CN102357455B - High-power ultrasonic transducer with heat pipe cooling device - Google Patents
High-power ultrasonic transducer with heat pipe cooling device Download PDFInfo
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- CN102357455B CN102357455B CN 201110226180 CN201110226180A CN102357455B CN 102357455 B CN102357455 B CN 102357455B CN 201110226180 CN201110226180 CN 201110226180 CN 201110226180 A CN201110226180 A CN 201110226180A CN 102357455 B CN102357455 B CN 102357455B
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Abstract
The invention discloses a high-power ultrasonic transducer with a heat pipe cooling device, and belongs to the technical field of application of ultrasonic transducers and heat pipes. The high-power ultrasonic transducer comprises an ultrasonic radiation head, a piezoelectric ceramic element, a rear cover plate, fastening bolts, a positive electrode lead, a negative electrode lead, an evaporation zone, an intermediate zone, a condensation zone, a liquid guiding core and heat conducting fins; the cylindrical ultrasonic transducer is formed by tightly connecting and machining the ultrasonic radiation head, the ceramic element and the rear cover plate through the fastening bolts; and a heat pipe cooling system consists of the evaporation zone, the intermediate zone, the condensation zone, the liquid guiding core and the heat conducting fins. The high-power ultrasonic transducer is cooled and radiated by using high heat conducting property of a heat pipe element, so that efficient operation of the high-power ultrasonic transducer in a normal temperature range can be effectively ensured, and the service life of the ultrasonic transducer is prolonged; and the high-power ultrasonic transducer is simple in structure and convenient to machine, and has strong adaptability and operability.
Description
Technical field
The present invention relates to large-power supersonic transducer, relate in particular to a kind of large-power supersonic transducer with heat pipe cooling device, belong to ultrasonic transducer and heat pipe applied technical field.
Background technology
Ultrasonic transducer because eddy current produces heat, raises the ultrasound transducer apparatus temperature in electric energy and acoustic energy transfer process, might cause the transducer performance decay or can't work for a long time and can not satisfy actual operation requirements.The small-power ultrasonic transducer because heating power is relatively less, does not need to establish special-purpose cooling system usually; But for large-power supersonic transducer, for example power is at the ultrasonic transducer more than 100 watts, because of heating power larger, if can not effectively carry out cooling when its work, the transducer temperature will reach higher temperature, not only cause the transducer operating efficiency to descend very fast, but also will damage core parts in transducer---piezoelectric chip.
Find through the literature search to prior art, No. CN200810163538.9, Chinese patent application, name is called " cooling system of supersonic transducer ", disclose that a kind of to utilize refrigeration system that ultrasonic transducer is carried out cooling, make ultrasonic transducer can be in the temperature range of regulation efficient operation.This cooling system adopts the steam compression type refrigeration principle, by compression, condensation, throttling and the evaporation process of cold-producing medium, forms kind of refrigeration cycle, cold-producing medium is constantly taken away the heat of ultrasonic transducer inner chamber, the cooling system more complicated, and investment is also higher, is unfavorable for actual popularization; No. CN200620133985.6, China's utility model, name is called " ultrasonic transducer ", the ultrasonic transducer that a kind of many oscillators form with array format is disclosed, this transducer adopts the T-shape tube multipath gas to carry out respectively cooling to each oscillator, reach the effect of rapid cooling, but this direct gas cooled mode because heat exchange area is less, therefore needs the refrigerating gas of lower temperature just can reach transducer heat radiation requirement.
Therefore, those skilled in the art is devoted to develop a kind of large-power supersonic transducer with efficient cooling system.
Summary of the invention
Because the defects of prior art; technical problem to be solved by this invention is to provide a kind of large-power supersonic transducer with efficient cooling system; under the prerequisite that does not affect transducer performance; take the frame for movement of ultrasonic transducer as the basis; the heat that produces when utilizing the heat-transfer character of hot tube high-efficiency that large-power supersonic transducer is worked is taken away; guarantee transducer safe and highly efficient operation in normal temperature range, and extend the ultrasonic transducer life-span.
