WO2018098866A1 - 三单元球形音箱 - Google Patents

三单元球形音箱 Download PDF

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Publication number
WO2018098866A1
WO2018098866A1 PCT/CN2016/111466 CN2016111466W WO2018098866A1 WO 2018098866 A1 WO2018098866 A1 WO 2018098866A1 CN 2016111466 W CN2016111466 W CN 2016111466W WO 2018098866 A1 WO2018098866 A1 WO 2018098866A1
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Prior art keywords
bass
housing
sound
midrange
speaker
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PCT/CN2016/111466
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English (en)
French (fr)
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张思源
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张思源
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Publication of WO2018098866A1 publication Critical patent/WO2018098866A1/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/026—Supports for loudspeaker casings

Definitions

  • the invention relates to a sound box, in particular to a three-unit spherical sound box.
  • the existing speakers are generally composed of rectangular or square boxes.
  • the speakers inside the box generate sound waves around them.
  • the sound waves reflect in the rectangular or square box and transmit some of the reflected sound waves to the outside of the box.
  • the generated sound waves are mixed to produce mixed sound waves, so the sound produced by the existing speakers is highly distorted.
  • the object of the present invention is to solve the deficiencies of the prior art and to provide a three-unit spherical speaker.
  • a three-unit spherical speaker that includes:
  • the bass generator includes a subwoofer connected to the external bass crossover and a bass outer casing with a spherical cavity.
  • the front end of the bass casing has a bass outlet, and the front of the subwoofer corresponds to the bass outlet and is connected.
  • Fixed, the tail of the woofer is located in the inner cavity of the bass casing, and the inner wall of the inner cavity of the bass casing is coated with a sound absorbing layer;
  • the midrange generator includes a midrange speaker connected to the external midrange crossover, and a midrange housing with a spherical inner cavity.
  • the front end of the midrange housing is provided with a midrange exit and the front of the midrange speaker.
  • the tail of the midrange speaker is located in the inner cavity of the middle sound casing, and the inner wall of the inner cavity of the middle sound casing is coated with the sound absorbing layer;
  • the treble generator includes a horn, a tweeter coupled to the external treble crossover, a cylindrical housing open at both ends, and a spherical heat sink, the tweeter is located in the cylindrical housing, and the front end of the tweeter is horned Fixed connection, the rear end is close to the spherical heat sink;
  • the midrange housing is fixed to the top surface of the bass enclosure, and the cylindrical housing is fixed to the top surface of the midrange housing.
  • a preferred solution is that the inner cavity of the bass casing is filled with wool felt or silk, and the wool felt or silk is closely attached to the inner wall of the inner cavity of the bass casing; the inner cavity of the middle casing is filled with wool felt or silk, and the wool felt or silk is closely attached.
  • the sound absorbing layer is a butyl cyanide rubber layer.
  • a preferred solution is a hollow sphere made of 304 stainless steel, respectively, of the bass outer casing and the middle sound outer casing.
  • the spherical heat sink is a solid sphere made of 304 stainless steel.
  • the three-unit spherical speaker further comprises a connecting tube and a plurality of wires, and the rear end surface of the bass outer casing is provided with a wire hole, one end of the connecting pipe is fixedly connected with the top surface of the bass outer casing, and the other end is fixed with the bottom surface of the middle sound casing.
  • One end of one wire is connected to the external bass crossover, the other end is connected to the subwoofer through the wire hole; the other wire is connected to the external mid-range crossover at one end and the wire hole through the other end in turn, the bass outer casing
  • the cavity and the connecting tube are connected to the midrange speaker.
  • the present invention has the beneficial effects that the bass is reflected in the inner cavity of the bass casing and cancels each other, preventing the bass in the inner cavity of the bass casing from being transmitted to the front end surface of the bass casing, thereby preventing the bass in the inner cavity of the bass casing.
  • the midranges are reflected in the inner cavity of the midrange and cancel each other out, preventing the midrange in the inner cavity of the midrange from being transmitted to the front end of the midrange Prevents the midrange in the inner cavity of the midrange casing from interfering with the midrange at the midrange exit, thereby reducing the distortion of the midrange and achieving a high fidelity midrange effect;
  • the bass generator is used to restore the bass, the midrange
  • the generator restores the midrange and the treble generator restores the treble, so the sound that can be emitted by the present invention can be restored to true bass, midrange and treble.
  • Figure 1 is a schematic illustration of the invention.
  • a three-unit spherical speaker includes a bass generator 10, a midrange generator 20, and a tweeter 30.
  • the woofer generator 10 includes a woofer 101 connected to an external bass divider, and a bass housing 102 having a spherical inner cavity.
  • the front end surface of the bass housing 102 is provided with a bass outlet 103.
  • the front portion of the woofer 101 corresponds to the bass outlet 103 and is fixedly connected.
  • the tail of the woofer 101 is located in the bass housing inner cavity 104, and the inner wall of the bass housing inner cavity 104 is coated with the sound absorbing layer 105. As shown in FIG.
