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Moving Magnet Speaker

A loudspeaker and moving magnet technology, applied in the direction of sensors, loudspeakers, electrical components, etc., can solve the problems of low high-frequency performance, inability to meet ultra-thin portable electronic equipment, poor high-frequency transient response, etc., to achieve Improve high-frequency performance and improve the effect of poor high-frequency transient response

Active Publication Date: 2018-09-18
GOERTEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the speakers used in portable electronic devices are dynamic speakers. Due to their principle, dynamic speakers have poor high-frequency transient response and low high-frequency performance, which is difficult to meet the requirements of current Hi-Fi (high-fidelity) equipment. performance requirements
At the same time, with the continuous miniaturization of portable electronic devices, speakers and vibration motors are usually packaged into one housing to form a two-in-one product to reduce the space occupied. However, when making a two-in-one product with a dynamic speaker, only It can be used as a Z-direction motor, that is, the vibration direction of the vibration motor is vertical, which will make the product thicker and cannot meet the requirements of ultra-thin portable electronic devices

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] like figure 1 and figure 2 As shown together, a moving magnet loudspeaker has a rectangular parallelepiped structure, including a casing, a diaphragm and a vibrator accommodated in the casing, and the diaphragm and the vibrator are arranged in parallel. The casing includes a front cover 12a and a casing 10a that are combined up and down. The front cover 12a is a box-shaped structure with an open lower end, and the casing 10a is a box-shaped structure with an open upper end. The open end of the front cover 12a is fastened to the casing 10a. on the open end. The diaphragm is horizontally and fixedly installed on the front cover 12a, and the middle part of the front cover 12a is provided with a sound hole 120; It is fixedly connected with the shell 10a.

[0042] like figure 1 and figure 2 As shown together, the sounding unit includes a diaphragm, and a driving magnet 24a and a motor magnet 26a are fixed in the middle of the diaphragm, and the magnetization direction...

Embodiment 2

[0053] This embodiment is basically the same as Embodiment 1, the difference is that:

[0054] like Figure 5 and Image 6 As shown together, the anti-adsorption magnet 37b is a plate-shaped structure, covering the upper surface of the middle part of the voice coil 34a, and is arranged opposite to the driving magnet 24a.

[0055] Working principle of this embodiment The working principle of the first embodiment is the same, so it will not be repeated here.

Embodiment 3

[0057] This embodiment is basically the same as Embodiment 1 or Embodiment 2, the difference is:

[0058] like Figure 7 and Figure 8 Commonly shown, there are three driving magnets 24b, three corresponding voice coils 34b, one armature 36b is provided in each of the center holes of the three voice coils 34b, and three anti-adsorption magnets 37a are also provided, three anti-adsorption The magnets 37a are respectively arranged in the center hole of the voice coil above the three armatures 36b, and the three anti-adsorption magnets 37a are respectively arranged corresponding to the three driving magnets 24b; The direction of magnetization is opposite, and the current direction of the voice coil 34b at the center is opposite to that of the two voice coils 34b at the two sides.

[0059] like Figure 5 and Image 6As shown together, the ring 22b is a silicone ring, which is combined with the front cover 12b and the vibrating plate 20b through an injection molding process. Th...

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Abstract

Disclosed is a moving magnet-type loudspeaker, relating to the technical field of electro-acoustic products, and comprises a housing, wherein the housing accommodates a vibrating diaphragm and a vibrator arranged in parallel with the vibrating diaphragm, wherein the vibrator comprises a voice coil; a driving magnet is fixed to one side, close to the vibrator, of the vibrating diaphragm; the voice coil forms an electromagnet after being powered on, and generates an interactive force with the driving magnet so as to drive the vibrating diaphragm to vibrate and emit sound; a position, corresponding to the driving magnet, on the voice coil, is provided with an anti-attraction magnet, with the magnetisation directions of the anti-attraction magnet and the driving magnet being reverse; a motor magnet is also fixed in the housing is also fixed; the voice coil is fixed on a basket, with an elastic support member being fixed at two ends of the basket; the elastic support member is provided with an elastic deformation space in a horizontal direction; and a magnetic induction line of the motor magnet cuts the voice coil, thereby pushing the vibrator to vibrate in a horizontal direction. The vibrating diaphragm of the moving magnet-type loudspeaker of the present invention has good balance, does not attract to the vibrator, and has good performance.

Description

technical field [0001] The invention relates to the technical field of electroacoustic products, in particular to a moving magnet loudspeaker capable of realizing the functions of a loudspeaker and a linear vibration motor. 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. It is an energy conversion device; the linear vibration motor is a kind of motor and an important part of portable electronic equipment. To realize the function of vibration reminder. At present, most of the speakers used in portable electronic devices are dynamic speakers. Due to their principle, dynamic speakers have poor high-frequency transient response and low high-frequency performance, which is difficult to meet the requirements of current Hi-Fi (high-fidelity) equipment. performance requirements. At the same time, with the continuous miniaturization ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R9/06H04R9/02
CPCH04R9/025H04R9/06H04R2400/11
Inventor 汲鹏程祖峰磊许超
Owner GOERTEK INC
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