For achieving the above object, the invention provides a kind of large-power supersonic transducer with heat pipe cooling device, comprise: the ultrasonic transducer of cylindrical shape, described ultrasonic transducer comprises Ultrasonic Radiation head, two piezo ceramic elements and back shroud, by fastening bolt, described Ultrasonic Radiation head, described piezo ceramic element and the back shroud of being connected is closely connected to process; Wherein, the positive pole-face of two adjacent described piezo ceramic elements is relative, and the centre accompanies scale copper, as the positive wire end of described ultrasonic transducer; The negative pole face of a described piezo ceramic element is relative with the lower surface of described Ultrasonic Radiation head, and the centre accompanies scale copper as the first negative wire end of described ultrasonic transducer; The negative pole face of the described piezo ceramic element of another piece is relative with the upper surface of described back shroud, and the centre also accompanies scale copper as the second negative wire end of described ultrasonic transducer; The positive electrode lead-in wire is connected with the described positive wire end of described ultrasonic transducer; The negative electrode lead-in wire is connected simultaneously with the described first and second negative wire ends of described ultrasonic transducer; Described heat pipe cooling device is comprised of evaporator section, interlude, condensation segment, drain core and heat conduction fin, and described evaporator section is communicated with described condensation segment by described interlude; Wherein, described interlude has the gradient that makes progress of predetermined angular by described evaporator section to described condensation segment; Described drain core depends on the inner surface of described condensation segment, and described heat conduction fin is arranged at the outside of described condensation segment, and combines closely with the described outside; The cylindrical shape of described evaporator section of described heat pipe cooling device is within described ultrasonic transducer is arranged at described evaporator section.
Preferably, in large-power supersonic transducer of the present invention, the work working medium charging amount of described heat pipe cooling device is not more than the inner space volume sum of described evaporator section and described interlude simultaneously greater than the inner space volume of described evaporator section.
Preferably, in large-power supersonic transducer of the present invention, the inner surface of described interlude has a plurality of small " U " shape grooves along described gradient direction, " U " shape opening direction of wherein said " U " shape groove be described interlude inner surface normal direction and point to the center of described interlude.
Preferably, in large-power supersonic transducer of the present invention, the inner surface of described evaporator section contacts with the intimate of described Ultrasonic Radiation head and described back shroud respectively, and contact-making surface all scribbles heat-conducting silicone grease.
Preferably, in large-power supersonic transducer of the present invention, described Ultrasonic Radiation head is made by aluminium alloy, and described back shroud is formed from steel.
Preferably, in large-power supersonic transducer of the present invention, described piezo ceramic element is circular, adopts the PZT4 piezoceramic material to make.
Preferably, in large-power supersonic transducer of the present invention, described evaporator section, described interlude, described condensation segment and described heat conduction fin all adopt the strong metal of heat conductivility to process, and the operating temperature interval of the work working medium of described heat pipe cooling device is 20 ℃～100 ℃.Further, described metal is copper, aluminium, copper alloy or aluminium alloy.
Large-power supersonic transducer with heat pipe cooling device of the present invention utilizes the high thermal conduction characteristic of heat-pipe elements; large-power supersonic transducer is carried out cooling heat dissipation; can effectively guarantee large-power supersonic transducer efficient operation in normal temperature range; and to large-power supersonic transducer core parts---piezoelectric chip has certain protective effect; solve the high technical barrier of present large-power supersonic transducer operating temperature, will have good application prospect.
Be described further below with reference to the technique effect of accompanying drawing to design of the present invention, concrete structure and generation, to understand fully purpose of the present invention, feature and effect.
Description of drawings
Fig. 1 is the cutaway view of the large-power supersonic transducer structure with heat pipe cooling device of one embodiment of the present of invention;
Fig. 2 is A-A cutaway view embodiment illustrated in fig. 1;
Fig. 3 is the cross sectional representation of the interlude in embodiment illustrated in fig. 1.
The specific embodiment
As shown in Figure 1 and Figure 2, the present embodiment invention comprises Ultrasonic Radiation head 1, piezo ceramic element 2, back shroud 3, fastening bolt 4, positive electrode lead-in wire 5, negative electrode lead-in wire 6, evaporator section 7, interlude 8, condensation segment 9, drain core 10, heat conduction fin 11 and " U " shape groove 12.
