WO2021179492A1 - Dome and loudspeaker - Google Patents

Dome and loudspeaker Download PDF

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Publication number
WO2021179492A1
WO2021179492A1 PCT/CN2020/099550 CN2020099550W WO2021179492A1 WO 2021179492 A1 WO2021179492 A1 WO 2021179492A1 CN 2020099550 W CN2020099550 W CN 2020099550W WO 2021179492 A1 WO2021179492 A1 WO 2021179492A1
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WO
WIPO (PCT)
Prior art keywords
dome
layer
heat radiation
diaphragm
enhancement layer
Prior art date
Application number
PCT/CN2020/099550
Other languages
French (fr)
Chinese (zh)
Inventor
翟成祥
孔洋洋
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歌尔股份有限公司
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Publication date
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Publication of WO2021179492A1 publication Critical patent/WO2021179492A1/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
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • H04R9/022Cooling arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/046Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/20Layered products comprising a layer of metal comprising aluminium or copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/36Layered products comprising a layer of synthetic resin comprising polyesters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered 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
    • B32B3/02Layered 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 features of form at particular places, e.g. in edge regions
    • B32B3/08Layered 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 features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/03Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • H04R9/025Magnetic circuit
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06Loudspeakers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/10Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/20Inorganic coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00Electrical equipment

Definitions

  • the present invention relates to the technical field of sound emitting devices, in particular to a dome and loudspeaker.
  • the main purpose of the present invention is to provide a dome, aiming to improve the heat dissipation performance of the speaker with the dome.
  • the dome provided by the present invention is used for speakers, and includes:
  • the dome body has a first side surface and a second side surface opposite to each other.
  • the first side surface includes a middle area and a peripheral area surrounding the middle area, and the peripheral area is used to combine with the diaphragm of the speaker ;as well as
  • the heat radiation enhancement layer is arranged on the second side surface and/or the middle area.
  • the thickness of the heat radiation enhancement layer is less than or equal to 20 microns.
  • the thickness of the heat radiation enhancement layer is greater than or equal to 3 microns.
  • the heat radiation enhancing material used in the heat radiation enhancing layer is one or more of nano-carbon, graphene, carbon tube, boron nitride, silicon carbide, and aluminum nitride.
  • the heat radiation enhancement layer is a granular layer.
  • the dome body includes a foamed material layer and a thermally conductive material layer covering the foamed material layer; or, the dome body is a plastic layer.
  • the thermally conductive material layer is a metal material layer.
  • the plastic layer is a PEN layer or a PET layer.
  • the present invention also provides a loudspeaker including a diaphragm and the aforementioned dome, and the peripheral area of the first side surface of the dome is combined with the diaphragm.
  • peripheral area and the diaphragm are combined by a thermally conductive adhesive.
  • a heat radiation enhancement layer is added to the second side surface and/or the middle area to increase the heat radiation capability of the dome, thereby improving the heat dissipation capability of the dome; thus, the heat generated by the voice coil After being transferred to the dome via the diaphragm, it can radiate through the heat radiation enhancement layer with a larger area of the dome, thereby improving the heat dissipation effect of the speaker.
  • Fig. 1 is a schematic structural diagram of an embodiment of a loudspeaker of the present invention
  • Figure 2 is an enlarged view of A in Figure 1;
  • FIG. 3 is a schematic structural diagram of an embodiment of the dome of the speaker in FIG. 1;
  • FIG. 4 is a schematic structural diagram of another embodiment of the dome of the speaker in FIG. 1;
  • Figure 5 is a graph of the temperature rise comparison between the dome of the invention and the ordinary dome.
  • the directional indication is only used to explain that it is in a specific posture (as shown in the drawings). If the specific posture changes, the relative positional relationship, movement, etc. of the components below will also change the directional indication accordingly.
  • the invention proposes a dome.
  • the dome 10 is used for a speaker, and the speaker further includes a diaphragm 20 and a voice coil 30.
  • the dome 10 is coupled to one side of the diaphragm 20, and the voice coil 30 is coupled On the other side of the diaphragm 20.
  • the dome 10 includes:
  • the dome body 11 has a first side surface and a second side surface opposite to each other, the first side surface includes a middle area and a peripheral area surrounding the middle area, and the peripheral area is used for combining with the diaphragm 20; and
  • the heat radiation enhancement layer 12 is arranged on the second side surface.
  • the second side surface is the side of the dome body 11 facing away from the diaphragm 20 and facing the air. Therefore, the radiation direction of the heat radiation enhancement layer 12 provided on the second side surface is toward the air. , And radiate heat into the air.
  • the heat radiation enhancement layer 12 is provided in the middle area; it can be understood that although the first side surface of the dome body 11 faces the diaphragm 20 and faces away from the air However, the position corresponding to the middle area on the diaphragm 20 is usually hollowed out, so the heat radiation enhancement layer 12 disposed in the middle area can radiate heat to the magnetic circuit system of the speaker through the hollowed out position on the diaphragm 20, The heat is dissipated into the air through the outer surface of the magnetic circuit system.
  • the heat radiation enhancement layer 12 may be provided on both the second side surface and the middle area, so as to radiate heat into the air through two radiation directions and radiation paths.
  • the aforementioned embodiments are all based on “the dome 10 is coupled to one side of the diaphragm 20, and the voice coil 30 is coupled to the other side of the diaphragm 20".
  • the dome 10 and the voice coil 30 can also be located on the same side of the diaphragm 20 (the side facing the magnetic circuit system).
  • the middle area can face the air through the hollow position on the diaphragm 20.
