WO2016075364A1 - Commutateur rotatif - Google Patents

Commutateur rotatif Download PDF

Info

Publication number
WO2016075364A1
WO2016075364A1 PCT/FI2015/050773 FI2015050773W WO2016075364A1 WO 2016075364 A1 WO2016075364 A1 WO 2016075364A1 FI 2015050773 W FI2015050773 W FI 2015050773W WO 2016075364 A1 WO2016075364 A1 WO 2016075364A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotary
encoder
switch
rotary switch
knob
Prior art date
Application number
PCT/FI2015/050773
Other languages
English (en)
Inventor
Simo KUUTTI
Original Assignee
Kemppi Oy
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 Kemppi Oy filed Critical Kemppi Oy
Publication of WO2016075364A1 publication Critical patent/WO2016075364A1/fr

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
    • G05G1/10—Details, e.g. of discs, knobs, wheels or handles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H25/00—Switches with compound movement of handle or other operating part
    • H01H25/06—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement
    • H01H25/065—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement using separate operating parts, e.g. a push button surrounded by a rotating knob
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
    • G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • 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
    • H01H19/001—Thumb wheel switches
    • H01H19/003—Thumb wheel switches having a pushbutton actuator
    • 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
    • H01H19/02—Details
    • H01H19/025—Light-emitting indicators
    • 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
    • H01H19/02—Details
    • H01H19/04—Cases; Covers
    • 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
    • H01H19/02—Details
    • H01H19/04—Cases; Covers
    • H01H19/06—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
    • 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
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/14—Operating parts, e.g. turn knob
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H25/00—Switches with compound movement of handle or other operating part
    • H01H25/06—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24428—Error prevention
    • G01D5/24433—Error prevention by mechanical means

