CN218282508U - Pressure pad ceramic ultrasonic transducer - Google Patents
Pressure pad ceramic ultrasonic transducer Download PDFInfo
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- CN218282508U CN218282508U CN202222359386.8U CN202222359386U CN218282508U CN 218282508 U CN218282508 U CN 218282508U CN 202222359386 U CN202222359386 U CN 202222359386U CN 218282508 U CN218282508 U CN 218282508U
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- 239000000919 ceramic Substances 0.000 title claims abstract description 70
- 239000002184 metal Substances 0.000 claims abstract description 76
- 229910052751 metal Inorganic materials 0.000 claims abstract description 76
- 239000000178 monomer Substances 0.000 claims abstract description 45
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003698 laser cutting Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- RIRXDDRGHVUXNJ-UHFFFAOYSA-N [Cu].[P] Chemical compound [Cu].[P] RIRXDDRGHVUXNJ-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
Abstract
A pressure pad ceramic ultrasonic transducer comprises a front cover component, a transducer component and a rear cover component; the energy conversion assembly comprises piezoelectric ceramic devices, a positive electrode plate monomer and a negative electrode plate monomer, wherein the positive electrode plate monomer and the negative electrode plate monomer are arranged among at least 4 piezoelectric ceramic devices in a staggered manner; the single structure of the positive and negative electrode plates comprises at least 2 metal electrode plates which are arranged in parallel at intervals, the inner sides of the metal electrode plates are connected through a first metal connecting rib, the outer side of the metal electrode plate at the near end is provided with a second metal connecting rib which extends axially, the first metal connecting rib and the second metal connecting rib are not overlapped in the circumferential direction of the metal electrode plates, and a positive electrode lead and a negative electrode lead are respectively led out of the single second metal connecting rib of the positive and negative electrode plates. The utility model discloses can effectively improve the stability of transducer work efficiency and work, avoid the cracked risk of piezoceramics, solve the poor problem of piezoceramics assembly precision.
Description
Technical Field
The utility model relates to an supersound cutter transducer, especially a pressure pad pottery ultrasonic transducer belongs to medical instrument technical field.
Background
As is known, a medical ultrasonic knife transducer is used for converting electric energy output by an ultrasonic host into ultrasonic energy and mechanical vibration energy, and then acts on bone tissues or soft tissues of a human body in combination with an ultrasonic knife to achieve the purpose of treating diseases through a surgery, and is a key component in a medical ultrasonic surgery system.
At present, the existing medical ultrasonic cutter transducer mainly comprises a front cover plate, piezoelectric ceramics, a metal sheet, a rear cover plate and the like. The piezoelectric ceramic is an essential core functional component in the ultrasonic transducer, and usually, a plurality of pieces of piezoelectric ceramic and a plurality of pieces of metal sheet which are overlapped together are compressed by a screw and a front cover plate. Because the parallel surfaces of the piezoelectric ceramics and the metal sheets have parallelism errors and assembly coaxiality errors, after the piezoelectric ceramics and the metal sheets are overlapped, the errors are continuously accumulated to influence the assembly precision, and further influence the use effect of the ultrasonic transducer.
Disclosure of Invention
In order to overcome the above-mentioned not enough of prior art, the utility model provides a pressure pad ceramic ultrasonic transducer, this transducer can effectively improve the stability of transducer work efficiency and work, avoids the cracked risk of piezoceramics, solves the poor problem of piezoceramics assembly precision.
The utility model provides a technical scheme that its technical problem adopted is:
a pressure pad ceramic ultrasonic transducer comprises a front cover assembly, a transducer assembly and a rear cover assembly, wherein the transducer assembly is fixedly connected to the near end of a front cover plate through the rear cover assembly; the rear cover assembly comprises a rear cover plate and a connecting piece, and the rear cover plate is fixed with the energy conversion assembly and the front cover plate into a whole through the connecting piece; an annular columnar insulating spacer is arranged between the energy conversion assembly and the connecting piece;
the energy conversion assembly comprises piezoelectric ceramic devices, a positive electrode plate monomer and a negative electrode plate monomer, wherein the positive electrode plate monomer and the negative electrode plate monomer are arranged among at least four piezoelectric ceramic devices in a staggered mode;
the positive electrode plate monomer and the negative electrode plate monomer respectively comprise at least two metal electrode plates which are arranged in parallel at intervals, the inner sides of the metal electrode plates are connected through a first metal connecting rib, the outer side of one metal electrode plate at the near end is provided with a second metal connecting rib which extends axially, and the first metal connecting rib and the second metal connecting rib are not overlapped in the circumferential direction of the metal electrode plates; the metal electrode plates of the positive electrode plate monomer and the metal electrode plates of the negative electrode plate monomer are respectively arranged on two sides of the adjacent piezoelectric ceramic devices in a staggered mode, and a positive wire and a negative wire are respectively led out from the second metal connecting rib of the positive electrode plate monomer and the second metal connecting rib of the negative electrode plate monomer.
