranged between two conductive regions, each associated with a selective contact body or even belong to a single contact body (selector contact body).
  • the sliding contact of the contactor is located on the grinding area of the insulator, so that no passage takes place in the switch.
  • the sliding contact can be brought from a position on a non-conductive grinding area in a conductive contact region on a (optional) contact body be moved from there to another grinding area, for example, another insulator, or back to the (output) insulator.
  • the switch according to the invention can also be made of a switching or normal position, in which the contactor is in conductive connection with at least one sliding contact with a selective contact body, and thus a passage through the switch takes place over a grinding range, during which no passage through the switch takes place be moved to another dial contact body, in which case again takes place a passage through the switch.
  • the contactor with a different contact point with a common contact body for the contact body which usually represents the ground contact of the switch, in constantly electrically conductive connection.
  • the switching point can be precisely defined from one selection contact body to another elective contact body, since in addition to the movement running in the plane of the grinding regions, a movement directed away from the grinding surface is added, which permits a defined switching point.
  • This additional movement can also be achieved that the distances between the selector contact bodies can be optimally designed so as to enable a faster and more accurate switching.
  • the switching path remains largely constant regardless of the number of switching cycles. A shortening of the dead travel due to the flattening of the initially crowned sliding contact and the associated increase in the contact surface is practically not in the switch design according to the invention.
  • the sliding contactor with its sliding contacts and its movement possibilities, ie the sliding contacts on the grinding path in the grinding area a variety of possibilities can be implemented, which are all encompassed by the inventive concept, as long as the trajectory / sliding track, the sliding contact in electrically non-conductive Abrasive region is interrupted by introducing an elevation or depression, so that zones in the grinding area and / or on the surface of the elevation or depression are present, which does not touch the sliding contact. Since the idea of the invention allows already existing electrical circuit breaker concepts to change according to the concept of the invention, such modified electrical contact switches are also included in the inventive concept.
  • the invention is likewise not limited to switches which switch back and forth between two selector contact bodies with an electrically nonconductive grinding region arranged therebetween or switch from an electrically non-conductive grinding region into an electrically conductive region and vice versa, but it is readily apparent to the person skilled in the art that the concept of the invention can also be applied in rotary sliding contact switches, potentiometers or rotary switches. The same applies to linear switches with a purely linear movement of the contactor or the sliding contacts from a first position to a second position. Of course, switches that perform a combination of linear and rotary movements of the sliding contacts and thereby run over elevations or depressions in non-conductive areas, also included in the inventive concept.
  • the manner in which the contactor is brought from a contact point on a selector contact body over the barrier on the grinding region of the housing to another contact point of a selector contact body is included in the invention in all possible embodiments. It does not matter whether the contactor is elastically biased or elastically brought into a biased position or simply pushed without elastic deformation of a range in the next area, pulled or rotated. In all these cases, the inventive concept is also realized when between two switch positions for a sliding contact a geometric obstacle, for. B. is introduced in the form of a rib or a groove which interrupts the slideway, so that between two adjacent areas no conductive connection is established by the slideway.
  • FIG. 1 shows a sliding contact switch, as it is known from the aforementioned prior art, but with an introduced in the grinding area rib.
  • the switch shown has a housing 2, in which a common contact body 4 and two selective contact body 10 are arranged with their broad sides flat next to each other so that in each case one end of the three contact body protrudes from the housing.
  • the common contact body 4 and the two selector contact body 10 are arranged or embedded in the housing 2 such that there is no conductive connection between them.
  • a contactor 6 is in constantly conducting electrical connection with the contact body 4.
  • the contactor can be switched by an actuator 14 elastically between the contact surfaces 11 of the selector contact body 10 back and forth.
  • the contact surfaces 11, which are located on both sides of the selection contact body 10 of contact fingers 22, which are located on the contactor 6, comprises elastically biased.
  • the wiper fingers 22 as they move from one selector contact body to the other selector contact body, cross a rib 16 which is arranged in the grinding region 20 approximately transversely to the direction of movement.
  • FIG. 2 is shown in dashed lines, the respective sliding track 12 for the sliding contacts 8. It can be seen that the slideway 12 is interrupted in each case before and after the rib, as seen in the direction of movement of the Schleiffinger 22.
  • FIG. 4 the two Schleiffinger 22 are shown in the position in which they just touch the rib 16. With further progression of Schleiffinger 22 in the direction of in the FIGS. 3 and 4 indicated arrow lifting the Schleiffinger 22 from the grinding area 20 and cross the rib 16. At the moment of contact of the contact fingers 22 with the rib 16, as in FIG. 4 shown, contact-free zones 18 are present between the contact fingers 22 and the grinding area 20, in which the sliding contact 8 can not occur.
  • two ribs 16 are provided in the grinding area 20, which, for example, can serve to hold the Schleiffinger 22 in a defined position. From this, they can then be deflected in both directions in order to enter into a conductive connection with both the first selection contact body 10 and the second selection contact body 10.
  • the grinding region 20 is in this embodiment, a part of the housing, that is, the selective contact body are embedded in the housing so that the area 20 is filled between them by housing material.
  • This can be realized, for example, in the injection molding process of the housing, wherein care must be taken that the contact surfaces 11 of the selector contact body are not covered with injection molding material. Simultaneously with the embedding of the selector contact body in the housing and the rib 16 and the groove 16 may be formed, in FIG. 3 is shown.
  • FIG. 3 shows how the already FIG. 4 the principle of the sliding moving contact fingers of a selective contact body 10 via a grinding area 20 to a second dial contact body 10.
  • the sliding track of the sliding contacts 22 is interrupted simply and reliably here by a design measure.

