CN106412773B - A kind of top dome of vibrating diaphragm and preparation method thereof - Google Patents

A kind of top dome of vibrating diaphragm and preparation method thereof Download PDF

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Publication number
CN106412773B
CN106412773B CN201510454111.4A CN201510454111A CN106412773B CN 106412773 B CN106412773 B CN 106412773B CN 201510454111 A CN201510454111 A CN 201510454111A CN 106412773 B CN106412773 B CN 106412773B
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CN
China
Prior art keywords
layer
duralumin
dome
adhesive layer
fibre bundle
Prior art date
Application number
CN201510454111.4A
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Chinese (zh)
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CN106412773A (en
Inventor
孙金永
刘虎林
姚杰
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深圳市摩码科技有限公司
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Priority to CN201510454111.4A priority Critical patent/CN106412773B/en
Publication of CN106412773A publication Critical patent/CN106412773A/en
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Publication of CN106412773B publication Critical patent/CN106412773B/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00Diaphragms for electromechanical transducers; Cones
    • H04R7/02Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12Non-planar diaphragms or cones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor

Abstract

The present invention relates to speaker technology fields, specifically disclose a kind of top dome of vibrating diaphragm, and the method for making the top dome.Top dome of the invention includes the first duralumin layer set gradually from top to bottom, middle layer and the second duralumin layer;The middle layer includes fibrous layer and the first adhesive layer and the second adhesive layer of binder fibre layer upper and lower surfaces, the fibrous layer are engaged with the first duralumin layer and the second duralumin layer respectively by the first adhesive layer and the second adhesive layer respectively.Top dome surface of the invention is duralumin layer, and surface smoothness is high, shock resistance;Top dome middle layer of the invention is fibrous layer, is engaged by adhesive layer with duralumin layer, facilitates the weight for mitigating top dome, improves sensitivity.Roof structure of the invention is simple, easy to process, is able to bear high temperature, and long service life can significantly improve the acoustical behavior of loudspeaker and electronic equipment, and preparation is simple, production cost is low.

Description

A kind of top dome of vibrating diaphragm and preparation method thereof

[technical field]

The present invention relates to top dome technical fields, top dome and its production more particularly to a kind of vibrating diaphragm for loudspeaker Method.

[background technique]

It is influenced by the market demand, the electronic equipments such as mobile phone just gradually develop to the direction of slimming, and to sound matter The requirement of amount is also higher and higher.Therefore, small-sized, slim, high tone quality requirement also is proposed to acoustical device.Sound film is as loudspeaking The core component of the acoustical devices such as device, acoustical behavior directly affect the performance of acoustical device.

The effect of top dome is to adjust low-and high-frequency on sound film, is had a major impact to the sound quality of loudspeaker.However existing ball It is complicated to push up general structure, the material cost of selection is higher, and processing is inconvenient, considerably increases the production cost of enterprise.

[summary of the invention]

In view of the problems in the background art, the purpose of the present invention is to provide a kind of top domes of vibrating diaphragm, have outer The duralumin layer in portion and middle layer comprising fibrous layer, so that top dome surface smoothness is high, shock resistance, while alleviating top dome weight Amount, it is easy to process.

The present invention adopts the following technical scheme:

A kind of top dome of vibrating diaphragm comprising the first duralumin layer, middle layer and the second duralumin layer set gradually from top to bottom; The middle layer includes fibrous layer and binds the first adhesive layer and second in the fibrous layer upper and lower surfaces respectively Adhesive layer, the fibrous layer are engaged with the first duralumin layer and the second duralumin layer respectively by the first adhesive layer and the second adhesive layer.

In some embodiments, the fibrous layer can be by being arranged longitudinally to the first duralumin layer and the second duralumin layer Fiber filament or fibre bundle constitute, wherein first adhesive layer is inserted into the top and bottom of the fiber filament or fibre bundle respectively With second adhesive layer.

