WO2017206065A1 - 平面振膜单体的改良结构 - Google Patents

平面振膜单体的改良结构 Download PDF

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Publication number
WO2017206065A1
WO2017206065A1 PCT/CN2016/084127 CN2016084127W WO2017206065A1 WO 2017206065 A1 WO2017206065 A1 WO 2017206065A1 CN 2016084127 W CN2016084127 W CN 2016084127W WO 2017206065 A1 WO2017206065 A1 WO 2017206065A1
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WIPO (PCT)
Prior art keywords
coil
film layer
improved structure
planar diaphragm
center line
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PCT/CN2016/084127
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English (en)
French (fr)
Inventor
邓克忠
Original Assignee
邓克忠
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Publication date
Application filed by 邓克忠 filed Critical 邓克忠
Priority to PCT/CN2016/084127 priority Critical patent/WO2017206065A1/zh
Priority to DE212016000277.5U priority patent/DE212016000277U1/de
Priority to JP2018600157U priority patent/JP3221534U/ja
Priority to US16/304,963 priority patent/US10582302B2/en
Publication of WO2017206065A1 publication Critical patent/WO2017206065A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction
    • H04R9/047—Construction in which the windings of the moving coil lay in the same plane
    • 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
    • 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

Definitions

  • the present invention relates to a vibration mode structure, and more particularly to an improved structure of a planar diaphragm unit which can reduce the phenomenon of pot splitting.
  • the types of sounding devices can be divided into many types, such as moving coil speakers, piezoelectric speakers, ceramic piezoelectric speakers and paper speakers.
  • the most common ones are traditional moving coil speakers.
  • the structure of the moving coil type is mainly to wrap an enamel coil around the outer circumference of the circular column to form a voice coil, and then glue one end of the voice coil to one side of a diaphragm and then place it on one side of the magnet.
  • the moving coil type horn To form a single body of the moving coil type horn.
  • the corresponding audio current is passed through the enamel coil, so that the magnetic field of the coil is transmitted through the electromagnetic induction to cause the diaphragm to vibrate, thereby vibrating the air and generating sound.
  • FIG. 1A A prior art monomer structure is shown in Figure 1A.
  • only a single coil 92 is generally provided on the diaphragm 91 of the conventional unitary structure 9.
  • the direction of current flow at the same distance from the center line 95 on both sides of the center line 95 of the coil 92 may be different, so that the basin splitting is likely to occur.
  • the current of the coil 92 at the point a of the right portion of the center line 95 flows downward in the drawing, the coil 92 is between the other side and the center line 95 and the point a. The current at the point a' from the same point will flow upward in the figure.
  • FIG. 1B is a side view of the diaphragm 91, the arrows indicating the direction of vibration of the diaphragm at microscopic points.
  • the vibration direction of the diaphragm 91 at the microscopic point that is, the point a and the point a' is caused.
  • the existing monomer structure 9 is prone to the phenomenon of pot splitting, and the sound quality of the monomer is distorted.
  • an object of the present invention is to provide an improved structure of a planar diaphragm unit in which the coils on the diaphragm structure are arranged such that the coils are at the same distance from the center line on both sides of the center line.
  • the currents at the locations are in the same direction, thereby reducing the occurrence of basin splitting.
  • the present invention provides an improved structure of a planar diaphragm unit, comprising: a film layer having a first surface and a second surface, and the film layers are opposed to each other with respect to a center line thereof a first side and a second side; a first coil disposed on the first side of the first side of the film layer, and the first coil has a first contact point; a second coil, The second side of the film layer is disposed on the first side of the film layer, and the second coil is electrically connected to the first coil through a first connection point; a third coil is disposed on the film layer The second side of the first surface, and the third coil is electrically connected to the second coil through a second connection point; and a fourth coil disposed on the second surface of the film layer The second coil is electrically connected to the third coil through a third connection point, and the fourth coil has a second contact point; wherein the first coil and the third coil Is configured such that the current directions are the same at the same distance from the
  • the first coil and the third coil have a symmetric configuration with respect to the center line
  • the second coil and the fourth coil have a symmetric configuration with respect to the center line
  • the second coil is overlapped with the first coil
  • the fourth coil is overlapped with the third coil
  • the second coil overlaps with the first coil.
  • a portion of the current direction in which the fourth coil overlaps the third coil is the same.
  • the second coil and the fourth coil are disposed on the second surface of the film layer in a minimum number of turns.
  • 1A is a schematic view of a conventional monomer structure
  • Figure 1B is a side view of a conventional unit structure
  • FIG. 2A is a plan view showing a first side of a modified structure of a planar diaphragm unit according to an embodiment of the present invention
