CN220381779U - Electronic harmonica with double channels - Google Patents
Electronic harmonica with double channels Download PDFInfo
- Publication number
- CN220381779U CN220381779U CN202321995650.5U CN202321995650U CN220381779U CN 220381779 U CN220381779 U CN 220381779U CN 202321995650 U CN202321995650 U CN 202321995650U CN 220381779 U CN220381779 U CN 220381779U
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- CN
- China
- Prior art keywords
- air
- air pressure
- air flow
- cavity
- channel
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- 238000007664 blowing Methods 0.000 claims abstract description 53
- 238000004140 cleaning Methods 0.000 abstract description 6
- 206010003497 Asphyxia Diseases 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000002209 hydrophobic effect Effects 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
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- Electrophonic Musical Instruments (AREA)
Abstract
The utility model relates to the technical field of musical instruments, in particular to an electronic mouth organ with two channels, which comprises a blowing nozzle, an air cavity, an air pressure sensor, an air pressure channel and an air flow channel, wherein the air pressure sensor is positioned in the air cavity and is used for detecting air pressure change in the air cavity, the air pressure channel is positioned between the blowing nozzle and the air cavity and is communicated with the blowing nozzle and is not communicated with the air pressure channel, and the air flow channel is used for exhausting air flow; the utility model uses the air pressure channel to trigger the air pressure sensor, and the air flow channel discharges redundant air flow, so that the air flow can be kept smooth to avoid generating suffocation, and a large amount of moisture can be prevented from being left in the mouth organ, and the sanitary cleaning work of the interior is reduced.
Description
Technical Field
The utility model relates to the technical field of musical instruments, in particular to an electronic harmonica with double channels.
Background
The mouth organ is a small-sized wind instrument, which uses mouth to blow or inhale to change the air pressure in the air inlet channel, and the air pressure sensor on the circuit board detects the air pressure in the air inlet channel and converts the air pressure signal into audio signal.
The lip attaches on the blowing nozzle in current harmonica, and in blowing all got into the air inlet channel through the blowing nozzle, the inside gas that gets into the harmonica is too much leads to inside easy hygienic problem, and blows all to get into the air inlet channel and come not to discharge and appear holding down breath easily.
Disclosure of Invention
The utility model aims to solve the technical problems that: in order to solve the problems that in the prior art, lips are attached to a blowing nozzle, blowing air completely enters an air inlet channel through the blowing nozzle, and excessive air entering the mouth organ easily causes sanitation problems in the mouth organ, and the blowing air is not discharged until reaching the air inlet channel, so that the mouth organ is easy to feel suffocated.
In order to solve the technical problems, the utility model adopts the following technical scheme: a harmonica with two channels, comprising:
a blowing nozzle;
the air cavity is positioned inside the harmonica shell;
the air pressure sensor is positioned in the air cavity and used for detecting air pressure change in the air cavity;
the air pressure channel is positioned between the blowing nozzle and the air cavity and is communicated with the blowing nozzle and the air cavity in sequence;
and the air flow channel is communicated with the blowing nozzle and is not communicated with the air pressure channel, and is used for exhausting air flow.
When the lips are attached to the mouthpiece for playing, the air blows into the mouthpiece, a part of air flow enters the air cavity through the air pressure channel to trigger the air pressure sensor, the air pressure sensor detects the air pressure change and converts the air pressure change into an air pressure signal, the air pressure signal is transmitted to the sounding unit through the calculation of the controller, the harmonica is enabled to emit musical sounds with corresponding loudness and frequency, the other part of air flow is timely discharged through the air flow channel, the air flow can be kept smooth, the generation of air holding is avoided, a large amount of moisture can be prevented from being remained inside the harmonica, and the sanitation cleaning work inside the harmonica is reduced.
According to the technical scheme, the air pressure channel is used for triggering the air pressure sensor, the air flow channel discharges redundant air flow, so that the air flow can be kept smooth, the generation of suffocating is avoided, a large amount of moisture can be prevented from being left in the harmonica, and the sanitary cleaning work in the harmonica is reduced.
Further, the blowing nozzle comprises an air pressure blowing nozzle communicated with the air pressure channel and an air flow blowing nozzle communicated with the air flow channel, the air pressure blowing nozzle and the air flow blowing nozzle are distributed in parallel up and down, a transverse bar is arranged between the air pressure blowing nozzle and the air flow blowing nozzle, the depth of the transverse bar is slightly smaller than that of the blowing nozzle, the transverse bar isolates the air pressure blowing nozzle from the air flow blowing nozzle, and the air flow can be prevented from being strung to the air pressure channel to the greatest extent to cause mispronounced sound.
Further, the air flow mouthpiece is provided with an opening communicated with the air flow channel, air flows into the air flow channel through the opening and is discharged, water vapor carried in the air flow can be discharged through the opening, a large amount of water is prevented from being left in the harmonica, and adjacent air flow mouthpieces are communicated with each other through the opening.
