CN211488436U - Ultrasonic transducer with high-voltage-resistant structure - Google Patents
Ultrasonic transducer with high-voltage-resistant structure Download PDFInfo
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- CN211488436U CN211488436U CN201921534402.4U CN201921534402U CN211488436U CN 211488436 U CN211488436 U CN 211488436U CN 201921534402 U CN201921534402 U CN 201921534402U CN 211488436 U CN211488436 U CN 211488436U
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Abstract
An ultrasonic transducer with a high-pressure resistant structure comprises a shell and a high-pressure resistant assembly arranged in the shell, wherein the shell of the transducer is sealed integrally, a compression structure among all components is adopted, and high-pressure resistant materials are selected for the shell of the transducer and all the components in the shell to realize small deformation or no deformation of the ultrasonic transducer in a high-pressure environment; therefore, the waveform quality and stability of the ultrasonic transducer in a high-pressure environment are ensured, and the detection precision of the ultrasonic flowmeter in the high-pressure environment is improved.
Description
Technical Field
The utility model belongs to the ultrasonic flowmeter field especially relates to an ultrasonic transducer of high pressure resistant structure.
Background
The traditional ultrasonic transducer has different requirements on signal strength, pressure resistance degree and propagation direction for different application occasions and functions, and the pressure resistance strength requirement of the ultrasonic transducer is relatively increased in the requirement on the ultrasonic flowmeter under a high-pressure environment.
The traditional ultrasonic transducer can be used in an environment with relatively low pressure or a less corrosive environment, but the existing ultrasonic transducer is easy to deform when used in an environment with oil and gas with high requirement pressure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an ultrasonic transducer of high pressure resistant structure, it has solved current ultrasonic transducer and has taken place the problem of warping bearing the high pressure.
The purpose of the utility model is realized through the following technical scheme:
the ultrasonic transducer comprises a shell and a pressure-resistant assembly arranged inside the shell and used for resisting high pressure.
Further: the pressure-resistant assembly comprises a matching layer, piezoelectric ceramics, a backing, a locking ring and a retaining ring for blocking the backing;
the matching layer, the piezoelectric ceramic, the backing, the locking ring and the retainer ring for blocking the backing are sequentially arranged inside the shell from bottom to top;
the piezoelectric ceramic is fixedly bonded on the matching layer, the matching layer and the piezoelectric ceramic are fixedly bonded and then fixed through a positioning sleeve, and the positioning sleeve is bonded with the inner wall of the shell;
the top of the piezoelectric ceramic is bonded with a backing, and the top of the backing is bonded with a check ring;
the outer wall of the retainer ring is bonded with the locking ring, and the outer wall of the locking ring is bonded with the inner wall of the shell.
Further: the matching layer, the piezoelectric ceramic, the backing, the locking ring and the retainer ring are sealed by adhesive.
Further: the adhesive is epoxy resin.
Further: a first electrode lead is welded on the side electrode surface of the piezoelectric ceramic, and a second electrode lead is welded on the upper electrode surface of the piezoelectric ceramic;
the first electrode lead passes through a first aperture disposed in the middle of the backing;
the second electrode lead passes through a second aperture in the side of the backing.
Further: the shell is made of steel or titanium alloy, and the shell is of an integrated closed structure.
Further: the front end of the shell is 0.2-1mm thick.
Further: the back lining is made of high-strength plastic or heavy metal powder.
Further: the locking ring is made of stainless steel.
Further: the retainer ring is made of steel or high-hardness plastic.
Compared with the prior art, the beneficial effect that this application has is:
the shell of the ultrasonic transducer is of an integrated closed structure, the front end of the shell is 0.2-1mm thick and is suitable for different frequencies, and the shell is made of steel or titanium alloy, so that the compressive strength of the shell is improved;
the internal material of the ultrasonic transducer and the material of the structural matching layer are high-impedance and high-hardness, and the piezoelectric ceramic, the backing, the locking ring and the retainer ring are all pressure-resistant materials, so that the high-pressure resistance of the ultrasonic transducer can be ensured, and the stability of the transducer can be improved;
the shell structure is a closed integrated structure, and deformation of the ultrasonic transducer is reduced after all parts are compressed.
Drawings
Fig. 1 is a schematic structural diagram of the high voltage resistant ultrasonic transducer according to the present application.
Wherein: 1. a housing; 2. a compression resistant assembly; 21. a matching layer; 22. piezoelectric ceramics; 23. a backing; 24. locking a ring; 25. a retainer ring; 26. a positioning sleeve; 27. a first electrode lead; 28. a second electrode lead; 29. a first hole; 30. a second hole; 3. and (3) an adhesive.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
as shown in fig. 1, the ultrasonic transducer with high voltage-resistant structure comprises a housing 1 and a pressure-resistant assembly 2 arranged inside the housing 1 and used for high voltage resistance.
The compression resistant assembly 2 includes a matching layer 21, a piezoelectric ceramic 22, a backing 23, a locking ring 24, and a collar 25 for blocking the backing 23.
The matching layer 21, the piezoelectric ceramic 22, the backing 23, the locking ring 24, and the baffle 25 for blocking the backing 23 are sequentially disposed inside the housing 1 from bottom to top.
The piezoelectric ceramics 22 is fixedly bonded on the matching layer 21, the matching layer 21 and the piezoelectric ceramics 22 are fixedly bonded and then fixed through a positioning sleeve 26, and the positioning sleeve 26 is bonded with the inner wall of the shell 1.
The top of the piezoelectric ceramic 22 is bonded to a backing 23, and the top of the backing 23 is bonded to a collar 25.
