WO2017158583A1 - Transducteurs haptiques à profil mince - Google Patents

Transducteurs haptiques à profil mince Download PDF

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Publication number
WO2017158583A1
WO2017158583A1 PCT/IL2017/050135 IL2017050135W WO2017158583A1 WO 2017158583 A1 WO2017158583 A1 WO 2017158583A1 IL 2017050135 W IL2017050135 W IL 2017050135W WO 2017158583 A1 WO2017158583 A1 WO 2017158583A1
Authority
WO
WIPO (PCT)
Prior art keywords
coils
haptic transducer
transducer
housing
magnetic plate
Prior art date
Application number
PCT/IL2017/050135
Other languages
English (en)
Inventor
Mor Efrati
Original Assignee
Woojer Ltd
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 Woojer Ltd filed Critical Woojer Ltd
Publication of WO2017158583A1 publication Critical patent/WO2017158583A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1869—Linear generators; sectional generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
    • H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans

Definitions

  • the Faraday Effect shows how an electric current in a perpendicular magnetic field experiences a thrust in a third tangential direction. This is known as the Faraday Motor Effect. Similarly, movement of a wire within a magnetic field induces a current flow in what is known as the dynamo affect. Where the electrical conduit or wire is coiled, the effects are multiplied as each segment of the coil that is perpendicular to the magnetic field causes or experiences the thrust.
  • transducers that comprise arrangements of coils and magnets that uti I ize this effect. Some create vi brati ons i n response to current fluctuations in the coil and others convert physical movement into electronic signals. Essentially the same arrangement can be used for either purpose.
  • transducers may be designed to vibrate at vibrate significantly at specific desired frequencies or frequency ranges of applied electronic signals, or to generate significant electronic signals by vibrations of desired frequencies or frequency ranges.
  • a ura Systems launched the Interactor V est a wearable force- feedback device that monitors an audio signal and uses electromagnetic actuator technology to convert bass sound waves into vibrations that can represent such actions as a punch or ki ck.
  • T he Interactor vest pi ugs i nto the audi o output of a stereo, T V , or V C R and the user is provided with controls that allow for adjusting of the intensity of vibration and filtering out of high frequency sounds.
  • the Interactor V est is worn over the upper torso and the audio signal is reproduced through a speaker embedded in the vest.
  • a ura began shipping the Interactor Cushion, a device which operates like the V est but instead of being worn, it's placed against a seat back and the user must lean against it.
  • US 8,995,692 to Mor Efrati describes a number of transducers comprising various arrangements of coils and magnets that provide bass frequency and infra- sound vibrations that can be worn on the body and enhance the sensations of the wearer.
  • a bass vibrator can be worn together with earphones and will provide a more real i sti c musi c experi ence to the wearer than one weari ng earphones al one, si nee earphones do not effectively reproduce the low frequency notes.
  • V ery I ow frequency vi brati ons or i nf ra-sound may not be audi bly detected by someone, but they cause a feeling of trepidation that may be associated with fear of the unknown, spookiness, and the like. It has been theorized that it is the non-audible low frequency vibrations in a lion's roar that creates panic.
  • the transducer is characterized by having a slim profile, making it particularly suitable for a wide variety of uses such as inclusion in smart phones.
  • a first embodi merit i s di rected to a hapti c transducer compri si ng a magneti c plate, a plurality of coils each separately couplable to a signal generator such that axis of each coil is perpendicular to the plate and all coils are on a common side of the plate, and signals may be sent from said signal generator to each coil individually.
  • the haptic transducer comprises three or four coils arranged in a I ayer i n a non- 1 i near arrangement.
  • the coils are pancake coils.
  • the coils are helical coils.
  • the magnetic plate is a permanent magnetic disc.
  • one surface of the disc is North seeking and the opposite surface is South seeki ng.
  • one end is North seeking and the opposite end is South seeking.
