Loudspeaker apparatus

Patent metadata

Field	Value
Publication number	US-12418751-B2
Application number	US-202519026576-A
Country	US
Kind code	B2
Filing date	Jan 17, 2025
Priority date	Jan 5, 2019
Publication date	Sep 16, 2025
Grant date	Sep 16, 2025

Abstract

A loudspeaker apparatus includes a circuit housing configured to accommodate a circuit component or a battery; an ear hook; a housing of an earphone core configured to accommodate the earphone core; and a housing protector at least partially covering a periphery of the circuit housing and the ear hook. A first end of the ear hook is connected to the circuit housing. The earphone core is driven by the circuit component or the battery to vibrate to generate sound. The housing of the earphone core is connected to a second end of the ear hook away from the circuit housing through a hinge component. The hinge component is capable of rotating to change a position of the housing of the earphone core relative to the ear hook.

First claim

What is claimed is:

1. A loudspeaker apparatus, comprising:
an ear hook including an elastic metal wire and a plug end disposed at one end of the elastic metal wire;
a circuit housing configured to accommodate a circuit component or a battery, the circuit housing being connected to the ear hook; and
a housing of an earphone core configured to accommodate the earphone core, the housing of the earphone core and the plug end being fixedly plugged; wherein
the plug end includes an insertion portion,
the housing of the earphone core is disposed with a socket hole communicating with an outer end surface of the housing of the earphone core,
the insertion portion is at least partially inserted into the socket hole,
the ear hook further includes a protective sleeve disposed on a periphery of the plug end,
an end face of the protective sleeve facing the housing of the earphone core forms an annular abutting surface, and the annular abutting surface elastically abuts the outer end surface of the housing of the earphone core when the housing of the earphone core and the plug end are fixedly plugged.

2. The loudspeaker apparatus of claim 1 , wherein the protective sleeve is injection-molded on the periphery of the plug end.

3. The loudspeaker apparatus of claim 1 , wherein the protective sleeve is fixedly connected to a peripheral of the elastic metal wire.

4. The loudspeaker apparatus of claim 3 , wherein the protective sleeve is injection-molded on the periphery of the elastic metal wire.

5. The loudspeaker apparatus of claim 1 , wherein the insertion portion includes an exposed portion exposed to the housing of the earphone core, and the exposed portion is a stair-step shape and forms an annular table surface spaced apart from the outer end surface of the housing of the earphone core, the protective sleeve extends to a side of the annular table surface facing the outer end surface of the housing of the earphone core, and fill a space between the annular table surface and the outer end surface of the housing of the earphone core.

6. The loudspeaker apparatus of claim 1 , wherein the protective sleeve includes an annular boss that is located inside the annular abutting surface and protruding from the annular abutting surface.

7. The loudspeaker apparatus of claim 6 , wherein the housing of the earphone core includes an inclined surface connecting the outer end surface of the housing of the earphone core and an inner sidewall of the socket hole, the annular abutting surface and the annular boss elastically abut the outer end surface of the housing of the earphone core and the inclined surface, respectively.

8. The loudspeaker apparatus of claim 6 , wherein the annular boss is formed on a periphery of the annular table surface and covers the annular table surface.

9. The loudspeaker apparatus of claim 6 , wherein the insertion portion forms an annular groove on a side of the annular table surface facing the outer end surface of the housing of the earphone core, and the annular boss is formed in the annular groove.

10. The loudspeaker apparatus of claim 1 , wherein:
a stop block is disposed on an inner sidewall of the socket hole; and
the plug end includes two elastic hooks that are disposed on a side of the insertion portion facing an interior of the housing of the earphone core, wherein the two elastic hooks are capable of approaching each other under an action of an external thrust and the stop block, and being elastically restored to be stuck on an inside surface of the stop block after passing through the stop block.

11. The loudspeaker apparatus of claim 10 , wherein the two elastic hooks are arranged side by side and spaced from each other in a direction perpendicular to an insertion direction of the insertion portion.

12. The loudspeaker apparatus of claim 11 , wherein each elastic hook of the two elastic hooks includes a beam portion and a hook portion disposed at an end of the beam portion, and each hook portion is disposed with a transition inclined surface connecting a side surface parallel to the insertion direction and an end surface away from the insertion portion.

13. The loudspeaker apparatus of claim 12 , wherein the stop block is located between the insertion portion and the hook portions of the two elastic hooks.

14. The loudspeaker apparatus of claim 10 , wherein the insertion portion has a longer size than the socket hole in an insertion direction of the insertion portion.

15. The loudspeaker apparatus of claim 1 , further comprising:
a housing protector injection-molded on the ear hook, wherein the housing protector at least partially covers a periphery of the circuit housing.

16. The loudspeaker apparatus of claim 15 , wherein the housing protector includes a bag structure with an open end, and the circuit housing enters an interior of the housing protector through the open end of the housing protector.

17. The loudspeaker apparatus of claim 16 , wherein:
the open end of the housing protector is disposed with an annular flange protruding inward, an end of the circuit housing away from the ear hook forms a first annular table surface, and the annular flange is configured to abut the first annular table surface.

18. The loudspeaker apparatus of claim 17 , wherein a sealant is applied to a joint region of the annular flange and the first annular table surface.

19. The loudspeaker apparatus of claim 15 , wherein the circuit housing comprises two sub-housings fastened to each other, and
the housing protector completely covers a joint seam of the two sub-housings.

20. The loudspeaker apparatus of claim 19 , wherein
a joint surface of the two sub-housings that are fastened to each other comprises a stepped structure that fits into each other.

Assignees

• Shenzhen Shokz Co Ltd

Inventors

• Li Chaowu
• Li Yongjian
• Wang Yueqiang

Classifications

• H04R2225/021

  Behind the ear [BTE] hearing aids · CPC title

• H04R25/65

  Housing parts, e.g. shells, tips or moulds, or their manufacture · CPC title

• H04R25/658

  Manufacture of housing parts · CPC title

• H04R1/1025

  Accumulators specially adapted for earpieces; Arrangements specially adapted for charging thereof · CPC title

• H04R2460/13

  Hearing devices using bone conduction transducers · CPC title