CN213792625U

CN213792625U - Sealed ultrasonic transducer

Info

Publication number: CN213792625U
Application number: CN202022613401.8U
Authority: CN
Inventors: 吴子希
Original assignee: Shenzhen Sunori Electronic Technology Co ltd
Current assignee: Shenzhen Jienuosheng Technology Co.,Ltd.
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-07-27
Anticipated expiration: 2030-11-12

Abstract

The utility model discloses a sealed ultrasonic transducer relates to ultrasonic transducer technical field, including casing, setting at inside piezoceramics, wiring board and the conductive pillar of connecting piezoceramics and wiring board of casing, the inner wall of casing is pegged graft and is had the support sleeve, the inner wall of support sleeve is provided with the drying tube, the inside of casing is provided with the cushion, the upper surface of cushion is hugged closely there is the rubber pad, the upper end inboard of casing is provided with the latch segment, the inboard fixed mounting of latch segment has the sleeve pipe, the overflow cover has been cup jointed to the sheathed tube bottom, the inboard of overflow cover runs through there is the wire, sheathed tube inside is filled with sealed glue. The utility model has the advantages that: the inside drying tube that adds of casing is used for absorbing moisture, seals through pouring sealed glue between wire and the sleeve pipe, and the overflow cover can be to the shutoff of sleeve pipe bottom, and in the inflow casing when avoiding sealed glue to pour, made things convenient for the operation of pouring of sealing glue.

Description

Sealed ultrasonic transducer

Technical Field

The utility model relates to an ultrasonic transducer technical field specifically is a sealed ultrasonic transducer.

Background

Ultrasonic transducers are key components that convert the piezoelectric effect into mechanical energy vibrations. The existing ultrasonic transducer is composed of a guide post, a radiation head, an electrode plate, piezoelectric ceramics and the like.

The problem that the ultrasonic transducer is affected with damp in the use process of the existing ultrasonic transducer is solved, the sealing of the connecting part of a lead of the ultrasonic transducer is poor, the inner part of the ultrasonic transducer is easily affected with damp, the transducer is required to be integrally disassembled and put into an oven to be dried for 3 hours at about 100 ℃ or a hair drier is used for removing damp, the operation is troublesome, and the use of equipment is affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sealed ultrasonic transducer has better leakproofness, avoids ultrasonic transducer's inside phenomenon of weing to appear, guarantees ultrasonic transducer job stabilization nature.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a sealed ultrasonic transducer, includes the casing, sets up at inside piezoceramics, wiring board and the leading electrical pillar of connecting piezoceramics and wiring board of casing, the inner wall of casing is pegged graft and is had the support sleeve, the inner wall of support sleeve is provided with the drying tube, the inside of casing is provided with the cushion, the upper surface of cushion is hugged closely there is the rubber pad, the upper end inboard of casing is provided with the latch segment, the inboard fixed mounting of latch segment has the sleeve pipe, the overflow cover has been cup jointed to the sheathed tube bottom, the inboard of overflow cover has run through the wire, sheathed tube inside is filled with sealed glue.

Preferably, one end of the wire penetrates through the overflow sleeve and is electrically connected with the wiring board, and the bottom of the wiring board is provided with the drying block.

Preferably, piezoceramics sets up the bottommost at the casing, piezoceramics's the outside is provided with the puigging, the material of puigging chooses for use inhales the sound cotton.

Preferably, the length of the supporting sleeve is consistent with that of the drying pipe, and one side of the cushion block is tightly attached to one end of the supporting sleeve.

Preferably, an inner thread is formed in the inner side of the upper end of the shell, and an outer thread matched with the inner thread is formed in the outer side of the locking block.

Preferably, one end face of the locking block abuts against the rubber pad, and one end face of the rubber pad abuts against the end face of the cushion block.

Compared with the prior art, the beneficial effects of the utility model are that: the sealed ultrasonic transducer comprises: through the inside at the casing add the drying tube, absorb interior moisture of casing, avoid the casing inside to wet, and the extrusion through the rubber block makes the casing inside and outside separate, the realization is sealed the inside cavity of casing, avoid the air to flow, the sleeve pipe that is used for running through of wire through setting up, carry out sealed filling of gluing after the wire runs through, it does not have the clearance to guarantee between sleeve pipe and the wire, the overflow cover can carry out the shutoff to the sleeve pipe bottom, in the inflow casing when avoiding sealed glue to fill, the operation of filling of gluing has been made things convenient for.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is an enlarged view of the position a of the present invention.

