CN215918088U - High leakproofness ultrasonic transducer - Google Patents
High leakproofness ultrasonic transducer Download PDFInfo
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- CN215918088U CN215918088U CN202122257506.9U CN202122257506U CN215918088U CN 215918088 U CN215918088 U CN 215918088U CN 202122257506 U CN202122257506 U CN 202122257506U CN 215918088 U CN215918088 U CN 215918088U
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Abstract
The utility model is suitable for the technical field of ultrasonic transducers, and provides a high-sealing ultrasonic transducer which comprises a transducer assembly and a sealing cover assembly.
Description
Technical Field
The utility model belongs to the technical field of ultrasonic transducers, and particularly relates to an ultrasonic transducer with high sealing performance.
Background
The ultrasonic transducer is an energy conversion device for converting high-frequency electric energy into mechanical energy, and the energy conversion process mainly converts an electric signal into mechanical vibration and then generates sound waves by the mechanical vibration; ultrasonic transducers are widely used in the fields of agriculture, industry, medical treatment and the like. For example, an ultrasonic transducer may be applied to a fish finder which transmits a signal by using the ultrasonic transducer, transmits the signal through air or water, uses ultrasonic waves to contact an object in the water to feed back the signal, then processes the signal by an internal processor, and finally displays the fish finder on a screen.
The current ultrasonic transducer structure mainly comprises a shell, a transducer element and the like. But its simple structure, sealing performance is not good to can lead to the life of product not enough, also inconvenient use under some adverse circumstances.
SUMMERY OF THE UTILITY MODEL
The utility model provides an ultrasonic transducer with high sealing property, and aims to solve the problems in the prior art.
The utility model is realized in this way, a high-tightness ultrasonic transducer, comprising:
a transducer assembly comprising a cap housing having a piezoelectric element mounted on an inside top wall thereof; the inner wall of the cap shell is provided with an annular seat plate which extends inwards; the bottom surface of the seat plate is attached with an acoustic board; a damping block is arranged below the sound-absorbing plate; a sealing block is arranged below the damping block; two elastic press sealing pieces are arranged below the sealing block; the two elastic press sealing pieces are arranged in an up-down symmetrical mode, and a plurality of press sealing springs are arranged between the two elastic press sealing pieces;
the cover assembly comprises a cover shell, and the cover shell is detachably covered on the bottom of the cover shell; a plurality of gasket springs are arranged on the bottom wall of the inner side of the shell cover; a sealing gasket is attached to the lower edge of the side wall of the cap shell; the two ends of the gasket spring are respectively connected with the lower surface of the sealing gasket and the inner side bottom wall of the shell cover, and the gasket spring is abutted against the sealing gasket; the piezoelectric element is connected with a conduit; the conduit penetrates through the sound-absorbing plate, the shock-absorbing block, the sealing block and the sealing gasket and extends to the bottom wall of the shell cover.
Preferably, the elastic press seal piece is of an annular structure; the section of the elastic press sealing piece is of a V-shaped structure;
the elastic press sealing piece is provided with a first press sealing part forming the inner wall of the elastic press sealing piece, a second press sealing part forming the outer wall of the elastic press sealing piece, and a connecting part connecting the first press sealing part and the second press sealing part; the first press sealing part and the second press sealing part form an included angle; the first press sealing part is tightly attached to the conduit; the second press seal part is tightly attached to the inner side wall of the cap shell;
the elastic press sealing piece positioned above the press sealing spring is provided with the included angle with an upward opening; the elastic press sealing piece positioned below the press sealing spring is provided with the included angle with the opening facing downwards.
Preferably, one side surface of each of the two elastic press sealing pieces opposite to the connecting part is provided with an inner rod which extends oppositely but is not contacted;
the two inner rods extend into the inner side of the press seal spring.
Preferably, the outer surface of the side wall of the cap shell is provided with an installation clamping groove which is formed by inwards sinking;
the inner surface of the side wall of the shell cover is provided with a clamping sleeve which extends inwards and is matched with the mounting clamping groove;
the clamping sleeve is detachably embedded into the mounting clamping groove.
Preferably, the transducer assembly further comprises a housing;
the shell sleeve is detachably sleeved on the outer surface of the cap shell;
the lower edge of the side wall of the shell is provided with a pressing part formed by a protrusion; the extrusion part is tightly attached to the upper end of the side wall of the shell cover.