  • 2B is a plan view showing a second side of a modified structure of a planar diaphragm unit according to an embodiment of the present invention
  • FIG 3 is a schematic plan view showing a current flow direction of a coil in an improved structure of a planar diaphragm unit according to an embodiment of the present invention.
  • Fig. 2A is a plan view showing a first side of a modified structure of the planar diaphragm unit of the present invention
  • Fig. 2B is a plan view showing a second side of the improved structure of the plane diaphragm unit of the present invention.
  • the improved structure of the planar diaphragm unit of the present invention mainly comprises a film layer 10, a first coil 31, a second coil 32, a third coil 33 and a fourth coil 34.
  • FIGS. 2A and 2B an improved structure of the planar diaphragm unit of the present invention will be described with reference to FIGS. 2A and 2B.
  • the film layer 10 is a main structure of a single diaphragm having a first face 11 and a second face 12.
  • first face 11 of the film layer 10 is defined as a first side 111 and a second side 112 opposite to each other with reference to a center line A of the film layer 10
  • second face 12 of the film layer 10 is defined as a first side 121 and a second side 122 that are opposite each other.
  • the film layer 10 has a quadrangular shape, and the position of the center line A is an intermediate point penetrating the two sides of the quadrilateral; however, the shape of the film layer 10 and the position of the center line are not limited thereto, and the film layer is not limited thereto. 10 can be any shape suitable as a diaphragm, and the center line can be defined at other locations where the film layer is divided into two symmetrical portions.
  • the first coil 31 is a first side 111 disposed on the first face 11 of the film layer 10, and the first coil has a first contact point 201.
  • the first contact point 201 is disposed above the first side 111 of the first side 11 of the film layer 10.
  • the first connection point 211 passing through the middle of the first side 111 of the first surface 11 of the film layer 10 passes through the film layer 10 and is disposed on the film layer 10.
  • the second coil 32 of the first side 121 of the second surface 12 is electrically connected.
  • the second coil 32 is substantially overlapped with the first coil 31 on the first side 121 of the second face 12 of the film layer 10 and disposed in a minimum number of turns.
  • the second connection point 212 passing through the second surface 12 passes through the film layer 10 and is disposed on the film.
  • the third coil 33 on the second side 112 of the first face 11 of the layer 10 is electrically connected.
  • the third coil 33 is on the second side 112 of the first side 11 of the film layer 10 from the second connection point 212 to be symmetric with the first coil 31 with respect to the center line A.
  • the third coil 33 and the first coil 11 have a shape and a number of turns that are symmetrical with respect to the intermediate line A.
  • the third coil 33 is electrically connected to the fourth coil disposed on the second side 122 of the second surface 12 of the film layer through the film layer 10 through the third connection point 213 at the lower middle of the second side 112.
  • the fourth coil 34 is on the second side 122 of the second side 12 of the film layer 10 It is substantially overlapped with the third coil 33 and arranged in a minimum number of turns. Furthermore, the fourth coil 34 and the second coil 32 have a configuration that is symmetrical with respect to the intermediate line A on the second face 12 of the film layer 10.
  • FIG. Fig. 3 is a view showing the direction of current flow of the coil in the improved structure of the planar diaphragm unit of the present invention. As shown in FIG. 3, if the current flows downward from the first contact point 201 at a position close to the center line along the first coil 31, the current flow direction at the position of the point b of the first coil 31 will be a picture. The upper part of 3 flows.
  • the flow direction of the current is also at the position of the point b. It also flows upwards in Figure 3.
  • the current directions of the first coil 31 and the third coil 33 at the same distance from the center line A respectively are the same, and the second coil 32 and the fourth coil 34 are at the center line.
  • the direction of the current at the same distance of A will be the same. In this way, the vibration direction of the planar diaphragm unit in the microscopic view can be kept consistent, thereby achieving the purpose of reducing the occurrence of the basin splitting in the existing monomer structure, and improving the high-pitched performance of the unit.
  • the second coil 32 and the fourth coil 34 of the second surface 12 of the thin film layer 10 are arranged in a minimum number of turns, and the second coil 32 and the fourth coil 34 are respectively connected to the first coil of the first surface 11
  • the overlap with the third coil 33 is such that the interference of the second coil 32 and the fourth coil 34 with respect to the first coil 31 and the third coil 33 is minimized, further reducing the probability of occurrence of a pot splitting situation.
  • FIG. 2A and FIG. 2B of the present invention is only one example of the present invention, and any coil configuration that meets the conditions limited in the scope of the patent application belongs to the scope protected by the present invention. Among them.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Reciprocating Pumps (AREA)

