WO2022252149A1 - 一种耳机低音倍增器结构 - Google Patents

一种耳机低音倍增器结构 Download PDF

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Publication number
WO2022252149A1
WO2022252149A1 PCT/CN2021/097908 CN2021097908W WO2022252149A1 WO 2022252149 A1 WO2022252149 A1 WO 2022252149A1 CN 2021097908 W CN2021097908 W CN 2021097908W WO 2022252149 A1 WO2022252149 A1 WO 2022252149A1
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speaker
middle frame
bass
loudspeaker
upper cover
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PCT/CN2021/097908
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English (en)
French (fr)
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耿军
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耿军
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Priority to PCT/CN2021/097908 priority Critical patent/WO2022252149A1/zh
Publication of WO2022252149A1 publication Critical patent/WO2022252149A1/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
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones

Definitions

  • the invention relates to the technical field of earphones, in particular to the structural improvement of an earphone bass multiplier.
  • Headphones for personal entertainment have become very popular. Apart from some people who just want to "listen to the sound”, listening to music and enriching personal leisure life are the needs of most users. Limited by the commodity price, the earphones below the mid-range on the market are limited by the manufacturing process and cost of the speaker unit, so there are certain deficiencies in the sound reproduction, mainly in: either the bass is muddy or the bass dive is not enough , either the bass is insufficient, or the human voice is not full, the sound is hazy, the resolution is poor, the sense of presence is not enough, the sound field is far away from the ear, the sound of the pipe is heavy, etc. All these shortcomings are due to the speaker and structural design. How to use ordinary devices to design high-end headphone effects through structural changes, so that the majority of users can enjoy high-end HiFi sound effects at a low cost is a technical problem to be solved at present.
  • the purpose of the present invention is to solve the problems of unsatisfactory acoustic effect of existing earphones, or high cost and complicated structure, and propose a bass multiplier structure for earphones.
  • An earphone bass multiplier structure comprising a cavity composed of a speaker middle frame, a speaker back cover and a speaker upper cover, and a woofer is arranged in the cavity; it is characterized in that: the speaker middle frame includes an outer middle frame and a set The inner middle frame in the outer middle frame; the outer middle frame and the inner middle frame are connected by spokes, and a first sound hole is formed between the outer middle frame and the inner middle frame; the upper surface of the inner middle frame is set There is an annular inner middle frame groove, and the inner surface of the upper cover of the horn is provided with annular ribs extending into the annular inner middle frame groove, and the gap between the annular rib and the groove bottom and the groove wall of the annular inner middle frame groove In cooperation, the upper cover of the speaker is located on the inner side of the ring-shaped ribs and is provided with a low-midrange outlet, and an S-shaped bass airflow channel passing through the ring-shaped inner middle frame groove is formed between the first sound outlet and the low-mid
  • a loudspeaker is embedded and fixed in the center of the upper speaker cover; a moving iron horn inserted into the loudspeaker is arranged on the inner side of the upper speaker cover.
  • the outer wall of the speaker middle frame is provided with an annular hollow layer.
  • the middle frame of the speaker and the back cover of the speaker, and the middle frame of the speaker and the upper cover of the speaker are all sealed and connected by positioning protrusions, positioning grooves and glue.
  • the inner side of the horn upper cover accommodates the moving iron horn cavity of the moving iron horn.
  • the upper cover of the horn is provided with a phase-inverting hole communicating with the tail of the moving iron horn cavity.
  • the fastening place between the middle frame of the speaker and the back cover of the speaker is provided with a first phase-inverting channel communicating with the bass resonant cavity on the back of the woofer;
  • the second phase-inverting channel that communicates with the body.
  • Described loudspeaker adopts aluminum loudspeaker.