Preferably, the outer surface of the side wall of the cap shell is provided with a first convex ring which is convexly formed and a first concave groove which is concavely formed;
the inner surface of the side wall of the shell is provided with a second convex ring which is convexly formed and a second groove which is concavely formed;
the first convex ring is detachably embedded into the second groove; the second convex ring is detachably embedded into the first groove.
Preferably, the extrusion part comprises two sealing rings with annular structures;
the two sealing rings are arranged concentrically inside and outside.
Preferably, the upper surface of the damper block is provided with a first gap bulge portion with an annular structure, and the first gap bulge portion is tightly attached to the sound-absorbing plate.
Preferably, the upper surface of the sealing block is provided with a second gap bulge part with an annular structure; the second gap bulge part is tightly attached to the damping block.
Preferably, the outer surface of the side wall of the housing cover is provided with anti-slip threads distributed along the circumferential direction of the side wall of the housing cover.
Compared with the prior art, the utility model has the beneficial effects that: according to the high-sealing ultrasonic transducer, the cap shell with the acoustic panel, the shock absorption block, the sealing block and the elastic press sealing piece arranged on the inner side is arranged, the cap cover with the sealing gasket and the gasket spring for supporting the sealing gasket is arranged at the bottom of the cap shell, and the piezoelectric element is arranged on the top wall of the inner side of the cap shell, so that a multi-layer sealing structure can be formed in the cap shell, the whole structure is stable, the disassembly is convenient, the sealing performance of the ultrasonic transducer is effectively improved, the service life of the ultrasonic transducer is prolonged, and the application range of the ultrasonic transducer is wider.
Drawings
Fig. 1 is a schematic diagram of an overall structure of an ultrasonic transducer with high hermeticity according to the present invention.
FIG. 2 is a schematic diagram of a transducer assembly of the present invention.
Fig. 3 is a schematic structural view of the housing of the present invention.
Fig. 4 is a structural schematic of the cap shell of the present invention.
Fig. 5 is a schematic structural view of the elastic press seal member and the press seal spring of the present invention.
In the figure: 1. a transducer assembly; 11. a cap shell; 111. installing a clamping groove; 112. a first convex ring; 113. a first groove; 114. a seat plate; 12. a piezoelectric element; 13. a sound-absorbing panel; 14. a damper block; 141. a first gap bulge part; 15. a sealing block; 151. a second gap bulge part; 16. elastic press-sealing member; 161. a first press seal portion; 162. a second press seal portion; 163. a connecting portion; 17. a press seal spring; 18. a shell; 181. a second groove; 182. a second convex ring; 183. a pressing section; 19. a conduit; 2. a closure assembly; 21. a shell cover; 211. a card sleeve; 212. anti-skid lines; 22. sealing gaskets; 23. a shim spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1, the present invention provides a technical solution: a high-tightness ultrasonic transducer comprises a transducer assembly 1 and a cover assembly 2.
The transducer assembly 1 comprises a cap shell 11, wherein a piezoelectric element 12 is arranged on the inner top wall of the cap shell 11; the inner wall of the cap shell 11 has an annular seat plate 114 formed to extend inward; the sound-absorbing board 13 is attached to the bottom surface of the seat board 114; a damping block 14 is arranged below the sound-absorbing plate 13; a sealing block 15 is arranged below the shock absorption block 14; two elastic press-sealing pieces 16 are arranged below the sealing block 15; the two elastic press-sealing pieces 16 are arranged in an up-down symmetrical manner, and a plurality of press-sealing springs 17 are arranged between the two elastic press-sealing pieces 16. The lower end of the cap shell 11 is open.
Wherein, the top of the cap shell 11 is a hemispherical structure, and the cap shell 11 is integrally formed by aluminum material. The inner diameter of the annular base plate 114 is smaller than the piezoelectric element 12, so that the piezoelectric element 12 can be mounted conveniently, and the piezoelectric element 12 can generate ultrasonic waves when being electrified. The sound-absorbing plate 13 is made of sound-absorbing material, which may be felt, sound-absorbing cotton, etc. The damper block 14 is made of a damping material, which may be a foamable silicone resin. Sound waves or vibrations radiated to the inside of the cap case 11 are absorbed by these sound-absorbing plates 13 and damper blocks 14. The elastic press-sealing piece 16 can seal the space between the damping block 14 and the bottom of the cap shell 11, the two elastic press-sealing pieces 16 can form a double-layer sealing structure, the press-sealing spring 17 can extrude the two elastic press-sealing pieces 16 and the damping block 14, the damping block 14 can continue to extrude the sound-absorbing plate 13, and the connection stability between the parts is effectively improved.
