CN202587366U - Intermediate fixing support type frequency-halving piezoelectric bone conduction auditory device - Google Patents
Intermediate fixing support type frequency-halving piezoelectric bone conduction auditory device Download PDFInfo
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- CN202587366U CN202587366U CN 201220207590 CN201220207590U CN202587366U CN 202587366 U CN202587366 U CN 202587366U CN 201220207590 CN201220207590 CN 201220207590 CN 201220207590 U CN201220207590 U CN 201220207590U CN 202587366 U CN202587366 U CN 202587366U
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Abstract
The utility model relates to a frequency-halving piezoelectric bone conduction auditory device, belonging to bone conduction auditory devices. An intermediate fixing support type is adopted for two piezoelectric vibrators different in first-order resonant frequency, a support column of the piezoelectric vibrator with low first-order resonant frequency is fixedly connected with an auditory device through a rubber strip, a support column of the piezoelectric vibrator with high first-order resonant frequency is fixed right above the piezoelectric vibrator with low first-order resonant frequency also by a rubber strip, the two piezoelectric vibrators are concentric structurally, a conduction column of the piezoelectric vibrator with high first-order resonant frequency passes through a central hole of an annular conduction column with a through hole, of the piezoelectric vibrator with low first-order resonant frequency, and end parts of the two conduction columns are kept level and are in contact with a skull through a touch film. The frequency-halving piezoelectric bone conduction auditory device has the advantages that the loudness of produced sounds at a low-frequency area of the auditory device is increased, the other piezoelectric vibrator adopting the intermediate fixing support type is used as a sound generation element for intermediate/high-frequency areas, and thus, the problem that the single piezoelectric vibrator is narrow in frequency band for audio signals at present is solved.
Description
Technical field
The utility model relates to a kind of with the novel bone conduction auditory device of piezoelectric monocrystal sheet oscillator as the vibration sounding element.
Background technology
The piezoelectric type bone conduction auditory device is compared with electromagnetic type, magnetostriction type bone conduction auditory device to have compact conformation, electromagnetic-radiation-free, not to receive the low advantage of electromagnetic interference, consumed power; Application prospect is good; The research of implanted piezoelectric bone conduction auditory device is more at present; But implanted can bring misery to the patient, thus be easy to safeguard and the wear-type changed is arisen at the historic moment, but wear-type mainly adopts single piezoelectric vibrator at present; Single piezoelectric vibrator only can make near the audio signal its resonance frequency be able to reproduce preferably, and has only the pairing vibration shape of resonance frequency better.Therefore be badly in need of solving single piezoelectric element at present audio signal is reproduced the narrow problem of frequency range.
Summary of the invention
The utility model provides a kind of center fixed brace type two divided-frequency piezoelectric bone conduction auditory device, to solve single piezoelectric element audio signal is reproduced the narrow problem of frequency range.
The technical scheme that the utility model adopts is: loam cake is fixedly connected with bottom; Contact membranes is fixedly connected with loam cake; Piezoelectric ceramic wafer and copper base are formed the low resonant frequency piezoelectric vibrator, and copper base is fixed together with bottom via support column one and rubber strip one, and audio signal wire one is connected the both positive and negative polarity of low resonant frequency piezoelectric vibrator; And pass the threading hole of bottom; Annular conductive post upper end with through hole contacts with contact membranes, and the lower end is fixedly connected with the brace summer that the top has onesize central through hole, and the both sides of brace summer are connected on the piezoelectric vibrator copper base; Piezoelectric ceramic wafer and copper base are formed high resonance frequency piezoelectric vibrator; High resonance frequency piezoelectric vibrator is in low resonant frequency piezoelectric vibrator upper end; The copper base of high resonance frequency piezoelectric vibrator is fixed together via the piezoelectric ceramic wafer of support column two and rubber strip two and low resonant frequency piezoelectric vibrator; Audio signal wire two is connected the both positive and negative polarity of high resonance frequency piezoelectric vibrator; And pass the threading hole of bottom, and the solid cylindrical conductive post is passed the through hole of the annular conductive post with through hole, and its upper surface is concordant with the annular conductive post upper surface with through hole and contact with contact membranes; The top end face of lower end and hollow cap connects together, and the lower surface of hollow cap is connected in the top edge of the piezoelectric ceramic wafer of high resonance frequency piezoelectric vibrator.
The effect of brace summer and hollow cap is that the piezoelectric vibrator end portion vibration is passed to conductive post, with person who happens to be on hand for an errand's ear perceives sound.