The outer wall of the retainer ring 25 is bonded with the locking ring 24, and the outer wall of the locking ring 24 is bonded with the inner wall of the shell 1.
The matching layer 21, the piezoelectric ceramic 22, the backing 23, the locking ring 24 and the retainer ring 25 are sealed by an adhesive 3, preferably epoxy resin, the adhesive 3.
A first electrode lead 27 is welded to the side electrode surface of the piezoelectric ceramic 22, and a second electrode lead 28 is welded to the upper electrode surface of the piezoelectric ceramic 22.
The first electrode lead 27 passes through a first hole 29 provided in the middle of the backing 23.
A second electrode lead 28 passes through a second aperture 30 in the side of the backing 23.
The shell 1 is made of steel or titanium alloy, the shell 1 is of an integrated closed structure, and the thickness of the front end of the shell 1 is 0.2-1 mm.
The back lining 23 is made of high-strength plastics or heavy metal powder, and the locking ring 24 is made of stainless steel material; the retainer ring 25 is steel or a high hardness plastic.
The working principle is as follows: the transducer shell 1 is sealed integrally, a compression structure among all parts is adopted, and high-pressure-resistant materials are selected for the transducer shell 1 and all parts inside, so that the ultrasonic transducer is small in deformation or does not deform in a high-pressure environment. Therefore, the waveform quality and stability of the ultrasonic transducer in a high-pressure environment are ensured, and the detection precision of the ultrasonic flowmeter in the high-pressure environment is improved.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
It is to be understood that the present application is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (9)
1. An ultrasonic transducer with a high-voltage-resistant structure is characterized by comprising a shell (1) and a pressure-resistant assembly (2) which is arranged inside the shell (1) and is used for resisting high voltage;
the pressure-resistant assembly (2) comprises a matching layer (21), a piezoelectric ceramic (22), a backing (23), a locking ring (24) and a retaining ring (25) for blocking the backing (23);
the matching layer (21), the piezoelectric ceramic (22), the backing (23), the locking ring (24) and the retainer ring (25) for blocking the backing (23) are sequentially arranged inside the shell (1) from bottom to top;
the piezoelectric ceramic (22) is fixedly bonded on the matching layer (21), the matching layer (21) and the piezoelectric ceramic (22) are fixedly bonded and then fixed through a positioning sleeve (26), and the positioning sleeve (26) is bonded with the inner wall of the shell (1);
the top of the piezoelectric ceramic (22) is bonded with a backing (23), and the top of the backing (23) is bonded with a retainer ring (25);
the outer wall of the retainer ring (25) is bonded with the locking ring (24), and the outer wall of the locking ring (24) is bonded with the inner wall of the shell (1).
2. The ultrasonic transducer with high voltage resistance structure according to claim 1, wherein the matching layer (21), the piezoelectric ceramic (22), the backing (23), the locking ring (24) and the retaining ring (25) are sealed by an adhesive (3).
3. The ultrasonic transducer with high voltage resistance structure as claimed in claim 2, wherein the adhesive (3) is epoxy resin.
4. The ultrasonic transducer with high voltage-resistant structure as claimed in claim 1, wherein a first electrode lead (27) is welded on the side electrode surface of the piezoelectric ceramic (22), and a second electrode lead (28) is welded on the upper electrode surface of the piezoelectric ceramic (22);
the first electrode lead (27) passes through a first hole (29) provided in the middle of the backing (23);
the second electrode lead (28) passes through a second hole (30) in the side of the backing (23).
5. The ultrasonic transducer with high voltage resistance structure as claimed in claim 1, wherein the housing (1) is made of steel or titanium alloy, and the housing (1) is a one-piece closed structure.
6. The ultrasonic transducer with high voltage endurance structure according to claim 5, wherein the front thickness of the housing (1) is 0.2-1 mm.
7. The ultrasonic transducer of a high-voltage resistant structure according to claim 1, wherein the backing (23) is made of high-strength plastic or heavy metal powder.
8. The ultrasonic transducer with high voltage resistance structure as claimed in claim 1, wherein the locking ring (24) is made of stainless steel.
9. The ultrasonic transducer of high-voltage-resistant structure according to claim 1, wherein the retainer ring (25) is steel or high-hardness plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921534402.4U CN211488436U (en) | 2019-09-16 | 2019-09-16 | Ultrasonic transducer with high-voltage-resistant structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921534402.4U CN211488436U (en) | 2019-09-16 | 2019-09-16 | Ultrasonic transducer with high-voltage-resistant structure |
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| Publication Number | Publication Date |
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| CN211488436U true CN211488436U (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921534402.4U Active CN211488436U (en) | 2019-09-16 | 2019-09-16 | Ultrasonic transducer with high-voltage-resistant structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110465473A (en) * | 2019-09-16 | 2019-11-19 | 西安安森智能仪器股份有限公司 | A kind of ultrasonic transducer of high pressure resistant structure |
| WO2022142758A1 (en) * | 2020-12-28 | 2022-07-07 | 金卡智能集团股份有限公司 | Ultrasonic transducer |
-
2019
- 2019-09-16 CN CN201921534402.4U patent/CN211488436U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110465473A (en) * | 2019-09-16 | 2019-11-19 | 西安安森智能仪器股份有限公司 | A kind of ultrasonic transducer of high pressure resistant structure |
| WO2022142758A1 (en) * | 2020-12-28 | 2022-07-07 | 金卡智能集团股份有限公司 | Ultrasonic transducer |
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