Loudspeaker and terminal

A speaker and tail-end technology, applied in the field of speakers, can solve problems such as affecting the sound effect of the speaker, and achieve the effect of prolonging the life and ensuring the sound effect.

CN106028236AInactive Publication Date: 2016-10-12QINGDAO HISENSE MOBILE COMM TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2016-10-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a loudspeaker and a terminal. The loudspeaker comprises a driving voice coil, a measuring temperature ring and a voice coil bracket, wherein both the driving voice coil and the measuring temperature ring are wound on the voice coil bracket; the measuring temperature ring consists of two thermosensitive wires; two thermosensitive wires are wound on the voice coil bracket in a double-wire winding manner; and currents in two thermosensitive wires are the same in size and opposite in direction. By controlling the currents flowing in two thermosensitive wires to be the same in size and opposite in direction, when the currents are changed, generated magnetic fields can be mutually counteracted, and Ampere forces applied to two powered thermosensitive wires in the magnet magnetic fields are the same in size and opposite in direction, and thus, a current applied to the measuring temperature ring cannot generate influence on a sound production effect of the driving voice coil. Therefore, according to the loudspeaker and the terminal which are provided by the invention, detection on a temperature of the driving sound coil of the loudspeaker under the condition of ensuring the sound production effect of the driving voice coil of the loudspeaker can be implemented, and not only the sound production effect of the loudspeaker is ensured, but also the service life of the loudspeaker is prolonged.
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Description

technical field

[0001] The present invention relates to loudspeaker technology, in particular to a loudspeaker and a terminal. Background technique

[0002] The speaker includes a voice coil and a magnet set together. When the speaker is working, the audio current flows through the voice coil to generate an electromagnetic field, and the magnet provides a constant magnetic field. Since the electromagnetic field generated by the voice coil changes continuously with the change of the audio current, the changing electromagnetic field can interact with the constant magnetic field to drive the displacement of the voice coil. Since the voice coil is connected to the diaphragm, it can drive the diaphragm to push the air and produce sound.

[0003] On the one hand, the audio current generates heat due to flowing through the voice coil resistance; When the volume is louder, the audio current is bigger and the heat is more. When the voice coil is overheated, it will cause the voice...

Examples

Embodiment Construction

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0029] Embodiments of the present invention provide a speaker on the one hand. Aiming at the problem that the existing speaker will affect the sound effect of the speaker when measuring the temperature of the driving voice coil, a measuring temperature coil is added on the basis of the existing speaker. The measuring temperature coil consists of tw...