CN110049410A - 振膜基材及其制备方法、振膜及扬声器 - Google Patents

振膜基材及其制备方法、振膜及扬声器 Download PDF

Info

Publication number
CN110049410A
CN110049410A CN201910233993.XA CN201910233993A CN110049410A CN 110049410 A CN110049410 A CN 110049410A CN 201910233993 A CN201910233993 A CN 201910233993A CN 110049410 A CN110049410 A CN 110049410A
Authority
CN
China
Prior art keywords
material layer
polymer material
membrane substrate
shaking membrane
glue
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201910233993.XA
Other languages
English (en)
Inventor
梁平
赵彬
杨彬彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Technologies Pte Ltd
Original Assignee
AAC Technologies Pte Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AAC Technologies Pte Ltd filed Critical AAC Technologies Pte Ltd
Priority to CN201910233993.XA priority Critical patent/CN110049410A/zh
Publication of CN110049410A publication Critical patent/CN110049410A/zh
Priority to US16/727,975 priority patent/US20200314544A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/20—Layered products comprising a layer of natural or synthetic rubber comprising silicone rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/285—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyethers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/288—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyketones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/42—Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/05—Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/38—Loudspeaker cones; Acoustic diaphragms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2274/00—Thermoplastic elastomer material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/51—Elastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56—Damping, energy absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/734—Dimensional stability
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2371/00—Polyethers, e.g. PEEK, i.e. polyether-etherketone; PEK, i.e. polyetherketone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/025—Diaphragms comprising polymeric materials
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

本发明公开了一种振膜基材及其制备方法、振膜及扬声器，其中，振膜基材包括第一粘接层、第二粘接层、由高分子材料制成的第一高分子材料层、由高分子材料制成的第二高分子材料层和由多孔阻尼材料制成的多孔阻尼材料层，所述多孔阻尼材料层具有相背设置的第一侧面和第二侧面，所述第一高分子材料层通过所述第一粘接层粘接于所述第一侧面，所述第二高分子材料层通过所述第二粘接层粘接于所述第二侧面。本发明的有益效果在于：(1)采用本发明振膜基材制成的产品尺寸可以保持一致性。(2)本发明的振膜基材能够抑制和改善高温情况下高分子材料性能的变异，因而采用本发明振膜基材的扬声器等产品振幅随温度升高偏移较小，提高了产品性能的稳定性。

