CN220018636U - Ultrasonic flowmeter - Google Patents
Ultrasonic flowmeter Download PDFInfo
- Publication number
- CN220018636U CN220018636U CN202320798794.5U CN202320798794U CN220018636U CN 220018636 U CN220018636 U CN 220018636U CN 202320798794 U CN202320798794 U CN 202320798794U CN 220018636 U CN220018636 U CN 220018636U
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- transduction
- circuit board
- mounting groove
- metering circuit
- fixed
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- 230000026683 transduction Effects 0.000 claims abstract description 75
- 238000010361 transduction Methods 0.000 claims abstract description 75
- 239000000565 sealant Substances 0.000 claims abstract description 12
- 239000003292 glue Substances 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 210000005069 ears Anatomy 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005538 encapsulation Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The utility model discloses an ultrasonic flowmeter, which removes a silica gel ring, a fixed plate and screws, directly uses sealant for encapsulation, simplifies the structure, can reduce the steps of process assembly, improves the production efficiency, and further solves the problems existing in the prior art. The utility model relates to an ultrasonic flowmeter, which comprises a measuring pipeline 1, a reflecting sheet 2 arranged in the measuring pipeline 1, two transduction modules 3, a metering circuit board 4 and a wire 5 which are connected in sequence; the top of the measuring pipeline 1 is provided with a mounting groove 11, and the bottom of the inner side of the mounting groove is provided with two fixing grooves 12; a limiting step 13 is further arranged in the mounting groove 11, the metering circuit board 4 is mounted on the limiting step 13, and the metering circuit board 4 and the transduction module 3 are sequentially arranged in the mounting groove 11 from top to bottom; the transduction module 3 is installed on the fixed slot 12 and is arranged opposite to the reflecting sheet 2; the top of the metering circuit board 4 is encapsulated by sealant.
Description
Technical Field
The utility model relates to the technical field of sensors, in particular to an ultrasonic flowmeter.
Background
In flow test, the ultrasonic technology is used as a new measurement technology, and is increasingly widely applied, and the ultrasonic flowmeter has the advantages of high test precision and wide test range, but the current ultrasonic flowmeter has the defect of high cost, so that the ultrasonic flowmeter is difficult to popularize in a large range.
The main components of the current ultrasonic flowmeter comprise an ultrasonic transducer, a pipeline for bearing the circulation of the measured substances, a silica gel ring, a metal fixing plate, screws, a metering circuit board and a metal sheet for reflecting signals. The ultrasonic transducer is arranged in a pipeline with the reflection metal sheet assembled in advance after the sealing ring is arranged, the ultrasonic transducer is fixed on the pipeline by using the fixing plate and the screw, and the signal wire of the transducer is welded on the circuit board, so that the transmission of measurement signals is realized.
The mode at least needs two already packaged ultrasonic sensors and corresponding sealing rubber rings, and meanwhile needs screws to lock the fixing plate, and if necessary, another protective shell is needed to seal and protect the circuit board. The ultrasonic flowmeter in the prior art has the advantages of more structural parts, high cost, complex assembly process and low production efficiency.
Therefore, how to design and improve the structure of the existing ultrasonic flowmeter to solve the above-mentioned drawbacks is an important technical problem to be solved by those skilled in the art.
Disclosure of Invention
The utility model discloses an ultrasonic flowmeter, which removes a silica gel ring, a fixed plate and screws, directly uses sealant for encapsulation, simplifies the structure, can reduce the steps of process assembly, improves the production efficiency, and further solves the problems existing in the prior art.
The utility model provides an ultrasonic flowmeter, which comprises a measuring pipeline 1, a reflecting sheet 2 arranged in the measuring pipeline 1, two transduction modules 3, a metering circuit board 4 and a wire 5 which are connected in sequence;
the top of the measuring pipeline 1 is provided with a mounting groove 11, and the bottom of the inner side of the mounting groove is provided with two fixing grooves 12;
a limiting step 13 is further arranged in the mounting groove 11, the metering circuit board 4 is mounted on the limiting step 13, and the metering circuit board 4 and the transduction module 3 are sequentially arranged in the mounting groove 11 from top to bottom;
the transduction module 3 is installed on the fixed slot 12 and is arranged opposite to the reflecting sheet 2;
the top of the metering circuit board 4 is encapsulated by sealant.
Preferably, the method comprises the steps of,
the transduction module 3 comprises a piezoelectric transduction piece 31, a transduction piece circuit board 32 and a transduction connecting piece 33 which are sequentially connected and sequentially arranged from bottom to top;
the bottom of the piezoelectric transduction piece 31 is arranged in the fixed groove 12 through an adhesive medium, and the transduction piece circuit board 32 is connected with the metering circuit board 4 through a transduction connecting piece 33.
