CN203181218U - Ultra-tone generator for audio mobile payment - Google Patents
Ultra-tone generator for audio mobile payment Download PDFInfo
- Publication number
- CN203181218U CN203181218U CN 201320176567 CN201320176567U CN203181218U CN 203181218 U CN203181218 U CN 203181218U CN 201320176567 CN201320176567 CN 201320176567 CN 201320176567 U CN201320176567 U CN 201320176567U CN 203181218 U CN203181218 U CN 203181218U
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- resonant cavity
- vibrating diaphragm
- audio
- ultra
- piezoelectric ceramic
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The utility model discloses an ultra-tone generator for audio mobile payment, including a resonant cavity, a vibrating diaphragm, a double-sided piezoelectric ceramic plate and a retainer ring, wherein the resonant cavity is of a horn structure, the vibrating diaphragm is arranged at the mouth of the resonant cavity, the resonant cavity wall is provided with a terminal, the terminal is connected with the double-sided piezoelectric ceramic plate by a wire, the double-sided piezoelectric ceramic plate is arranged in the resonant cavity, the center of the vibrating diaphragm is provided with an audio sound hole, and the retainer ring is disposed on the vibrating diaphragm and is connected with the resonant cavity by a thread. The ultra-tone generator enables the response range of an audio generator to improve from 20KHz to 70KHz, converts electrical signals with a plus peak value under voltage state of IOV into ultrasonic signals over 100db, greatly improves the response range and frequency of the audio generator, and makes the terminal to acquire relatively clear audio information.
Description
Technical field
The utility model relates to a kind of audio-frequency generator, relates in particular to a kind of ultra-tone generator for the audio frequency mobile-phone payment.
Background technology
The ultrasonic handpiece payment technology is that multinomial technology such as the application of a collection password, chnnel coding, modulation and demodulation, Audio Signal Processing are the comprehensive application technology of one, be that source data is encrypted, encoded and is modulated into audio frequency or the superaudio signal passes to the recipient by playing and recording with audio signal, again by signal handle, the demodulation reduction becomes source data by decoding, decryption restoration.The ultrasonic handpiece payment technology promotes the analytic ability of useful signal by complicated signal processing technology, guarantee to have reliably application under the environment of background noise, adopting the signal energy control technology can guarantee have effect spread to guarantee the signal safety of transmission sound wave in ten centimetres, is in-plant secure data communication mode.
Audio-frequency generator is a kind of electro-acoustic transducing device of paying in the mobile phone, and its function is the signal of telecommunication to be converted into voice signal play.The most frequently used have electromagnetic type audio-frequency generator and a piezoelectric type audio-frequency generator.When traditional electromagnetic type audio-frequency generator uses, normally add a diffusing son before voice coil loudspeaker voice coil, to promote its power, its response frequency is in the 20HZ-20KHZ audiorange.And the piezoelectric type audio-frequency generator is to utilize the deformation of potsherd to come sounding, and its power is minimum, is difficult to satisfy the response audiorange of audio frequency.
The utility model content
The purpose of this utility model provides the ultra-tone generator that is used for the audio frequency mobile-phone payment that a kind of power is big, the response audio frequency is wide, simple in structure with regard to being in order to address the above problem.
The utility model comprises resonant cavity, vibrating diaphragm, two-sided piezoelectric ceramic piece and retainer plate, described resonant cavity is flared structure, described vibrating diaphragm is arranged on the accent of described resonant cavity, described resonant cavity wall is provided with terminals, described terminals are connected by lead with described two-sided piezoelectric ceramic piece, described two-sided piezoelectric ceramic piece is arranged in the described resonant cavity, the center of described vibrating diaphragm is provided with the audio frequency vocal hole, and described retainer plate is arranged on the described vibrating diaphragm and by screw thread and is connected with described resonant cavity.
Further, be provided with dust cover between described retainer plate and the described vibrating diaphragm.
Concrete, described vibrating diaphragm is provided with the electrostatic plastic spraying layer.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The beneficial effects of the utility model are:
The utility model can make the response range of audio-frequency generator bring up to 70KHZ from 20KHZ, convert ultrasonic signal more than the 100db to adding the signal of telecommunication under the voltage status that peak-to-peak value is IOV, improved response range and the power of audio-frequency generator greatly, it is more clear to make that terminating machine obtains audio-frequency information.