Further, the inside first diaphragm that is equipped with of air cavity, first diaphragm divide into upper chamber and lower chamber with the air cavity, air pressure sensor is located the upper chamber inside and fixes on the PCB board, lower chamber and atmospheric pressure passageway intercommunication, first diaphragm are hydrophobic ventilated membrane, and when the air current of atmospheric pressure passageway got into down the chamber and reachd first diaphragm, steam was blocked, and the atmospheric pressure that the air current produced can be detected by air pressure sensor by first diaphragm to can avoid steam to damage air pressure sensor.
Further, the casing includes the main part and fixes the front bezel at the main part front side, and both enclose and close and form above-mentioned atmospheric pressure passageway and air current passageway, the blowing nozzle is located the front bezel, and is equipped with the second diaphragm between front bezel and the main part, and the second diaphragm can block steam for hydrophobic ventilated membrane, avoids a large amount of steam to get into the harmonica inside and leads to the clearance difficulty.
Further, the air pressure channel comprises a small-diameter section and two large-diameter sections positioned on two sides of the second diaphragm.
Further, a recess is formed in one side, close to the front plate, of the main body, and the recess and the front plate enclose a containing cavity for placing the second diaphragm.
The utility model has the beneficial effects that: the utility model uses the air pressure channel to trigger the air pressure sensor, and the air flow channel discharges redundant air flow, so that the air flow can be kept smooth to avoid generating suffocation, and a large amount of moisture can be prevented from being left in the mouth organ, and the sanitary cleaning work of the interior is reduced.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a three-dimensional schematic of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a cross-sectional view of the present utility model;
FIG. 4 is an exploded view of the present utility model;
FIG. 5 is a cross-sectional view of the front plate;
in the figure:
1. a housing; 101. a main body; 1011. a recess; 102. a front plate; 2. a blowing nozzle; 201. an air pressure mouthpiece; 202. an air flow mouthpiece; 2021. an opening; 3. an air cavity; 4. an air pressure sensor; 5. an air pressure channel; 501. a small diameter section; 502. a large diameter section; 6. an air flow channel; 7. a rail; 8. a first diaphragm; 9. a second diaphragm; 10. and a PCB board.
Detailed Description
As shown in fig. 1-5, the utility model is an electronic harmonica with two channels, comprising a shell 1, wherein a plurality of blowing nozzles 2 are arranged on the shell 1, a corresponding number of air cavities 3 are arranged in the shell 1, and each air cavity 3 is internally provided with an air pressure sensor 4 for detecting the air pressure change in the air cavity 3;
the shell 1 comprises a main body 101 and a front plate 102 fixed on the front side of the main body 101, an air pressure channel 5 and an air flow channel 6 are formed by encircling the main body 101 and the front plate, the blowing nozzle 2 is arranged on the front plate 102, the air pressure channel 5 is arranged between the blowing nozzle 2 and the air cavity 3 and is sequentially communicated with the air cavity 3, the air cavity 3 is only provided with an opening communicated with the air pressure channel 5, the rest part is a sealing structure, the sealing structure enables the change of blowing and sucking air pressure to be easily acted on the air pressure sensor 4, the sensitivity of blowing and sucking is greatly improved, a user can blow and sound the harmonica very easily, the air pressure of blowing and sucking the harmonica can be greatly saved, and the sealing structure enables the harmonica to be miniaturized. No special air flow guiding structure and complex air suction structure are needed, and the design is simple and convenient, and the processing and the production are convenient. The air flow channel 6 communicates with the mouthpiece 2 and is not in communication with the air pressure channel 5 for exhausting the air flow.
The blowing nozzle 2 comprises an air pressure blowing opening 201 communicated with the air pressure channel 5 and an air flow blowing opening 202 communicated with the air flow channel 6, wherein the air pressure blowing opening 201 and the air flow blowing opening 202 are distributed in parallel up and down, a transverse baffle 7 is arranged between the air pressure blowing opening 201 and the air flow blowing opening 202, the depth of the transverse baffle 7 is slightly smaller than that of the blowing nozzle 2, the transverse baffle 7 isolates the air pressure blowing opening 201 from the air flow blowing opening 202, and air flow can be prevented from being strung to the air pressure channel 5 to the greatest extent to cause mispronounced sound.
The airflow mouthpiece 202 has an opening 2021 communicating with the airflow channel 6, the airflow enters the airflow channel 6 through the opening 2021 and is discharged, the water vapor carried in the airflow can be discharged through the opening 2021, so as to prevent a large amount of moisture from remaining in the mouth organ, and adjacent airflow mouthpieces 202 are mutually communicated through the opening 2021.
