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Condenser microphone and electronic equipment with interchangeable bidirectional and non-directional functions

A condenser microphone, non-directional technology, applied in electrical components, sensor parts, microphone port/microphone accessories, etc., can solve the problem of limiting the application range of condenser microphones, and achieve the effect of expanding the scope of use

Active Publication Date: 2019-01-18
SUZHOU SENSOR MICROELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are many types of condenser microphones, such as bidirectional, unidirectional and non-directional, etc. However, the condenser microphones used in existing electronic equipment generally only have non-directional or bidirectional functions. function, thus limiting the application range of condenser microphones

Method used

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  • Condenser microphone and electronic equipment with interchangeable bidirectional and non-directional functions
  • Condenser microphone and electronic equipment with interchangeable bidirectional and non-directional functions
  • Condenser microphone and electronic equipment with interchangeable bidirectional and non-directional functions

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Experimental program
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Effect test

Embodiment 1

[0033] Such as Figure 1-7 As shown, the embodiment of the present invention provides a bidirectional and non-directional capacitive microphone with interchangeable functions, including: a bidirectional capacitive microphone 13 and a sealing member 3, and the bidirectional capacitive microphone 13 includes: a metal Housing, impedance circuit 10, and circuit board 4, an upper opening 5b is provided above the metal housing, a lower opening 6b is provided below the metal housing, a fixed electrode 1 is arranged inside the metal housing, and a fixed electrode 1 is provided with an upper vibrating film 2a, and the lower part of the fixed electrode 1 is provided with a lower vibrating film 2b. The position of the upper vibrating film 2a corresponds to the position of the upper opening 5b, and the position of the lower vibrating film 2b corresponds to the position of the lower opening 6b. correspond;

[0034] The fixed electrode 1, the upper vibrating membrane 2a and the impedance c...

Embodiment 2

[0052] Such as Figure 4-7 As shown, the embodiment of the present invention provides an electronic device, including the bidirectional and non-directional functionally interchangeable condenser microphone described in Embodiment 1, the housing case 9 and the circuit substrate 12, the circuit substrate 12 is arranged on In the housing case 9 , the bidirectional condenser microphone 13 is embedded in the opening of the circuit board 12 .

[0053] Wherein, the structure and function of the capacitive microphone whose bidirectional and non-directional functions are interchangeable have been described in detail in Embodiment 1, and will not be repeated here.

[0054] In a preferred embodiment of the present invention, the operation window 3b of the sealing part 3 is arranged on the upper cover 9a of the housing case 9, and the sealing body 3c of the sealing part 3 is located between the circuit board 12 and the upper cover 9a of the housing case 9 space between.

[0055] In the ...

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Abstract

Disclosed are a condenser microphone with mutually switched bi-directional and non-directional functions, and an electronic device, which relate to the technical field of microphone structures. In the condenser microphone and the electronic device, when a sealing component is not located at the position of an upper opening or a lower opening, and is not attached to the upper opening or the lower opening, the condenser microphone has a bi-directional function; whereas when the sealing component is located at the position of the upper opening or the lower opening, and is attached to the upper opening or the lower opening, the condenser microphone has a non-directional function. Therefore, the condenser microphone provided by the embodiments of the present invention has a dual function of bi-directionality and non-directionality, and can be switched between the bi-directional function and the non-directional function, such that a bi-directional condenser microphone can be switched to a non-directional condenser microphone, thereby broadening the usage range thereof.

Description

technical field [0001] The invention relates to the technical field of microphone structures, in particular to a condenser microphone and an electronic device with interchangeable bidirectional and non-directional functions. Background technique [0002] Condenser microphones have been used in many fields because of their wide frequency response, specific flat frequency response, small nonlinear distortion, good transient response and high sensitivity. [0003] At present, condenser microphones are mainly composed of a capacitor head and a pre-amplifier, and the capacitor head is composed of a vibrating membrane and an electrode plate. The polarization voltage is added between the vibrating membrane and the electrode plate through a resistor R. When the ground is rubbing, the distance between the two electrode plates changes due to vibration, that is, the capacitance C changes, while the electric quantity Q on the electrode plates does not change, which will cause the voltag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R1/08
CPCH04R1/083
Inventor 宋军渡边嘉二郎
Owner SUZHOU SENSOR MICROELECTRONICS TECH CO LTD