  • the second side is facing away from the air and facing the magnetic circuit system.
  • the second side and/or the middle area is provided with a heat radiation enhancement layer 12, but The radiation direction and radiation path of the heat radiation enhancement layer 12 of the second side surface and the middle region are just opposite to those of the previous embodiment.
  • the heat radiation enhancement layer 12 is usually not provided on the peripheral area.
  • the main heat source is the voice coil 30, and the heat generated by the voice coil 30 will be transferred to the diaphragm 20, and then from the diaphragm 20 to the dome 10.
  • a heat radiation enhancement layer 12 is added to the second side surface and/or the middle area to increase the heat radiation capacity of the dome 10, thereby improving the heat dissipation capacity of the dome 10; thus, the voice coil 30 After the generated heat is transferred to the dome 10 via the diaphragm 20, it can be radiated through the heat radiation enhancement layer 12 of the dome 10 with a larger area, thereby improving the heat dissipation effect of the speaker.
  • the thickness of the heat radiation enhancement layer 12 is less than or equal to 20 microns. It can be understood that if the heat radiation enhancement layer 12 is too thick, more heat radiation enhancement materials are required, the cost is higher, and the weight of the heat radiation enhancement layer 12 will be heavier, making the dome 10 Excessive weight gain affects acoustic performance.
  • the thickness of the heat radiation enhancement layer 12 is greater than or equal to 3 microns. It can be understood that if the heat radiation enhancement layer 12 is too thin, it will not be conducive to the spreading of the heat radiation enhancement layer 12 on the second side surface and/or the middle area, and it is easy to appear that some locations are not heated by the heat. The phenomenon covered by the radiation enhancement layer 12, in this way, will affect the improvement of the heat dissipation capacity of the dome 10.
  • the thickness of the heat radiation enhancement layer 12 ranges from 3 ⁇ m to 20 ⁇ m, and the thickness range is moderate, so as to take into account the low cost, low weight, and ease of full preparation of the heat radiation enhancement layer 12; and, The thickness is small, so that the dome 10 of the present invention has no obvious increase in thickness and weight compared with the ordinary dome 10, so that the acoustic performance of the speaker is basically unchanged.
  • the heat radiation enhancing material used in the heat radiation enhancing layer 12 is one or more of nano-carbon, graphene, carbon tube, boron nitride, silicon carbide, and aluminum nitride. It can be understood that nano-carbon, graphene, carbon tube, boron nitride, silicon carbide, aluminum nitride and other materials have high thermal emissivity, which can enhance the heat radiation ability of the dome 10, thereby improving the heat dissipation of the dome 10 Effect. Taking nano-carbon as the heat radiation enhancement material used as an example, the thermal emissivity of nano-carbon is about 0.98, while the thermal emissivity of common aluminum material is only 0.55.
  • nano-carbon material has a higher thermal emissivity;
  • nano-carbon is black, which is good for absorbing and storing infrared light and heat radiation.
  • the working temperature of the speaker may reach 100 degrees Celsius, which belongs to infrared light and heat radiation. Therefore, when the dome 10 is close to the side of the magnetic circuit system (for example, When the middle area of the dome in the embodiment of FIG. 1 is provided with a heat radiation enhancement layer 12 and its material is black material such as nano carbon, the heat radiation enhancement layer 12 can also radiate the voice coil 30 well. The heat is absorbed and stored, and the heat is quickly radiated into the air through the air-facing side of the dome 10 (for example, the second side of the dome in the embodiment of FIG. 1).
  • the heat radiation enhancement layer 12 is a granular layer to increase its heat dissipation surface area, thereby facilitating further enhancement of its heat radiation capability, thereby further improving the heat dissipation capability of the dome 10.
  • the heat radiation enhancement layer 12 is obtained by coating, which is usually by preparing a granular heat radiation enhancement material (such as nano carbon) into a coating solution, and then coating The cloth liquid is applied to the second side surface of the dome body 11 and/or the middle area. After the solvent in the coating liquid is volatilized, it can be applied to the second side surface of the dome body 11 and/or the middle area. The cured heat radiation enhancement layer 12 is formed thereon.
  • the second side surface of the dome body 11 and/or the middle area may be roughened first, so that the second side surface and/or the middle area are formed with tiny particles.
  • the bump structure is usually by preparing a granular heat radiation enhancement material (such as nano carbon) into a coating solution, and then coating The cloth liquid is applied to the second side surface of the dome body
  • the gray temperature rise curve relates to the dome 10 provided with the nano-carbon particle layer of the present invention
  • the black temperature rise curve relates to the ordinary dome 10 of the present invention. From the comparison of the temperature rise curves in FIG. 5, it can be seen that, compared with the ordinary dome 10, the dome 10 of the present invention can reduce the temperature rise by about 3.6 degrees Celsius (average value), which shows that the dome 10 of the present invention is compared with Compared with the ordinary dome 10, it has better heat dissipation capacity.
  • the dome body 11 includes a foamed material layer 111 and a thermally conductive material layer 112 covering the foamed material layer 111.
  • the foamed material is light in weight, which is beneficial to the lightening of the dome 10 and prevents the vibration performance of the diaphragm 20 from being affected; on the one hand, the thermal conductive material layer 112 is beneficial to export the heat generated by the voice coil 30 to the heat
  • the radiation enhancement layer 12 can improve the heat dissipation effect of the dome 10, on the other hand, it can enhance the structural strength of the dome 10 and improve its impact resistance.
  • the thermally conductive material layer 112 is a metal material layer; the thermal conductivity of the metal material is relatively high, which is beneficial to export the heat generated by the voice coil 30 to the heat radiation enhancement layer 12, and the metal material is also Has good strength.