Abstract

一种平面振膜单体的改良结构，包括：一薄膜层（10）、一第一线圈（31）、一第二线圈（32）、一第三线圈（33）以及一第四线圈（34）。所述的第一线圈（31）是设置在薄膜层（10）的第一面（11）上的第一侧（111）。所述的第二线圈（32）是设置在薄膜层（10）的第二面（12）上的第一侧（121），并且与第一线圈（31）电性连接。所述的第三线圈（33）是设置在薄膜层（10）的第一面（11）上的第二侧（112），并且与第二线圈（32）电性连接。所述的第四线圈（34）是设置在薄膜层（10）的第二面（12）上的第二侧（122），并且与第三线圈（33）电性连接。其中，第一线圈（31）与第三线圈（33）是被配置为在与中心线（A）距离相同处的电流方向相同，且该第二线圈（32）与该第四线圈（34）是被配置为在与该中心线（A）距离相同处的电流方向相同。

Description

平面振膜单体的改良结构 技术领域
本发明是关于一种振模结构，特别是关于可以减少盆分裂现象的平面振膜单体的改良结构。
背景技术
根据结构以及发声的原理不同，发声装置的种类可以分为动圈式喇叭、压电喇叭、陶瓷压电喇叭以及纸喇叭等许多种类，其中，最常见即为传统的动圈式喇叭。动圈式喇叭的结构，主要是将一漆包线圈缠绕于圆型管柱的外周围构成一音圈后，再将音圈的一端胶合于一振膜的一侧后置放于磁铁的一侧，以形成动圈式喇叭的单体。在利用此种单体发声时，是使对应的音频电流通过漆包线圈，使得线圈的磁场透过电磁感应发生变化而带动振膜振动，借此振动空气而发声。
图1A中显示了一种现有的单体结构。如图1A所示，现有的单体结构9的振膜91上一般仅设置一个单一的线圈92。在这种现有的单体结构9上将音频电流通过线圈92时，在线圈92中心线95两侧与中心线95距离相同处的电流流动方向会不相同，因此容易产生盆分裂的情形。进一步来说，如图1A所示，若线圈92在中心线95右侧部分的点a位置的电流是往图中的下方流动，则线圈92在另一侧与中心线95与点a之间距离相同处的点a’位置的电流会往图中的上方方向流动。图1B为振膜91的侧视图，图中的箭头标示了振膜在微观的点上的振动方向。如图1B所示，由于这种现有的线圈配置使得电流在点a与点a’的流动方向相反，因而会导致振膜91在微观的点，即点a与点a’上的振动方向不相同，进而造成现有的单体结构9容易发生盆分裂的现象，并且造成单体的音质失真。
发明内容
基于上述理由，本发明的目的在于提供一种平面振膜单体的改良结构，其是将振膜结构上的线圈配置，使得线圈在中心线两侧与中心线距离相同的 位置处的电流方向相同，借此减少盆分裂发生的情形。
