EP1770733A1 - Unité de commutation - Google Patents

Unité de commutation Download PDF

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Publication number
EP1770733A1
EP1770733A1 EP06010264A EP06010264A EP1770733A1 EP 1770733 A1 EP1770733 A1 EP 1770733A1 EP 06010264 A EP06010264 A EP 06010264A EP 06010264 A EP06010264 A EP 06010264A EP 1770733 A1 EP1770733 A1 EP 1770733A1
Authority
EP
European Patent Office
Prior art keywords
switching
switching element
circuit board
switching unit
carrier
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Withdrawn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
EP06010264A
Other languages
German (de)
English (en)
Inventor
Marc Rouffaud
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
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 Delphi Technologies Inc filed Critical Delphi Technologies Inc
Publication of EP1770733A1 publication Critical patent/EP1770733A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/63—Contacts actuated by axial cams
    • 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
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • 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
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • H01H13/18—Operating parts, e.g. push-button 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. door switch, limit switch, floor-levelling switch of a lift
    • H01H13/186—Operating parts, e.g. push-button 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. door switch, limit switch, floor-levelling switch of a lift wherein the pushbutton is rectilinearly actuated by a lever pivoting on the housing of the switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force

Definitions

  • the invention relates to a switching unit with a carrier, at least one mechanically operable switching element and an actuator for switching the switching element. Furthermore, the invention relates to a switching unit with a carrier, a mechanical switching element and a rotary knob for actuating the switching element.
  • Such switching units are used eg in front panels or control panels of household appliances, such as washing machines, dishwashers or the like. Behind the front panel is in known solutions a carrier on which switching elements are provided, which point to the front panel. Actuators pass through the front panel so as to be able to act on the switching elements, as in EP 1 008 160 B1 is described. Special fasteners keep the carrier spaced from the front panel.
  • Claim 18 is directed to a front panel with at least one switching unit according to the invention.
  • a switching unit has a carrier and at least one mechanically operable switching element.
  • An actuator acts through the carrier to switch the switching element, the actuator comprising a button.
  • the actuator is arranged and / or designed such that when actuated by means of the key, the actuating direction of the key and the switching path of the switching element are substantially opposite to each other.
  • the carrier directly on the back of the front panel e.g. a household appliance or to use the front panel itself as a carrier, so that no separate holding element for spaced support is necessary.
  • the button is used to actuate the actuator through the front panel.
  • the switching path of the switching element of the movement of the key is opposite, ie in the direction of the back of the front panel. The switching element can thus be supported directly on the front panel during the switching process, without further support would be necessary.
  • the arrangement of the switching element on the side facing away from the front panel side of the carrier or the back of the front panel is also ensured that the switching element against external influences such. Moisture is better protected.
  • the switching element may be arranged on a printed circuit board, which may be located, for example, on the back of the front panel or the carrier. The switching element is then arranged on the side facing away from the front panel of the circuit board.
  • the actuator has a lever which is pivotable about a first pivot bearing, wherein the key engages or comprises a lever of the lever arm and the other lever arm of the lever during pivoting of Levers about the pivot axis with the switching element in operative connection occurs.
  • Lever and button can be formed in one simple configuration of one piece.
  • a second pivot bearing is provided, via which the key is pivotally mounted on the carrier or a front plate.
  • the second pivot bearing is further away from the key than the first pivot bearing.
  • Button and lever can abut each other or be interconnected by a flexible area to ensure a secure operative connection.
  • first and / or second pivot bearings conventionally comprise pivotal pivots mounted in bearing blocks, the bearing blocks being e.g. attached to the carrier or the front panel.
