CN206276593U - A kind of ultrasonic transducer with one way propagation function - Google Patents
A kind of ultrasonic transducer with one way propagation function Download PDFInfo
- Publication number
- CN206276593U CN206276593U CN201621239129.9U CN201621239129U CN206276593U CN 206276593 U CN206276593 U CN 206276593U CN 201621239129 U CN201621239129 U CN 201621239129U CN 206276593 U CN206276593 U CN 206276593U
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- away
- aluminium foil
- absorbing layer
- ultrasonic transducer
- Prior art date
- 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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Abstract
The utility model discloses a kind of ultrasonic transducer with one way propagation function, including housing and piezoelectric ceramics, middle-end at the top of housing cavity offers through hole, the inner chamber of through hole is run through conductive lever, conductive lever is fixedly connected with lug plate away from one end of through hole, lug plate is fixedly installed in the middle-end at the top of sound absorbing layer, the lower surface of sound absorbing layer is fixedly connected with aluminium foil, aluminium foil is fixedly connected with cork bed course away from the one side of sound absorbing layer, cork bed course is fixedly connected with circuit board away from the one side of aluminium foil, circuit board is fixedly connected with piezoelectric ceramics away from the one side of cork bed course.The utility model is provided with aluminium foil between sound absorbing layer and cork bed course, can be one of directive aluminium foil direction in two rightabout ultrasonic waves being sent of reflectance ultrasound wave transducer, and make it together with the ultrasonic wave away from aluminium foil direction for people service, the loss of ultrasonic energy is not only avoid, while also improving the quality of ultrasonic transducer.
Description
Technical field
The utility model is related to energy conversion technical field, specially a kind of ultrasonic wave with one way propagation function
Transducer.
Background technology
Ultrasonic transducer be using ceramics piezo-electric effect by the mechanical oscillation that ultrasonic wave is produced be changed into electric signal or
Mechanical oscillation are produced under electric field driven so as to send the device of ultrasonic wave, because it has good transducing characteristic, therefore quilt
It is widely used in ultrasound examination field.Conventional ultrasonic transducer includes housing, the piezoelectric ceramics being placed in housing, is close to
Piezoelectric ceramics is used for the vibrating reed that ultrasonic wave amplifies that will be received.But the ultrasonic wave that existing ultrasonic transducer sends all is double
To propagation, the propagation energy of ultrasonic wave is greatly weakened, influence the quality of transducer, therefore, it is proposed that a kind of have list
To the ultrasonic transducer of communication function.
Utility model content
The purpose of this utility model is to provide a kind of ultrasonic transducer with one way propagation function, possesses unidirectional biography
The advantage of ultrasonic wave is broadcast, solves the problems, such as that the ultrasonic propagation energy of existing ultrasonic transducer is weak.
To achieve the above object, the utility model provides following technical scheme：A kind of ultrasound with one way propagation function
Wave transducer, including housing and piezoelectric ceramics, the middle-end at the top of the housing cavity offer through hole, and the inner chamber of the through hole is passed through
Conductive lever is installed with, the conductive lever is fixedly connected with lug plate away from one end of through hole, and the lug plate is fixedly installed in
Middle-end at the top of sound absorbing layer, the lower surface of the sound absorbing layer is fixedly connected with aluminium foil, and the aluminium foil is consolidated away from the one side of sound absorbing layer
Surely cork bed course is connected with, the cork bed course is fixedly connected with circuit board away from the one side of aluminium foil, and the circuit board is away from soft
The one side of headblock layer is fixedly connected with piezoelectric ceramics, and the piezoelectric ceramics is fixedly connected with vibrating reed away from the one side of circuit board,
One side of the vibrating reed away from the piezoelectric ceramics and bottom positioned at housing cavity is fixedly connected with diaphragm.
Preferably, the conductive lever is installed with sealing ring with the junction of through hole.
Preferably, the sound absorbing layer is acoustical cotton.
Preferably, the housing is cylindrical, metal structures.
