A loudspeaker magnetic circuit system

A technology of magnetic circuit system and loudspeaker, applied in the direction of sensors, electrical components, etc., can solve the problem that the influence of magnetic declination angle of magnetic steel on the magnetic circuit of the loudspeaker cannot be effectively considered, a single magnetic declination angle, or no magnetic declination angle, the use of magnetic steel rate reduction and other problems, to increase the cost, optimize the magnetic circuit, and increase the magnetic field strength.
CN112203195BActive Publication Date: 2021-09-28湖南航天磁电科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
湖南航天磁电科技有限公司
Publication Date
2021-09-28

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Abstract

A loudspeaker magnetic circuit system, comprising a magnetic steel, a magnetically conductive upper plate, a magnetically conductive lower plate, and a magnetically conductive column; The magnetic column is set in the center hole of the annular magnet; The average magnetic declination of the ring is the average magnetic declination of the second magnetic ring. The average magnetic declination of the third magnetic ring is the average magnetic declination of the fourth magnetic ring. The angle θ is the angle between the magnetic upper plate and the magnetic steel. It is defined as: a virtual center circle is created at the center between the inner diameter surface and the outer diameter surface of the annular magnetic steel, and a distance connection line is drawn between the circle where the bottom end of the inner diameter surface of the magnetic permeable upper plate is located and the center circle, and the distance connection line and The angle between the end faces of the ring magnetic steel is θ. The present invention designs the included angle between the magnetic upper plate and the magnetic steel according to the different magnetic declination angles of the magnetic steel, so that the magnetic steel and the magnetic upper plate are better matched, and the magnetic field intensity is increased.
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Description

technical field

[0001] The invention relates to a loudspeaker magnetic circuit system, in particular to a loudspeaker magnetic circuit system in which the included angle between a magnetically conductive upper plate and a magnetic steel is designed according to different magnetic declination angles of the magnetic steel. Background technique

[0002] The loudspeaker magnetic circuit system is a component that realizes the conversion of electric-force energy, and is an important part of the speaker to complete the process of electric-force-acoustic energy conversion. The magnetic circuit system is basically composed of four types of components, including magnetic upper plate, magnetic steel, Magnetic lower plate and magnetic column. The quality of the design of the magnetic circuit system directly affects the results of the speaker's final acoustic signal output frequency response, harmonic distortion, rated power, and energy conversion efficiency.

[0003] At present, the d...

Claims

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