为达成前述目的，本发明提供一种平面振膜单体的改良结构，包括：一薄膜层，具有一第一面以及一第二面，且该薄膜层以其一中心线为基准具有彼此相对的一第一侧以及一第二侧；一第一线圈，设置在该薄膜层的该第一面上的该第一侧，且该第一线圈具有一第一接触点；一第二线圈，设置在该薄膜层的该第二面上的该第一侧，且该第二线圈是透过一第一连接点与该第一线圈电性连接；一第三线圈，设置在该薄膜层的该第一面上的该第二侧，且该第三线圈是透过一第二连接点与该第二线圈电性连接；以及一第四线圈，设置在该薄膜层的该第二面上的该第二侧，该第四线圈是透过一第三连接点与该第三线圈电性连接，且该第四线圈具有一第二接触点；其中，该第一线圈与该第三线圈是被配置为两者在与中心线距离相同处的电流方向相同，且该第二线圈与该第四线圈是被配置为两者在与该中心线距离相同处的电流方向相同。
根据本发明的一实施例，该第一线圈与该第三线圈相对于该中心线具有对称的配置，且该第二线圈与该第四线圈相对于该中心线具有对称的配置。
根据本发明的一实施例，该第二线圈是与该第一线圈重迭，该第四线圈是与该第三线圈重迭，该第二线圈与该第一线圈重迭的部分电流方向相同，且该第四线圈与该第三线圈重迭的部分电流方向相同。此外，该第二线圈与该第四线圈是以最小绕圈数的方式设置于该薄膜层的第二面上。
附图说明
图1A为现有单体结构的示意图；
图1B为现有单体结构的侧视图；
图2A为显示根据本发明一实施例的平面振膜单体的改良结构的第一面的平面示意图；
图2B为显示根据本发明一实施例的平面振膜单体的改良结构的第二面的平面示意图；以及
图3为显示根据本发明一实施例的平面振膜单体的改良结构中线圈的电流流动方向的平面示意图。
符号说明：
10 薄膜层
11 第一面
111 第一侧
112 第二侧
12 第二面
121 第一侧
122 第二侧
201 第一接触点
202 第二接触点
211 第一连接点
212 第二连接点
213 第三连接点
31 第一线圈
32 第二线圈
33 第三线圈
34 第四线圈
9 单体结构
91 振膜
92 线圈
95 中心线
A 中心线
a、a’、b、b’ 点
具体实施方式
以下配合图式及组件符号对本发明的实施方式做更详细的说明，俾使熟习该项技艺者在研读本说明书后能据以实施。
图2A为显示本发明的平面振膜单体的改良结构的第一面的平面图；图2B为显示本发明的平面振膜单体的改良结构的第二面的平面图。如图2A以 及图2B所示，本发明的平面振膜单体的改良结构主要是包括了一薄膜层10、一第一线圈31、一第二线圈32、一第三线圈33以及一第四线圈34。以下，将同时参照图2A以及图2B针对本发明的平面振膜单体的改良结构进行说明。
薄膜层10为单体振膜的主要结构，其具有一第一面11以及一第二面12。为了方便说明本发明中的线圈配置，以下是以薄膜层10的一中心线A为基准，将薄膜层10的第一面11定义为彼此相对的第一侧111与第二侧112，并且将薄膜层10的第二面12定义为彼此相对的第一侧121以及第二侧122。在此实施例中，薄膜层10是具有四边形的形状，且中心线A的位置是贯穿于四边形其中两边的中间点；然而，薄膜层10的形状与中心线的位置并不限于此，薄膜层10可以为任何适合作为振膜的形状，且中心线可以被定义在其他将薄膜层分为两个对称部分的位置。
