Loudspeaker apparatus

Patent metadata

Field	Value
Publication number	US-2021127193-A1
Application number	US-202017139076-A
Country	US
Kind code	A1
Filing date	Dec 31, 2020
Priority date	Jan 5, 2019
Publication date	Apr 29, 2021
Grant date	—

Abstract

The present disclosure discloses a loudspeaker apparatus. The loudspeaker apparatus may include an ear hook including a first plug end and a second plug end, a core housing for accommodating an earphone core, and a circuit housing for accommodating a control circuit or a battery. The ear hook may be surrounded by a protective sleeve which is made of an elastic waterproof material. The core housing may be fixed to the first plug end and elastically abutted against the protective sleeve. The core housing may include a housing panel facing human body and a housing back panel opposite to the housing panel. When the vibration frequencies of the housing panel and the housing back panel is within a range of 2000 Hz to 3000 Hz, an absolute value of a difference between the first phase and the second phase may be less than 60 degrees.

First claim

1 . A loudspeaker apparatus, comprising:
an ear hook including a first plug end and a second plug end, the ear hook being surrounded by a protective sleeve, the protective sleeve being made of an elastic waterproof material; a core housing for accommodating an earphone core, the core housing being fixed to the first plug end and elastically abutted against the protective sleeve, wherein
the core housing including a housing panel facing human body and a housing back panel opposite to the housing panel, and
the vibration of the earphone core drives the housing panel and the housing back panel to vibrate, the vibration of the housing panel having a first phase, the vibration of the housing back panel having a second phase, wherein when the vibration frequencies of the housing panel and the housing back panel is within a range of 2000 Hz to 3000 Hz, an absolute value of a difference between the first phase and the second phase is less than 60 degrees; and
a circuit housing for accommodating a control circuit or a battery, the circuit housing being fixed to the second plug end, the control circuit or the battery driving the earphone core to vibrate to generate a sound.

2 . The loudspeaker apparatus of claim 1 , wherein the ear hook further includes:
an elastic metal wire; a wire; and a fixed sleeve, the fixed sleeve fixing the wire on the elastic metal wire, the protective sleeve being formed, by injection molding, on periphery of the elastic metal wire, the wire, the fixed sleeve, the first plug end, and the second plug end.

3 . The loudspeaker apparatus of claim 2 , wherein
the first plug end and the second plug end are formed, by injection molding, at both ends of the elastic metal wire respectively, the first plug end and the second plug end are arranged with a first wiring channel and a second wiring channel respectively, and the wire extends along the first wiring channel and the second wiring channel.

4 . The loudspeaker apparatus of claim 3 , wherein the wire passes through the first wiring channel and the second wiring channel.

5 . The loudspeaker apparatus of claim 3 , wherein
the first wiring channel includes a first wiring groove and a first wiring hole connecting the first wiring groove and an outer end surface of the first plug end, the wire extends along the first wiring groove and the first wiring hole and is exposed on the outer end surface of the first plug end, the second wiring channel includes a second wiring groove and a second wiring hole connecting the second wiring groove and the outer end surface of the first plug end, and the wire extends along the second wiring groove and the second wiring hole and is exposed on the outer end surface of the second plug end.

6 . The loudspeaker apparatus of claim 2 , wherein the ear hook includes at least two fixed sleeves spaced apart along the elastic metal wire.

7 . The loudspeaker apparatus of claim 1 , wherein
the core housing is arranged with a first socket connecting with an outer end surface of the core housing, a stopping block is arranged on an inner sidewall of the first socket, and the first socket is connected to the first plug end.

8 . The loudspeaker apparatus of claim 7 , wherein the first plug end includes:
an inserting portion being at least partially inserted into the first socket and abutting against an outer side surface of the stopping block; and two elastic hooks being arranged on a side of the inserting portion facing inside of the core housing, wherein:
the two elastic hooks are brought together under action of external thrust and the stopping block, and
after passing through the stopping block, the two elastic hooks are elastically restored to be stuck on an inner surface of the stopping block to realize the fixation of the core housing and the first plug end.

9 . The loudspeaker apparatus of claim 8 , wherein
the inserting portion is partially inserted into the first socket, and an exposed part of the inserting portion is arranged in a stepped manner to form an annular table surface spaced apart from the outer end surface of the core housing.

10 . The loudspeaker apparatus of claim 9 , wherein
the protective sleeve further extends to a side of the annular table surface facing the outer end surface of the core housing, and when the core housing and the first plug end are fixed, the protective sleeve elastically abuts against the core housing to realize sealing.

11 . The loudspeaker apparatus of claim 1 , wherein
the loudspeaker apparatus further includes a fastener, the circuit housing is arranged with a second socket, and the second plug end is at least partially inserted into the second socket and connected to the second socket by the fastener.

12 . The loudspeaker apparatus of claim 11 , wherein
the second plug end is arranged with a slot perpendicular to an inserting direction of the second socket, a through hole corresponding to a position of the slot is arranged on a first sidewall of the circuit housing; the fastener includes two parallel pins and a connecting portion for connecting the pins, and the pins are inserted into the slot from outside of the circuit housing through the through hole to realize the plug and fixation of the circuit housing and the second plug end.

13 . The loudspeaker apparatus of claim 1 , wherein the ear hook further includes a housing sheath integrally formed with the protective sleeve, the housing sheath being wrapped around periphery of the circuit housing.

14 . The loudspeaker apparatus of claim 1 , wherein the vibration signal of the housing panel has a first amplitude, the vibration signal of the housing back panel has a second amplitude, and a ratio of the first amplitude to the second amplitude is within a range of 0.5 to 1.5.

15 . The loudspeaker apparatus of claim 1 , wherein the vibration of the housing panel generates a first leaked sound wave, the vibration of the housing back panel generates a second leaked sound wave, wherein the first leaked sound wave and the second leaked sound wave are superimposed on each other, which reduces an amplitude of the first leaked sound wave.

16 - 17 . (canceled)

18 . The loudspeaker apparatus of claim 1 , wherein the earphone core further includes a magnetic circuit component generating a first magnetic field, the magnetic circuit component including:
a first magnetic unit configured to generate a second magnetic field; a first magnetically conductive unit; and at least one second magnetic unit, the at least one second magnetic unit surrounding the first magnetic unit and forming a magnetic gap with the first magnetic unit, a magnetic field strength of the first magnetic field in the magnetic gap being greater than a magnetic field strength of the second magnetic field in the magnetic gap.

19 . The loudspeaker apparatus of claim 18 , wherein the magnetic circuit component further includes:
a second magnetically conductive unit; and at least one third magnetic unit being connected to the second magnetically conductive unit and the at least one second magnetic unit.

20 . The loudspeaker apparatus of claim 19 , wherein the magnetic circuit component further includes:
at least one fourth magnetic unit being located below the magnetic gap and connected to the first magnetic unit and the second magnetically conductive unit.

21 - 22 . (canceled)

23 . The loudspeaker apparatus of claim 19 , wherein
the first magnetically conductive unit is connected to t

Assignees

• Shenzhen Voxtech Co Ltd

Inventors

• Li Chaowu
• Li Yongjian

Classifications

• H04R1/44

  Special adaptations for subaqueous use, e.g. for hydrophone · CPC title

• H04R1/023

  Screens for loudspeakers · CPC title

• H04R9/025

  Magnetic circuit · CPC title

• H04R1/1041

  Mechanical or electronic switches, or control elements (switches in general H01H) · CPC title

• H04R1/347

  for obtaining a phase-shift between the front and back acoustic wave · CPC title