CN109877028B - Pulsating heat pipe heat dissipation type high-power ultrasonic transducer - Google Patents
Pulsating heat pipe heat dissipation type high-power ultrasonic transducer Download PDFInfo
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- CN109877028B CN109877028B CN201910243612.6A CN201910243612A CN109877028B CN 109877028 B CN109877028 B CN 109877028B CN 201910243612 A CN201910243612 A CN 201910243612A CN 109877028 B CN109877028 B CN 109877028B
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 25
- 239000000919 ceramic Substances 0.000 claims abstract description 31
- 238000001704 evaporation Methods 0.000 claims description 17
- 238000009833 condensation Methods 0.000 claims description 13
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- 230000005494 condensation Effects 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 2
- 239000012153 distilled water Substances 0.000 claims description 2
- 238000002604 ultrasonography Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000020169 heat generation Effects 0.000 claims 1
- 238000012546 transfer Methods 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 8
- 230000000149 penetrating effect Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
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- 238000001035 drying Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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- 230000010349 pulsation Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
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Abstract
The utility model discloses a pulsating heat pipe heat dissipation type high-power ultrasonic transducer, which relates to the technical field of ultrasonic transducers and comprises a piezoelectric ultrasonic transducer and a pulsating heat pipe heat dissipation device, wherein the piezoelectric ultrasonic transducer comprises a stress bolt, a rear cover plate, a piezoelectric ceramic element and a front cover plate, and a series of holes are penetrated in the radial direction; the rear cover plate is cylindrical, the front cover plate is conical, and the front cover plate, the piezoelectric ceramic element and the rear cover plate are tightly connected through the stress bolts; the pulsating heat pipe heat dissipation device is organically coupled in the piezoelectric ultrasonic transducer. The utility model is formed by organically coupling the traditional piezoelectric ultrasonic transducer with the pulsating heat pipe on the basis of the mechanical structure of the traditional piezoelectric ultrasonic transducer without affecting the performance of the transducer. The heat generated in the high-power piezoelectric ultrasonic transducer during working is taken away by utilizing the efficient heat transfer characteristic of the pulsating heat pipe, so that the high-efficiency and safe operation of the transducer in a normal temperature range is ensured, and the service life of the piezoelectric ultrasonic transducer can be prolonged.
Description
Technical Field
The utility model relates to the technical field of ultrasonic transducers, in particular to a pulsating heat pipe heat dissipation type high-power ultrasonic transducer.
Background
In power ultrasound technology applications, stability of transducer performance is of paramount importance, and has been highly appreciated by the industry. Piezoelectric ultrasonic transducers are core devices for energy conversion of an ultrasonic vibration system, and the temperature has a remarkable influence on the performance of the ultrasonic vibration system. Under the high-power working state, heat is generated due to power loss caused by impedance mismatch between the transducer and a power supply and dielectric loss of the piezoelectric ceramic, and the piezoelectric ceramic is an insulating material, so that the piezoelectric ceramic has poor heat conducting property, the center of the piezoelectric ultrasonic transducer is seriously heated, the piezoelectric ceramic plate of the transducer is depolarized due to overhigh temperature, the performance of the transducer is rapidly reduced, and a vibration system is collapsed. For a high-power piezoelectric ultrasonic transducer, in order to control the working temperature of the transducer and ensure the stability of the working performance of the transducer, an effective way for implementing heat dissipation and cooling on the high-power piezoelectric ultrasonic transducer is needed to be sought.
