CN219420973U - Sound microphone with phase inverter tube - Google Patents
Sound microphone with phase inverter tube Download PDFInfo
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- CN219420973U CN219420973U CN202320260338.5U CN202320260338U CN219420973U CN 219420973 U CN219420973 U CN 219420973U CN 202320260338 U CN202320260338 U CN 202320260338U CN 219420973 U CN219420973 U CN 219420973U
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- loudspeaker
- phase inversion
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- speaker
- tube
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses an acoustic microphone with a phase inversion tube, which comprises: the loudspeaker box comprises a loudspeaker box shell, a microphone arranged at the upper end of the loudspeaker box shell and a handle arranged at the lower end of the loudspeaker box shell, wherein batteries are arranged in the handle, a first loudspeaker and a second loudspeaker are symmetrically arranged on two sides of the loudspeaker box shell, a third loudspeaker is further arranged on one side of the loudspeaker box shell in the vertical direction of a connecting line between the first loudspeaker and the second loudspeaker, a main control circuit board is arranged on the outer side of the loudspeaker box shell on the other side, a display screen and a control key set are arranged corresponding to the main control circuit board, at least one phase inversion tube is arranged in the loudspeaker box shell, one end of the phase inversion tube is communicated with a sound cavity in the loudspeaker box shell, and the other end of the phase inversion tube is communicated with a plurality of exhaust holes arranged on the loudspeaker box shell. The loudspeaker can eliminate low-frequency crosstalk and low-frequency resonance generated in the loudspeaker box due to the symmetrical arrangement, howling and low-frequency distortion are avoided, and therefore the tone quality is optimized, and user experience is improved.
Description
Technical Field
The utility model relates to the technical field of acoustic microphones with phase inversion tubes, in particular to an acoustic microphone with phase inversion tubes.
Background
In order to adapt to live broadcasting and live performance of outdoor ground scenes, the existing live broadcasting microphone is often used by being matched with an external loudspeaker box or other equipment; therefore, the applicant provides a microphone audio amplifier integrative equipment, is in including control unit, main part sound chamber and connection microphone subassembly on the main part sound chamber, install at least two speakers that the symmetry set up in the main part sound chamber, microphone subassembly includes microphone and microphone mount pad, the microphone reaches the speaker respectively with the control unit electricity is connected. Through the structural design of speaker and microphone, can make microphone and audio amplifier unite two into one under the condition that does not change and promote tone quality even, accomplish portably small and exquisite, have direct karaoke effect again, let people can enjoy singing anytime and anywhere, enjoy the enjoyment that the music brought.
In addition, because the main sound cavity and the microphone are too close to each other, sound waves of the sound cavity are transmitted to the microphone through the structure and air vibration, and howling and low-frequency distortion are easy to occur. Therefore, there is a need for further optimizing the existing acoustic microphone structure with inverter tubes, optimizing sound quality and improving user experience.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an acoustic microphone with a phase inversion tube, which can effectively improve the tone quality and the user experience.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
an acoustic microphone having a phase inverter tube, comprising: the loudspeaker box comprises a loudspeaker box shell, a microphone arranged at the upper end of the loudspeaker box shell and a handle arranged at the lower end of the loudspeaker box shell, wherein a battery is arranged in the handle, a first loudspeaker and a second loudspeaker are symmetrically arranged on two sides of the loudspeaker box shell, a third loudspeaker is further arranged on one side of the loudspeaker box shell in the vertical direction of a connecting line of the first loudspeaker and the second loudspeaker, a main control circuit board and a control key group are arranged on the outer side of the loudspeaker box shell and correspond to the main control circuit board, at least one phase inversion tube is arranged in the loudspeaker box shell, one end of the phase inversion tube is communicated with a sound cavity in the loudspeaker box shell, and the other end of the phase inversion tube is communicated with an exhaust hole arranged on the loudspeaker box shell.
Further, the sound box shell comprises a sound box front shell body and a sound box rear shell body, wherein the two sides of the sound box front shell body are symmetrically provided with a first mounting hole and a second mounting hole, a third mounting hole is formed in the sound box front shell body and is perpendicular to the connecting line of the first mounting hole and the second mounting hole, and the first loudspeaker, the second loudspeaker and the third loudspeaker are arranged in the first mounting hole, the second mounting hole and the third mounting hole.
