CN211954289U

CN211954289U - Ultrasonic water meter transducer and ultrasonic water meter thereof

Info

Publication number: CN211954289U
Application number: CN202020200000.7U
Authority: CN
Inventors: 钱军; 王宗辉; 柴华芳
Original assignee: Ningbo Water Meter Group Co Ltd
Current assignee: Ningbo Water Meter Group Co Ltd
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-11-17
Anticipated expiration: 2030-02-24

Abstract

The utility model discloses an supersound water gauge transducer and supersound water gauge thereof, including shell and sound wave subassembly, the shell is the blind hole structure, and the sound wave subassembly sets up in the bottom of shell, is provided with the acoustic lens between sound wave subassembly and the shell, and the acoustic lens is used for focusing on the ultrasonic wave that the sound wave subassembly sent and handles. The utility model discloses a focus on the sound wave through acoustic lens in the transducer, change the radial propagation form of sound wave to the sound wave energy that reinforcing receiving terminal unit area received is favorable to the receiving terminal to obtain stronger sound wave signal.

Description

Ultrasonic water meter transducer and ultrasonic water meter thereof

Technical Field

The utility model relates to a water gauge technical field especially relates to an supersound water gauge transducer and supersound water gauge thereof.

Background

In the field of ultrasonic water meters, with the continuous updating of chip technology, an ultrasonic water meter pipe section becomes a core component of the ultrasonic water meter, and an ultrasonic water meter transducer becomes a key which directly influences the flow repeatability and the metering precision of the ultrasonic water meter.

In an ultrasonic water meter, a pair of circular ceramic plates are disposed as acoustic wave parts upstream and downstream of a pipe section of the ultrasonic water meter as sensing parts for generating and receiving ultrasonic waves in water. The sound wave energy plane generated by the ultrasonic water meter transducer is in a spherical radial shape taking the transducer as a spherical center. In the radial sound wave propagation mode, the longer the propagation distance is, the smaller the energy which can be received by a unit area is, and the higher the requirement on the sound wave sensitivity of the receiving end transducer is.

In the structure of the existing ultrasonic water meter transducer, sound waves are not focused, so that the radial propagation form of the sound waves cannot be changed, namely, the sound wave energy cannot be converged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and provide an supersound water gauge transducer and supersound water gauge thereof, focus on the sound wave in the transducer, change the radial propagation form of present sound wave to the sound wave energy that reinforcing receiving terminal unit area received is favorable to the receiving terminal to obtain stronger sound wave signal.

In order to achieve the above object, the utility model provides a following technical scheme:

in a first aspect, the utility model provides an supersound water gauge transducer, including shell and sound wave subassembly, the shell is the blind hole structure, the sound wave subassembly sets up in the bottom of shell, be provided with acoustic lens between sound wave subassembly and the shell, acoustic lens is used for focusing on the ultrasonic wave that the sound wave subassembly sent and handles.

Furthermore, a sealing glue layer is arranged at the upper opening of the blind hole in the shell.

Furthermore, metal layers are arranged on the upper surface and the lower surface of the sound wave component; the upper surface of the sound wave component is provided with a positive electrode and a negative electrode, the positive electrode and the negative electrode are respectively provided with a lead, and the leads penetrate through the sealing adhesive layer to be connected with a signal wire in the ultrasonic water meter.

Furthermore, the acoustic lens is made of epoxy resin or organic glass, and is of a plano-concave spherical surface type.

Further, the bottom of the housing is integrally formed with the acoustic lens.

Further, the bottom of the shell is of a plano-concave spherical surface type.

Further, the shell is made of epoxy resin or organic glass; the bottom of the shell is of a double-spherical concave lens structure.

A second aspect of the present invention provides an ultrasonic water meter, including the housing and a pair of reflection devices inserted in the housing, further including two ultrasonic water meter transducers as described in any of the above embodiments, the ultrasonic water meter transducers are disposed on the housing corresponding to the reflection devices.

Compared with the prior art, the beneficial effects of the utility model are that: the acoustic lens is added in the transducer to focus the acoustic wave in the transducer, so that the existing radial propagation form of the acoustic wave is changed, the acoustic wave energy received by the unit area of the receiving end is enhanced, and the receiving end can obtain stronger acoustic wave signals.

Drawings

Fig. 1 to fig. 3 are schematic structural diagrams of the middle ultrasonic transducer of the present invention.

Detailed Description

The present invention will now be described in more detail with reference to the accompanying drawings, in which the description of the invention is given by way of illustration and not of limitation. The various embodiments may be combined with each other to form other embodiments not shown in the following description.