The patent of the utility model is found in the prior art by searching the literature, and the application number is CN200810163538.9, and the patent is named as an ultrasonic transducer cooling system, and discloses a scheme for cooling an ultrasonic transducer by utilizing a refrigerating system, so that the ultrasonic transducer can work efficiently in a corresponding temperature range. The cooling system adopts a vapor compression refrigeration principle, and forms refrigeration cycle through compression, condensation, throttling and evaporation processes of refrigerant, so that the refrigerant continuously takes away heat of an ultrasonic transducer, the cooling system is complex, power equipment is required to be added, the investment cost is increased, and the practical application and popularization are not facilitated; the utility model discloses an ultrasonic transducer cooled by a heat pipe, which adopts a mode of bonding the heat pipe and the exterior of the transducer to control the working temperature, so that the ultrasonic transducer can work efficiently. However, due to the limitation of the heat pipe, gravity is needed to realize the reflux of the working medium of the heat pipe, so that the working posture of the ultrasonic transducer is limited; the utility model patent of China with the application number of CN200620133985.6 and the name of ultrasonic transducer discloses a multi-vibrator ultrasonic transducer which is formed by arranging in an array mode, wherein the transducer adopts a T-shaped tube to realize the cooling of multi-path gas to vibrator by vibrator so as to achieve the effect of rapid cooling, but the gas cooling mode has smaller heat exchange area, so that the heat dissipation requirement of the transducer on high density and stability cannot be met. The above schemes are all to realize external heat dissipation to the piezoelectric ultrasonic transducer, and although the external temperature of the transducer can be effectively reduced, the internal temperature of the piezoelectric ultrasonic transducer is still higher, and the working performance of the piezoelectric ultrasonic transducer is still greatly affected due to the fact that larger temperature gradients exist inside and outside the piezoelectric ultrasonic transducer.
The pulsating heat pipe is a novel heat pipe which appears in nineties of the last century, the heat transfer performance of the pulsating heat pipe is basically not influenced by conditions such as acceleration, centrifugal force, electric field and the like, and compared with the traditional heat pipe, the pulsating heat pipe has the outstanding advantages of small volume, no capillary wick, simple structure, reliable operation, difficult drying, low cost and the like. Is the main heat dissipation device with high heat flux in the future.
Therefore, those skilled in the art are dedicated to develop a pulsating heat pipe heat dissipation type high-power ultrasonic transducer, which is formed by organically coupling with a pulsating heat pipe based on the mechanical structure of a conventional piezoelectric ultrasonic transducer without affecting the performance of the transducer. The heat generated in the high-power piezoelectric ultrasonic transducer during working is taken away by utilizing the efficient heat transfer characteristic of the pulsating heat pipe, so that the high-efficiency and safe operation of the transducer in a normal temperature range is ensured, and the service life of the piezoelectric ultrasonic transducer can be prolonged.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present utility model is to solve the technical problem of how to cool and dissipate heat of the high-power piezoelectric ultrasonic transducer, so as to effectively ensure the high-efficiency and safe operation of the high-power piezoelectric ultrasonic transducer in the normal temperature range.
In order to achieve the above purpose, the utility model provides a pulsating heat pipe heat dissipation type high-power ultrasonic transducer, which comprises a piezoelectric ultrasonic transducer and a pulsating heat pipe heat dissipation device, wherein the piezoelectric ultrasonic transducer comprises a stress bolt, a rear cover plate, a piezoelectric ceramic element and a front cover plate, and a series of holes are penetrated along the radial direction; the rear cover plate is cylindrical, the front cover plate is conical, and the front cover plate, the piezoelectric ceramic element and the rear cover plate are tightly connected through the stress bolts; the pulsating heat pipe radiating device is organically coupled in the piezoelectric ultrasonic transducer; the positive electrode surfaces of two adjacent piezoelectric ceramic elements are opposite, and a thin copper sheet is clamped between the two positive electrode surfaces as a positive electrode lead end of the piezoelectric ultrasonic transducer; the negative electrode surface of one of the piezoelectric ceramic elements is opposite to the upper end surface of the front cover plate, and a thin copper sheet is clamped in the negative electrode surface of the piezoelectric ceramic element and is used as a first negative electrode lead end of the piezoelectric ultrasonic transducer; the negative electrode surface of the other piezoelectric ceramic element is opposite to the lower end surface of the rear cover plate, and a thin copper sheet is also clamped in the middle of the negative electrode surface of the other piezoelectric ceramic element to serve as a second negative electrode lead end of the piezoelectric ultrasonic transducer; the positive electrode lead is connected with the positive electrode lead end of the piezoelectric ultrasonic transducer; and a negative electrode lead is connected with the first negative electrode lead end and the second negative electrode lead end of the piezoelectric ultrasonic transducer at the same time.
