CN106059393B - A kind of hot rectifier of inverse piezoelectricity and the method for improving hot rectification efficiency - Google Patents
A kind of hot rectifier of inverse piezoelectricity and the method for improving hot rectification efficiency Download PDFInfo
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- CN106059393B CN106059393B CN201610576256.6A CN201610576256A CN106059393B CN 106059393 B CN106059393 B CN 106059393B CN 201610576256 A CN201610576256 A CN 201610576256A CN 106059393 B CN106059393 B CN 106059393B
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- hot
- rectifier
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- inverse
- hot arm
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
- H02N11/002—Generators
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N15/00—Thermoelectric devices without a junction of dissimilar materials; Thermomagnetic devices, e.g. using the Nernst-Ettingshausen effect
Abstract
The invention discloses a kind of hot rectifier of inverse piezoelectricity and the methods for improving hot rectification efficiency, including hot arm, DC power supply, conducting wire, variable resistance, switch, heat source, low-temperature receiver and copper electrode, DC power supply connects copper electrode by conducting wire, inverse piezoelectric effect occurs under electric field action for hot arm leads to the change of geometry, and then thermal resistance change and heat flow is caused to change, pass through voltage and realization hot-fluid is controlled to control.The hot rectifier of the present invention changes boundary scattering intensity of the hot-fluid in transmission process by inverse piezoelectric effect, can effectively control heat flow, improve hot rectification efficiency.
Description
Technical field
The present invention relates to a kind of hot rectifier of inverse piezoelectricity and the methods for improving hot rectification efficiency, belong to heat and mass technology neck
Domain.
Background technology
Hot rectifier be thermal diode, hot transistor, hot logic gate device, hot memory basic device, thermotransport,
Thermal control and information processing etc. all have potential application value.Hot rectifier can pass through element doping, geometry
Method controls the size of heat flow, realizes hot rectification.Current hot rectifier in use, can only realize fixed hot rectification
Efficiency can not be adjusted, significantly limit the application range of hot rectifier in real time according to demand.
Invention content
In view of the problems of prior art, the invention discloses a kind of hot rectifier of inverse piezoelectricity and improve hot whole
The method of the hot rectification efficiency of device is flowed, disclosed technical solution is to change the cross sectional shape of hot arm with inverse piezoelectric effect, so as to have
Effect ground changes the boundary scattering rate of hot-fluid, so as to control inverse piezoelectric effect by adjusting electric field strength, and then controls heat flow.
Specifically, the present invention is achieved through the following technical solutions：
A kind of hot rectifier, including hot arm, DC power supply, conducting wire, variable resistance, switch, heat source, low-temperature receiver and copper electrode.
DC power supply connects copper electrode by conducting wire, and hot arm leads to changing for geometry under electric field action since inverse piezoelectric effect occurs
Become, and then lead to thermal resistance change and the change of heat flow, therefore can hot-fluid control be realized by the adjusting of voltage.The present invention
Hot rectifier boundary scattering intensity of the hot-fluid in transmission process is changed by inverse piezoelectric effect, can effectively control hot-fluid
Amount, improves hot rectification efficiency.
Wherein, hot arm is made out of a piezoelectric material, and quartz crystal, lithium gallium oxide, lithium germanium oxide, germanic acid titanium, lithium tantalate belong to common
Piezoelectric material.Piezoelectric material generates inverse piezoelectric effect under forward voltage effect, and compression phenomena occurs.Make in backward voltage
Under, striction phenomenon occurs.
Wherein, DC power supply is connected by conducting wire, variable resistance, switch and copper electrode, and supply voltage is 0.1 ~ 3V.
The technical scheme is that：Using inverse piezoelectric effect, by applying voltage at hot arm both ends, hot arm is made to generate change
Shape causes hot-fluid boundary scattering rate to change, so as to which hot-fluid be made to change.Voltage is adjusted using variable resistance, control hot arm becomes
Shape amount improves the adaptability and efficiency of hot rectifier, it can be achieved that real-time control to hot-fluid.