Specifically, referring to fig. 2 and 5, the elastic press seal 16 is a ring structure; the section of the elastic press seal piece 16 is of a V-shaped structure; the elastic press seal 16 has a first press seal portion 161 forming an inner wall of the elastic press seal 16, a second press seal portion 162 forming an outer wall of the elastic press seal 16, and a connecting portion 163 connecting the first press seal portion 161 and the second press seal portion 162; the first press seal portion 161 and the second press seal portion 162 form an included angle; the first press seal 161 is tightly attached to the conduit 19; the second press seal 162 abuts against the inner side wall of the cap shell 11. The elastic press seal piece 16 positioned above the press seal spring 17 is provided with an included angle with an upward opening; the elastic press seal 16 located below the press seal spring 17 has an angle opening downward.
According to the above solution, the connection portion 163 has a flat surface contacting the press-sealing spring 17. The press-sealing spring 17 may press the two elastic press-sealing members 16, and may drive the first and second press-sealing portions 161 and 162 to open to increase an angle, thereby improving a sealing effect of the first and second press-sealing portions 161 and 162.
Furthermore, the opposite side surfaces of the connecting parts 163 of the two elastic press-sealing parts 16 are provided with inner rods which extend oppositely but are not contacted; both inner rods extend into the inner side of the press-sealing spring 17. The interior pole is cylindric and the diameter is less than the internal diameter of press seal spring 17, and interior pole can provide direction stability for press seal spring 17 can be stable carry out flexible activity and avoid the dislocation.
The cover assembly 2 comprises a cover 21, and the cover 21 is detachably covered at the bottom of the cap shell 11; a plurality of gasket springs 23 are arranged on the inner bottom wall of the shell cover 21; a sealing gasket 22 is attached to the lower edge of the side wall of the cap shell 11; the two ends of the gasket spring 23 are respectively connected with the lower surface of the sealing gasket 22 and the inner side bottom wall of the shell cover 21, and the gasket spring 23 is abutted against the sealing gasket 22; the piezoelectric element 12 is connected with a conduit 19; the conduit 19 extends through the acoustic panel 13, the damper block 14, the sealing block 15 and the sealing gasket 22 and extends to the bottom wall of the cover 21.
Wherein, when the case cover 21 is installed, the gasket spring 23 can be compressed, the gasket spring 23 can provide support for the sealing gasket 22, and the sealing gasket 22 is made of rubber material. The conduit 19 houses a lead wire electrically connected to the piezoelectric element 12, thereby providing a source of electrical power to the piezoelectric element 12. Contacts for connection to an external power source are provided on the bottom wall of the housing cover 21 and are connected to the external power source via wires in the conduit 19.
As for the mounting structure between the cap housing 11 and the housing cover 21, in the present embodiment, the outer surface of the sidewall of the cap housing 11 has a mounting groove 111 formed to be recessed inward; the inner surface of the side wall of the shell cover 21 is provided with a clamping sleeve 211 which extends inwards and is matched with the mounting clamping groove 111; ferrule 211 is removably inserted into mounting pocket 111.
To provide protection to the cap shell 11, the transducer assembly 1 further comprises a housing sleeve 18; the shell 18 is detachably sleeved on the outer surface of the cap shell 11; the lower edge of the side wall of the housing 18 has a press portion 183 formed convexly; the pressing portion 183 is closely attached to the upper end of the side wall of the case cover 21. The housing 18 is made of a rubber material. The shape of the housing 18 matches the shape of the cap shell 11 so that the housing 18 can be integrally attached to the outer surface of the cap shell 11. The pressing portion 183 may seal a gap between the housing case 18 and the housing cover 21.
Further, the pressing portion 183 includes two ring-shaped seal rings; the two sealing rings are arranged concentrically from inside to outside. The sections of the two sealing rings are of hemispherical structures. The two sealing rings can form an inner layer and an outer layer for sealing, and the sealing effect is good.