  • the button and / or the lever may be biased by separate spring means so that they move back to their original position after actuation of the switching element.
  • the or the pivot bearing is formed by material connections that are sufficiently flexible that they are rotated upon pivoting of the lever to the first pivot bearing or the key to the second pivot bearing in the manner of a torsion spring and form a bridge hinge. At the same time, the effect of the spring causes the key or the lever to return to their initial positions after actuation.
  • first bridge hinge and the lever may e.g. be formed in a plate, wherein the lever is bounded by two U-shaped slots which face each other.
  • the U-shaped slots are dimensioned so differently that bridge material remains between their legs, which forms the bridge hinge.
  • Particularly advantageous and easy to produce is an arrangement in which the key and / or the lever are made of plastic, e.g. as injection molded parts.
  • a switching unit with a carrier, at least one mechanically operable switching element and at least a knob having an axis projecting through the support and a portion extending radially rearward of the support away from the axis of the knob on which are provided actuators which upon rotation of the knob comprise at least one switching element for switching that switching element come into operative connection.
  • the switching unit according to the invention is designed such that the switching path of the switching element is substantially parallel to the axis of the rotary knob and the switching element is located between the area extending away from the axis of the rotary knob and the carrier.
  • the actuators on the region extending away from the axis of the knob cause, as the knob rotates, the switching of the switching element located between the carrier and the region extending away from the axis.
  • the knob is mounted in the carrier itself or eg in the front panel, so that no separate storage on an extra holding element is necessary.
  • the carrier may be provided separately or formed by the front panel itself.
  • the one switching element is arranged on a preferably flexible printed circuit board, which may be provided directly on the carrier or directly on the back of the front panel.
  • a preferably flexible printed circuit board which may be provided directly on the carrier or directly on the back of the front panel.
  • other electrical elements such as e.g. LEDs serve.
  • the switching element may be a conventional pressure switch, which is actuated by the actuator in one embodiment with button and actuator or in an embodiment with a knob by the actuators upon rotation of the knob.
  • the actuator presses the actuating elements of the rotary knob and presses metallic contact elements, e.g. on tracks of a circuit board, so as to make contacts between two tracks.
  • the movement of a metallic contact element corresponds to the switching path.
  • Switching units according to the invention can be used particularly advantageously in front panels, e.g. use of household appliances, where little space is available and the cost to be designed.
  • front panel, panel and operator panel are used in the present text as synonyms.
  • a front panel may comprise a plurality of switching units, in particular both at least one switching unit with rotary knob and a switching unit with actuator and button.
  • the application of the switching units according to the invention is not limited to front panels.
  • Several individual switching units can be grouped into groups, e.g. share a carrier or circuit board.
  • groups may e.g. surrounded by an injection molding rim to provide protection against external influences, e.g. Moisture, to offer.
  • a bearing block 16 for a pivot axis 14 is provided on the back of a carrier 10, e.g. the back of a front panel or a panel. With this pivot axis of the lever 18 is connected, which has a reinforcing rib 20. Via a flexible region 22, the lever 18 is connected to the key 12. About connections 28, the key 12 is connected to a pivot axis 24 which is mounted on a bearing block 26 on the front panel 10.
  • the lever 18, the flexible portion 22 and the key 12 may e.g. be formed by a plastic part. A sufficient flexibility of the range 22 results z. B. in that the flexible portion 22 does not have the lateral dimensions of the key 12.
  • the lever 18 is reinforced by the reinforcing rib 20 such that the area 22 is more flexible than the lever 18.
  • a switching element in the form of a pressure switch 30 and the pressure piece 31 are shown in the figures, which are opposite to each other, that upon pivoting of the lever 18, the pressure piece 31 is in operative connection with the pressure switch 30 to switch it.
  • Figs. 4 to 6 show the operation of this embodiment.
