CN220104954U - Sensor and sensor probe structure - Google Patents
Sensor and sensor probe structure Download PDFInfo
- Publication number
- CN220104954U CN220104954U CN202321593627.3U CN202321593627U CN220104954U CN 220104954 U CN220104954 U CN 220104954U CN 202321593627 U CN202321593627 U CN 202321593627U CN 220104954 U CN220104954 U CN 220104954U
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- China
- Prior art keywords
- damping layer
- sensor
- probe structure
- sensor probe
- circuit board
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Links
- 239000000523 sample Substances 0.000 title claims abstract description 33
- 238000013016 damping Methods 0.000 claims abstract description 44
- 230000026683 transduction Effects 0.000 claims abstract description 22
- 238000010361 transduction Methods 0.000 claims abstract description 22
- 239000010410 layer Substances 0.000 claims description 41
- 239000012790 adhesive layer Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 9
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model relates to the technical field of liquid concentration measurement and discloses a sensor and a sensor probe structure, wherein the sensor structure comprises a shell, the upper end of the shell is open and the inside of the shell is hollow, a first accommodating cavity and a second accommodating cavity are sequentially formed in the shell from bottom to top, a first damping layer is filled and sealed in the first accommodating cavity, a transduction piece is embedded in the first damping layer, the bottom surface of the transduction piece is attached to the bottom surface of the first accommodating cavity, a circuit board is arranged in the second accommodating cavity, a signal wire is connected above the circuit board, and the circuit board and the second accommodating cavity are fixed through the filled and sealed second damping layer. The beneficial effects of the utility model are as follows: the sealing performance is good, the measurement accuracy is high, and the failure is not easy to occur.
Description
Technical Field
The utility model relates to the technical field of liquid concentration measurement, in particular to an exhaust gas treatment system and a sensor structure.
Background
At present, when the concentration of liquid is detected, ultrasonic waves are generally generated by using a transduction piece for measurement, and as the use environment of a sensor probe is always in the condition of water vapor, the tightness is an important index for measuring the quality of the sensor probe, and in the prior art, the tightness of the sensor probe is poor, water vapor or detection liquid easily enters the sensor probe to cause the failure of an internal circuit of the sensor probe, and in addition, the transduction piece is easily affected by vibration and noise, so that the measurement precision is low.
Disclosure of Invention
The purpose of the utility model is that: the utility model provides a sensor and sensor probe structure, aim at solving the technical problem that the leakproofness of sensor is relatively poor, measurement accuracy is low among the prior art.
In order to achieve the above object, a first aspect of the present utility model provides a sensor probe structure, which comprises a housing, wherein an upper end of the housing is open and an interior is hollow, a first accommodating cavity and a second accommodating cavity are sequentially provided in the housing from bottom to top, a first damping layer is encapsulated in the first accommodating cavity, a transduction piece is embedded in the first damping layer, a bottom surface of the transduction piece is attached to a bottom surface of the first accommodating cavity, a circuit board electrically connected with the transduction piece is provided in the second accommodating cavity, a signal wire is connected above the circuit board, and the circuit board and the second accommodating cavity are fixed through the encapsulated second damping layer.
Furthermore, the bottom surface of the first accommodating cavity is also provided with an adhesive layer for bonding the bottom surface of the transduction piece.
Still further, the first damping layer top is equipped with the arc concave surface, the bottom of second damping layer be equipped with the spacing arc convex surface of arc concave surface.
Still further, first hold the chamber with the second holds and is equipped with the step face between the chamber, the bottom surface laminating of circuit board the step face sets up.
Furthermore, the outer wall of the shell is also provided with a positioning boss for limiting the installation of the tail gas treatment system.
Furthermore, the first damping layer and the second damping layer are encapsulated by rubber or plastic.
Still further, the thickness of the first damping layer and the second damping layer is between 1mm and 4 mm.
Still further, the transduction piece and the first receiving cavity are coaxially disposed.
Further, the circuit board is provided with a welding spot for connecting with the signal wire.
A second aspect of the utility model provides a sensor comprising the sensor probe structure of any one of the first aspects.