  • the metal material layer may be a copper material layer, an aluminum material layer, etc., to take into account high thermal conductivity, low cost, and strong rigidity.
  • the dome body 11 may also be a plastic layer. It can be understood that plastics are lighter in weight, lower in cost, and easy to form and prepare.
  • the plastic layer may be, but not limited to, a PEN (polyethylene naphthalate) layer or a PET (polyethylene terephthalate) layer that both have good physical and mechanical properties and heat resistance.
  • the present invention also proposes a loudspeaker.
  • the loudspeaker includes a diaphragm 20 and a dome 10.
  • the dome 10 For the specific structure of the dome 10, refer to the above-mentioned embodiments. Because the present loudspeaker adopts all the technologies of all the above-mentioned embodiments. The solution, therefore, has at least all the beneficial effects brought about by the technical solution of the above-mentioned embodiment, and will not be repeated here.
  • the peripheral area of the first side surface of the dome 10 is combined with the diaphragm 20.
  • the peripheral area and the diaphragm 20 are combined with a thermally conductive adhesive to enhance the heat transfer efficiency between the diaphragm 20 and the dome 10, so that the heat generated by the voice coil 30 can quickly pass through the vibration
  • the film 20 is transferred to the dome 10, so that the dome 10 can radiate heat into the air through the heat radiation enhancement layer 12, thereby improving the heat dissipation effect of the speaker.
  • the peripheral area and the diaphragm 20 can also be combined by ordinary adhesive glue, but the thickness of the ordinary adhesive glue is small, for example, 10 microns. ⁇ 30 microns, usually 20 microns, so that heat transfer between the diaphragm 20 and the dome 10 can be faster.
  • the peripheral area and the diaphragm 20 are connected by at least one ring of ordinary adhesive glue, and at least one ring of thermally conductive glue is also provided between the peripheral area and the diaphragm 20 , In order to improve the heat transfer efficiency between the diaphragm 20 and the dome 10.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

Disclosed in the present invention are a dome and a loudspeaker. The dome comprises: a dome body provided with a first side surface and a second side surface which are opposite to each other, wherein the first side surface comprises a middle area and a peripheral area surrounding the middle area, and the peripheral area is used for being combined with a diaphragm of the loudspeaker; and a heat radiation enhancement layer provided on the second side surface and/or the middle area. The technical solutions of the present invention can improve the heat-dissipation performance of the loudspeaker.

Description

球顶和扬声器Dome and speakers 技术领域Technical field
本发明涉及发声装置技术领域,特别涉及一种球顶和扬声器。The present invention relates to the technical field of sound emitting devices, in particular to a dome and loudspeaker.
背景技术Background technique
随着智能手机的飞速发展,手机的应用场景越来越宽泛,用户对手机各方面的要求越来越高。玩游戏,看大片,欣赏音乐,都需要高品质的音效。这就对扬声器的提出了更高的要求,响度要大,音质要好。高响度常常伴随着高功率,而扬声器自身声效率非常低,故而输入的功率绝大部分都成为了热量。但扬声器的各零部件的耐温是有限的,为了防止扬声器被高温烧坏,需要提高扬声器的散热性能。With the rapid development of smart phones, the application scenarios of mobile phones are becoming wider and wider, and users have higher and higher requirements for all aspects of mobile phones. Playing games, watching blockbuster movies, and enjoying music all require high-quality sound effects. This puts forward higher requirements for the loudspeaker, the loudness should be large, and the sound quality should be good. High loudness is often accompanied by high power, and the sound efficiency of the speaker itself is very low, so most of the input power becomes heat. However, the temperature resistance of each component of the speaker is limited. In order to prevent the speaker from being burned out by high temperature, it is necessary to improve the heat dissipation performance of the speaker.
发明内容Summary of the invention
本发明的主要目的是提出一种球顶,旨在提高具有该球顶的扬声器的散热性能。The main purpose of the present invention is to provide a dome, aiming to improve the heat dissipation performance of the speaker with the dome.
为实现上述目的,本发明提出的球顶用于扬声器,并包括:In order to achieve the above-mentioned objects, the dome provided by the present invention is used for speakers, and includes:
球顶本体,具有相对的第一侧面和第二侧面,所述第一侧面包括中间区域、及环设于所述中间区域的外围区域,所述外围区域用以与所述扬声器的振膜结合;以及The dome body has a first side surface and a second side surface opposite to each other. The first side surface includes a middle area and a peripheral area surrounding the middle area, and the peripheral area is used to combine with the diaphragm of the speaker ;as well as
热辐射增强层,设于所述第二侧面及/或所述中间区域。The heat radiation enhancement layer is arranged on the second side surface and/or the middle area.
可选地,所述热辐射增强层的厚度小于或等于20微米。Optionally, the thickness of the heat radiation enhancement layer is less than or equal to 20 microns.
可选地,所述热辐射增强层的厚度大于或等于3微米。Optionally, the thickness of the heat radiation enhancement layer is greater than or equal to 3 microns.
可选地,所述热辐射增强层所采用的热辐射增强材质为纳米碳、石墨烯、碳管、氮化硼、碳化硅、氮化铝中的一种或多种。Optionally, the heat radiation enhancing material used in the heat radiation enhancing layer is one or more of nano-carbon, graphene, carbon tube, boron nitride, silicon carbide, and aluminum nitride.
可选地,所述热辐射增强层为颗粒层。Optionally, the heat radiation enhancement layer is a granular layer.
