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Micro moving-coil electroacoustic transducer and assembling method thereof

An electroacoustic converter and assembly method technology, applied in the direction of sensors, electrical components, etc., can solve the problems of high production cost, unfavorable automatic production, complex production process, etc., achieve low cost, facilitate automatic production and manufacturing, and reduce production costs Effect

Active Publication Date: 2015-06-03
GOERTEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a miniature dynamic electro-acoustic transducer which facilitates automatic production, improves labor productivity, and reduces production costs, as well as an assembly method of this miniature dynamic electroacoustic transducer, to solve The production process in the prior art is complicated, the production cost is relatively high, and it is not conducive to the realization of automatic production defects

Method used

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  • Micro moving-coil electroacoustic transducer and assembling method thereof
  • Micro moving-coil electroacoustic transducer and assembling method thereof
  • Micro moving-coil electroacoustic transducer and assembling method thereof

Examples

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Embodiment example 1

[0044] Such as figure 1 It is an exploded schematic diagram of a miniature dynamic electro-acoustic transducer according to an embodiment of the present invention; figure 2 It is a structural schematic diagram of a miniature dynamic electro-acoustic transducer according to an embodiment of the present invention. The miniature moving coil electroacoustic transducer has a circular main body planar shape and includes the following structures:

[0045] A vibration system, including a diaphragm 21 and a cylindrical voice coil 22 combined with the diaphragm 21;

[0046] The magnetic circuit system includes a washer 31, a magnet 32, and a yoke 33 combined in sequence, and the yoke 33 is a basin-shaped one end open, correspondingly accommodating the washer 31 and the magnet 32;

[0047] An annular metal casing 12, the outer peripheral portion of the casing 12 is fixed with the diaphragm 21, and the inner peripheral portion of the casing 12 is fixedly combined with the open end of t...

Embodiment example 2

[0062] Such as Figure 8 As shown, the difference between this embodiment and the first embodiment is that a plurality of yoke holes 332 are provided on the bottom of the yoke 33 corresponding to the magnetic gap. In the work of the miniature dynamic electro-acoustic transducer, the vibration of the diaphragm will cause the internal air pressure to change drastically, which will affect the sound effect. The traditional method is to set holes on the shell that pass through the inside and outside of the miniature dynamic electro-acoustic transducer. However, in this structure, the passage for airflow transmission is long, and the improvement is limited. In this embodiment, a plurality of yoke holes are provided at the position corresponding to the magnetic gap at the bottom of the yoke, which can effectively improve this problem.

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Abstract

The invention discloses a micro moving-coil electroacoustic transducer. The micro moving-coil electroacoustic transducer comprises a vibration system, a magnetic circuit system and a ring-shaped (not necessary to be closed) metal shell; the vibration system comprises a vibrating diaphragm and a tubular speech coil combined together with the vibration diaphragm; the magnetic circuit system comprises an upper washer, a magnet and a magnet yoke, which are orderly combined together, wherein one end of the magnet yoke is opening, and the magnet yoke is basin-shaped so as to correspondingly accommodate the upper washer and the magnet; a peripheral part of the ring-shaped metal shell is fixed together with the vibrating diaphragm while an inner circle part of the ring-shaped metal shell is fixedly combined with the opening end of the magnet yoke; and the magnetic circuit system forms a magnetic gap of the mMicro moving-coil electroacoustic transducer, and an installation position of the speech coil is corresponding to the magnetic gap. The micro moving-coil electroacoustic transducer and the shell thereof can be respectively manufactured, and are simpler in structure and low in cost, above all, the structure is convenient for automatic production and manufacturing, and has the advantages of improving labor productivity and reducing production cost; and the invention further provides a method for manufacturing the micro moving-coil electroacoustic transducer.

Description

technical field [0001] The present invention relates to the field of miniature electroacoustic transducers, in particular to a miniature dynamic electroacoustic transducer which facilitates automatic production, improves labor productivity, and reduces production costs, and the miniature dynamic electroacoustic transducer assembly method. Background technique [0002] With the development of portable consumer electronic products such as mobile phones and notebooks, miniature dynamic electroacoustic transducers have been widely used. In addition to the direct application of the miniature dynamic electro-acoustic converter to the above-mentioned terminal products, in the main audio peripheral components such as earphones, a miniature dynamic electro-acoustic converter needs to be installed for the output of the sound signal. [0003] The structure of the traditional miniature dynamic electro-acoustic transducer mainly includes a magnetic circuit system, a vibration system, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R9/06H04R9/02
Inventor 刘春发郭晓冬
Owner GOERTEK INC