WO2008071375A2 - Dispositif de commande électrique - Google Patents

Dispositif de commande électrique Download PDF

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Publication number
WO2008071375A2
WO2008071375A2 PCT/EP2007/010761 EP2007010761W WO2008071375A2 WO 2008071375 A2 WO2008071375 A2 WO 2008071375A2 EP 2007010761 W EP2007010761 W EP 2007010761W WO 2008071375 A2 WO2008071375 A2 WO 2008071375A2
Authority
WO
WIPO (PCT)
Prior art keywords
magnet
sensor
control device
magnetic field
movement
Prior art date
Application number
PCT/EP2007/010761
Other languages
German (de)
English (en)
Other versions
WO2008071375A3 (fr
Inventor
Wolfgang Bredow
Thomas Burchard
Original Assignee
Integrated Electronic Systems !Sys Consulting 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 Integrated Electronic Systems !Sys Consulting Gmbh filed Critical Integrated Electronic Systems !Sys Consulting Gmbh
Publication of WO2008071375A2 publication Critical patent/WO2008071375A2/fr
Publication of WO2008071375A3 publication Critical patent/WO2008071375A3/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
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
    • 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
    • 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
    • G05G1/04—Controlling members for hand actuation by pivoting movement, e.g. levers

Definitions

  • the invention relates to an electrical control device with a magnetic field-sensitive sensor and a magnet spaced from the sensor, which is movable relative to the sensor, starting from a center position in both a first direction of movement and in a second direction of movement, wherein by means of the sensor dependent on the relative position of the magnet Control signal is available.
  • Such control devices are used, for example, in the form of radio remote controls, with the aid of which an electrically controllable device, for example an agricultural or forestry machine, can be controlled.
  • an electrically controllable device for example an agricultural or forestry machine
  • the magnet can be moved relative to the sensor and, depending on the position of the magnet relative to the sensor, this provides a control signal that can be transmitted to the machine to be controlled.
  • an electrical control device is described in the patent DE 103 04 595 B3.
  • the magnet can be moved relative to the sensor, starting from a middle position, both in a first direction of movement and in a second direction of movement.
  • usually several sensors are used, for example, three sensors, so that upon movement of the magnet, starting from its center position in the first direction of movement, the magnet is approached to a first sensor and at the same time a removal of a second sensor.
  • the sensor signal of the first sensor is thereby amplified and the sensor signal of the second sensor is weakened.
  • the different sensor signals can then be evaluated by means of an evaluation unit such that the direction of movement of the magnet can be detected.
  • Object of the present invention is therefore to develop an electrical control device of the type mentioned in such a way that in a structurally simpler manner, a control signal can be generated, which is dependent on the direction of movement of the magnet, starting from its center position.
  • a magnetic field is generated at the location of the sensor in a movement of the magnet starting from the center position in the first direction of movement, which is opposite to the magnetic field, which in a movement of the magnet from its center position in the second direction of movement at the location of the sensor is present.
  • the field lines of a magnet run from its north pole to its south pole.
  • the magnetic field in a movement of the magnet, starting from its middle position in the ste movement direction in a direction opposite to the magnetic field, which forms at the location of the sensor when the magnet is moved from its center position in the second direction of movement.
  • the magnetic field is aligned substantially parallel to the surface of the sensor when the magnet assumes its central position.
  • the magnetic field can be oriented obliquely or perpendicular to the surface of the sensor, the field lines facing the sensor surface. If, in contrast, the magnet is moved starting from its middle position in the second direction of movement, then the magnetic field can also be oriented obliquely or perpendicular to the surface of the sensor, although the field lines of the sensor surface are turned away.
  • the control signal generated by the sensor is dependent both on the magnitude and on the direction of the magnetic field prevailing at the location of the sensor.
  • a positive control voltage is generated, whereas a negative voltage signal is provided by the sensor when the magnet moves from its center position into the second direction of movement.
  • a single sensor required to generate by means of the electrical control device according to the invention from the direction of movement of the magnet, starting from the central position-dependent control signal.
  • the electrical control device can for example form a forward-reverse switch for driving an electric motor, which generates a forward movement in a movement of the magnet, starting from its central position in the first direction of movement and generates a movement of the magnet, starting from the central position in the second direction of movement of the forward movement opposite backward movement.
  • a load can be selectively raised or lowered by moving the magnet in the first or second direction of movement.
  • the respective distance of the magnet to the center position can serve as a measure of the speed of the driven electric motor.
