A waterproof sealing structure of an ultrasonic transducer

By designing a waterproof sealing structure for the ultrasonic transducer and utilizing components such as anchoring rings, sealing tubes, and water-soluble membranes, the problem of water seepage in the ultrasonic transducer under water was solved, achieving effective waterproof sealing and leakage monitoring.

CN224389252UActive Publication Date: 2026-06-23SUZHOU CHAOWEI ELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU CHAOWEI ELECTRONICS CO LTD
Filing Date
2025-06-14
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing ultrasonic transducers lack a waterproof structure, causing water to seep into the rear end when operating underwater, damaging internal components.

Method used

A waterproof sealing structure was designed, including an anchoring ring, a sealing tube, a sealing rubber ring, a threaded ring, and a water ingress warning structure. The ultrasonic transducer body is sealed through threaded connection and deformation of the sealing rubber ring, and leakage is monitored in real time by a transparent window and a water-soluble membrane.

Benefits of technology

It effectively prevents water from entering the ultrasonic transducer when it is working underwater, ensures the normal operation of internal components, and can detect water leakage in time, thus achieving a waterproof and sealing effect for the ultrasonic transducer.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224389252U_ABST
    Figure CN224389252U_ABST
Patent Text Reader

Abstract

The utility model relates to ultrasonic transducer technical field especially is a kind of waterproof sealing structure of ultrasonic transducer, including ultrasonic transducer main part, the tail of ultrasonic transducer main part is fixedly installed with connecting wire;When carrying out sealing waterproof work to ultrasonic transducer main part, by fixing the anchoring ring in the tail of ultrasonic transducer main part, then by sealing the pipe on the top of anchoring ring, after aligning second side ear and first side ear, make sealing pipe move down by fixed bolt rotation, at this time, pad is contacted with sealing rubber ring and presses it, make sealing rubber ring occur deformation and block the gap of annular groove plate and sealing pipe, so that it reaches sealing, simultaneously, after the threaded ring is sleeved on the outer surface of water inlet warning structure, water inlet warning structure is inserted into the tail hole of ultrasonic transducer main part, then threaded ring is inserted into threaded pipe and rotates, so that handle and conical groove are tightly combined to form sealing, thereby reaches the purpose of sealing waterproof to the rear end of ultrasonic transducer main part.
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Description

Technical Field

[0001] This utility model relates to the field of ultrasonic transducer technology, specifically to a waterproof sealing structure for an ultrasonic transducer. Background Technology

[0002] The function of an ultrasonic transducer is to convert input electrical power into mechanical power (i.e., ultrasonic waves) and then transmit it, while consuming very little power itself. The key technical challenge for ultrasonic transducers is designing one with a long operating range and wide bandwidth. The transducer consists of a housing, a matching layer, piezoelectric ceramic disk transducers, a backing, lead cables, and a Cymbal array receiver. The piezoelectric ceramic disk transducers are made of thickness-polarized PZT-5 piezoelectric material, and the Cymbal array receiver consists of 8-16 Cymbal transducers, two metal rings, and rubber gaskets. This invention achieves an operating range greater than 35m and a bandwidth of 10kHz, enabling the detection of high-speed moving targets at long distances.

[0003] Existing ultrasonic transducers still have certain shortcomings in practical use: they lack a waterproof structure for the rear end, which causes water to seep into the rear end when the transducer is working underwater, resulting in damage to internal components. Based on the shortcomings of existing technology, this utility model designs a waterproof sealing structure for ultrasonic transducers. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a waterproof sealing structure for an ultrasonic transducer, which has the advantage of sealing and waterproofing the rear end of the ultrasonic transducer.