可选地,所述球顶本体包括发泡材质层、及包覆所述发泡材质层的导热材质层;或者,所述球顶本体为塑料层。Optionally, the dome body includes a foamed material layer and a thermally conductive material layer covering the foamed material layer; or, the dome body is a plastic layer.
可选地,所述导热材质层为金属材质层。Optionally, the thermally conductive material layer is a metal material layer.
可选地,所述塑料层为PEN层或PET层。Optionally, the plastic layer is a PEN layer or a PET layer.
本发明还提出一种扬声器,包括振膜、及前述的球顶,所述球顶的第一侧面的外围区域与所述振膜结合。The present invention also provides a loudspeaker including a diaphragm and the aforementioned dome, and the peripheral area of the first side surface of the dome is combined with the diaphragm.
可选地,所述外围区域与所述振膜之间通过导热粘接胶结合。Optionally, the peripheral area and the diaphragm are combined by a thermally conductive adhesive.
本发明的技术方案通过在所述第二侧面及/或所述中间区域增设热辐射增强层,以提高球顶的热辐射能力,从而提高球顶的散热能力;如此,音圈所产生的热量经由振膜传递到球顶后,能通过具有较大面积的球顶的热辐射增强层进行辐射,从而提高扬声器的散热效果。In the technical solution of the present invention, a heat radiation enhancement layer is added to the second side surface and/or the middle area to increase the heat radiation capability of the dome, thereby improving the heat dissipation capability of the dome; thus, the heat generated by the voice coil After being transferred to the dome via the diaphragm, it can radiate through the heat radiation enhancement layer with a larger area of the dome, thereby improving the heat dissipation effect of the speaker.
附图说明Description of the drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图示出的结构获得其他的附图。In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on the structure shown in these drawings.
图1为本发明扬声器一实施例的结构示意图;Fig. 1 is a schematic structural diagram of an embodiment of a loudspeaker of the present invention;
图2为图1中A处的放大图;Figure 2 is an enlarged view of A in Figure 1;
图3为图1中扬声器的球顶一实施例的结构示意图;3 is a schematic structural diagram of an embodiment of the dome of the speaker in FIG. 1;
图4为图1中扬声器的球顶另一实施例的结构示意图;4 is a schematic structural diagram of another embodiment of the dome of the speaker in FIG. 1;
图5为本发明球顶与普通球顶的温升对比曲线图。Figure 5 is a graph of the temperature rise comparison between the dome of the invention and the ordinary dome.
附图标号说明:Attached icon number description:
标号Label 名称 name 标号Label 名称name
1010 球顶Ball top 1111 球顶本体 Dome body
111111 发泡材质层 Foam material layer 112112 导热材质层Thermal conductive material layer
1212 热辐射增强层Heat radiation enhancement layer 2020 振膜 Diaphragm
3030 音圈Voice coil  To  To
本发明目的的实现、功能特点及优点将结合实施例,参照附图做进一步说明。The realization of the objectives, functional characteristics and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明的一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
需要说明,若本发明实施例中有涉及方向性指示(诸如上、下、左、右、前、后……),则该方向性指示仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等,如果该特定姿态发生改变时,则该方向性指示也相应地随之改变。It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain that it is in a specific posture (as shown in the drawings). If the specific posture changes, the relative positional relationship, movement, etc. of the components below will also change the directional indication accordingly.
另外,若本发明实施例中有涉及“第一”、“第二”等的描述,则该“第一”、“第二”等的描述仅用于描述目的,而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外,全文中出现的“和/或”的含义,包括三个并列的方案,以“A和/或B”为例,包括A方案、或B方案、或A和B同时满足的方案。另外,各个实施例之间的技术方案可以相互结合,但是必须是以本领域普通技术人员能够实现为基础,当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在,也不在本发明要求的保护范围之内。In addition, if there are descriptions related to "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and cannot be understood as instructions or implications. Its relative importance or implicitly indicates the number of technical features indicated. Therefore, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and/or" in the full text includes three parallel schemes. Taking "A and/or B" as an example, it includes scheme A, scheme B, or schemes that meet both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on what can be achieved by a person of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that such a combination of technical solutions does not exist. , Also does not fall within the scope of protection required by the present invention.
本发明提出一种球顶。The invention proposes a dome.
参照图1和图2,在本发明一实施例中,该球顶10用于扬声器,该扬声器还包括振膜20和音圈30,球顶10结合于振膜20的一侧,音圈30结合于振膜20的另一侧。1 and 2, in an embodiment of the present invention, the dome 10 is used for a speaker, and the speaker further includes a diaphragm 20 and a voice coil 30. The dome 10 is coupled to one side of the diaphragm 20, and the voice coil 30 is coupled On the other side of the diaphragm 20.
一并参照图3,本实施例中,球顶10包括:Referring to FIG. 3 together, in this embodiment, the dome 10 includes:
球顶本体11,具有相对的第一侧面和第二侧面,所述第一侧面包括中间区域、及环设于所述中间区域的外围区域,所述外围区域用以与振膜20结合;以及The dome body 11 has a first side surface and a second side surface opposite to each other, the first side surface includes a middle area and a peripheral area surrounding the middle area, and the peripheral area is used for combining with the diaphragm 20; and
热辐射增强层12,设于所述第二侧面。The heat radiation enhancement layer 12 is arranged on the second side surface.
显然,本实施例中,所述第二侧面为球顶本体11的背向振膜20、且面向空气的侧面,故而设置在所述第二侧面的热辐射增强层12的辐射方向是朝向空气,而将热量辐射至空气中。Obviously, in this embodiment, the second side surface is the side of the dome body 11 facing away from the diaphragm 20 and facing the air. Therefore, the radiation direction of the heat radiation enhancement layer 12 provided on the second side surface is toward the air. , And radiate heat into the air.
