SOUND GENERATOR FOR MOBILE ENTITIES

• US 20200137482A1
• Filed: 02/28/2018
• Published: 04/30/2020
• Est. Priority Date: 03/14/2017
• Status: Active Grant

• Current Assignee: Pioneer Corporation, Tohoku Pioneer Corporation (Pioneer Corporation)
• Original Assignee: Pioneer Corporation, Tohoku Pioneer Corporation (Pioneer Corporation)
• Inventors: DOHI, Hiroyuki, HIWATARI, Satoru, NEGISHI, Takayuki, KOBAYASHI, Hiroyuki
• Granted Patent: US 11,070,908 B2
• Time in Patent Office: Days
• CPC Class Codes: B60R 11/02 for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
• CPC Class Codes: H04R 1/025 Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
• CPC Class Codes: H04R 1/2803 for loudspeaker transducers
• CPC Class Codes: H04R 1/2834 for loudspeaker transducers
• CPC Class Codes: H04R 1/2857 for loudspeaker transducers
• CPC Class Codes: H04R 2400/11 Aspects regarding the frame of loudspeaker transducers
• CPC Class Codes: H04R 2499/13 Acoustic transducers and sound field adaptation in vehicles
• CPC Class Codes: H04R 9/06 Loudspeakers

Abstract

A speaker unit emits a sound towards a box-like space formed by a vehicle. The speaker unit is accommodated in an enclosure. At least one of the enclosure and the speaker unit is provided with a tubular member and/or a vibration member configured to generate a resonance sound of a frequency different from a lowest resonance frequency of the speaker unit. At least a part of the enclosure also serves as a body of the vehicle.

Claims

1-8. -8. (canceled)

9. A sound generating device for mobile object comprising:

a speaker unit configured to emit a sound towards a box-like space formed by a mobile object; and

an enclosure accommodating the speaker unit, wherein

at least one of the enclosure and the speaker unit is provided with a resonance element configured to generate a resonance sound of a frequency different from a lowest resonance frequency of the speaker unit, and

at least a part of the enclosure also serves as a body of the mobile object.

10. The sound generating device for mobile object as claimed in claim 9, wherein the enclosure also serves as a frame that forms the body of the mobile object.

11. The sound generating device for mobile object as claimed in claim 10, wherein

the frame is formed into a tubular shape and is closed by a stopper member, and

the enclosure is formed by the stopper member and the frame.

12. The sound generating device for mobile object as claimed in claim 9, wherein the enclosure is formed by at least one of a pillar as the body, a side sill, a reinforcement, a cross member, an under cover and a center tunnel.

13. The sound generating device for mobile object as claimed in claim 9, wherein at least a part of the resonance element also serves as a grommet attached to the body.

14. The sound generating device for mobile object as claimed in claim 9, wherein a ¼

wavelength of the resonance sound is longer than a distance between tragi of a human head.

15. The sound generating device for mobile object as claimed in claim 14, wherein the ¼

wavelength of the resonance sound is longer than twice the distance between the tragi.

16. A mobile object comprising the sound generating device for mobile object as claimed in claim 9.

17. The sound generating device for mobile object as claimed in claim 10, wherein at least a part of the resonance element also serves as a grommet attached to the body.

18. The sound generating device for mobile object as claimed in claim 11, wherein at least a part of the resonance element also serves as a grommet attached to the body.

19. The sound generating device for mobile object as claimed in claim 12, wherein at least a part of the resonance element also serves as a grommet attached to the body.

20. The sound generating device for mobile object as claimed in claim 17, wherein a ¼

wavelength of the resonance sound is longer than a distance between tragi of a human head.

21. The sound generating device for mobile object as claimed in claim 18, wherein a ¼

wavelength of the resonance sound is longer than a distance between tragi of a human head.

22. The sound generating device for mobile object as claimed in claim 19, wherein a ¼

wavelength of the resonance sound is longer than a distance between tragi of a human head.

23. A mobile object comprising the sound generating device for mobile object as claimed in claim 10.

24. A mobile object comprising the sound generating device for mobile object as claimed in claim 11.

25. A mobile object comprising the sound generating device for mobile object as claimed in claim 12.

26. A mobile object comprising the sound generating device for mobile object as claimed in claim 13.

27. A mobile object comprising the sound generating device for mobile object as claimed in claim 14.

28. A mobile object comprising the sound generating device for mobile object as claimed in claim 15.