Description of drawings
Fig. 1 is decomposition texture schematic diagram of the present utility model.
Among the figure: 1-retainer plate, 2-vibrating diaphragm, the two-sided piezoelectric ceramic piece of 3-, 4-terminals, 5-resonant cavity, 6-audio frequency vocal hole 7-accent 8-dust cover, 9-screw thread.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model comprises resonant cavity 5, vibrating diaphragm 2, two-sided piezoelectric ceramic piece 3 and retainer plate 1, described vibrating diaphragm 2 is arranged on the accent 7 of resonant cavity 5, resonant cavity 7 is flared structure, two-sided piezoelectric ceramic piece 3 is arranged in the resonant cavity 5, resonant cavity 7 walls are provided with terminals 4, terminals 4 and two-sided piezoelectric ceramic piece 3 are connected by lead, the center of vibrating diaphragm 2 is provided with audio frequency vocal hole 6, retainer plate 1 is arranged on the vibrating diaphragm 2 and by screw thread 9 and is connected with resonant cavity 5, can make the response range of audio-frequency generator bring up to 70KHZ from 20KHZ, convert ultrasonic signal more than the 100db to adding the signal of telecommunication under the voltage status that peak-to-peak value is IOV, improved response range and the power of audio-frequency generator greatly, it is more clear to make that terminating machine obtains audio-frequency information.
As shown in Figure 1, be provided with dust cover 8 between retainer plate 1 and the vibrating diaphragm 2, prevent dust Stop vocal hole 6 frequently, vibrating diaphragm 2 is provided with the electrostatic plastic spraying layer.
Claims (3)
1. ultra-tone generator that is used for the audio frequency mobile-phone payment, comprise resonant cavity and vibrating diaphragm, described resonant cavity is flared structure, described vibrating diaphragm is arranged on the accent of described resonant cavity, it is characterized in that: also comprise two-sided piezoelectric ceramic piece and retainer plate, described resonant cavity wall is provided with terminals, described terminals are connected by lead with described two-sided piezoelectric ceramic piece, described two-sided piezoelectric ceramic piece is arranged in the described resonant cavity, the center of described vibrating diaphragm is provided with the audio frequency vocal hole, and described retainer plate is arranged on the described vibrating diaphragm and by screw thread and is connected with described resonant cavity.
2. a kind of ultra-tone generator for the audio frequency mobile-phone payment according to claim 1 is characterized in that: be provided with dust cover between described retainer plate and the described vibrating diaphragm.
3. a kind of ultra-tone generator for the audio frequency mobile-phone payment according to claim 1, it is characterized in that: described vibrating diaphragm is provided with the electrostatic plastic spraying layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320176567 CN203181218U (en) | 2013-04-10 | 2013-04-10 | Ultra-tone generator for audio mobile payment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320176567 CN203181218U (en) | 2013-04-10 | 2013-04-10 | Ultra-tone generator for audio mobile payment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203181218U true CN203181218U (en) | 2013-09-04 |
Family
ID=49077870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320176567 Expired - Fee Related CN203181218U (en) | 2013-04-10 | 2013-04-10 | Ultra-tone generator for audio mobile payment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203181218U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015089992A1 (en) * | 2013-12-19 | 2015-06-25 | 中兴通讯股份有限公司 | Driving apparatus, heat dissipating apparatus and method for speaker vibrating diaphragm coil, and mobile terminal |
-
2013
- 2013-04-10 CN CN 201320176567 patent/CN203181218U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015089992A1 (en) * | 2013-12-19 | 2015-06-25 | 中兴通讯股份有限公司 | Driving apparatus, heat dissipating apparatus and method for speaker vibrating diaphragm coil, and mobile terminal |
| US9900701B2 (en) | 2013-12-19 | 2018-02-20 | Zte Corporation | Driving apparatus, heat dissipating apparatus and method for speaker vibrating diaphragm coil, and mobile terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20140410 |