如图2A所示，第一线圈31是设置在薄膜层10的第一面11上的第一侧111，且第一线圈具有一第一接触点201。在此实施例中，第一接触点201是设置在薄膜层10第一面11的第一侧111的上方。第一线圈31是从第一接触点201开始环绕数圈后，透过薄膜层10第一面11的第一侧111中间下方的第一连接点211穿过薄膜层10与设置在薄膜层10第二面12第一侧121的第二线圈32电性连接。
如图2B所示，第二线圈32在薄膜层10第二面12第一侧121上是以与第一线圈31大致重迭并且以最小绕圈数的方式配置。在本实施例中，第二线圈32是在薄膜层10的第二面12绕了一圈半之后，透过位于第二面12上方的第二连接点212穿过薄膜层10与设置在薄膜层10第一面11第二侧112上的第三线圈33电性连接。
请再次参照图2A，在此实施例中，第三线圈33在薄膜层10第一面11第二侧112上是从第二连接点212开始，以相对于中心线A与第一线圈31对称的方式配置；换言之，第三线圈33与第一线圈11具有相对于中间线A对称的形状与圈数。上述的第三线圈33在第二侧112中间下方处透过第三连接点213穿过薄膜层10与设置在薄膜层第二面12第二侧122的第四线圈电性连接。
再次参照图2B，第四线圈34在薄膜层10第二面12第二侧122上是以 与第三线圈33大致重迭并且以最小绕圈数的方式配置。此外，第四线圈34与第二线圈32在薄膜层10的第二面12上具有相对于中间线A对称的配置。
透过上述线圈配置，本发明的平面振膜单体的改良结构可以降低现有单体结构中盆分裂情形发生的机率。以下，将参照图3来说明本发明的改良结构降低盆分裂情形发生的原理。图3为显示本发明的平面振膜单体的改良结构中线圈的电流流动方向的示意图。如图3所示，若电流从第一接触点201开始在靠近中心线的位置沿着第一线圈31向下流动，则在第一线圈31点b的位置处的电流流动方向会是往图3中的上方流动。当电流经由第一线圈31、第二线圈32流动到第三线圈33中相对于中间线A与第一线圈31的点b对称的点b’的位置，电流的流动方向也与在点b位置时同样是往图3中的上方流动。换言之，透过本发明的线圈配置，第一线圈31与第三线圈33在两者分别与中心线A距离相同处的电流方向会相同，且第二线圈32与第四线圈34在与中心线A距离相同处的电流方向也会相同。如此一来，平面振膜单体在微观点上的振动方向可以保持一致，借此达到减少现有单体结构中的盆分裂情形发生的目的，并且提高单体的高音性能。
此外，由于薄膜层10第二面12的第二线圈32与第四线圈34是以最小绕圈数的方式配置，且第二线圈32与第四线圈34分别与第一面11的第一线圈31与第三线圈33重迭，使得第二线圈32、第四线圈34对于第一线圈31、第三线圈33的干扰得以降到最小，进一步减少盆分裂情形发生的机率。
值得一提的是，本发明图2A与图2B中所显示的线圈配置仅为本发明的其中一种范例，任何符合申请专利范围中所限制的条件的线圈配置都属于本发明所保护的范畴之中。
由以上实施例可知，本发明所提供的平面振膜单体的改良结构确具产业上的利用价值，惟以上的叙述仅为本发明的较佳实施例说明，凡精于此项技艺者可依据上述的说明而作其它种种的改良，惟这些改变仍属于本发明的精神及以下所界定的专利范围中。