  • the coils are adhered directly to the magnetic plate. In some embodiments, the coils are adhered to one side of a housing and the magnetic plate is adhered to an opposite side of the housing.
  • the coils are attached to one side of a housing and the magnetic plate is suspended within the housing by wires.
  • the housing comprises a material selected from the group comprising aluminum, copper, wood, cardboard, plastic, fiber reinforced polymer and spring steel.
  • Fig. 1 is a schematic i 11 ustrati onal view of a transducer in accordance with a f i rst embodi ment of the i nventi on from bel ow;
  • Fig. 2 is a schematic ill ustrati onal perspective side view of a transducer in accordance with a f i rst embodi ment of the i nventi on;
  • Fig. 3 is a schematic i 11 ustrati onal view of a transducer in accordance with a second embodiment of the invention from below;
  • Fig. 4 is a schematic ill ustrati onal side view of a transducer in accordance with a second embodiment of the invention.
  • the present invention is directed to providing a transducer that can be used for either generating electronic signals in response to physical movement or generating physical movement in response to electronic signals supplied thereto.
  • the transducer is characterized by having a slim profile, making it particularly suitable for a wide variety of uses such as inclusion in smart phones.
  • T he transducer 10 consists of a plate of ferromagnetic material 12 and a plurality of helical coils 14a, 14b, 14c separately couplable to a signal generator 16 such that the axis of each coil X (XX ) is perpendicular to the plate 12 and signals may be sent to each coil 14a, 14b, 14c individually. Although three coils are shown, a different number, such as four coils, for example, may be provided.
  • the plurality of coils are arranged in a single layer, but in a non-linear arrangement such that supplying separate asymmetrical signals to each coil can cause the plate of ferromagnetic material to be tugged in any desired direction.
  • the coils 14a, 14b, 14c may be conventional coils and the magnetic plate may be a permanent magnetic disc 12 such that the top surface thereof 13 is North Seeking and the bottom surface 11 is South Seeking.
  • the top surface thereof 13 is South Seeking and the bottom surface 11 thereof is North Seeking.
  • the coils 14a, 14b, 15c are adhered to one side of a surface 16 which may be part of a housing 18 covering the magnetic plate 12, where and the magnetic plate 12 is adhered to the opposite side of the coils.
  • the housing may be an open framework or a closed box and may serve like a sounding board, vibrating with the magnet.
  • the housing may comprise a non-ferromagnetic frame such as aluminum or copper, for example.
  • the non-magnetic plate may comprise a dielectric material such as wood, cardboard, plastic or a fiber reinforced polymer. It may also be ferromagnetic, comprising a spring steel, for example.
  • FIGs. 3 and 4 there is shown schematic views of a transducer 20 in accordance with a second embodiment of the invention from below and from the side.
  • this transducer 20 there are four pancake coils 24a, 24b, 24c, 24d.
  • the magnetic plate 22 may still be disc shaped, but may be magnetized in different ways. For example, a first end 21 of the magnetic plate 22 is North seeking and a second end 23 is South seeking. However, the magnetic plate need not be bar shaped and may still be disc-shaped.
  • pancake coils 24 are flat coils.
  • Pancake coils enable very low profile transducers to be made, such as suitable for inclusion within the casing of smartphones, tablet computers, laptop computers, WII boards and thin electronic games, for example.
  • helical coils can, in some instances be used for such applications.
  • the number of coils is arbitrary.
  • the first embodiment has three helical coils and the second has four pancake coils, but transducers of the invention may have different numbers, such as three pancake coils, four helical coils, or two hel i cal and two pancake coi I s, for exampl e.
  • the coils are adhered directly to the magnetic plate.
  • the coils are attached to one side of the housing and the magnetic plate is suspended within the housing by wires.
  • the coils and the magnetic plate are both attached to opposite si des of a frame.
  • T hey may be attached to the i nsi des of a housi ng, for example.
  • the word ' comprise , , and variations thereof such as ' comprises , , ' comprising , and the like indicate that the components listed are included, but not generally to the exclusion of other components.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

