Magnetic circuit device for loudspeaker and combined magnetic circuit loudspeaker

A loudspeaker and magnetic circuit technology, applied in the field of loudspeakers, can solve the problems of increasing power consumption on power consumption and the impact on the service life of loudspeakers, and achieve the effects of improving the magnetic field, improving the electro-acoustic conversion efficiency, and reducing power consumption.

Inactive Publication Date: 2012-10-03
BESTAR HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In addition, another way to change the sound pressure level is to change the input current or voltage, thereby changing the output power. In this way, it is bound to change the design of

Method used

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  • Magnetic circuit device for loudspeaker and combined magnetic circuit loudspeaker
  • Magnetic circuit device for loudspeaker and combined magnetic circuit loudspeaker
  • Magnetic circuit device for loudspeaker and combined magnetic circuit loudspeaker

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Embodiment Construction

[0026] refer to figure 1 and figure 2 The magnetic circuit device of the loudspeaker of the present invention includes a magnetic bowl 1, a first magnetic steel 2 and a first pole piece 3, one end of the first magnetic steel 2 is supported on the middle part of the upper end surface of the magnetic bowl 1, and the first magnetic steel 2 The other end is fixedly connected with the first pole piece 3 . A gap is formed on the symmetrical side walls of the magnetic bowl 1, and the gap is set so that the magnetic bowl 1 becomes an open magnetic bowl, which is different from the structure of the existing magnetic bowl. A second magnetic steel 4 and a third magnetic steel 5 are respectively arranged in the two gaps, and the second magnetic steel 4 and the third magnetic steel 5 are respectively fixed on the magnetic bowl by bonding. The second pole piece 6 is arranged on the second magnet steel 4 , and the third pole piece 7 is arranged on the third magnet steel 5 , and each pole ...

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Abstract

The invention relates to a combined magnetic circuit loudspeaker. The lower part of a voice coil surrounds first magnetic steel, and the upper end of the voice coil is fixedly connected with a diaphragm. The two ends of the diaphragm are fixedly connected with a shell. A nick is formed on each of symmetrical sidewalls of a magnetic bowl. Second magnetic steel is arranged in one nick, and third magnetic steel is arranged in the other nick. A second pole piece is arranged on the second magnetic steel, and a third pole piece is arranged on the third magnetic steel. The polarity of the end part of the second magnetic steel, which is connected with the second pole piece, is the same as that of the end part of the third magnetic steel, which is connected with the third pole piece, and is opposite to that of the end part of the first magnetic steel, which is connected with a first pole piece. A sound pressure level is improved by enhancing the intensity of a magnetic field; an output sound pressure level is effectively improved under the condition of no improvement in power; and particularly, the problem that the requirement of a consumer for the high-sound pressure and high-fidelity playing of music cannot be met by the output sound pressure of a mobile phone loudspeaker in the industry can be solved.

Description

technical field [0001] The invention relates to the technical field of loudspeakers, in particular to a magnetic circuit device of a loudspeaker and a combined magnetic circuit loudspeaker. Background technique [0002] Mobile phones have become one of the essential tools for people to communicate. With the development of science and technology, the degree of intelligence of mobile phones is also increasing. At present, there are various smart phones on the market. These smart phones can communicate with the network through wireless network transmission. Connect to allow users to enjoy various resources on the network, among which audio files and video files are the two most played files by people. When using a mobile phone to play audio and video files, the speaker on the mobile phone is often used. Due to the limited size of the mobile phone, the volume of the speaker on it is also limited accordingly, so the sound pressure level of the speaker is also limited accordingly...

Claims

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Application Information

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IPC IPC(8): H04R9/02H04R9/06
Inventor 徐金国龚先沅
Owner BESTAR HLDG
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