Compared with the prior art, the sensor and the sensor probe structure have the beneficial effects that: the first damping layer is arranged to seal the transduction piece, so that the tightness of the sensor is improved, the influence of vibration and noise on the transduction piece is reduced, and the measurement accuracy of the sensor is improved; in addition, be equipped with the second damping layer, seal circuit board and signal line, adopt multiple sealing, further promoted the sealing performance of sensor probe, avoid the sensor to become invalid.
Drawings
FIG. 1 is a cross-sectional view of a sensor probe structure according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of a housing of a sensor probe structure according to an embodiment of the present utility model;
FIG. 3 is a cross-sectional view of a first damping layer of a sensor probe structure of an embodiment of the present utility model;
FIG. 4 is a cross-sectional view of a second damping layer of a sensor probe structure of an embodiment of the present utility model;
in the figure, 1, a shell; 11. a first accommodation chamber; 12. a second accommodation chamber 13, a step surface; 14. positioning the boss; 2. a first damping layer; 21. an arc-shaped concave surface; 3. a transduction piece; 4. a circuit board; 41. welding spots; 5. a signal line; 6. a second damping layer; 61. an arcuate convex surface; 7. and an adhesive layer.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc. in the present utility model are based on the positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices and elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be understood that the terms "first", "second", etc. are used in the description of various information, but the information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the utility model.
As shown in fig. 1, a first aspect of the preferred embodiment of the present utility model provides a sensor probe structure, including a housing 1, where the housing 1 is used for being connected with a container for containing a liquid to be measured, the upper end of the housing 1 is open and the interior is hollow, a first accommodating cavity 11 and a second accommodating cavity 12 are sequentially provided in the housing 1 from bottom to top, in order to reduce the influence of vibration and noise on a transducer sheet 3, and seal the transducer sheet 3 at the same time, a first damping layer 2 is encapsulated in the first accommodating cavity 11, the transducer sheet 3 is embedded in the first damping layer 2, and the transducer sheet 3 is used as an ultrasonic sensor, and can generate an ultrasonic signal and receive an ultrasonic reflection signal; the bottom surface of transducing piece 3 and the bottom surface laminating of first chamber 11 that holds are equipped with in the second holds chamber 12 and hold circuit board 4 that the piece 3 electricity is connected with, and circuit board 4 top is connected with signal line 5, and signal line 5 is used for external controller electricity to be connected, for improving circuit board 4 and signal line 5's sealed effect, be convenient for fixed circuit board 4 simultaneously, and circuit board 4 and second hold and hold the second damping layer 6 of passing through the embedment between the chamber 12 and fix.
When the sensor probe is used, the transducer 3 can generate ultrasonic signals when water and gas pass through the sensor probe, meanwhile, the ultrasonic signals can pass through the shell 1 and are reflected by a container for containing liquid to be measured, the transducer receives ultrasonic reflected signals, the transducer is connected with an external controller through a signal wire 5, the ultrasonic signals and the ultrasonic reflected signals are processed, for example, the interval time between the ultrasonic signals and the ultrasonic reflected signals is calculated, and the concentration of the corresponding liquid is measured.
In order to avoid the movement of the transduction piece 3 when the first damping layer is poured, the bottom surface of the first accommodating cavity 11 is further provided with an adhesive layer 7 for attaching the bottom surface of the transduction piece 3, and in this embodiment, the adhesive layer 7 is made of a patch adhesive, and the transduction piece 3 and the first accommodating cavity 11 are coaxially arranged.
After the first damping layer 2 is sealed, the second damping layer 6 is filled and sealed, so that the second damping layer 6 is filled and sealed conveniently, as shown in fig. 3 and 4, the top of the first damping layer 2 is provided with an arc concave surface 21, and the bottom of the second damping layer 6 is provided with an arc convex surface 61 limited by the arc concave surface 21. The first damping layer 2 and the second damping layer 6 are encapsulated by rubber or plastic, in this embodiment, the first damping layer 2 and the second damping layer 6 are both made of epoxy resin or silica gel or polyurethane, the shore a hardness range is 50-98, and further, the thickness of the first damping layer 2 and the second damping layer 6 is 1mm-4 mm.