Ultrasonic Radiation head 1, ceramic component 2 are connected with back shroud and are closely connected by fastening bolt 4, manufacture cylindrical ultrasonic transducer, the positive pole-face of adjacent two piezo ceramic elements 2 is relative, the centre accompanies scale copper as the positive wire end of ultrasonic transducer, the negative pole face of piezo ceramic element 2 is relative with the upper surface of the lower surface of Ultrasonic Radiation head 1 and back shroud 3 respectively, the centre accompanies scale copper as the negative wire end of ultrasonic transducer, and positive electrode lead-in wire 5, negative electrode lead-in wire 6 are connected with the positive and negative electrode lead end of ultrasonic transducer respectively.
Evaporator section 7, interlude 8, condensation segment 9, drain core 10 and heat conduction fin 11 form heat pipe cooling system, and evaporator section 7 is communicated with by interlude 8 and condensation segment 9, and interlude 8 has certain sloped of upstroke (gradient i＞0.1) by evaporator section 7 to condensation segment 9.Cross sectional representation referring to Fig. 3, the inner surface of interlude 8 has some small " U " shape groove 12 along gradient direction, the direction of " U " shape opening is the normal direction of interlude 8 inner surfaces and the center of pointing to interlude 8, and " U " shape groove 12 has the effect of dredging liquid.In figure, interlude 8 is circular tube shaped, and in practice, it also can for square tube type or other shapes, all can realize purpose of the present invention.
The work working medium charging amount of heat pipe cooling system should be greater than the inner space volume of evaporator section 7, simultaneously, and can not be greater than the inner space volume sum of evaporator section 7 and interlude 8.Drain core 10 depends on condensation segment 9 inner surfaces, condensate liquid is under the capillary pressure function of drain core 10, be back to interlude 8, and flow back into evaporator section 7 along " U " of interlude 8 inner surfaces shape microchannel, the effect of heat conduction fin 11 is to increase condensation segment 9 external surface areas, improves the heat-sinking capability of heat pipe cooling system.Evaporator section 7 is drum, its inner surface contacts with the intimate of Ultrasonic Radiation head 1 and back shroud 3 respectively, contact-making surface all scribbles heat-conducting silicone grease, to increase the thermal conductivity factor between contact-making surface, quantity of heat production when making ultrasonic transducer work is passed to evaporator section 7 fast, and by working media evaporation in evaporimeter 7, heat is passed to condensation segment 9, reach the heat radiation purpose.
In the present embodiment, Ultrasonic Radiation head 1 is made by high-intensity aluminium alloy, back shroud 3 is formed from steel, be circular piezo ceramic element 2 and adopt the PZT4 piezoceramic material, evaporator section 7, interlude 8, condensation segment 9 and heat conduction fin 11 all adopt the strong metal of heat conductivility to be processed into, metal or alloy such as copper, aluminium, the operating temperature interval of heat pipe work working medium is 20 ℃～100 ℃.
More than describe preferred embodiment of the present invention in detail.The ordinary skill that should be appreciated that this area need not creative work and just can design according to the present invention make many modifications and variations.Therefore, all technical staff in the art all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (7)
1. large-power supersonic transducer with heat pipe cooling device comprises:
The ultrasonic transducer of cylindrical shape, described ultrasonic transducer comprises Ultrasonic Radiation head, two piezo ceramic elements and back shroud, by fastening bolt, described Ultrasonic Radiation head, described piezo ceramic element and the back shroud of being connected is closely connected to process; Wherein, the positive pole-face of two adjacent described piezo ceramic elements is relative, and the centre accompanies scale copper, as the positive wire end of described ultrasonic transducer; The negative pole face of a described piezo ceramic element is relative with the lower surface of described Ultrasonic Radiation head, and the centre accompanies scale copper as the first negative wire end of described ultrasonic transducer; The negative pole face of the described piezo ceramic element of another piece is relative with the upper surface of described back shroud, and the centre also accompanies scale copper as the second negative wire end of described ultrasonic transducer; The positive electrode lead-in wire is connected with the described positive wire end of described ultrasonic transducer; The negative electrode lead-in wire is connected simultaneously with the described first and second negative wire ends of described ultrasonic transducer;
Described heat pipe cooling device is comprised of evaporator section, interlude, condensation segment, drain core and heat conduction fin, and described evaporator section is communicated with described condensation segment by described interlude; Wherein, described interlude has the gradient that makes progress of predetermined angular by described evaporator section to described condensation segment; Described drain core depends on the inner surface of described condensation segment, and described heat conduction fin is arranged at the outside of described condensation segment, and combines closely with the described outside;
The cylindrical shape of described evaporator section of described heat pipe cooling device is within described ultrasonic transducer is arranged at described evaporator section.