然本设计不限于此,于其他一些实施例中,热辐射增强层12设于所述中间区域;可以理解,所述第一侧面虽然为球顶本体11的面向振膜20、且背向空气的侧面,但振膜20上对应所述中间区域的位置通常镂空,故而设置在所述中间区域的热辐射增强层12能将热量经由振膜20上的镂空位置辐射至扬声器的磁路系统,再经由磁路系统的外表面将热量散发到空气中。当然,于其他再一些实施例中,热辐射增强层12可在所述第二侧面和所述中间区域均设置,以通过两个辐射方向和辐射路径将热量散发到空气中。However, the present design is not limited to this. In some other embodiments, the heat radiation enhancement layer 12 is provided in the middle area; it can be understood that although the first side surface of the dome body 11 faces the diaphragm 20 and faces away from the air However, the position corresponding to the middle area on the diaphragm 20 is usually hollowed out, so the heat radiation enhancement layer 12 disposed in the middle area can radiate heat to the magnetic circuit system of the speaker through the hollowed out position on the diaphragm 20, The heat is dissipated into the air through the outer surface of the magnetic circuit system. Of course, in some other embodiments, the heat radiation enhancement layer 12 may be provided on both the second side surface and the middle area, so as to radiate heat into the air through two radiation directions and radiation paths.
这里需要说明的是,前面所涉及的实施例中均是基于“球顶10结合于振膜20的一侧,音圈30结合于振膜20的另一侧”的。然而在实际应用中,球顶10和音圈30还可位于振膜20的同一侧(面向磁路系统的一侧),此时,所述中间区域能经由振膜20上的镂空位置面向空气,而所述第二侧面则是背向空气、且面向磁路系统的,在此种应用中,类似地,所述第二侧面和/或所述中间区域设有热辐射增强层12,但所述第二侧面和所述中间区域各自的热辐射增强层12的辐射方向和辐射路径与前述实施例刚好相反。It should be noted here that the aforementioned embodiments are all based on "the dome 10 is coupled to one side of the diaphragm 20, and the voice coil 30 is coupled to the other side of the diaphragm 20". However, in practical applications, the dome 10 and the voice coil 30 can also be located on the same side of the diaphragm 20 (the side facing the magnetic circuit system). At this time, the middle area can face the air through the hollow position on the diaphragm 20. The second side is facing away from the air and facing the magnetic circuit system. In this application, similarly, the second side and/or the middle area is provided with a heat radiation enhancement layer 12, but The radiation direction and radiation path of the heat radiation enhancement layer 12 of the second side surface and the middle region are just opposite to those of the previous embodiment.
另外,为避免热辐射增强层12限制振膜20与球顶10之间的热传递效率,所述外围区域上通常不设置热辐射增强层12。In addition, in order to prevent the heat radiation enhancement layer 12 from limiting the heat transfer efficiency between the diaphragm 20 and the dome 10, the heat radiation enhancement layer 12 is usually not provided on the peripheral area.
可以理解,在扬声器中,主要热源是音圈30,音圈30所产生的热量会传递到振膜20,再从振膜20传递到球顶10。It can be understood that in the speaker, the main heat source is the voice coil 30, and the heat generated by the voice coil 30 will be transferred to the diaphragm 20, and then from the diaphragm 20 to the dome 10.
本发明的技术方案通过在所述第二侧面及/或所述中间区域增设热辐射增强层12,以提高球顶10的热辐射能力,从而提高球顶10的散热能力;如此,音圈30所产生的热量经由振膜20传递到球顶10后,能通过具有较大面积的球顶10的热辐射增强层12进行辐射,从而提高扬声器的散热效果。In the technical solution of the present invention, a heat radiation enhancement layer 12 is added to the second side surface and/or the middle area to increase the heat radiation capacity of the dome 10, thereby improving the heat dissipation capacity of the dome 10; thus, the voice coil 30 After the generated heat is transferred to the dome 10 via the diaphragm 20, it can be radiated through the heat radiation enhancement layer 12 of the dome 10 with a larger area, thereby improving the heat dissipation effect of the speaker.
进一步地,热辐射增强层12的厚度小于或等于20微米。可以理解,若所述热辐射增强层12的过厚,则所需的热辐射增强材料较多,成本较高,且会导致所述热辐射增强层12的重量较重,使得球顶10的重量增加过多,而影响声学性能。Further, the thickness of the heat radiation enhancement layer 12 is less than or equal to 20 microns. It can be understood that if the heat radiation enhancement layer 12 is too thick, more heat radiation enhancement materials are required, the cost is higher, and the weight of the heat radiation enhancement layer 12 will be heavier, making the dome 10 Excessive weight gain affects acoustic performance.
进一步地,热辐射增强层12的厚度大于或等于3微米。可以理解,若所述热辐射增强层12的过薄,则不利于热辐射增强层12在所述第二侧面及/或所述中间区域上的满布,容易出现一些位置未被所述热辐射增强层12所覆盖的现象,如此,会导致球顶10散热能力的提高受到影响。Further, the thickness of the heat radiation enhancement layer 12 is greater than or equal to 3 microns. It can be understood that if the heat radiation enhancement layer 12 is too thin, it will not be conducive to the spreading of the heat radiation enhancement layer 12 on the second side surface and/or the middle area, and it is easy to appear that some locations are not heated by the heat. The phenomenon covered by the radiation enhancement layer 12, in this way, will affect the improvement of the heat dissipation capacity of the dome 10.