[0005] This utility model provides the following technical solution: a waterproof sealing structure for an ultrasonic transducer, comprising an ultrasonic transducer body, a connecting wire fixedly installed at the tail of the ultrasonic transducer body, and a sealing structure fixedly installed on the outer surface of the ultrasonic transducer body; the sealing structure includes an anchoring ring and a sealing tube, an annular groove plate fixedly installed at the top of the anchoring ring, a sealing ring provided inside the annular groove plate, first side ears fixedly installed on both sides of the outer surface of the annular groove plate, a pressure pad fixedly installed at the bottom of the sealing tube, second side ears fixedly installed on both sides of the outer surface of the sealing tube, fixing bolts installed in the internal threads of the two second side ears, a conical groove fixedly installed inside the sealing tube, a threaded tube fixedly installed at the bottom of the conical groove, a threaded ring installed in the internal threads of the threaded tube, and a conical sealing gasket fixedly installed at the top of the threaded ring.

[0006] By adopting the above technical solution, the tail of the ultrasonic transducer body can be sealed by the annular groove plate, sealing tube, and sealing ring. At the same time, after the threaded ring is put on the outer surface of the water ingress warning structure, the water ingress warning structure is inserted into the insertion hole at the tail of the ultrasonic transducer body. Then, the threaded ring is inserted into the threaded tube and rotated to make the handle fit tightly with the conical groove to form a seal. This can prevent water from entering the tail of the ultrasonic transducer body and ensure that it can work normally underwater.

[0007] As a preferred embodiment of this utility model, a throttle is fixedly installed on the top of the conical sealing gasket, and the threaded ring is fitted onto the outer surface of the water ingress warning structure.

[0008] By adopting the above technical solution, the internal mechanism can be rotated and moved downwards by rotating the throttle, thereby making the conical sealing gasket fit into the conical groove.

[0009] As a preferred embodiment of this utility model, a transparent window is provided on the outer surface of the sealing tube.

[0010] By adopting the above technical solution and through the specified settings, the water ingress at the tail end of the ultrasonic transducer body can be observed underwater.

[0011] As a preferred embodiment of this utility model, a water ingress warning structure is fixedly installed on one side of the outer surface of the sealing tube, and the water ingress warning structure includes a side tube.

[0012] By adopting the above technical solution, the side tube is set on one side of the outer surface of the sealing tube, which is connected to the sealing tube.

[0013] As a preferred embodiment of this utility model, a water-soluble film is provided inside the side tube, and a protruding tube is fixedly installed on the top of the side tube.

[0014] By adopting the above technical solution and through the setting, when the sealing pipe leaks, it can come into contact with the water and dissolve it.

[0015] As a preferred embodiment of this utility model, a sliding tube is slidably installed inside the protruding tube, and through holes are opened on both sides of the outer surface of the sliding tube.

[0016] By adopting the above technical solution, when the sliding tube is inside the protruding tube, the side tube is not connected to the outside; when the sliding tube is outside the protruding tube, the side tube is connected to the outside.

[0017] As a preferred embodiment of this utility model, a spring is fixedly installed at one end of the top of the protruding tube.

[0018] By adopting the above technical solution, the spring can be set so that the spring deforms when the syringe is inserted into the slide tube, thus generating power for the subsequent disengagement of the syringe and the reset of the slide tube.

[0019] As a preferred embodiment of this utility model, the top end of the spring is fixedly connected to the skirt of the slide tube.

[0020] By adopting the above technical solution, the top of the spring is connected to the skirt of the slide tube, which provides a limit for the spring.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. A waterproof sealing structure for an ultrasonic transducer, wherein during the waterproof sealing of the ultrasonic transducer body, an anchoring ring is fixed to the tail of the ultrasonic transducer body, and then a sealing tube is fitted over the anchoring ring. After aligning the second and first side ears, the sealing tube is moved downward by rotating the fixing bolt. At this time, the pressure pad contacts the sealing ring and applies pressure, causing the sealing ring to deform and block the gap between the annular groove plate and the sealing tube, thus achieving a seal. Simultaneously, a threaded ring is fitted over the outer surface of the water ingress warning structure, and the water ingress warning structure is inserted into the insertion hole at the tail of the ultrasonic transducer body. Then, the threaded ring is inserted into the threaded tube and rotated to make the handle fit tightly with the conical groove to form a seal, thereby achieving the purpose of waterproof sealing of the rear end of the ultrasonic transducer body.