2. large-power supersonic transducer as claimed in claim 1, it is characterized in that, the work working medium charging amount of described heat pipe cooling device is not more than the inner space volume sum of described evaporator section and described interlude simultaneously greater than the inner space volume of described evaporator section.
3. large-power supersonic transducer as claimed in claim 1, it is characterized in that, the inner surface of described interlude has a plurality of small " U " shape grooves along described gradient direction, " U " shape opening direction of wherein said " U " shape groove be described interlude inner surface normal direction and point to the center of described interlude.
4. large-power supersonic transducer as claimed in claim 1, is characterized in that, the inner surface of described evaporator section contacts with the intimate of described Ultrasonic Radiation head and described back shroud respectively, and contact-making surface all scribbles heat-conducting silicone grease.
5. large-power supersonic transducer as claimed in claim 1, is characterized in that, described Ultrasonic Radiation head is made by aluminium alloy, and described back shroud is formed from steel.
6. large-power supersonic transducer as claimed in claim 1, is characterized in that, described piezo ceramic element is circular, adopts the PZT4 piezoceramic material to make.
7. large-power supersonic transducer as claimed in claim 1, it is characterized in that, described evaporator section, described interlude, described condensation segment and described heat conduction fin all adopt the strong metal of heat conductivility to process, and the operating temperature interval of the work working medium of described heat pipe cooling device is 20 ℃～100 ℃.
The metal that described heat conductivility is strong is copper, aluminium, copper alloy or aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110226180 CN102357455B (en) | 2011-08-08 | 2011-08-08 | High-power ultrasonic transducer with heat pipe cooling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110226180 CN102357455B (en) | 2011-08-08 | 2011-08-08 | High-power ultrasonic transducer with heat pipe cooling device |
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| Publication Number | Publication Date |
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| CN102357455A CN102357455A (en) | 2012-02-22 |
| CN102357455B true CN102357455B (en) | 2013-06-12 |
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| CN 201110226180 Expired - Fee Related CN102357455B (en) | 2011-08-08 | 2011-08-08 | High-power ultrasonic transducer with heat pipe cooling device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767067B (en) * | 2016-11-11 | 2019-06-07 | 山东大学 | Double ultrasonic wave heat-pipe radiating apparatus |
| CN108201658B (en) * | 2018-02-28 | 2024-02-13 | 谭本 | Cooling type ultrasonic treatment head |
| CN109877028B (en) * | 2019-03-28 | 2023-12-19 | 浙江师范大学 | Pulsating heat pipe heat dissipation type high-power ultrasonic transducer |
| 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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200970578Y (en) * | 2006-09-30 | 2007-11-07 | 中国科学院声学研究所 | Ultrasonic energy transducer |
| CN101441007A (en) * | 2008-12-29 | 2009-05-27 | 杭州电子科技大学 | Cooling system of supersonic transducer |
| HU228665B1 (en) * | 2009-12-03 | 2013-05-28 | Gea Egi Energiagazdalkodasi Zrt | Hybrid cooling system |
| CN201664476U (en) * | 2010-02-24 | 2010-12-08 | 北京汇福康医疗技术有限公司 | Focusing power ultrasonic energy converter for fat-reducing body-shaping machine |
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Granted publication date: 20130612 Termination date: 20200808 |