The inside first diaphragm 8 that is equipped with of air cavity 3, first diaphragm 8 divide into upper chamber and lower chamber with air cavity 3, air pressure sensor 4 is located the upper chamber inside and fixes on PCB board 10, lower chamber and air pressure passageway 5 intercommunication, first diaphragm 8 are hydrophobic ventilated membrane, when air current of air pressure passageway 5 gets into the lower chamber and reachs first diaphragm 8, steam is blocked, the atmospheric pressure that the air current produced can see through first diaphragm 8 by air pressure sensor 4 to can avoid steam to damage air pressure sensor 4, air pressure passageway 5 includes small diameter section 501 and is located two big diameter sections 502 of second diaphragm 9 both sides.
The second diaphragm 9 is arranged between the front plate 102 and the main body 101, the second diaphragm 9 is a hydrophobic and breathable film and can block water vapor, cleaning difficulty caused by a large amount of water vapor entering the harmonica is avoided, one side of the main body 101, which is close to the front plate 102, is provided with a concave 1011, and the concave 1011 and the front plate 102 are enclosed to form a containing cavity for placing the second diaphragm 9.
Working principle:
when the lips are attached to the mouthpiece 2 for playing, the air blows enter the mouthpiece 2, a part of air flow enters the air cavity 3 through the air pressure channel 5 to trigger the air pressure sensor 4, the air pressure sensor 4 detects air pressure change and converts the air pressure change into air pressure signals, the air pressure signals are transmitted to the sounding unit through the calculation of the controller, the harmonica is enabled to emit musical sounds with corresponding loudness and frequency, the other part of air flow is timely discharged through the air flow channel 6, the air flow can be kept smooth, the generation of suffocating can be avoided, a large amount of moisture can be prevented from being remained inside the harmonica, and the sanitary cleaning work inside the harmonica is reduced.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (7)
1. An electronic harmonica with two channels, which is characterized in that: comprising the following steps:
a mouthpiece (2);
the air cavity (3) is positioned inside the harmonica shell (1);
the air pressure sensor (4) is positioned inside the air cavity (3) and is used for detecting air pressure change inside the air cavity (3);
the air pressure channel (5) is positioned between the blowing nozzle (2) and the air cavity (3) and is communicated with the blowing nozzle, the air cavity and the air cavity in sequence;
and the air flow channel (6) is communicated with the blowing nozzle (2) and is not communicated with the air pressure channel (5) for exhausting air flow.
2. The electronic harmonica with two channels according to claim 1, characterized in that: the blowing nozzle (2) comprises an air pressure blowing opening (201) communicated with the air pressure channel (5) and an air flow blowing opening (202) communicated with the air flow channel (6), wherein the air pressure blowing opening (201) and the air flow blowing opening (202) are distributed in parallel up and down, and a transverse baffle (7) is arranged between the air pressure blowing opening and the air flow blowing opening.
3. The electronic harmonica with two channels according to claim 2, characterized in that: the air flow mouthpiece (202) has an opening (2021) communicating with the air flow channel (6), and adjacent air flow mouths (202) communicate with each other through the opening (2021).
4. The electronic harmonica with two channels according to claim 1, characterized in that: the air cavity (3) is internally provided with a first diaphragm (8), the first diaphragm (8) divides the air cavity (3) into an upper cavity and a lower cavity, the air pressure sensor (4) is positioned in the upper cavity and fixed on the PCB (10), and the lower cavity is communicated with the air pressure channel (5).
5. The electronic harmonica with two channels according to claim 1, characterized in that: the shell (1) comprises a main body (101) and a front plate (102) fixed on the front side of the main body (101), the main body (101) and the front plate are enclosed to form the air pressure channel (5) and the air flow channel (6), the blowing nozzle (2) is positioned on the front plate (102), and a second diaphragm (9) is arranged between the front plate (102) and the main body (101).
6. The electronic harmonica with two channels according to claim 5, characterized in that: the air pressure channel (5) comprises small-diameter sections (501) and large-diameter sections (502) positioned on two sides of the second diaphragm (9).
7. The electronic harmonica with two channels according to claim 5, characterized in that: the main body (101) is provided with a concave (1011) at one side close to the front plate (102), and the concave (1011) and the front plate (102) are enclosed to form a containing cavity for placing the second diaphragm (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321995650.5U CN220381779U (en) | 2023-07-27 | 2023-07-27 | Electronic harmonica with double channels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321995650.5U CN220381779U (en) | 2023-07-27 | 2023-07-27 | Electronic harmonica with double channels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220381779U true CN220381779U (en) | 2024-01-23 |
Family
ID=89572814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321995650.5U Active CN220381779U (en) | 2023-07-27 | 2023-07-27 | Electronic harmonica with double channels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220381779U (en) |
-
2023
- 2023-07-27 CN CN202321995650.5U patent/CN220381779U/en active Active
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