  • the beneficial effects of the present invention are: when the woofer of the present invention is working in sound, the airflow it promotes passes through the S-shaped bass airflow channel between the speaker middle cover and the speaker upper cover, and due to the effect of the limited volume design of the cavity, the airflow Strong pressure is generated to flow to the edge gap. After being blocked by the wall of the S-shaped bass airflow channel, the airflow is forced to go around. By adjusting this size, not only the bass is greatly improved, but also due to the effect of the secondary surround , so that the reverberation of the bass is further supplemented, it actually sounds surging and powerful, and the echo surrounds the beam, achieving a very high sound effect.
  • Fig. 1 is the vertical structure schematic diagram of the present invention
  • Fig. 2 is a schematic diagram of the decomposition structure of the present invention.
  • Fig. 3 is a schematic diagram of an exploded structure of another angle of the present invention.
  • Fig. 4 is a schematic cross-sectional structure diagram of the present invention.
  • a kind of earphone bass multiplier structure of the present invention comprises the cavity body that frame 1 in speaker, speaker back cover 2 and speaker loam cake 3 are formed, is provided with woofer 4 in the cavity;
  • the speaker 4 is fixed on the speaker middle frame 1, and the bass resonator 41 is formed between the back of the woofer 4 and the speaker rear cover 2, and the middle speaker frame 1 and the speaker 2 are buckled together, and a first hole communicating with the bass resonator body 41 is provided.
  • An inverter channel 42 is provided.
  • the horn middle frame 1 includes an outer middle frame 11 and an inner middle frame 12 arranged in the outer middle frame 11; the outer middle frame 11 and the inner middle frame 12 are connected by a plurality of spokes 13, and the outer middle frame 11 and the inner middle frame 12 are connected with each other.
  • a first sound outlet 10 is formed between the inner and middle frames 12; that is, when the woofer 4 is in sounding operation, the bass airflow promoted by it can enter the gap between the speaker middle cover 1 and the speaker upper cover 3 through the first sound outlet 10 between.
  • the upper surface of the inner middle frame 12 is provided with an annular inner middle frame groove 121, and the inner surface of the horn upper cover 3 is provided with a groove extending to the annular inner middle frame.
  • the annular rib 31 in the groove 121, the annular rib 31 and the groove bottom and the groove wall of the annular inner middle frame 121 are in clearance fit, the horn upper cover 3 is located on the inner side of the annular rib 31, and is provided with a low-medium sound outlet 32, the first An S-shaped bass airflow channel passing through the ring-shaped inner middle frame groove 121 is formed between the sound outlet 10 and the low-medium sound outlet 32; Between the horn loam cake 3 there is a low and midrange mixing chamber 51.
  • the bass airflow generated when the woofer 4 makes a sound passes through the bass airflow channel between the speaker middle cover 1 and the speaker upper cover 3 in an S-shaped path, mixes with the midrange airflow generated by the midrange speaker 5, and then passes through the low-midrange outlet 32 discharge, the bass has been greatly enhanced, and due to the secondary surround effect in the S-shaped bass airflow channel, the reverberation of the bass has been further supplemented. sound effects.
  • a loudspeaker 6 is embedded and fixed in the center of the speaker upper cover 3, and the loudspeaker 6 is preferably an aluminum loudspeaker;
  • the moving iron horn 7 in the interior.
  • three moving iron horns 7 evenly distributed are used to produce treble, and the loudspeaker 6 is used to amplify the sound.
  • the inner side of the horn upper cover 3 accommodates the moving iron horn cavity of the moving iron 7 .
  • the horn upper cover 3 is provided with an inverter hole 33 communicating with the tail of the moving iron horn cavity.
  • the outer wall of the speaker middle frame 1 is provided with an annular hollow layer 14 .
  • a second phase-inverting channel 43 communicating with the back cavity of the mid-range speaker is provided at the joint between the speaker middle frame 1 and the speaker upper cover 3 .
  • the earphone bass multiplier structure of the present invention in conjunction with the frequency division circuit, can realize the three-frequency earphone box structure, and obtain an unconventional bass boosting effect; the structure in this embodiment is mainly suitable for headphones, and is used in When it comes to in-ear headphones, only a slight modification to the form factor is required.
  • the present invention uses ordinary devices to design high-end earphone effects through structural changes, allowing users to enjoy high-end HiFi sound-like effects at a low cost.
  • the present invention will certainly have huge social and economic benefits.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Headphones And Earphones (AREA)