Definitions

  • the present invention relates to rotary switches and especially to the construction of a rotary switch which is robust, as defined in the preambles of the independent claims.
  • a rotary switch here refers to a control unit for controlling functions of a device or apparatus by rotation.
  • Rotary switches are often based on rotary encoders which are electro-mechanical devices that convert the angular position or motion of a shaft or axle to an analog or digital code.
  • Rotary encoders are used in many applications that require precise shaft unlimited rotation including industrial controls, robotics, special purpose photographic lenses, computer input devices, such as optomechanical mice and trackballs, controlled stressrheometers, and rotating radar platforms.
  • An optical encoder refers here to a rotary encoder wherein the encoder's disc is made of glass or plastic with transparent and opaque areas.
  • a light source and photo detector array reads the optical pattern that results from the disc's position at any one time. This code can be read by a controlling device, such as a microprocessor or microcontroller to determine the angle of the shaft.
  • a magnetic encoder refers here to a rotary encoder which uses a series of magnetic poles to represent the encoder position to a magnetic sensor. The magnetic sensor reads the magnetic pole positions. This code can be read by a controlling device, such as a microprocessor or microcontroller to determine the angle of the shaft, similar to an optical encoder.
  • a capacitive encoder refers here to a rotary encoder wherein an asymmetrical shaped disc is rotated within the encoder. This disc will change the capacitance between two electrodes which can be measured and calculated back to an angular value.
  • rotary switches used as controls are due to their construction often not very robust and thus not suited for environments where they might be subjected to impact and spatter.
  • a rotary switch for use as a controller is constructed such that the axis is connecting a rotary knob with any functional element that are placed inside the device the encoder is controlling some functions of.
  • a disadvantage of this construction is that in case of an impact or strike of some kind to the rotary knob either the knob or the axis connected to the knob may easily break, since it is the weakest part of the construction,
  • the object of the present invention is to provide a rotary switch for use as a controller for controlling for example operations of an industrial device or some other device where robust and durable rotary controls are needed.
  • the objects of the present invention are achieved with a rotary switch according to the characterizing portions of the independent claims.
  • the present invention is directed to a rotary switch comprising a rotary knob for manual operation of the switch and a shaft around which the rotatory knob rotates, the shaft being hollow in order to hold functional elements of the encoder.
  • Shaft here refers to a fixed structure around which the rotary knob may rotate, and which structure is hollow in a manner in which a space inside said structure is formed. In this way sensitive elements of the rotary switch may be fitted inside the rotary switch thus making it less prone to breaking due to impact. Further advantages of the invention are discussed in more detail with description of embodiments of the invention. Brief description of the figures
  • Figure 1 is a cross-section of a rotary switch according to an embodiment according to the invention.
  • control units, methods and devices comprise elements that are generally known to a person skilled in the art and may not be specifically described herein.
  • the rotary switch according to the invention is intended as, but not restricted to, being fitted to for example a control unit and functioning as to let a user by rotating or pushing it control functions of the control unit.
  • the rotary switch according to the invention comprises a rotary knob which is a rotary part which may be rotated by a user to select between different settings or steps of a process in order to control a process or the like. Further the rotary switch comprises a shaft around which the rotary knob rotates. The shaft of the rotary switch is hollow in order to hold functional elements of the encoder.
  • the rota ry switch according to the invention may be implemented with a magnetic encoder, an optical encoder, a capacitive encoder or any other type of known encoder.
  • a rotary switch may vary depending on which type of encoding is used .
  • the functional elements of the rotary switch may comprise a circuit board, a magnet for creating a magnetic field and a magnetic encoder for sensing the direction of the magnetic field .
  • a magnet magnetized in the radial direction is used, all well known in the field .
  • the functional elements may comprise a circuit boa rd, an optically readable rotary scale coupled to the rotary knob and an optical sensor for sensing a position of the rotary knob from the portion of the rota ry scale.
  • a rotary switch 10 according to one embodiment of the invention is depicted as a cross-section.
  • the rotary switch comprises a rota ry knob 11 with a cover 12 preferably made from silicone rubber.
  • the rotary switch comprises a shaft 13.
  • the functional elements comprise a magnet 14 and a magnetic encoder 15.
  • the rotary switch 10 further comprises LED-lights 16 which are placed beside the magnetic encoder 15 for illumination, and a light conductor 17 for bringing the light from the LED-lights through the cover. Protruding lips 18 of the cover and o-rings 19 are preventing dirt from entering the encoder and sealing the cover.
  • a spring clip 20 is pressing inner wings 21 of the rotary knob outward for creating a detent.
  • the outer surface of the shaft comprises threads 22 or the like matching threads 23 on the rotary knob.
  • the rotary switch further comprises a dome switch 24.
  • the functional elements of the rotary encoder comprise LED-lights for illumination .
  • the LED-lights may be placed around the encoder for illumination.
  • a light conductor may be used for leading the light from the LED-lights to the top of the rotary knob.
  • the rotary knob may comprise a cover, preferably made from silicone rubber.
  • a cover made from an elastic material protects the rota ry switch from impact, i.e. due to a drop or ca reless handling .
  • a cover made from silicone rubber also protects the rotary switch from spatter and welding spa rks and the like in industrial environments.
  • the cover may also be shaped in order to absorb impact e.g. by rounding of corners. This may also be achieved by choice of material.
  • a cover made from rubber, silicone rubber or the like will absorb impact better than a harder material.
  • a shape without any sharp corners or rims is also beneficial in this sense and better absorption of shock also has the advantage of spreading of the energy resulting of an impact.
  • the cover may also be grooved or patterned for better grip, which may be useful when wearing working gloves. Better grip may also be enhanced by choice of material, e.g. a softer material gives better grip than a hard.
  • the size of the rotary knob is due to the axis being hollow, larger than in conventional encoders. This has several benefits for the user, some of them being better grip and being easier to use while wearing protecting glows.
  • Another advantage of the hollow axis is that all functional parts of the switch can be situated inside the switch, thus protected by the cover of the switch. This is especially advantageous as the functional elements will thus be protected and there are no week points. In conventional rotary switches such a weak point is e.g. the axis, at the point where it is fastened, and often penetrates a surface of for example the device it is to control. This is avoided by the encoder according to the invention as the axis does not extend outside the cover of the rotary knob and is thus protected from breaking.
  • the cover functions both as a push-button for selecting a function and a rotary switch for scrolling between functions.
  • a push of the button is detected as a change of the strength of the magnetic field and is detected by a magnetic encoder and interpreted as a selection of a function.
  • a change in the direction of the magnetic field detected by the magnetic encoder is interpreted as rotational movement by the rotary button.
  • the press button functions only when pressed in the middle or in other words in the centre of the top surface of the cover or top concentric. This is advantageous as impact to the cover of the rotary encoder due to a fall or careless handling will not erroneously be interpreted as a selection of a function. This is especially advantageous in industrial environments or while working with protective gloves which may more easily be the cause of dropping of the control device controlled by the rotary switch.
  • the rotary switch may comprise a dome switch for providing mechanical response for the push-button functionality. This is advantageous as this will give the user feedback and confirm when the button has been properly pushed and a function selected.
  • the rotary knob further comprises a spring clip and wings, where the spring clip is arranged to press the wings outward for causing a detent of the rotary switch.
  • the cover comprises a silicone rubber lip for preventing dirt from entering and o-rings for sealing of the cover.
  • a light conductor may be used for holding the magnet in place as well as for transmitting motion from the push button to the magnet.
  • the rotary switch comprises a flat cable extending from the rotary switch for connection of the switch to the device it is to control. This cable may either penetrate the surface of the device such as a screen, or be coupled without penetrating the surface.
  • the rotary encoder may attached by the edges.
  • the rotary switch may be installed on a screen in a manner where the edges of the rotary switch are extending over a part of the screen and thus covering it.
  • This allows for a solution where e.g. the scale of the value controlled by the rotary switch may be displayed on the display around the switch thus making the process of scrolling to scales and functions more visualized.
  • This manner of installation is also advantageous as the rotary encoder may be easily reinstalled if it comes off during use.
  • the invention provides an apparatus and a method by which a significant improvement can be achieved in the area of rotary switches for controlling of industrial applications.
  • the arrangement according to the present invention is easy and economical to realize by per se known components and reliable in use.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Abstract

