CN211181636U - Piezoelectric type converter - Google Patents
Piezoelectric type converter Download PDFInfo
- Publication number
- CN211181636U CN211181636U CN201921588867.8U CN201921588867U CN211181636U CN 211181636 U CN211181636 U CN 211181636U CN 201921588867 U CN201921588867 U CN 201921588867U CN 211181636 U CN211181636 U CN 211181636U
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- CN
- China
- Prior art keywords
- cavity
- sounding
- piezoelectric
- cylindrical groove
- pronunciation
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
The utility model relates to the field of pronunciation equipment, in particular to a converter, especially a piezoelectric converter, which comprises a piezoelectric converter body, wherein a cylindrical groove is arranged on the upper end surface of the piezoelectric converter body, a pronunciation opening is arranged on the bottom surface of the cylindrical groove, the pronunciation opening is a circular ring surface protruding towards the pronunciation direction, and the center of the pronunciation opening coincides with the circle center of the bottom surface of the cylindrical groove; the sounding cavity is formed in the lower portion of the cylindrical groove, a piezoelectric ceramic piece is arranged in the sounding cavity, and the piezoelectric ceramic piece divides the sounding cavity into a first cavity and a second cavity. The utility model provides a pair of piezoelectric type converter has improved the acoustic pressure, gives off sound to around, is convenient for report to the police effectively.
Description
Technical Field
The utility model relates to a pronunciation equipment field, concretely relates to converter, especially a piezoelectric type formula converter.
Background
The converter English translation is a transducer, which is also known as a buzzer. The buzzer is an electronic buzzer with an integrated structure, adopts alternating voltage for power supply, and is widely applied to electronic products such as computers, printers, copiers, alarms, electronic toys, automobile electronic equipment, telephones, timers and the like as sounding devices. The buzzer is mainly divided into two types, namely a piezoelectric buzzer and an electromagnetic buzzer. The piezoelectric buzzer is an electroacoustic transducer, also called piezoelectric transducer, and is generally circular, and the sounding opening is mostly arranged on the upper end surface. Because the piezoelectric transducer is widely applied to the alarming and sounding purposes of various electric products, the problems that the sound pressure is improved, and the effective alarming is convenient are urgently needed to be solved by the company at present.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: because the piezoelectric transducer is widely applied to the alarming and sounding purposes of various electric products, the problems that the sound pressure is improved, and the effective alarming is convenient are urgently needed to be solved by the company at present.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pair of piezoelectric type converter, including piezoelectric type converter body, cylindrical recess has been seted up to piezoelectric type converter body up end, cylindrical recess bottom surface is provided with pronunciation mouth, pronunciation mouth is to the convex torus of pronunciation direction, pronunciation mouth the center with the centre of a circle coincidence of cylindrical recess bottom surface.
The piezoelectric transducer is usually circular, and the sounding port is mostly arranged on the upper end surface, when the piezoelectric transducer is installed in an electrical product, the sounding port is often shielded by a shell of the electrical product, so that sound cannot be effectively radiated; the piezoelectric transducer comprises a piezoelectric transducer body, wherein a cylindrical groove is formed in the upper end face of the piezoelectric transducer body, a sounding port is formed in the bottom face of the cylindrical groove, the sounding port is an upward convex annular surface, and due to the fact that the cylindrical groove is formed, the sounding port is not shielded, and sound can be emitted; even if the sound hits the inner wall of the cylindrical groove, the sound rebounds to the sounding opening, and because the sounding opening is an upward convex circular ring surface, the sound rebounds to the inner wall of the cylindrical groove, so that the sound rebounds all the time and is finally radiated; the center of the sounding opening is superposed with the circle center of the bottom surface of the cylindrical groove, and the sound is more uniformly distributed.
The lower part of the cylindrical groove is provided with a sounding cavity, a piezoelectric ceramic piece is arranged in the sounding cavity, the piezoelectric ceramic piece divides the sounding cavity into a first cavity and a second cavity, the piezoelectric ceramic piece generates sound through vibration in the cavity, and a circuit board can be arranged in the second cavity.