Preferably, the method comprises the steps of,
the bonding medium is adhesive tape or glue.
Preferably, the method comprises the steps of,
the transduction piece circuit board 32 is of a circular ring structure, and two fixing lugs are arranged on the circular ring structure;
the fixed lugs are provided with transduction connectors 33.
Preferably, the method comprises the steps of,
the transduction connector 33 is a pin;
the fixed lugs are arranged oppositely on the circular ring structure, and bonding pads are arranged on the circular ring structure and the fixed lugs.
Preferably, the method comprises the steps of,
the fixed groove 12 is a flat-bottom U-shaped groove, and the piezoelectric transduction piece 31 is arranged in the flat-bottom U-shaped groove;
the transduction tab circuit board 32 is mounted on top of the flat-bottomed U-shaped groove, and the flat-bottomed U-shaped groove top is further provided with a rib 121 to fix the transduction tab circuit board 32.
Preferably, the method comprises the steps of,
the rib 121 is matched with the fixed lug;
the rib 121 has a circular arc structure.
Preferably, the method comprises the steps of,
the plane at the bottom of the fixed slot 12 is defined as a plane A, and the plane in the measuring pipeline 1, which is closely attached to the fixed slot 12, is defined as a plane B, wherein the plane A is parallel to the plane B.
Preferably, the method comprises the steps of,
the measuring pipe 1 is made of plastic, and two ends of the measuring pipe are provided with thread structures.
The ultrasonic flowmeter comprises a measuring pipeline 1, a reflecting sheet 2 arranged in the measuring pipeline 1, two transduction modules 3, a metering circuit board 4 and a wire 5 which are connected in sequence; the top of the measuring pipeline 1 is provided with a mounting groove 11, and the bottom of the inner side of the mounting groove is provided with two fixing grooves 12; a limiting step 13 is further arranged in the mounting groove 11, the metering circuit board 4 is mounted on the limiting step 13, and the metering circuit board 4 and the transduction module 3 are sequentially arranged in the mounting groove 11 from top to bottom; the transduction module 3 is installed on the fixed slot 12 and is arranged opposite to the reflecting sheet 2; the top of the metering circuit board 4 is encapsulated by sealant. According to the ultrasonic flowmeter, the silica gel ring, the fixing plate and the screws are removed, and the sealing glue is directly used for filling and sealing, so that the structure is simplified, the steps of process assembly can be reduced, the production efficiency is improved, and the problems in the prior art are further solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of an embodiment of an ultrasonic flow meter according to the present utility model;
FIG. 2 is a schematic cross-sectional view of another embodiment of an ultrasonic flow meter according to the present utility model;
FIG. 3 is a front view of an embodiment of an ultrasonic flow meter of the present utility model;
FIG. 4 is a top view block diagram of an embodiment of an ultrasonic flow meter of the present utility model;
FIG. 5 is a schematic diagram of the transducer circuit board 32 in an embodiment of the ultrasonic flowmeter of the present utility model;
FIG. 6 is a schematic diagram of the connection of the transducer circuit board 32 and the transducer connector 33 in an embodiment of the ultrasonic flowmeter according to the present utility model;
fig. 7 is a schematic structural view of a piezoelectric transducer 31 in an embodiment of an ultrasonic flowmeter according to the present utility model.
Detailed Description
The utility model discloses an ultrasonic flowmeter, which removes a silica gel ring, a fixed plate and screws, directly uses sealant for encapsulation, simplifies the structure, can reduce the steps of process assembly, improves the production efficiency, and further solves the problems existing in the prior art.
The following description of the embodiments of the present utility model will be made with reference to the accompanying drawings, in which it is evident that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. Referring to fig. 1 to 7, an ultrasonic flowmeter provided by an embodiment of the present utility model includes a measurement pipe 1, a reflective sheet 2 disposed in the measurement pipe 1, and two transduction modules 3, a measurement circuit board 4 and a wire 5 sequentially connected;
the top of the measuring pipeline 1 is provided with a mounting groove 11, and the bottom of the inner side of the mounting groove is provided with two fixing grooves 12;
a limiting step 13 is further arranged in the mounting groove 11, the metering circuit board 4 is mounted on the limiting step 13, and the metering circuit board 4 and the transduction module 3 are sequentially arranged in the mounting groove 11 from top to bottom;
the transduction module 3 is installed on the fixed slot 12 and is arranged opposite to the reflecting sheet 2;
the top of the metering circuit board 4 is encapsulated by sealant.
