WO2016177382A1 - Dispositif de commande, notamment pour un appareil domestique électronique - Google Patents

Dispositif de commande, notamment pour un appareil domestique électronique Download PDF

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Publication number
WO2016177382A1
WO2016177382A1 PCT/EP2015/000899 EP2015000899W WO2016177382A1 WO 2016177382 A1 WO2016177382 A1 WO 2016177382A1 EP 2015000899 W EP2015000899 W EP 2015000899W WO 2016177382 A1 WO2016177382 A1 WO 2016177382A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiation
cover plate
operating
diode element
receiving element
Prior art date
Application number
PCT/EP2015/000899
Other languages
German (de)
English (en)
Inventor
Thomas Frommelt
Ralph Stohr
Andreas Maigler
Original Assignee
Diehl Ako Stiftung & Co. Kg
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 Diehl Ako Stiftung & Co. Kg filed Critical Diehl Ako Stiftung & Co. Kg
Priority to DE112015006507.5T priority Critical patent/DE112015006507A5/de
Priority to PCT/EP2015/000899 priority patent/WO2016177382A1/fr
Publication of WO2016177382A1 publication Critical patent/WO2016177382A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K17/9627—Optical touch switches
    • H03K17/9631—Optical touch switches using a light source as part of the switch
    • H03K17/9636—Optical touch switches using a light source as part of the switch using a pulsed light source
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/968—Switches controlled by moving an element forming part of the switch using opto-electronic devices