本实施例中,所述热辐射增强层12的厚度范围为3微米~20微米,该厚度范围适中,以兼顾所述热辐射增强层12的低成本、低重量和便于满布制备;并且,该厚度较小,使得本发明球顶10相对于普通球顶10,在厚度、重量方便并无明显增加,从而使得扬声器声学性能基本无变化。In this embodiment, the thickness of the heat radiation enhancement layer 12 ranges from 3 μm to 20 μm, and the thickness range is moderate, so as to take into account the low cost, low weight, and ease of full preparation of the heat radiation enhancement layer 12; and, The thickness is small, so that the dome 10 of the present invention has no obvious increase in thickness and weight compared with the ordinary dome 10, so that the acoustic performance of the speaker is basically unchanged.
进一步地,热辐射增强层12所采用的热辐射增强材质为纳米碳、石墨烯、碳管、氮化硼、碳化硅、氮化铝中的一种或多种。可以理解,纳米碳、石墨烯、碳管、氮化硼、碳化硅、氮化铝等材质均具有较高的热辐射系数,能增强球顶10的热辐射能力,从而提高球顶10的散热效果。以所采用的热辐射增强材质为纳米碳为例,纳米碳的热辐射系数为0.98左右,而常见的铝材质的热辐射系数仅有0.55,可见,纳米碳材质具有更高的热辐射系数;另外,纳米碳是黑色的,有利于吸收存储红外光热辐射,特别地,扬声器的工作温度可能会达到100摄氏度,属于红外光热辐射,故而当球顶10的靠近磁路系统的侧面(例如图1实施例中球顶的所述中间区域)设有热辐射增强层12、且其材质为纳米碳等黑色材质时,该热辐射增强层12还能很好地对音圈30所辐射出来的热量进行吸收存储,再通过球顶10的面向空气的侧面(例如图1实施例中球顶的所述第二侧面)将这些热量快速地辐射散发到空气中。Further, the heat radiation enhancing material used in the heat radiation enhancing layer 12 is one or more of nano-carbon, graphene, carbon tube, boron nitride, silicon carbide, and aluminum nitride. It can be understood that nano-carbon, graphene, carbon tube, boron nitride, silicon carbide, aluminum nitride and other materials have high thermal emissivity, which can enhance the heat radiation ability of the dome 10, thereby improving the heat dissipation of the dome 10 Effect. Taking nano-carbon as the heat radiation enhancement material used as an example, the thermal emissivity of nano-carbon is about 0.98, while the thermal emissivity of common aluminum material is only 0.55. It can be seen that nano-carbon material has a higher thermal emissivity; In addition, nano-carbon is black, which is good for absorbing and storing infrared light and heat radiation. In particular, the working temperature of the speaker may reach 100 degrees Celsius, which belongs to infrared light and heat radiation. Therefore, when the dome 10 is close to the side of the magnetic circuit system (for example, When the middle area of the dome in the embodiment of FIG. 1 is provided with a heat radiation enhancement layer 12 and its material is black material such as nano carbon, the heat radiation enhancement layer 12 can also radiate the voice coil 30 well. The heat is absorbed and stored, and the heat is quickly radiated into the air through the air-facing side of the dome 10 (for example, the second side of the dome in the embodiment of FIG. 1).
进一步地,热辐射增强层12为颗粒层,以增大其散热表面积,从而有利于其热辐射能力的进一步增强,从而进一步提高球顶10的散热能力。本实施例中,可选地,所述热辐射增强层12是通过涂布的方式得到的,其通常是将颗粒状的热辐射增强材质(例如纳米碳)制备成涂布液,再将涂布液涂布至球顶本体11的第二侧面及/或所述中间区域,待将涂布液中的溶剂挥发掉之后,能在球顶本体11的第二侧面及/或所述中间区域上形成固化的所述热辐射增强层12。为增强涂布结合力,可选地,可先对球顶本体11的第二侧面及/或所述中间区域进行粗化,以使所述第二侧面及/或所述中间区域上成型微小的凹凸结构。Furthermore, the heat radiation enhancement layer 12 is a granular layer to increase its heat dissipation surface area, thereby facilitating further enhancement of its heat radiation capability, thereby further improving the heat dissipation capability of the dome 10. In this embodiment, optionally, the heat radiation enhancement layer 12 is obtained by coating, which is usually by preparing a granular heat radiation enhancement material (such as nano carbon) into a coating solution, and then coating The cloth liquid is applied to the second side surface of the dome body 11 and/or the middle area. After the solvent in the coating liquid is volatilized, it can be applied to the second side surface of the dome body 11 and/or the middle area. The cured heat radiation enhancement layer 12 is formed thereon. In order to enhance the bonding force of the coating, optionally, the second side surface of the dome body 11 and/or the middle area may be roughened first, so that the second side surface and/or the middle area are formed with tiny particles. The bump structure.
参照图5,在图5中,灰色的温升曲线是关于本发明的设置了纳米碳颗粒 层的球顶10的,黑色的温升曲线则是关于普通的球顶10的。从图5的温升曲线比对中,可以看出,相对于普通的球顶10,本发明的球顶10可以降低温升3.6摄氏度左右(均值),从而说明本发明的球顶10相较于普通球顶10具有更好的散热能力。Referring to Fig. 5, in Fig. 5, the gray temperature rise curve relates to the dome 10 provided with the nano-carbon particle layer of the present invention, and the black temperature rise curve relates to the ordinary dome 10 of the present invention. From the comparison of the temperature rise curves in FIG. 5, it can be seen that, compared with the ordinary dome 10, the dome 10 of the present invention can reduce the temperature rise by about 3.6 degrees Celsius (average value), which shows that the dome 10 of the present invention is compared with Compared with the ordinary dome 10, it has better heat dissipation capacity.
