Built-in structure of circuit board on electromagnetic water meter

Abstract

The utility model discloses a circuit board built-in structure on an electromagnetic water meter, which relates to the technical field of electromagnetic water meters and comprises a flow guide pipe, a coil assembly mounted on the flow guide pipe, a bunch fixing frame fixedly mounted on the flow guide pipe, a pressure measuring structure mounted on the flow guide pipe and a magnetic circuit board mounted on the coil assembly. A plurality of mounting holes are formed in the flow guide pipe in the radial direction, a signal electrode is arranged on the flow guide pipe in the horizontal direction, a grounding electrode is arranged on the flow guide pipe in the vertical direction, and a circuit board structure and a circuit board connecting wire are further arranged on the flow guide pipe in the vertical direction. The electromagnetic water meter has the advantages that the measuring precision and reliability of the electromagnetic water meter are improved, the assembling process is simplified, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of electromagnetic water meters, in particular to an embedded structure of a circuit board of an electromagnetic water meter. BACKGROUND

[0002] As an important flow measurement device, electromagnetic water meters are widely used in water supply systems and industrial control fields. With the progress of technology, electromagnetic water meters not only need to have high-precision measurement performance, but also need to have good reliability and stability.

[0003] In the existing design of electromagnetic water meters, a common method is to install various functional modules at different positions of a flow guide pipe and to electrically connect them through external connecting cables. Although the above method can basically meet the functional requirements of electromagnetic water meters, in actual application, the connection between components is relatively complex, which leads to a tedious assembly process and is prone to problems such as looseness or poor contact, thereby affecting the measurement accuracy and service life. In particular, for environments with high humidity, the traditional design is difficult to effectively prevent water intrusion, which may cause short circuit of the circuit board or other electrical faults, reducing the stability and safety of the system. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the problems of multiple connecting cables, tedious assembly and easy moisture in the installation and use of traditional electromagnetic water meters, the application provides an embedded structure of a circuit board of an electromagnetic water meter.

[0005] The application provides an embedded structure of a circuit board of an electromagnetic water meter, which adopts the following technical scheme:

[0006] An embedded structure of a circuit board of an electromagnetic water meter, comprising a flow guide pipe, a coil set installed on the flow guide pipe, a wire harness fixing frame fixedly installed on the flow guide pipe, a pressure measuring structure fixedly installed on the flow guide pipe, and a magnetic circuit board installed on the coil set, a signal electrode is arranged on the flow guide pipe in the horizontal direction, a grounding electrode is arranged on the flow guide pipe in the vertical direction, a circuit board structure and a circuit board connecting cable are further arranged on the flow guide pipe in the vertical direction, and the magnetic circuit board and the flow guide pipe are connected through a fastener.

[0007] By adopting the above technical scheme, the coil set and the magnetic circuit board on the flow guide pipe cut the magnetic field when water flows through, generating a stable electromotive force, thereby accurately measuring the water flow. The wire harness fixing frame not only organizes and fixes various wire harnesses, but also ensures the positional stability of the coil, improves the overall reliability of the equipment, the signal electrode and the grounding electrode passing through the mounting hole are stably installed, ensuring the stability and accuracy of signal transmission, and the circuit board structure on the flow guide pipe in the vertical direction facilitates the integration and maintenance of the internal circuit, saves the space of the water meter, and improves the compactness of the product.

[0008] Optionally, the circuit board structure comprises a circuit board box integrated with the wire harness fixing frame, a circuit board installed in the circuit board box, and a bolt for fixing the circuit board, and the circuit board connecting wire is connected with the circuit board in the converter.

[0009] By adopting the technical scheme, the circuit board has a certain spacing from the bottom of the circuit board box, the circuit board is sealed by pouring glue, the circuit board is effectively protected from the external environment, the stability is improved, the circuit board is stably installed in the electromagnetic water meter, and assembly and maintenance are facilitated.

[0010] Optionally, one end of the copper strip is fixed to the signal electrode through a nut, and the other end of the copper strip is fixed to the circuit board.

[0011] By adopting the technical scheme, the copper strip connects the signal electrode and the circuit board, is convenient to fix, and can ensure that the copper strip is fixed firmly and is not easy to shake, so that the measurement accuracy is improved.

[0012] Optionally, the coil group comprises an upper coil and a lower coil installed on the flow guide pipe, the upper coil and the circuit board are connected through upper coil excitation wires, and the lower coil and the circuit board are connected through lower coil excitation wires.

[0013] By adopting the technical scheme, reliable electrical connection is realized between the upper coil and the lower coil and the circuit board, efficient transmission of electrical signals is ensured, the overall stability and measurement accuracy are improved, the overall structure of the electromagnetic water meter is more compact, and installation and maintenance are facilitated.

[0014] Optionally, the ground electrode and the circuit board are connected through a ground wire.

[0015] By adopting the technical scheme, the connection between the ground electrode and the circuit board is more stable and reliable, the stability of the electromagnetic water meter is effectively improved, the influence of external interference on the measurement result is reduced, and accurate transmission of signals is ensured.

