CN214812376U

CN214812376U - Focusing ultrasonic transducer

Info

Publication number: CN214812376U
Application number: CN202121358298.5U
Authority: CN
Inventors: 刘士敏; 代其春
Original assignee: Sichuan Taiyou Technology Co ltd
Current assignee: Sichuan Taiyou Technology Co ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-11-23
Anticipated expiration: 2031-06-18

Abstract

The utility model belongs to the technical field of the transducer, especially, focus ultrasonic transducer, the difficult problem of changing and the unable regulation of focus radius of piezoceramics that provides to the background art, now provide following scheme, including the upper end shell, upper end shell inner wall is provided with change mechanism, and changes the mechanism including set up last conducting strip on upper end shell top inner wall, set up lower conducting strip on last conducting strip bottom outer wall, connect respectively in last conducting strip and the lower symmetric distribution on the conducting strip outer wall connect, set up the thread groove on connecting one end outer wall. The utility model discloses change piezoceramics and only need screw out the positive pole body and the negative pole body, just can separate piezoceramics from last conducting strip and lower conducting strip, easy operation, it is efficient to change, and reciprocating of connecting rod can drive every arc focusing piece and rotate, has realized focusing ultrasonic transducer's focusing radius's change, and the user can adjust focusing ultrasonic transducer's focusing radius according to actual requirement.

Description

Focusing ultrasonic transducer

Technical Field

The utility model relates to a transducer technical field especially relates to a focus ultrasonic transducer.

Background

Transducer means a device for interconversion between electric energy and acoustic energy. The method is used in echo sounders, Doppler log and acoustic correlation log. A so-called transmitting transducer which converts electrical energy into acoustic energy; converting acoustic energy into electrical energy is a receiving transducer. The transmitting and receiving transducers are typically used separately, but may also share one. The main performance indicators of the transducer are: an operating frequency, a frequency bandwidth, an electroacoustic frequency, an impedance at a resonance frequency, directivity (a transmission beam width), sensitivity, and the like.

When the focusing ultrasonic transducer is used for a period of time, the piezoelectric ceramic in the focusing ultrasonic transducer is easy to wear due to high-frequency vibration, so that the piezoelectric ceramic needs to be periodically maintained and replaced, but the piezoelectric ceramic in the existing focusing ultrasonic transducer is arranged between the conducting strips at the upper end and the lower end, but the conducting strips are mutually welded, so that the conducting strips need to be fused when the piezoelectric ceramic is taken off, the operation is troublesome, certain dangerousness is realized, and meanwhile, the focusing radius of the focusing ultrasonic transducer is generally fixed, and the focusing radius of the focusing ultrasonic transducer cannot be adjusted according to actual requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects in the prior art and providing a focused ultrasonic transducer.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a focused ultrasound transducer, includes the upper end shell, upper end shell inner wall is provided with changes the mechanism, and changes the mechanism including setting up last conducting strip on upper end shell top inner wall, setting up lower conducting strip on last conducting strip bottom outer wall, connect respectively in the connector of the symmetric distribution on last conducting strip and lower conducting strip outer wall, set up the thread groove on the outer wall of joint one end, upper end shell bottom outer wall is connected with the lower end shell, and lower end shell inner wall is provided with focus adjustment mechanism, focus adjustment mechanism is including articulating the arc focusing piece that the equidistance distributes on lower end shell top inner wall, setting up the adapter sleeve on arc focusing piece one end outer wall, connecting rod on the adapter sleeve outer wall.

Preferably, the positive pole body and the negative pole body are respectively screwed between the joint and the joint, mounting holes are formed in the outer walls of the two sides of the upper end shell, and the inner diameter of each mounting hole is matched with the outer diameter of the positive pole body and the outer diameter of the negative pole body.

Preferably, the outer wall of one side of the lower end shell is provided with a sliding groove, the inner wall of the sliding groove is connected with a pushing piece in a sliding mode, and the sliding groove and the pushing piece form interference fit.

Preferably, an adjacent installation sleeve is placed between the upper conducting strip and the lower conducting strip, and piezoelectric ceramics are installed on the inner wall of the installation sleeve.

Preferably, the outer wall of the bottom of the lower end shell is connected with an upper sealing cover, the outer wall of the bottom of the upper sealing cover is provided with a lower sealing cover, bolts distributed at equal intervals are screwed between the upper sealing cover and the lower sealing cover, and the outer wall of the lower sealing cover is connected with an amplitude transformer.

Preferably, the top of the upper end shell is inserted with a screw, an inner hexagonal groove is formed in the outer wall of the top of the screw, and the outer wall of the bottom of the lower conducting strip is connected with a vibrator.

