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Magnetic circuit system, loudspeaker and mobile terminal

A magnetic circuit system and loudspeaker technology, which is applied in the field of communication to achieve the effect of improving sensitivity and slowing down nonlinear distortion

Active Publication Date: 2019-05-17
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention provides a magnetic circuit system to solve the problem of how to improve nonlinear distortion under the premise of avoiding magnetic flux leakage

Method used

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  • Magnetic circuit system, loudspeaker and mobile terminal
  • Magnetic circuit system, loudspeaker and mobile terminal
  • Magnetic circuit system, loudspeaker and mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] refer to figure 1 , shows a cross-sectional view of a magnetic circuit system of an exemplary embodiment of the present invention.

[0055] like figure 1 As shown, the magnetic circuit system 100 is an internal magnetic structure, which has smaller magnetic flux leakage and smaller volume than the external magnetic structure, and is suitable for miniaturized speakers, receivers, mobile terminals (such as mobile phones, tablet computers, etc.) Headphones and other components.

[0056] The magnetic circuit system 100 may include a magnet 110 (yoke), a magnet 120 (maghet) and a washer 130 (washer / plate).

[0057] The magnetic steel 110 is U iron (U-Yoke), and the materials are mostly SPCC (cold-rolled carbon steel sheet and strip for general use), SPCD (cold-rolled carbon steel sheet and strip for stamping), SPCE (for deep drawing) Cold-rolled carbon steel plates and steel strips), etc., are mainly produced by stamping.

[0058] The magnetic steel 110 has a base 111 an...

Embodiment 2

[0087] refer to Figure 9 , shows a cross-sectional view of a loudspeaker according to an exemplary embodiment of the present invention.

[0088] like Figure 9 As shown, the speaker 900 includes structures such as a vibration system, a magnetic circuit system, and a support system.

[0089] Among them, the support system includes structures such as pot frame, gasket, dust cover, terminal board, and lead wire.

[0090] The basin frame is to combine all parts (vibration system, magnetic circuit system and support system, etc.) together, and play the role of overall attachment and connection.

[0091] Dust caps are mainly used to prevent dust and other debris from entering the magnetic circuit system and for aesthetic purposes. For the sound quality performance, the high-frequency performance is mainly controlled. The sound material is different in softness and hardness / radian size. The material includes Mylar (polyester film), silk cloth, aluminum and so on.

[0092] The ga...

Embodiment 3

[0121] refer to Figure 10 , shows a cross-sectional view of a magnetic circuit system of another exemplary embodiment of the present invention.

[0122] like Figure 10 As shown, the magnetic circuit system 1000 is an internal magnetic structure, which has smaller magnetic flux leakage and smaller volume than the external magnetic structure, and is suitable for miniaturized speakers, receivers, mobile terminals (such as mobile phones, tablet computers, etc.) Headphones and other components.

[0123] The magnetic circuit system 1000 may include a magnet 1010 (yoke), a magnet 1020 (maghet) and a washer 1030 (washer / plate).

[0124] The magnetic steel 1010 is U iron (U-Yoke), and the materials are mostly SPCC (cold-rolled carbon steel sheet and strip for general use), SPCD (cold-rolled carbon steel sheet and strip for stamping), SPCE (for deep drawing) Cold-rolled carbon steel plates and steel strips), etc., are mainly produced by stamping.

[0125] The magnet 1010 has a bas...

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Abstract

An embodiment of the invention provides a magnetic circuit system, a loudspeaker and a mobile terminal. The magnetic circuit system comprises a magnetic steel part, a magnet stone and a washer, wherein the magnetic steel part is provided with a pedestal and a wall body positioned above the pedestal, the magnet stone is positioned at an area which is placed above the pedestal and surrounded by the wall body, the washer is positioned at an area which is placed above the magnet stone and surrounded by the wall body, an inner side of the wall body is provided with at least one first tip structure that faces toward the washer and / or an outer side of the washer is provided with at least one second tip structure which faces toward the magnetic steel part. Magnetic field guiding effects can be fulfilled, and a magnetic field passes through a magnetic conductive medium; strong physical effects can be exerted at a sharp part, and magnetic field intensity can be increased.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a magnetic circuit system, a loudspeaker and a mobile terminal. Background technique [0002] With the development of mobile communication technology, mobile terminals have become an indispensable part of people's lives, enabling barrier-free calls anytime and anywhere, and many commonly used functions included in mobile terminals bring convenience to people's lives. [0003] In a mobile terminal, in order to perform operations such as calling and playing songs, a speaker is basically installed, which is a transducer device that converts electrical energy into sound. [0004] In moving coil speakers, especially in miniature moving coil speakers, the magnetic circuit system is an important structural component, and the magnetic energy that can be provided is utilized by the voice coil to produce sound. [0005] When the voice coil leaves the magnetic circuit system, the str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R9/06H04R9/02
CPCH04R9/02H04R9/06H04R2400/11
Inventor 阮清波王志远
Owner VIVO MOBILE COMM CO LTD