On the basis of the above, the present invention is correspondingly disclosed a kind of method for improving hot rectifier rectification efficiency, using inverse
Piezoelectric effect changes hot arm thermal resistance, improves hot rectification efficiency.
Description of the drawings
Fig. 1 is the electrical block diagram of the hot rectifier of the present invention.
Specific embodiment
Refer to the attached drawing 1, it is shown that the circuit structure of hot rectifier of the invention, including heat source 1, hot arm 2, electrode 3, forward direction
DC power supply 4, reverse DC power supply 5, switch 6, variable resistance 7, low-temperature receiver 8.Heat source 1 absorbs heat release hot-fluid, and hot-fluid passes through
Hot arm 2 flows to low-temperature receiver 8 in the direction of the arrow, realizes the transmission of thermal signal.When positive power switch is closed, hot arm is in electric field masterpiece
With lower generation compressive deformation.When reverse power switch is closed, stretcher strain occurs for hot arm.Deformation leads to hot-fluid boundary scattering rate
Change, so as to change thermal resistance, heat flow changes.
Forward dc power supply 4 should pass through switch 6, variable resistance 7 with reverse 5 voltage of DC power supply in the range of 0.1 ~ 3v
And copper electrode 3 is connect with hot arm.Electric field is formed at hot arm both ends, there are electric polarities so as under the action of electric field force due to hot arm
It deforms.
Hot arm is made out of a piezoelectric material, and quartz crystal, lithium gallium oxide, lithium germanium oxide, germanic acid titanium, lithium tantalate belong to common piezoelectricity
Material.Under inverse piezoelectric effect, the size length and width dimensions variation of rectangular section should be greater than 0.1 micron.
Film resistor can be used in variable resistance, and resistance value is at 10K ~ 100K ohm.
DC power supply connection conducting wire used is copper or aluminum conducting wire, effectively to reduce power wastage.
The hot rectifier of inverse piezoelectricity of the present invention, when voltage forward direction is with reverse biasing, forward dc power supply 4 and reverse direct current
Power supply 5 is respectively that hot commutation system provides power, generates an external voltage, hot arm both ends is made to generate electric field, and inverse piezoelectricity occurs
Effect realizes hot rectification.
Claims (5)
1. a kind of hot rectifier of inverse piezoelectricity, it is characterised in that including hot arm, DC power supply, conducting wire, variable resistance, switch, heat source,
Copper electrode, hot arm material are made out of a piezoelectric material, and quartz crystal or lithium gallium oxide or lithium germanium oxide or lithium tantalate belong to common piezoelectricity
Material, type of thermal communication cross hot arm and flow to low-temperature receiver from heat source, and DC power supply is connected by conducting wire, variable resistance, switch and copper electrode, copper
Electrode is arranged on two corresponding sides of cube hot arm, and when positive power switch is closed, hot arm is acted in electric field force
Lower generation compressive deformation, when reverse power switch is closed, stretcher strain occurs for hot arm, and deformation causes hot-fluid boundary scattering rate to change
Become, so as to change thermal resistance, heat flow changes, thus can be realized by adjusting voltage direction and numerical value to heat flow
Real-time high-efficiency control.
2. a kind of hot rectifier of inverse piezoelectricity as described in claim 1, it is characterised in that：
Hot arm uses variable section structure, is formed by stacking by small bore cube and big section cube.
3. a kind of hot rectifier of inverse piezoelectricity as described in claim 1, it is characterised in that：
Copper electrode is applied in big section hot arm.
4. a kind of hot rectifier of inverse piezoelectricity as described in claim 1, it is characterised in that：
Direct current power source voltage is 0.1~3V.