The utility model has the advantages that:

1. according to the focusing ultrasonic transducer, the two conducting strips are different from the traditional focusing ultrasonic transducer which are connected in a mutual welding mode, a thread groove is formed in one end of a joint of the upper conducting strip and the lower conducting strip, piezoelectric ceramics are fixed between the upper conducting strip and the lower conducting strip in a mode that the positive pole body and the negative pole body are in threaded connection with the thread groove, the piezoelectric ceramics can be separated from the upper conducting strip and the lower conducting strip only by screwing out the positive pole body and the negative pole body when being replaced, the operation is simple, and the replacement efficiency is high;

2. the focusing ultrasonic transducer of this design, because arc focusing piece is articulated with the top inner wall of lower end shell, the connecting rod is connecting the adapter sleeve, and the top at the adapter sleeve is placed to the one end of arc focusing piece, so reciprocating of connecting rod can drive every arc focusing piece and rotate, has realized focusing ultrasonic transducer's focusing radius's change, and the user can adjust focusing ultrasonic transducer's focusing radius according to actual requirement.

Drawings

Fig. 1 is a front view of the overall structure of a focused ultrasound transducer according to the present invention;

fig. 2 is an exploded view of the overall structure of a focused ultrasound transducer according to the present invention;

fig. 3 is an exploded view of a replacement mechanism of the focused ultrasound transducer according to the present invention;

fig. 4 is a bottom view of a focal length adjustment mechanism of a focused ultrasound transducer according to the present invention.

In the figure: 1 upper end shell, 2 replacing mechanism, 21 upper conducting strip, 22 lower conducting strip, 23 joint, 24 thread groove, 3 lower end shell, 4 focusing adjusting mechanism, 41 arc focusing piece, 42 connecting sleeve, 43 connecting rod, 5 anode body, 6 cathode body, 7 sliding groove, 8 pushing piece, 9 mounting sleeve, 10 piezoelectric ceramics, 11 mounting hole, 12 upper sealing cover, 13 lower sealing cover, 14 amplitude-changing rod, 15 screw, 16 inner hexagonal groove and 17 vibrator.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a focusing ultrasonic transducer includes an upper housing 1, a replacing mechanism 2 is disposed on an inner wall of the upper housing 1, the replacing mechanism 2 includes an upper conductive sheet 21, a lower conductive sheet 22, a connector 23 and a thread groove 24, the lower conductive sheet 22 is disposed on an outer wall of a bottom of the upper conductive sheet 21, the connectors 23 are symmetrically connected to outer walls of the upper conductive sheet 21 and the lower conductive sheet 22, the thread groove 24 is disposed on an outer wall of one end of the connector 23, the outer wall of the bottom of the upper housing 1 is connected to a lower housing 3, the inner wall of the lower housing 3 is provided with a focusing adjusting mechanism 4, the focusing adjusting mechanism 4 includes an arc focusing sheet 41, a connecting sleeve 42 and a connecting rod 43, the connecting sleeve 42 is disposed on an outer wall of one end of the arc focusing sheet 41, the connecting rod 43 is connected to an outer wall of the connecting sleeve 42, because the arc focusing sheet 41 is hinged to an inner wall of a top of the lower housing 3, the connecting rod 43 is connected with the connecting sleeve 42, and one end of the arc focusing sheet 41 is placed at the top of the connecting sleeve 42, so that the up-and-down movement of the connecting rod 43 can drive each arc focusing sheet 41 to rotate, the change of the focusing radius of the focusing ultrasonic transducer is realized, and a user can adjust the focusing radius of the focusing ultrasonic transducer according to actual requirements;

the positive electrode body 5 and the negative electrode body 6 are respectively screwed between the joint 23 and the joint 23, the outer walls of two sides of the upper end shell 1 are respectively provided with the mounting holes 11, the inner diameter size of each mounting hole 11 is matched with the outer diameter size of the positive electrode body 5 and the outer diameter size of the negative electrode body 6, the two conducting strips are different from the prior art and are connected in a mutual welding mode, one end of the joint 23 of the upper conducting strip 21 and the lower conducting strip 22 is provided with a thread groove 24, the piezoelectric ceramic 10 is fixed between the upper conducting strip 21 and the lower conducting strip 22 in a mode that the positive electrode body 5 and the negative electrode body 6 are screwed with the thread groove 24, and the piezoelectric ceramic 10 can be separated from the upper conducting strip 21 and the lower conducting strip 22 only by screwing out the positive electrode body 5 and the negative electrode body 6 when the piezoelectric ceramic 10 is replaced, so that the operation is simple and the replacement efficiency is high;