参照图3,在本实施例中,进一步地,球顶本体11包括发泡材质层111、及包覆发泡材质层111的导热材质层112。可以理解,发泡材质重量轻,有利于球顶10的轻质化,避免振膜20的振动性能受到影响;导热材质层112一方面有利于将音圈30所产生的热量导出至所述热辐射增强层12,以提高球顶10的散热效果,另一方面其能增强球顶10的结构强度,提高其抗冲击力。3, in this embodiment, further, the dome body 11 includes a foamed material layer 111 and a thermally conductive material layer 112 covering the foamed material layer 111. It can be understood that the foamed material is light in weight, which is beneficial to the lightening of the dome 10 and prevents the vibration performance of the diaphragm 20 from being affected; on the one hand, the thermal conductive material layer 112 is beneficial to export the heat generated by the voice coil 30 to the heat The radiation enhancement layer 12 can improve the heat dissipation effect of the dome 10, on the other hand, it can enhance the structural strength of the dome 10 and improve its impact resistance.
本实施例中,可选地,导热材质层112为金属材质层;金属材质的导热率较高,有利于将音圈30所产生的热量导出至所述热辐射增强层12,且金属材质还具有良好的强度。进一步可选地,金属材质层可以为铜材层、铝材层等,以兼顾高导热率、低成本和强刚性。In this embodiment, optionally, the thermally conductive material layer 112 is a metal material layer; the thermal conductivity of the metal material is relatively high, which is beneficial to export the heat generated by the voice coil 30 to the heat radiation enhancement layer 12, and the metal material is also Has good strength. Further optionally, the metal material layer may be a copper material layer, an aluminum material layer, etc., to take into account high thermal conductivity, low cost, and strong rigidity.
然本设计不限于此,于其他实施例中,参照图4,球顶本体11还可以为塑料层。可以理解,塑料质量较轻,成本较低,且易于成型制备。可选地,塑料层可但不限于为均具有良好的物理机械性能和耐热性能的PEN(聚萘二甲酸乙二醇酯)层或PET(聚对苯二甲酸乙二醇酯)层。However, the present design is not limited to this. In other embodiments, referring to FIG. 4, the dome body 11 may also be a plastic layer. It can be understood that plastics are lighter in weight, lower in cost, and easy to form and prepare. Optionally, the plastic layer may be, but not limited to, a PEN (polyethylene naphthalate) layer or a PET (polyethylene terephthalate) layer that both have good physical and mechanical properties and heat resistance.
本发明还提出一种扬声器,参照图1和图2,该扬声器包括振膜20和球顶10,该球顶10的具体结构参照上述实施例,由于本扬声器采用了上述所有实施例的全部技术方案,因此至少具有上述实施例的技术方案所带来的所有有益效果,在此不再一一赘述。其中,球顶10的第一侧面的外围区域与振膜20结合。The present invention also proposes a loudspeaker. Referring to Figures 1 and 2, the loudspeaker includes a diaphragm 20 and a dome 10. For the specific structure of the dome 10, refer to the above-mentioned embodiments. Because the present loudspeaker adopts all the technologies of all the above-mentioned embodiments. The solution, therefore, has at least all the beneficial effects brought about by the technical solution of the above-mentioned embodiment, and will not be repeated here. Wherein, the peripheral area of the first side surface of the dome 10 is combined with the diaphragm 20.
可选地,所述外围区域与振膜20之间通过导热粘接胶结合,以增强振膜20与球顶10之间的热传递效率,使得音圈30所产生的热量能快速地经由振膜20传递到球顶10,从而便于球顶10通过其热辐射增强层12将热量散发到空气中,提高扬声器的散热效果。Optionally, the peripheral area and the diaphragm 20 are combined with a thermally conductive adhesive to enhance the heat transfer efficiency between the diaphragm 20 and the dome 10, so that the heat generated by the voice coil 30 can quickly pass through the vibration The film 20 is transferred to the dome 10, so that the dome 10 can radiate heat into the air through the heat radiation enhancement layer 12, thereby improving the heat dissipation effect of the speaker.
然本设计不限于此,于其他一些实施例中,所述外围区域与振膜20之间还可通过普通的粘接胶结合,但该普通的粘接胶的厚度较小,例如为10微米~30微米,通常为20微米,如此,振膜20与球顶10之间也能较快地传热。However, the present design is not limited to this. In some other embodiments, the peripheral area and the diaphragm 20 can also be combined by ordinary adhesive glue, but the thickness of the ordinary adhesive glue is small, for example, 10 microns. ~30 microns, usually 20 microns, so that heat transfer between the diaphragm 20 and the dome 10 can be faster.
又或者,于其他再一些实施例中,所述外围区域与振膜20之间通过至少一圈普通的粘接胶结合,且所述外围区域与振膜20之间还至少设有一圈导热胶,以提高振膜20与球顶10之间的热传递效率。Or, in some other embodiments, the peripheral area and the diaphragm 20 are connected by at least one ring of ordinary adhesive glue, and at least one ring of thermally conductive glue is also provided between the peripheral area and the diaphragm 20 , In order to improve the heat transfer efficiency between the diaphragm 20 and the dome 10.
