Packaging structure of high-precision flow measurement transducer

Abstract

The utility model discloses a packaging structure of a high-precision flow measuring transducer, which relates to the technical field of transducers and comprises a transducer main body, a sleeve arranged on the surface of one end of the transducer main body and an ultrasonic probe fixedly connected to the surface of one end of the sleeve. A packaging mechanism is arranged on the outer surface of the transducer main body, the mounting and dismounting mechanism comprises a mounting unit fixedly mounted at one end of the ultrasonic probe, and a heat-resistant unit is arranged in the mounting unit. The first packaging shell and the second packaging shell are connected in a clamped mode through the butt joint block, clamping connection between the first packaging shell and the second packaging shell is facilitated through the design of the limiting holes, a transducer is packaged in the limiting holes, and then noise generated by the transducer is absorbed conveniently through cooperation between the honeycomb noise reduction plate and the noise reduction pad. And the use efficiency of the transducer is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transducers, in particular to a packaging structure of a high-precision flow measurement transducer. Background Art

[0002] In the field of industrial automation, scientific and reasonable adjustment and control of pipeline systems require accurate measurement of the medium flow and velocity in the pipeline to understand the situation of the fluid medium in the pipeline. This transducer is a new structure developed by our company based on the current situation of pipeline fluid medium measurement. Main function: convert the input electrical power into mechanical power (i.e. ultrasonic wave) and then transmit it out, which can measure the medium flow and velocity in the pipeline, and can also detect pipeline leakage. At the same time, it has a simple structure and can withstand high pressure.

[0003] In the existing technology, a transducer packaging structure with a publication number of CN218145868U is proposed, which belongs to the field of transducer packaging technology, and includes a substrate and a shell fixed to the substrate, a MEMS chip fixed to the substrate is arranged in the shell, and an ASIC chip packaged in a lead frame structure is also arranged in the shell, the ASIC chip is fixed on the substrate, and the MEMS chip and the ASIC chip are electrically connected to the substrate through gold wires respectively. The ASIC chip of this design adopts a lead frame structure package, which has good light isolation ability, can improve the transducer's anti-light noise ability, and can also reduce the self-inductance coefficient between ASIC pins, and improve the transducer's anti-radio interference ability. At the same time, the lead frame structure package can effectively fix the gold wire on the ASIC chip, thereby improving the quality and reliability of the transducer.

[0004] In order to solve the problem that during the actual use of the packaging mechanism, the COB binding glue is black soft glue, the light isolation ability is insufficient, and the transducer's anti-light noise ability is poor, the existing technology uses ASIC chips to be packaged using a lead frame structure. However, there are still certain disadvantages in the existing packaging shell, the electromagnetic shielding performance of the shell is poor, and the fixation between them is not reliable, which leads to the problem of reduced utilization efficiency of the packaging mechanism. Utility Model Content

[0005] The purpose of the utility model is to provide a packaging structure of a high-precision flow measurement transducer to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A packaging structure of a high-precision flow measurement transducer comprises a transducer body.

[0008] A sleeve is arranged on the surface of one end of the transducer body.

[0009] and an ultrasonic probe fixedly connected to the surface of one end of the sleeve, wherein the surface of one end of the ultrasonic probe is provided with a mounting and disassembly mechanism, the outer surface of the transducer body is provided with a packaging mechanism, the mounting and disassembly mechanism includes a mounting unit fixedly installed at one end of the ultrasonic probe, a heat-resistant unit is provided inside the mounting unit, and the packaging mechanism includes a packaging unit provided on the outer surface of the transducer body, and a noise reduction unit is fixedly installed inside the packaging unit.

[0010] A further improvement of the technical solution of the utility model is that the transducer body includes a pre-tightening bolt arranged on the surface of one end of the transducer body, and a rotation-stop rod is arranged at one end of the pre-tightening bolt, and the rotation-stop rod is fixedly installed at one end of the transducer body.

[0011] A further improvement of the technical solution of the utility model is that a thread groove is provided on the surface of the anti-rotation rod, a clamping plate is fixedly connected to the inner wall of the thread groove, and a clamping nut is fixedly installed at one end of the anti-rotation rod.