[0016] Optionally, a clamping groove is formed in the wire harness fixing frame, and inner walls of the clamping groove abut against the ground wire and the lower coil excitation wire respectively.

[0017] By adopting the technical scheme, the clamping groove in the wire harness fixing frame effectively arranges and fixes the ground wire and the lower coil excitation wire, prevents the cables from loosening or falling off, improves the reliability of the circuit connection, and reduces the measurement error caused by movement of the cables.

[0018] Optionally, a pressure measuring structure is installed on the flow guide pipe, and a pressure sensor wire harness of the pressure measuring structure is connected with the circuit board and is in conduction.

[0019] By adopting the technical scheme, the pressure on the flow guide pipe can be monitored in real time.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. The copper strip connects the signal electrode and the circuit board, ensuring firm fixation and preventing shaking, thus ensuring measurement accuracy.

[0022] 2. The circuit board is built into the circuit board box, facilitating installation, saving water meter space, and improving the compactness of the overall structure.

[0023] 3. The harness fixing frame organizes and fixes the wire harness, enhancing the overall stability and safety. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 is a structural schematic diagram of the first embodiment of the present application.

[0026] Figure 2 is a structural schematic diagram of the second embodiment of the present application.

[0027] Reference signs: 1, flow guide pipe; 2, coil group; 3, harness fixing frame; 4, magnetic circuit board; 5, signal electrode; 6, grounding electrode; 7, pressure measuring structure; 8, nut; 9, circuit board structure; 91, circuit board box; 92, circuit board; 93, bolt; 10, copper strip; 21, upper coil; 22, lower coil; 11, grounding wire; 12, clamping groove; 13, fastener; 14, circuit board connecting wire. DETAILED DESCRIPTION

[0028] The following will be described in conjunction with the accompanying Figure 1 -Appendix Figure 2 The present application will be further described in detail.

[0029] Embodiment 1

[0030] Referring to Figure 1As shown, the embodiment of the present application provides a kind of electromagnetic water meter upper line board built-in structure, including flow guide pipe 1, coil group 2 being installed on flow guide pipe 1, beam fixing frame 3 being fixedly installed on flow guide pipe 1, pressure measuring structure 7 being installed on flow guide pipe 1 and magnetic circuit board 4 being installed on coil group 2.Wherein, multiple mounting holes are set on flow guide pipe 1 along radial direction, two mounting holes on flow guide pipe 1 in horizontal direction are fixed with signal electrode 5, two mounting holes on flow guide pipe 1 in vertical direction are fixed with ground electrode 6, line board structure 9 and line board connecting wire 14 are also provided on flow guide pipe 1 in vertical direction, magnetic circuit board 4 and flow guide pipe 1 are connected by fastener 13, line board structure 9 and vertical ground electrode 6 are connected and fixed, whole structure is compact, reduce the number of external connecting cable, improve assembly efficiency and reliability.

[0031] Referring to Figure 1 As shown, coil group 2 includes upper coil 21 and lower coil 22 being installed on flow guide pipe 1, and is arranged symmetrically, and upper coil 21 and line board 92 are communicated by upper coil excitation wire, and lower coil 22 and line board 92 are communicated by lower coil excitation wire, to ensure the effective transmission of magnetic circuit, while reducing signal interference and improving measurement accuracy.

[0032] Referring to Figure 1 As shown, one end of copper band 10 is fixed with signal electrode 5 through nut 8, and the other end of copper band 10 is fixed with line board 92.Copper band 10 is made of copper, has good electrical conductivity and mechanical strength, and copper band 10 is fixed with signal electrode 5 and line board 92 to ensure firm and reliable connection.

[0033] Referring to Figure 1 As shown, clamping groove 12 is set on beam fixing frame 3, and the inner wall of clamping groove 12 is respectively abutted with ground wire 11 and lower coil excitation wire, to arrange and fix various wire harnesses, prevent wire harnesses from loosening or winding, and ensure the neatness and reliability of overall structure.

[0034] Referring to Figure 1 As shown, pressure measuring structure 7 is installed on flow guide pipe 1, and the pressure sensor wire harness of pressure measuring structure 7 is connected with line board 92 and is conducted, to facilitate real-time monitoring of the pressure on flow guide pipe 1.

[0035] The implementation principle of the embodiment of the present application is that: the line board 92 built-in structure greatly simplifies the assembly process, reduces the number of external connecting cables, improves the reliability and stability of the system, the use of copper band 10 ensures the good connection between signal electrode 5 and line board 92, reduces signal loss and interference, beam fixing frame 3 effectively arranges and fixes various wire harnesses, prevents loosening and winding, and maintains the neatness of overall structure.

[0036] The circuit board in the embodiment of the present application can be used as a conversion board of the wire harness, and then connected with the measurement main board in the converter through the circuit board connecting wire 14; or can be used as the measurement main board of the electromagnetic water meter, and then connected with the communication main board of the converter through the circuit board connecting wire 14.