Optionally, the front cover assembly includes a front cover plate having a connecting flange at a distal end thereof, and the front cover plate is a revolving body structure as a whole; or the front cover assembly comprises a front cover plate in a reducing sleeve shape, and the total length of the front cover plate is not more than 60mm.
Optionally, the connecting piece includes a locking screw and an internal thread hole formed at the proximal end of the front cover plate, and the locking screw passes through the central holes of the rear cover plate, the piezoelectric ceramic device, the single positive electrode plate and the single negative electrode plate and is connected in the internal thread hole in a matching manner.
Optionally, the material density of the front cover plate is not greater than that of the rear cover plate, and a gasket is arranged between the front cover plate and the energy conversion assembly.
Optionally, the gasket is a metal gasket with a thickness of 0.05-5 mm.
Optionally, the connecting piece includes a fastening nut and a near-end screw rod disposed at an end of the front cover plate, and the near-end screw rod penetrates through the piezoelectric ceramic device, the positive electrode plate unit, the negative electrode plate unit and at least one center hole of the rear cover plate to be matched with the fastening nut.
Optionally, the connecting piece includes a near-end screw rod disposed at the end of the front cover plate and an internal threaded hole formed in the center of the rear cover plate, and the near-end screw rod penetrates through the piezoelectric ceramic device, the single positive electrode plate and the single negative electrode plate and is connected to the internal threaded hole of the rear cover plate in a matching manner.
Optionally, a gasket is further sleeved at the root of the screw rod at the near end of the front cover plate, and the gasket is compressed between the front cover plate and the energy conversion assembly through a fastening nut or a rear cover plate.
Optionally, the gasket is a metal gasket with a thickness of 0.05-5 mm.
Optionally, the length of the insulating spacer is not shorter than the axial thickness of the transducer assembly.
Compared with the prior art, the utility model discloses a pressure pad ceramic ultrasonic transducer, through setting up positive electrode piece monomer/negative electrode piece monomer that metal electrode piece, first metal connecting rib and second metal connecting rib structure, and stagger positive electrode piece monomer and negative electrode piece monomer and arrange between at least four piezoceramics devices, in addition the annular column insulating barrier who sets up between transducing subassembly and the connecting piece, constitute the connecting device of novel structure; through this kind of novel structural connection device, it is spacing to utilize insulating barrier member, can effectively guarantee piezoelectric ceramic device and with positive and negative electrode slice monomer and the axiality of front and back lid subassembly, has effectively improved the assembly precision, has avoided piezoelectric ceramic to break and the cracked risk of electrode, and then has effectively improved the stability of transducer work efficiency and work.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a perspective view of an embodiment 1 of the present invention;
fig. 2 is a cross-sectional view of an embodiment 1 of the present invention;
fig. 3 is a perspective view of a front cover plate according to an embodiment 1 of the present invention;
fig. 4 is a perspective view of a rear cover plate according to an embodiment 1 of the present invention;
fig. 5 is a perspective view of a locking screw according to an embodiment 1 of the present invention;
fig. 6 is a perspective view of a piezoelectric ceramic device according to an embodiment 1 of the present invention;
fig. 7 is a perspective view of a single positive electrode sheet in an embodiment 1 of the present invention;
fig. 8 is a perspective view of a gasket according to an embodiment 1 of the present invention;
fig. 9 is a perspective view of an insulating spacer according to an embodiment 1 of the present invention;
the reference numerals in fig. 1 to 9 of example 1 are as follows:
1-a front cover assembly; 11-a front cover plate; 111-a connecting flange; 112-proximal internally threaded hole;
2-a transducer assembly; 21-a piezoelectric ceramic device; 22-positive electrode sheet monomer; 221-a metal electrode sheet; 222-a first metal tie bar; 223-second metal connecting ribs; 23-negative electrode sheet monomer; 24-positive electrode lead; 25-negative electrode lead;
3-a rear cover assembly; 31-a back cover plate; 32-a connector; 321-locking screws; 4-a gasket; 5-insulating spacer.
