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1. WO2020001787 - MAGNET ACTUATOR FOR AN ELECTRONIC DEVICE AND ELECTRONIC DEVICE COMPRISING SAID MAGNET ACTUATOR

Publication Number WO/2020/001787
Publication Date 02.01.2020
International Application No. PCT/EP2018/067634
International Filing Date 29.06.2018
IPC
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
11
Transducers of moving-armature or moving-core type
02
Loudspeakers
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
7
Diaphragms for electromechanical transducers; Cones
02
characterised by the construction
04
Plane diaphragms
B PERFORMING OPERATIONS; TRANSPORTING
06
GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
B
GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
1
Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency
02
making use of electrical energy
04
operating with electromagnetism
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
K
SOUND-PRODUCING DEVICES;  METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
9
Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
12
electrically operated
13
using electromagnetic driving means
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
K
SOUND-PRODUCING DEVICES;  METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
9
Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
18
Details, e.g. bulbs, pumps, pistons, switches or casings
22
Mountings; Casings
H04R 11/02 (2006.01)
H04R 7/04 (2006.01)
B06B 1/04 (2006.01)
G10K 9/13 (2006.01)
G10K 9/22 (2006.01)
CPC
B06B 1/045
G10K 9/13
G10K 9/22
H04R 11/02
H04R 2440/07
H04R 7/045
Applicants
  • HUAWEI TECHNOLOGIES CO., LTD. [CN/CN]; Huawei Administration Building Bantian Longgang District Shenzhen, Guangdong 518129, CN
  • KESKIOPAS, Petri [FI/SE]; SE (US)
Inventors
  • KESKIOPAS, Petri; SE
  • MÄKI, Jouni, Tapio; SE
  • SUIKKOLA, Jani; SE
  • LOHIKOSKI, Jyrki; SE
Agents
  • KREUZ, Georg; DE
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MAGNET ACTUATOR FOR AN ELECTRONIC DEVICE AND ELECTRONIC DEVICE COMPRISING SAID MAGNET ACTUATOR
(FR) ACTIONNEUR MAGNÉTIQUE DESTINÉ À UN DISPOSITIF ÉLECTRONIQUE ET DISPOSITIF ÉLECTRONIQUE COMPRENANT LEDIT ACTIONNEUR MAGNÉTIQUE
Abstract
(EN)
A magnet actuator (1) for use in an electronic device (2) comprising a coil (3), a magnet (4), a first housing (5), and a second housing (6), the coil (3) being at least partially located within, and fixed to, the first housing (5), the magnet (4) being at least partially located within, and fixed to, the second housing (6). The first housing (5) comprises a magnetic material, and a magnetic field, generated by the magnet (4) and the first housing (5) causes an attractive force (F) between the magnet (4) and the first housing (5), the magnet (4) and the first housing (5) being in a force equilibrium state, wherein an air gap (7) is provided between the magnet (4) and the coil (3). Manipulating electrical current in the coil (3) causes a change in the attractive force (F), thereby causing a displacement between the magnet (4) and the first housing (5), allowing vibrations to be generated within the electronic device (2).
(FR)
L'invention concerne un actionneur magnétique (1) destiné à être utilisé dans un dispositif électronique (2) qui comprend une bobine (3), un aimant (4), un premier boîtier (5) et un second boîtier (6), la bobine (3) étant au moins partiellement située à l'intérieur du, et fixée au, premier boîtier (5), l'aimant (4) étant au moins partiellement situé à l'intérieur du, et fixé au, second boîtier (6). Le premier boîtier (5) comprend un matériau magnétique, et un champ magnétique, généré par l'aimant (4) et le premier boîtier (5) provoque une force d'attraction (F) entre l'aimant (4) et le premier boîtier (5), l'aimant (4) et le premier boîtier (5) étant dans un état d'équilibre de force, un entrefer (7) étant prévu entre l'aimant (4) et la bobine (3). La manipulation d'un courant électrique dans la bobine (3) provoque un changement de la force d'attraction (F), provoquant ainsi un déplacement entre l'aimant (4) et le premier boîtier (5), permettant à des vibrations d'être générées à l'intérieur du dispositif électronique (2).
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