Ultrasonic flowmeter module

Abstract

The present invention discloses an ultrasonic flowmeter module, comprising a module main body and a cover plate, wherein the module main body is a cuboid, left and right ends of the module main body are respectively two transducer mounting areas, a middle portion is a control module circuit board mounting area, and the cover plate is arranged on an upper surface of the module main body; each transducer mounting area comprises a cylindrical body, a bottom portion of each cylindrical body is a closed blind hole, an upper portion is closed by means of the cover plate, a first through-hole is provided at a position of the cover plate corresponding to a transducer, a plurality of first threaded holes are provided around each cylindrical body, the control module circuit board mounting area comprises a cuboid frame, a cavity is provided between the frame and the cover plate, the cavity is respectively in communication with the cylindrical bodies on either side to form an inverted U-shaped communication cavity, two ends of the control module circuit board respectively extend into each cylindrical body, a second through-hole is provided on an upper surface of the cover plate at a corresponding position of the frame, a cylindrical terminal receptacle is provided at an opening of the second through-hole, and the terminal receptacle protrudes from the surface of the cover plate. The present invention uses a blind hole design to prevent a transducer from directly coming into contact with gas or liquid in a pipe section, thereby improving module waterproof performance. Transducers are connected to a circuit board by means of a rational structural design, thereby reducing exposed circuitry and enhancing product stability. A plurality of potting processes enhances module integrity, and results in better waterproof performance.

Description

An ultrasonic flow meter module Technical Field

[0001] This invention discloses an ultrasonic flow meter module, which relates to the field of flow measurement technology, and is used for non-contact measurement of fluid flow. Background Technology

[0002] An ultrasonic flow meter is an instrument that measures fluid flow rate based on the principle of the difference in ultrasonic propagation speed. A reflective ultrasonic flow meter is a type of ultrasonic flow meter that utilizes the propagation characteristics of ultrasonic waves in fluids, calculating the fluid velocity and flow rate by measuring the time it takes for the ultrasonic signal to reflect back from the fluid.

[0003] Traditional module designs often suffer from problems such as exposed wiring and insufficient stability. For example, an ultrasonic flow meter disclosed in CN215865353U uses a traditional external wiring connection between the transducer and the flow meter body, which can lead to stability issues when used in humid environments.

[0004] Traditional reflective ultrasonic flow meters first install the transducer in two mounting holes on the pipe section as shown in Figure 1, then fix it with a cover plate, and then connect it to an external control module circuit board by wiring before testing. This method is complex, cumbersome, and costly. Summary of the Invention

[0005] To overcome the above shortcomings, this invention discloses an ultrasonic flow meter module for use in reflective ultrasonic flow meters.

[0006] The technical solution of the present invention is as follows:

[0007] An ultrasonic flow meter module includes a module body and a cover plate. The module body is cuboid, with two transducer mounting areas at the left and right ends, which are symmetrically arranged. The middle part is the control module circuit board mounting area, and the cover plate is located on the upper surface of the module body.

[0008] Each transducer installation area includes a cylindrical body for installing the transducer. The bottom of the body is a closed blind hole, and the top is closed by a cover plate. A through hole is opened on the cover plate at the position corresponding to the transducer. Several screw holes are provided around the body for installation and fixing with the pipe section.

[0009] The control module circuit board mounting area includes a cuboid frame with a cavity between the frame and the cover plate for placing the control module circuit board. The cavity is connected to the cylinders on both sides to form an inverted U-shaped connecting cavity. The two ends of the control module circuit board extend into the cylinders. A through hole two is opened on the upper surface of the cover plate at the corresponding position of the frame, and a cylindrical terminal slot is provided at the opening of the through hole two. The terminal slot protrudes from the surface of the cover plate and is used for the signal terminals of the control module circuit board to extend.

[0010] Preferably, the transducer installation area is further provided with a screw hole 2 for installing an external display device for the ultrasonic flow meter, which enables intelligent transformation.

[0011] Preferably, the transducer mounting area is further provided with several reinforcing ribs to enhance the structural strength of the module body and improve its durability in harsh environments.

[0012] Preferably, a boss is provided in the frame to support the control module circuit board.

[0013] Preferably, the two transducers are fixed to the control module circuit board by potting adhesive. Specifically, the two transducers are respectively installed inside the cylinder, and the transducers are connected to the control module circuit board via wiring. Then, potting adhesive is used to fix the transducers to the control module circuit board. After the cover plate is closed, adhesive is poured into the through hole to fix the cover plate to the module body. In this way, the module has increased airtightness during use and has excellent waterproof performance. Beneficial effects of the invention:

[0014] The ultrasonic flow meter module of the present invention has the following advantages:

[0015] 1. The blind hole design avoids direct contact between the transducer and the gas or liquid inside the pipe section, thus improving the waterproof performance of the module.

