Sensor wrapped by annular circuit board

Abstract

The utility model discloses a sensor wrapped by an annular circuit board, which is characterized in that a fluid channel is arranged in the length direction of the center of a sensor body, a sensing component is arranged at the middle section of the sensor body, mounting support legs are arranged at two ends of the sensor body, side circuit boards are connected to two ends of the mounting support legs, and a top circuit board is arranged at the upper end of the sensor body; the fluid channel comprises a middle channel, two sections of the middle channel are connected with a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are symmetrically arranged at two ends of the middle channel. The beneficial effects of the utility model are that the sensing assembly and the sensor body are installed in an embedded manner, so that on one hand, the volume of the sensor is small, the occupation of the installation space is reduced, and the sensor can be installed in a smaller space; secondly, the inductive head and the magnetic coil can be closer to a fluid channel, so that the accuracy of the flowmeter is improved; and thirdly, the circuit board is arranged on the periphery, so that the circuit is convenient to overhaul.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meters, in particular to a sensor wrapped with an annular circuit board. Background Art

[0002] An electromagnetic flowmeter uses the principle of electromagnetic induction to measure the flow rate of a conductive fluid based on the electromotive force induced when the fluid passes through an applied magnetic field. It is widely used in measuring instruments such as water meters.

[0003] Existing electromagnetic flowmeters are large in size and take up a lot of installation space, so each electromagnetic flowmeter usually requires a separate installation box. In addition, the magnetic coil and the water flow are not compact enough, and the magnetic field is sometimes not sensitive enough to the water flow, which reduces the accuracy of the electromagnetic flowmeter. In addition, since the circuit board of the existing technology is usually located inside the metering instrument, it is very inconvenient to repair if there is a problem with the circuit. Utility Model Content

[0004] The purpose of the present utility model is to provide a sensor wrapped with an annular circuit board to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sensor wrapped with a ring-shaped circuit board, a fluid channel is provided in the longitudinal direction of the center of the sensor body, a sensing component is provided in the middle section of the sensor body, mounting feet are provided at both ends of the sensor body, both ends of the mounting feet are connected to side circuit boards, a top circuit board is provided at the upper end of the sensor body, the fluid channel includes a middle channel, the two sections of the middle channel are connected to a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are symmetrically arranged at both ends of the middle channel, and the water inlet pipe and the water outlet pipe are both in a trumpet shape, the narrow openings of the water inlet pipe and the water outlet pipe are connected to the middle channel, and the sensing component is connected to the middle channel.

[0006] Preferably, the top circuit board includes a control board and a terminal, the terminal is located on one side of the control board, and an indicator light is provided on the other side of the control board.

[0007] Preferably, the induction component includes a mounting frame, two groups of magnetic coils and an induction head. The mounting frame is mounted on the sensor body, and the two groups of magnetic coils are respectively arranged at two ends of the inner cavity of the mounting frame.

[0008] Preferably, the mounting frame includes a first mounting assembly and a second mounting assembly, and the first mounting assembly and the second mounting assembly both include a base plate, and connecting plates are hinged at both ends of the base plate, and the two groups of connections are mutually clamped.

[0009] Preferably, a bracket mounting groove is provided on the opposite side of the sensor body, and the connecting plate is snap-fitted into the bracket mounting groove.

[0010] Preferably, a magnetic coil installation groove is provided on the other side opposite to the sensor body, and the magnetic coils are respectively installed in the magnetic coil installation groove.

[0011] Preferably, a sensor head mounting seat is provided in the bracket mounting groove, and the sensor head is mounted on the sensor head mounting seat.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention arranges the sensing component and the sensor body to form an embedded installation with each other, which, firstly, can make the volume of the present invention compact, reduce the installation space occupied, and enable the present invention to be installed in a smaller space; secondly, it can enable the sensing head and the magnetic coil to be closer to the fluid channel, thereby increasing the accuracy of the flow meter; thirdly, the circuit board is installed on the periphery, which is convenient for circuit inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the mounting frame of the utility model;

[0015] Figure 3 This is a schematic diagram of the first installation component and the second installation component of the utility model;

[0016] Figure 4 This is the structure diagram of the practical sensor body;

[0017] Figure 5 This is a cross-sectional view of the sensor body of the present utility model.

[0018] In the figure: 1. Sensor body; 11. Bracket mounting slot; 12. Magnetic coil mounting slot; 13. Sensor head mounting base; 2. Fluid channel; 21. Middle channel; 22. Water inlet pipe; 23. Water outlet pipe; 3. Mounting feet; 4. Mounting frame; 41. Bottom plate; 42. Connecting plate; 5. Magnetic coil; 6. Sensor head; 7. Side circuit board; 8. Top circuit board; 81. Control board; 82. Terminals; 83. Indicator light. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1 to 5 The present invention provides a technical solution: a sensor wrapped in a ring-shaped circuit board, comprising a sensor body 1, a fluid channel 2 provided along the longitudinal direction of the center of the sensor body 1, a sensing component provided in the middle section of the sensor body 1, mounting legs 3 provided at both ends of the sensor body 1, side circuit boards 7 connected to the mounting legs 3, and a top circuit board 8 provided at the upper end of the sensor body 1. The side circuit boards 7 and the top circuit board 8 are used to conduct electricity in the present invention and generate an electromagnetic field. The sensor body 1 is in the shape of a hollow rectangular parallelepiped, with flanges provided at both ends. The two ends of the fluid channel 2 are provided on the flanges. The fluid channel 2 includes a middle channel 21, the two sections of the middle channel 21 being connected to a water inlet pipe 22 and a water outlet pipe 23. The water inlet pipe 22 and the water outlet pipe 23 are symmetrically arranged at both ends of the middle channel 21, and both the water inlet pipe 22 and the water outlet pipe 23 are in a trumpet-shaped manner. The narrow openings of the water inlet pipe 22 and the water outlet pipe 23 are connected to the middle channel 21, and the sensing component is connected to the middle channel 21. When water flows through the fluid channel 2 , the shape of the fluid channel 2 can increase the water flow velocity, making the water flow thinner and faster, thereby enabling the sensing component to measure the water flow more accurately.