  • the magnetic field prevailing at the location of the sensor is minimal. A deflection of the magnet from the center position then leads, regardless of the direction of movement, to an increase in the magnetic field prevailing at the location of the sensor.
  • the center position of the magnet can correspond to a zero position in which the electric motor controlled by the control device is stopped.
  • the senor is associated with a deflecting element for bundling the magnetic field lines emanating from the magnet.
  • a deflecting element may be in the form of a yoke which is made of a soft magnetic material, preferably of an iron material. With the aid of the deflecting element, the magnetic field lines can be guided and bundled, in particular in the region of the sensor.
  • the magnetic field lines pass to a greater extent on the sensor. bar are as in a different position of the magnet from the middle position.
  • the magnetic field lines in the central position of the magnet can be passed to a large extent on the sensor. With increasing deflection of the magnet from the center position then increases the density of the magnetic field lines at the location of the sensor.
  • the senor is arranged in the middle position of the magnet between the magnet and the deflecting element.
  • the deflecting element is thus located on the side of the sensor facing away from the magnet and guides at least part of the magnetic field lines around the sensor, so that the magnetic field is weakened at the location of the sensor when the magnet assumes its central position.
  • the deflection element has two legs, which are connected to one another on the side facing away from the magnet of the sensor via a web. It is particularly advantageous in this case if the legs are aligned perpendicular to the web.
  • the deflecting element is thus preferably U-shaped and the sensor is positioned between the two legs.
  • the senor is arranged centrally between the two legs, because thereby a symmetrical with respect to the center position of the magnet control signal can be generated.
  • the deflecting element has a post protruding from the web between the two legs, on which the sensor is mounted is arranged. As a result, the sensitivity of the sensor with respect to the direction of movement of the magnet can be increased.
  • the deflecting element is designed as a one-piece or multi-part sheet metal part. This allows a particularly cost-effective production of the deflecting element.
  • the magnet may be configured for example in the form of an electromagnet. It has proved to be advantageous, however, if it is designed as a permanent magnet, preferably as a bar magnet, because this can eliminate a power supply for the magnet.
  • the sensor is formed in an advantageous embodiment as a Hall sensor.
  • the movable magnet can be mounted, for example, displaceable or pivotable.
  • a pivotal mounting has proven to be particularly favorable.
  • a control signal can be generated with the aid of the sensor, the amount of which depends on the pivoting angle and its sign on the pivoting direction of the magnet.
  • control signal generated by the sensor is proportional to the deflection of the magnet from the middle position.
  • the magnet is held in an advantageous embodiment of the invention on a pivotally mounted actuating lever.
  • the lever may be formed with two arms, wherein a first lever arm as a handle for the loading serves user and the second lever arm, preferably in the region of the free end, the magnet is arranged.
  • the control device has an actuating part and a closed housing, wherein the actuating part is detachably connectable to the housing and the magnet comprises, and wherein the housing receives a printed circuit board on which Sensor is arranged.
  • the housing can accommodate an electrical evaluation unit, which is also protected by the positioning within the housing from external influences.
  • the actuating part receives the movable magnet.
  • the magnet may for example be pivotally mounted in the actuating part. In contrast to the sensor, the magnet is very insensitive to moisture and dirt.
  • the entire actuating part, including the magnet can be exchanged in a simple manner.
  • the actuating part on the housing is releasably held.
  • the actuating part may for example be screwed or locked to the housing.
  • the actuating part comprises a releasably connectable to the housing base part in which a pivotable or displaceable actuating member is mounted, wherein the actuating member of the magnet is arranged.
  • the actuator may be formed for example in the form of a sliding part, which is mounted displaceably in a guide formed by the base part and receives the magnet.
  • the actuating member is designed as a two-armed pivot lever, wherein a first Schwenkhebelarm protrudes from the base part and wherein the magnet is arranged on the second Schwenkhebelarm.
  • the first Schwenkhebelarm can form a handle by means of which the user can pivot the magnet relative to the sensor both in a first direction of movement and in a direction opposite to the first direction of movement second direction of movement.
  • Figure 1 A sectional view of a first embodiment of an electrical control device according to the invention
  • FIG. 2 shows a schematic representation of the control signal which can be generated by means of the control device according to FIG. 1;
  • FIG. 3 shows a partial sectional view of a second embodiment of an electrical control device according to the invention with a magnet in a middle position; 4 shows a partial sectional view according to FIG. 3, wherein the magnet is pivoted starting from its middle position in a first direction of movement and
