CN213403490U - Novel microphone subassembly and novel microphone - Google Patents
Novel microphone subassembly and novel microphone Download PDFInfo
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- CN213403490U CN213403490U CN202022333104.8U CN202022333104U CN213403490U CN 213403490 U CN213403490 U CN 213403490U CN 202022333104 U CN202022333104 U CN 202022333104U CN 213403490 U CN213403490 U CN 213403490U
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Abstract
The embodiment of the utility model discloses novel microphone subassembly, be applied to electron technical field, this novel microphone subassembly includes the vibrating diaphragm, solenoid, magnet and piezoelectric patches, the piezoelectric patches is fixed at the upper surface of vibrating diaphragm, the lower surface of vibrating diaphragm has metal magnetic coating, the magnet is located the below of vibrating diaphragm and with the vibrating diaphragm between have preset the distance, solenoid fixed winding is on the magnet, metal magnetic coating and solenoid, magnet constitutes electromagnetic vibration system, be used for sending bass and middle-pitched sound, metal magnetic coating constitutes high pitch vibration system with the piezoelectric patches, be used for sending the high pitch, a novel microphone is still disclosed, including this novel microphone subassembly, novel microphone subassembly and novel microphone can realize wide frequency domain transaudient, the tone quality performance is obviously superior to ordinary microphone.
Description
Technical Field
The utility model belongs to the technical field of the electron, especially, relate to a novel microphone subassembly and novel microphone.
Background
Microphones are energy conversion devices that convert sound signals into electrical signals, and are classified into coil type, condenser type, electret and silicon micro microphones, and further, liquid microphones and laser microphones.
The traditional moving coil microphone only has a moving coil and does not have a fixed coil (an electromagnetic coil fixedly wound on magnetic steel), and the moving coil only has the transmission performance of medium and low tones, so the low tone performance of the traditional microphone is better, the sound is soft, but the frequency domain is not wide enough, mainly the high-frequency sound is not enough, the sound is not clearly heard, and the performance is not ideal.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel microphone subassembly and novel microphone aims at solving the not wide, the unsatisfactory problem of performance of current moving coil microphone response frequency domain.
An embodiment of the utility model provides a novel microphone subassembly, include: the device comprises a vibrating diaphragm, an electromagnetic coil, a magnet and a piezoelectric sheet; the piezoelectric sheet is fixed on the upper surface of the vibrating diaphragm, and the lower surface of the vibrating diaphragm is provided with a metal magnetic coating; the magnet is positioned below the vibrating diaphragm and has a preset distance with the vibrating diaphragm, and the electromagnetic coil is fixedly wound on the magnet; the metal magnetic coating with solenoid the magnet constitutes electromagnetic vibration system for send bass and mediant, the metal magnetic coating with the piezoelectric patches constitutes high pitch vibration system for send the high pitch.
Furthermore, the piezoelectric plate is fixed on the upper surface of the vibrating diaphragm through evaporation to form a press plating layer.
Further, the metal magnetic coating is a nickel coating.
Further, the novel microphone assembly further comprises: a signal lead; the signal lead is connected with the electromagnetic coil and is connected with the piezoelectric sheet in parallel.
Further, the magnet is cylindrical magnetic steel.
Further, the novel microphone assembly further comprises: a housing; the cylindrical magnetic steel is fixed at the bottom of the shell, and a sound inlet hole is formed in the top of the shell.
Further, the number of turns of the electromagnetic coil is 2100 turns.
The embodiment also provides a novel microphone, which comprises the novel microphone assembly.
From the foregoing the embodiment of the utility model provides a, this novel microphone subassembly includes the vibrating diaphragm, solenoid, magnet and piezoelectric patches, the upper surface at the vibrating diaphragm is fixed to the piezoelectric patches, the lower surface of vibrating diaphragm has metal magnetic coating, the magnet be located the below of vibrating diaphragm and with the vibrating diaphragm between have preset distance, solenoid fixed winding is on the magnet, metal magnetic coating and solenoid, the magnet constitutes electromagnetic vibration system, be used for sending bass and middle-pitched sound, metal magnetic coating constitutes high pitch vibration system with the piezoelectric patches, be used for sending the high pitch, thereby realize wide frequency range transaudient, sound quality is good, high performance.