Definitions

  • the present invention relates to an operating device, in particular an operating device for electronic household appliances.
  • capacitive pushbuttons cf., for example, DE 10 201 1 121 897 A1
  • inductive pushbuttons cf., for example, EP 2 529 484 B1
  • piezoelectric pushbuttons cf. For example EP 2 063 533 B1
  • pushbuttons with optical sensor systems have recently been developed.
  • the operating device of the invention comprises a cover plate with a user-facing user side and an inner side facing away from the user, wherein the Cover plate defines an operating portion and in this operating section at least partially elastically deformable and / or designed movable, and an optical sensor for detecting a pressure actuation in the region of the operating portion of the cover plate.
  • the optical sensor has a diode element, which is arranged at a distance from the user side of the cover plate to this spaced and alternately as a radiation emission element and as a radiation receiving element is operable.
  • a control device is provided, which is designed to control the diode element alternately for operation as a radiation emission element and to operate as a radiation receiving element and to evaluate a received signal supplied by the diode element during operation as a radiation receiving element. Furthermore, a buffer device is provided, which is configured to buffer a radiation energy of an electromagnetic radiation emitted by the diode element during operation as a radiation emission element and to emit the buffered radiation energy as electromagnetic radiation during the operation of the diode element as radiation receiving element.
  • a diode element is operated alternately as a radiation emission element and as a radiation receiving element. It can therefore be dispensed with an additional receiving element and an optical separation between transmitting and receiving element. As a result, the number of components can be reduced and the structure of the operating device can be simplified.
  • the detection of a pressure actuation of the operating section of the operating device is made possible by the buffer device in this alternating use of the diode element as a radiation emission element and as a radiation receiving element.
  • the buffer device can receive and store radiation energy of the electromagnetic radiation emitted by the diode element.
  • the buffer device then emits the stored radiation energy as electromagnetic radiation over a certain period of time.
  • the received signal generated by the diode element during operation as a radiation receiving element due to the received electromagnetic radiation then depends in particular on whether or not there is a pressure actuation in the region of the operating section of the cover plate.
  • the cover plate may in principle be made of any material (e.g., transparent or opaque, electrically conductive or electrically non-conductive, etc.), of any dimension, and of any design.
  • the operating device according to the invention is particularly suitable for use with metallic cover plates.
  • the cover plate is preferably a control panel, for example, an electronic household appliance.
  • the operating section is preferably formed integrally with the cover plate, used as a separate component in the cover plate or connected as a separate component fixed to the cover plate.
  • the operating section defines for the user an operating element of the operating device which he must press to actuate. That the operating section forms a pushbutton which can be actuated by the action of force.
  • the operating section may preferably be additionally identified for the user, preferably by a special shaping of his user side (haptic identification), an identification with colors and / or symbols and the like.
  • the operating section is at least partially elastically deformable and / or movable by a force from the user side of the cover plate forth.
  • the elastic deformability is preferably achieved by a special choice of material and / or a special dimensioning (esp. In the thickness direction) of the operating section.
  • the elastic mobility can preferably be realized by a spring-mounted mounting of the operating section in an opening in the cover plate.
  • the electromagnetic radiation which can be emitted or detected by the diode element is preferably optical radiation, preferably in the visible or infrared wavelength range.
  • the diode element preferably has one or more diodes.
  • this at least one diode preferably functions as a light-emitting diode; during operation of the diode element as a radiation-receiving element, this at least one diode preferably functions as a photodiode.
  • the operating device of the invention in addition to the force-actuable pushbutton whose operation is detected by the optical sensor, optionally contain further operating elements with other functions. In particular, touch-sensitive and / or proximity-sensitive buttons can be used.
  • the buffer device can be configured and arranged such that the radiation emitted by the buffer device can be changed by a pressure actuation in the region of the operating section of the cover plate.
  • the change in the emitted radiation preferably relates to a change in the direction, the intensity and / or the wavelength of the radiation.
  • the buffer device can be designed and arranged such that a reflection of the radiation emitted by the buffer device on the inside of the cover plate can be changed by a pressure actuation in the region of the operating section of the cover plate.
  • a buffer device is to be understood as any type of device which is capable of absorbing electromagnetic radiation, converting it into any form of energy, storing the energy over a specific period of time, converting the stored energy back into electromagnetic radiation, and to release this electromagnetic radiation again.
  • a buffer device has at least one luminescent element.
  • the buffer device may have a luminescent layer, which is arranged in the region of the operating section on the inside of the cover plate. With a push-button operation in the area of the operating section also this luminescent layer elastically deformed or moved.
  • the electromagnetic radiation emitted by the luminescent layer thus preferably changes its direction and / or its intensity, which can be detected by the diode element operated as a radiation-receiving element and recognized by the control device as an actuation of the operating device.
  • control device can be designed to actuate the diode element in a predetermined cycle for operation as a radiation emission element and to operate as a radiation receiving element.
  • control device can be designed to detect whether a basic signal level of the received signal supplied by the diode element during operation as a radiation receiving element falls below a predetermined limit value. If the control device detects that the basic signal level of the received signal falls below the predetermined limit value, the control device can preferably drive the diode element again as a radiation emission element in order to recharge the buffer device. Alternatively or additionally, upon detection of a too low basic signal level of the received signal, the control device may conclude that the buffer device is no longer sufficiently functional.
  • the cover plate in the region of the operating section can be configured at least partially translucent.
  • the buffer device can also be used for backlighting or visual marking of the operating section for the user.
