Multi-directional actuating module

Patent metadata

Field	Value
Publication number	US-10921895-B2
Application number	US-202016829081-A
Country	US
Kind code	B2
Filing date	Mar 25, 2020
Priority date	Jun 14, 2016
Publication date	Feb 16, 2021
Grant date	Feb 16, 2021

Abstract

One embodiment provides a multi-directional actuating module capable of moving in various directions and capable of delivering various tactile senses such as knocking or rubbing as well as vibration by controlling at least one of the intensity, direction or frequency of a magnetic field generation unit. Further, the multidirectional actuating module according to one embodiment may comprise: a moving body capable of moving in at least two or more axial directions by means of an external magnetic field; a support for supporting the moving body so as to be movable; and at least two or more magnetic field generation units which are in the form of a coil to generate the magnetic field.

First claim

The invention claimed is:

1. A haptic device comprising:
a magnetic field generating module configured to generate at least two distinct magnetic fields;
a moving body including magnetic particles and configured to move in at least two axial directions by the at least two distinct magnetic fields generated by the magnetic field generating module;
a support configured to support the moving body to be movable;
a connecting body configured to transfer at least one of a vibration, a rotation, and a translation of the moving body;
a transmitter configured to transmit a tactile signal to a user by moving together with the moving body; and
a controller configured to provide at least one tactile sense which includes vibration, tapping, rubbing or twisting by transmitting a signal to the magnetic field generating module.

2. The haptic device of claim 1 , wherein the at least two distinct magnetic fields comprise a first magnetic field and a second magnetic field, and
wherein the first and second magnetic fields are in the same direction to allow upward and downward movement of the moving body relative to the magnetic field generating module.

3. The haptic device of claim 1 , wherein at least two distinct magnetic fields comprise a first magnetic field and a second magnetic field, and
wherein the first and second magnetic fields are in the opposite directions to allow side-to-side movement of the moving body relative to the magnetic field generating module.

4. The haptic device of claim 1 , wherein the moving body vibrates when an alternating current (AC) is applied to the magnetic field generating module.

5. The haptic device of claim 1 , wherein the moving body rotates or translates when a direct current (DC) current is applied to the magnetic field generating module.

6. The haptic device of claim 1 , wherein the controller provides the at least one tactile sense by controlling at least one of a frequency, a direction or an intensity of current that is applied to the magnetic field generating module.

7. The haptic device of claim 1 , wherein the support comprising:
a support wall configured to encompass the moving body; and
at least one connector configured to connect the support wall and the moving body and made of an elastic material.

8. The haptic device of claim 7 , wherein the magnetic field generator is arranged above or below the moving body, and
the at least one connector is disposed on a periphery of a side surface of the moving body.

9. The haptic device of claim 7 , wherein the at least one connector comprises:
a first connector disposed on the first side relative to the moving body; and
a second connector disposed on the second side relative to the moving body.

Assignees

• Ck Mat Lab Co Ltd

Inventors

• Kim Hyeong Jun
• Lee Jong Hun
• Kim Nam Seok
• Park Myung Sun
• Kang Ji Goo

Classifications

• H02N2/14

  Drive circuits; Control arrangements {or methods} · CPC title

• H02N2/10

  producing rotary motion, e.g. rotary motors · CPC title

• H02N2/06

  Drive circuits; Control arrangements {or methods} · CPC title

• H02N2/04

  Constructional details · CPC title

• H02N2/02

  producing linear motion, e.g. actuators; Linear positioners {; Linear motors} · CPC title