Fig. 10 is a perspective view of an embodiment 2 of the present invention;
fig. 11 is a sectional view of an embodiment 2 of the present invention;
fig. 12 is a perspective view of a front cover plate according to an embodiment 2 of the present invention;
fig. 13 is a perspective view of a fastening nut according to an embodiment 2 of the present invention;
fig. 14 is an assembly view of the piezoelectric ceramic device, the positive electrode sheet unit and the negative electrode sheet unit according to embodiment 2 of the present invention;
the reference numerals in fig. 10 to 14 of example 2 are explained as follows:
11-a front cover plate; 112-a proximal screw;
21-a piezoelectric ceramic device; 22-positive electrode sheet monomer; 23-a negative electrode sheet monomer;
31-a rear cover plate; 32-a connector; 321-fastening nut.
Fig. 15 is a perspective view of embodiment 3 of the present invention;
fig. 16 is a sectional view of an embodiment 3 of the present invention;
the reference numerals in fig. 15 to 16 of example 3 are explained as follows:
11-a front cover plate; 112-a proximal screw;
3-a rear cover assembly; 31-rear cover plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. 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.
Example 1
Fig. 1 to 9 are schematic structural views illustrating a pressure pad ceramic ultrasonic transducer according to a preferred embodiment 1 of the present invention, which includes a front cover assembly 1, a transducer assembly 2 and a back cover assembly 3, wherein the transducer assembly 2 is fixedly connected to a proximal end of a front cover plate 11 through the back cover assembly 3; the rear cover assembly 3 comprises a rear cover plate 31 and a connecting piece 32, and the rear cover plate 31 is fixed with the transducer assembly 2 and the front cover plate 11 into a whole through the connecting piece 32; an annular cylindrical insulating spacer 5 is arranged between the transducer assembly 2 and the connecting piece 32;
the energy conversion assembly 2 comprises piezoelectric ceramic devices 21, positive electrode sheet monomers 22 and negative electrode sheet monomers 23, wherein one positive electrode sheet monomer 22 and one negative electrode sheet monomer 23 are arranged among at least four piezoelectric ceramic devices 21 in a staggered mode;
the positive electrode sheet monomer 22 and the negative electrode sheet monomer 23 have the same structure, may be the same or different, and each include at least two metal electrode sheets 221 arranged in parallel at intervals, the inner sides of the metal electrode sheets 221 are connected through a first metal connecting rib 222, the outer side of one metal electrode sheet 221 near the end is provided with a second metal connecting rib 223 extending axially, the first metal connecting rib 222 and the second metal connecting rib 223 do not overlap in the circumferential direction of the metal electrode sheet 221, and preferably, the first metal connecting rib 222 and the second metal connecting rib 223 are arranged with the circle center of the circular metal electrode sheet 221 as the symmetric center; the metal electrode sheet 221 of the positive electrode sheet single body 22 and the metal electrode sheet 221 of the negative electrode sheet single body 23 are respectively staggered on two sides of the adjacent piezoelectric ceramic device 21, and the positive electrode lead 24 and the negative electrode lead 25 are respectively led out from the second metal connecting rib 223 of the positive electrode sheet single body 22 and the second metal connecting rib 223 of the negative electrode sheet single body 23.
The arrangement of the insulating isolation piece 5 can avoid the short circuit of the anode and the cathode of the transducer and ensure the assembly coaxiality of the pressure pad ceramic device.
The specific structure of the insulating spacer 5 may be a sleeve-shaped spacer tube, or may be an annular structure formed by winding a film of an insulating material such as polytetrafluoroethylene or polyimide film resistant to a temperature of 130 ℃ or higher around the outer peripheral surface of the distal end of the locking screw.
In a further preferred embodiment of this embodiment 1, the length of the insulating spacer 5 is not shorter than the axial thickness of the transducer assembly 2.
In this embodiment 1, the number of the piezoelectric ceramic devices 21 is specifically set to 4, the positive electrode sheet unit 22 and the negative electrode sheet unit 23 are both composed of two metal electrode sheets 221, a first metal connecting rib 222 and a second metal connecting rib 223, and the piezoelectric ceramic devices 21 and the metal electrode sheets 221 are both in an annular structure. The assembly relationship of the piezoelectric ceramic device 21 with the positive electrode sheet unit 22 and the negative electrode sheet unit 23 is the same as that of example 2.