Optionally, the first speaker and the second speaker face two directions respectively, the phase inversion tube is arranged in a sound cavity space between the rear of the first speaker and the rear of the second speaker, and an included angle between the first speaker and the second speaker is 45-180 degrees.
Optionally, a side hole plate is arranged on the sound box shell corresponding to the first speaker, the second speaker and the third speaker.
Specifically, the handle comprises handle procapsid, handle back casing the battery sets up the handle procapsid with in the handle back casing, the handle procapsid the handle back casing lower extreme is provided with the end cover body, the upper end respectively with the audio amplifier procapsid the audio amplifier back casing is connected or integrated into one piece.
Further, the microphone is arranged at the upper end of the sound box shell through a microphone mounting seat, and a microphone protective cover is arranged corresponding to the microphone.
Specifically, the sound box rear shell one side with the sound box front shell forms the sound chamber, and the opposite side is provided with master control circuit board, panel, correspond on the panel master control circuit board is provided with the display screen with control button group.
Further, the phase inversion tube is of a tubular structure made of plastic, silica gel or rubber, a plurality of mounting blocks are arranged on the outer wall of the phase inversion tube, the phase inversion tube is fixed between the first loudspeaker and the second loudspeaker through the mounting blocks, one end of the phase inversion tube is communicated with the sound cavity, and the other end of the phase inversion tube is communicated with the exhaust hole.
Further, the front side or the rear side of the sound box shell is provided with the exhaust hole communicated with the outside, one end of the phase inversion tube is communicated with the sound cavity, one end of the phase inversion tube is provided with the inverted connection seat, and the phase inversion tube is communicated with the exhaust hole through the inverted connection seat.
Further, a phase inversion sound cavity is formed in the sound box shell through a phase inversion sound cavity shell on one side of the sound box shell, a plurality of exhaust holes formed in the sound box shell are communicated with the phase inversion sound cavity, and the other end of the phase inversion tube is communicated with the phase inversion sound cavity.
By adopting the technical scheme, the stereo microphone with the phase inversion tube has more remarkable stereo effect and has the functions of adjusting high, low, reverberation and accompaniment intensity, the phase inversion tube is arranged, so that the vibration of a sound cavity can be greatly reduced, the self-excitation resistance of the microphone is improved, the self-excitation generated by the loudspeaker and the microphone can be overcome to the maximum extent, the low-frequency crosstalk and low-frequency resonance generated in the loudspeaker due to the symmetrically arranged loudspeakers can be eliminated, howling and low-frequency distortion are avoided, the effect of enhancing the bass can be achieved, the low-frequency sound does not have directivity, the phase of a sound field is changed by the phase inversion tube, the resonance effect is generated by pushing airflow by the loudspeakers, the low-frequency sound can have depth and loudness, the tone quality is optimized, and the user experience is improved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a three-dimensional block diagram of an acoustic microphone having a phase inversion tube according to the present utility model;
FIG. 2 is a three-dimensional exploded view of a first acoustic microphone with inverter tubes according to the present utility model;
FIG. 3 is a diagram showing a first exploded three-dimensional structure of an acoustic microphone with a phase inverter tube according to the present utility model;
FIG. 4 is a three-dimensional block diagram of a first inverter tube of the present utility model;
FIG. 5 is a three-dimensional exploded view of a second acoustic microphone having a phase inverter tube according to the present utility model;
FIG. 6 is a three-dimensional block diagram of a second inverter tube of the present utility model;
in the figure, 1-sound box shell, 101-sound box front shell, 102-sound box rear shell, 103-first mounting hole, 104-second mounting hole, 105-third mounting hole and 106-exhaust hole; 2-handle, 201-handle front housing, 202-handle rear housing; 3-microphone, 4-microphone mount pad, 5-microphone shield, 6-battery, 7-end cover, 8-first speaker, 9-second speaker, 10-third speaker, 11-inverter tube, 111-mounting block, 112-reverse connection mount pad; 12-phase inversion sound cavity shell, 13-main control circuit board, 14-panel, 15-display screen, 16-control key group and 17-side hole plate.