  • Figure 5 a partial sectional view according to Figure 3, wherein the magnet is deflected starting from its central position in a second direction of movement.
  • FIG. 1 shows schematically a first embodiment of an electrical control device is shown, which is generally occupied by the reference numeral 10. It comprises an actuating part 12 and a closed, preferably dust and / or watertight housing 14. Within the housing, an electrical circuit board 16 is arranged, on the upper side of which a magnetic-field-sensitive sensor, in the illustrated embodiment a Hall sensor 18, is arranged. On the side facing away from the Hall sensor 18 bottom 20 carries the circuit board 16 made of a soft magnetic material, preferably an iron material magnetic deflection element 22 with a voltage applied to the bottom 20 web 23, the two perpendicular to the web 23 aligned and immersed in the circuit board 16, the Circuit board 16 preferably cross-leg, 24, 25 integrally connected to each other.
  • a magnetic-field-sensitive sensor in the illustrated embodiment a Hall sensor 18
  • an electrical evaluation unit 28 is disposed in the housing 14, which is known per se and therefore in the drawing not shown electrical connecting lines is connected to the Hall sensor 18.
  • the housing 14 forms a recess 30.
  • a base part 32 of the operating part 12 with a base plate 34 is immersed, which is detachably connected to the housing 14 in the drawing to achieve a better overview, not shown releasable connecting elements, such as connecting screws or latching hooks.
  • the base plate 34 is integrally connected on its side facing away from the housing 14 with a hood 36 which has an elongated opening 37 on its upper side facing away from the housing 14.
  • an actuating member in the form of a two-armed pivot lever 40 is pivotally mounted about a pivot axis 39, the first Schwenkhebelarm 41, the opening 37 passes through and upward, d. H.
  • the second Schwenkhebelarm 42 is disposed within the hood 36 and carries, adjacent to its free end, a magnet, which is formed in the illustrated embodiment as a cuboid bar magnet 44.
  • Both the actuating part 12 and the housing 14 are made of a plastic material and thus permeable to the magnetic field generated by the bar magnet 44.
  • the magnetic field is detected by the Hall sensor 18.
  • the Hall sensor 18 Depending on the position of the magnet 44 relative to the Hall sensor 18, the Hall sensor 18 provides an electrical control signal, which is shown simplified in Figure 2 in a coordinate system.
  • the deflection of the pivoting lever 40 is shown on the abscissa and the ordinate shows the output voltage of the Hall sensor 18 as a function of the deflection of the pivoting lever 40. It is clear that the control signal of the Hall sensor 18 is proportional to the deflection of the pivot lever 40 and thus also proportional to the deflection of the bar magnet 44.
  • the deflection is 0% and from the Hall sensor 18, a control voltage in the amount of 2.5 volts is provided. If the pivot lever 44 is pivoted in the clockwise direction so far that the first Schwenkhebelarm 41 rests on the right edge of the opening 37, the deflection is +100% of the maximum deflection and the Hall sensor 18, a control voltage of about 4.7 volts is generated. If the pivot lever 40 is pivoted counterclockwise so far that the first Schwenkhebelarm 41 rests on the left edge of the opening 37, the deflection is -100% of the maximum deflection and the Hall sensor 18 is a control voltage in the amount of about 0.3 volts provided. The control signal is thus dependent both on the direction of movement and on the distance of the bar magnet 44 relative to the Hall sensor 18.
  • the electrical control device 10 may be designed in particular in the form of a radio remote control device, with the aid of which an electrical device, in particular an electric motor, can be controlled. By pivoting the pivot lever 40, both the speed and the direction of rotation of the electric motor can be specified.
  • FIGS. 3 to 5 show a second embodiment of an electrical control device, which is designated overall by the reference numeral 50. This is largely identical to the previously described with reference to Figure 1 control device 10. In Figures 3, 4 and 5, the same reference numerals are therefore used for identical components as in FIG. 1. With regard to these components, reference is made to the above explanations in order to avoid repetition.
  • the electric control device 50 differs from the control device 10 substantially in that a bar magnet 54 is used, which is curved in a circular arc.
  • the electrical control device 50 is shown, wherein the pivot lever 40 and thus also its bar magnet 54 occupies a central position. In this middle position, the deflecting element 22 of the control device 50 is arranged on the side facing away from the bar magnet 54 side of the Hall sensor 18.
  • the magnetic field generated by the bar magnet 54 is illustrated schematically in FIGS. 3, 4 and 5 by the field lines 56.
  • the field lines 56 extend from the north pole N of the bar magnet 54 to the south pole S. In the middle position of the bar magnet 54, the field lines 56 emanating from the north pole N meet at a short distance from the north pole N to the first leg 24 of the deflecting element 22.
  • the field lines run mostly within the deflection element 22 to the free end of the second leg 25, from which they extend to the south pole S.
  • the deflection element 22 thus bundles the field lines 56 and, in the middle position of the bar magnet 54, largely guides them past the Hall sensor 18.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