[0012] A further improvement of the technical solution of the utility model is that the installation unit comprises a connecting shell for fixing one end of the ultrasonic probe, the outer surface of the connecting shell is provided with a slot, and the inner wall surface of the slot is clamped with a mounting cover.

[0013] A further improvement of the technical solution of the utility model is that: the heat-resistant unit includes a heat-resistant O-ring 1 arranged on the surface of the mounting cover plate, a sealing ring 1 is fixedly installed on the surface of the heat-resistant O-ring 1, a heat-resistant O-ring 2 is fixedly connected to the inner wall surface of the connecting sleeve, a sealing ring 2 is arranged on one side of the surface of the heat-resistant O-ring 2, and the outer surface of the sealing ring 2 is fixedly connected to the inner wall surface of the connecting sleeve.

[0014] A further improvement of the technical solution of the utility model is that the packaging unit includes a packaging shell 1 arranged on the outer surface of the transducer body, the bottom surface of the packaging shell 1 is clamped with a packaging shell 2, and the outer surfaces of the packaging shell 1 and the packaging shell 2 are both provided with limiting holes, and the interior of the limiting hole is clamped with the outer surface of the clamping plate.

[0015] A further improvement of the technical solution of the utility model lies in that: the noise reduction unit includes a honeycomb noise reduction plate fixedly installed on the inner wall surfaces of packaging shell one and packaging shell two, a sound-absorbing pad is fixedly installed on the surface of the honeycomb noise reduction plate, and a docking block is fixedly connected to the top surface of packaging shell two, and one end surface of the docking block is clamped with the bottom surface of packaging shell one.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides a packaging structure of a high-precision flow measurement transducer, which is convenient for installing and disassembling an ultrasonic probe through the design of a connecting shell and a mounting cover plate, and through the design of a heat-resistant O-ring 1 and a heat-resistant O-ring 2, the heat resistance of the ultrasonic probe is improved, thereby increasing the service life of the ultrasonic probe, and through the cooperation between the sealing ring 1 and the sealing ring 2, the sealing effect of the ultrasonic probe is improved, which effectively prevents external dust particles from entering therein and affecting it, thereby improving the utilization efficiency of the transducer.

[0018] 2. The utility model provides a packaging structure of a high-precision flow measurement transducer, which utilizes a docking block to clamp the packaging shell one and the packaging shell two, and the design of the limiting hole facilitates the clamping connection with the clamping plate, so that the transducer is packaged therein, and then, through the cooperation between the honeycomb noise reduction plate and the silencer pad, the noise generated by the transducer is absorbed, thereby improving the use efficiency of the transducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a three-dimensional schematic diagram of the structural transducer of the utility model;

[0021] Figure 3 It is a three-dimensional schematic diagram of the structural installation and disassembly mechanism of the utility model;

[0022] Figure 4 It is a three-dimensional schematic diagram of the structural packaging mechanism of the utility model.

[0023] In the figure: 1. transducer body; 101. pre-tightening bolt; 102. anti-rotation rod; 103. clamping plate; 104. clamping nut; 2. sleeve; 3. ultrasonic probe; 4. installation and disassembly mechanism; 401. connecting shell; 402. installation cover; 403. heat-resistant O-ring 1; 404. sealing ring 1; 405. heat-resistant O-ring 2; 406. sealing ring 2; 5. packaging mechanism; 501. packaging shell 1; 502. packaging shell 2; 503. limiting hole; 504. docking block; 505. honeycomb noise reduction plate; 506. sound-absorbing pad. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the embodiments:

[0025] Example 1

[0026] like Figure 1-4As shown, the utility model provides a packaging structure of a high-precision flow measurement transducer, including a transducer body 1, a sleeve 2 arranged on the surface of one end of the transducer body 1, and an ultrasonic probe 3 fixedly connected to the surface of one end of the sleeve 2, a mounting and disassembly mechanism 4 is arranged on the surface of one end of the ultrasonic probe 3, a packaging mechanism 5 is arranged on the outer surface of the transducer body 1, the mounting and disassembly mechanism 4 includes a mounting unit fixedly installed on one end of the ultrasonic probe 3, a heat-resistant unit is arranged inside the mounting unit, the packaging mechanism 5 includes a packaging unit arranged on the outer surface of the transducer body 1, and the inside of the packaging unit A noise reduction unit is fixedly installed, and the transducer body 1 includes a pre-tightening bolt 101 arranged on the surface of one end of the transducer body 1, and a anti-rotation rod 102 is arranged at one end of the pre-tightening bolt 101, and the anti-rotation rod 102 is fixedly installed on one end of the transducer body 1, and a thread groove is opened on the surface of the anti-rotation rod 102, and a clamping plate 103 is fixedly connected to the inner wall of the thread groove, and a clamping nut 104 is fixedly installed at one end of the anti-rotation rod 102, and the anti-rotation rod 102 is connected and fixed with the inside of the clamping nut 104, and after rotation, the clamping plate 103 and the limiting hole 503 are formed into a clamping limit.

[0027] Example 2

[0028] like Figure 1-4 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the installation unit includes a connecting shell 401 for fixing one end of the ultrasonic probe 3, the outer surface of the connecting shell 401 is provided with a card slot, the inner wall surface of the card slot is clamped with a mounting cover 402, the heat-resistant unit includes a heat-resistant O-ring 1 403 arranged on the surface of the mounting cover 402, the surface of the heat-resistant O-ring 1 403 is fixedly installed with a sealing ring 1 404, the inner wall surface of the connecting shell 401 is fixedly connected with a heat-resistant O-ring 2 405, and one side of the surface of the heat-resistant O-ring 2 405 is provided with a sealing ring The outer surface of the sealing ring 406 is fixedly connected to the inner wall surface of the connecting shell 401. The connecting shell 401 and the mounting cover 402 are designed to facilitate the installation and disassembly of the ultrasonic probe 3. The heat-resistant O-ring 1 403 and the heat-resistant O-ring 2 405 are designed to improve the heat resistance of the ultrasonic probe 3, thereby improving the service life of the ultrasonic probe 3. The cooperation between the sealing ring 1 404 and the sealing ring 2 406 improves the sealing effect of the ultrasonic probe 3, thereby effectively preventing external dust particles from entering therein and affecting it.

[0029] Example 3

[0030] like Figure 1-4As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the packaging unit includes a packaging shell 1 501 arranged on the outer surface of the transducer body 1, the bottom surface of the packaging shell 1 501 is clamped with the packaging shell 2 502, the outer surfaces of the packaging shell 1 501 and the packaging shell 2 502 are both provided with a limiting hole 503, the interior of the limiting hole 503 is clamped with the outer surface of the clamping plate 103, the noise reduction unit includes a honeycomb noise reduction plate 505 fixedly installed on the inner wall surface of the packaging shell 1 501 and the packaging shell 2 502, and the honeycomb noise reduction plate A sound-absorbing pad 506 is fixedly installed on the surface of 505, and a docking block 504 is fixedly connected to the top surface of the packaging shell 2 502. One end surface of the docking block 504 is snap-fitted with the bottom surface of the packaging shell 1 501. The packaging shell 1 501 and the packaging shell 2 502 are snap-fitted together by the docking block 504. The design of the limiting hole 503 facilitates the snap-fitting with the clamping plate 103, so that the transducer is encapsulated therein. Then, the honeycomb noise reduction plate 505 and the sound-absorbing pad 506 cooperate with each other to absorb the noise generated by the transducer.

[0031] The following is a detailed description of the working principle of the packaging structure of the high-precision flow measurement transducer.