In some embodiments, the thickness of the first duralumin layer and the second duralumin layer can be 5~25 μm respectively.

In some embodiments, the thickness of first adhesive layer and the second adhesive layer can be 5~30 μm respectively.

In some embodiments, the fibrous layer with a thickness of 80~300 μm, the length of the fiber filament and/or fibre bundle It can be 100~400 μm.

In some embodiments, the filametntary diameter can be 1~100nm, and the diameter of the fibre bundle can be 1- 70μm。

In some embodiments, fiber filament and/or fibre bundle in the fibrous layer can be arranged parallel to each other, or mutually Arranged crosswise.

In some embodiments, the fiber filament and/or fibre bundle can perpendicular to, be approximately perpendicular to or favour described One duralumin layer and the second duralumin layer.

On the other hand, the present invention also provides the methods for making the top dome, comprising the following steps: S1 is in the first duralumin Adhere to adhesive on layer, to form the first adhesive layer;The side of fibrous layer is inserted into the first adhesive layer by S2, so that fiber filament And/or fibre bundle is arranged longitudinally to the first duralumin layer;S3 utilizes the second adhesive layer by the fiber filament and/or fibre of the fibrous layer other side Dimension beam adheres to the second duralumin layer, so that fiber filament and/or fibre bundle are arranged longitudinally to the second duralumin layer.

In some embodiments, step S3 may include being coated with adhesive, and the second duralumin of gluing in the other side of fibrous layer Layer, or the second adhesive layer is formed on the second duralumin layer, then the fiber filament of the fibrous layer other side and/or fibre bundle are inserted into In second adhesive layer.

Compared with prior art, top dome surface of the invention is duralumin layer, and surface smoothness is high, shock resistance;Of the invention Top dome middle layer is fibrous layer, is engaged by adhesive layer with duralumin layer, facilitates the weight for mitigating top dome, improves sensitivity, change The Frequency Response of kind high frequency;Roof structure of the invention is simple, easy to make, is able to bear high temperature, long service life.Using this The loudspeaker acoustical behavior of the top dome of invention is excellent, and production cost is low.It is particularly suitable for light and thin type electronic equipment, such as hand Machine, tablet computer etc..

[Detailed description of the invention]

Fig. 1 is a kind of roof structure schematic diagram of embodiment according to the present invention.

Wherein, the reference numerals are as follows:

100 Top dome 101 Fibrous layer

10 Middle layer 102 First adhesive layer 11 First duralumin layer 103 Second adhesive layer 12 Second duralumin layer 101a Fiber filament/fibre bundle

[specific embodiment]

In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not For limiting the present invention.

Top dome and its internal structure, ratio, size of the vibrating diaphragm that this specification institute accompanying drawings are drawn etc., only to cooperate The revealed content of specification is not intended to limit the invention enforceable so that those skilled in the art understands and reads Qualifications, therefore do not have technical essential meaning;The tune of the modification of any structure, the change of proportionate relationship or size, quantity It is whole, the effect of the top dome for not influencing vibrating diaphragm of the invention can be generated and under the purpose that can reach, it should all still fall in this hair In the range of bright revealed technology contents cover.Meanwhile in this specification it is cited as "upper", "lower", " left side ", The term of " right side ", " centre " etc., it is clear only for the purposes of describing, rather than to limit the scope of the invention;It is opposite Relationship is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.

Referring to Fig. 1, which show the structural schematic diagram of top dome 100 of the invention, top dome 100 includes from top to bottom successively The first duralumin layer 11, middle layer 10 and the second duralumin layer 12 being arranged.

Wherein, middle layer 10 includes the first gluing of fibrous layer 101 and difference 101 upper and lower surfaces of binder fibre layer Layer 102 and second adhesive layer 103, fibrous layer 101 by the first adhesive layer 102 and the second adhesive layer 103 respectively with the first duralumin Layer 11 and the second duralumin layer 12 engage.