  • the invention also relates to an electronic household appliance with at least one operating device of the invention described above.
  • the electronic household appliance is preferably a laundry treatment appliance (washing machine, tumble dryer, etc.), a dishwasher, a refrigerator and / or freezer, a hob, a stove, a microwave oven, an extractor hood or the like.
  • Fig. 1 is a sectional view of an operating device according to an embodiment of the invention.
  • Fig. 2A is an illustration for illustrating the operation of the diode element as
  • 3A is a diagram illustrating the operation of the diode element as
  • Radiation receiving element if there is no pressure actuation in the area of the operating section; 3B is a waveform of a received signal from the diode element for the
  • 4A is a diagram illustrating the operation of the diode element as
  • 4B is a waveform of an activation signal to the diode element for the
  • FIG. 4A Operating state of Fig. 4A; Fig. 5A is an illustration for illustrating the operation of the diode element as
  • 5B is a waveform of a received signal from the diode element for the
  • the operating device has a Abdeckpiatte 10 in the form of a control panel.
  • the Abdeckpiatte 10 is made for example of metal (eg stainless steel sheet) or an opaque plastic material.
  • the Abdeckpiatte 10 has a user-facing user side 10a (top in Fig. 1), which corresponds to the outside of the control panel, and a user facing away from the inside 10b (bottom in Fig. 1).
  • the Abdeckpiatte 10 has an operating section 12, which defines a control for the user, he can operate.
  • the operating section 12 is integrated in the cover plate 10 or integrally formed therewith or inserted as a separate component in this and optionally connected to this.
  • the operating portion 12 is configured to be elastically deformable or movable by a force F from the user side 10a, for example with a user's finger. That After completion of the force F, the operating section 12 returns in each case back to the initial state shown in Fig. 1.
  • the operating device further has a carrier plate 14, for example in the form of a printed circuit board.
  • This support plate 14 is aligned substantially parallel to Abdeckpiatte 10 and on the side facing away from the user side 10a of Abdeckpiatte 10 spaced therefrom arranged.
  • On this support plate 14 is - in this embodiment on its Abdeckpiatte 10 side facing - arranged at a position corresponding to the operating section 12, a diode element 16 of an optical sensor.
  • the diode element 16 has one or more diodes.
  • the diode element 16 is connected to a control device 18 (conducted or wireless). This control device 18 may for example also be arranged on the carrier plate 14.
  • the diode element 16 is designed or connected in such a way in the optical sensor that it can optionally be operated as a radiation emission element for emitting electromagnetic radiation E or as a radiation receiving element for detecting electromagnetic radiation L.
  • the radiation is preferably radiation in the visible wavelength range or infrared radiation.
  • the controller 18 drives the diode element 16 by means of an activation signal A to operate as a radiation emission element or a radiation receiving element.
  • the controller 18 evaluates the received signal R relayed from the diode element 16 to determine whether or not a user operates the operating device.
  • a luminescent layer 20 is also arranged, for example glued or applied, in the region of the operating section 12 on the inner side 10b of the cover plate 10. This luminescent layer 20 is a luminescent element of a buffer device in the sense of the invention.
  • the combination of a single diode element which can be operated as a radiation emission element and as a radiation receiving element, and the buffer device can be dispensed with in contrast to conventional operating devices with optical sensors on a separate receiver and an optical separation between transmitter and receiver.
  • the operating device can therefore be constructed and mounted very simply with few components and thus cost-effectively.
  • the operation of this operating device will be explained in more detail with reference to FIGS. 2 to 5.
  • the sub-figures A show in each case highly abstracted the operating device, while the sub-figures B each show the waveform of the activation signal A and the received signal R.
  • Figs. 2 and 3 show a state of the operating device in which no pressing operation F is applied to the operating portion 12 of the cover plate 10, i. in which the operating device is not actuated.
  • FIG. 2B shows the activation of the diode element 16 by the control device 18 with the activation signal A.
  • the control device 18 alternately controls the diode element 16 as a radiation emission element (see Fig. 2A) and as a radiation receiving element (see Fig. 3A) .
  • the diode element transmits electromagnetic radiation E in the direction of Inside 10b of the cover 10 from.
  • the electromagnetic radiation E strikes the luminescent layer 20 and is absorbed by it by exciting the luminescent substance.
  • the luminescent layer 20 emits the stored radiation energy in the form of fluorescence radiation L again.
  • This electromagnetic radiation L can now be detected by the diode element 16 in operation as a radiation receiving element.
  • the corresponding received signal R which is supplied from the diode element 16 to the control device 18, thus decreases over time (see Fig. 3B).
  • the control device 18 evaluates this received signal R and detects on the basis of the gradual decrease of the received signal R over time that no pressure actuation of the operating section 12 has taken place.
  • control device 18 can optionally also monitor whether the signal level of the received signal R is above a predetermined basic signal level Rlimit. In one embodiment, the control of the diode element 16 takes place in a fixed predetermined clock. If the level of the received signal R falls below the limit value Rlimit, then it is assumed that a malfunction exists, for example in the radiation emission of the diode element, in a defect of the luminescent layer or in the radiation detection of the diode element 16.
  • control device 18 can also drive the diode element 16 variably. If the level of the received signal R falls below the limit value Rlimit, then the control device 18 again activates the diode element 16 as a radiation emission element in order to "recharge" the luminescent layer 20.
  • Figs. 4 and 5 show a state of the operating device at a press operation F on the operating portion 12 of the cover plate 10, i. upon actuation of the operating device.
  • FIG. 4A shows, analogously to FIG. 2B, the activation of the diode element 16 by the controller 18 with the activation signal A.
  • the activation signal A is of course unchanged regardless of an operation or non-operation of the operating device.
  • the storage of the radiation energy in the luminescent layer 20 also takes place independently of an actuation or non-actuation of the operating device.
  • the operating device has an opaque cover.
  • the cover 10 may be configured in the region of the operating section 12 but also at least partially translucent.
  • the luminescent layer 20 can emit the electromagnetic radiation L (in this case preferably in the visible wavelength range) also in the direction of the cover plate 10 and thus backlight the operating section 12.