Abstract

一种耳机低音倍增器结构，涉及到耳机技术领域，解决现有的耳机音响效果不理想，或者存在成本高，结构复杂的技术不足，包括有喇叭中框、喇叭后盖和喇叭上盖构成的腔体，喇叭中框包括有外中框和内中框；内中框的上表面设有环形内中框凹槽，喇叭上盖内表面设有延伸至所述的环形内中框凹槽中的环形筋骨，环形筋骨与环形内中框凹槽的槽底和槽壁间隙配合，内中框中心位置设有中音喇叭，中音喇叭上方与喇叭上盖之间有低中音混合腔。气流经过S形低音气流通道壁的阻挡，强迫气流产生绕行出来，低音得到较大的力度提升，而且由于二次环绕的作用，使得低音的回响得到进一步的补充，实际听起来澎湃有力，回音绕梁，达到了极高的音响效果。

Description

一种耳机低音倍增器结构 技术领域
本发明涉及到耳机技术领域，尤其是耳机低音倍增器结构改进方面。
 背景技术
个人娱乐用耳机已经非常普及，抛开一部分只是“听个响”的需求人群以外，倾听音乐，丰富个人业余生活，是大多数使用者的需求。受到商品价格限制，目前市场上中端以下耳机，受制于喇叭单体的制造工艺和成本限制，对声音的重放存在一定的不足，主要表现在：要么低音混浊不清，要么低音下潜不够，要么是低音不足，或者是人声不饱满，声音朦胧解析力差，临场感不够，声场偏离耳朵较远，管道声重等等，如此各种不足，都是因为喇叭和结构设计的原因。如何利用普通的器件通过结构改变设计出高端耳机效果，让广大用户可以低消费享受到高端HiFi音响般的效果，是目前有待解决的技术难题。
 技术问题
综上所述，本发明的目的在于解决现有的耳机音响效果不理想，或者存在成本高，结构复杂的技术不足，而提出一种耳机低音倍增器结构。
 技术解决方案
为解决本发明所提出的技术不足，而采用的技术方案为：
一种耳机低音倍增器结构，包括有喇叭中框、喇叭后盖和喇叭上盖构成的腔体，腔体内设有低音喇叭；其特征在于：所述的喇叭中框包括有外中框和设于外中框内的内中框；外中框与内中框之间通过辐条连接，外中框与内中框之间形成有第一出声孔；所述的内中框的上表面设有环形内中框凹槽，所述的喇叭上盖内表面设有延伸至所述的环形内中框凹槽中的环形筋骨，环形筋骨与环形内中框凹槽的槽底和槽壁间隙配合，喇叭上盖上位于环形筋骨内侧位置，设有低中音出口，所述的第一出声孔至低中音出口之间形成有途经环形内中框凹槽的S形低音气流通道；所述的内中框中心位置设有中音喇叭，中音喇叭上方与喇叭上盖之间有低中音混合腔。
作为对本发明作进一步限定的技术方案包括有：
所述的喇叭上盖中心位置嵌入固定有扩音器；在喇叭上盖内侧设有插入至扩音器内的动铁喇叭。
所述的喇叭中框外侧壁设有环形中空层。
所述的喇叭中框与喇叭后盖之间，以及喇叭中框与喇叭上盖之间均通过定位凸起、定位凹槽和胶水密封连接。
所述的喇叭上盖内侧容纳所述动铁喇叭的动铁喇叭腔体。
所述的喇叭上盖上设有与动铁喇叭腔体尾部相通的倒相孔。
所述的喇叭上盖内侧三个插入至扩音器内的动铁喇叭。
所述的喇叭中框与喇叭后盖扣合处设有与低音喇叭背面的低音谐振腔体相通的第一倒相通道；喇叭中框与喇叭上盖扣合处设有与中音喇叭背面腔体相通的第二倒相通道。
所述的扩音器采用铝扩音器。
 有益效果
本发明的有益效果为：本发明的低音喇叭在发音工作时，其推动的气流在喇叭中盖与喇叭上盖之间的S形低音气流通道通过，由于腔体有限容积设计的作用，使得气流产生强大的压力向边缘空隙处流动，经过S形低音气流通道壁的阻挡，强迫气流产生绕行出来，通过对此尺寸的调整，不但低音得到较大的力度提升，而且由于二次环绕的作用，使得低音的回响得到进一步的补充，实际听起来澎湃有力，回音绕梁，达到了极高的音响效果。
 附图说明
图1为本发明的立结构示意图；
图2为本发明的分解结构示示意；
图3为本发明的另一角度的分解结构示意图；
图4为本发明的截面结构示意图。
 本发明的最佳实施方式
以下结合附图和本发明优选的具体实施例对本发明的结构作进一步地说明。
参照图1至图4中所示，本发明一种耳机低音倍增器结构，包括有喇叭中框1、喇叭后盖2和喇叭上盖3构成的腔体，腔体内设有低音喇叭4；低音喇叭4固定于喇叭中框1，低音喇叭4的背面与喇叭后盖2间形成低音谐振腔41，所述的喇叭中框1与喇叭2扣合处设有与低音谐振腔体41相通的第一倒相通道42。
所述的喇叭中框1包括有外中框11和设于外中框11内的内中框12；外中框11与内中框12之间通过多根辐条13连接，外中框11与内中框12之间形成有第一出声孔10；也即是低音喇叭4在发音工作时，其推动的低音气流可以经第一出声孔10进入喇叭中盖1与喇叭上盖3之间。为了增强本实用新型的低音效果，所述的内中框12的上表面设有环形内中框凹槽121，所述的喇叭上盖3内表面设有延伸至所述的环形内中框凹槽121中的环形筋骨31，环形筋骨31与环形内中框121的槽底和槽壁间隙配合，喇叭上盖3上位于环形筋骨31内侧位置，设有低中音出口32，所述的第一出声孔10至低中音出口32之间形成有途经环形内中框凹槽121的S形低音气流通道；所述的内中框121位置设有中音喇叭5，中音喇叭5上方与喇叭上盖3之间有低中音混合腔51。当低音喇叭4发音时产生的低音气流以S形路径通过喇叭中盖1与喇叭上盖3之间低音气流通道后，与中音喇叭5发音产生的中音气流混合后，经低中音出口32排出，低音得到较大的力度提升，而且由于在S形低音气流通道中二次环绕的作用，使得低音的回响得到进一步的补充，实际听起来澎湃有力，回音绕梁，达到了极高的音响效果。
为了使本发明具有高音效果，所述的喇叭上盖3中心位置嵌入固定有扩音器6，扩音器6优选为铝扩音器；在喇叭上盖3内侧设有插入至扩音器6内的动铁喇叭7。附图中采用均匀分布3个动铁喇叭7产生高音，并经扩音器6进行扩音处理。为了便于动铁喇叭7的安装固定，所述的喇叭上盖3内侧容纳所述动铁7的动铁喇叭腔体。所述的喇叭上盖3上设有与动铁喇叭腔体尾部相通的倒相孔33。
本发明为了降低外部噪音干扰，所述的喇叭中框1外侧壁设有环形中空层14。
为了实现喇叭中框1、喇叭后盖2和喇叭上盖3之间密封固定连接，所述的喇叭中框1与喇叭后盖2之间，以及喇叭中框1与喇叭上盖3之间均通过定位凸起、定位凹槽和胶水密封连接。喇叭中框1与喇叭上盖3扣合处设有与中音喇叭背面腔体相通的第二倒相通道43。
本发明耳机低音倍增器结构，配合分频电路，即可实现三分频的耳机箱体结构，获得超乎常规的低音提升效果；本实施例中结构主要适用于头戴式耳机，而应用于入耳式耳机时，只需对外形略作修改即可。本发明利用普通的器件通过结构改变设计出高端耳机效果，让广大用户可以低消费享受到高端HiFi音响般的效果，本发明必将具有巨大的社会效益和经济效益。
 

