WO2017177380A1 - 一种车载传声器模组 - Google Patents

一种车载传声器模组 Download PDF

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Publication number
WO2017177380A1
WO2017177380A1 PCT/CN2016/079085 CN2016079085W WO2017177380A1 WO 2017177380 A1 WO2017177380 A1 WO 2017177380A1 CN 2016079085 W CN2016079085 W CN 2016079085W WO 2017177380 A1 WO2017177380 A1 WO 2017177380A1
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WIPO (PCT)
Prior art keywords
microphone
vehicle
housing
circuit board
preamplifier circuit
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PCT/CN2016/079085
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English (en)
French (fr)
Inventor
王海舟
陈睿华
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深圳市鲁粤盛科技有限公司
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Application filed by 深圳市鲁粤盛科技有限公司 filed Critical 深圳市鲁粤盛科技有限公司
Priority to PCT/CN2016/079085 priority Critical patent/WO2017177380A1/zh
Priority to CN201680003037.7A priority patent/CN107005773A/zh
Publication of WO2017177380A1 publication Critical patent/WO2017177380A1/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
    • H04R1/04—Structural association of microphone with electric circuitry therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • H04R19/016—Electrostatic transducers characterised by the use of electrets for microphones
    • 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
    • H04R9/08—Microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/003—Mems transducers or their use

Definitions

  • the invention relates to the technical field of automobiles, and in particular to a vehicle microphone module.
  • the object of the present invention is to overcome the deficiencies of the prior art and to provide a vehicle microphone module.
  • the invention provides a vehicle microphone module, comprising: a casing, a connector disposed at one end of the casing, connected to the connector and used for amplifying and frequency-compensating the output signal of the microphone.
  • a preamplifier circuit board an electret microphone connected to the preamplifier circuit board; and a cover disposed at the other end of the outer casing, and a sponge pad disposed on the cover.
  • the preamplifier circuit board is connected to the microphone signal through a microphone connection line.
  • the air filter disposed on the cover is further included.
  • the electret microphone is a condenser microphone.
  • the electret microphone is fixed in the outer casing by a silicone sleeve.
  • the invention has the beneficial effects that the combination of the preamplifier and the electret microphone technology realizes the electroacoustic conversion combination with high sensitivity and high stability, and adopts the shell and the sponge mat to realize the strong seismic resistance and easy assembly, and is widely used.
  • FIG. 1 is a schematic structural diagram of a vehicle microphone module according to an embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a vehicle microphone module provided by the present invention.
  • An embodiment of the present invention provides a vehicle microphone module.
  • the vehicle microphone module includes a housing 1 and a connector 8 disposed at one end of the housing 1 and connected to the connector 8 for outputting a microphone output signal.
  • the preamplifier is combined with the electret microphone 5 technology to realize a high-sensitivity and high-stability electroacoustic conversion combination, and the housing 1 and the sponge pad 9 are used together to achieve strong seismic resistance and easy assembly. It is widely used in various electrical and electronic products that require sound input for various automobiles.
  • the microphone module provided in this embodiment includes a housing 1 , a connector 8 disposed at one end of the housing 1 , and is connected to the connector 8 for amplifying and frequency-compensating the output signal of the microphone.
  • the preamplifier circuit board 2 is connected to the microphone signal via a microphone connection line 3 when specifically connected. A signal connection between the two is achieved. Also included is a dust screen 6 disposed on the cover. And the microphone is fixed in the outer casing 1 through the silicone sleeve 4.
  • the outer casing 1 is used for fixing and protecting the microphone and the amplifying board, and is combined with other parts to open the front and rear cavities;
  • the preamplifier circuit board 2 amplifies and frequency-compensates the output signal of the microphone;
  • the microphone connecting line 3 is used for The microphone power supply and signal output to the amplifying board;
  • the silicone rubber sleeve 4 is used for providing vibration protection for the microphone and the amplifying board, and the inner cavity of the outer casing is divided into front and rear cavities;
  • the electret microphone 5 is used for converting sound into electric signals; 6 is used to prevent external dust from entering the inside of the product;
  • the cover 7 is used to support the air filter 6, the silicone rubber sleeve 4 is fixed, and the sound hole is provided;
  • the connector 8 and the SR are used to amplify and compensate the rear signal output, SR (Strain Relief, The strain relief head) secures the connector and seals the back cavity;
  • the sponge pad 9 is used to ensure the sealing of the sound
  • the housing 1 is provided with a receiving cavity, and the receiving cavity is provided with a preamplifier circuit board 2, the output end of the preamplifying circuit board 2 is connected with a connector 8 for the customer, and the electret connected to the input end
  • the microphone 5 is a condenser microphone, and the microphone is fixed in the accommodating chamber by a silicone rubber sleeve 4.
  • the product is 4Pin terminal output, and two microphones are connected to each other, and the original sound and signal input and output modes of the electret microphone 5 are maintained.
  • the preamplifier board is equipped with a circuit with low noise, low distortion, high amplification, and frequency response compensation. This can effectively improve the sound.
  • the sensitivity is as high as -3 db
  • the microphone is fixed by the silicone rubber sleeve 4 to prevent the vibration of the car during traveling from being directly transmitted to the microphone.
  • the electret microphone 5 and the preamplifier circuit board 2 are installed in the outer casing 1, and the dustproof net 6 is added to the cover 7 to protect the inside of the outer casing 1 from dust, thereby preventing dust from proceeding and causing product function.
  • the front end of the cover 7 is pasted with a sponge pad 9 to ensure sealing with the client casing, and the signal is taken out from the rear end of the casing 1 through the 4Pin connector 8, and the SR is fixed and sealed between the connecting wire and the casing 1 from the sound cavity. Stability and consistency.
  • the microphone module provided by the embodiment combines the preamplifier with the electret microphone 5 technology to realize a high-sensitivity and high-stability electroacoustic conversion combination, and adopts the outer casing 1, the silicon rubber sleeve 4, and the sponge to realize the seismic resistance. Strong and easy to assemble, it is widely used in various electronic and electrical products that require sound input for various automobiles.
  • the combination of the outer casing 1 and the sponge ensures the sealing of the acoustic cavity and the consistency of the front cavity after the customer is assembled;
  • the SR and the outer casing 1 are closely matched to ensure the consistency of the rear cavity;
  • the preamplifier circuit has a common power supply and a signal output common pole, and maintains the original use characteristics of the electret microphone 5;
  • the left and right outer casings 1 are connected to the same terminal, Convenient for customer platforms.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