In the utility model, the transduction module 3 is arranged on the fixed groove 12 and is arranged opposite to the reflecting plate 2, the top of the metering circuit board 4 is encapsulated by the sealant 6, the transduction module 3 is connected with the metering circuit board 4, namely, the transduction module 3 and the metering circuit board 4 are integrally encapsulated in the mounting groove 11 by the sealant, and parts such as a silica gel ring, a screw, a sealing plate and the like in the prior art are not needed; the transduction module 3 is arranged opposite to the reflecting sheet 2, and can receive the reflected signal to realize flow measurement.
Preferably, the method comprises the steps of,
the transduction module 3 comprises a piezoelectric transduction piece 31, a transduction piece circuit board 32 and a transduction connecting piece 33 which are sequentially connected and sequentially arranged from bottom to top;
the bottom of the piezoelectric transduction piece 31 is arranged in the fixed groove 12 through an adhesive medium, and the transduction piece circuit board 32 is connected with the metering circuit board 4 through a transduction connecting piece 33.
Preferably, the method comprises the steps of,
the bonding medium 34 is a glue or glue.
It should be noted that, the piezoelectric transduction piece 31 may be fixedly mounted in the fixing groove 12 through an adhesive medium, specifically, may be a glue paste or glue, and then is connected with the metering circuit board 4 through the transduction connecting piece 33, and the top of the metering circuit board 4 is encapsulated by a sealant, so that the overall fixed mounting can be realized.
Preferably, the method comprises the steps of,
the transduction piece circuit board 32 is of a circular ring structure, and two fixing lugs are arranged on the circular ring structure;
the fixed lugs are provided with transduction connectors 33.
It should be noted that, the transduction piece circuit board 32 may be a complete circle or a ring, at least 4 bonding pads 321 are reserved, where 2 bonding pads are respectively welded with the anode and the cathode of the piezoelectric transduction piece 31, and the other 2 bonding pads are used for conducting the medium to weld the metering circuit board 4, specifically, an annular circuit board may be adopted, one surface of the annular circuit board is provided with bonding pads and the piezoelectric transduction piece 31 to realize welding, the corresponding anode and the cathode are respectively reserved with holes welded with pins, the pins realize conducting with the piezoelectric transduction piece 31, and the connection is not limited herein.
Preferably, the method comprises the steps of,
the transduction connector 33 is a pin;
the fixed lugs are arranged oppositely on the circular ring structure, and bonding pads are arranged on the circular ring structure and the fixed lugs.
Preferably, the method comprises the steps of,
the fixed groove 12 is a flat-bottom U-shaped groove, and the piezoelectric transduction piece 31 is arranged in the flat-bottom U-shaped groove;
the transduction tab circuit board 32 is mounted on top of the flat-bottomed U-shaped groove, and the flat-bottomed U-shaped groove top is further provided with a rib 121 to fix the transduction tab circuit board 32.
Preferably, the method comprises the steps of,
the rib 121 is matched with the fixed lug;
the rib 121 has a circular arc structure.
The measuring pipeline 1 is internally assembled with a measuring circuit board 4, wherein the part of the measuring circuit board 4 is provided with a rib 121 and a step plane, the rib 121 is used for fastening the measuring circuit board 4 in an interference manner.
Preferably, the method comprises the steps of,
the plane at the bottom of the fixed slot 12 is defined as a plane A, and the plane in the measuring pipeline 1, which is closely attached to the fixed slot 12, is defined as a plane B, wherein the plane A is parallel to the plane B.
The plane where the piezoelectric transduction piece 31 is bonded is parallel to the plane inside the measurement pipe 1, and the plane a is parallel to the plane B, so that uniform transmission of sound waves is achieved. The sound wave of the piezoelectric transduction piece 31 on one transduction module 3 is transmitted to the first reflecting plate 21 with angle through the attaching surface and is transmitted to the second reflecting plate 22 with angle, and then is transmitted to the piezoelectric transduction piece 31 on the other transduction module 3 through the pipeline plane, so that the sound wave transmission is realized.
Preferably, the method comprises the steps of,
the measuring pipe 1 is made of plastic, and two ends of the measuring pipe are provided with thread structures.
From the above description, it is apparent that the ultrasonic flowmeter of the present utility model has the following advantages: 1. the piezoelectric transduction piece is used for replacing a transducer packaged with the piezoelectric transduction piece, so that the component cost is optimized; 2. the silica gel ring used as the sealing of the transducer is removed, and the screw and the pressing plate used as the fixed transducer are removed. Optimizing the component composition and reducing the process assembly steps; 3. the welding process is simplified, the piezoelectric transduction piece is directly welded on the circuit board through pins to realize signal transmission, and the process efficiency is improved; 4. the independent packaging of the circuit board and the piezoelectric transduction piece is omitted, the integral packaging is realized, the cost can be reduced, and the process efficiency is improved.
