One-piece magnet voice coil assembly and moving magnet loudspeaker provided with the assembly
An all-in-one, loudspeaker technology, applied in the direction of loudspeakers, sensors, electrical components, etc., can solve the problems of large magnetic strength and size of permanent magnets, affect production efficiency, and consume a lot of time, and achieve simplified assembly and other processes , Improve the assembly accuracy and material accuracy, and simplify the assembly process
Active Publication Date: 2019-08-27
GOERTEK INC
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Problems solved by technology
However, the existing method has great requirements on the magnetic strength and size of the permanent magnet, and it takes a lot of time to verify, which affects the production efficiency
Method used
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[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0033] Such as figure 1 , figure 2 and image 3 As shown, an integrated magnet voice coil assembly includes a voice coil 34 with a central hole, and a bonded magnet 36 integrally injection-molded with the voice coil 34; the voice coil 34 is pre-wound; the bonded magnet 36 and The voice coil 34 is combined into one body through injection molding process; the bonded magnet 36 is combined with the voice coil 34 through injection molding process by mixed resin and magnetic fluid, and the bonded magnet 36 is magnetized after injection molding.
[0034] Such as figure 1 , figure 2 and image 3 As...
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Disclosed are an integrated magnet and voice coil assembly and a moving magnet-type loudspeaker provided with the assembly, wherein the magnet and voice coil assembly comprises a voice coil provided with a central hole and a bonded magnet integrally injection-moulded with the voice coil, wherein the voice coil is formed in a pre-wound mode; the bonded magnet is integrated with the voice coil by resin and magnetic liquid which are mixed together by means of an injection moulding process; and the bonded magnet is magnetized after being formed by injection moulding. In the present invention, the bonded magnet is injection moulded in the voice coil by means of injection moulding, so that the magnetic force of the bonded magnet can be conveniently achieved by adjusting the proportioning of the resin and the magnetic liquid, and the shape of the magnet. After the magnet and voice coil assembly of the present invention is used for the moving magnet-type loudspeaker, the magnetic force of the bonded magnet for balancing a vibrating diaphragm can be conveniently adjusted, so that the loudspeaker can better control the balance position of the vibrating diaphragm so as to make same provided with a good loudspeaker performance. At the same time, the assembly accuracy and material accuracy can be greatly improved, so that the process, such as assembling, is simplified.
Description
technical field [0001] The invention relates to the technical field of electroacoustic products, in particular to an integrated magnet voice coil assembly and a moving magnet loudspeaker provided with the assembly. Background technique [0002] The loudspeaker is an important acoustic component of portable electronic equipment. It is used to complete the conversion between electrical signals and sound signals, and is an energy conversion device. The installation is distinguished according to the working principle, and the speakers include moving magnet speakers. The working principle of the moving magnet speaker is similar to that of the moving iron speaker. The voice coil is energized to form an electromagnet, and the electromagnet interacts with the permanent magnet to vibrate and produce sound. When an additional magnet is required to balance the magnetics, the current approach is to insert a permanent magnet into the voice coil. However, the existing method has relativ...
Claims
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IPC IPC(8): H04R9/06H04R9/02
CPCH04R9/02H04R9/06H04R2400/11
Inventor 汲鹏程许超
Owner GOERTEK INC