Description

振膜基材及其制备方法、振膜及扬声器
技术领域
本发明涉及声学设备领域，尤其涉及一种振膜基材、该振膜基材的制备方法、采用该振膜基材制备的振膜及具有该振膜的扬声器。
背景技术
目前，振膜基材一般采用弹性模量较小的高分子材料制成，这些高分子材料弹性模量较小，有比较好的弹性。但是，由于这些高分子材料不耐高温，在部分扬声器等产品上，当温度上升到一定程度的时候(产品持续振动或者做可靠性实验)，产品振幅会越来越大，产生偏移，致使产品摇摆，可直接导致产品性能失效。图1为采用现有的振膜基材在不同的温度下，分别震动20ms和500ms的振幅变化图，20ms与500ms代表测试现有振膜基材同一个频率阶段区间所用不同的时间，时间越长，振动次数越多，产品温度越高。从图中我们可以看到现有振膜基材在20ms与500ms测试条件下，产品上同一个点振幅出现显著的偏移。
发明内容
为了克服现有技术的不足，本发明的目的之一在于提供一种高温下振幅偏移小的振膜基材。
本发明的目的之二在于提供高温下振幅偏移小的振膜基材的制备方法。
本发明的目的之三在于提供采用高温下振幅偏移小的振膜基材制备的振膜。
本发明的目的之四在于提供一种具有高温下振幅偏移小的振膜的扬声器。
本发明的目的之一采用如下技术方案实现：一种振膜基材，包括第一粘接层、第二粘接层、由高分子材料制成的第一高分子材料层、由高分子材料制成的第二高分子材料层和由多孔阻尼材料制成的多孔阻尼材料层，所述多孔阻尼材料层具有相背设置的第一侧面和第二侧面，所述第一高分子材料层通过所述第一粘接层粘接于所述第一侧面，所述第二高分子材料层通过所述第二粘接层粘接于所述第二侧面。
进一步地，所述第一粘接层和/或所述第二粘接层由胶水固化形成。
进一步地，所述第一高分子材料层和所述第二高分子材料层分别采用硅橡胶、热塑性弹性体、热塑性聚氨酯弹性体橡胶、聚醚醚酮、聚对苯二甲酸乙二酯中的至少一种制成。
可选地，所述第一高分子材料层和所述第二高分子材料层的材质不同。
进一步地，所述多孔阻尼材料层采用聚邻苯二甲酰胺、聚醚酮材料中的至少一种制成。
进一步地，所述多孔阻尼材料层为具有多个通孔的网格状结构。
本发明的目的之二采用如下技术方案实现：
一种上述的振膜基材的制备方法，包括以下步骤：
分别制备第一高分子材料层、第二高分子材料层和多孔阻尼材料层；
将所述第一高分子材料层和和所述第二高分子材料层分别粘接固定于所述多孔阻尼材料层的第一侧面和第二侧面，制成所述振膜基材。
可选地，所述第一高分子材料层、所述第二高分子材料层与所述多孔阻尼材料层的粘接方式为：分别在第一高分子材料层和第二高分子材料层的一侧面上涂布胶水，将所述第一高分子材料层涂布有胶水的侧面贴合于所述第一侧面，将所述第二高分子材料层涂布有胶水的侧面贴合于所述第二侧面；或者，
所述第一高分子材料层、所述第二高分子材料层与所述多孔阻尼材料层的粘接方式为：分别在所述第一侧面和所述第二侧面上涂布胶水，将所述第一高分子材料层贴合于涂布有胶水的所述第一侧面，将所述第二高分子材料层贴合于涂布有胶水的所述第二侧面；或者，
所述第一高分子材料层、所述第二高分子材料层与所述多孔阻尼材料层的粘接方式为：在第一高分子材料层的一侧面上涂布胶水，将所述第一高分子材料层涂布有胶水的侧面贴合于所述第一侧面上，在所述第二侧面上涂布胶水，然后将所述第二高分子材料层贴合于涂有胶水的所述第二侧面上。
本发明的目的之三采用如下技术方案实现：一种振膜，由上述的振膜基材加工而成。
本发明的目的之四采用如下技术方案实现：一种扬声器，包括磁路系统、振动系统以及设有收容腔的盆架，所述磁路系统和振动系统均收容于所述收容腔中，所述振动系统包括与所述盆架顶部连接的振膜，所述振膜采用上述的振膜，第一高分子材料层或第二高分子材料层位于所述振膜靠近所述盆架的一侧。
相比现有技术，本发明的有益效果在于：(1)多孔阻尼材料具有较高的结构强度，能够抑制高分子材料的收缩性，因而可确保采用本发明振膜基材制成的产品尺寸保持一致性。(2)本发明的振膜基材能够抑制和改善高温情况下高分子材料性能的变异，因而采用本发明振膜基材的扬声器等产品振幅随温度升高偏移较小，提高了产品性能的稳定性。
附图说明
图1为现有振膜材料在不同的温度下分别震动20ms和500ms的振幅变化示意图；
图2为本发明实施例提供的振膜基材的立体结构示意图；
图3为本发明实施例提供的振膜基材的主视平面图；
图4为本发明实施例提供的振膜基材的爆炸示意图；
图5为本发明实施例提供的振膜基材在不同的温度下分别震动20ms和500ms的振幅变化示意图；
图6为本发明实施例提供的扬声器一个视角的立体图；
图7为图6中A-A的剖视图。
图中：1、振膜基材；111、第一高分子材料层；112、第二高分子材料层；12、多孔阻尼材料层；121、通孔；122、第一侧面；123、第二侧面；131、第一粘接层；132、第二粘接层；20、扬声器；21、磁路系统；211、磁框；212、永磁铁；213、极芯；22、振动系统；221、振膜；222、音圈；23、盆架。
具体实施方式
下面，结合附图以及具体实施方式，对本发明做进一步描述，需要说明的是，在不相冲突的前提下，以下描述的各实施例之间或各技术特征之间可以任意组合形成新的实施例。