Compared with prior art, the beneficial effects of the utility model are as follows：
1st, the utility model between sound absorbing layer and cork bed course be provided with aluminium foil, can reflectance ultrasound wave transducer sent
Two rightabout ultrasonic waves in one of directive aluminium foil direction, and make it be people together with the ultrasonic wave away from aluminium foil direction
Service, the loss of ultrasonic energy is not only avoid, while also improving the quality of ultrasonic transducer.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
In figure：1 housing, 2 lug plates, 3 aluminium foils, 4 circuit boards, 5 vibrating reeds, 6 diaphragms, 7 piezoelectric ceramics, 8 cork bed courses,
9 sound absorbing layers, 10 conductive levers, 11 sealing rings, 12 through holes.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Refer to Fig. 1, a kind of ultrasonic transducer with one way propagation function, including housing 1 and piezoelectric ceramics 7, shell
The middle-end of the inner cavity top of body 1 offers through hole 12, and through there is conductive lever 10, conductive lever 10 is away from through hole for the inner chamber of through hole 12
12 one end is fixedly connected with lug plate 2, and lug plate 2 is fixedly installed in the middle-end at the top of sound absorbing layer 9, the lower surface of sound absorbing layer 9
Aluminium foil 3 is fixedly connected with, can the direction of directive aluminium foil 3 in two rightabout ultrasonic waves being sent of reflectance ultrasound wave transducer
One, and make it together with the ultrasonic wave away from the direction of aluminium foil 3 for people service, the loss of ultrasonic energy is not only avoid,
The quality of ultrasonic transducer is also improved simultaneously, and aluminium foil 3 is fixedly connected with cork bed course 8 away from the one side of sound absorbing layer 9 so that
Vibrational energy will not occur side leakage, improve acoustic pressure, and cork bed course 8 is fixedly connected with circuit board 4 away from the one side of aluminium foil 3, electricity
Road plate 4 is fixedly connected with piezoelectric ceramics 7 away from the one side of cork bed course 8, and piezoelectric ceramics 7 is fixed away from the one side of circuit board 4 and connected
Be connected to vibrating reed 5, vibrating reed 5 away from piezoelectric ceramics 7 one side and positioned at the bottom of the inner chamber of housing 1 be fixedly connected with diaphragm 6,
Conductive lever 10 is installed with sealing ring 11 with the junction of through hole 12, improves the sealing of housing 1, serves water proof and dust proof
Effect, sound absorbing layer 9 be acoustical cotton, reduce noise generation, housing 1 be cylindrical, metal structures.
When using, aluminium foil 3 can the side of directive aluminium foil 3 in two rightabout ultrasonic waves being sent of reflectance ultrasound wave transducer
To one, and it is people's service to make it together with the ultrasonic wave away from the direction of aluminium foil 3, not only avoid the damage of ultrasonic energy
Lose, while also improving the quality of ultrasonic transducer.
To sum up：This has the ultrasonic transducer of one way propagation function by the effect of aluminium foil 3, solves existing ultrasonic wave
The weak problem of the ultrasonic propagation energy of transducer.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out various changes in the case where principle of the present utility model and spirit is not departed from, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of ultrasonic transducer with one way propagation function, including housing（1）And piezoelectric ceramics（7）, it is characterised in that：
The housing（1）The middle-end of inner cavity top offers through hole（12）, the through hole（12）Inner chamber through there is conductive lever（10）,
The conductive lever（10）Away from through hole（12）One end be fixedly connected with lug plate（2）, the lug plate（2）It is fixedly installed in
Sound absorbing layer（9）The middle-end at top, the sound absorbing layer（9）Lower surface be fixedly connected with aluminium foil（3）, the aluminium foil（3）Away from suction
Sound-absorbing layer（9）One side be fixedly connected with cork bed course（8）, the cork bed course（8）Away from aluminium foil（3）One side be fixedly connected with
Circuit board（4）, the circuit board（4）Away from cork bed course（8）One side be fixedly connected with piezoelectric ceramics（7）, the piezoelectricity pottery
Porcelain（7）Away from circuit board（4）One side be fixedly connected with vibrating reed（5）, the vibrating reed（5）Away from piezoelectric ceramics（7）One
Face and positioned at housing（1）The bottom of inner chamber is fixedly connected with diaphragm（6）.
2. a kind of ultrasonic transducer with one way propagation function according to claim 1, it is characterised in that：It is described to lead
Electric screw rod（10）With through hole（12）Junction be installed with sealing ring（11）.
3. a kind of ultrasonic transducer with one way propagation function according to claim 1, it is characterised in that：The suction
Sound-absorbing layer（9）It is acoustical cotton.
4. a kind of ultrasonic transducer with one way propagation function according to claim 1, it is characterised in that：The shell
Body（1）It is cylindrical, metal structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621239129.9U CN206276593U (en) | 2016-11-20 | 2016-11-20 | A kind of ultrasonic transducer with one way propagation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621239129.9U CN206276593U (en) | 2016-11-20 | 2016-11-20 | A kind of ultrasonic transducer with one way propagation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206276593U true CN206276593U (en) | 2017-06-27 |
Family
ID=59082595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621239129.9U Expired - Fee Related CN206276593U (en) | 2016-11-20 | 2016-11-20 | A kind of ultrasonic transducer with one way propagation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206276593U (en) |
-
2016
- 2016-11-20 CN CN201621239129.9U patent/CN206276593U/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: 20170627 Termination date: 20171120 |