Landscapes

  • Slide Switches (AREA)
  • Contacts (AREA)
EP08105499A 2007-10-10 2008-10-07 Commutateur à contact glissant Withdrawn EP2048676A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007048581A DE102007048581B3 (de) 2007-10-10 2007-10-10 Schleifkontaktschalter

Publications (2)

Publication Number Publication Date
EP2048676A2 true EP2048676A2 (fr) 2009-04-15
EP2048676A3 EP2048676A3 (fr) 2011-10-12

Family

ID=39688526

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08105499A Withdrawn EP2048676A3 (fr) 2007-10-10 2008-10-07 Commutateur à contact glissant

Country Status (4)

Country Link
US (1) US8124896B2 (fr)
EP (1) EP2048676A3 (fr)
CN (1) CN101430977B (fr)
DE (1) DE102007048581B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014225666A1 (de) 2014-12-12 2016-06-16 Zf Friedrichshafen Ag Kontaktgeber für einen Schleifkontaktschalter, Schleifkontaktschalter und Verfahren zum Überprüfen eines Kontaktgebers

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5006971B2 (ja) * 2008-09-22 2012-08-22 アルプス電気株式会社 スイッチ装置及びスナップアクション機構の組立て方法
JP5521513B2 (ja) * 2009-11-30 2014-06-18 パナソニック株式会社 旋回方向指示装置
DE102010003152A1 (de) * 2010-03-23 2011-09-29 Zf Friedrichshafen Ag Funkschalter
DE102010003151A1 (de) * 2010-03-23 2011-09-29 Zf Friedrichshafen Ag Induktionsgenerator
DE102010029979A1 (de) 2010-06-11 2011-12-15 Zf Friedrichshafen Ag Schleifkontaktschalter
US8440922B2 (en) 2010-09-08 2013-05-14 Apple Inc. Water inhibiting slide switch
DE102013203466A1 (de) 2013-03-01 2014-09-04 Zf Friedrichshafen Ag Schalter
JP6119340B2 (ja) * 2013-03-19 2017-04-26 オムロン株式会社 スイッチ
CN103268828B (zh) * 2013-05-29 2015-01-21 上海沪工汽车电器有限公司 一种车用双向选择翘板开关
CN104299801B (zh) * 2013-07-18 2016-08-10 新巨企业股份有限公司 提升电气绝缘的多指令开关
JP2017162671A (ja) * 2016-03-09 2017-09-14 オムロン株式会社 リミットスイッチ装置
CN106599670A (zh) * 2016-12-25 2017-04-26 长沙修恒信息科技有限公司 一种模块式的多功能主机及系统
JP6406376B2 (ja) * 2017-03-13 2018-10-17 オムロン株式会社 スイッチ
CN108766796B (zh) * 2018-05-09 2020-12-18 淄博职业学院 一种电气自动化开关
CN110060897B (zh) * 2019-05-23 2024-04-05 科都电气股份有限公司 一种集成开关

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001256857A (ja) * 2000-03-14 2001-09-21 Toshiba Video Products Japan Co Ltd 磁気記録再生機器の動作モード検出スイッチ
DE102006011930B3 (de) 2006-03-15 2007-02-22 Cherry Gmbh Elektrischer Schalter mit einer schwenkbar gelagerten Kontaktwippe
EP1764813A1 (fr) 2005-09-16 2007-03-21 Cherry GmbH Interrupteur électrique

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US2785240A (en) * 1953-10-23 1957-03-12 Carling Electric Inc Slide switches
DE1904616B2 (de) * 1969-01-30 1976-12-16 Wandel U. Goltermann, 7410 Reutlingen Schalter mit kontakten aus flaechenhaften leitungszuegen
US4376234A (en) * 1981-05-05 1983-03-08 Liataud James P Dip switch
IT8322492V0 (it) * 1983-07-26 1983-07-26 Sace Spa Gruppo di contatto per apparecchiature elettriche.
JPS61151214U (fr) * 1985-03-09 1986-09-18
US4841105A (en) * 1988-04-11 1989-06-20 Amp Incorporated Slide switch configured as an integrated circuit package
JPH03219509A (ja) * 1989-11-25 1991-09-26 Seiko Epson Corp スイッチ基板及びスイッチ基板製造方法
DE19714522C1 (de) * 1997-04-08 1998-05-07 Priesemuth W Schalter, sowie Drahtkontakt, insbesondere zur Verwendung für einen Schalter
JP4546639B2 (ja) * 2000-12-06 2010-09-15 ナイルス株式会社 インヒビタースイッチ
JP4637298B2 (ja) * 2001-03-12 2011-02-23 ナイルス株式会社 スイッチ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001256857A (ja) * 2000-03-14 2001-09-21 Toshiba Video Products Japan Co Ltd 磁気記録再生機器の動作モード検出スイッチ
EP1764813A1 (fr) 2005-09-16 2007-03-21 Cherry GmbH Interrupteur électrique
DE102006011930B3 (de) 2006-03-15 2007-02-22 Cherry Gmbh Elektrischer Schalter mit einer schwenkbar gelagerten Kontaktwippe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014225666A1 (de) 2014-12-12 2016-06-16 Zf Friedrichshafen Ag Kontaktgeber für einen Schleifkontaktschalter, Schleifkontaktschalter und Verfahren zum Überprüfen eines Kontaktgebers

Also Published As

Publication number Publication date
US20090095609A1 (en) 2009-04-16
CN101430977B (zh) 2012-09-05
EP2048676A3 (fr) 2011-10-12
US8124896B2 (en) 2012-02-28
DE102007048581B3 (de) 2008-09-18
CN101430977A (zh) 2009-05-13

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