L'invention concerne un transducteur haptique comprenant une plaque magnétique, une pluralité de bobines pouvant être couplées chacune séparément à un générateur de signaux de telle sorte que l'axe de chaque bobine étant perpendiculaire à la plaque et que toutes les bobines sont sur un côté commun de la plaque, et des signaux peuvent être envoyés individuellement du générateur de signaux à chaque bobine.
PCT/IL2017/050135 2016-03-18 2017-02-05 Transducteurs haptiques à profil mince WO2017158583A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201662310143P 2016-03-18 2016-03-18
US62/310,143 2016-03-18

Publications (1)

Publication Number Publication Date
WO2017158583A1 true WO2017158583A1 (fr) 2017-09-21

Family

ID=59851753

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2017/050135 WO2017158583A1 (fr) 2016-03-18 2017-02-05 Transducteurs haptiques à profil mince

Country Status (1)

Country Link
WO (1) WO2017158583A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110972042A (zh) * 2018-09-28 2020-04-07 哈曼国际工业有限公司 双线圈差分驱动触觉换能器
US11484263B2 (en) 2017-10-23 2022-11-01 Datafeel Inc. Communication devices, methods, and systems
US11934583B2 (en) 2020-10-30 2024-03-19 Datafeel Inc. Wearable data communication apparatus, kits, methods, and systems

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6217508B1 (en) * 1998-08-14 2001-04-17 Symphonix Devices, Inc. Ultrasonic hearing system
WO2006028165A1 (fr) * 2004-09-09 2006-03-16 Namiki Seimitsu Houseki Kabushikikaisha Vibreur plat
US20130193779A1 (en) * 2012-01-30 2013-08-01 Minebea Motor Manufacturing Corporation Vibration generator moving vibrator by magnetic field generated by coil and holder used in vibration-generator
US20140321681A1 (en) * 2013-04-30 2014-10-30 Vibrant Med-El Hearing Technology Gmbh Lower Q Point Floating Mass Transducer
EP3002958A1 (fr) * 2014-10-01 2016-04-06 Woojer Ltd. Transducteur basse fréquence tactile

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6217508B1 (en) * 1998-08-14 2001-04-17 Symphonix Devices, Inc. Ultrasonic hearing system
WO2006028165A1 (fr) * 2004-09-09 2006-03-16 Namiki Seimitsu Houseki Kabushikikaisha Vibreur plat
US20130193779A1 (en) * 2012-01-30 2013-08-01 Minebea Motor Manufacturing Corporation Vibration generator moving vibrator by magnetic field generated by coil and holder used in vibration-generator
US20140321681A1 (en) * 2013-04-30 2014-10-30 Vibrant Med-El Hearing Technology Gmbh Lower Q Point Floating Mass Transducer
EP3002958A1 (fr) * 2014-10-01 2016-04-06 Woojer Ltd. Transducteur basse fréquence tactile

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11484263B2 (en) 2017-10-23 2022-11-01 Datafeel Inc. Communication devices, methods, and systems
US11589816B2 (en) 2017-10-23 2023-02-28 Datafeel Inc. Communication devices, methods, and systems
US11684313B2 (en) 2017-10-23 2023-06-27 Datafeel Inc. Communication devices, methods, and systems
US11864913B2 (en) 2017-10-23 2024-01-09 Datafeel Inc. Communication devices, methods, and systems
US11864914B2 (en) 2017-10-23 2024-01-09 Datafeel Inc. Communication devices, methods, and systems
US11931174B1 (en) 2017-10-23 2024-03-19 Datafeel Inc. Communication devices, methods, and systems
CN110972042A (zh) * 2018-09-28 2020-04-07 哈曼国际工业有限公司 双线圈差分驱动触觉换能器
CN110972042B (zh) * 2018-09-28 2023-05-12 哈曼国际工业有限公司 双线圈差分驱动触觉换能器
US11934583B2 (en) 2020-10-30 2024-03-19 Datafeel Inc. Wearable data communication apparatus, kits, methods, and systems

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