L'invention concerne un dispositif de commande électrique comprenant un capteur sensible aux champs magnétiques et un aimant à distance du capteur lequel, en partant d'une position médiane, peut se déplacer dans une première direction de déplacement ainsi que dans une deuxième direction de déplacement par rapport au capteur. Grâce au capteur, un signal de commande peut être mis à disposition, lequel dépend de la position relative de l'aimant. L'invention vise à développer le dispositif de commande de manière à pouvoir générer un signal de commande de manière simple du point de vue constructif, lequel dépend de la direction de déplacement de l'aimant en partant de la position médiane de celui-ci. A cet effet, la direction du champ magnétique qui règne à l'emplacement du capteur peut être changée en différentes directions de déplacement en déplaçant l'aimant en partant de la position médiane.
PCT/EP2007/010761 2006-12-11 2007-12-11 Dispositif de commande électrique WO2008071375A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006059822.9 2006-12-11
DE102006059822A DE102006059822A1 (de) 2006-12-11 2006-12-11 Elektrische Steuereinrichtung

Publications (2)

Publication Number Publication Date
WO2008071375A2 true WO2008071375A2 (fr) 2008-06-19
WO2008071375A3 WO2008071375A3 (fr) 2008-12-11

Family

ID=39363286

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/010761 WO2008071375A2 (fr) 2006-12-11 2007-12-11 Dispositif de commande électrique

Country Status (2)

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DE (1) DE102006059822A1 (fr)
WO (1) WO2008071375A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109451754A (zh) * 2016-07-21 2019-03-08 川崎重工业株式会社 操作装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009003485U1 (de) * 2009-03-13 2010-07-22 Rema Lipprandt Gmbh & Co. Kg Joystick
JP5769339B2 (ja) * 2011-08-03 2015-08-26 アルプス電気株式会社 磁気式スイッチ装置
DE102016117021A1 (de) * 2016-09-09 2018-03-15 Nbb Holding Ag Bediengerät
DE102016117022A1 (de) 2016-09-09 2018-03-15 Nbb Holding Ag Eingabevorrichtung zum Eingeben eines Steuerbefehls und Bediengerät mit einer derartigen Eingabevorrichtung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993020535A2 (fr) * 1992-03-25 1993-10-14 Penny & Giles Blackwood Limited Manette de commande
WO2001069343A1 (fr) * 2000-03-17 2001-09-20 Penny & Giles Controls Limited Manche a balai

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4333395C2 (de) * 1993-09-30 2002-03-21 Tyco Electronics Logistics Ag Hall-Näherungsschalter mit drei Schaltstellungen
US6501458B2 (en) * 1999-06-30 2002-12-31 Caterpillar Inc Magnetically coupled input device
EP1300751A1 (fr) * 2000-02-02 2003-04-09 Next Corporation Dispositif de commande de type levier
DK1180778T3 (da) * 2000-08-18 2008-02-18 Ranco Inc Tristabilt relæ
JP3934394B2 (ja) * 2001-10-30 2007-06-20 アルプス電気株式会社 ハプティック入力装置
DE10304595B3 (de) * 2003-02-05 2004-10-07 Integrated Electronic Systems !Sys Consulting Gmbh Schaltvorrichtung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993020535A2 (fr) * 1992-03-25 1993-10-14 Penny & Giles Blackwood Limited Manette de commande
WO2001069343A1 (fr) * 2000-03-17 2001-09-20 Penny & Giles Controls Limited Manche a balai

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109451754A (zh) * 2016-07-21 2019-03-08 川崎重工业株式会社 操作装置

Also Published As

Publication number Publication date
WO2008071375A3 (fr) 2008-12-11
DE102006059822A1 (de) 2008-06-12

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