Referring to fig. 1, 2, 3 and 4, regarding the mounting structure between the housing 18 and the cap shell 11, in the present embodiment, the outer surface of the sidewall of the cap shell 11 has a first convex ring 112 formed convexly and a first concave groove 113 formed concavely; the inner surface of the side wall of the housing 18 has a second convex ring 182 formed to be convex and a second concave groove 181 formed to be concave. When the shell 18 is installed, the first convex ring 112 is detachably inserted into the second groove 181; the second bead 182 is detachably fitted into the first groove 113. Therefore, the shell 18 can be installed through the first convex ring 112 and the second convex ring 182, the structure is stable, and the disassembly is convenient.
In addition, referring to fig. 1 and 2, the upper surface of the damper block 14 has a first gap protrusion 141 having a ring structure, and the first gap protrusion 141 is tightly attached to the sound-absorbing plate 13. The first gap protrusions 141 may be made of a silicon rubber or rubber material having elasticity, and the damper block 14 may press the sound-absorbing panel 13 through the first gap protrusions 141, so as to improve the structural stability of the sound-absorbing panel 13.
Similarly, the upper surface of the sealing block 15 has a second gap boss 151 with an annular structure; the second gap bulge 151 is tightly attached to the damper block 14. The second gap bulge part 151 can be made of elastic silica gel or rubber material, and the sealing block 15 can extrude the damping block 14 through the second gap bulge part 151, so that the structural stability of the damping block 14 is improved
In order to facilitate mounting of the cover 21, the outer surface of the side wall of the cover 21 has anti-slip threads 212 distributed along the circumferential direction of the side wall of the cover 21. When a user installs the shell cover 21, the user can touch the anti-slip threads 212 by fingers to conveniently control the shell cover 21, and the installation is more convenient.
When the high-sealing ultrasonic transducer is used, the piezoelectric element 12 generates ultrasonic waves when energized, and the sound-absorbing plate 13 and the damper 14 absorb sound waves or vibrations radiated to the inside of the cap case 11. The elastic press-sealing piece 16 can seal the space between the damping block 14 and the bottom of the cap shell 11, the two elastic press-sealing pieces 16 can form a double-layer sealing structure, the press-sealing spring 17 can extrude the two elastic press-sealing pieces 16 and the damping block 14, the damping block 14 can continue to extrude the sound-absorbing plate 13, and the connection stability between the parts is effectively improved. The pressing portion 183 may seal a gap between the housing case 18 and the housing cover 21. The housing cover 21 is mounted to compress the washer spring 23 and the washer spring 23 provides support for the sealing washer 22 to seal the lower end of the cap housing 11.
In summary, according to the high-sealing ultrasonic transducer of the present invention, the cap housing 11 having the sound-absorbing plate 13, the vibration-absorbing block 14, the sealing block 15 and the elastic press-sealing member 16 mounted on the inner side is provided, the cap cover 21 having the sealing gasket 22 and the gasket spring 23 supporting the sealing gasket 22 is further mounted at the bottom of the cap housing 11, and the piezoelectric element 12 is disposed on the top wall of the inner side of the cap housing 11, such that a multi-layer sealing structure can be formed in the cap housing 11, and the high-sealing ultrasonic transducer of the present invention has a stable overall structure, is convenient to detach, effectively improves the sealing performance of the ultrasonic transducer, prolongs the service life of the ultrasonic transducer, and also has a wider application range.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A high-sealing ultrasonic transducer is characterized in that: the method comprises the following steps:
a transducer assembly (1) comprising a cap housing (11), the inner top wall of the cap housing (11) being mounted with a piezoelectric element (12); the inner wall of the cap shell (11) is provided with an annular seat plate (114) formed by extending inwards; the bottom surface of the seat plate (114) is attached with a sound absorption plate (13); a damping block (14) is arranged below the sound-absorbing plate (13); a sealing block (15) is arranged below the damping block (14); two elastic press-sealing pieces (16) are arranged below the sealing block (15); the two elastic press sealing pieces (16) are arranged in an up-down symmetrical manner, and a plurality of press sealing springs (17) are arranged between the two elastic press sealing pieces (16);
the cover assembly (2) comprises a cover shell (21), and the cover shell (21) is detachably covered at the bottom of the cap shell (11); a plurality of gasket springs (23) are arranged on the bottom wall of the inner side of the shell cover (21); a sealing gasket (22) is attached to the lower edge of the side wall of the cap shell (11); the two ends of the gasket spring (23) are respectively connected with the lower surface of the sealing gasket (22) and the inner bottom wall of the shell cover (21), and the gasket spring (23) is abutted against the sealing gasket (22); the piezoelectric element (12) is connected with a conduit (19); the conduit (19) penetrates through the sound-absorbing plate (13), the shock-absorbing block (14), the sealing block (15) and the sealing gasket (22) and extends to the bottom wall of the shell cover (21).
