A diaphragm manufacturing process for a moving iron unit

A technology of diaphragm production and moving iron, which is applied in the direction of electrical components, sensors, etc., can solve the problems that the acoustic performance of the moving iron unit cannot be fully exerted, easy to shrink and deform, and the product quality is unstable, so as to achieve stable and reliable product quality. The effect of high production efficiency and improved acoustic performance

Active Publication Date: 2019-03-29
CHANGZHOU AMT
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  • Abstract
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Problems solved by technology

The runway produced by the above method, because the film is stretched and deformed under pressure to form a runway structure, the runway is prone to shrinkage and deformation after forming, and the film will also be deformed by the extrusion of the mold, so the precision of the processed runway is very low , and the accuracy of the diaphragm itself is also low, resulting in the acoustic performance of the moving iron unit cannot be fully utilized, and the product quality is unstable

Method used

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  • A diaphragm manufacturing process for a moving iron unit
  • A diaphragm manufacturing process for a moving iron unit

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Embodiment

[0031] to combine figure 1 As shown, the diaphragm manufacturing process of a moving iron unit in this embodiment uses a hot pressing process to connect the diaphragm main body 4, the film 5 and the diaphragm support 6 together. The difference from the prior art is that in the mold In the upper mold 1 and the lower mold 2, there is no concave-convex structure for forming the diaphragm track 51, but in the hot pressing process, the film 5 is stretched into the track cavity 22 provided in the mold by blowing the film 5 with gas. runway 51. Using the diaphragm manufacturing process of this embodiment, the runway 51 on the film 5 is formed by gas pressure, which avoids the extrusion and deformation of the film material, thereby affecting the strength uniformity of each part of the runway 51, and avoids stretching. Runway 51 shrinkage problem. In this embodiment, the raceway structure is skillfully formed by using gas pressure in the hot pressing process of the diaphragm, which ...

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Abstract

The invention discloses a vibration film production technology of a moving iron unit, and belongs to the technical field of a loudspeaker. According to the vibration film production technology of the moving iron unit provided by the invention, a vibration film body, a thin film and a vibration film bracket are connected together by utilizing a hot-pressing technology; in a hot-pressing process, the thin film is blown and sucked by a gas; and therefore, the thin film extends to a runway cavity in a die to form a runway. According to the technology provided by the invention, in the hot-pressing technology of the vibration film, a runway structure is formed by skillfully utilizing gas pressure; compared with the existing technical solution of forming the runway by adopting a concave-convex structure, the thin film is not stretched and extruded by the die; the runway structure on the thin film is not damaged; the processed vibration film is high in precision; the product quality is stable and reliable; and therefore, the acoustic performance of the moving iron unit is improved.

Description

technical field [0001] The invention relates to a manufacturing method of a vibrating membrane, and more specifically relates to a manufacturing process of a vibrating membrane of a moving iron unit with a vibrating membrane track structure formed by using air pressure. Background technique [0002] The moving iron unit vibrates up and down by controlling the balance armature located in the magnetic field, and transmits this vibration to the diaphragm through the conduction rod, and the diaphragm agitates the air in the front cavity of the moving iron unit to produce sound. The moving iron unit has the advantages of stable frequency response curve, high sensitivity, superior high-frequency performance and small size. Therefore, headphones and speakers using moving iron units are favored by consumers. [0003] Since the volume of the moving iron unit can be made very small, the installation of its various components is more troublesome, and some of them need to be completed u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R31/00
CPCH04R31/003
Inventor 魏鹏孟献振易鹏飞
Owner CHANGZHOU AMT
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