[0032] like Figure 1-4 As shown, firstly, by connecting the shell 401 and the mounting cover plate 402, the installation and disassembly of the ultrasonic probe 3 is facilitated, and by the design of the heat-resistant O-ring 1 403 and the heat-resistant O-ring 2 405, the heat resistance of the ultrasonic probe 3 is improved, thereby improving the service life of the ultrasonic probe 3, and by the cooperation between the sealing ring 1 404 and the sealing ring 2 406, the sealing effect of the ultrasonic probe 3 is improved, and the external dust particles are effectively prevented from entering therein and affecting it. Secondly, by using the docking block 504, the packaging shell 1 501 and the packaging shell 2 502 are snap-connected, and by the design of the limiting hole 503, it is convenient to snap-connect with the clamping plate 103, so that the transducer is encapsulated therein, and then, by the cooperation between the honeycomb noise reduction plate 505 and the silencer pad 506, the noise generated by the transducer is absorbed.

[0033] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A packaging structure of a high-precision flow measurement transducer, comprising a transducer body (1); A sleeve (2) disposed on the surface of one end of the transducer body (1); and an ultrasonic probe (3) fixedly connected to the surface of one end of the sleeve (2), characterized in that: A mounting and disassembly mechanism (4) is provided on one end surface of the ultrasonic probe (3), and a packaging mechanism (5) is provided on the outer surface of the transducer body (1). The mounting and disassembly mechanism (4) comprises a mounting unit fixedly mounted on one end of the ultrasonic probe (3), and a heat-resistant unit is provided inside the mounting unit. The packaging mechanism (5) comprises a packaging unit provided on the outer surface of the transducer body (1), and a noise reduction unit is fixedly installed inside the packaging unit.

2. The packaging structure of a high-precision flow measurement transducer according to claim 1, characterized in that: The transducer body (1) comprises a pre-tightening bolt (101) arranged on the surface of one end of the transducer body (1), and a rotation-stopping rod (102) is arranged at one end of the pre-tightening bolt (101), and the rotation-stopping rod (102) is fixedly mounted on one end of the transducer body (1).

3. The packaging structure of a high-precision flow measurement transducer according to claim 2, characterized in that: A thread groove is formed on the surface of the anti-rotation rod (102), a clamping plate (103) is fixedly connected to the inner wall of the thread groove, and a clamping nut (104) is fixedly mounted on one end of the anti-rotation rod (102).

4. The packaging structure of a high-precision flow measurement transducer according to claim 1, characterized in that: The mounting unit comprises a connecting sleeve (401) for fixing one end of the ultrasonic probe (3), the outer surface of the connecting sleeve (401) is provided with a slot, and the inner wall surface of the slot is clamped with a mounting cover plate (402).

5. The packaging structure of a high-precision flow measurement transducer according to claim 4, characterized in that: The heat-resistant unit comprises a heat-resistant O-ring 1 (403) arranged on the surface of the mounting cover plate (402), a sealing ring 1 (404) being fixedly mounted on the surface of the heat-resistant O-ring 1 (403), a heat-resistant O-ring 2 (405) being fixedly connected to the inner wall surface of the connecting sleeve (401), a sealing ring 2 (406) being arranged on one side of the surface of the heat-resistant O-ring 2 (405), and an outer surface of the sealing ring 2 (406) being fixedly connected to the inner wall surface of the connecting sleeve (401).

6. The packaging structure of a high-precision flow measurement transducer according to claim 3, characterized in that: The packaging unit comprises a packaging shell 1 (501) arranged on the outer surface of the transducer body (1), the bottom surface of the packaging shell 1 (501) is clamped with a packaging shell 2 (502), and the outer surfaces of the packaging shell 1 (501) and the packaging shell 2 (502) are both provided with limiting holes (503), and the interior of the limiting hole (503) is clamped with the outer surface of the clamping plate (103).

7. The packaging structure of a high-precision flow measurement transducer according to claim 6, characterized in that: The noise reduction unit comprises a honeycomb noise reduction plate (505) fixedly mounted on the inner wall surfaces of the first packaging shell (501) and the second packaging shell (502); a sound-absorbing pad (506) is fixedly mounted on the surface of the honeycomb noise reduction plate (505); a docking block (504) is fixedly connected to the top surface of the second packaging shell (502); and one end surface of the docking block (504) is snap-fitted to the bottom surface of the first packaging shell (501).

Images