The ultrasonic flowmeter comprises a measuring pipeline 1, a reflecting sheet 2 arranged in the measuring pipeline 1, two transduction modules 3, a metering circuit board 4 and a wire 5 which are connected in sequence; the top of the measuring pipeline 1 is provided with a mounting groove 11, and the bottom of the inner side of the mounting groove is provided with two fixing grooves 12; a limiting step 13 is further arranged in the mounting groove 11, the metering circuit board 4 is mounted on the limiting step 13, and the metering circuit board 4 and the transduction module 3 are sequentially arranged in the mounting groove 11 from top to bottom; the transduction module 3 is installed on the fixed slot 12 and is arranged opposite to the reflecting sheet 2; the top of the metering circuit board 4 is encapsulated by sealant. According to the ultrasonic flowmeter, the silica gel ring, the fixing plate and the screws are removed, and the sealing glue is directly used for filling and sealing, so that the structure is simplified, the steps of process assembly can be reduced, the production efficiency is improved, and the problems in the prior art are further solved.
While the utility model has been described in detail with respect to an ultrasonic flow meter, those skilled in the art will recognize that the utility model is not limited to the embodiments and applications described herein.
Claims (9)
1. An ultrasonic flowmeter comprises a measuring pipeline (1) and a reflecting sheet (2) arranged in the measuring pipeline (1), and is characterized by further comprising two transduction modules (3), a metering circuit board (4) and a wire (5) which are connected in sequence;
the top of the measuring pipeline (1) is provided with a mounting groove (11), and the bottom of the inner side of the mounting groove is provided with two fixing grooves (12);
a limiting step (13) is further arranged in the mounting groove (11), the metering circuit board (4) is mounted on the limiting step (13), and the metering circuit board (4) and the transduction module (3) are sequentially arranged in the mounting groove (11) from top to bottom;
the transduction module (3) is arranged on the fixed groove (12) and is arranged opposite to the reflecting sheet (2);
the top of the metering circuit board (4) is encapsulated by sealant.
2. The ultrasonic flowmeter of claim 1, wherein the transduction module (3) comprises a piezoelectric transduction piece (31), a transduction piece circuit board (32) and a transduction connecting piece (33) which are sequentially connected and sequentially arranged from bottom to top;
the bottom of the piezoelectric transduction piece (31) is arranged in the fixed groove (12) through an adhesive medium, and the transduction piece circuit board (32) is connected with the metering circuit board (4) through a transduction connecting piece (33).
3. The ultrasonic flow meter of claim 2, wherein the bonding medium is a glue or glue.
4. The ultrasonic flow meter according to claim 2, wherein the transducer sheet circuit board (32) is of a circular ring structure, and two fixing lugs are provided on the circular ring structure;
the fixed lugs are provided with transduction connectors (33).
5. The ultrasonic flow meter according to claim 4, wherein the transduction connection (33) is a pin;
the fixed lugs are arranged oppositely on the circular ring structure, and bonding pads are arranged on the circular ring structure and the fixed lugs.
6. The ultrasonic flow meter according to claim 5, wherein the fixed slot (12) is a flat bottom U-shaped slot, and the piezoelectric transduction piece (31) is mounted inside the flat bottom U-shaped slot;
the transduction piece circuit board (32) is arranged at the top of the flat-bottom U-shaped groove, and ribs (121) for fixing the transduction piece circuit board (32) are further arranged at the top of the flat-bottom U-shaped groove.
7. The ultrasonic flow meter of claim 6, wherein ribs (121) cooperate with the fixed ears;
the rib (121) has a circular arc structure.
8. The ultrasonic flow meter according to any of the claims 1 to 7, wherein the plane in which the bottom of the fixed slot (12) is defined is plane a, the plane in which the interior of the measuring tube (1) is in close contact with the fixed slot (12) is defined as plane B, said plane a being parallel to said plane B.
9. An ultrasonic flow meter according to claim 8, characterized in that the measuring tube (1) is made of plastic, which is provided with a screw thread structure at both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320798794.5U CN220018636U (en) | 2023-04-11 | 2023-04-11 | Ultrasonic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320798794.5U CN220018636U (en) | 2023-04-11 | 2023-04-11 | Ultrasonic flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220018636U true CN220018636U (en) | 2023-11-14 |
Family
ID=88678429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320798794.5U Active CN220018636U (en) | 2023-04-11 | 2023-04-11 | Ultrasonic flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220018636U (en) |
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2023
- 2023-04-11 CN CN202320798794.5U patent/CN220018636U/en active Active
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