Further, the pulsating heat pipe heat dissipation device comprises a pulsating heat pipe, a plurality of groups of heat conduction fins and a liquid filling pipe; the pulsating heat pipe is arranged in a serpentine shape, the pipe wall is filled with working medium and is divided into an evaporation section, a heat insulation section and a condensation section, the evaporation section is communicated with the condensation section through the heat insulation section, and the evaporation section is in a cylindrical shape and is organically coupled in the front cover plate; the plurality of groups of heat conduction fins are arranged on the outer side of the condensing section and are tightly combined with the outer side of the condensing section; the liquid filling pipe is used for vacuumizing the pulsating heat pipe and filling working medium, and is positioned at the top of the condensation section.
Further, the series of holes penetrating in the radial direction are positioned at the pitch surface position of the piezoelectric ultrasonic transducer, and the pitch surface position is positioned on one of the front cover plate, the rear cover plate and the central thick electrode of the piezoelectric ultrasonic transducer.
Further, the front cover plate is made of an aluminum alloy, and the rear cover plate is made of steel.
Further, the piezoelectric ceramic elements are ring-shaped, have even number and are made of PZT piezoelectric ceramic materials.
Further, the plurality of groups of heat conduction fins are in a ring shape, are tightly combined with the outer surface of the condensing section and are sleeved outside the piezoelectric ultrasonic transducer.
Further, the working medium is one of methanol, acetone, freon and distilled water, the pipe diameter of the pulsating heat pipe is 0.5-3mm, the number of elbows is 10-80, the liquid filling rate is 50-70%, and the inclination angle is 70-90 degrees, and is determined by the heat generating power of the piezoelectric ultrasonic transducer during working.
Further, the surface of the evaporation section is organically coupled with the inner surface along the upper hole of the front cover plate, and the contact surface is uniformly coated with heat-conducting silicone grease.
Further, the pulsating heat pipe and the plurality of groups of heat conducting fins are all formed by processing metal with strong heat conducting performance.
Further, the metal is one or more of copper, aluminum, copper alloy and aluminum alloy.
The pulsating heat pipe heat dissipation type high-power ultrasonic transducer of the utility model utilizes the high-density heat conduction characteristic of the pulsating heat pipe element to cool and dissipate heat of the high-power piezoelectric ultrasonic transducer, can effectively ensure the high-efficiency and safe work of the high-power piezoelectric ultrasonic transducer in a normal temperature range, mainly plays a role in protecting the core element piezoelectric ceramic plate of the high-power piezoelectric ultrasonic transducer, solves the technical problem of high working temperature of the existing high-power piezoelectric ultrasonic transducer, and has very wide application prospect.
The conception, specific structure, and technical effects of the present utility model will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present utility model.
Drawings
FIG. 1 is a schematic three-dimensional structure of a preferred embodiment of the present utility model;
FIG. 2 is an axial cross-sectional view of a preferred embodiment of the present utility model;
fig. 3 is a cross-sectional view of a preferred embodiment of the present utility model.
The device comprises a 1-stress bolt, a 2-rear cover plate, a 3-piezoelectric ceramic element, a 4-front cover plate, a 5-negative electrode lead, a 6-positive electrode lead, a 7-pulsating heat pipe, 8-heat conduction fins, a 9-liquid filling pipe, a 10-condensation section, an 11-heat insulation section and a 12-evaporation section.