如图2-5所示，本发明实施例提供的一种振膜基材1，包括第一粘接层131、第二粘接层132、由高分子材料制成的第一高分子材料层111、由高分子材料制成的第二高分子材料层112和由多孔阻尼材料制成的多孔阻尼材料层12，多孔阻尼材料层12具有相背设置的第一侧面122和第二侧面123，第一高分子材料层111通过第一粘接层131粘接于第一侧面122，第二高分子材料层112通过第二粘接层132粘接于第二侧面123。因为在本实施例振膜基材1中增加了多孔阻尼材料层12，多孔阻尼材料具有较高的结构强度，能够抑制高分子材料的收缩性，因而可确保采用本实施例振膜基材1制成的产品尺寸保持一致性，并且本实施例的振膜基材1能够抑制和改善高温情况下高分子材料性能的变异，因而采用本实施例振膜基材1的扬声器等产品振幅随温度升高偏移较小，提高了产品性能的稳定性。
优选地，第一粘接层131和/或第二粘接层132由胶水固化形成。本发明第一粘接层131和第二粘接层132都是通过胶水涂布后固化形成。
优选地，第一高分子材料层111和第二高分子材料层112分别采用硅橡胶、热塑性弹性体、热塑性聚氨酯弹性体橡胶、聚醚醚酮、聚对苯二甲酸乙二酯中的至少一种制成。这些高分子材料弹性模量较小，有比较好的弹性。第一高分子材料层111和第二高分子材料层112的材质可以相同也可以不同。本实施例中采用材质不同的高分子材料，当然也可以采用材质相同的高分子材料，均可以获得高温下振膜偏小的振膜基材1。
优选地，多孔阻尼材料层12采用聚邻苯二甲酰胺、聚醚酮材料中的至少一种制成。这些多孔阻尼材料结构强度较高，能在高温的情况下抑制高分子材料性能变异。本实施例中，多孔阻尼材料层12为具有多个通孔121的网格状结构。
图5为采用本实施例的振膜基材1在不同的温度下，分别震动20ms和500ms的振幅变化图，20ms与500ms代表测试本实施例振膜基材1同一个频率阶段区间所用不同的时间。从图中我们可以看到本实施例振膜基材1在20ms与50ms测试条件下，产品上同一个点振幅偏移小。
本实施例还提供了上述振膜基材1的制备方法，包括以下步骤：
分别制备高分子材料层和多孔阻尼材料层12；
将高分子材料层和多孔阻尼材料层12层叠粘接固定在一起，制成振膜基材1。
优选地，第一高分子材料层111、第二高分子材料层112与多孔阻尼材料层12的粘接方式为以下五种中的任意一种：第一种，分别在第一高分子材料层111和第二高分子材料层112的一侧面上涂布胶水，将第一高分子材料层111涂布有胶水的侧面贴合于第一侧面122，然后将第一高分子材料层111压紧于多孔阻尼材料层12，再将第二高分子材料层112涂布有胶水的侧面贴合于第二侧面123，最后将第二高分子材料层112压紧于多孔阻尼材料层12；第二种，分别在第一高分子材料层111和第二高分子材料层112的一侧面上涂布胶水，将第一高分子材料层111涂布有胶水的侧面贴合于第一侧面122，将第二高分子材料层112涂布有胶水的侧面贴合于第二侧面123，然后将第一高分子材料层111和第二高分子材料层112压紧于多孔阻尼材料层12；第三种，分别在第一侧面122和第二侧面123上涂布胶水，将第一高分子材料层111贴合于涂布有胶水的第一侧面122，将第二高分子材料层112贴合于涂布有胶水的第二侧面123，然后将第一高分子材料层111和第二高分子材料层112压紧于多孔阻尼材料层12上；第四种，在第一高分子材料层111的一侧面上涂布胶水，将第一高分子材料层111涂布有胶水的侧面贴合于第一侧面122上，之后将第一高分子材料层111压紧于多孔阻尼材料层12上，然后在第二侧面123上涂布胶水，并将第二高分子材料层112贴合于涂有胶水的第二侧面123上，最后将第二高分子材料层112压紧于多孔阻尼材料层12上；第五种，在第一高分子材料层111的一侧面上涂布胶水，将第一高分子材料层111涂布有胶水的侧面贴合于第一侧面122上，在第二侧面123上涂布胶水，然后将第二高分子材料层112贴合于涂有胶水的第二侧面123上，然后将第一高分子材料层111和第二高分子材料层112压紧于多孔阻尼材料层12。
本实施例提供的振膜，由上述振膜基材1加工而成。由于采用上述的振膜基材1加工而成，故振膜的振幅随温度升高偏移较小，产品性能比较稳定。将振膜基材1加工形成振膜，具体可包括对振膜基材1进行裁切、冲压成型等加工操作。
如图6-7所示，本实施例提供的扬声器20，包括磁路系统21、振动系统22以及设有收容腔的盆架23，磁路系统21和振动系统22均收容于收容腔中，振动系统22包括与盆架23顶部连接的振膜221，振膜221采用本实施例提供的振膜，第一高分子材料层111或第二高分子材料层112位于振膜211靠近盆架23的一侧。在一较佳实施方案中，磁路系统21包括与盆架23底部连接的磁框211、收容于磁框211中的永磁铁212和固定于永磁铁212的顶部的极芯213，永磁铁212的底部固定至磁框211内，振动系统22包括与盆架23顶部连接的振膜221和设于振膜221底部且位于收容腔中的音圈222，音圈222在磁路系统21产生的磁场的作用下进行运动，从而带动振膜221上下震动。
上述实施方式仅为本发明的优选实施方式，不能以此来限定本发明保护的范围，本领域的技术人员在本发明的基础上所做的任何非实质性的变化及替换均属于本发明所要求保护的范围。