[0016] 2. By connecting the transducer to the circuit board through a reasonable structural design, the exposed wiring is reduced, and the stability of the product is enhanced.

[0017] 3. Through several potting processes, the integrity of the module is enhanced, and the waterproof effect is better.

[0018] 4. Compact structure and easy installation: The integrated design of the modules enables quick installation and disassembly between the modules and pipe sections. Attached Figure Description

[0019] Figure 1 shows the corresponding working pipe section of the present invention.

[0020] Figure 2 is an overall schematic diagram of the present invention;

[0021] Figure 3 is a schematic diagram of the main body of the module;

[0022] Figure 4 is a schematic diagram of the module body of the present invention (II).

[0023] Figure 5 is a schematic diagram of the cover plate of the present invention;

[0024] Figure 6 is a cross-sectional view of the present invention;

[0025] Figure 7 is a schematic diagram of the control module circuit board of the present invention. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0027] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] An ultrasonic flow meter module is used for a reflective ultrasonic flow meter, and the target object is shown in Figure 1. As shown in Figures 2-6, the ultrasonic flow meter module includes a module body 1 and a cover plate 4. The module body 1 is cuboid, with two transducer mounting areas 2 at the left and right ends of the module body 1, which are symmetrically arranged. The middle part is the control module circuit board mounting area 3, and the cover plate 4 is set on the upper surface of the module body 1.

[0029] The transducer mounting area 2 of the module body 1 includes a cylindrical body 21 for mounting the transducer. The bottom of the cylindrical body 21 is a closed blind hole 27, and the upper part is closed by a cover plate 4. A through hole 43 is opened on the cover plate 4 at the position corresponding to the transducer. Several screw holes 23 are provided around the cylindrical body 21 for mounting and fixing with the pipe section. The control module circuit board mounting area 3 includes a cuboid frame 31. A cavity is provided between the frame 31 and the cover plate 4 for placing the control module circuit board. The cavity is connected to the cylindrical bodies 21 on both sides to form an inverted U-shaped connecting cavity. The two ends of the control module circuit board extend into the cylindrical body 21. A through hole 41 is opened on the upper surface of the cover plate 4 at the position corresponding to the frame 31. A cylindrical terminal slot 42 is provided at the opening of the through hole 41. The terminal slot 42 protrudes from the surface of the cover plate 4 and is used for the signal terminals of the control module circuit board to extend. The signal terminals of the control module circuit board can be infrared, Bluetooth, RS485 and other communication methods.

[0030] Preferably, the transducer mounting area 2 is also provided with a screw hole 25 for mounting an external display device of the ultrasonic flow meter.

[0031] Preferably, a boss 32 is provided inside the frame 31 to support the control module circuit board.

[0032] Preferably, the transducer mounting area 2 is further provided with several reinforcing ribs 26.

[0033] Two transducers are installed inside the cylinder 21, and the transducers are connected to the control module circuit board 5 via wiring. The transducers are fixed to the control module circuit board 5 by potting adhesive. The cover plate 4 is then placed on top, as shown in Figure 7. The control module circuit board 5 has two protrusions extending into the cylinder 21, thus shortening the distance between the control module circuit board 5 and the transducers and reducing wiring. Adhesive is then poured into the through hole 43 to fix the cover plate 4 to the module body 1, increasing the module's airtightness and waterproofing performance during use.

[0034] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An ultrasonic flow meter module, comprising: It includes a module body and a cover plate. The module body is cuboid, with two transducer mounting areas at the left and right ends, which are symmetrically arranged. The middle part is the control module circuit board mounting area, and the cover plate is located on the upper surface of the module body. Each transducer installation area includes a cylindrical body for installing the transducer. The bottom of the body is a closed blind hole, and the top is closed by a cover plate. A through hole is opened on the cover plate at the position corresponding to the transducer. Several screw holes are provided around the body for installation and fixing with the pipe section. The control module circuit board mounting area includes a cuboid frame with a cavity between the frame and the cover plate for placing the control module circuit board. The cavity is connected to the cylinders on both sides to form an inverted U-shaped connecting cavity. The two ends of the control module circuit board extend into the cylinders. A through hole two is opened on the upper surface of the cover plate at the corresponding position of the frame, and a cylindrical terminal slot is provided at the opening of the through hole two. The terminal slot protrudes from the surface of the cover plate and is used for the signal terminals of the control module circuit board to extend.

2. The ultrasonic flow meter module of claim 1, wherein, The transducer mounting area is also provided with a screw hole 2 for mounting an external display device for the ultrasonic flow meter.

3. The ultrasonic flow meter module of claim 1, wherein, Several reinforcing ribs are also installed in the transducer installation area.

4. The ultrasonic flow meter module of claim 1, wherein, The two transducers and the control module circuit board are fixed by potting.

5. The ultrasonic flow meter module of claim 1, wherein, A boss is provided inside the frame to support the control module circuit board.

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