Detailed Description
The following description of the preferred embodiments of the present utility model refers to the accompanying drawings, which make the technical contents thereof more clear and easy to understand. The present utility model may be embodied in many different forms of embodiments and the scope of the present utility model is not limited to only the embodiments described herein.
In the drawings, like structural elements are referred to by like reference numerals and components having similar structure or function are referred to by like reference numerals. The dimensions and thickness of each component shown in the drawings are arbitrarily shown, and the present utility model is not limited to the dimensions and thickness of each component. The thickness of the components is exaggerated in some places in the drawings for clarity of illustration.
Embodiment one:
as shown in fig. 1 and 2, a preferred embodiment of the present utility model includes a stress bolt 1, a cylindrical back cover plate 2, a piezoceramic element 3, a conical front cover plate 4 perforated with a series of holes in the radial direction, a negative electrode lead 5, a positive electrode lead 6, a pulsating heat pipe 7, a plurality of sets of heat conduction fins 8, a liquid charging pipe 9, a condensing section 10, an insulating section 11, and an evaporating section 12.
The cylindrical back cover plate 2, the piezoelectric ceramic element 3 and the conical front cover plate 4 penetrating a series of holes along the radial direction are tightly combined through the stress bolts 1, the piezoelectric ultrasonic transducer is manufactured into a cylindrical shape by processing, the positive electrode surfaces of two adjacent piezoelectric ceramic elements 3 are opposite, and a thin copper sheet is clamped between the two piezoelectric ceramic elements as a positive electrode lead terminal of the piezoelectric ultrasonic transducer; the negative electrode surface of the piezoelectric ceramic element 3 is respectively opposite to the upper end surface of the conical front cover plate 4 and the lower end surface of the cylindrical rear cover plate 2 which penetrate a series of holes along the radial direction, and a thin copper sheet is clamped between the upper end surface and the lower end surface of the conical front cover plate 4 as a negative electrode lead end of the piezoelectric ultrasonic transducer; the negative electrode lead 5 and the positive electrode lead 6 are respectively connected with the negative electrode lead end and the positive electrode lead end of the piezoelectric ultrasonic transducer.
The pulsating heat pipe 7, a plurality of groups of heat conduction fins 8 and liquid filling pipes 9 form a pulsating heat pipe heat dissipation system, as shown in fig. 2, wherein the pulsating heat pipe 7 consists of pipe walls and working media and can be divided into a condensation section 10, a heat insulation section 11 and an evaporation section 12; the pulsating heat pipe 7 is in a circular tube shape; the condensing section 10 is communicated with the evaporating section 12 through the heat insulation section 11; the plurality of groups of heat conduction fins 8 are tightly combined with the outer surface of the condensation section 10, and the plurality of groups of heat conduction fins 8 have the functions of increasing the outer surface area of the condensation section 10 and improving the heat dissipation capacity of the pulsating heat pipe heat dissipation system; the liquid filling pipe 9 is used for vacuumizing the pulsating heat pipe and filling working medium, is positioned at the top of the condensation section 10, and the evaporation section 12 is organically coupled into the conical front cover plate 4 penetrating a series of holes along the radial direction.
As shown in fig. 3, the working medium forms a plurality of liquid columns and air plugs with different lengths in the serpentine circuit of the pulsating heat pipe 7. Under the action of heat, working medium flows in pulsation between the condensing section 10 and the evaporating section 12 through the heat insulation section 11. The surface of the evaporation section 12 is organically coupled with the inner surface of the holes in the conical front cover plate 4 penetrating a series of holes along the radial direction, and the contact surfaces are uniformly coated with heat conduction silicone grease so as to increase the heat conduction coefficient between the contact surfaces, so that the heat generated during the working of the piezoelectric ultrasonic transducer is quickly transferred to the evaporation section 12, and the heat is transferred to the condensation section 10 through the heat insulation section 11 by the pulsating flow of working medium, so that the heat dissipation purpose is achieved.
