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Loudspeaker

A loudspeaker and basin stand technology, applied in the field of loudspeakers, can solve the problems of inconsistent magnetic flux density, low-frequency distortion of loudspeakers, and uneven distribution of magnetic field, and achieve the effects of consistent magnetic flux density, reducing low-frequency distortion, and improving acoustic performance.

Inactive Publication Date: 2016-10-12
GOERTEK INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The magnetic field distribution of the magnetic circuit system of the speaker with the existing structure is not uniform, and the magnetic flux density at different positions in the magnetic gap is inconsistent, resulting in an uneven magnetic field force on the voice coil when it moves up and down to different positions, especially in high-power bass The performance is more obvious in the speaker, the linearity of BL (electromechanical coupling factor) is poor, the low frequency distortion of the speaker is serious, and the acoustic performance is poor

Method used

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Examples

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing and embodiment, further elaborate the present invention.

[0025] The azimuth mentioned in this manual refers to the direction of the vibration system, and the azimuth refers to the direction of the magnetic circuit system. The inner side referred to in this manual refers to the side close to the center of the speaker.

[0026] Such as figure 1 and figure 2 Commonly shown, a loudspeaker includes a pot frame, a vibration system is fixed on the upper end of the pot frame, and a magnetic circuit system is fixed on the lower end of the pot frame.

[0027] Such as figure 1 and figure 2 As shown together, the vibration system includes a composite pot 10 fixed on the upper end surface of the pot frame, and the composite pot 10 includes a ring 100 and a vibrating plate 102 combined together. The outer edge of the ring 100 is fixed on the upper surface of the pot frame, the vibration plate 102 is connected with a dustproof ca...

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Abstract

The invention discloses a loudspeaker, and relates to the technical field of an electroacoustic product. The loudspeaker comprises a basin frame, and a vibration system and a magnetic circuit system which are fixed on the basin frame. The magnetic circuit system comprises a magnetic conductive component, and a magnet and washers which are fixed on the magnetic conductive component in sequence. Magnetic gaps are formed between the magnetic conductive component, and the magnet and the washers. Grooves are arranged at locations on the washers corresponding to the magnetic gaps. The grooves are closed circular grooves which stretch along the peripheries of the washers. According to the loudspeaker provided by the invention, the technical problem that in the prior art, the distortion of a bass loudspeaker is high under a high power is solved. According to the loudspeaker, the magnetic fields are distributed evenly; the linearity of a BL is high; the distortion is low; the acoustic performance is high; moreover, the production difficulty is low; and the production efficiency is high.

Description

technical field [0001] The invention relates to the technical field of electroacoustic products, in particular to a loudspeaker. Background technique [0002] Loudspeakers, commonly known as horns, are used to convert audio electrical signals into sound and are an energy conversion device. A conventional woofer includes a pot frame and a vibration system and a magnetic circuit system fixed on the pot frame. The vibration system includes a composite pot and a voice coil combined together. The magnet and Washer on the iron form a magnetic gap between the magnet and Washer and the U iron or T iron. The end of the voice coil is located in the magnetic gap and moves up and down in the magnetic gap according to the AC sound wave electric signal passing through its coil. Movement drives the compound basin to vibrate up and down to make sound. The magnetic field distribution of the magnetic circuit system of the speaker with the existing structure is not uniform, and the magnetic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/06H04R9/02
CPCH04R9/02H04R9/06H04R2400/11
Inventor 焦其金李志
Owner GOERTEK INC
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