Claims (9)

  1. 一种耳机低音倍增器结构，包括有喇叭中框、喇叭后盖和喇叭上盖构成的腔体，腔体内设有低音喇叭；其特征在于：所述的喇叭中框包括有外中框和设于外中框内的内中框；外中框与内中框之间通过辐条连接，外中框与内中框之间形成有第一出声孔；所述的内中框的上表面设有环形内中框凹槽，所述的喇叭上盖内表面设有延伸至所述的环形内中框凹槽中的环形筋骨，环形筋骨与环形内中框凹槽的槽底和槽壁间隙配合，喇叭上盖上位于环形筋骨内侧位置，设有低中音出口，所述的第一出声孔至低中音出口之间形成有途经环形内中框凹槽的S形低音气流通道；所述的内中框中心位置设有中音喇叭，中音喇叭上方与喇叭上盖之间有低中音混合腔。
  2. 根据权利要求1所述的一种耳机低音倍增器结构，其特征在于：所述的喇叭上盖中心位置嵌入固定有扩音器；在喇叭上盖内侧设有插入至扩音器内的动铁喇叭。
  3. 根据权利要求1或2中所述的一种耳机低音倍增器结构，其特征在于：所述的喇叭中框外侧壁设有环形中空层。
  4. 根据权利要求1或2中所述的一种耳机低音倍增器结构，其特征在于：所述的喇叭中框与喇叭后盖之间，以及喇叭中框与喇叭上盖之间均通过定位凸起、定位凹槽和胶水密封连接。
  5. 根据权利要求3中所述的一种耳机低音倍增器结构，其特征在于：所述的喇叭上盖内侧容纳所述动铁喇叭的动铁喇叭腔体。
  6. 根据权利要求5中所述的一种耳机低音倍增器结构，其特征在于：所述的喇叭上盖上设有与动铁喇叭腔体尾部相通的倒相孔。
  7. 根据权利要求3中所述的一种耳机低音倍增器结构，其特征在于：所述的喇叭上盖内侧三个插入至扩音器内的动铁喇叭。
  8. 根据权利要求1所述的一种耳机低音倍增器结构，其特征在于：所述的喇叭中框与喇叭后盖扣合处设有与低音喇叭背面的低音谐振腔体相通的第一倒相通道；喇叭中框与喇叭上盖扣合处设有与中音喇叭背面腔体相通的第二倒相通道。
  9. 根据权利要求8所述的一种耳机低音倍增器结构，其特征在于：所述的扩音器采用铝扩音器。
PCT/CN2021/097908 2021-06-02 2021-06-02 一种耳机低音倍增器结构 WO2022252149A1 (zh)

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