[0021] In an embodiment of the present invention, the top circuit board 8 includes a control board 81 and a terminal 82. The control board 82 has a built-in control circuit and chip for obtaining data from the sensing component. The terminal 82 is located on one side of the control board 81, and an indicator light 83 is provided on the other side of the control board 81.

[0022] In the embodiment of the present utility model, the sensing assembly includes a mounting frame 4 , a magnetic coil 5 and a sensing head 6 . The mounting frame 4 is mounted on the sensor body 1 , and the magnetic coil 5 is provided on the mounting frame 4 .

[0023] Furthermore, the magnetic coils 5 are divided into two groups, which are respectively arranged at the two ends of the inner cavity of the mounting frame 4 .

[0024] Furthermore, mounting bracket 4 includes a first mounting assembly and a second mounting assembly, each of which includes a base plate 41. Connecting plates 42 are hingedly connected at both ends of base plate 41, and the two sets of connecting plates 42 are interlocked. This makes mounting bracket 4 easy to disassemble as a whole, and eliminates the need for additional screws or other fasteners during installation, making installation simple and convenient.

[0025] In this embodiment of the present invention, a bracket mounting slot 11 is provided on one side of the sensor body 1, and a connecting plate 42 is snapped into the bracket mounting slot 11. The bracket mounting slot 11 prevents displacement of the mounting bracket 4 and allows the outer wall of the connecting plate 42 to be flush with the sensor body 1, making the present invention more compact and space-saving.

[0026] In the embodiment of the present invention, a magnetic coil installation groove 12 is provided on the other side opposite to the sensor body 1 , and the magnetic coils 5 are respectively installed in the magnetic coil installation groove 12 .

[0027] In this embodiment of the present invention, a sensor head mounting base 13 is provided within the bracket mounting slot 11, and the sensor head 6 is mounted on the sensor head mounting base 13. The top of the sensor head 6 is smooth and umbrella-shaped. After passing through the sensor body 1 and the side walls of the fluid channel 2, the top slightly extends to the inner wall of the fluid channel 2. In other words, the bottom edge of the umbrella-shaped top is connected to the inner wall of the fluid channel 2. When water flows through the fluid channel 2, the top of the sensor head 6 can sensitively sense the water flow.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sensor packaged with an annular circuit board, characterized in that: It includes a sensor body, a fluid channel is provided in the longitudinal direction of the center of the sensor body, a sensing component is provided in the middle section of the sensor body, mounting feet are provided at both ends of the sensor body, both ends of the mounting feet are connected to side circuit boards, a top circuit board is provided at the upper end of the sensor body, the fluid channel includes a middle channel, two sections of the middle channel are connected to a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are symmetrically arranged at both ends of the middle channel, and the water inlet pipe and the water outlet pipe are both in a trumpet shape, the narrow openings of the water inlet pipe and the water outlet pipe are connected to the middle channel, and the sensing component is connected to the middle channel.

2. The sensor wrapped with an annular circuit board according to claim 1, characterized in that: The top circuit board includes a control board and a terminal, wherein the terminal is located on one side of the control board, and an indicator light is provided on the other side of the control board.

3. The sensor packaged with an annular circuit board according to claim 2, characterized in that: The induction component comprises a mounting frame, two groups of magnetic coils and an induction head. The mounting frame is mounted on the sensor body, and the two groups of magnetic coils are respectively arranged at two ends of the inner cavity of the mounting frame.

4. The sensor packaged with an annular circuit board according to claim 3, characterized in that: The mounting frame includes a first mounting assembly and a second mounting assembly. The first mounting assembly and the second mounting assembly both include a base plate. Both ends of the base plate are hinged with connecting plates, and the two groups of connections are mutually clamped.

5. The sensor wrapped with an annular circuit board according to claim 4, characterized in that: A bracket installation groove is provided on one side opposite to the sensor body, and the connecting plate is clamped in the bracket installation groove.

6. The sensor packaged with an annular circuit board according to claim 5, characterized in that: A magnetic coil installation groove is provided on the other side opposite to the sensor body, and the magnetic coils are respectively installed in the magnetic coil installation groove.

7. The sensor packaged with an annular circuit board according to claim 6, characterized in that: An induction head mounting seat is provided in the bracket mounting groove, and the induction head is mounted on the induction head mounting seat.

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