Detailed Description
The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
Example 1
As shown in fig. 1-3, an embodiment of the present utility model provides an acoustic microphone having a phase inversion tube, comprising: the loudspeaker box comprises a loudspeaker box shell 1, a microphone 3 arranged at the upper end of the loudspeaker box shell 1 and a handle 2 arranged at the lower end of the loudspeaker box shell 1, wherein a battery 6 is arranged in the handle 2, a first loudspeaker 8 and a second loudspeaker 9 are symmetrically arranged on two sides of the loudspeaker box shell 1, a third loudspeaker 10 is further arranged on one side of the loudspeaker box shell 1 in the vertical direction of a connecting line of the first loudspeaker 8 and the second loudspeaker 9, a main control circuit board 13 is arranged on the outer side of the loudspeaker box shell 1 on the other side of the loudspeaker box shell, a display screen 15 and a control key group 16 are arranged corresponding to the main control circuit board 13, at least one phase-reversing tube 11 is arranged in the loudspeaker box shell 1, one end of the phase-reversing tube 11 is communicated with a sound cavity in the loudspeaker box shell 1, and the other end of the phase-reversing tube 11 is communicated with an exhaust hole 106 arranged on the loudspeaker box shell 1.
As shown in fig. 2 and 3, the speaker box casing 1 is composed of a speaker box front casing 101 and a speaker box rear casing 102, a first mounting hole 103 and a second mounting hole 104 are symmetrically formed on two sides of the speaker box front casing 101, a third mounting hole 105 is formed on one side of the speaker box front casing 102 in a direction perpendicular to a connecting line of the first mounting hole 103 and the second mounting hole 104, and the first speaker 8, the second speaker 9 and the third speaker 10 are disposed in the first mounting hole 103, the second mounting hole 104 and the third mounting hole 105. Optionally, the first speaker 8 and the second speaker 9 face two directions respectively, the inverter tube 11 is disposed in a sound cavity space between the rear of the first speaker 8 and the rear of the second speaker 9, and an included angle between the first speaker 8 and the second speaker 9 is 45-180 degrees;
optionally, a side hole plate 17 is disposed on the enclosure 1 corresponding to the first speaker 8, the second speaker 9, and the third speaker 10.
As shown in fig. 2 and 3, the handle 2 is composed of a front handle housing 201 and a rear handle housing 202, the battery 6 is disposed in the front handle housing 201 and the rear handle housing 202, the front handle housing 201 and the rear handle housing 202 are provided with end caps 7 at their lower ends, and their upper ends are respectively connected to the front speaker housing 101 and the rear speaker housing 102 or integrally formed.
The microphone 3 is arranged at the upper end of the sound box shell 1 through a microphone mounting seat 4, and a microphone protective cover 5 is arranged corresponding to the microphone 3.
Specifically, one side of the rear enclosure 102 of the sound box and the front enclosure 101 of the sound box form a sound cavity, the other side is provided with the main control circuit board 13 and the panel 14, and the panel 14 is provided with the display 15 and the control key set 16 corresponding to the main control circuit board 13.
As shown in fig. 4, the inverter tube 11 is a tubular structure made of plastic, silica gel or rubber, a plurality of mounting blocks 111 are arranged on the outer wall of the inverter tube 11, and the inverter tube 11 is fixed between the first speaker 8 and the second speaker 9 through the mounting blocks 111, so that one end of the inverter tube 11 is communicated with the sound cavity, and the other end is communicated with the air vent hole 106.
The cross section of the inverter tube 11 may be various shapes such as a circle, a rectangle, an ellipse, a polygon, etc.; the inverter tube 11 is a variable cross-section shaped inverter tube, and the cross-section size may be constant, continuous or irregularly variable. The inverter tube 11 is a physical measure for superposing a low-frequency reverse wave and a positive wave to increase the bass intensity; the inverter tube may be straight or curved and folded because of weak directivity of the bass sound.
As shown in fig. 5, the front side or the rear side of the sound box shell 1 is provided with the vent hole 106 communicated with the outside, one end of the phase inversion pipe 11 is communicated with the sound cavity, one end of the phase inversion pipe 11 is provided with a reverse connection seat 112, and the phase inversion pipe 11 is communicated with the vent hole 106 through the phase inversion connection seat 112. As shown in fig. 6, a vent hole 106 is provided below the third speaker 10, the cross section of the inverter tube 11 continuously increases from the sound cavity end to the inverter connector 112 end, and the cross section of the inverter tube 11 is circular to elliptical in coupling transition around the solid space curve.