the outer wall of one side of the lower end shell 3 is provided with a sliding groove 7, the inner wall of the sliding groove 7 is connected with a pushing piece 8 in a sliding mode, interference fit is formed between the sliding groove 7 and the pushing piece 8, an adjacent installation sleeve 9 is placed between an upper conducting piece 21 and a lower conducting piece 22, piezoelectric ceramics 10 are installed on the inner wall of the installation sleeve 9, the outer wall of the bottom of the lower end shell 3 is connected with an upper sealing cover 12, a lower sealing cover 13 is arranged on the outer wall of the bottom of the upper sealing cover 12, bolts distributed at equal intervals are connected between the upper sealing cover 12 and the lower sealing cover 13 in a threaded mode, the outer wall of the lower sealing cover 13 is connected with an amplitude-changing rod 14, a screw 15 is inserted into the top of the upper end shell 1, an inner hexagonal groove 16 is formed in the outer wall of the top of the screw 15, and an oscillator 17 is connected to the outer wall of the bottom of the lower conducting piece 22.

The working principle is as follows: a thread groove 24 is arranged at one end of a joint 23 of the upper conducting strip 21 and the lower conducting strip 22, the piezoelectric ceramic 10 is fixed between the upper conducting strip 21 and the lower conducting strip 22 in a mode that the anode body 5 and the cathode body 6 are in threaded connection with the thread groove 24, the piezoelectric ceramic 10 can be separated from the upper conducting strip 21 and the lower conducting strip 22 only by screwing out the anode body 5 and the cathode body 6 when replacing the piezoelectric ceramic 10, arc focusing sheets 41 which are distributed equidistantly are hinged on the inner wall of the top of the lower end shell 3, a connecting sleeve 42 is arranged at one end of each arc focusing sheet 41, the outer wall of each connecting sleeve 42 is connected with a connecting rod 43, each arc focusing sheet 41 rotates through a pushing piece to realize the change of the focusing radius of the focusing ultrasonic transducer, when the focusing ultrasonic transducer is used, the anode body 5 and the cathode body 6 are respectively connected through leads, and the upper conducting strip 21, the lower conducting strip 6 and the lower conducting strip are connected with the thread groove 24 in a threaded mode, The electric energy is finally converted into mechanical energy under the interaction of the lower conducting strip 22, the piezoelectric ceramic 10 and the vibrator 17, and the ultrasonic wave is emitted along the amplitude transformer 14.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a focused ultrasound transducer, includes upper end shell (1), its characterized in that, upper end shell (1) inner wall is provided with changes mechanism (2), and changes mechanism (2) including set up last conducting strip (21) on upper end shell (1) top inner wall, set up lower conducting strip (22) on last conducting strip (21) bottom outer wall, connect respectively in last conducting strip (21) and the symmetrical distribution's of conducting strip (22) outer wall joint (23) down, set up thread groove (24) on the outer wall of joint (23) one end, upper end shell (1) bottom outer wall is connected with lower end shell (3), and lower end shell (3) inner wall is provided with focus adjustment mechanism (4), focus adjustment mechanism (4) including articulate arc focusing piece (41) that the equidistance distributes on lower end shell (3) top inner wall, set up adapter sleeve (42) on arc focusing piece (41) one end outer wall, A connecting rod (43) connected to the outer wall of the connecting sleeve (42).

2. The focused ultrasound transducer according to claim 1, wherein a positive electrode body (5) and a negative electrode body (6) are respectively screwed between the connector (23) and the connector (23), mounting holes (11) are respectively formed in the outer walls of the two sides of the upper end shell (1), and the inner diameter of each mounting hole (11) is matched with the outer diameter of each positive electrode body (5) and the outer diameter of each negative electrode body (6).

3. The focused ultrasound transducer according to claim 1, wherein a sliding groove (7) is formed in an outer wall of one side of the lower end housing (3), a pushing member (8) is slidably connected to an inner wall of the sliding groove (7), and an interference fit is formed between the sliding groove (7) and the pushing member (8).

4. The focused ultrasonic transducer according to claim 1, wherein an adjacent mounting sleeve (9) is placed between the upper conductive sheet (21) and the lower conductive sheet (22), and the piezoelectric ceramic (10) is mounted on the inner wall of the mounting sleeve (9).

5. The focused ultrasonic transducer according to claim 1, wherein the outer wall of the bottom of the lower end shell (3) is connected with an upper sealing cover (12), the outer wall of the bottom of the upper sealing cover (12) is provided with a lower sealing cover (13), bolts which are distributed equidistantly are screwed between the upper sealing cover (12) and the lower sealing cover (13), and the outer wall of the lower sealing cover (13) is connected with a horn (14).

6. The focused ultrasonic transducer according to claim 1, wherein a screw (15) is inserted into the top of the upper end shell (1), an inner hexagonal groove (16) is formed in the outer wall of the top of the screw (15), and a vibrator (17) is connected to the outer wall of the bottom of the lower conductive sheet (22).