Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Moving-magnet type loudspeaker

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

Active Publication Date: 2017-05-24
GOERTEK INC
View PDF7 Cites 5 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Moving-magnet type loudspeaker
  • Moving-magnet type loudspeaker
  • Moving-magnet type loudspeaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as 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] Such as 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 dir...

Embodiment 2

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

[0054] Such as Figure 5 and Figure 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] Such as 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] Such as Figure 5 and Figure 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 proc...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a moving-magnet type loudspeaker, and relates to the technical field of electroacoustic products. The moving-magnet type loudspeaker comprises a housing; a vibrating diaphragm and a vibrator which is arranged in parallel with the vibrating diaphragm are held in the housing; the vibrator includes a voice coil; a driving magnet is fixed at one side, close to the vibrator, of the vibrating diaphragm; the voice coil, after being electrified, is formed into an electromagnet, and produces an interaction force with the driving magnet to drive the vibrating diaphragm to vibrate and make a sound; an anti-adsorption magnet is arranged at a position, corresponding to the driving magnet, on the voice coil; magnetization directions of the anti-adsorption magnet and the driving magnet are opposite; a motor magnet is further fixed in the housing; the voice coil is fixed on a basin stand; elastic supporting pieces are fixed at the two ends of the basin frame; each of the elastic supporting pieces is provided with an elastic deformation space along a horizontal direction; and magnetic induction lines of the motor magnet cut the voice coil, thereby pushing the vibrator to vibrate along the horizontal direction. According to the moving-magnet type loudspeaker disclosed by the invention, the vibrating diaphragm has good balance, does not adsorb with the vibrator, and the performance is good.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/06H04R9/02
CPCH04R9/025H04R9/06H04R2400/11
Inventor 汲鹏程祖峰磊许超
Owner GOERTEK INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com