  • the arrow in the inner casing 104 of the bass housing indicates the direction of the bass transmission, the bass generated by the woofer 101 spreads around, a part of the bass diffuses outward along the bass outlet 103, and the other part is inside the bass housing 104. Diffusion, the bass is reflected in the bass housing inner cavity 104 and cancels each other, preventing the bass in the bass housing inner cavity 104 from being transmitted to the front end surface of the bass housing 102, thereby preventing the bass to bass outlet in the bass housing inner cavity 104.
  • the bass at 103 produces interference, which reduces the distortion of the bass and achieves high fidelity bass.
  • the muffler layer 105 in the bass housing inner cavity 104 eliminates the bass in the bass housing inner cavity 104 while reducing the vibration of the bass housing 102.
  • the midrange generator 20 includes a midrange speaker 201 connected to an external midrange frequency divider, and a midrange housing 202 having a spherical inner cavity, the front end face of the middle acoustic housing 202.
  • a mid-range outlet 203 is provided.
  • the front portion of the mid-range speaker 201 corresponds to the middle sound outlet 203 and is fixedly connected.
  • the tail portion of the mid-range speaker 201 is located in the inner cavity 204 of the middle sound casing, and the inner wall of the inner cavity 204 of the middle sound casing is coated with Silencer layer 105. As shown in Fig.
  • the arrow in the inner cavity 204 of the middle of the figure indicates the direction of the middle sound propagation, the bass generated by the middle speaker 201 spreads around, a part of the middle sound spreads out along the middle exit 203, and the other part is in the middle.
  • the inner cavity 204 of the sound casing is diffused, and the middle sound is reflected in the inner cavity 204 of the middle sound casing and cancels each other, thereby preventing the middle sound in the inner cavity 204 of the middle sound casing from being transmitted to the front end surface of the middle sound casing 202, thereby preventing the middle sound.
  • the midrange within the midrange cavity 204 interferes with the midrange at the midrange exit 203, thereby reducing the distortion of the midrange and achieving a high fidelity midrange effect.
  • the muffler layer 105 in the inner casing 204 of the mid-range housing eliminates the midrange in the inner cavity 204 of the mid-range casing and at the same time reduces the vibration generated by the mid-range to the mid-range casing 202.
  • the treble generator 30 As shown in FIG. 1, the treble generator 30; the treble generator 30 includes a horn 301, a tweeter 302 connected to an external treble frequency divider, a cylindrical casing 303 open at both ends, and a spherical heat sink 304, a tweeter 302. Located in the cylindrical casing 303, the front end of the tweeter 302 is fixedly connected to the horn 301, and the rear end is in close contact with the spherical heat sink 304.
  • the film of the tweeter 302 is a cobalt magnetic dome aluminum film, and the horn 301 acts as an energy booster for the high sound generated by the tweeter 302, and the spherical heat sink 304 acts as a heat sink for the cobalt magnet at the rear end of the tweeter 302.
  • the external CD player is connected to the bass divider, midrange divider and treble divider through the audio amplifier; the bass divider, the midrange divider and the treble divider will respectively
  • the audio is correspondingly divided into bass, midrange and treble, and the woofer 101 generates a fidelity bass through the bass casing 102; the midrange speaker 201 generates a fidelity midrange through the midrange casing 202;
  • the high-pitched bass, the fidelity mid-range, and the high-pitched tone produced by the tweeter 302 enable the sound produced by the three-unit spherical speaker to restore the original sound.
  • the midrange housing 202 is fixed to the top surface of the bass housing 102, and the cylindrical housing 303 is fixed to the top surface of the midrange housing 202.
  • the bass housing inner cavity 104 is filled with wool felt or silk, the wool felt or silk is closely attached to the sound absorbing layer 105 of the inner wall of the bass housing inner cavity 104; the middle sound chamber inner cavity 204 is filled with wool felt or The silk, wool felt or silk is placed against the sound absorbing layer 105 on the inner wall of the inner cavity 204 of the midrange housing.
  • the sound absorbing layer 105 is a butyl cyanide rubber layer.
  • the bass outer casing 102 and the middle sound casing 202 are respectively hollow spheres made of 304 stainless steel, the radius of the middle sound casing 202 is not greater than the radius of the bass outer casing 102, and the radius of the bass outer casing 102 is the radius of the middle sound casing 202. 2 to 10 times.
  • the spherical heat sink 304 is a solid sphere made of 304 stainless steel, and the solid sphere made of 304 stainless steel has good heat dissipation effect and beautiful appearance.
  • the hollow sphere made of 304 stainless steel is durable and reliable, and can be recycled and environmentally friendly.
  • the three-unit spherical speaker further includes a connecting tube 107 and a plurality of wires.
  • the rear end surface of the bass housing 102 is provided with a wire hole.
  • One end of the connecting tube 107 is fixedly connected to the top surface of the bass housing 102, and the other end is connected to the middle.
  • the bottom surface of the outer casing 202 is fixed through; one end of one wire is connected to the external bass crossover, and the other end is connected to the woofer 101 through the wire hole; one end of the other wire is connected to the external mid-range crossover, and the other end is in turn Through the wire hole, the cavity of the bass housing 102 and the connecting tube 107 are connected to the midrange speaker 201, so that the three-unit spherical speaker looks beautiful.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