The metal electrode piece 221 may be made of beryllium bronze alloy, phosphor copper alloy, snow copper alloy, red copper alloy, brass alloy, or the like, and may be processed by stamping, laser cutting, or the like. Because the metal electrode piece 221 and the pressure pad ceramic device are not ideally round when being processed and/or the edge of the inner diameter and the outer diameter of the metal electrode piece 221 can be uneven or burred when being processed, a local stress concentration point can be generated when the pressure pad ceramic device is attached and stressed, and the piezoelectric ceramic device 21 is damaged. Therefore, the outer diameter of the metal electrode piece 221 is not smaller than the outer diameter of the piezoelectric ceramic device 21, and the inner hole diameter of the metal electrode piece 221 is not larger than the inner diameter of the piezoelectric ceramic device 21, so that the inner hole or the outer diameter ridge of the metal electrode piece 221 is prevented from knocking the end face of the piezoelectric ceramic device 21.
In a further alternative embodiment of this embodiment 1, the front cover assembly 1 includes a front cover plate 11 having a connecting flange 111 at a distal end thereof, and the front cover plate 11 is a solid of revolution as a whole; the front cover plate 11 is fixed to the housing of the ultrasonic drive horn by a connecting flange 111. Furthermore, the connecting flange 111 may also be provided with a groove, a notch, or a boss, and the shape of the groove, the notch, or the boss may be circular arc, square, trapezoid, or the like. As an alternative to this embodiment, the front cover assembly 1 may further include a front cover plate 11 in the shape of a reducing sleeve, the total length of the front cover plate 11 is not more than 60mm, and the connecting flange 111 is not disposed on the front cover plate 11, but the front cover plate 11 is not more than 60mm in length, so that the shorter the front cover plate 11 is, the lower the resistance to ultrasonic transmission is, the easier the transmission of the sound waves to the front end surface is.
In a further alternative embodiment of this embodiment 1, the rear cover assembly 3 includes a rear cover plate 31 and a connecting member 32, and the rear cover plate 31 is fixed to the transducer assembly 2 and the front cover plate 11 by the connecting member 32.
In a further alternative embodiment of this embodiment 1, the connecting member 32 includes a locking screw 321 and an internally threaded hole formed in the proximal end of the front cover plate 11, and the locking screw 321 is fittingly connected in the proximal internally threaded hole 112 of the front cover plate 11 through the central holes of the rear cover plate 31, the piezoelectric ceramic device 21, the positive electrode sheet unit 22 and the negative electrode sheet unit 23.
In a further optional implementation manner of this embodiment 1, when the material density of the front cover plate 11 is not greater than the material density of the back cover plate 31, a gasket 4 is disposed between the front cover plate 11 and the transducer assembly 2, and the gasket 4 is conducted with the negative electrode sheet unit 23 of the transducer assembly 2 through a locking screw 321. The conduction mode of the locking screw 321 is not easy to generate local heating phenomenon in the contact area, and thus transducer failure caused by the local heating phenomenon can be avoided.
In the above embodiment with the gasket 4, when the pressure pad ceramic device is locked by rotating a screw or a nut during the assembly of the transducer, relative sliding can be generated due to friction force generated on the end faces, at this time, the gasket 4 and the front cover plate 11 generate relative sliding, the pressure pad ceramic device is not in contact with the front cover plate 11 and is relatively static with the gasket 4, and the damage to the piezoelectric ceramic end faces caused by relative sliding during the assembly is avoided.
In the embodiment without the gasket 4, the front cover plate 11 is made of a material having a small hardness, and the stress concentration can be relieved by the amount of deformation at the time of assembly. At this moment, the transducer assembly 2 is directly matched with the proximal end face of the front cover plate 11, the outer diameter of the proximal end face of the front cover plate 11 is preferably not less than the outer diameter of the piezoelectric ceramic, and the inner diameter of the proximal end face of the front cover plate 11 is not more than the inner hole diameter of the piezoelectric ceramic device 21, so that the inner hole or the edge of the outer diameter of the front cover plate 11 can not damage the end face of the piezoelectric ceramic device 21.
In a further alternative embodiment of this embodiment 1, the gasket 4 is a metal gasket with a thickness of 0.05-5 mm. The gasket 4 can adopt modes such as punching press, laser cutting to process, and the gasket 4 middle part is equipped with the hole for the assembly, and this aperture is not more than piezoceramics device 21's hole diameter, and the gasket external diameter is not less than piezoceramics device 21's external diameter, has just so guaranteed that the arris of 4 holes of gasket or external diameter can not collide with and cause the damage at piezoceramics device 21 terminal surface.