In the description of the present invention, it should be noted that, for the terms of orientation, there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and "the number" in the description of the invention means two or more unless explicitly specified otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "assembled", "connected" and "connected" should be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above-mentioned terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1, the utility model provides an supersound water gauge transducer, including shell 1 and sound wave subassembly 3, shell 1 sets up to the blind hole structure, and sound wave subassembly 3 sets up in the bottom of shell 1, is provided with acoustic lens 2 between sound wave subassembly 3 and the shell 1. An acoustic lens 2 is arranged between the bottom of a blind hole of an ultrasonic water meter transducer shell 1 and an acoustic wave component 3, so that ultrasonic waves emitted by the acoustic wave component 3 are focused when passing through the acoustic lens 2. The ultrasonic waves focused by the acoustic lens 2 penetrate through the bottom plane of the blind hole of the ultrasonic water meter transducer shell 1 to enter water and are transmitted in the water. The sound wave energy density is improved in a focusing mode, so that after the sound wave is transmitted in water and reaches the receiving end, the sound wave energy of the unit receiving area of the receiving end is higher, the receiving end can obtain stronger sound wave signals, and the signal-to-noise ratio of sound wave receiving of the ultrasonic water meter is improved.

The upper port of the blind hole in the shell 1 is provided with a sealing adhesive layer 4, the upper surface and the lower surface of the sound wave component 3 are provided with metal layers, the upper surface of the sound wave component 3 is provided with a positive electrode and a negative electrode, the positive electrode and the negative electrode are respectively provided with a lead 5, and the lead 5 penetrates through the sealing adhesive layer 4 to be connected with a signal line in the ultrasonic water meter.

Since the propagation velocity of ultrasonic waves in solids having a density greater than that of water is greater than that in water. Therefore, in order to obtain a focused acoustic wave form, the acoustic lens 2 is configured such that one surface is a plano-concave spherical surface and the other surface is a flat surface. The plane part is tightly attached to the inner plane of the bottom of the blind hole of the shell 1 and faces to the sound wave component 3. In order to obtain a good sound wave focusing effect and to facilitate the inspection of the sound wave module 3, the acoustic lens 2 is made of epoxy resin or organic glass.

To achieve acoustic focusing without increasing the number of parts in the ultrasonic water meter transducer. As shown in fig. 2, the bottom of the blind hole of the ultrasonic water meter transducer shell 1 is made into an acoustic lens structure, the transducer shell 1 itself is used as an acoustic lens, and meanwhile, in order to obtain a better acoustic wave gathering effect and conveniently check the acoustic wave component 3, the shell 1 is made of epoxy resin or organic glass.

As shown in fig. 3, the thickness of the central position of the plano-concave spherical surface of the ultrasonic water meter transducer housing 1, whose one surface is a plane plano-concave spherical surface, is thinner, and the ultrasonic water meter transducer housing, which is a part of the water meter pipe section, belongs to the pressure-bearing part. In order to eliminate the risk of the transducer housing 1 having a low resistance to water pressure. The ultrasonic water meter transducer is prevented from fracturing the thinnest part of the bottom of the shell 1 of the ultrasonic water meter transducer under the condition that the water pressure of a water meter pipe section is high. The bottom of the ultrasonic water meter transducer shell 1 is manufactured into a double-spherical concave lens structure. The shell 1 has a good mechanical effect while playing a role of an acoustic lens, so that the shell can bear high water pressure of a pipeline.

The utility model also provides an ultrasonic water meter, include the casing and insert a pair of reflect meter of establishing in the casing, still include two as above-mentioned arbitrary embodiment ultrasonic water meter transducer, ultrasonic water meter transducer sets up the position corresponding to reflect meter on the casing.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An supersound water gauge transducer, includes shell and sound wave subassembly, its characterized in that: the shell is a blind hole structure, the sound wave component is arranged at the bottom of the shell, a sound lens is arranged between the sound wave component and the shell, and the sound lens is used for focusing ultrasonic waves emitted by the sound wave component.

2. The ultrasonic water meter transducer according to claim 1, wherein: and an upper opening of the blind hole in the shell is provided with a sealing adhesive layer.

3. The ultrasonic water meter transducer according to claim 1, wherein: metal layers are arranged on the upper surface and the lower surface of the sound wave component; the upper surface of the sound wave component is provided with a positive electrode and a negative electrode, the positive electrode and the negative electrode are respectively provided with a lead, and the leads penetrate through the sealing adhesive layer to be connected with a signal wire in the ultrasonic water meter.

4. The ultrasonic water meter transducer according to claim 1, wherein: the acoustic lens is made of epoxy resin or organic glass and is of a plano-concave spherical surface type.

5. The ultrasonic water meter transducer according to claim 1, wherein: the bottom of the housing is integrally formed with the acoustic lens.

6. An ultrasonic water meter transducer according to claim 5, wherein: the bottom of the shell is a plano-concave spherical surface.

7. An ultrasonic water meter transducer as defined in claim 6, wherein: the shell is made of epoxy resin or organic glass; the bottom of the shell is of a double-spherical concave lens structure.

8. An ultrasonic water meter comprising a housing and a pair of reflectors inserted in the housing, characterized in that: the ultrasonic water meter transducer of any one of claims 1 to 7, further comprising two ultrasonic water meter transducers disposed on the housing at positions corresponding to the reflecting means.