一种三单元球形音箱，包括低音发生器（10），中音发生器（20）和高音发生器（30）；低音发生器（10）包括与外部低音分频器连接的低音扬声器（101），以及内腔呈球形的低音外壳（102），低音外壳（102）的前端面设有低音出口（103），低音外壳内腔（104）的内壁涂有消音层（105）；中音发生器（20）包括中音扬声器（201），以及内腔呈球形的中音外壳（202），中音外壳（202）的前端面设有中音出口（203），中音外壳内腔（204）的内壁涂有消音层（105）；高音发生器（30）包括号角（301），与外部高音分频器连接的高音扬声器（302），筒状壳体（303）和球形散热器（304），高音扬声器（302）位于筒状壳体（303）内，且前端与号角（301）固定连接，后端紧贴球形散热器（304）；中音外壳（202）固定于低音外壳（102）的顶部表面，筒状壳体（303）固定于中音外壳（202）的顶部表面。它的优点是发出的声音保真度高，声音还原成原有的声音。

Description

三单元球形音箱
技术领域
本发明涉及音箱，尤其是一种三单元球形音箱。
背景技术
现有的音箱一般由长方形或者方形的箱体组成，箱体内扬声器向四周产生声波，声波在长方形或者方形的箱体内反射并将部分反射的声波传至箱体外，当这些反射的声波与扬声器产生的声波混后产生混合声波，因此现有的音箱产生的声音的失真度很大。
发明内容
本发明的目的是解决现有技术的不足，提供一种三单元球形音箱。
本发明的一种技术方案：
一种三单元球形音箱，包括：
低音发生器，低音发生器包括与外部低音分频器连接的低音扬声器，以及内腔呈球形的低音外壳，低音外壳的前端面设有低音出口，低音扬声器的前部与低音出口相对应并连接固定，低音扬声器的尾部位于低音外壳内腔内，低音外壳内腔的内壁涂有消音层；
中音发生器，中音发生器包括与外部中音分频器连接的中音扬声器，以及内腔呈球形的中音外壳，中音外壳的前端面设有中音出口，中音扬声器的前部与中音出口相对应并连接固定，中音扬声器的尾部位于中音外壳内腔内，中音外壳内腔的内壁涂有消音层；
高音发生器；高音发生器包括号角，与外部高音分频器连接的高音扬声器，两端开口的筒状壳体，以及球形散热器，高音扬声器位于筒状壳体内，且高音扬声器的前端与号角固定连接，后端紧贴球形散热器；
中音外壳固定于低音外壳的顶部表面，筒状壳体固定于中音外壳的顶部表面。
一种优选方案是低音外壳内腔内填充有羊毛毡或蚕丝，羊毛毡或蚕丝紧贴低音外壳内腔内壁的消音层；中音外壳内腔填充有羊毛毡或蚕丝，羊毛毡或蚕丝紧贴中音外壳内腔内壁的消音层。
一种优选方案是消音层为丁氰橡胶层。
一种优选方案是低音外壳和中音外壳分别为304不锈钢制成的空心球体。
一种优选方案是球形散热器为304不锈钢制成的实心球体。
一种优选方案是三单元球形音箱还包括连接管和若干根导线，低音外壳后端面设有导线孔，连接管的一端与低音外壳的顶部表面贯穿固定，另一端与中音外壳底部表面贯穿固定；一根导线的一端与外部低音分频器连接，另一端穿过导线孔与低音扬声器连接；另一根导线的一端与外部中音分频器连接，另一端依次穿过导线孔，低音外壳空腔以及连接管后与中音扬声器连接。
综合上述技术方案，本发明的有益效果：低音在低音外壳内腔内反射并相互抵消，防止了低音外壳内腔内的低音传至低音外壳的前端面，可以防止了低音外壳内腔内的低音对低音出口处的低音产生干扰，从而减少了低音的失真度；中音在中音外壳内腔内反射并相互抵消，防止了中音外壳内腔内的中音传至中音外壳的前端面，防止了中音外壳内腔内的中音对中音出口处的中音产生干扰，从而减少了中音的失真度，达到高保真的中音效果；低音发生器对低音进行还原，中音发生器对中音进行还原，高音发生器对高音进行还原，因此本发明能够发出的声音能够还原成真实的低音，中音和高音。
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，而可依照说明书的内容予以实施，并且为了让本发明的上述和其他目的、特征和优点能够更明显易懂，以下特举较佳实施例，并配合附图，详细说明如下。
附图说明
图1是本发明的示意图。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面结合附图对本发明做进一步描述。
如图1所示，一种三单元球形音箱，包括：低音发生器10，中音发生器20，高音发生器30。