[0037] Embodiment two

[0038] Referring to Figure 2 The rest of the structure is consistent with that of embodiment one, and the difference between the present embodiment and the above-mentioned embodiments is that the circuit board 92 is provided with a glue filling protection measure. Specifically, the circuit board 92 structure 9 includes a circuit board 92 box 91 integrated with the wire harness fixing frame and a circuit board 92 installed in the circuit board 92 box 91, and a bolt 93 for fixing the circuit board 92, the circuit board 92 connecting wire is connected with the circuit board 92 in the converter, the ground electrode 6 and the circuit board 92 are communicated through the grounding wire 11, the circuit board 92 is fixed in the circuit board box 91 on the wire harness fixing frame 3, and then can be filled with sealing glue to further improve the moisture-proof performance of the circuit board 92, and also can increase the anti-vibration and anti-impact performance of the circuit board 92, which is suitable for more severe working environment.

[0039] The circuit board box 91 can be square or circular, has good insulation and mechanical strength, the circuit board 92 contains electronic components and circuits, and can be a measurement main circuit board 92 of the electromagnetic water meter, or can be used as a conversion board, connecting the wire harness in the sensor with the circuit board 92, and then connecting the circuit board 92 and the connecting wire with the measurement board in the converter, which makes the circuit board 92 play an important role in different application scenarios.

[0040] When filling the sealing glue, high-performance materials such as silicone rubber and epoxy resin can be selected, which can maintain stable physical and chemical properties for a long time. During the process of filling the glue, the temperature and pressure need to be controlled to ensure that the sealing glue is uniformly filled into the gap around the circuit board 92 without any bubbles or cavities.

[0041] The implementation principle of the present embodiment is as follows:

[0042] In addition to the advantages of the above-mentioned embodiments, the present embodiment further improves the moisture-proof performance and mechanical stability of the circuit board 92 through the glue filling protection measure, effectively isolates moisture and dust, and also can absorb part of the vibration and impact energy to protect the circuit board 92 from the influence of the external environment. This makes the electromagnetic water meter work normally even in extreme environments such as humidity, high temperature and vibration, greatly expands its application range, and further improves the comprehensive performance and reliability of the electromagnetic water meter.

[0043] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Unless otherwise defined, the terms "first", "second" or "third" and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a sequential or chronological order. The terms "one", "another", "an" or "some" as well as similar referents in the context of describing the specification and claims are to be construed to be open-ended, i.e., to cover both singular and plural referents unless otherwise indicated. The terms "including", "containing" or "comprising" and the like are not intended to exclude other integers or steps, but to "include" or "comprise" other integers or steps unless otherwise indicated. The terms "connected", "coupled" or "pathway" and the like are not limited to direct connections, couplings or pathways, but can also include indirect connections, couplings or pathways unless otherwise indicated.

[0044] The above are only preferred embodiments of the present application, not intended to limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A built-in circuit board structure for an electromagnetic water meter, characterized in that: The application relates to a signal converter, which comprises a flow guide pipe (1), a coil group (2) installed on the flow guide pipe (1), a beam wire fixing frame (3) fixedly installed on the flow guide pipe (1), a pressure measuring structure (7) fixedly installed on the flow guide pipe (1), a magnetic circuit board (4) installed on the coil group (2), a signal electrode (5) arranged on the flow guide pipe (1) in the horizontal direction, a grounding electrode (6) arranged on the flow guide pipe (1) in the vertical direction, a circuit board structure (9) and a circuit board connecting wire (14) arranged on the flow guide pipe (1) in the vertical direction, and the magnetic circuit board (4) and the flow guide pipe (1) are connected through fasteners (13).

2. The electromagnetic water meter upper circuit board built-in structure according to claim 1, characterized in that: The circuit board structure (9) comprises a circuit board box (91) integrated with the beam wire fixing frame (3) and a circuit board (92) installed in the circuit board box (91), and a bolt (93) for fixing the circuit board (92), and the circuit board connecting wire (14) is connected with the circuit board in the converter.

3. The electromagnetic water meter upper circuit board built-in structure according to claim 1, characterized in that: One end of the copper band (10) is fixed with the signal electrode (5) through a nut (8), and the other end of the copper band (10) is fixed with the circuit board (92).

4. The electromagnetic water meter upper circuit board built-in structure according to claim 1, characterized in that: The coil group (2) comprises an upper coil (21) and a lower coil (22) installed on the flow guide pipe (1), the upper coil (21) and the circuit board (92) are communicated through upper coil excitation wires, and the lower coil (22) and the circuit board (92) are communicated through lower coil excitation wires.

5. The electromagnetic water meter upper circuit board built-in structure according to claim 1, characterized in that: The grounding electrode (6) and the circuit board (92) are communicated through a grounding wire (11).

6. The electromagnetic water meter upper circuit board built-in structure according to claim 1, characterized in that: The beam wire fixing frame (3) is provided with a clamping groove (12), and the inner walls of the clamping groove (12) respectively abut against the grounding wire (11) and the lower coil excitation wire.

7. The electromagnetic water meter upper circuit board built-in structure according to claim 2, characterized in that: The flow guide pipe (1) is provided with the pressure measuring structure (7), and a pressure sensor wire harness of the pressure measuring structure (7) is connected with the circuit board (92) and is communicated.

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