In the figure: 10. a housing; 11. piezoelectric ceramics; 12. a sound insulating layer; 13. drying the blocks; 14. a conductive post; 15. a wiring board; 16. a support sleeve; 17. a drying tube; 18. cushion blocks; 19. a rubber pad; 20. a locking block; 21. a sleeve; 22. a wire; 23. an overflow sleeve; 24. and (7) sealing the glue.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a sealed ultrasonic transducer comprises a shell 10, a piezoelectric ceramic 11, a wiring board 15 and a conductive column 14, wherein the piezoelectric ceramic 11 and the wiring board 15 are arranged in the shell 10, the conductive column 14 is used for connecting the piezoelectric ceramic 11 with the wiring board 15, a support sleeve 16 is inserted into the inner wall of the shell 10, a drying tube 17 is arranged on the inner wall of the support sleeve 16, a cushion block 18 is arranged in the shell 10, the cushion block 18 is extruded on the support sleeve 16, the drying tube 17 is also abutted to the lower side of the cushion block 18, a rubber pad 19 is tightly attached to the upper surface of the cushion block 18, the rubber pad 19 is tightly attached to the inner wall of the shell 10 for sealing the shell 10 and preventing air from flowing into the shell 10, a locking block 20 is arranged on the inner side of the upper end of the shell 10, the rubber pad 19 is extruded through the locking block 20, so that the position of the rubber pad 19 is fixed, pressure generated by the rubber pad 19 is concentrated on the support sleeve 16 to prevent the drying tube 17 from being stressed, a sleeve 21 is fixedly arranged on the inner side of the locking block 20, sleeve pipe 21 and latch segment 20 do not have the clearance, overflow cover 23 has been cup jointed to the bottom of sleeve pipe 21, the inboard of overflow cover 23 is run through there is wire 22, sleeve pipe 21's inside is filled with sealed glue 24, be used for the transport of electric current through wire 22, setting through overflow cover 23 can be when filling sealed glue 24, restrict sealed glue 24, avoid sealed glue 24 to flow into casing 10, guarantee sealed glue 24 and can fill sleeve pipe 21 completely, make the clearance between sleeve pipe 21 and the wire 22 sealed completely, isolated circulation of air.

Referring to fig. 1-2, one end of the wire 22 penetrates through the overflow sleeve 23 and is electrically connected to the wiring board 15, the drying block 13 is disposed at the bottom of the wiring board 15, the drying block 13 is disposed to dry the air inside the housing 10, and the drying block 13 is close to the wiring board 15 to prevent the wiring board 15 from being affected with moisture.

Referring to fig. 1, a piezoelectric ceramic 11 is disposed at the bottom end of a casing 10, a sound insulation layer 12 is disposed outside the piezoelectric ceramic 11, and the sound insulation layer 12 is made of sound-absorbing cotton to reduce noise transmission and control noise inside the casing 10.

Referring to fig. 1, the length of the support sleeve 16 is consistent with the length of the drying tube 17, one side of the cushion block 18 is tightly attached to one end of the support sleeve 16, and the support sleeve 16 is used as a stress unit to resist the pressure of the cushion block 18, so as to prevent the drying tube 17 from being damaged due to extrusion.

Referring to fig. 1, an inner thread is formed on the inner side of the upper end of the casing 10, an outer thread matched with the inner thread is formed on the outer side of the locking block 20, the locking block 20 can be fixed inside the casing 10 by screwing the locking block 20, one end face of the locking block 20 abuts against the rubber pad 19, one end face of the rubber pad 19 abuts against the end face of the cushion block 18, the rubber pad 19 can abut against the locking block 20, the rubber pad 19 is fixed, air is isolated through the rubber pad 19, and sealing performance is guaranteed.

The utility model discloses when concrete implementation: when the sealing of the lead 22 is performed, firstly, one end of the lead 22 is welded on the wiring board 15, then the supporting sleeve 16 is placed in the shell 10, then the drying tube 17 is placed to be embedded in the inner wall of the supporting sleeve 16, then the cushion block 18 and the rubber pad 19 are placed, then one end of the lead 22 penetrates through the overflow sleeve 23 and penetrates through the sleeve 21, the sleeve 21 is inserted into the shell 10, the locking block 20 is screwed into the shell 10, the rubber pad 19 can be propped against the rubber pad 19 through the locking block 20, the rubber pad 19 is fixed, air is isolated through the rubber pad 19, finally, the sealant 24 is poured, when the sealant 24 is poured through the overflow sleeve 23, the sealant 24 is limited to prevent the sealant 24 from flowing into the housing 10, so that the sealant 24 can completely fill the casing 21, the gap between the casing 21 and the lead 22 is completely sealed, and air circulation is isolated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sealed ultrasonic transducer, includes casing (10), sets up at inside piezoceramics (11), wiring board (15) of casing (10) and connect conductive post (14) of piezoceramics (11) and wiring board (15), its characterized in that: the inner wall of casing (10) is pegged graft and is had support sleeve (16), the inner wall of support sleeve (16) is provided with drying tube (17), the inside of casing (10) is provided with cushion (18), the upper surface of cushion (18) is hugged closely and is had rubber pad (19), the upper end inboard of casing (10) is provided with latch segment (20), latch segment (20) inboard fixed mounting has sleeve pipe (21), overflow cover (23) have been cup jointed to the bottom of sleeve pipe (21), wire (22) have been run through to the inboard of overflow cover (23), sealed glue (24) have been filled into to the inside of sleeve pipe (21).

2. The sealed ultrasonic transducer of claim 1, wherein: one end of the lead (22) penetrates through the overflow sleeve (23) and then is electrically connected with the wiring board (15), and the bottom of the wiring board (15) is provided with a drying block (13).

3. The sealed ultrasonic transducer of claim 1, wherein: piezoceramics (11) set up the bottommost at casing (10), piezoceramics (11)'s the outside is provided with puigging (12), the material of puigging (12) is chooseed for use and is inhaled the sound cotton.

4. The sealed ultrasonic transducer of claim 1, wherein: the length of the supporting sleeve (16) is consistent with that of the drying pipe (17), and one side of the cushion block (18) is tightly attached to one end of the supporting sleeve (16).

5. The sealed ultrasonic transducer of claim 1, wherein: an internal thread is formed on the inner side of the upper end of the shell (10), and an external thread matched with the internal thread is formed on the outer side of the locking block (20).

6. The sealed ultrasonic transducer of claim 1, wherein: one end face of the locking block (20) abuts against the rubber pad (19), and one end face of the rubber pad (19) abuts against the end face of the cushion block (18).