Transduction sensor assembly structure

Abstract

The utility model discloses a transduction sensor assembly structure, which comprises a gauge outfit and a measuring pipeline arranged at the bottom of the gauge outfit, two groups of transducers are arranged on one side of the measuring pipeline positioned on the gauge outfit, the two groups of transducers face the inside of the gauge outfit, a support and a pcb (printed circuit board) positioned above the support are fixedly arranged inside the gauge outfit, and the pcb is arranged on the gauge outfit. The energy converter is located below the support, two metal pins are integrated on the energy converter, through holes matched with the metal pins are formed in the support, the metal pins of the energy converter sequentially upwards penetrate through the through holes and the pcb, and the metal pins are welded to the upper side of the pcb. The beneficial effects of the utility model are that the transducer is more convenient to assemble, and the reliability is improved.

Description

Technical Field

[0001] The utility model relates to an ultrasonic water meter technology, in particular to an energy conversion sensor assembly structure. Background Art

[0002] Ultrasonic water meter is a new type of water meter that uses ultrasonic transducer to detect the time difference caused by the change in speed when the ultrasonic sound beam propagates downstream and upstream in water, analyzes and processes the water flow rate, and further calculates the water flow rate. Compared with mechanical water meters, it has the characteristics of high accuracy, good reliability, wide range ratio, long service life, no moving parts, no need to set parameters, and can be installed at any angle.

[0003] Common ultrasonic transducers are composed of a meter housing, a matching layer, a piezoelectric ceramic disc transducer, a backing, a lead cable, etc., and the installation methods include through-beam and reflective. Among them, for the reflective installation structure, a radial mounting hole for installing the transducer is usually provided on the side wall of the measuring pipe, and the radial mounting hole faces the inside of the meter housing. The PCB board is located in the meter housing. After the transducer is installed in the radial mounting hole, the transducer is connected to the PCB board through a flexible wire. The use of wire transition to connect the transducer has technical defects such as poor assembly convenience and low reliability. Utility Model Content

[0004] In view of this, the utility model provides a transducer sensor assembly structure, aiming to solve the technical defects of poor assembly convenience and low reliability in the transition connection of wires to the transducer.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A transducer sensor assembly structure includes a meter head and a measuring pipe installed at the bottom of the meter head, wherein the measuring pipe is located on one side of the meter head and two groups of transducers are installed, and both groups of transducers face the inside of the meter head, and a bracket and a PCB board located above the bracket are fixed inside the meter head, and the transducer is located below the bracket, and two metal pins are integrated on the transducer, and the bracket is provided with through holes adapted to the metal pins, and the metal pins of the transducer pass through the through holes and the PCB board upward in sequence, and the metal pins are welded to the upper side of the PCB board.

[0007] By adopting the above structure, the connecting wires of the transducer are replaced with metal pins, and the metal pins are welded to the PCB board, so as to improve the convenience of assembly and make the assembly of the transducer more reliable.

[0008] Preferably, a mounting post protruding radially outward is provided on one side of the measuring pipe, the mounting post extends into the interior of the meter head, a mounting hole is provided on the mounting post, and the transducer is fixedly installed in the mounting hole. The above structure is used to fix the transducer.

[0009] As a preference: the mounting column is located below the bracket. With the above structure, the transducer is installed vertically relative to the water flow direction, making the measurement more accurate.

[0010] Preferably, the bracket comprises a metal pin fixing portion, an annular boss, and a connecting frame located between the metal pin fixing portion and the annular boss, and the through hole is arranged in the middle of the metal pin fixing portion. The above structure is adopted to fix and install the metal pin.

[0011] Preferably, a groove is provided at the upper end of the outer wall of the mounting column, and a buckle extending downward is provided on the annular boss, and the buckle cooperates with the groove to achieve the connection between the measuring pipe and the meter head. The above structure is simple and easy to install.

[0012] As a preference, a support step is provided at the lower part of the assembly hole, and the lower end of the transducer is supported on the support step through a gasket. With the above structure, the transducer is firmly installed and the meter head is sealed.

[0013] Preferably, the bracket is integrally formed on the battery mounting plate, and the battery mounting plate is symmetrically provided with two groups of brackets at positions corresponding to the two groups of transducers. The above structure is compact and has high space utilization.

[0014] As a preference, the number of the buckles is at least two. With the above structure, the meter head is firmly connected to the measuring pipe.

[0015] As a preferred embodiment, the outer wall of the mounting column is stepped, and the meter housing is welded to the outer wall of the lower part of the mounting column. The above structure is simple and easy to install.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. Replace the traditional wires with metal pins, fix a bracket inside the meter head, and set a through hole on the bracket so that the pins of the transducer pass through the through hole and are welded to the PCB board, making the assembly simpler and more reliable.

[0018] 2. The measuring pipe is radially protruded with a mounting column, and the inner and outer walls of the mounting column are both stepped. The transducer and the housing of the meter head are mounted in the stepped shape, and the structure is simple. A groove is set on the outer wall of the mounting column, and a buckle extending downward is provided on the annular boss. The buckle and the groove cooperate to connect the measuring pipe and the meter head, and the structure is simple and compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional view of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the table header;

[0021] Figure 3 is a schematic structural diagram of the transducer 1;

[0022] Figure 4 A schematic diagram showing a bracket 5;

[0023] Figure 5 It is a schematic diagram showing the buckle 521 and the groove 411. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with embodiments and drawings.