The thickness of duralumin layer 11,12 respectively can be in the range of 5~25 μm;The thickness of adhesive layer 102,103 can divide Not in the range of 5~30 μm;The thickness of fibrous layer 101 can be in the range of 80~300 μm.

In this preferred embodiment, the fiber filament or fibre bundle 101a that are arranged in fibrous layer 101 longitudinally to duralumin layer 11,12 It constitutes, the first adhesive layer 102 and the second adhesive layer 103 are inserted into the top and bottom of fiber filament or fibre bundle 101a respectively.

Fiber filament can be nanofibers, diameter generally can between 1~100nm, length can 100~ Between 400 μm.Fibre bundle is the beam being made of fiber filament, therefore correspondingly, the diameter of fibre bundle generally can 1~70 μm it Between.In the preferred embodiment, the diameter of fibre bundle 101a is 5~50 μm.

In further preferred embodiment, the direction of fiber filament and/or fibre bundle 101a can hang down with duralumin layer 11,12 It is straight or close vertical, it can also suitably tilt.Wherein, the fiber filament in fibrous layer 101 and/or fibre bundle 101a can be put down each other Row arrangement.Certainly in other embodiments, fiber filament and/or fibre bundle can also be not parallel, such as arrangement intersected with each other.

Fiber filament and/or fibre bundle 101a in fibrous layer 101 by one of following fiber or a variety of can be constituted: glass Glass fiber, carbon fiber, carbon nano-tube fibre, doughnut or synthetic fibers, such as nylon fiber, aramid fiber, polyamide fibre are fine Dimension, acrylic fiber, polypropylene fiber, polyvinyl chloride fibre fiber etc..

The top dome of vibrating diaphragm of the invention step can be formed by the following method.

Firstly, one in the first duralumin layer or the second duralumin layer it is upper adhere to adhesive, with formed the first adhesive layer or Second adhesive layer.The step can be carried out by being coated with, spraying etc. means.The material of adhesive layer 102,103 can be selected respectively Kind adhesive is formed, as long as fibrous layer can be bonded to duralumin layer, forms the top dome of vibrating diaphragm of the invention.

Secondly, by the first adhesive layer or the second adhesive layer that are formed in the side inserting step (1) of fibrous layer.So make Obtaining fiber filament and/or fibre bundle can be arranged longitudinally to the first duralumin layer and the second duralumin layer.

Finally, the fiber filament of the fibrous layer other side and/or fibre bundle are sticked together using the second adhesive layer or the first adhesive layer To the second duralumin layer or the first duralumin layer.The operation can be the gluing duralumin layer after the other side of fibrous layer is coated with adhesive It carries out, is also possible to first form adhesive layer on duralumin layer, then the fiber filament of the fibrous layer other side and/or fibre bundle are inserted into To adhesive layer.

Top dome of the invention may be used as the loudspeaker of electronic equipment.It is set particularly for the electronics with light and thin type structure It is standby, such as mobile phone, tablet computer etc..

Compared with prior art, 100 surface of top dome of the invention is duralumin layer 11,12, and surface smoothness is high, shock resistance; Top dome middle layer 10 of the invention is longitudinal fibrous layer 101 being arranged with duralumin layer 11,12, by adhesive layer 102,103 and firmly Aluminium layer 11,12 engages, and facilitates the weight for mitigating top dome 100, improves sensitivity;100 structure of top dome of the invention is simple, processing It is convenient, it is able to bear high temperature, long service life.And preparation method is simple, strong operability.