如图1所示，低音发生器10，低音发生器10包括与外部低音分频器连接的低音扬声器101，以及内腔呈球形的低音外壳102，低音外壳102的前端面设有低音出口103，低音扬声器101的前部与低音出口103相对应并连接固定，低音扬声器101的尾部位于低音外壳内腔104内，低音外壳内腔104的内壁涂有消音层105。如图1所示，图中低音外壳内腔104内箭头表示低音传播方向，低音扬声器101产生的低音向四周扩散，一部分低音沿着低音出口103往外扩散，另一部于低音外壳内腔104内扩散，低音在低音外壳内腔104内反射并相互抵消，防止了低音外壳内腔104内的低音传至低音外壳102的前端面，因此，可以防止了低音外壳内腔104内的低音对低音出口103处的低音产生干扰，从而减少了低音的失真度，达到高保真的低音效果。低音外壳内腔104内的消音层105对低音外壳内腔104内的低音起到消除作用，同时可以减少低音外壳102的振动。
如图1所示，中音发生器20，中音发生器20包括与外部中音分频器连接的中音扬声器201，以及内腔呈球形的中音外壳202，中音外壳202的前端面设有中音出口203，中音扬声器201的前部与中音出口203相对应并连接固定，中音扬声器201的尾部位于中音外壳内腔204内，中音外壳内腔204的内壁涂有消音层105。如图1所示，图中中音外壳内腔204内箭头表示中音传播方向，中音扬声器201产生的低音向四周扩散，一部分中音沿着中音出口203往外扩散，另一部于中音外壳内腔204内扩散，中音在中音外壳内腔204内反射并相互抵消，防止了中音外壳内腔204内的中音传至中音外壳202的前端面，因此，可以防止了中音外壳内腔204内的中音对中音出口203处的中音产生干扰，从而减少了中音的失真度，达到高保真的中音效果。中音外壳内腔204内的消音层105对中音外壳内腔204内的中音起到消除作用，同时可以减少中音对中音外壳202产生的振动。
如图1所示，高音发生器30；高音发生器30包括号角301，与外部高音分频器连接的高音扬声器302，两端开口的筒状壳体303，以及球形散热器304，高音扬声器302位于筒状壳体303内，且高音扬声器302的前端与号角301固定连接，后端紧贴球形散热器304。高音扬声器302的发生膜为钴磁球顶铝膜，号角301对高音扬声器302产生的高音起到能量加强的作用，球形散热器304对高音扬声器302后端的钴磁起到散热冷却的效果。
如图1所示，外部的CD播放机通过音频放大器分别与低音分频器，中音分频器和高音分频器连接；低音分频器，中音分频器和高音分频器分别将音频对应地分为低音，中音和高音，低音扬声器101通过低音外壳102产生一种保真度高的低音；中音扬声器201通过中音外壳202产生一种保真度高的中音；保真度高的低音，保真度高的中音以及高音扬声器302产生的高音能够使得三单元球形音箱产生的声音达到还原原声的效果。
如图1所示，中音外壳202固定于低音外壳102的顶部表面，筒状壳体303固定于中音外壳202的顶部表面。
具体地，如图1所示，低音外壳内腔104内填充有羊毛毡或蚕丝，羊毛毡或蚕丝紧贴低音外壳内腔104内壁的消音层105；中音外壳内腔204填充有羊毛毡或蚕丝，羊毛毡或蚕丝紧贴中音外壳内腔204内壁的消音层105。消音层105为丁氰橡胶层。
如图1所示，低音外壳102和中音外壳202分别为304不锈钢制成的空心球体，中音外壳202的半径不大于低音外壳102的半径，低音外壳102的半径为中音外壳202的半径的2～10倍。球形散热器304为304不锈钢制成的实心球体，304不锈钢制成的实心球体散热效果好，外表美观。304不锈钢制成的空心球体耐用可靠，而且可以回收利用，环保。
如图1所示，三单元球形音箱还包括连接管107和若干根导线，低音外壳102后端面设有导线孔，连接管107的一端与低音外壳102的顶部表面贯穿固定，另一端与中音外壳202底部表面贯穿固定；一根导线的一端与外部低音分频器连接，另一端穿过导线孔与低音扬声器101连接；另一根导线的一端与外部中音分频器连接，另一端依次穿过导线孔，低音外壳102空腔以及连接管107后与中音扬声器201连接，使得三单元球形音箱外表美观。
以上是本发明的具体实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围。

