Title:
SOUND-PRODUCING APPARATUS AND TERMINAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/068623
Kind Code:
A1
Abstract:
Provided in the present application are a sound-producing apparatus and a terminal device, related to the technical field of electronic devices. The sound-producing apparatus mainly comprises a first magnetically permeable structure, a first magnetic element, a second magnetic element, a voice coil set, and a second magnetically permeable structure. The first magnetic element is connected to the first magnetically permeable structure to form a first vibrator. The voice coil set and the second magnetic element are connected to the second magnetically permeable structure to form a second vibrator. In addition, the voice coil set comprises at least two voice coils. Some voice coils of the at least two voice coils are parallel-connected in a one-to-one correspondence to one high-frequency short-circuiting element. In a high frequency state, the voice coils parallel-connected to the high-frequency short-circuiting element are short circuited so as to reduce the high-frequency resistance of the voice coil set, thus allowing a force generated in a changing magnetic field by the voice coil set into which an alternating current is introduced to meet the demand of the sound-producing apparatus for a vibration driving force, and favoring an improved sound-producing effect.
Inventors:
LIN ZHOU (CN)
DING JUN (CN)
KOU DAHE (CN)
DING JUN (CN)
KOU DAHE (CN)
Application Number:
PCT/CN2020/106606
Publication Date:
April 15, 2021
Filing Date:
August 03, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04R9/06; H04R9/02
Foreign References:
| CN209151364U | 2019-07-23 | |||
| CN205647982U | 2016-10-12 | |||
| CN207283806U | 2018-04-27 | |||
| CN108600920A | 2018-09-28 | |||
| US20170289693A1 | 2017-10-05 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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