Drawings
In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
Fig. 1 is a schematic structural diagram of a novel microphone assembly provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an electromagnetic coil and a piezoelectric patch in the novel microphone assembly provided by the embodiment of the present invention;
fig. 3 is a circuit structure diagram of the novel microphone assembly according to an embodiment of the present invention.
Detailed Description
To make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to fig. 3, fig. 1 is a schematic structural diagram of the novel microphone assembly of the present embodiment, and fig. 2 is a schematic structural diagram of an electromagnetic coil and a piezoelectric sheet in the novel microphone assembly of the present embodiment. Fig. 3 is a circuit structure diagram of the novel microphone assembly according to an embodiment of the present invention.
This novel microphone subassembly includes:
a diaphragm 10, an electromagnetic coil 20, a magnet 30, and a piezoelectric sheet 40;
further, the novel microphone assembly further comprises a shell 50, the diaphragm 10 is fixed inside the shell 50, and a sound inlet hole 51 for sound to enter is formed in the top of the shell 50.
The piezoelectric sheet 40 is fixed on the upper surface of the diaphragm 10, and the lower surface of the diaphragm 10 is provided with a metal magnetic coating layer 11;
the magnet 30 is located below the diaphragm 10 and has a predetermined distance from the diaphragm 10, that is, a certain space is provided between the diaphragm 10 and the magnet 30, and the electromagnetic coil 20 is fixedly wound on the magnet 30, wherein the number of turns can achieve 600-2000 ohm impedance, and specifically, the number of turns of the electromagnetic coil with 600-ohm impedance is about 2100 turns. The input impedance matching with 1000 ohms of the existing chip is well realized, the application range is wide, the number of turns of the electromagnetic coil 20 fixedly wound on the magnet 30 is increased, and the influence on the vibration amplitude and the signal strength caused by the increase of the number of turns of the moving coil in the prior art can be avoided;
preferably, the magnet 30 is a cylindrical magnetic steel. The cylindrical magnetic steel is fixed at the bottom of the housing 50.
The metal magnetic plating layer 11, the electromagnetic coil 20 and the magnet 30 form an electromagnetic vibration system for emitting bass and midrange tones, and the metal magnetic plating layer 11 and the piezoelectric sheet 40 form a treble vibration system for emitting treble tones.
Further, the piezoelectric sheet 40 is fixed on the upper surface of the diaphragm 10 by evaporation to form the piezoelectric coating 12. The power consumption of the piezoelectric plate coating is small and light, so that the power consumption of the microphone is greatly reduced.
Preferably, the metal magnetic plating layer is a nickel plating layer.
Further, this novel microphone still includes: a signal lead 60;
the signal lead 60 is connected to the electromagnetic coil 20 and is connected in parallel to the piezoelectric sheet 40.
The working principle of the novel microphone in the embodiment is as follows:
the magnet 30 is located below the diaphragm 10 and has a predetermined distance from the diaphragm 10, and a constant magnetic field gap is formed between the magnet 30 and the nickel plating layer 11 of the diaphragm 10. When the vibrating diaphragm 10 vibrates up and down under the action of external sound pressure, the constant magnetic field generates variable, the variable is transmitted to the electromagnetic coil 20 in a magnetic induction way, induced current is generated in the electromagnetic coil 20, meanwhile, the piezoelectric coating 12 of the vibrating diaphragm 10 also senses the external sound and generates vibration, due to the piezoelectric effect, the piezoelectric coating 12 also generates an electric signal which is the same as an external sound signal, the electric signal is superposed with the electromagnetic signal of the vibrating diaphragm 10 and is output through a signal lead 60, and therefore the working process of sound-electricity conversion of the novel microphone is achieved, wherein the nickel coating 11, the electromagnetic coil 20 and the magnet 30 form an electromagnetic vibration system for emitting bass and middle tones, the nickel coating 11 and the piezoelectric coating 12 form a high-tone vibration system for emitting high tones, and therefore wide-frequency-threshold working is achieved, and the frequency response range can reach 20-20000 Hz.
In this embodiment, novel microphone subassembly includes the vibrating diaphragm, solenoid, magnet and piezoelectric patches, the upper surface at the vibrating diaphragm is fixed to the piezoelectric patches, the lower surface of vibrating diaphragm has metal magnetic coating, the magnet be located the below of vibrating diaphragm and with have preset distance between the vibrating diaphragm, solenoid fixed winding is on the magnet, metal magnetic coating and solenoid, the magnet constitutes electromagnetic vibration system, be used for sending bass and medium pitch, metal magnetic coating constitutes high pitch vibration system with the piezoelectric patches, be used for sending the high pitch, thereby realize wide frequency range sound transmission, sound quality is good, high performance.