The piezoelectric ultrasonic transducer is radially perforated with a series of holes of a conical front cover plate 4 at the pitch location of the piezoelectric ultrasonic transducer, which may be located on the front cover plate 4, rear cover plate 2 or center thick electrode of the piezoelectric ultrasonic transducer.
The heat transfer equivalent factors of the pulsating heat pipe 7, such as pipe diameter (0.5-3 mm) inequality, elbow number (10-80), liquid filling rate (50-70% is optimal), inclination angle (70-90 degrees is optimal), working medium and the like, are determined by the power, namely the heat load, of the composite piezoelectric ultrasonic transducer.
In this embodiment, the cylindrical back cover plate 2 is made of steel, the piezoelectric ceramic element 3 is made of PZT4 piezoelectric ceramic material, the conical front cover plate 4 penetrating a series of holes along the radial direction is made of high-strength aluminum alloy, and the pulsating heat pipe 7 and the plurality of groups of heat conducting fins 8 are made of metal with strong heat conducting performance, such as copper, aluminum, steel and other metals or alloys.
Embodiment two:
on the basis of the first embodiment, the pulsating heat pipe 7 in the second embodiment is in a horn shape.
The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model without requiring creative effort by one of ordinary skill in the art. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (5)
1. The heat dissipation type high-power ultrasonic transducer of the pulsating heat pipe is characterized by comprising a piezoelectric ultrasonic transducer and a heat dissipation device of the pulsating heat pipe, wherein the piezoelectric ultrasonic transducer comprises a stress bolt, a rear cover plate, a piezoelectric ceramic element and a front cover plate, and a series of holes are penetrated in the radial direction; the rear cover plate is cylindrical, the front cover plate is conical, and the front cover plate, the piezoelectric ceramic element and the rear cover plate are tightly connected through the stress bolts; the pulsating heat pipe radiating device is organically coupled in the piezoelectric ultrasonic transducer; the positive electrode surfaces of two adjacent piezoelectric ceramic elements are opposite, and a thin copper sheet is clamped between the two positive electrode surfaces as a positive electrode lead end of the piezoelectric ultrasonic transducer; the negative electrode surface of one of the piezoelectric ceramic elements is opposite to the upper end surface of the front cover plate, and a thin copper sheet is clamped in the negative electrode surface of the piezoelectric ceramic element and is used as a first negative electrode lead end of the piezoelectric ultrasonic transducer; the negative electrode surface of the other piezoelectric ceramic element is opposite to the lower end surface of the rear cover plate, and a thin copper sheet is also clamped in the middle of the negative electrode surface of the other piezoelectric ceramic element to serve as a second negative electrode lead end of the piezoelectric ultrasonic transducer; the positive electrode lead is connected with the positive electrode lead end of the piezoelectric ultrasonic transducer; the negative electrode lead is connected with the first negative electrode lead end and the second negative electrode lead end of the piezoelectric ultrasonic transducer at the same time; the pulsating heat pipe radiating device comprises a pulsating heat pipe, a plurality of groups of heat conducting fins and a liquid filling pipe; the pulsating heat pipe is arranged in a serpentine shape, the pipe wall is filled with working medium and is divided into an evaporation section, a heat insulation section and a condensation section, the evaporation section is communicated with the condensation section through the heat insulation section, and the evaporation section is in a cylindrical shape and is organically coupled in the front cover plate; the plurality of groups of heat conduction fins are arranged on the outer side of the condensing section and are tightly combined with the outer side of the condensing section; the liquid filling pipe is used for vacuumizing the pulsating heat pipe and filling working medium and is positioned at the top of the condensation section; the radial through holes are positioned at the pitch surface position of the piezoelectric ultrasonic transducer, and the pitch surface position is positioned on one of the front cover plate and the rear cover plate of the piezoelectric ultrasonic transducer; the piezoelectric ceramic elements are in a ring shape, the number of the piezoelectric ceramic elements is even, and the piezoelectric ceramic elements are made of PZT piezoelectric ceramic materials; the plurality of groups of heat conduction fins are in a ring shape, are tightly combined with the outer surface of the condensing section and are sleeved outside the piezoelectric ultrasonic transducer.