2. The high-hermeticity ultrasonic transducer according to claim 1, wherein: the elastic press seal piece (16) is of an annular structure; the section of the elastic press sealing piece (16) is of a V-shaped structure;
the elastic press seal (16) has a first press seal portion (161) forming an inner wall of the elastic press seal (16), a second press seal portion (162) forming an outer wall of the elastic press seal (16), and a connecting portion (163) connecting the first press seal portion (161) and the second press seal portion (162); the first press sealing part (161) and the second press sealing part (162) form an included angle; the first press seal part (161) is tightly attached to the conduit (19); the second press seal part (162) is tightly attached to the inner side wall of the cap shell (11);
the elastic press sealing piece (16) positioned above the press sealing spring (17) is provided with the included angle with an upward opening; the elastic press sealing piece (16) positioned below the press sealing spring (17) is provided with the included angle with the opening facing downwards.
3. The high-hermeticity ultrasonic transducer according to claim 2, wherein: inner rods which extend oppositely but are not contacted are arranged on one opposite side surfaces of the connecting parts (163) of the two elastic press sealing pieces (16);
the two inner rods extend into the inner side of the press seal spring (17).
4. The high-hermeticity ultrasonic transducer according to claim 1, wherein: the outer surface of the side wall of the cap shell (11) is provided with an installation clamping groove (111) which is formed by inwards sinking;
the inner surface of the side wall of the shell cover (21) is provided with a clamping sleeve (211) which extends inwards and is matched with the mounting clamping groove (111);
the clamping sleeve (211) is detachably embedded into the mounting clamping groove (111).
5. The high-hermeticity ultrasonic transducer according to claim 1, wherein: the transducer assembly (1) further comprises a housing (18);
the shell sleeve (18) is detachably sleeved on the outer surface of the cap shell (11);
the lower edge of the side wall of the shell (18) is provided with a pressing part (183) formed by a protrusion; the pressing part (183) is tightly attached to the upper end of the side wall of the shell cover (21).
6. The high-hermeticity ultrasonic transducer according to claim 5, wherein: the outer surface of the side wall of the cap shell (11) is provided with a first convex ring (112) which is formed in a convex mode and a first concave groove (113) which is formed in a concave mode;
the inner surface of the side wall of the shell (18) is provided with a second convex ring (182) which is formed in an outward protruding mode and a second concave groove (181) which is formed in an inward concave mode;
the first convex ring (112) is detachably embedded into the second groove (181); the second convex ring (182) is detachably embedded in the first groove (113).
7. The high-hermeticity ultrasonic transducer according to claim 5, wherein: the extrusion part (183) comprises two sealing rings with annular structures;
the two sealing rings are arranged concentrically inside and outside.
8. The high-hermeticity ultrasonic transducer according to claim 1, wherein: the upper surface of the damping block (14) is provided with a first gap bulge part (141) with an annular structure, and the first gap bulge part (141) is tightly attached to the sound-absorbing plate (13).
9. The high-hermeticity ultrasonic transducer according to claim 1, wherein: the upper surface of the sealing block (15) is provided with a second gap bulge part (151) with an annular structure; the second gap bulge part (151) is tightly attached to the damping block (14).
10. The high-hermeticity ultrasonic transducer according to claim 1, wherein: the outer surface of the side wall of the shell cover (21) is provided with anti-slip threads (212) distributed along the circumferential direction of the side wall of the shell cover (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122257506.9U CN215918088U (en) | 2021-09-16 | 2021-09-16 | High leakproofness ultrasonic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122257506.9U CN215918088U (en) | 2021-09-16 | 2021-09-16 | High leakproofness ultrasonic transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215918088U true CN215918088U (en) | 2022-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122257506.9U Active CN215918088U (en) | 2021-09-16 | 2021-09-16 | High leakproofness ultrasonic transducer |
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| CN (1) | CN215918088U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115568905A (en) * | 2022-10-17 | 2023-01-06 | 深圳迈菲超声医疗器械有限公司 | Ultrasonic cutting device |
-
2021
- 2021-09-16 CN CN202122257506.9U patent/CN215918088U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115568905A (en) * | 2022-10-17 | 2023-01-06 | 深圳迈菲超声医疗器械有限公司 | Ultrasonic cutting device |
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