Improvement of string vibrating type loudspeaker
A loudspeaker, vibrating technology, applied in the field of improvement of the string vibrating loudspeaker, can solve problems such as difficulties
Inactive Publication Date: 2017-12-29
张侠辅 +2
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Problems solved by technology
Although the dynamic speaker has some advantages, its distortion is still as high as 5%. This is caused by its structural defects. It is very difficult to reduce it a little bit. , high-fidelity is not available, some people go for the music instead
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[0014] 1. New diaphragm sealing method
[0015] The width of the strip-shaped diaphragm of the string vibration speaker is smaller than the distance between two adjacent magnetic pole surfaces of the magnets. If it is placed directly in the gap filled with the magnetic field, there will be a large air gap between the two edges and the magnetic pole surfaces, so that when vibrating, Part of the front sound wave and the back anti-phase sound wave cancel each other through the air gap, which is the so-called acoustic short circuit. Therefore, it is necessary to cut off the air passages in front and rear of the diaphragm as much as possible, which is called edge sealing. The earliest method used was to inject a magnetic liquid between the edge of the diaphragm and the pole face. However, in the process of use, it is found that the magnetic liquid will splash, volatilize, and dry up, and the damping of the diaphragm by the magnetic liquid is not easy to control, and there is a prob...
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Two types of string vibrating type loudspeakers are provided. One type of string vibrating type loudspeaker consists of a plurality of cuboid magnets arranged in parallel and a plurality of ribbon vibrating diaphragms placed between the cuboid magnets, and each vibrating diaphragm is made of a ribbon plastic film to which a metal wiring harness is adhered; and the other type of string vibrating type loudspeaker consists of a plurality of ring-shaped magnets arranged in parallel and a plurality of ring-shaped vibrating diaphragms placed between the ring-shaped magnets, and each vibrating diaphragm is made of a single-layer metal coil attached to a plastic film. Each vibrating diaphragm is made into a shape like microwave fluctuation so as to have flexibility. Such loudspeaker has the advantages of little distortion, high sound quality, good transient response and the like just like other loudspeakers combining a voice coil with a vibrating diaphragm into one whole body, but always has the problems such as an edge sealing method is bad, a use quantity of magnets is large, evaluated manufacturing cost is excessively high, sensitivity is low and the like. By years of improvement experiments, the patent application discloses effective schemes for improving a production method of the loudspeaker. The improvement schemes include: a novel vibrating diaphragm edge sealing method, a method for improving a utilization rate of magnets, a novel vibrating diaphragm production method and improvement on a ring-tube-shaped or columnar loudspeaker.
Description
technical field [0001] Loudspeaker is a terminal component of audio-visual technology under the field of information science. Terminal components include two categories for eyes to see and ears to hear. The former is mainly a display screen, which has reached a very high level, and the latter is mainly a speaker. , has not changed much for a long time, and is almost in a state of stagnation. Background technique [0002] The dynamic (also known as electric) speaker in use today was invented in 1861 and has a long history. There have been reed speakers, piezoelectric ceramic speakers, horn speakers, electrostatic speakers, etc., but they have never been widely used. Although the dynamic speaker has some advantages, its distortion is still as high as 5%. This is caused by its structural defects. It is very difficult to reduce it a little bit. , high-fidelity is not available, and some people go to pursue the sense of music instead. The advent of the information age forced t...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H04R9/06H04R9/02
CPCH04R9/06H04R9/025H04R2400/11
Inventor 张侠辅张丽娜张旭
Owner 张侠辅