Further, in order to facilitate the installation and limit of the circuit board 4, as shown in fig. 2, a step surface 13 is arranged between the first accommodating cavity 11 and the second accommodating cavity 12, and the bottom surface of the circuit board 4 is attached to the step surface 13; in order to facilitate the positioning during the installation of the sensor probe, the outer wall of the shell 1 is also provided with a positioning boss 14 for installation limit.
In order to further improve the connection strength between the circuit board 4 and the signal line 5, the circuit board 4 and the signal line 5 are fixed by welding, and the circuit board 4 is provided with a welding point 41 for connecting with the signal line 5.
The second aspect of the present utility model also provides a sensor comprising the sensor probe structure of any of the first aspects, having all the advantages of the sensor structure due to the inclusion of the sensor structure of the first aspect, which is not herein set forth in any way.
The working process of the utility model is as follows: when the water vapor passes through the sensor probe, the transducer 3 can generate an ultrasonic signal, and the ultrasonic signal can pass through the shell 1 and reflect through a container for containing liquid to be measured, the transducer receives an ultrasonic reflected signal, and is connected with an external controller through the signal wire 5 to process the ultrasonic signal and the ultrasonic reflected signal, for example, the corresponding liquid concentration is measured by calculating the interval time between the ultrasonic signal and the ultrasonic reflected signal.
In summary, the embodiment of the utility model provides an exhaust gas treatment system and a sensor structure, which are provided with a first damping layer for sealing a transduction piece, so that the tightness of the sensor is improved, the influence of vibration and noise on the transduction piece is reduced, and the measurement accuracy of the sensor is improved; in addition, be equipped with the second damping layer, seal circuit board and signal line, adopt multiple sealing, further promoted the sealing performance of sensor, avoid the sensor to become invalid.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.
Claims (10)
1. A sensor probe structure, characterized in that: including casing (1), casing (1) upper end opening and inside cavity, be equipped with first chamber (11) and second chamber (12) are held by supreme holding down in casing (1) in proper order, first damping layer (2) have been filled and sealed in holding chamber (11), first damping layer (2) are embedded to be equipped with transduction piece (3), transduction piece (3) the bottom surface with first bottom surface laminating that holds chamber (11), the second hold be equipped with in chamber (12) with circuit board (4) that transduction piece (3) electricity is connected, circuit board (4) top is connected with signal line (5), circuit board (4) with the second holds between chamber (12) through the second damping layer (6) of embedment and fixes.
2. The sensor probe structure of claim 1, wherein: the bottom surface of the first accommodating cavity (11) is also provided with an adhesive layer (7) for bonding the bottom surface of the transduction piece (3).
3. The sensor probe structure of claim 1, wherein: the top of the first damping layer (2) is provided with an arc concave surface (21), and the bottom of the second damping layer (6) is provided with an arc convex surface (61) limited by the arc concave surface (21).
4. The sensor probe structure of claim 1, wherein: a step surface (13) is arranged between the first accommodating cavity (11) and the second accommodating cavity (12), and the bottom surface of the circuit board (4) is attached to the step surface (13).
5. The sensor probe structure of claim 1, wherein: the outer wall of the shell (1) is also provided with a positioning boss (14) for limiting the installation of the tail gas treatment system.
6. The sensor probe structure of claim 1, wherein: the first damping layer (2) and the second damping layer (6) are encapsulated by rubber or plastic.
7. The sensor probe structure of claim 1, wherein: the thickness of the first damping layer (2) and the second damping layer (6) is between 1mm and 4 mm.
8. The sensor probe structure of claim 1, wherein: the transduction piece (3) and the first receiving cavity (11) are coaxially arranged.
9. The sensor probe structure of claim 1, wherein: the circuit board (4) is provided with a welding point (41) for connecting with the signal wire (5).
10. A sensor, characterized in that: a probe structure comprising the sensor of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321593627.3U CN220104954U (en) | 2023-06-21 | 2023-06-21 | Sensor and sensor probe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321593627.3U CN220104954U (en) | 2023-06-21 | 2023-06-21 | Sensor and sensor probe structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220104954U true CN220104954U (en) | 2023-11-28 |
Family
ID=88843039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321593627.3U Active CN220104954U (en) | 2023-06-21 | 2023-06-21 | Sensor and sensor probe structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220104954U (en) |
-
2023
- 2023-06-21 CN CN202321593627.3U patent/CN220104954U/en active Active
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