CN209945456U - Novel transducer encapsulation device - Google Patents
Novel transducer encapsulation device Download PDFInfo
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- CN209945456U CN209945456U CN201920903897.7U CN201920903897U CN209945456U CN 209945456 U CN209945456 U CN 209945456U CN 201920903897 U CN201920903897 U CN 201920903897U CN 209945456 U CN209945456 U CN 209945456U
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- pressure spring
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Abstract
The utility model discloses a novel transducer packaging device, belonging to the technical field of ultrasonic transducers, comprising a lower shell for placing a transducer and an upper shell provided with a sealing structure, wherein a locking mechanism is arranged between the upper shell and the lower shell, and the outlet section of the upper shell is provided with a cylindrical plug plate; the sealing structure comprises a first sealing ring arranged between the inner wall of the outlet section of the upper shell and the plug plate, a second sealing ring arranged on the outer wall of the upper shell and pouring sealant arranged at the top of the plug plate. Utilize first sealing washer and second sealing washer to seal the inside casing of intercommunication ultrasonic flowmeter, utilize the casting glue to carry out the embedment to the cock board top, further improved sealing performance. The pressure spring is fixed in a certain area through the upper and lower mounting shells, the pressure spring can move in a small axial direction in the shells, then the transducer is fixed through the pressure spring, when the transducer works, signals are generated and received, and the pressure spring is used for absorbing vibration and buffering energy to reduce noise generation and transmission.
Description
Technical Field
The utility model relates to an ultrasonic transducer technical field, specifically speaking relates to a novel transducer encapsulation device.
Background
With the development of electronic technology, digital technology and other technologies, the technology for measuring the fluid flow by using ultrasonic pulses is rapidly developed.
The gas ultrasonic flowmeter has the characteristics of high measurement precision, large range ratio, no pressure loss and the like, has wide development prospect in the fields of chemical industry, metallurgy, natural gas trade metering, civil gas and the like, and becomes a focus and application of flowmeter research.
The existing ultrasonic technology has the problems of unstable signals, restricted improvement of signal-to-noise ratio, acoustic noise interference and the like, and the mass production of the product market is severely restricted.
Therefore, factors which may influence the measurement accuracy of the ultrasonic flow meter are analyzed, and an effective scheme for improving the measurement accuracy is provided, so that the method is the key point and the difficulty point of the current ultrasonic flow meter research. In ultrasonic detection, because a defect signal is polluted by noise and even annihilated, it is very difficult to directly distinguish the defect signal from the noise, and if a useful signal and a high-noise signal cannot be well separated, the detection accuracy cannot be guaranteed, and sometimes even the detection cannot be carried out.
Generally, ultrasonic signal processing technology is considered as the basis of all ultrasonic applications, and how to extract effective information in signals and reduce the influence of noise is a common problem of all ultrasonic equipment.
The problem of causing gas ultrasonic flow metering noise can be classified into two main aspects:
① environmental noise is generally transmitted by pressure during the transmission of gas, and various pressure regulating devices installed in pipelines are the biggest pollution source.
② background noise, mainly microstructure noise caused by material crystal scattering, its amplitude and arrival time are random, which causes interference to defect signal, but some interference noise will bring error to the subsequent processing of signal, and in severe cases even will drown out signal, so it must be denoised to obtain signal reflecting essential defect characteristics.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel transducer packaging hardware, through changing ultrasonic transducer packaging structure, the effectual noise problem who solves the transducer and produce at work.
In order to achieve the purpose, the novel transducer packaging device provided by the utility model comprises a lower shell for placing a transducer and an upper shell provided with a sealing structure, wherein a locking mechanism is arranged between the upper shell and the lower shell, and a cylindrical plug plate is arranged at an outlet section of the upper shell; the sealing structure comprises a first sealing ring arranged between the inner wall of the outlet section of the upper shell and the plug plate, a second sealing ring arranged on the outer wall of the upper shell and pouring sealant arranged at the top of the plug plate.
Among the above-mentioned technical scheme, utilize first sealing washer and second sealing washer to seal the inside casing of intercommunication ultrasonic flowmeter, simultaneously, utilize the pouring sealant to carry out the embedment to the cock board top, further improved sealing performance. The pressure spring is fixed in a certain area through the upper and lower mounting shells, the pressure spring can move in a small axial direction in the shells, then the transducer is fixed through the pressure spring, when the transducer works, signals are generated and received, and the pressure spring is used for absorbing vibration and buffering energy to reduce noise generation and transmission.
For convenient installation and dismantlement, as preferred, have the overlap section between last casing and the lower casing, locking mechanism is located overlap the section, including locating draw-in groove on the last casing and locating the buckle on the casing down. The draw-in groove can be 7 types of flavor, and the buckle makes last casing and lower casing relative rotation after getting into the draw-in groove, makes the buckle chucking in the draw-in groove simultaneously under the effect of pressure spring.
Preferably, the bottom end of the lower shell is provided with a sloping platform used for limiting the transducer, and the pressure spring is arranged at the top end of the transducer.
In order to prevent the sealing ring from sliding, preferably, the outer wall of the plug plate is provided with a first groove for mounting the first sealing ring, and the outer wall of the upper shell is provided with a second groove for mounting the second sealing ring.
For convenient mounting, it is preferable that the upper case is provided with a flange for preventing the device from being inserted therethrough. The device can utilize this flange to fix a position at the plug in-process, avoids inserting the position.
Preferably, the outlet section of the upper shell is provided with a third groove for conveniently connecting the mounting pliers. When the whole device is plugged, the third groove of the outlet section can be clamped by using the mounting pliers, so that slipping is prevented.