Landscapes

  • Push-Button Switches (AREA)

Abstract

L'invention concerne un dispositif de commande pour un appareil domestique électronique, comprenant une plaque de recouvrement (10) dotée d'un côté utilisateur (10a) tourné vers l'utilisateur et d'un côté intérieur (10b) opposé à l'utilisateur, la plaque de recouvrement (10) définissant une partie de commande (12) et étant configurée dans cette partie de commande (12) de manière au moins partiellement déformable élastiquement et/ou de manière mobile, et un capteur optique pour la détection d'un actionnement par pression (F) dans la région de la partie de commande (12) de la plaque de recouvrement (10). Le capteur optique comprend à son tour un élément de diode (16) qui est disposé sur un côté de la plaque de recouvrement (10) opposé au côté utilisateur (10a) et à distance de celle-ci et peut fonctionner en alternance en tant qu'élément d'émission de rayonnement et en tant qu'élément de réception de rayonnement. Un dispositif de commande (18) commande l'élément de diode (16) en alternance pour le fonctionnement en tant qu'élément d'émission de rayonnement et le fonctionnement en tant qu'élément de réception de rayonnement et évalue un signal de réception (R) délivré par l'élément de diode (16) en fonctionnement en tant qu'élément de réception de rayonnement. L'invention concerne en outre un dispositif tampon qui stocke temporairement une énergie de rayonnement d'un rayonnement électromagnétique émis par l'élément de diode (16) en fonctionnement en tant qu'élément d'émission de rayonnement et restitue sous forme de rayonnement électromagnétique (L) l'énergie de rayonnement stockée temporairement pendant le fonctionnement de l'élément de diode (16) en tant qu'élément de réception de rayonnement.
PCT/EP2015/000899 2015-05-02 2015-05-02 Dispositif de commande, notamment pour un appareil domestique électronique WO2016177382A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112015006507.5T DE112015006507A5 (de) 2015-05-02 2015-05-02 Bedienvorrichtung, insbesondere für ein elektronisches Haushaltsgerät
PCT/EP2015/000899 WO2016177382A1 (fr) 2015-05-02 2015-05-02 Dispositif de commande, notamment pour un appareil domestique électronique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/000899 WO2016177382A1 (fr) 2015-05-02 2015-05-02 Dispositif de commande, notamment pour un appareil domestique électronique

Publications (1)

Publication Number Publication Date
WO2016177382A1 true WO2016177382A1 (fr) 2016-11-10

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ID=53039845

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/000899 WO2016177382A1 (fr) 2015-05-02 2015-05-02 Dispositif de commande, notamment pour un appareil domestique électronique

Country Status (2)

Country Link
DE (1) DE112015006507A5 (fr)
WO (1) WO2016177382A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0558871A1 (fr) * 1992-03-03 1993-09-08 Elma Electronic Ag Touche à structure feuilletée
CN202978880U (zh) * 2012-11-19 2013-06-05 珠海市魅族科技有限公司 一种触控按键及使用该触控按键的终端设备

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0558871A1 (fr) * 1992-03-03 1993-09-08 Elma Electronic Ag Touche à structure feuilletée
CN202978880U (zh) * 2012-11-19 2013-06-05 珠海市魅族科技有限公司 一种触控按键及使用该触控按键的终端设备

Also Published As

Publication number Publication date
DE112015006507A5 (de) 2018-04-05

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