Claims (10)

1.一种振膜基材，其特征在于，包括第一粘接层、第二粘接层、由高分子材料制成的第一高分子材料层、由高分子材料制成的第二高分子材料层和由多孔阻尼材料制成的多孔阻尼材料层，所述多孔阻尼材料层具有相背设置的第一侧面和第二侧面，所述第一高分子材料层通过所述第一粘接层粘接于所述第一侧面，所述第二高分子材料层通过所述第二粘接层粘接于所述第二侧面。
2.根据权利要求1所述的振膜基材，其特征在于，所述第一粘接层和/或所述第二粘接层由胶水固化形成。
3.根据权利要求2所述的振膜基材，其特征在于，所述第一高分子材料层和所述第二高分子材料层分别采用硅橡胶、热塑性弹性体、热塑性聚氨酯弹性体橡胶、聚醚醚酮、聚对苯二甲酸乙二酯中的至少一种制成。
4.根据权利要求3所述的振膜基材，其特征在于，所述第一高分子材料层和所述第二高分子材料层的材质不同。
5.根据权利要求1至4任一项所述的振膜基材，其特征在于，所述多孔阻尼材料层采用聚邻苯二甲酰胺、聚醚酮材料中的至少一种制成。
6.根据权利要求5所述的振膜基材，其特征在于，所述多孔阻尼材料层为具有多个通孔的网格状结构。
7.一种如权利要求1至6任一项所述的振膜基材的制备方法，其特征在于，包括以下步骤：
分别制备第一高分子材料层、第二高分子材料层和多孔阻尼材料层；
将所述第一高分子材料层和所述第二高分子材料层分别粘接固定于所述多孔阻尼材料层的第一侧面和第二侧面，制成所述振膜基材。
8.根据权利要求7所述的振膜基材的制备方法，其特征在于，所述第一高分子材料层、所述第二高分子材料层与所述多孔阻尼材料层的粘接方式为：分别在第一高分子材料层和第二高分子材料层的一侧面上涂布胶水，将所述第一高分子材料层涂布有胶水的侧面贴合于所述第一侧面，将所述第二高分子材料层涂布有胶水的侧面贴合于所述第二侧面；或者，
所述第一高分子材料层、所述第二高分子材料层与所述多孔阻尼材料层的粘接方式为：分别在所述第一侧面和所述第二侧面上涂布胶水，将所述第一高分子材料层贴合于涂布有胶水的所述第一侧面，将所述第二高分子材料层贴合于涂布有胶水的所述第二侧面；或者，
所述第一高分子材料层、所述第二高分子材料层与所述多孔阻尼材料层的粘接方式为：在第一高分子材料层的一侧面上涂布胶水，将所述第一高分子材料层涂布有胶水的侧面贴合于所述第一侧面上，在所述第二侧面上涂布胶水，然后将所述第二高分子材料层贴合于涂有胶水的所述第二侧面上。
9.一种振膜，其特征在于，由上述权利要求1至6中任一项所述的振膜基材加工而成。
10.一种扬声器，包括磁路系统、振动系统以及设有收容腔的盆架，所述磁路系统和振动系统均收容于所述收容腔中，所述振动系统包括与所述盆架顶部连接的振膜，其特征在于，所述振膜采用如权利要求9所述的振膜，第一高分子材料层或第二高分子材料层位于所述振膜靠近所述盆架的一侧。
CN201910233993.XA 2019-03-26 2019-03-26 振膜基材及其制备方法、振膜及扬声器 Withdrawn CN110049410A (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201910233993.XA CN110049410A (zh) 2019-03-26 2019-03-26 振膜基材及其制备方法、振膜及扬声器
US16/727,975 US20200314544A1 (en) 2019-03-26 2019-12-27 Substrate material of diaphragm and method for manufacturing same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910233993.XA CN110049410A (zh) 2019-03-26 2019-03-26 振膜基材及其制备方法、振膜及扬声器