  • the key 12 moves about the pivot axis 24 by the angle ⁇ (Fig. 6). Due to the fixation of the lever 18 on the pivot axis 14, the lever 18 thereby moves by an angle ⁇ (FIG. 6).
  • the pressure piece 31 comes into contact with the pressure switch 30.
  • the embodiment with two pivot axes 14, 24 ensures that the angle ⁇ , by which the key 12 pivots, is smaller than the angle ⁇ , by which the lever 18 pivots. The user gets approximately the impression that the key 12 moves exclusively in the printing direction A, without any pivoting being present.
  • the flexible portion 22 is replaced by a hinge or by a loose connection, in which the lever 18 rests only on the key 12.
  • the lever 18 is e.g. biased by a separate spring against the button 12.
  • FIGS. 8 to 10 show a second embodiment 38 of a switching unit according to the invention.
  • a flexible circuit board 40 On the back of the panel 10 is a flexible circuit board 40, z.
  • a printed circuit board or board As a printed circuit board or board, provided, which is explained in more detail with reference to FIG. 9.
  • Fig. 9 shows the circuit board mounted on the switching elements 30 and light-emitting diodes 56, which serve, for example, to illuminate the switching unit or to indicate operating conditions of the household appliance operated therewith.
  • some of the light-emitting diodes 56 are arranged in such a way and extend through the printed circuit board 40 that they can illuminate the button 12 from behind. It is also possible to use back-emitting LEDs.
  • Printed conductors which contact the switching elements and / or the light-emitting diodes, are not shown for the sake of simplicity.
  • An area 58 of the circuit board 40 is bent out of the plane.
  • Recesses 60 are provided between the switching elements 30, which serve to receive supports 44 of a lever group 42, which will be explained in more detail with reference to Fig. 10, which shows the front of the recognizable in Fig. 8 from the rear lever group 42.
  • the switching unit 38 has three similar Einzelschaltmaschineen. In FIG. 8, by way of example, the average individual switching unit is provided with reference numerals, while in FIG. 10 the reference numerals are indicated for a lateral individual switching unit.
  • An individual switching unit has a lever 68 with a first lever arm 64 and a second lever arm 66.
  • the lever group 42 is made of a plastic part in which a lever 68 is defined by two U-shaped slots 47, 48 in the plastic part. Through the U-shaped slots 47, 48 arise bridge-like material portions 50, 52 which connect the lever 68 with the remaining part of the lever assembly 42 and serve as a pivot bearing or bridge hinge.
  • 62 shows the pressure pieces, with which the first lever arms 64 in a manner to be explained on the switching elements 30 act.
  • 46 denotes a spray edge which improves the stability of the lever group 42 and serves as protection against external influences.
  • the lever group 42 is fixedly connected via supports 44 with the diaphragm 10, z. B. glued or screwed.
  • the folded-out region 58 of the printed circuit board 40 abuts against the respective second lever arms 66 of the individual switching units.
  • the respective first lever arms 64 are located in the view of FIG. 8 above the pressure switch 30.
  • Pressure on a key 12 acts on the second lever arm 66 of the corresponding individual switching unit.
  • a transmission of the pressure effect of the key 12 on the second lever arm 66 through the printed circuit board 40 is made possible by their flexibility.
  • the lever 68 pivots about the bridge hinge 50, 52, so that the first lever arm 64 presses on the pressure switch 30 via the pressure piece 62.
  • FIG. 11 shows a perspective top view, in which it can be seen that five keys 12 arranged in a circle are arranged, which group around a center key 78.
  • Fig. 12 shows a plan view in which is indicated by the broken section line XIII-XIII, which lateral section in Fig. 13 is visible.
  • Fig. 14 is a bottom plan view, and the section visible in Fig. 13 is also indicated by the broken line XIII-XIII.
  • the pressure switches 30 are mounted on a circular portion 72 of the flexible circuit board 71. Another area 74 of the printed circuit board is bent out of the printed circuit board 71 in parallel. Via the connection region 82, a middle region 80 of the printed circuit board 71 is connected to the region 74.
  • a middle button 78 is provided. Pressing the center button moves the central area 80 of the flexible printed circuit board 71 together with the pressure switch 76 in the illustration of Fig. 13 down or in the illustration of FIG. 15 upwards. The pressure switch 76 hits the center 75 of the switching unit 70 and is operated in this manner.
  • FIG. 16 to 20 show a combined switching unit 90 with a plurality of individual switching units comprising rotary knobs 94 and keys 12.
  • Fig. 16 shows an oblique plan view from the front, in which the handles 92 of the knobs 94 in the panel 10 can be seen.