It is significantly improved using the loudspeaker of the roof structure and its acoustical behavior of electronic equipment, and production cost is big It is big to reduce.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims (9)

1. a kind of top dome of vibrating diaphragm, which is characterized in that including set gradually from top to bottom the first duralumin layer, middle layer and second Duralumin layer;The middle layer includes fibrous layer and binds the first adhesive layer in the fibrous layer upper and lower surfaces respectively With the second adhesive layer, the fibrous layer by the first adhesive layer and the second adhesive layer respectively with the first duralumin layer and the second duralumin layer Engagement, wherein the fibrous layer is by the fiber filament or fiber longitudinally to the first duralumin layer and the second duralumin layer setting Beam is constituted, wherein has gap, the top and bottom difference of the fiber filament or fibre bundle between the fiber filament or fibre bundle It is inserted into first adhesive layer and second adhesive layer, the fiber filament or fibre bundle are by glass fibre, carbon fiber, carbon nanometer One of pipe fiber, doughnut and synthetic fibers or a variety of compositions.
2. the top dome of vibrating diaphragm according to claim 1, which is characterized in that the thickness of the first duralumin layer and the second duralumin layer Degree is 5~25 μm.
3. the top dome of vibrating diaphragm according to claim 1, which is characterized in that the thickness of first adhesive layer and the second adhesive layer Degree is 5~30 μm.
4. the top dome of vibrating diaphragm according to claim 3, which is characterized in that the fibrous layer with a thickness of 80~300 μm, institute The length for stating fiber filament and/or fibre bundle is 100~400 μm.
5. the top dome of vibrating diaphragm according to claim 4, which is characterized in that the filametntary diameter is 1~100nm, institute The diameter for stating fibre bundle is 1-70 μm.
6. the top dome of vibrating diaphragm according to claim 5, which is characterized in that fiber filament and/or fiber in the fibrous layer Beam is arranged parallel to each other, or the arrangement that intersects.
7. the top dome of vibrating diaphragm according to claim 6, which is characterized in that the fiber filament and/or fibre bundle perpendicular to, connect Closely it is transversely or obliquely relative to the first duralumin layer and the second duralumin layer.
8. a kind of method for making such as top dome of any of claims 1-7 characterized by comprising
S1 adheres to adhesive on the first duralumin layer, to form the first adhesive layer;
The side of fibrous layer is inserted into the first adhesive layer by S2, so that fiber filament and/or fibre bundle are set longitudinally to the first duralumin layer It sets;
The fiber filament of the fibrous layer other side and/or fibre bundle are adhered to the second duralumin layer using the second adhesive layer by S3, so that fine Dimension silk and/or fibre bundle are arranged longitudinally to the second duralumin layer.
9. preparation method according to claim 8, which is characterized in that step S3 includes being coated with glue in the other side of fibrous layer Glutinous agent, and gluing the second duralumin layer, or the second adhesive layer is formed on the second duralumin layer, then by the fiber of the fibrous layer other side Silk and/or fibre bundle are inserted into the second adhesive layer.
CN201510454111.4A 2015-07-29 2015-07-29 A kind of top dome of vibrating diaphragm and preparation method thereof CN106412773B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510454111.4A CN106412773B (en) 2015-07-29 2015-07-29 A kind of top dome of vibrating diaphragm and preparation method thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510454111.4A CN106412773B (en) 2015-07-29 2015-07-29 A kind of top dome of vibrating diaphragm and preparation method thereof
PCT/CN2015/090762 WO2017016060A1 (en) 2015-07-29 2015-09-25 Dome of vibration diaphragm and manufacturing method thereof

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CN106412773A CN106412773A (en) 2017-02-15
CN106412773B true CN106412773B (en) 2019-03-26

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102685649A (en) * 2012-05-30 2012-09-19 常州市友晟电子有限公司 Novel dome
CN104469627A (en) * 2013-12-18 2015-03-25 东莞泉声电子有限公司 Acoustic metal vibrating diaphragm

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007030665A1 (en) * 2007-07-02 2009-01-15 Norman Gerkinsmeyer Diaphragm with multi-part construction

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102685649A (en) * 2012-05-30 2012-09-19 常州市友晟电子有限公司 Novel dome
CN104469627A (en) * 2013-12-18 2015-03-25 东莞泉声电子有限公司 Acoustic metal vibrating diaphragm

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WO2017016060A1 (en) 2017-02-02
CN106412773A (en) 2017-02-15

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