Claims (4)

  1. 一种平面振膜单体的改良结构，其特征在于，包括：
    一薄膜层，具有一第一面以及一第二面，且该薄膜层以其一中心线为基准具有彼此相对的一第一侧以及一第二侧；
    一第一线圈，设置在该薄膜层的该第一面上的该第一侧，且该第一线圈具有一第一接触点；
    一第二线圈，设置在该薄膜层的该第二面上的该第一侧，且该第二线圈是透过一第一连接点与该第一线圈电性连接；
    一第三线圈，设置在该薄膜层的该第一面上的该第二侧，且该第三线圈是透过一第二连接点与该第二线圈电性连接；以及
    一第四线圈，设置在该薄膜层的该第二面上的该第二侧，该第四线圈是透过一第三连接点与该第三线圈电性连接，且该第四线圈具有一第二接触点；
    其中，该第一线圈与该第三线圈是被配置为两者在与该中心线距离相同处的电流方向相同，且该第二线圈与该第四线圈是被配置为两者在与该中心线距离相同处的电流方向相同。
  2. 根据权利要求1所述的平面振膜单体的改良结构，其特征在于，该第一线圈与该第三线圈相对于该中心线具有对称的配置，且该第二线圈与该第四线圈相对于该中心线具有对称的配置。
  3. 根据权利要求1所述的平面振膜单体的改良结构，其特征在于，该第二线圈是与该第一线圈重迭，该第四线圈是与该第三线圈重迭，该第二线圈与该第一线圈重迭的部分电流方向相同，且该第四线圈与该第三线圈重迭的部分电流方向相同。
  4. 根据权利要求1至3中任一项所述的平面振膜单体的改良结构，其特征在于，该第二线圈与该第四线圈是以最小绕圈数的方式设置于该薄膜层的该第二面上。
PCT/CN2016/084127 2016-05-31 2016-05-31 平面振膜单体的改良结构 WO2017206065A1 (zh)

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PCT/CN2016/084127 WO2017206065A1 (zh) 2016-05-31 2016-05-31 平面振膜单体的改良结构
DE212016000277.5U DE212016000277U1 (de) 2016-05-31 2016-05-31 Planarer Membrantreiber mit einer verbesserten Struktur
JP2018600157U JP3221534U (ja) 2016-05-31 2016-05-31 改良された構造を有する平面振動膜単体
US16/304,963 US10582302B2 (en) 2016-05-31 2016-05-31 Planar diaphragm driver having an improved structure

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CN201267010Y (zh) * 2008-07-17 2009-07-01 吴伟东 励磁式径向磁路扬声器
CN203933933U (zh) * 2014-01-04 2014-11-05 海菲曼（天津）科技有限公司 一种平板扬声器复合振膜及具有该振膜的耳机扬声器
US20160014518A1 (en) * 2014-07-08 2016-01-14 Shih-Tung Liu Speaker and diaphragm thereof
CN105282663A (zh) * 2015-11-23 2016-01-27 许扬 一种平面动圈复合式振膜组件

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JP2007020024A (ja) * 2005-07-11 2007-01-25 Yamaha Corp リニアモータ式スピーカ
CN201234340Y (zh) * 2008-07-08 2009-05-06 李楠 具有多音圈扬声器以及扩声装置
CN201267010Y (zh) * 2008-07-17 2009-07-01 吴伟东 励磁式径向磁路扬声器
CN203933933U (zh) * 2014-01-04 2014-11-05 海菲曼（天津）科技有限公司 一种平板扬声器复合振膜及具有该振膜的耳机扬声器
US20160014518A1 (en) * 2014-07-08 2016-01-14 Shih-Tung Liu Speaker and diaphragm thereof
CN105282663A (zh) * 2015-11-23 2016-01-27 许扬 一种平面动圈复合式振膜组件

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US20200015015A1 (en) 2020-01-09

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