[0023] 2. The waterproof sealing structure of this ultrasonic transducer includes a water ingress warning structure. Before the ultrasonic transducer body is working underwater, the syringe head is inserted into the slide tube and pressed down, causing the spring to compress and drive the slide tube into the side tube. At this time, the through hole is connected to the side tube, and pigment can be injected into the side tube. When the ultrasonic transducer body is working underwater and water leakage occurs, the water-soluble film is dissolved by the water, allowing the pigment inside the side tube to enter the sealed tube. At this time, the water leakage can be observed in time through the transparent window. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the sealing structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the threaded ring structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the side tube structure of this utility model;

[0028] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0029] In the diagram: 1. Ultrasonic transducer body; 2. Sealing structure; 21. Anchor ring; 22. Annular groove plate; 23. Sealing ring; 24. First side ear; 25. Sealing tube; 26. Pressure pad; 27. Second side ear; 28. Fixing bolt; 29. ​​Transparent window; 210. Conical groove; 211. Threaded tube; 212. Conical sealing gasket; 213. Threaded ring; 214. Turn handle; 3. Connecting wire; 4. Water ingress warning structure; 41. Side tube; 42. Water-soluble film; 43. Protruding tube; 44. Sliding tube; 45. Through hole; 46. Spring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-5 A waterproof sealing structure for an ultrasonic transducer includes an ultrasonic transducer body 1, a connecting wire 3 fixedly installed at the tail of the ultrasonic transducer body 1, and a sealing structure 2 fixedly installed on the outer surface of the ultrasonic transducer body 1. The sealing structure 2 includes an anchoring ring 21 and a sealing tube 25. An annular groove plate 22 is fixedly installed on the top of the anchoring ring 21. A sealing ring 23 is provided inside the annular groove plate 22. First side ears 24 are fixedly installed on both sides of the outer surface of the annular groove plate 22. A pressure pad 26 is fixedly installed on the bottom of the sealing tube 25. Second side ears 27 are fixedly installed on both sides of the outer surface of the sealing tube 25. Fixing bolts 28 are installed inside the two second side ears 27. A conical groove 210 is fixedly installed inside the sealing tube 25. A threaded tube 211 is fixedly installed at the bottom of the conical groove 210. A threaded ring 213 is installed inside the threaded tube 211. A conical sealing gasket 212 is fixedly installed on the top of the threaded ring 213.

[0032] Please see Figure 2-5 A handle 214 is fixedly installed on the top of the conical sealing gasket 212, and a threaded ring 213 is fitted onto the outer surface of the water ingress warning structure 4. A transparent window 29 is provided on the outer surface of the sealing tube 25.

[0033] The underwater state of the ultrasonic transducer body 1 can be observed through the transparent window 29, allowing for timely detection of leaks. By rotating the handle 214, the threaded ring 213 can be threadedly connected to the threaded tube 211, causing the conical sealing gasket 212 and the conical groove 210 to fit tightly together to form a seal.

[0034] Please see Figure 4-5A water ingress warning structure 4 is fixedly installed on one side of the outer surface of the sealing tube 25. The water ingress warning structure 4 includes a side tube 41. A water-soluble film 42 is provided inside the side tube 41, and a protruding tube 43 is fixedly installed on the top of the side tube 41. A sliding tube 44 is slidably installed inside the protruding tube 43, and through holes 45 are opened on both sides of the outer surface of the sliding tube 44. A spring 46 is fixedly installed at one top end of the protruding tube 43. The top end of the spring 46 is fixedly connected to the skirt of the sliding tube 44.

[0035] By inserting the syringe head into the slide tube 44 and pressing it down, the spring 46 is compressed, causing the slide tube 44 to enter the side tube 41. At this time, the through hole 45 is connected to the side tube 41, and the pigment can be injected into the side tube 41. When the ultrasonic transducer body 1 is working underwater and water leakage occurs, the water-soluble film 42 is dissolved by water, allowing the pigment inside the side tube 41 to enter the sealed tube 25. At this time, the water leakage can be observed in time through the transparent window 29.