Further, the shape of the first cavity is a shape converging from the bottom to the top so as to gather and diffuse sound.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic cross-sectional view of the present invention;
in the figure: 1-cylindrical groove, 2-piezoelectric transducer body, 3-sounding mouth, 4-first cavity, 5-piezoelectric ceramic piece, 6-second cavity.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1, the utility model provides a pair of piezoelectric type converter, including piezoelectric type converter body 2, cylindrical recess 1 has been seted up to 2 up ends of piezoelectric type converter body, 1 bottom surfaces of cylindrical recess are provided with pronunciation mouth 3, pronunciation mouth 3 is to the convex torus of pronunciation direction, pronunciation mouth 3 the center with the coincidence of the centre of a circle of 1 bottom surfaces of cylindrical recess.
The piezoelectric transducer is usually circular, and the sounding port 3 is mostly arranged on the upper end surface, when the piezoelectric transducer is installed in an electrical product, the sounding port 3 is often shielded by a shell of the electrical product, so that sound cannot be effectively radiated; the upper end surface of the piezoelectric converter body 2 is provided with a cylindrical groove 1, the bottom surface of the cylindrical groove 1 is provided with a sounding port 3, the sounding port 3 is a circular ring surface protruding towards the sounding direction, and due to the arrangement of the cylindrical groove 1, the sounding port 3 is not shielded, so that sound can be radiated; even if the sound hits the inner wall of the cylindrical groove 1, the sound rebounds to the sound opening 3, and because the sound opening 3 is an upward convex circular ring surface, the sound rebounds to the inner wall of the cylindrical groove 1, so that the sound rebounds all the time and is finally radiated; the center of the sounding opening 3 coincides with the circle center of the bottom surface of the cylindrical groove 1, and sound can be distributed more uniformly.
Cylindrical recess 1 lower part is formed with the pronunciation cavity, be provided with piezoceramics piece 5 in the pronunciation cavity, piezoceramics piece 5 will the pronunciation cavity falls into first cavity 4 and second cavity 6, and piezoceramics piece 5 can arrange the circuit board through vibration in the cavity and make a sound in second cavity 6.
Further, the shape of the first chamber 4 is a shape converging from the bottom to the top, so as to gather and diffuse sound.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (2)
1. A piezoelectric transducer comprising a piezoelectric transducer body (2), characterized in that: the piezoelectric transducer comprises a piezoelectric transducer body (2), and is characterized in that a cylindrical groove (1) is formed in the upper end face of the piezoelectric transducer body (2), a sounding opening (3) is formed in the bottom face of the cylindrical groove (1), the sounding opening (3) is a circular ring surface protruding towards the sounding direction, and the center of the sounding opening (3) is overlapped with the circle center of the bottom face of the cylindrical groove (1);
the sounding cavity is formed in the lower portion of the cylindrical groove (1), a piezoelectric ceramic piece (5) is arranged in the sounding cavity, and the sounding cavity is divided into a first cavity (4) and a second cavity (6) by the piezoelectric ceramic piece (5).
2. The piezoelectric transducer of claim 1, wherein: the shape of the first cavity (4) is a shape converging from the bottom to the top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921588867.8U CN211181636U (en) | 2019-09-23 | 2019-09-23 | Piezoelectric type converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921588867.8U CN211181636U (en) | 2019-09-23 | 2019-09-23 | Piezoelectric type converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211181636U true CN211181636U (en) | 2020-08-04 |
Family
ID=71809568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921588867.8U Expired - Fee Related CN211181636U (en) | 2019-09-23 | 2019-09-23 | Piezoelectric type converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211181636U (en) |
-
2019
- 2019-09-23 CN CN201921588867.8U patent/CN211181636U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200804 Termination date: 20210923 |