Claims (6)

  1. 一种三单元球形音箱，其特征在于，包括：
    低音发生器，所述低音发生器包括与外部低音分频器连接的低音扬声器，以及内腔呈球形的低音外壳，所述低音外壳的前端面设有低音出口，所述低音扬声器的前部与低音出口相对应并连接固定，所述低音扬声器的尾部位于低音外壳内腔内，所述低音外壳内腔的内壁涂有消音层；
    中音发生器，所述中音发生器包括与外部中音分频器连接的中音扬声器，以及内腔呈球形的中音外壳，所述中音外壳的前端面设有中音出口，所述中音扬声器的前部与中音出口相对应并连接固定，所述中音扬声器的尾部位于中音外壳内腔内，所述中音外壳内腔的内壁涂有消音层；
    高音发生器；高音发生器包括号角，与外部高音分频器连接的高音扬声器，两端开口的筒状壳体，以及球形散热器，所述高音扬声器位于筒状壳体内，且高音扬声器的前端与号角固定连接，后端紧贴球形散热器；
    所述中音外壳固定于低音外壳的顶部表面，所述筒状壳体固定于中音外壳的顶部表面。
  2. 如权利要求1所述的三单元球形音箱，其特征在于，所述低音外壳内腔内填充有羊毛毡或蚕丝，所述羊毛毡或蚕丝紧贴低音外壳内腔内壁的消音层；所述中音外壳内腔填充有羊毛毡或蚕丝，所述羊毛毡或蚕丝紧贴中音外壳内腔内壁的消音层。
  3. 如权利要求1或2所述的三单元球形音箱，其特征在于，所述消音层为丁氰橡胶层。
  4. 如权利要求1所述的三单元球形音箱，其特征在于，所述低音外壳和中音外壳分别为304不锈钢制成的空心球体。
  5. 如权利要求1所述的三单元球形音箱，其特征在于，所述球形散热器为304不锈钢制成的实心球体。
  6. 如权利要求1所述的三单元球形音箱，其特征在于，所述三单元球形音箱还包括连接管和若干根导线，所述低音外壳后端面设有导线孔，所述连接管的一端与低音外壳的顶部表面贯穿固定，另一端与中音外壳底部表面贯穿固定；一根导线的一端与外部低音分频器连接，另一端穿过导线孔与低音扬声器连接；另一根导线的一端与外部中音分频器连接，另一端依次穿过导线孔，低音外壳空腔以及连接管后与中音扬声器连接。
PCT/CN2016/111466 2016-11-29 2016-12-22 三单元球形音箱 WO2018098866A1 (zh)

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