A kind of 5. method for improving hot rectification rectification efficiency, it is characterised in that using inverse piezoelectric effect change hot arm geometry and
Thermal resistance adjusts voltage magnitude by variable resistance, changes voltage direction by switch, control hot arm deflection changes heat flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610576256.6A CN106059393B (en) | 2016-07-21 | 2016-07-21 | A kind of hot rectifier of inverse piezoelectricity and the method for improving hot rectification efficiency |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610576256.6A CN106059393B (en) | 2016-07-21 | 2016-07-21 | A kind of hot rectifier of inverse piezoelectricity and the method for improving hot rectification efficiency |
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| CN106059393A CN106059393A (en) | 2016-10-26 |
| CN106059393B true CN106059393B (en) | 2018-07-06 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH03230776A (en) * | 1990-02-01 | 1991-10-14 | Tsuyoshi Tanaka | Magnetic engine |
| WO2003023294A2 (en) * | 2001-09-06 | 2003-03-20 | Ophira, Inc. | Thermoelectric cooling system |
| CN1610139A (en) * | 2004-11-15 | 2005-04-27 | 东南大学 | Micro refrigerator and producing method thereof |
| US8309839B2 (en) * | 2004-04-30 | 2012-11-13 | GM Global Technology Operations LLC | Method of improving thermoelectric figure of merit of high efficiency thermoelectric materials |
| CN203674195U (en) * | 2013-07-01 | 2014-06-25 | 江苏大学 | Structure modification type graphene thermal rectification device |
| CN103954070A (en) * | 2014-04-15 | 2014-07-30 | 河南工业大学 | Thermoelectric refrigerating unit based on alternating magnetic field driving |
| CN104650814A (en) * | 2015-01-15 | 2015-05-27 | 北京大学 | Phase-change thermal rectifier and preparation method thereof |
| CN105444461A (en) * | 2015-11-25 | 2016-03-30 | 河南工业大学 | Thermoelectric refrigerating unit and method for improving refrigerating efficiency of thermoelectric refrigerating unit |
-
2016
- 2016-07-21 CN CN201610576256.6A patent/CN106059393B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03230776A (en) * | 1990-02-01 | 1991-10-14 | Tsuyoshi Tanaka | Magnetic engine |
| WO2003023294A2 (en) * | 2001-09-06 | 2003-03-20 | Ophira, Inc. | Thermoelectric cooling system |
| US8309839B2 (en) * | 2004-04-30 | 2012-11-13 | GM Global Technology Operations LLC | Method of improving thermoelectric figure of merit of high efficiency thermoelectric materials |
| CN1610139A (en) * | 2004-11-15 | 2005-04-27 | 东南大学 | Micro refrigerator and producing method thereof |
| CN203674195U (en) * | 2013-07-01 | 2014-06-25 | 江苏大学 | Structure modification type graphene thermal rectification device |
| CN103954070A (en) * | 2014-04-15 | 2014-07-30 | 河南工业大学 | Thermoelectric refrigerating unit based on alternating magnetic field driving |
| CN104650814A (en) * | 2015-01-15 | 2015-05-27 | 北京大学 | Phase-change thermal rectifier and preparation method thereof |
| CN105444461A (en) * | 2015-11-25 | 2016-03-30 | 河南工业大学 | Thermoelectric refrigerating unit and method for improving refrigerating efficiency of thermoelectric refrigerating unit |
Non-Patent Citations (1)
| Title |
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| "变截面纳米线声子输运蒙特卡洛模拟";王赞 等;《中国科学：技术科学》;20100331;第40卷(第3期);第231-236页 * |
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| CN106059393A (en) | 2016-10-26 |
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Inventor after: Wang Zan Inventor after: Wen Binghui Inventor after: Wang Jiyu Inventor after: Wang Song Inventor after: Yu Bo Inventor before: Wang Zan Inventor before: Zhao Feichao Inventor before: Ruan Yiwu |
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Effective date of registration: 20180530 Address after: 450001 Henan University of Technology, 100 Lianhua street, Zhengzhou high tech Development Zone, Henan Applicant after: Henan Industry University Address before: 450007 Room 303, 19 Building, six front street, Zhongyuan District, Zhengzhou, Henan. Applicant before: Wang Zan |
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