Loudspeaker

Patent metadata

Field	Value
Publication number	US-11644692-B2
Application number	US-202117170941-A
Country	US
Kind code	B2
Filing date	Feb 9, 2021
Priority date	Aug 24, 2018
Publication date	May 9, 2023
Grant date	May 9, 2023

Abstract

The present disclosure relates to a loudspeaker. The loudspeaker may include an earphone core, an auxiliary function module, and a flexible circuit board. The earphone core may be configured to convert an electric signal into a vibration signal. The auxiliary function module may be configured to receive an auxiliary signal and execute an auxiliary function. The flexible circuit board may be configured to electrically connect to an audio signal wire and an auxiliary signal wire of an external control circuit, and electrically connect the audio signal wire and the auxiliary signal wire with the earphone core and the auxiliary function module via the flexible circuit board, respectively. The loudspeaker in the present disclosure may simplify the wire routing and improve sound quality.

First claim

What is claimed is:

1. A loudspeaker, comprising:
an earphone core configured to convert an electric signal into a vibration signal;
an auxiliary function module, including a switch or a microphone, configured to receive an auxiliary signal and execute an auxiliary function; and
a flexible circuit board configured to electrically connect to an audio signal wire and an auxiliary signal wire of an external control circuit, and electrically connect the audio signal wire and the auxiliary signal wire with the earphone core and the auxiliary function module, respectively;
a core housing configured to accommodate the earphone core, the auxiliary function module, and the flexible circuit board; and
a fixing mechanism connected with the core housing and configured to support and maintain a position of the core housing, a battery assembly and a control circuit being disposed in the fixing mechanism;
wherein:
the fixing mechanism is a rear hook, a rear hook wire being disposed in the rear hook, one end of the rear hook wire being electrically connected to the battery assembly and the other end of the rear hook wire being electrically connected to the control circuit, and
the fixing mechanism further includes at least one ear hook, one end of the ear hook being connected to the core housing and the other end of the ear hook being connected to the rear hook, a plurality of ear hook wires being disposed in the ear hook, the ear hook wire including the audio signal wire and the auxiliary signal wire, wherein the audio signal wire and the auxiliary signal wire are configured to be electrically connected to the control circuit, and the control circuit is electrically connected to the battery assembly through the flexible circuit board to control closing or opening of current.

2. The loudspeaker of claim 1 , wherein:
the flexible circuit board at least comprises a plurality of first pads and a plurality of second pads,
at least one first pad of the plurality of first pads is electrically connected to the audio signal wire, the at least one first pad being electrically connected to at least one second pad of the plurality of second pads via a first flexible lead on the flexible circuit board,
the at least one second pad is electrically connected to the earphone core via the external wire, and
at least another one first pad of the plurality of first pads is electrically connected to the auxiliary signal wire and the auxiliary function module via a second flexible lead on the flexible circuit board.

3. The loudspeaker of claim 1 , wherein:
the auxiliary function module is configured to implement one or more functions of an image function, a voice function, an auxiliary control function, and a switch control function, and
the auxiliary function module at least includes a first auxiliary function module and a second auxiliary function module.

4. The loudspeaker of claim 3 , wherein:
the flexible circuit board at least includes a main circuit board and a first branch circuit board,
the first branch circuit board is connected to the main circuit board, away from the main circuit board, and extends along one end of the main circuit board,
the first auxiliary function module is disposed on the main circuit board, and
the second auxiliary function module is disposed on the first branch circuit board.

5. The loudspeaker of claim 4 , wherein a plurality of first pads are disposed on the main circuit board and a plurality of second pads are disposed on the first branch circuit board.

6. The loudspeaker of claim 4 , wherein:
the flexible circuit board further includes a second branch circuit board,
the second branch circuit board is connected to the main circuit board, away from the main circuit board, extends along the other end of the main circuit board, and is spaced apart from the first branch circuit board,
the auxiliary function module further includes a third auxiliary function module, and
the third auxiliary function module is disposed on the second branch circuit board.

7. The loudspeaker of claim 6 , wherein:
a plurality of first pads are disposed on the main circuit board,
at least one second pad of a plurality of second pads is disposed on the first branch circuit board, and
other second pads of the plurality of second pads are disposed on the second branch circuit board.

8. The loudspeaker of claim 1 , wherein the earphone core includes: a magnetic circuit component configured to provide a magnetic field; a vibration component, the vibration component comprising a coil and an inner lead, the coil being located in the magnetic field, the inner lead being electrically connected to the coil, the coil receiving an audio current via the inner lead and converting the audio current into a mechanical vibration signal under an action of the magnetic field; the external wire that transmits the audio current to the coil, one end of the external wire being electrically connected to a second pad, other end of the external wire being electrically connected to the inner lead; and a bracket that accommodates the magnetic circuit component and the vibration component, the bracket including a wiring groove, and the external wire and/or the inner lead being disposed inside the wiring groove.

9. The loudspeaker of claim 8 , wherein the inner lead and the external wire are welded to each other, a welding position being located inside the wiring groove.

10. The loudspeaker of claim 8 , wherein the vibration component further at least includes a first vibration transmission component and a second vibration transmission component, wherein:
the first vibration transmission component is disposed above the second vibration transmission component,
the first vibration transmission component and the second vibration transmission component form a composite vibration structure stacked up and down to generate at least two resonance peaks, and
the coil is fixed under the second vibration transmission component.

11. The loudspeaker of claim 10 , wherein:
the first vibration transmission component has greater elasticity relative to the second vibration transmission component, and
a thickness of the first vibration transmission component is less than a thickness of the second vibration transmission component.

12. The loudspeaker of claim 10 , wherein:
the first vibration transmission component includes a first circular ring and at least two first supporting rods converging toward a center of the first circular ring, and
the second vibration transmission component includes a second circular ring and at least two second supporting rods converging toward a center of the second circular ring.

13. The loudspeaker of claim 12 , wherein the first supporting rod and the second supporting rod are staggered.

14. The loudspeaker of claim 1 , wherein:
the earphone core includes a vibration component, wherein the vibration component is connected to the core housing and configured to transmit the vibration signal to the core housing, and
the core housing has a fitting surface in contact with a human body and configured to press the fitting surface against the human body at a predetermined pressure to transmit the vibration signal to the human body.

15. The loudspeaker of claim 1 , wherein the fixing mechanism includes at least one of a pair of glasses, a hat, a headwear,
a rear hook, or other headwear products.

16. The loudspeaker of claim 1 , wherein the fixing mechanism further includes a circuit housing, the circuit housing being disposed between the ear hook and the rear hook for accommodating the battery ass

Assignees

• Shenzhen Shokz Co Ltd

Inventors

• Wang Yueqiang
• Li Yongjian
• Zhang Haofeng
• Chen Yunbin
• You Fen
• Zhang Lei

Classifications

• H04R1/1008

  Earpieces of the supra-aural or circum-aural type · CPC title

• H04R9/025

  Magnetic circuit · CPC title

• H04R1/105

  Earpiece supports, e.g. ear hooks (for stereophonic headphones H04R5/0335) · CPC title

• H04R1/02

  Casings; Cabinets {; Supports therefor;} Mountings therein (H04R1/28 takes precedence {; attachments for microphones H04R1/08; mounting of transducers in earpieces H04R1/1075}) · CPC title

• H04R1/1083

  Reduction of ambient noise (active noise reduction per se G10K11/175; protective devices for the ear, e.g. providing acoustic protection A61F11/06) · CPC title