IP Library Granted Patent US 11,825,259
Granted Patent B2
US 11,825,259 · App. 18/154,026 · Granted Nov 21, 2023

Speaker device

Inventors: Lei Zhang (Shenzhen, CN); Yongjian Li (Shenzhen, CN); Wenbing Zhou (Shenzhen, CN); Jinbo Zheng (Shenzhen, CN); Zhuyang Jiang (Shenzhen, CN); Xin Qi (Shenzhen, CN); Fengyun Liao (Shenzhen, CN)
Assignee: SHENZHEN SHOKZ CO., LTD.
H04R1/1008H04R1/105H04R1/1025H04R1/1041H04R1/1075H04R9/025H04R9/06H04R2460/13
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Quick Facts
Patent No.
US 11,825,259
App. No.
18/154,026
Granted
Nov 21, 2023
Kind
B2
Abstract

The present disclosure relates to a speaker device including a circuit housing, an ear hook, a rear hook, and a speaker assembly. The speaker assembly may include a headphone core and a housing for accommodating the headphone core, the housing may include a housing panel facing a human body and a housing back opposite to the housing panel, and the headphone core may cause the housing panel and the housing back to vibrate. An absolute value of a difference between a first phase of a vibration of the housing panel and a second phase of a vibration of the housing back may be less than 60 degrees when a frequency of each of the vibration of the housing panel and the vibration of the housing back is between 2000 Hz and 3000 Hz.

Claims (34)

1. A speaker device, comprising

an ear hook; and

a speaker assembly connected to an end of the ear hook, the speaker assembly including a headphone core and a housing for accommodating the headphone core, wherein

the housing is configured to be hung on an ear of a user without blocking an ear canal of the user; and

the headphone core further includes magnetic circuit assembly, wherein the magnetic circuit assembly includes:

a first magnetic element that has a first magnetization direction;

a second magnetic element that has a second magnetization direction, wherein a thickness of the first magnetic element is greater than the thickness of the second magnetic element; and

a first magnetically conductive element disposed between the first magnetic element and the second magnetic element.

2. The speaker device of claim 1 , wherein an angle between the second magnetization direction of the second magnetic element and the first magnetization direction of the first magnetic element is in the range from 90 degrees to 180 degrees.

3. The speaker device of claim 2 , wherein the second magnetization direction of the second magnetic element is opposite to the first magnetization direction of the first magnetic element.

4. The speaker device of claim 1 , wherein the first magnetically conductive element is connected to an upper surface of the first magnetic element.

5. The speaker device of claim 4 , wherein the first magnetically conductive element is connected to a lower surface of the second magnetic element.

6. The speaker device of claim 4 , wherein the first magnetic element, the first magnetically conductive element, or the second magnetic element include an axisymmetric structure.

7. The speaker device of claim 4 , wherein the magnetic circuit assembly further comprises:

a second magnetically conductive element connected to a lower surface of the first magnetic element, the lower surface being opposite to the upper surface of the first magnetic element.

8. The speaker device of claim 7 , wherein the second magnetically conductive element includes a groove-type structure.

9. The speaker device of claim 7 , wherein a magnetic gap is formed between the first magnetic element, the first magnetically conductive element, the second magnetic element, and the second magnetically conductive element.

10. The speaker device of claim 9 , wherein a voice coil is disposed in the magnetic gap.

11. The speaker device of claim 10 , wherein the first magnetic element, the first magnetically conductive element, the second magnetically conductive element, and the second magnetic element form a magnetic field loop.

12. The speaker device of claim 9 , wherein the magnetic circuit assembly generates a first magnetic field, and the first magnetic element generates a second magnetic field.

13. The speaker device of claim 12 , wherein an intensity of the first magnetic field in the magnetic gap is greater than an intensity of the second magnetic field in the magnetic gap.

14. The speaker device of claim 13 , wherein the second magnetic element generates a third magnetic field, the third magnetic field increasing an intensity of the second magnetic field in the magnetic gap.

15. The speaker device of claim 1 , wherein the housing includes a housing panel facing a human body and a housing back opposite to the housing panel, the headphone core causes the housing panel and the housing back to vibrate, a vibration of the housing panel has a first phase, a vibration of the housing back has a second phase, and an absolute value of a difference between the first phase and the second phase is less than 60 degrees when a frequency of each of the vibration of the housing panel and the vibration of the housing back is between 2000 Hz and 3000 Hz.

16. The speaker device of claim 15 , wherein the absolute value of the difference between the first phase and the second phase is less than 90 degrees when the frequency of each of the vibration of the housing panel and the vibration of the housing back is between 1000 Hz and 2000 Hz.

17. The speaker device of claim 15 , wherein

the vibration of the housing panel has a first amplitude,

the vibration of the housing back 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.

18. The speaker device of claim 15 , wherein

the vibration of the housing panel generates a first sound leakage wave,

the vibration of the housing back generates a second sound leakage sound wave, and

the first sound leakage wave and the second sound leakage wave have an overlap, which reduces an amplitude of the first sound leakage wave.

19. The speaker device of claim 15 , wherein

the housing panel and one or more other components of the housing are connected via at least one of a bonding connection, a snapping connection, a welding connection, or a threaded connection.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 15, 2023
From: ZHANG, LEI; LI, YONGJIAN; ZHOU, WENBING; ZHENG, JINBO; JIANG, ZHUYANG
To: SHENZHEN VOXTECH CO., LTD.
Reel/Frame 063648/0222 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 15, 2023
From: QI, XIN; LIAO, FENGYUN
To: SHENZHEN VOXTECH CO., LTD.
Reel/Frame 063648/0244 →
CHANGE OF NAME Recorded May 15, 2023
From: SHENZHEN VOXTECH CO., LTD.
To: SHENZHEN SHOKZ CO., LTD.
Reel/Frame 063648/0248 →
Priority Claims (3)
CN 201810623408.2 · Jun 15, 2018 · national
CN 201810624043.5 · Jun 15, 2018 · national
CN 201910009909.6 · Jan 5, 2019 · national
Continuity (8)
Continuation 17662082 · May 5, 2022
Continuation 17169604 · Feb 8, 2021
Continuation In Part 17078276 · Oct 23, 2020
Continuation In Part 16922965 · Jul 7, 2020
Continuation In Part PCTCN2019102382 · Aug 24, 2019
Continuation PCTCN2019070548 · Jan 5, 2019
Continuation PCTCN2019070545 · Jan 5, 2019
Related Publication 20230156388A1 · May 18, 2023
Cited By (7)
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