一种车载传声器模组，该车载传声器模组包括：外壳(1)，设置在所述外壳(1)内一端的连接器(8)，与所述连接器(8)连接并用于对驻极体传声器(5)输出信号进行放大及频曲补偿的前置放大电路板(2)，与所述前置放大电路板(2)连接的驻极体传声器(5)；还包括设置在所述外壳(1)另一端的盖子(7)，设置在所述盖子(7)上的海绵垫(9)。采用前置放大与驻极体传声器(5)技术结合，实现高灵敏度、高稳定性的电声转换组合，采用外壳(1)、海绵垫(9)配合，实现抗震能力强、易装配特点，广泛用于各种汽车需声音输入的各种电子电气产品。

Description

一种车载传声器模组 技术领域
本发明涉及到汽车的技术领域，尤其涉及到一种车载传声器模组。
背景技术
随着社会的发展，生活水平的提高，交通法律的日益完善，汽车日益平民化，人们对车载通讯的要求也越来越高，如行车中通讯，车载智能系统语音输入等等，这为车载传声器技术提供了强大的推动力及广阔市场。但是，现有技术中的车载传声器存在汽车通讯传声器灵敏度低、装配后频响曲线变化大、抗震能力低、外置占用空间的问题。
发明内容
本发明的目的是为了克服现有技术的不足，提供了一种车载传声器模组。
本发明是通过以下技术方案实现：
本发明提供了一种车载传声器模组，该车载传声器模组包括：外壳，设置在所述外壳内一端的连接器，与所述连接器连接并用于对传声器输出信号进行放大及频曲补偿的前置放大电路板，与所述前置放大电路板连接的驻极体传声器；还包括设置在所述外壳另一端的盖子，设置在所述盖子上的海绵垫。
优选的，所述前置放大电路板通过传声器连接线与所述传声器信号连接。
优选的，还包括设置在所述盖子上的防尘网。
优选的，所述驻极体传声器为电容式传声器。
优选的，所述驻极体传声器通过硅胶套固定在所述外壳内。
本发明的有益效果是：采用前置放大与驻极体传声器技术结合，实现高灵敏度、高稳定性的电声转换组合，采用外壳、海绵垫配合，实现抗震能力强、易装配特点，广泛用于各种汽车需声音输入的各种电子电气产品。
附图说明
图1是本发明实施例提供的车载传声器模组的结构示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
请参阅图1，图1是本发明提供的车载传声器模组的结构示意图。
本发明实施例提供了一种车载传声器模组，该车载传声器模组包括：外壳1，设置在所述外壳1内一端的连接器8，与所述连接器8连接并用于对传声器输出信号进行放大及频曲补偿的前置放大电路板2，与所述前置放大电路板2连接的驻极体传声器5；还包括设置在所述外壳1另一端的盖子7，设置在所述盖子7上的海绵垫9。
在上述实施例中，采用前置放大与驻极体传声器5技术结合，实现高灵敏度、高稳定性的电声转换组合，采用外壳1、海绵垫9配合，实现抗震能力强、易装配特点，广泛用于各种汽车需声音输入的各种电子电气产品。
为了方便理解本实施例提供的传声器模组的结构以及工作原理，下面 结合具体的附图以及实施例对其进行详细的说明。
继续参考图1，本实施例提供的传声器模组包括外壳1，设置在所述外壳1内一端的连接器8，与所述连接器8连接并用于对传声器输出信号进行放大及频曲补偿的前置放大电路板2，与所述前置放大电路板2连接的驻极体传声器5；还包括设置在所述外壳1另一端的盖子7，设置在所述盖子7上的海绵垫9。在具体连接时，所述前置放大电路板2通过传声器连接线3与所述传声器信号连接。实现了两者之间的信号连接。还包括设置在所述盖子上的防尘网6。且传声器通过硅胶套4固定在所述外壳1内。