[0025] like Figure 1 and Figure 2 As shown, a transducer sensor assembly structure includes a meter head B and a measuring pipe C installed at the bottom of the meter head B. The measuring pipe C is a straight pipe, and two groups of transducers 1 are installed on one side of the meter head B. Both groups of transducers 1 face the inside of the meter head B. A bracket 5 and a PCB board 6 located above the bracket 5 are fixed inside the meter head B. The transducer 1 is located below the bracket 5. Two metal pins 2 are integrated on the transducer 1. The bracket 5 is provided with a through hole 511 adapted to the metal pin 2. The metal pin 2 of the transducer 1 passes through the through hole 511 and the PCB board 6 upward in sequence, and the metal pin 2 is welded to the upper side of the PCB board 6. The metal pin 2 is used to connect the transducer 1 to improve the convenience and reliability of assembly.

[0026] In this embodiment, two groups of brackets 5 are symmetrically arranged corresponding to the two groups of transducers 1, and a reflective component is provided inside the measuring pipe C. The two groups of transducers collect ultrasonic signals through the reflective component to achieve the measurement of water flow.

[0027] like Figure 1 and Figure 3 As shown, a mounting column 41 protruding radially outward is provided on one side of the measuring pipe C, the mounting column 41 extends into the interior of the meter head B, and is provided with an assembly hole 413, a support step is provided at the lower part of the assembly hole 413, the lower end of the transducer 1 is supported on the support step by a gasket 412, and is installed in the assembly hole 413, and a simple structure is adopted to realize the sealed and stable installation of the transducer. The mounting column 41 is located below the bracket 5, and the outer wall is stepped, and the meter head housing 7 is welded to the outer wall of the lower part of the mounting column 41.

[0028] like Figure 2 and Figure 4As shown, the bracket 5 includes a metal pin fixing portion 51 and an annular boss 52, and a connecting frame 53 located between the metal pin fixing portion 51 and the annular boss 52. The through hole 511 is provided in the middle of the metal pin fixing portion 51. The bracket 5 is integrally formed on the battery mounting plate 4. The battery mounting plate 4 is symmetrically provided with two groups of brackets 5 at positions corresponding to two groups of transducers 1. The battery mounting plate 4 is located below the PCB board 6, and the annular boss 52 protrudes from the battery mounting plate 4. The metal pin fixing portion 51 is provided on the upper end surface of the annular boss 52 and has a certain thickness, which can stabilize the metal pins 2.

[0029] like Figure 5 As shown, a groove 411 is provided at the upper end of the outer wall of the mounting column 41, and a buckle 521 extending downward is provided on the annular boss 52. There are at least two buckles 521, and the buckles 521 cooperate with the groove 411 to achieve the connection between the measuring pipe C and the meter head B using a simple structure. In this embodiment, there are three buckles, two of which are provided along the circumference of the measuring pipe C, and one is provided along the axial direction close to the inside of the meter head.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make a variety of similar expressions without violating the purpose and claims of the present invention, and such changes fall within the scope of protection of the present invention.

Claims

1. A transducer sensor assembly structure, comprising a meter head (B) and a measuring pipe (C) installed at the bottom of the meter head (B), characterized in that: The measuring pipe (C) is located on one side of the meter head (B) and is equipped with two groups of transducers (1). Both groups of transducers (1) face the inside of the meter head (B). A bracket (5) and a PCB (6) located above the bracket (5) are fixed inside the meter head (B). The transducer (1) is located below the bracket (5). Two metal pins (2) are integrated on the transducer (1). The bracket (5) is provided with through holes (511) adapted to the metal pins (2). The metal pins (2) of the transducer (1) pass through the through holes (511) and the PCB (6) in sequence upwards. The metal pins (2) are welded to the upper side of the PCB (6).

2. The transducer sensor assembly structure according to claim 1, characterized in that: A mounting column (41) protruding radially outward is provided on one side of the measuring pipe (C); the mounting column (41) extends into the interior of the meter head (B); an assembly hole (413) is provided on the mounting column (41); and the transducer (1) is fixedly mounted in the assembly hole (413).

3. The transducer sensor assembly structure according to claim 2, characterized in that: The mounting column (41) is located below the bracket (5).

4. The transducer sensor assembly structure according to claim 2, characterized in that: The bracket (5) comprises a metal pin fixing portion (51), an annular boss (52), and a connecting frame (53) located between the metal pin fixing portion (51) and the annular boss (52), and the through hole (511) is arranged in the middle of the metal pin fixing portion (51).

5. The transducer sensor assembly structure according to claim 4, characterized in that: The upper end of the outer wall of the mounting column (41) is provided with a groove (411), and the annular boss (52) is provided with a buckle (521) extending downward, and the buckle (521) cooperates with the groove (411) to achieve the connection between the measuring pipe (C) and the meter head (B).

6. The transducer sensor assembly structure according to claim 2, characterized in that: A supporting step is provided at the lower part of the assembly hole (413), and the lower end of the transducer (1) is supported on the supporting step via a gasket (412).

7. The transducer sensor assembly structure according to claim 1, characterized in that: The bracket (5) is integrally formed on the battery mounting plate (4), and the battery mounting plate (4) is symmetrically provided with two groups of the bracket (5) at positions corresponding to the two groups of transducers (1).

8. The transducer sensor assembly structure according to claim 5, characterized in that: The number of the buckles (521) is at least two.

9. The transducer sensor assembly structure according to claim 2, characterized in that: The outer wall of the installation column (41) is stepped, and the meter housing (7) is welded to the outer wall of the lower part of the installation column (41).

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