Ultrasonic flowmeter module

Abstract

The ultrasonic flowmeter module comprises a module body and a cover plate, the module body is in a cuboid shape, the left end and the right end of the module body are two transducer installation areas respectively, the middle of the module body is a control module circuit board installation area, and the cover plate is arranged on the upper surface of the module body; each transducer mounting area comprises a cylindrical barrel, a closed blind hole is formed in the bottom of the barrel, the upper part of the barrel is closed through a cover plate, a through hole I is formed in the position, corresponding to the transducer, of the cover plate, a plurality of screw holes I are formed in the periphery of the barrel, and the control module circuit board mounting area comprises a cuboid frame body; a cavity is arranged between the frame body and the cover plate, the cavity is communicated with the barrel bodies on the two sides respectively to form an inverted-concave-shaped communicated cavity, the two ends of the control module circuit board extend into the barrel bodies respectively, a second through hole is formed in the upper surface of the cover plate at the corresponding position of the frame body, and a cylindrical terminal groove is formed in an opening of the second through hole. The terminal grooves protrude out of the surface of the cover plate. Through the design of the blind holes, the energy converter is prevented from being in direct contact with gas or liquid in the pipe section, and the waterproof performance of the module is improved. And the transducer is connected with the circuit board through a reasonable structural design, so that the exposure of a circuit is reduced, and the stability of a product is enhanced. And through a process of pouring glue for several times, the integration of the module is enhanced, and the waterproof effect is better.

Description

Technical Field

[0001] The invention discloses an ultrasonic flowmeter module, relates to the technical field of flow measurement, and is used for performing non-contact measurement of the flow of a fluid. Background Art

[0002] Ultrasonic flowmeter is an instrument that measures fluid flow based on the principle of ultrasonic propagation velocity difference. Reflection ultrasonic flowmeter is a type of ultrasonic flowmeter that uses the propagation characteristics of ultrasonic waves in fluids to calculate the flow velocity and flow rate of the fluid by measuring the time it takes for ultrasonic signals to be reflected back from the fluid.

[0003] Traditional module designs often have problems such as exposed circuits and insufficient stability. For example, CN215865353U discloses an ultrasonic flowmeter in which the transducer and the flowmeter body are connected via a traditional external circuit, which can cause stability problems when used in a humid environment.

[0004] Traditional reflection ultrasonic flowmeter, first in such as Figure 1 The transducer is installed on the two mounting holes on the pipe section shown, and then fixed by a cover plate, etc., and then connected to the external control module circuit board by wiring, and then tested. This installation method is complicated and cumbersome, and the cost is high. Summary of the invention

[0005] In order to overcome the above-mentioned shortcomings, the present invention discloses an ultrasonic flowmeter module for a reflection type ultrasonic flowmeter.

[0006] The technical solution of the present invention is as follows: An ultrasonic flow meter module comprises a module body and a cover plate, wherein the module body is a rectangular parallelepiped, the left and right ends of the module body are respectively two transducer installation areas, and are symmetrically arranged, the middle is a control module circuit board installation area, and the cover plate is arranged on the upper surface of the module body; Each transducer installation area includes a cylindrical barrel for installing the transducer. The bottom of the barrel is a closed blind hole, the upper part is closed by a cover plate, and a through hole is opened at the position of the cover plate corresponding to the transducer. Several screw holes are arranged around the barrel for installation and fixing with the pipe section. The control module circuit board installation area includes a rectangular frame, a cavity is set between the frame and the cover plate, which is used to place the control module circuit board, and the cavity is connected with the cylinders on both sides to form an inverted concave connecting cavity. The two ends of the control module circuit board extend into the cylinder respectively, and a through hole 2 is opened on the upper surface of the cover plate at the corresponding position of the frame, and a cylindrical terminal groove is set at the opening of the through hole 2. The terminal groove protrudes from the surface of the cover plate, and the terminal groove is used for the signal terminal of the control module circuit board to extend.

[0007] Preferably, the transducer installation area is further provided with a second screw hole for installing an external display device of the ultrasonic flowmeter, and intelligent transformation can be performed through the external display device.

[0008] Preferably, a plurality of reinforcing ribs are also provided in the transducer installation area to enhance the structural strength of the module body and improve its durability in harsh environments.

[0009] Preferably, a boss is provided in the frame for supporting the control module circuit board.

[0010] Preferably, the two transducers are fixed to the control module circuit board by glue pouring. Specifically, the two transducers are respectively installed in the cylinder, and the transducers are connected to the control module circuit board through a line. Then, the transducers are fixed to the control module circuit board by glue pouring. After the cover plate is covered, glue is poured into the through hole 1 to fix the cover plate to the module body. In this way, the module is more airtight when in use and has excellent waterproof performance. Beneficial effects of the invention: The ultrasonic flowmeter module of the present invention has the following advantages: 1. The blind hole design prevents the transducer from directly contacting the gas or liquid in the pipe section, thereby improving the waterproof performance of the module.