Example 2
In another embodiment 2 shown in fig. 10-14, a pressure pad ceramic ultrasonic transducer is provided, which is substantially identical to the solution of embodiment 1, except for the following points:
in the embodiment 2, the connecting member 32 includes a fastening nut 321 and a proximal screw 112 disposed at an end of the front cover plate 11, and the proximal screw 112 of the front cover plate 11 passes through the central holes of the piezoelectric ceramic device 21, the positive electrode sheet unit 22, the negative electrode sheet unit 23, and at least one rear cover plate 31 to be engaged with the fastening nut 321.
In this embodiment 2, the gasket is sleeved on the root of the proximal screw 112 of the front cover plate 11, and the gasket is compressed between the front cover plate 11 and the transducer assembly through the fastening nut 321.
One aspect of the present invention is that, in the present embodiment 2, the number of the piezoelectric ceramic devices 21 is specifically set to four, and the positive electrode sheet unit 22 and the negative electrode sheet unit 23 are each composed of two metal electrode sheets, a first metal connecting rib, and a second metal connecting rib. Referring to fig. 14, there is shown the assembly relationship of the piezoelectric ceramic device 21 with the positive electrode sheet unit 22 and the negative electrode sheet unit in the present embodiment 2: the positive electrode plate is closely attached to the positive electrode of the piezoelectric ceramic device 21, and the negative electrode plate is closely attached to the negative electrode of the piezoelectric ceramic device 21, as shown by the "+" and "-" marks in the figure.
Example 3
In another embodiment 3 shown in fig. 15-16, a pressure pad ceramic ultrasonic transducer is provided, which is substantially identical to the solution of embodiment 2, except for the following points:
the connecting piece comprises a near-end screw rod 112 arranged at the end part of the front cover plate 11 and an internal thread hole formed in the center of the rear cover plate 31, and the near-end screw rod 112 penetrates through the piezoelectric ceramic device, the single positive electrode plate and the single negative electrode plate and is connected with the internal thread hole of the rear cover plate 31 of the rear cover assembly 3 in a matching manner.
The above, only the utility model discloses a preferred embodiment is not right the utility model discloses do the restriction in any form, all basis the utility model discloses a technical essence makes any simple modification and equal change to above embodiment, all falls into within the protection scope of the utility model.
Claims (10)
1. A pressure pad ceramic ultrasonic transducer comprises a front cover assembly, a transducer assembly and a rear cover assembly, wherein the transducer assembly is fixedly connected to the near end of a front cover plate through the rear cover assembly; the rear cover assembly comprises a rear cover plate and a connecting piece, and the rear cover plate is fixed with the energy conversion assembly and the front cover plate into a whole through the connecting piece; the method is characterized in that:
an annular columnar insulating spacer is arranged between the energy conversion assembly and the connecting piece;
the energy conversion assembly comprises piezoelectric ceramic devices, a positive electrode plate monomer and a negative electrode plate monomer, wherein the positive electrode plate monomer and the negative electrode plate monomer are arranged among at least four piezoelectric ceramic devices in a staggered mode;
the positive electrode plate monomer and the negative electrode plate monomer respectively comprise at least two metal electrode plates which are arranged in parallel at intervals, the inner sides of the metal electrode plates are connected through a first metal connecting rib, the outer side of one metal electrode plate at the near end is provided with a second metal connecting rib which extends axially, and the first metal connecting rib and the second metal connecting rib are not overlapped in the circumferential direction of the metal electrode plates; the metal electrode plates of the positive electrode plate monomer and the metal electrode plates of the negative electrode plate monomer are respectively arranged on two sides of the adjacent piezoelectric ceramic devices in a staggered mode, and a positive wire and a negative wire are respectively led out from the second metal connecting rib of the positive electrode plate monomer and the second metal connecting rib of the negative electrode plate monomer.
2. The pressure pad ceramic ultrasonic transducer of claim 1, wherein: the front cover assembly comprises a front cover plate, the far end of the front cover plate is provided with a connecting flange, and the front cover plate is integrally of a revolving body structure; or the front cover assembly comprises a front cover plate in a reducing sleeve shape, and the total length of the front cover plate is not more than 60mm.
