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

A loudspeaker based on injection molding process

A technology of injection molding and loudspeaker, applied in the field of loudspeakers, can solve the problems of difficulty in reducing the manufacturing cost of loudspeakers, low product yield, unstable quality, etc., and achieve the effects of simple manufacturing process, reduced manufacturing cost, and low manufacturing cost

Inactive Publication Date: 2018-07-03
NINGBO SHENGYA ELECTRONICS
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In summary, the traditional tapered or flat drum paper manufacturing process has low product yield and unstable quality, and the cost remains high due to the need for special glue and special vacuum spraying equipment
This also directly leads to the difficulty in reducing the manufacturing cost of the loudspeaker

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
  • A loudspeaker based on injection molding process
  • A loudspeaker based on injection molding process
  • A loudspeaker based on injection molding process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The loudspeaker of the present invention comprises an electroacoustic transducer 1, a supporting frame 2 placed thereon, and a drum paper 3 placed inside the top end of the supporting frame 2. The electro-acoustic transducer and the supporting frame 2 adopt common basic structures and elements in the prior art. The structure of the drum paper 3 is as above, except that the top cover layer 32 and the bottom cover layer 33 are made of kraft paper.

Embodiment 2

[0052] The loudspeaker of the present invention comprises an electroacoustic transducer 1, a supporting frame 2 placed thereon, and a drum paper 3 placed inside the top end of the supporting frame 2. The electro-acoustic transducer and the supporting frame 2 adopt common basic structures and elements in the prior art. The structure of the drum paper 3 is as above, except that the top cover layer 32 and the bottom cover layer 33 are made of aluminum metal sheet, titanium metal sheet or other suitable metal sheets.

Embodiment 3

[0054] The loudspeaker of the present invention comprises an electroacoustic transducer 1, a supporting frame 2 placed thereon, and a drum paper 3 placed inside the top end of the supporting frame 2. The electro-acoustic transducer and the supporting frame 2 adopt common basic structures and elements in the prior art. The structure of the drum paper 3 is as above, except that the top cover layer 32 and the bottom cover layer 33 are made of non-woven fabric, flat woven fabric or other suitable braided fabrics.

[0055] As mentioned above, the loudspeaker of the present invention adopts a kind of drum paper based on the injection molding process, and its inner interlayer is made of polypropylene foam material, and glue is applied on the upper and lower sides of the polypropylene foam material layer, because the inner interlayer is The foamed polypropylene material has a basically flat surface, even if there are fluctuations, but the range is not large, it is easy to apply glue, ...

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

A loudspeaker based on injection molding technology, comprising an electro-acoustic transducer, a support frame placed on it, and a drum paper placed inside the top of the support frame. Wherein, the drum paper comprises a polypropylene foam layer and a top covering layer and a bottom covering layer respectively located on its upper and lower sides. The polypropylene foam layer has a flat plate structure and is made of polypropylene material through injection molding process. The top covering layer and the bottom covering layer are flat plate structures made of paper, metal sheet or braided fabric respectively. Adhesive layers are further provided between the top cover layer and the bottom cover layer and the polypropylene foam layer, and the adhesive layer is anaerobic colloid.

Description

technical field [0001] The invention relates to a loudspeaker, in particular to a loudspeaker based on injection molding technology. [0002] The invention also relates to a speaker drum paper, in particular to a drum paper based on an injection molding process. Background technique [0003] In the traditional process, the drum paper of the loudspeaker, such as the cone or plane drum paper (or vibration plate), adopts a sandwich sandwich structure, and the middle layer mostly adopts a honeycomb plate (honeycomb structure), and its specific structure is as follows: figure 1 shown. [0004] In the traditional manufacturing process of tapered or flat drum paper, a honeycomb structure is formed as the middle layer, and then other additional layers are attached above and below it. Wherein, the honeycomb structure of the middle layer is mostly made of paper, aluminum or synthetic fibers such as aramid fiber, etc. However, the use of the above materials to manufacture the honeyco...

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 Patents(China)
IPC IPC(8): H04R31/00
Inventor 黄新民
Owner NINGBO SHENGYA ELECTRONICS
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