The embodiment also provides a novel microphone, which comprises the novel microphone assembly.
Novel microphone in this example, including a novel microphone subassembly, this novel microphone subassembly includes the vibrating diaphragm, solenoid, magnet and piezoelectric patches, the piezoelectric patches is fixed at the upper surface of vibrating diaphragm, the lower surface of vibrating diaphragm has metal magnetic coating, the magnet be located the vibrating diaphragm the below and with the vibrating diaphragm between have preset distance, solenoid fixed winding is on the magnet, metal magnetic coating and solenoid, the magnet constitutes electromagnetic vibration system, be used for sending bass and mediant, metal magnetic coating constitutes high pitch vibration system with the piezoelectric patches, be used for sending the high pitch, thereby realize wide frequency domain and pass, sound quality is good, high performance.
The above is right the utility model provides a novel microphone subassembly and novel microphone's description, to the technical personnel in the field, according to the utility model discloses the thought of embodiment all has the change part on concrete implementation and range of application, to sum up, this specification content should not be understood as right the utility model discloses a restriction.
Claims (8)
1. A novel microphone assembly, comprising:
the device comprises a vibrating diaphragm, an electromagnetic coil, a magnet and a piezoelectric sheet;
the piezoelectric sheet is fixed on the upper surface of the vibrating diaphragm, and the lower surface of the vibrating diaphragm is provided with a metal magnetic coating;
the magnet is positioned below the vibrating diaphragm and has a preset distance with the vibrating diaphragm, and the electromagnetic coil is fixedly wound on the magnet;
the metal magnetic coating with solenoid the magnet constitutes electromagnetic vibration system for send bass and mediant, the metal magnetic coating with the piezoelectric patches constitutes high pitch vibration system for send the high pitch.
2. The novel microphone assembly as claimed in claim 1, wherein the piezoelectric plate is fixed on the upper surface of the diaphragm by evaporation to form a piezoelectric coating.
3. The novel microphone assembly of claim 1 or 2 wherein the metal magnetic coating is a nickel coating.
4. The novel microphone assembly of claim 3 further comprising: a signal lead;
the signal lead is connected with the electromagnetic coil and is connected with the piezoelectric sheet in parallel.
5. The novel microphone assembly of claim 4 wherein the magnet is a cylindrical magnetic steel.
6. The novel microphone assembly of claim 5 further comprising: a housing;
the cylindrical magnetic steel is fixed at the bottom of the shell, and a sound inlet hole is formed in the top of the shell.
7. The novel microphone assembly of claim 6 wherein the electromagnetic coil has 2100 turns.
8. A novel microphone, characterized in that it comprises a novel microphone assembly as claimed in any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022333104.8U CN213403490U (en) | 2020-10-19 | 2020-10-19 | Novel microphone subassembly and novel microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022333104.8U CN213403490U (en) | 2020-10-19 | 2020-10-19 | Novel microphone subassembly and novel microphone |
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| Publication Number | Publication Date |
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| CN213403490U true CN213403490U (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022333104.8U Active CN213403490U (en) | 2020-10-19 | 2020-10-19 | Novel microphone subassembly and novel microphone |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113395631A (en) * | 2021-08-18 | 2021-09-14 | 深圳市微语信息技术开发有限公司 | High-resolution pickup based on magneto-rheological principle and recording method |
| CN117544888A (en) * | 2024-01-09 | 2024-02-09 | 瑞声光电科技(常州)有限公司 | Electromagnetic microphone |
-
2020
- 2020-10-19 CN CN202022333104.8U patent/CN213403490U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113395631A (en) * | 2021-08-18 | 2021-09-14 | 深圳市微语信息技术开发有限公司 | High-resolution pickup based on magneto-rheological principle and recording method |
| CN113395631B (en) * | 2021-08-18 | 2021-11-02 | 深圳市微语信息技术开发有限公司 | High-resolution pickup based on magneto-rheological principle |
| CN117544888A (en) * | 2024-01-09 | 2024-02-09 | 瑞声光电科技(常州)有限公司 | Electromagnetic microphone |
| CN117544888B (en) * | 2024-01-09 | 2024-04-09 | 瑞声光电科技(常州)有限公司 | Electromagnetic microphone |
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