2. The pulsating heat pipe heat dissipation type high power ultrasound transducer of claim 1, wherein the front cover plate is made of an aluminum alloy and the rear cover plate is made of steel.
3. The heat dissipation type high-power ultrasonic transducer of a pulsating heat pipe according to claim 1, wherein the working medium is one of methanol, acetone, freon and distilled water, the pipe diameter of the pulsating heat pipe is 0.5-3mm, the number of bends is 10-80, the liquid filling rate is 50-70%, and the inclination angle is 70-90 degrees, and is determined by the heat generation power of the piezoelectric ultrasonic transducer during working.
4. The heat dissipation type high power ultrasonic transducer of a pulsating heat pipe as claimed in claim 1, wherein the surface of the evaporation section is organically coupled with the inner surface along the upper hole of the front cover plate, and the contact surface is uniformly coated with heat conductive silicone grease.
5. The heat dissipation type high-power ultrasonic transducer of claim 1, wherein the pulsating heat pipe and the plurality of groups of heat conduction fins are processed by one or more of copper, aluminum, copper alloy and aluminum alloy.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910243612.6A CN109877028B (en) | 2019-03-28 | 2019-03-28 | Pulsating heat pipe heat dissipation type high-power ultrasonic transducer |
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| CN201910243612.6A CN109877028B (en) | 2019-03-28 | 2019-03-28 | Pulsating heat pipe heat dissipation type high-power ultrasonic transducer |
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| CN109877028B true CN109877028B (en) | 2023-12-19 |
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| CN110479687B (en) * | 2019-08-01 | 2022-04-15 | 合肥国轩高科动力能源有限公司 | Ultrasonic cleaning device for power battery aluminum shell |
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| CN202582301U (en) * | 2012-04-01 | 2012-12-05 | 大连海事大学 | Pulsating heat pipe heat-transfer system sleeved with electronic control piezoelectric ceramic block |
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| CN108176574A (en) * | 2017-12-19 | 2018-06-19 | 天津工业大学 | A kind of more amplitude piezoelectric ultrasonic transducers of series composite structure double frequency |
| CA3053911A1 (en) * | 2017-02-17 | 2018-08-23 | Southwire Company, Llc | Ultrasonic grain refining and degassing procedures and systems for metal casting including enhanced vibrational coupling |
| WO2019026964A1 (en) * | 2017-08-04 | 2019-02-07 | キヤノン株式会社 | Piezoelectric material, piezoelectric element, and electronic apparatus |
| CN209935164U (en) * | 2019-03-28 | 2020-01-14 | 浙江师范大学 | Pulsating heat pipe heat dissipation type high-power ultrasonic transducer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11035619B2 (en) * | 2016-12-09 | 2021-06-15 | Taiwan Semiconductor Manufacturing Co., Ltd. | Drainage for temperature and humidity controlling system |
| US20180345046A1 (en) * | 2017-05-30 | 2018-12-06 | David A. Gallup | Catheter and method for use |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357455A (en) * | 2011-08-08 | 2012-02-22 | 上海交通大学 | High-power ultrasonic transducer with heat pipe cooling device |
| CN202582301U (en) * | 2012-04-01 | 2012-12-05 | 大连海事大学 | Pulsating heat pipe heat-transfer system sleeved with electronic control piezoelectric ceramic block |
| CN206269643U (en) * | 2016-11-11 | 2017-06-20 | 山东亿诺赛欧电子科技有限公司 | Double ultrasonic wave heat-pipe radiating apparatus |
| CA3053911A1 (en) * | 2017-02-17 | 2018-08-23 | Southwire Company, Llc | Ultrasonic grain refining and degassing procedures and systems for metal casting including enhanced vibrational coupling |
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