以上所述仅为本发明的优选实施例,并非因此限制本发明的专利范围,凡是在本发明的发明构思下,利用本发明说明书及附图内容所作的等效结构变换,或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。The above descriptions are only the preferred embodiments of the present invention, and do not limit the scope of the present invention. Under the inventive concept of the present invention, equivalent structural transformations made by using the contents of the description and drawings of the present invention, or direct/indirect use Other related technical fields are included in the scope of patent protection of the present invention.

Claims (10)

  1. 一种球顶,用于扬声器,其特征在于,所述球顶包括:A dome for loudspeakers, characterized in that the dome includes:
    球顶本体,具有相对的第一侧面和第二侧面,所述第一侧面包括中间区域、及环设于所述中间区域的外围区域,所述外围区域用以与所述扬声器的振膜结合;以及The dome body has a first side surface and a second side surface opposite to each other. The first side surface includes a middle area and a peripheral area surrounding the middle area, and the peripheral area is used to combine with the diaphragm of the speaker ;as well as
    热辐射增强层,设于所述第二侧面及/或所述中间区域。The heat radiation enhancement layer is arranged on the second side surface and/or the middle area.
  2. 如权利要求1所述的球顶,其特征在于,所述热辐射增强层的厚度小于或等于20微米。The dome of claim 1, wherein the thickness of the heat radiation enhancement layer is less than or equal to 20 microns.
  3. 如权利要求2所述的球顶,其特征在于,所述热辐射增强层的厚度大于或等于3微米。The dome of claim 2, wherein the thickness of the heat radiation enhancement layer is greater than or equal to 3 microns.
  4. 如权利要求1所述的球顶,其特征在于,所述热辐射增强层所采用的热辐射增强材质为纳米碳、石墨烯、碳管、氮化硼、碳化硅、氮化铝中的一种或多种。The dome of claim 1, wherein the heat radiation enhancing material used in the heat radiation enhancing layer is one of nano carbon, graphene, carbon tube, boron nitride, silicon carbide, and aluminum nitride. Kind or more.
  5. 如权利要求4所述的球顶,其特征在于,所述热辐射增强层为颗粒层。The dome of claim 4, wherein the heat radiation enhancement layer is a granular layer.
  6. 如权利要求1至5任一项所述的球顶,其特征在于,所述球顶本体包括发泡材质层、及包覆所述发泡材质层的导热材质层;或者,The dome according to any one of claims 1 to 5, wherein the dome body comprises a foamed material layer and a thermally conductive material layer covering the foamed material layer; or,
    所述球顶本体为塑料层。The dome body is a plastic layer.
  7. 如权利要求6所述的球顶,其特征在于,所述导热材质层为金属材质层。The dome of claim 6, wherein the thermally conductive material layer is a metal material layer.
  8. 如权利要求6所述的球顶,其特征在于,所述塑料层为PEN层或PET层。The dome of claim 6, wherein the plastic layer is a PEN layer or a PET layer.
  9. 一种扬声器,其特征在于,包括振膜、及如权利要求1至9任一项所述的球顶,所述球顶的第一侧面的外围区域与所述振膜结合。A loudspeaker, characterized by comprising a diaphragm and the dome according to any one of claims 1 to 9, and the outer area of the first side surface of the dome is combined with the diaphragm.
  10. 如权利要求9所述的扬声器,其特征在于,所述外围区域与所述振膜之间通过导热粘接胶结合。9. The loudspeaker according to claim 9, wherein the peripheral area and the diaphragm are connected by a thermally conductive adhesive.
PCT/CN2020/099550 2020-03-13 2020-06-30 Dome and loudspeaker WO2021179492A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111263280A (en) * 2020-03-13 2020-06-09 歌尔股份有限公司 Dome dome and loudspeaker
CN111954125A (en) * 2020-06-29 2020-11-17 瑞声新能源发展(常州)有限公司科教城分公司 Dome and speaker

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GB2534859A (en) * 2015-01-30 2016-08-10 B&W Group Ltd Diaphragm for a loudspeaker drive unit or a microphone
CN106412775A (en) * 2016-09-27 2017-02-15 常州阿木奇声学科技有限公司 Dome head for electrical acoustical transducer and electrical acoustical transducer
CN106686499A (en) * 2016-12-26 2017-05-17 歌尔股份有限公司 Dome applied to diaphragm
CN109257684A (en) * 2018-10-12 2019-01-22 歌尔股份有限公司 Vibrating diaphragm top dome, microphone device and electronic equipment
CN209314080U (en) * 2019-01-08 2019-08-27 深圳市信维声学科技有限公司 A kind of vibration component of loudspeaker
CN111263280A (en) * 2020-03-13 2020-06-09 歌尔股份有限公司 Dome dome and loudspeaker

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Publication number Priority date Publication date Assignee Title
GB2534859A (en) * 2015-01-30 2016-08-10 B&W Group Ltd Diaphragm for a loudspeaker drive unit or a microphone
CN106412775A (en) * 2016-09-27 2017-02-15 常州阿木奇声学科技有限公司 Dome head for electrical acoustical transducer and electrical acoustical transducer
CN106686499A (en) * 2016-12-26 2017-05-17 歌尔股份有限公司 Dome applied to diaphragm
CN109257684A (en) * 2018-10-12 2019-01-22 歌尔股份有限公司 Vibrating diaphragm top dome, microphone device and electronic equipment
CN209314080U (en) * 2019-01-08 2019-08-27 深圳市信维声学科技有限公司 A kind of vibration component of loudspeaker
CN111263280A (en) * 2020-03-13 2020-06-09 歌尔股份有限公司 Dome dome and loudspeaker

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