As shown in fig. 2 and 3, a phase inversion sound cavity is formed in the sound box housing 1 at one side thereof through a phase inversion sound cavity housing 12, a plurality of air vents 106 provided in the sound box housing 1 are communicated with the phase inversion sound cavity, and the other end of the phase inversion pipe 11 is communicated with the phase inversion sound cavity. Specifically, one end of the inverter tube 11 is provided with an inverted connection socket 112, and the inverted connection socket 112 is fixed to the inverter sound chamber housing 12. The inverter boxes are usually single-stage resonant boxes, and each of the inverter boxes has only one resonant cavity, and although there may be a plurality of inverter tubes, the resonant waves output from each of the inverter tubes have only one common resonant frequency band, i.e., a single peak centered on the resonant frequency. If a plurality of inverter tubes are arranged on one sound box, the optimal state is difficult to debug. If a first-stage resonant cavity and a phase inverter tube are added in series, a second-stage phase inverter box is formed.
Inverter tubes, also called reflector tubes, are a type of playback device. The ordinary phase-reversing type loudspeaker box has the loudspeaker diaphragm exposed to the outside to sound, and the rear of the loudspeaker also has vibration, if the rear vibration of the loudspeaker is utilized, the sound wave is enhanced, the heavy bass is enhanced, after the phase-reversing tube is installed, the diameter of the phase-reversing tube is smaller than that of the loudspeaker, so that stronger sound waves are punched out from the phase-reversing tube, and therefore, the sound waves of the loudspeaker in the front and the rear are utilized, and the sound quality of the loudspeaker box is improved. The inverter tube should be mounted on the back plate and be as far away from the woofer as possible, so that the output of the low frequency resonance wave is not affected, and the influence of the harmful sound wave in the cabinet on the front audience can be reduced.
Each loudspeaker has an individual resonance frequency point which, when present in the electrical signal, causes the loudspeaker to resonate, resulting in increased distortion. If the resonant frequency band of the resonant cavity is adjusted to be the same as the resonant frequency band of a loudspeaker in the sound box, when the resonant frequency band signal appears in the electric signal, the loudspeaker and the resonant cavity resonate simultaneously, one end of the resonant wave is a vibrating diaphragm, the other end is a box wall and a phase inversion tube, the resonant wave in the box is compressed or expanded at the same frequency, the box plate with low strength also vibrates along with the vibrating diaphragm, an air layer in the phase inversion tube and the vibrating diaphragm vibrate inwards or outwards simultaneously, the sound wave with the same frequency and the same phase is radiated, and at the moment, the radiation impedance of the vibrating diaphragm increases greatly compared with that of the vibration diaphragm without resonance, so that distortion is correspondingly reduced. When the electric signal has no resonance frequency band, resonance stops, and the phase inversion tube forms a microphone, the outgoing sound wave is a harmful sound wave, and the definition of the sound is negatively influenced.
The phase inversion pipe can be clean than the existing bass part on the tone quality of the vibrating diaphragm, the bass is powerfully gathered and not diverged on the hearing, the bass with the vibrating diaphragm cavity is not clear, the medium-frequency part clearly transmits the thoroughly released sound, and the high-frequency layering penetrating power is strong.
Optionally, a DSP processor is integrally disposed in the main control circuit board 13, and a mixing processing module, a data storage device and a wireless communication module connected with the DSP processor are provided. Specifically, the wireless communication module comprises at least one of an FM transceiver, an UHF transceiver, a Bluetooth communication module and a WiFi communication device. Specifically, the WiFi communication device is a 2.4G wireless module and/or a 5G WiFi communication module.
Optionally, an audio interface and a USB interface are correspondingly arranged on one side of the main control circuit board 13; the USB interface may be a micro-USB interface or a TYPE-C interface. A charging circuit board connected with the battery and a charging interface are arranged in the end cover body 7.
The three loudspeakers are designed, the stereo effect is more obvious, the stereo microphone has the functions of regulating the intensity of high, low, reverberation and accompaniment, the vibration of the sound cavity can be greatly reduced by arranging the phase-reversing tube, the self-excitation resistance of the microphone is improved, the self-excitation generated by the loudspeaker box and the microphone can be overcome to the maximum extent, the low-audio crosstalk and low-frequency resonance generated in the loudspeaker box by symmetrically arranged loudspeakers can be eliminated, the howling and low-frequency distortion are avoided, the bass enhancing effect can be achieved, the low-frequency sound does not have directivity, the phase of the sound field and the airflow generated by pushing of the loudspeakers by the phase-reversing tube are changed, the depth and the loudness of the low-frequency sound can be more improved, the tone quality optimizing effect is achieved, and the user experience is improved.