  • Fig. 17 shows an oblique plan view of the rear side.
  • the keys 12 with a Lever group 42 are operated with levers 68, as explained with reference to FIGS. 8 to 10.
  • rotary knobs 94 are provided which have lower parts 96, which can be inserted from behind through the panel 10 and are explained in more detail with reference to FIG. 20.
  • rotary knobs 94 are provided which have lower parts 96, which can be inserted from behind through the panel 10 and are explained in more detail with reference to FIG. 20.
  • Fig. 17 the flexible circuit board 98 can be seen, which will be explained with reference to Fig. 18.
  • circuit board 98 traces which serve to contact the individual elements in a conventional manner.
  • the lower part 96 of a rotary knob 94 which is shown in FIG. 20, has an axle 104 with latching elements 110. From the axis 104, a region extends radially away, which here has the shape of a disk 106. Thereupon cam-like projections 108 are provided over different circumferential dimensions.
  • the lower parts 96 of the knobs 94 are inserted with their respective axis region through corresponding openings in the aperture 10.
  • On the outside of the rotary handles 92 are plugged to lock with the locking elements 110.
  • Between the disk 106 and the diaphragm 10 is the left-hand part of the printed circuit board 98, as shown in FIG. 18, so that the metallic flexible contact elements 102 come into contact with the cam 108.
  • the cams 108 Upon rotation of a knob 94, the cams 108 move past the metallic flexible contact bridges and press them against printed circuit boards 98 correspondingly provided conductor tracks for their mutual contacting. Different cams 108 act on different parts of the metallic flexible contact bridges, so that different interconnects are contacted. Depending on the position of the knob different electrical connections using the different cams on the circuit board 98 are generated in this way. For the sake of clarity, only the contact bridges 102 are shown in the lateral sectional view of FIG. 19 of the printed circuit board 98. In Fig. 20, in addition to explaining the cooperation with the cams 108, the flexible metal contact bridges 102 are shown attached to the printed circuit board 98 shown in Fig. 18.
  • the disk 106 has on its outer periphery a number of recesses 97 which cooperate with locking cam 95, which are indicated in Fig. 17. In this way, the knob 94 locks on rotation in predetermined angular positions.
  • Figs. 21 and 22 show another embodiment.
  • this embodiment has a knob 94, as it has already been explained as part of the embodiment of FIGS. 16 to 20.
  • the area with the knob 94 is protected by a cover plate 126 to the rear.
  • the switching units 11 and the knob 94 share a flexible circuit board 120, are provided on the LEDs 56 to illuminate the individual elements.
  • Fig. 22 shows the circuit board 120 in detail.
  • the left-hand extension 122 in FIG. 22 has pressure switches 30 which are operated by the switching units 11, as explained with reference to FIGS. 1 to 7.
  • circular part 123 has metallic flexible switching bridges 102, which are operated analogous to the description of the embodiment of FIGS. 16 to 20 by the knob 94.
  • On the circuit board 120 light-emitting diodes 56 are distributed to illuminate the buttons and switching elements.
  • the loop 124 serves to support against the end plate 126 and may e.g. also be used for grounding.
  • Reference numeral 128 denotes attachment points, e.g. B. openings for clicking on holding elements 129, as can be seen in Fig. 21.
  • the light-emitting diodes 56 protrude through the printed circuit boards.
  • FIGS. 16 to 20 on the one hand and FIGS. 21 and 22 on the other hand have rotary knobs 94 and a plurality of switching units which can be operated by keys.
  • rotary knobs 94 and a plurality of switching units which can be operated by keys.
  • embodiments can be realized in which only one or more knobs or only one or more switching units are provided with buttons.
  • pressure switches can also be provided, which are arranged analogously to the pressure switches 30 of the embodiments of FIGS. 1 to 15 and are actuated with the aid of rotary knobs if the cams are correspondingly shaped.
  • flexible metal contact bridges as switching elements which are pressed onto tracks by keys and actuators in order to produce electrical connections there, the movement of the contact bridges being opposite to the movement of the keys.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Control Of Stepping Motors (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Vehicle Body Suspensions (AREA)
  • Mechanical Control Devices (AREA)
EP06010264A 2005-08-10 2005-08-10 Unité de commutation Withdrawn EP1770733A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05017414A EP1753001B1 (fr) 2005-08-10 2005-08-10 Unité de commutation