3. The pressure pad ceramic ultrasonic transducer of claim 2, wherein: the connecting piece comprises a locking screw and an internal threaded hole formed in the near end of the front cover plate, and the locking screw penetrates through center holes of the rear cover plate, the piezoelectric ceramic device, the positive electrode plate monomer and the negative electrode plate monomer and is connected in the internal threaded hole in a matched mode.
4. The pressure pad ceramic ultrasonic transducer of claim 3, wherein: the material density of front shroud is not more than back shroud material density, be provided with the gasket between front shroud and the transducer subassembly.
5. The pressure pad ceramic ultrasonic transducer of claim 4, wherein: the gasket is a metal gasket with the thickness of 0.05-5 mm.
6. The pressure pad ceramic ultrasonic transducer of claim 2, wherein: the connecting piece comprises a fastening nut and a near-end screw rod arranged at the end part of the front cover plate, and the near-end screw rod penetrates through the piezoelectric ceramic device, the positive electrode plate monomer, the negative electrode plate monomer and at least one center hole of the rear cover plate to be matched with the fastening nut.
7. The pressure pad ceramic ultrasonic transducer of claim 2, wherein: the connecting piece comprises a near-end screw rod arranged at the end part of the front cover plate and an internal thread hole formed in the center of the rear cover plate, and the near-end screw rod penetrates through the piezoelectric ceramic device, the positive electrode plate monomer and the negative electrode plate monomer and is connected with the internal thread hole of the rear cover plate in a matched mode.
8. The pressure pad ceramic ultrasonic transducer according to claim 6 or 7, wherein: the root of the near-end screw rod of the front cover plate is also sleeved with a gasket, and the gasket is compressed between the front cover plate and the energy conversion assembly through a fastening nut or a rear cover plate.
9. The pressure pad ceramic ultrasonic transducer of claim 8, wherein: the gasket is a metal gasket with the thickness of 0.05-5 mm.
10. The pressure pad ceramic ultrasonic transducer of any one of claims 1 to 7, wherein: the length of the insulating spacer is not shorter than the axial thickness of the transducer assembly.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222359386.8U CN218282508U (en) | 2022-09-06 | 2022-09-06 | Pressure pad ceramic ultrasonic transducer |
| PCT/CN2023/117027 WO2024051693A1 (en) | 2022-09-06 | 2023-09-05 | Piezoelectric ceramic ultrasonic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222359386.8U CN218282508U (en) | 2022-09-06 | 2022-09-06 | Pressure pad ceramic ultrasonic transducer |
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| Publication Number | Publication Date |
|---|---|
| CN218282508U true CN218282508U (en) | 2023-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222359386.8U Active CN218282508U (en) | 2022-09-06 | 2022-09-06 | Pressure pad ceramic ultrasonic transducer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN218282508U (en) |
| WO (1) | WO2024051693A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024051693A1 (en) * | 2022-09-06 | 2024-03-14 | 桐惠(杭州)医疗科技有限公司 | Piezoelectric ceramic ultrasonic transducer |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777506B (en) * | 2009-12-29 | 2012-06-27 | 天津大学 | Complex frequency sandwich structure ultrasonic transducer |
| CN203292048U (en) * | 2013-05-31 | 2013-11-20 | 桂林市啄木鸟医疗器械有限公司 | Transducer |
| CN204194261U (en) * | 2014-10-29 | 2015-03-11 | 武汉浩宏科技有限公司 | A kind of protection against electric shock ultrasonic transducer |
| CN204656899U (en) * | 2015-04-20 | 2015-09-23 | 无锡德众超声技术有限公司 | A kind of ultrasonic transducer |
| CN111495722B (en) * | 2019-01-30 | 2021-05-07 | 成都科汇模具有限公司 | Medical ultrasonic knife transducer |
| CN218282508U (en) * | 2022-09-06 | 2023-01-13 | 桐惠(杭州)医疗科技有限公司 | Pressure pad ceramic ultrasonic transducer |
-
2022
- 2022-09-06 CN CN202222359386.8U patent/CN218282508U/en active Active
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- 2023-09-05 WO PCT/CN2023/117027 patent/WO2024051693A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024051693A1 (en) * | 2022-09-06 | 2024-03-14 | 桐惠(杭州)医疗科技有限公司 | Piezoelectric ceramic ultrasonic transducer |
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| Publication number | Publication date |
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| WO2024051693A1 (en) | 2024-03-14 |
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