[0036] Working principle: When a waterproof sealing structure for an ultrasonic transducer is used, before the main body 1 of the ultrasonic transducer operates underwater, the syringe head is inserted into the slide tube 44 and pressed down, causing the spring 46 to compress and drive the slide tube 44 into the side tube 41. At this time, the through hole 45 is connected to the side tube 41, and pigment can be injected into the side tube 41. When the main body 1 of the ultrasonic transducer operates underwater and leakage occurs, the water-soluble film 42 is dissolved by water, allowing the pigment inside the side tube 41 to enter the sealing tube 25. At this time, the leakage can be observed in time through the transparent window 29. Subsequently, the anchoring ring 21 is fixed to the ultrasonic transducer. At the tail of the transducer body 1, the sealing tube 25 is then fitted over the anchoring ring 21, and the second side ear 27 and the first side ear 24 are aligned. The sealing tube 25 is then moved downward by rotating the fixing bolt 28. At this time, the pressure pad 26 contacts the sealing ring 23 and applies pressure to it, causing the sealing ring 23 to deform and block the gap between the annular groove plate 22 and the sealing tube 25, thus achieving a seal. At the same time, the threaded ring 213 is fitted over the outer surface of the water inlet warning structure 4 and then the water inlet warning structure 4 is inserted into the insertion hole at the tail of the ultrasonic transducer body 1. Then, the threaded ring 213 is inserted into the threaded tube 211 and rotated to make the handle 214 fit tightly with the conical groove 210 to form a seal.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof sealing structure for an ultrasonic transducer, comprising an ultrasonic transducer body (1), characterized in that: A connecting line (3) is fixedly installed at the tail of the ultrasonic transducer body (1), and a sealing structure (2) is fixedly installed on the outer surface of the ultrasonic transducer body (1). The sealing structure (2) includes an anchoring ring (21) and a sealing tube (25). An annular groove plate (22) is fixedly installed on the top of the anchoring ring (21). A sealing ring (23) is provided inside the annular groove plate (22). First side ears (24) are fixedly installed on both sides of the outer surface of the annular groove plate (22). A pressure pad (26) is fixedly installed at the bottom of the sealing tube (25). Second side ears (27) are fixedly installed on both sides of the outer surface of the sealing tube (25). Fixing bolts (28) are installed in the internal threads of the two second side ears (27). A conical groove (210) is fixedly installed inside the sealing tube (25). A threaded tube (211) is fixedly installed at the bottom of the conical groove (210). A threaded ring (213) is installed in the internal threads of the threaded tube (211). A conical sealing gasket (212) is fixedly installed at the top of the threaded ring (213).

2. The waterproof sealing structure for an ultrasonic transducer according to claim 1, characterized in that: A throttle (214) is fixedly installed on the top of the conical sealing gasket (212), and the threaded ring (213) is fitted on the outer surface of the water ingress warning structure (4).

3. The waterproof sealing structure for an ultrasonic transducer according to claim 1, characterized in that: A transparent window (29) is provided on the outer surface of the sealing tube (25).

4. The waterproof sealing structure for an ultrasonic transducer according to claim 1, characterized in that: A water ingress warning structure (4) is fixedly installed on one side of the outer surface of the sealing tube (25), and the water ingress warning structure (4) includes a side tube (41).

5. The waterproof sealing structure for an ultrasonic transducer according to claim 4, characterized in that: The side tube (41) is provided with a water-soluble film (42) inside, and a protruding tube (43) is fixedly installed on the top of the side tube (41).

6. The waterproof sealing structure for an ultrasonic transducer according to claim 5, characterized in that: The protruding tube (43) has a sliding tube (44) slidably installed inside it, and through holes (45) are provided on both sides of the outer surface of the sliding tube (44).

7. The waterproof sealing structure for an ultrasonic transducer according to claim 5, characterized in that: A spring (46) is fixedly installed at one end of the top of the protruding tube (43).

8. The waterproof sealing structure for an ultrasonic transducer according to claim 7, characterized in that: The top end of the spring (46) is fixedly connected to the skirt of the slide tube (44).