The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.
Claims (10)
1. An acoustic microphone having a phase inversion tube, comprising: the loudspeaker box comprises a loudspeaker box shell, a microphone arranged at the upper end of the loudspeaker box shell and a handle arranged at the lower end of the loudspeaker box shell, wherein a battery is arranged in the handle, a first loudspeaker and a second loudspeaker are symmetrically arranged on two sides of the loudspeaker box shell, a third loudspeaker is further arranged on one side of the loudspeaker box shell in the vertical direction of a connecting line of the first loudspeaker and the second loudspeaker, a main control circuit board and a control key group are arranged on the outer side of the loudspeaker box shell and correspond to the main control circuit board, at least one phase inversion tube is arranged in the loudspeaker box shell, one end of the phase inversion tube is communicated with a sound cavity in the loudspeaker box shell, and the other end of the phase inversion tube is communicated with an exhaust hole arranged on the loudspeaker box shell.
2. The acoustic microphone with the inverter tube according to claim 1, wherein the sound box housing is composed of a sound box front housing and a sound box rear housing, the sound box front housing is symmetrically provided with a first mounting hole and a second mounting hole, a third mounting hole is formed in the sound box front housing on one side perpendicular to a connecting line of the first mounting hole and the second mounting hole, and the first speaker, the second speaker and the third speaker are arranged in the first mounting hole, the second mounting hole and the third mounting hole.
3. The acoustic microphone with inverter tube of claim 2, wherein the first speaker and the second speaker are respectively oriented in two directions, the inverter tube is disposed in a sound cavity space between a rear of the first speaker and a rear of the second speaker, and an included angle between the first speaker and the second speaker is 45-180 degrees.
4. The acoustic microphone with inverter tube according to claim 1, wherein a side aperture plate is provided on the cabinet corresponding to the first speaker, the second speaker, and the third speaker.
5. The acoustic microphone with the inverter tube according to claim 2, wherein the handle is composed of a handle front housing and a handle rear housing, the battery is arranged in the handle front housing and the handle rear housing, the lower ends of the handle front housing and the handle rear housing are provided with end cover bodies, and the upper ends of the handle front housing and the handle rear housing are respectively connected with the sound box front housing and the sound box rear housing or integrally formed.
6. The acoustic microphone with inverter tube of claim 1, wherein the microphone is disposed at an upper end of the sound box housing through a microphone mount, and a microphone boot is disposed corresponding to the microphone.
7. The acoustic microphone with inverter tube according to claim 2, wherein one side of the rear enclosure of the sound box and the front enclosure of the sound box form a sound cavity, the other side of the rear enclosure of the sound box is provided with the main control circuit board and a panel, and the panel is provided with the display screen and the control key set corresponding to the main control circuit board.
8. The acoustic microphone with a phase inverter tube according to claim 1, wherein the phase inverter tube is a tubular structure made of plastic, silica gel or rubber, and a plurality of mounting blocks are provided on an outer wall of the phase inverter tube, and the phase inverter tube is fixed between the first speaker and the second speaker by the mounting blocks such that one end of the phase inverter tube is communicated with the sound cavity and the other end is communicated with the air vent.
9. The acoustic microphone with a phase inversion tube according to claim 8, wherein the vent hole communicating with the outside is provided on the front side or the rear side of the cabinet, one end of the phase inversion tube communicates with the sound cavity, one end of the phase inversion tube is provided with a phase inversion connection socket, and the phase inversion tube communicates with the vent hole through the phase inversion socket.
10. The acoustic microphone with a phase inversion tube according to claim 8, wherein a phase inversion sound chamber is formed in said sound box housing at one side thereof by a phase inversion sound chamber housing, said vent hole is communicated with said phase inversion sound chamber, and the other end of said phase inversion tube is communicated with said phase inversion sound chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320260338.5U CN219420973U (en) | 2023-02-09 | 2023-02-09 | Sound microphone with phase inverter tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320260338.5U CN219420973U (en) | 2023-02-09 | 2023-02-09 | Sound microphone with phase inverter tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219420973U true CN219420973U (en) | 2023-07-25 |
Family
ID=87203975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320260338.5U Active CN219420973U (en) | 2023-02-09 | 2023-02-09 | Sound microphone with phase inverter tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219420973U (en) |
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2023
- 2023-02-09 CN CN202320260338.5U patent/CN219420973U/en active Active
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