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP05017414A Division-Into EP1753001B1 (fr) 2005-08-10 2005-08-10 Unité de commutation
EP05017414A Division EP1753001B1 (fr) 2005-08-10 2005-08-10 Unité de commutation

Publications (1)

Publication Number Publication Date
EP1770733A1 true EP1770733A1 (fr) 2007-04-04

Family

ID=35677335

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06010264A Withdrawn EP1770733A1 (fr) 2005-08-10 2005-08-10 Unité de commutation
EP05017414A Active EP1753001B1 (fr) 2005-08-10 2005-08-10 Unité de commutation

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP05017414A Active EP1753001B1 (fr) 2005-08-10 2005-08-10 Unité de commutation

Country Status (3)

Country Link
EP (2) EP1770733A1 (fr)
AT (1) ATE376251T1 (fr)
DE (1) DE502005001750D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170017267A1 (en) * 2015-07-16 2017-01-19 Lenovo (Singapore) Pte. Ltd. Portable electronic apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4009343A1 (fr) * 2020-12-02 2022-06-08 BSH Hausgeräte GmbH Élément de commutateur, unité d'appareil ménager comprenant l'élément de commutateur et appareil ménager

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE824511C (de) * 1950-12-16 1951-12-13 Busch Jaeger Luedenschaeider M Kontakthebel fuer Nockenschalter
GB1585025A (en) * 1977-04-16 1981-02-18 Fischer K Electrical switch
US4272658A (en) * 1978-11-16 1981-06-09 Beckman Instruments, Inc. Multi-contact rotary switch
US4827241A (en) * 1987-10-30 1989-05-02 United Technologies Automotive, Inc. Combined, in-line spacer and switch, particularly for a vehicle's headlight
EP0661908A2 (fr) * 1993-12-31 1995-07-05 Samsung Electronics Co., Ltd. Interrupteur de commande pour un four à micro-ondes et circuit de commande à cet effet

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1765568B1 (de) * 1968-06-11 1971-05-27 Philips Patentverwaltung Lagerung eines drucktastenhebels an einer bedienungsseite eines gehaeuses insbesondere eines rundfunkempfangsgeraetes
DE2530341A1 (de) * 1975-07-08 1976-09-16 Braun Ag Schalter zum ausfuehren von mindestens zwei schalthandlungen
JPH0414328U (fr) * 1990-05-25 1992-02-05

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE824511C (de) * 1950-12-16 1951-12-13 Busch Jaeger Luedenschaeider M Kontakthebel fuer Nockenschalter
GB1585025A (en) * 1977-04-16 1981-02-18 Fischer K Electrical switch
US4272658A (en) * 1978-11-16 1981-06-09 Beckman Instruments, Inc. Multi-contact rotary switch
US4827241A (en) * 1987-10-30 1989-05-02 United Technologies Automotive, Inc. Combined, in-line spacer and switch, particularly for a vehicle's headlight
EP0661908A2 (fr) * 1993-12-31 1995-07-05 Samsung Electronics Co., Ltd. Interrupteur de commande pour un four à micro-ondes et circuit de commande à cet effet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170017267A1 (en) * 2015-07-16 2017-01-19 Lenovo (Singapore) Pte. Ltd. Portable electronic apparatus
US10401920B2 (en) * 2015-07-16 2019-09-03 Lenovo (Singapore) Pte Ltd Portable electronic apparatus having a push button

Also Published As

Publication number Publication date
DE502005001750D1 (de) 2007-11-29
EP1753001A1 (fr) 2007-02-14
EP1753001B1 (fr) 2007-10-17
ATE376251T1 (de) 2007-11-15

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