La présente invention concerne un codeur rotatif et la construction d'un codeur rotatif, le codeur rotatif comprenant un bouton rotatif pour le fonctionnement manuel du codeur, et un axe autour duquel tourne le bouton rotatif, l'axe étant creux de manière à maintenir les éléments fonctionnels de l'encodeur.
PCT/FI2015/050773 2014-11-10 2015-11-09 Commutateur rotatif WO2016075364A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20145981A FI20145981A (fi) 2014-11-10 2014-11-10 Kiertokytkin
FI20145981 2014-11-10

Publications (1)

Publication Number Publication Date
WO2016075364A1 true WO2016075364A1 (fr) 2016-05-19

Family

ID=54707807

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2015/050773 WO2016075364A1 (fr) 2014-11-10 2015-11-09 Commutateur rotatif

Country Status (2)

Country Link
FI (1) FI20145981A (fr)
WO (1) WO2016075364A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110189952A (zh) * 2019-07-02 2019-08-30 青岛亿联客信息技术有限公司 一种旋转按键开关
GB2606756A (en) * 2021-05-20 2022-11-23 Njori Ltd A removable control device for communicating high resolution rotation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19636643C1 (de) * 1996-09-10 1998-02-12 Preh Elektro Feinmechanik Drehknopfoberteil
EP0974843A1 (fr) * 1998-07-21 2000-01-26 Mannesmann VDO Aktiengesellschaft Codeur tournant
WO2005024875A1 (fr) * 2003-09-11 2005-03-17 Preh Gmbh Élément de commande
DE102009042110A1 (de) * 2008-10-07 2010-04-08 ITT Manufacturing Enterprises, Inc., Wilmington Schnapp-Dreh-/Druckknopf-Anordnung mit einem magnetischen Encoder
US20130113465A1 (en) * 2011-11-04 2013-05-09 Delphi Technologies, Inc. Multiple function control knob assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19636643C1 (de) * 1996-09-10 1998-02-12 Preh Elektro Feinmechanik Drehknopfoberteil
EP0974843A1 (fr) * 1998-07-21 2000-01-26 Mannesmann VDO Aktiengesellschaft Codeur tournant
WO2005024875A1 (fr) * 2003-09-11 2005-03-17 Preh Gmbh Élément de commande
DE102009042110A1 (de) * 2008-10-07 2010-04-08 ITT Manufacturing Enterprises, Inc., Wilmington Schnapp-Dreh-/Druckknopf-Anordnung mit einem magnetischen Encoder
US20130113465A1 (en) * 2011-11-04 2013-05-09 Delphi Technologies, Inc. Multiple function control knob assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110189952A (zh) * 2019-07-02 2019-08-30 青岛亿联客信息技术有限公司 一种旋转按键开关
GB2606756A (en) * 2021-05-20 2022-11-23 Njori Ltd A removable control device for communicating high resolution rotation

Also Published As

Publication number Publication date
FI20145981A (fi) 2016-05-11

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