The utility model has the advantages that: novel structure; Solved existing wear-type piezoelectric bone conduction auditory device to the sufficient inadequately problem of low-frequency sound signal reproduction; Adopt the piezoelectric vibrator of center fixed supporting way to give birth to element simultaneously, solved single piezoelectric vibrator audio signal is reproduced the narrow problem of frequency band as middle and high frequency sofar.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Loam cake 1 is fixedly connected with bottom 14; Contact membranes 11 is fixedly connected with loam cake; Piezoelectric ceramic wafer 4 is formed the low resonant frequency piezoelectric vibrator with copper base 3, and copper base 3 is fixed together with bottom 14 via support column 1 and rubber strip 1, and audio signal wire 1 is connected the both positive and negative polarity of low resonant frequency piezoelectric vibrator; And pass the threading hole 17 of bottom 14; Annular conductive post 8 upper ends with through hole contact with contact membranes 11, and the lower end is fixedly connected with the brace summer 2 that the top has onesize central through hole, and the both sides of brace summer 2 are connected on the piezoelectric vibrator copper base 3; Piezoelectric ceramic wafer 6 is formed high resonance frequency piezoelectric vibrator with copper base 5; High resonance frequency piezoelectric vibrator is in low resonant frequency piezoelectric vibrator upper end; The copper base 5 of high resonance frequency piezoelectric vibrator is fixed together via the piezoelectric ceramic wafer 4 of support column 2 10 and rubber strip 2 15 and low resonant frequency piezoelectric vibrator; Audio signal wire 2 13 is connected the both positive and negative polarity of high resonance frequency piezoelectric vibrator; And pass the threading hole 17 of bottom 14, and solid cylindrical conductive post 9 is passed the through hole of the annular conductive post 8 with through hole, and its upper surface is concordant with annular conductive post 8 upper surfaces with through hole and contact with contact membranes 11; The top end face of lower end and hollow cap 12 connects together, and the lower surface of hollow cap 12 is connected in the top edge of the piezoelectric ceramic wafer 6 of high resonance frequency piezoelectric vibrator.
The effect of brace summer 2 and hollow cap 12 is that the piezoelectric vibrator end portion vibration is passed to conductive post, with person who happens to be on hand for an errand's ear perceives sound.
Claims (1)
1. center fixed brace type two divided-frequency piezoelectric bone conduction auditory device; It is characterized in that: loam cake is fixedly connected with bottom, and contact membranes is fixedly connected with loam cake, and piezoelectric ceramic wafer and copper base are formed the low resonant frequency piezoelectric vibrator; Copper base is fixed together with bottom via support column one and rubber strip one; Audio signal wire one is connected the both positive and negative polarity of low resonant frequency piezoelectric vibrator, and passes the threading hole of bottom, and the annular conductive post upper end with through hole contacts with contact membranes; The lower end is fixedly connected with the brace summer that the top has onesize central through hole, and the both sides of brace summer are connected on the piezoelectric vibrator copper base; Piezoelectric ceramic wafer and copper base are formed high resonance frequency piezoelectric vibrator; High resonance frequency piezoelectric vibrator is in low resonant frequency piezoelectric vibrator upper end; The copper base of high resonance frequency piezoelectric vibrator is fixed together via the piezoelectric ceramic wafer of support column two and rubber strip two and low resonant frequency piezoelectric vibrator; Audio signal wire two is connected the both positive and negative polarity of high resonance frequency piezoelectric vibrator; And pass the threading hole of bottom, and the solid cylindrical conductive post is passed the through hole of the annular conductive post with through hole, and its upper surface is concordant with the annular conductive post upper surface with through hole and contact with contact membranes; The top end face of lower end and hollow cap connects together, and the lower surface of hollow cap is connected in the top edge of the piezoelectric ceramic wafer of high resonance frequency piezoelectric vibrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220207590 CN202587366U (en) | 2012-05-10 | 2012-05-10 | Intermediate fixing support type frequency-halving piezoelectric bone conduction auditory device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220207590 CN202587366U (en) | 2012-05-10 | 2012-05-10 | Intermediate fixing support type frequency-halving piezoelectric bone conduction auditory device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202587366U true CN202587366U (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220207590 Expired - Fee Related CN202587366U (en) | 2012-05-10 | 2012-05-10 | Intermediate fixing support type frequency-halving piezoelectric bone conduction auditory device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202587366U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391500A (en) * | 2013-07-12 | 2013-11-13 | 西安康弘新材料科技有限公司 | Piezoelectric ceramic bone-conduction receiver vibrator and mounting structure thereof |
| CN105072548A (en) * | 2015-07-15 | 2015-11-18 | 苏州攀特电陶科技股份有限公司 | Piezoelectric vibration band sound generating device |
-
2012
- 2012-05-10 CN CN 201220207590 patent/CN202587366U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391500A (en) * | 2013-07-12 | 2013-11-13 | 西安康弘新材料科技有限公司 | Piezoelectric ceramic bone-conduction receiver vibrator and mounting structure thereof |
| CN105072548A (en) * | 2015-07-15 | 2015-11-18 | 苏州攀特电陶科技股份有限公司 | Piezoelectric vibration band sound generating device |
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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: 20121205 Termination date: 20130510 |