[0011] 2. The transducer is connected to the circuit board through reasonable structural design, which reduces the exposure of the circuit and enhances the stability of the product.

[0012] 3. Through several times of glue filling process, the integrity of the module is enhanced and the waterproof effect is better.

[0013] 4. Compact structure and easy installation: The integrated design of the module enables quick installation and disassembly between the module and the pipe section. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the corresponding action pipe section of the present invention.

[0015] Figure 2 It is an overall schematic diagram of the present invention; Figure 3 This is the main module diagram Figure 1 ; Figure 4 The module body of the present invention is schematically shown in FIG. Figure 2 ; Figure 5 is a schematic diagram of a cover plate of the present invention; Figure 6 is a cross-sectional view of the present invention; Figure 7 It is a schematic diagram of installing the control module circuit board of the present invention. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0017] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] An ultrasonic flow meter module, used for reflective ultrasonic flow meters, such as Figure 1 As shown. Figure 2-6 As shown, the ultrasonic flow meter module includes a module body 1 and a cover plate 4. The module body 1 is a rectangular parallelepiped. The left and right ends of the module body 1 are two transducer installation areas 2, which are symmetrically arranged. The middle is a control module circuit board installation area 3. The cover plate 4 is arranged on the upper surface of the module body 1. The transducer installation area 2 of the module body 1 includes a cylindrical barrel 21 for installing the transducer. The bottom of the barrel 21 is a closed blind hole 27, and the upper part is closed by a cover plate 4. A through hole 43 is opened at the position of the cover plate 4 corresponding to the transducer. A plurality of screw holes 23 are arranged around the barrel 21 for mounting and fixing with the pipe section; the control module circuit board installation area 3 includes a rectangular frame 31. A cavity is arranged between the frame 31 and the cover plate 4 for placing the control module circuit board. The cavity is respectively connected with the barrel 21 on both sides to form an inverted concave connecting cavity. The two ends of the control module circuit board extend into the barrel 21 respectively. A through hole 41 is opened on the upper surface of the cover plate 4 at the corresponding position of the frame 31, and a cylindrical terminal groove 42 is arranged at the opening of the through hole 41. The terminal groove 42 protrudes from the surface of the cover plate 4. The terminal groove 42 is used for the signal terminal of the control module circuit board to extend. The signal terminal of the control module circuit board can be infrared, Bluetooth, RS485 and other communication methods.

[0019] Preferably, the transducer installation area 2 is further provided with a second screw hole 25 for installing an external display device of the ultrasonic flowmeter.

[0020] Preferably, a boss 32 is provided in the frame 31 for supporting the control module circuit board.

[0021] Preferably, the transducer mounting area 2 is further provided with a plurality of reinforcing ribs 26 .

[0022] The two transducers are installed in the cylinder 21 respectively, and the transducers are connected to the control module circuit board 5 through the line, and the transducers and the control module circuit board 5 are fixed by glue filling, and the cover plate 4 is covered. Figure 7 As shown, the control module circuit board 5 is provided with two convex strips, and the two convex strips extend into the barrel 21 respectively, so that the distance between the control module circuit board 5 and the transducer can be shorter, and the arrangement of the circuits can be reduced. Glue is poured into the through hole 1 43 to fix the cover plate 4 and the module body 1, so that the module is more airtight when in use and has waterproof performance.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An ultrasonic flow meter module, characterized in that: The module body comprises a module body and a cover plate. The module body is a rectangular parallelepiped. The left and right ends of the module body are two transducer installation areas, which are symmetrically arranged. The middle is a control module circuit board installation area. The cover plate is arranged on the upper surface of the module body. Each transducer installation area includes a cylindrical barrel for installing the transducer. The bottom of the barrel is a closed blind hole, the upper part is closed by a cover plate, and a through hole is opened at the position of the cover plate corresponding to the transducer. Several screw holes are arranged around the barrel for installation and fixing with the pipe section. The control module circuit board installation area includes a rectangular frame, a cavity is set between the frame and the cover plate, which is used to place the control module circuit board, and the cavity is connected with the cylinders on both sides to form an inverted concave connecting cavity. The two ends of the control module circuit board extend into the cylinder respectively, and a through hole 2 is opened on the upper surface of the cover plate at the corresponding position of the frame, and a cylindrical terminal groove is set at the opening of the through hole 2. The terminal groove protrudes from the surface of the cover plate, and the terminal groove is used for the signal terminal of the control module circuit board to extend.

2. An ultrasonic flow meter module according to claim 1, characterized in that: The transducer installation area is also provided with a screw hole 2 for installing an external display device of the ultrasonic flow meter.

3. The ultrasonic flow meter module according to claim 1, characterized in that: A number of reinforcing ribs are also provided in the transducer installation area.

4. The ultrasonic flow meter module according to claim 1, characterized in that: The two transducers are fixed to the control module circuit board by glue filling.

5. The ultrasonic flow meter module according to claim 1, characterized in that: A boss is arranged in the frame for supporting the control module circuit board.

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