其中，外壳1用于为传声器与放大板提供固定及保护，并配合其它零件开成前后腔；前置放大电路板2对传声器输出信号进行放大及频曲补尝；传声器连接线3用于为传声器供电及信号输出至放大板；硅橡胶套4用于为传声器及放大板提供抗震保护，并将外壳内腔分成前后腔；驻极体传声器5用于将声音转换为电信号；防尘网6用于防止外界灰尘进入产品内部；盖子7用于支撑防尘网6，固定硅橡胶套4，提供进声孔；连接器8及SR用于放大并补偿后信号输出，SR(Strain Relief，应变消除头)将连接器固定并将后腔密封；海绵垫9用于客户装配时保证进声孔与客户面板的密封
具体的，在外壳1内设有容置腔，容置腔内装有前置放大电路板2，前置放大电路板2输出端连接供客户使用的连接器8，输入端连接着的驻极体传声器5为电容式传声器，传声器由硅橡胶套4进行固定在容纳腔内。产品为4Pin端子输出，并连接着两个传声器分左右各一，且保持驻极体传声器5原有的声音和信号输入输出方式。其中前置放大板装载着低噪声、低失真、高放大、频响补偿的电路。从而可以有效的改善音效。
通过上述描述可以看出，通过采用驻极体传声器5并匹配前置放大电路，实现灵敏度高至-3db，同时将传声器采用硅橡胶套4进行固定防止汽车在行进过程中的震动直接传到传声器而影响其电声性能，将驻极体传声器5及前置放大电路板2安装在外壳1内，并在盖子7增加防尘网6对外壳1内部进行防尘，防止灰尘进行而造成产品功能失效，盖子7前端粘贴海绵垫9来保证与客户端机壳密封性，从外壳1后端通过4Pin连接器8引出信号，连接线与外壳1之间采用SR进行固定和密封，从保证声腔的稳定和一致性。
本实施例提供的传声器模组通过采用前置放大与驻极体传声器5技术结合，实现高灵敏度、高稳定性的电声转换组合，采用外壳1、硅橡胶套4、海绵配合，实现抗震能力强、易装配特点，广泛用于各种汽车需声音输入的各种电子电气产品。并且实现了利用前置放大电路与驻极体传声器5，实现高灵敏度-3db的问题；采用外壳1与海绵的组合，保证客户装配后声腔的密封性及前腔的一致性；利用连接品上SR与外壳1进行紧密配合，保证后腔的一致性；前置放大电路现实供电与信号输出共极，保持了驻极体传声器5原有的使用特性；采用左右外壳1连接到同一端子上，方便客户平台使用。
以上仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (5)

  1. 一种车载传声器模组，其特征在于，包括：外壳，设置在所述外壳内一端的连接器，与所述连接器连接并用于对传声器输出信号进行放大及频曲补偿的前置放大电路板，与所述前置放大电路板连接的驻极体传声器；还包括设置在所述外壳另一端的盖子，设置在所述盖子上的海绵垫。
  2. 根据权利要求1所述的车载传声器模组，其特征在于，所述前置放大电路板通过传声器连接线与所述传声器信号连接。
  3. 根据权利要求2所述的车载传声器模组，其特征在于，还包括设置在所述盖子上的防尘网。
  4. 根据权利要求2所述的车载传声器模组，其特征在于，所述驻极体传声器为电容式传声器。
  5. 根据权利要求1所述的车载传声器模组，其特征在于，所述驻极体传声器通过硅胶套固定在所述外壳内。
PCT/CN2016/079085 2016-04-12 2016-04-12 一种车载传声器模组 WO2017177380A1 (zh)

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CN202998459U (zh) * 2012-11-16 2013-06-12 北京德天泉机电设备有限公司 一种车载麦克风
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