Preferably, the plug plate is made of plastic, and a metal wire communicated with an electrode wire of the transducer is arranged in the plug plate.
In order to further improve the sealing effect, it is preferable that each of the first seal ring and the second seal ring includes at least two.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a transducer packaging hardware simple structure, through changing ultrasonic transducer packaging structure, the effectual noise problem who has solved the transducer and produce at work.
Drawings
Fig. 1 is a schematic structural diagram of a transducer packaging apparatus according to an embodiment of the present invention;
fig. 2 is an exploded view of a transducer package according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described below with reference to the following embodiments and accompanying drawings.
Examples
Referring to fig. 1 and 2, the transducer package apparatus of the present embodiment includes an upper housing 3, a lower housing 2, and a cylindrical plug plate 7 disposed at an outlet section of the upper housing 3, wherein a locking mechanism is disposed between the upper housing 3 and the lower housing 2, and a sealing structure is disposed on the upper housing. The upper casing 3 is communicated with the inside of the lower casing 2 and is provided with a compression spring 4 for fixing the transducer 1.
The sealing structure of the embodiment comprises a first sealing ring 6 arranged between the inner wall of the outlet section of the upper shell 3 and the plug plate 7, a second sealing ring 5 arranged on the outer wall of the upper shell 3 and pouring sealant arranged at the top of the plug plate 7. Utilize first sealing washer 6 and second sealing washer 5 to seal the inside casing of intercommunication ultrasonic flowmeter, simultaneously, utilize the casting glue to carry out the embedment to the top of cock board 7, further improved sealing performance. The pressure spring 4 is fixed in a certain area through the upper and lower shells, the pressure spring 4 can move in the shell in a small axial direction, then the transducer 1 is fixed by the pressure spring 4, when the transducer 1 works, signals are generated and received, and the pressure spring 4 is used for absorbing vibration and buffering energy to reduce the generation and propagation of noise. In order to improve the sealing effect, the first sealing ring and the second sealing ring in the embodiment are both provided with two sealing rings.
The bottom of the lower shell 2 of the embodiment is provided with a sloping platform used for limiting the transducer 1, and the pressure spring 4 is arranged at the top end of the transducer 1. In order to prevent the sealing rings from sliding, the outer wall of the plug plate 7 of the present embodiment is provided with a first groove for mounting the first sealing ring 6, and the outer wall of the upper shell 3 is provided with a second groove for mounting the second sealing ring 5.
For ease of installation, the upper housing 3 of this embodiment is provided with a flange to prevent the device from being inserted over. The device can utilize this flange to fix a position at the plug in-process, avoids inserting the position. Meanwhile, the outlet section of the upper shell 3 is provided with a third groove which is convenient for connecting mounting pliers. When the whole device is plugged, the third groove of the outlet section can be clamped by using the mounting pliers, so that slipping is prevented.
The plug plate of the embodiment is made of plastic, and a metal wire communicated with an electrode wire of the transducer is arranged in the plug plate.
Table one is the spring package versus normal package noise:
meter I, spring package to common package noise comparison
The test data shows that: the ultrasonic transducer which is provided with the compression spring for secondary packaging can effectively reduce ultrasonic noise, and the signal to noise ratio of the ultrasonic transducer provided with the compression spring is obviously better than that of the ultrasonic transducer without the compression spring.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a novel transducer encapsulation device, includes the lower casing that is used for placing the transducer and is equipped with seal structure's last casing, its characterized in that:
a locking mechanism is arranged between the upper shell and the lower shell, and a cylindrical plug plate is arranged at the outlet section of the upper shell; the upper shell is communicated with the inner part of the lower shell and is provided with a pressure spring for fixing the transducer;
the sealing structure comprises an outlet section inner wall of the upper shell, a first sealing ring between the plug plates, a second sealing ring on the outer wall of the upper shell, and pouring sealant arranged at the top of the plug plates.
2. The transducer package of claim 1, wherein: the upper shell and the lower shell are provided with an overlapping section, and the locking mechanism is positioned in the overlapping section and comprises a clamping groove arranged on the upper shell and a buckle arranged on the lower shell.
3. The transducer package of claim 1, wherein: the bottom of lower casing be equipped with and be used for carrying out spacing sloping platform to the transducer, the pressure spring setting be in the top of transducer.
4. The transducer package of claim 1, wherein: the outer wall of cock board be equipped with and be used for the installation the first recess of first sealing washer, the outer wall of last casing on be equipped with and be used for the installation the second recess of second sealing washer.
5. The transducer package of claim 1, wherein: the upper shell is provided with a flange for preventing the device from being inserted.
6. The transducer package of claim 1, wherein: and the outlet section of the upper shell is provided with a third groove which is convenient for connecting and installing the pliers.
7. The transducer package of claim 1, wherein: the plug plate is made of plastic, and a metal wire communicated with an electrode wire of the transducer is arranged in the plug plate.
8. The transducer package of claim 1, wherein: the first sealing ring and the second sealing ring at least comprise two sealing rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920903897.7U CN209945456U (en) | 2019-06-14 | 2019-06-14 | Novel transducer encapsulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920903897.7U CN209945456U (en) | 2019-06-14 | 2019-06-14 | Novel transducer encapsulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209945456U true CN209945456U (en) | 2020-01-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920903897.7U Active CN209945456U (en) | 2019-06-14 | 2019-06-14 | Novel transducer encapsulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209945456U (en) |
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2019
- 2019-06-14 CN CN201920903897.7U patent/CN209945456U/en active Active
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