Publications (1)

Publication Number Publication Date
CN110049410A true CN110049410A (zh) 2019-07-23

Family

ID=67275270

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910233993.XA Withdrawn CN110049410A (zh) 2019-03-26 2019-03-26 振膜基材及其制备方法、振膜及扬声器

Country Status (2)

Country Link
US (1) US20200314544A1 (zh)
CN (1) CN110049410A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112261549A (zh) * 2020-09-29 2021-01-22 瑞声新能源发展(常州)有限公司科教城分公司 振膜及发声器件

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1516521A (zh) * 2002-12-09 2004-07-28 安桥株式会社 扬声器振动膜片及其制造方法
US20070098207A1 (en) * 2005-11-02 2007-05-03 Beston Technology Corporation Structure of ribbon type planar speaker
CN102582182A (zh) * 2012-03-15 2012-07-18 楼氏电子（北京）有限公司 微型电声换能器
CN202652511U (zh) * 2012-01-05 2013-01-02 瑞声光电科技(常州)有限公司 扬声器振膜及扬声器
CN208337866U (zh) * 2018-04-17 2019-01-04 东莞涌韵音膜有限公司 三维多层音膜

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1516521A (zh) * 2002-12-09 2004-07-28 安桥株式会社 扬声器振动膜片及其制造方法
US20070098207A1 (en) * 2005-11-02 2007-05-03 Beston Technology Corporation Structure of ribbon type planar speaker
CN202652511U (zh) * 2012-01-05 2013-01-02 瑞声光电科技(常州)有限公司 扬声器振膜及扬声器
CN102582182A (zh) * 2012-03-15 2012-07-18 楼氏电子（北京）有限公司 微型电声换能器
CN208337866U (zh) * 2018-04-17 2019-01-04 东莞涌韵音膜有限公司 三维多层音膜

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112261549A (zh) * 2020-09-29 2021-01-22 瑞声新能源发展(常州)有限公司科教城分公司 振膜及发声器件
CN112261549B (zh) * 2020-09-29 2022-03-29 瑞声新能源发展(常州)有限公司科教城分公司 振膜及发声器件
WO2022068011A1 (zh) * 2020-09-29 2022-04-07 瑞声声学科技(深圳)有限公司 振膜及发声器件

Also Published As

Publication number Publication date
US20200314544A1 (en) 2020-10-01

Similar Documents

Publication Publication Date Title
US11457317B2 (en) Speaker
CN102668598B (zh) 致动器、压电致动器、电子装置,和用于衰减振动并且转换振动方向的方法
KR101514358B1 (ko) 압전 진동 장치 및 그것을 사용한 휴대단말
KR101487272B1 (ko) 압전 진동 장치 및 그것을 사용한 휴대단말
US8335329B2 (en) Piezoelectric speaker and method of manufacturing the same
TWI381747B (zh) 微型揚聲器及其製造方法
US11470425B2 (en) Speaker
US9185495B2 (en) Oscillation device and electronic apparatus
JP5989910B2 (ja) 音響発生器およびこれを備えた音響発生装置、電子機器
CN104137570B (zh) 声音产生器、声音产生装置以及电子设备
JP2004023436A (ja) 圧電スピーカ
CN106211000A (zh) 一种动圈式扬声器
CN110049410A (zh) 振膜基材及其制备方法、振膜及扬声器
CN109905815A (zh) 振膜基材及其制备方法、振膜及扬声器
US9848268B2 (en) Acoustic generator, acoustic generation device, and electronic apparatus
CN206620292U (zh) 一种发声装置及电子设备
US20160337758A1 (en) Acoustic generator, acoustic generation device, and electronic apparatus
CN110012394A (zh) 振膜基材及其制备方法、振膜及扬声器
CN206908821U (zh) 用于扬声器单体的振膜及扬声器单体
CN104768111B (zh) 抑制偏振的扬声器装置和调整振膜平衡位置和顺性的方法
CN207638871U (zh) 一种振膜以及包括该振膜的发声器
US9973856B2 (en) Ultrathin electromagnetic vibration device and its manufacturing method
CN209731557U (zh) 一种微型扬声器振膜结构
US20150023530A1 (en) Portable terminal
CN110012393A (zh) 振膜基材及其制备方法、振膜及扬声器

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20190723