Broadband Linear Vibrator and Mobile Terminal

• US 20110254782A1
• Filed: 01/04/2011
• Published: 10/20/2011
• Est. Priority Date: 04/16/2010
• Status: Active Grant

• Current Assignee: Em-Tech Company Limited
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: Park, Youngil
• Granted Patent: US 8,598,750 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: B06B 1/045 using vibrating magnet, armature or coil system
• CPC Class Codes: H02K 33/04 wherein the frequency of operation is determined by the frequency of uninterrupted AC energisation
• CPC Class Codes: H04M 1/0202 Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets constructional features of telephone transmitters or receivers, e.g. of speakers or microphones H04M1/03

Abstract

A broadband linear vibrator that is small sized and yet capable of generating a greater vibrating force and outputting various broadband vibrations, and a mobile terminal capable of outputting various vibrations and sounds, wherein the broadband linear vibrator includes a case; a spring coupled to the case; an oscillator including a magnet for elastically supporting the spring and a stator formed inside the case for vibrating the oscillator, wherein a frequency band to a maximum use frequency that is detectable as a vibration or a sound source based on a resonant frequency is 1.2 times than a frequency band to a minimum use frequency, such that various feelings of vibrations and sounds can be advantageously provided by the broadband linear vibrator.

Claims

1. A broadband linear vibrator, comprising:

a case;

a spring coupled to the case; and

an oscillator including a magnet for elastically supporting the spring and a stator formed inside the case for vibrating the oscillator, wherein a frequency band to a maximum use frequency that is detectable as a vibration or a sound source based on a resonant frequency is 1.2 times than a frequency band to a minimum use frequency.

2. The broadband linear vibrator of claim 1, further comprising an upper plate formed between the spring and the magnet, wherein the magnet may include an outer magnet disposed at a periphery of the upper plate and an inner magnet that is centrally disposed.

3. The broadband linear vibrator of claim 2, further comprising a bottom plate formed at a bottom end of the magnet.

4. The broadband linear vibrator of claim 3, wherein at least one of the upper plate and the bottom plate is formed with a magnetic substance.

5. The broadband linear vibrator of claim 2, wherein each of the outer magnet and the inner magnet has an opposite polarity toward a vibrating direction of the oscillator.

6. The broadband linear vibrator of claim 2, wherein a cubic rate between the external magnet and the inner magnet is in the range of 0.8-1.

7. The broadband linear vibrator of claim 1, wherein a use frequency is set up to separately set up a vibration mode and a sound mode.

8. The broadband linear vibrator of claim 7, wherein the vibration mode is set up within the maximum use frequency of 300 Hz.

9. A broadband linear vibrator, comprising:

a case;

a spring coupled to the case; and

an oscillator including a magnet for elastically supporting the spring and a stator formed inside the case for vibrating the oscillator, wherein the linear vibrator generates an oscillating frequency capable of detecting in the range of 30˜

150 Hz before and after resonant frequency.

10. The broadband linear vibrator of claim 9, further comprising an upper plate formed between the spring and the magnet, wherein the magnet includes an outer magnet disposed at a periphery of the upper plate and an inner magnet that is centrally disposed.

11. The broadband linear vibrator of claim 10, further comprising a bottom plate formed at a bottom end of the magnet.

12. The broadband linear vibrator of claim 10, wherein at least one of the upper plate and the bottom plate is formed with a magnetic substance.

13. The broadband linear vibrator of claim 10, wherein each of the outer magnet and the inner magnet has an opposite polarity toward a vibrating direction of the oscillator.

14. The broadband linear vibrator of claim 10, wherein a cubic rate between the outer magnet and the inner magnet is in the range of 0.8˜

1.

15. A mobile device, comprising:

a display outputting an image;

a touch pad receiving an execution command through a touch; and

a linear vibrator outputting various vibrations and sounds having various frequencies, wherein a frequency band to a maximum use frequency based on a resonant frequency is 1.2 times than a frequency band to a minimum use frequency.

16. The mobile device of claim 15, further comprising a controller capable of setting up a vibration mode and a sound mode at the linear vibrator.

17. The mobile device of claim 16, wherein the vibration mode is set up within the use frequency of 300 Hz.

18. The mobile device of claim 15, wherein a vibration and a sound are simultaneously outputted.

19. A mobile device, comprising:

a display outputting an image;

a touch pad receiving an execution command through a touch; and

a linear vibrator outputting various vibrations and sounds having various frequencies, wherein the linear vibrator generates an oscillating frequency capable of detecting in the range of 30˜

150 Hz before and after a resonant frequency.