CN108007014B - Electric card refrigerating device based on photoelectric hybrid driving and method thereof - Google Patents
Electric card refrigerating device based on photoelectric hybrid driving and method thereof Download PDFInfo
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- CN108007014B CN108007014B CN201711251330.8A CN201711251330A CN108007014B CN 108007014 B CN108007014 B CN 108007014B CN 201711251330 A CN201711251330 A CN 201711251330A CN 108007014 B CN108007014 B CN 108007014B
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- thermal switch
- electric card
- ultraviolet light
- switch
- refrigerator
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005057 refrigeration Methods 0.000 claims abstract description 22
- 239000000523 sample Substances 0.000 claims abstract description 15
- 239000013307 optical fiber Substances 0.000 claims abstract description 11
- 230000010287 polarization Effects 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 9
- 239000002033 PVDF binder Substances 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 8
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 8
- 230000028161 membrane depolarization Effects 0.000 claims description 6
- 229910002113 barium titanate Inorganic materials 0.000 claims description 3
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims description 3
- NKZSPGSOXYXWQA-UHFFFAOYSA-N dioxido(oxo)titanium;lead(2+) Chemical compound [Pb+2].[O-][Ti]([O-])=O NKZSPGSOXYXWQA-UHFFFAOYSA-N 0.000 claims description 3
- 229910052746 lanthanum Inorganic materials 0.000 claims description 3
- -1 lanthanum modified lead zirconate titanate Chemical class 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 2
- 238000001816 cooling Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses an electric card refrigerating device based on photoelectric hybrid driving and a method thereof. The device comprises a base, an ultraviolet light source, an optical fiber, an ultraviolet light probe, a photoelectric actuator, a switch control circuit, a refrigerating sheet, an electric card refrigerator, a thermal switch and a radiating fin; the base is provided with an ultraviolet light source, an ultraviolet light probe, a photoelectric actuator, a switch control circuit, a refrigeration piece, an electric card refrigerator, a thermal switch and a radiating fin, the ultraviolet light source is connected with the ultraviolet light probe through an optical fiber, the photoelectric actuator is connected with the switch control circuit through a wire, the switch control circuit is connected with the electric card refrigerator and the thermal switch through wires, and the refrigeration piece, the first thermal switch, the electric card refrigerator, the second thermal switch and the radiating fin are sequentially connected through bolts. When the ultraviolet light irradiates, the photoelectric actuator generates direct current photoproduction voltage, the voltage becomes square wave voltage under the modulation of the switch control circuit, and the electric card refrigerator and the thermal switch are driven to work, so that the refrigeration of the electric card is realized. The invention has the characteristics of simple structure, wide application range and non-contact control.
Description
Technical Field
The invention relates to a solid refrigeration device, in particular to an electric card refrigeration device based on photoelectric hybrid driving and a method thereof.
Background
The solid refrigeration technology has the characteristics of small volume, environmental protection, easy integration and the like, so the development is rapid in recent years. Common solid refrigeration technologies include semiconductor refrigeration, electric card refrigeration, and the like. Compared with semiconductor refrigeration, the electric card refrigeration has the advantages of high efficiency and low cost.
Electric card refrigerating devices appearing in recent years all adopt a power supply driving mode, for example, a method for improving the performance of dielectric electric card ceramic refrigerating equipment is disclosed in patent CN104441848A, and a multilayer electric card ceramic module is adopted to realize a refrigerating function; patent CN206056000U discloses a fluid heat exchange electric card refrigeration device, which realizes heat exchange by circulation of fluid between a cold end and a hot end; patent CN206055998U discloses a rotary electric card refrigerating device, which realizes the refrigeration transfer of heat at cold end and hot end by the rotation of the power-on disc. These electric card cooling devices require a high voltage amplifier and are contact controlled, suitable for applications with little space restrictions. The photoelectric hybrid driving part replaces a power supply, does not need a high-voltage amplifier, is easy to miniaturize, belongs to non-contact driving, and is suitable for occasions such as aircrafts and the like which have limitation on self space and have rich external ultraviolet rays during working.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an electric card refrigerating device based on photoelectric hybrid driving and a method thereof.
The electric card refrigerating device based on photoelectric hybrid driving comprises a base, an ultraviolet light source, an optical fiber, an ultraviolet light probe, a photoelectric actuator, a switch control circuit, a refrigerating sheet, an electric card refrigerator, a thermal switch and a radiating sheet; the thermal switch comprises a first thermal switch and a second thermal switch; the base is provided with an ultraviolet light source, an ultraviolet light probe, a photoelectric actuator, a switch control circuit, a refrigerating sheet, an electric card refrigerator, a thermal switch and a radiating sheet, wherein the ultraviolet light source is connected with the ultraviolet light probe through an optical fiber; the first thermal switch is positioned at one side of the electric card refrigerator, and the second thermal switch is positioned at the other side of the electric card refrigerator; the refrigerating sheet, the first thermal switch, the electric card refrigerator, the second thermal switch and the radiating sheet are connected in sequence through the fixing piece.
In the electric card refrigerating device, the following preferred modes can be adopted:
the wavelength of the ultraviolet light source is 365 nm. The photoelectric actuator adopts lanthanum modified lead zirconate titanate (PLZT). The electric card refrigerator is made of ferroelectric ceramic with electric card effect, such as ferroelectric ceramic barium titanate (BaTiO)3) Lead titanate (PbTiO)3) And the like. The photoelectric card refrigerator adopts ferroelectric polymers polyvinylidene fluoride (PVDF), polyvinylidene fluoride copolymer (PVDF-TrFE) and the like with electric card effect. The thermal switch is an active thermal switch and can be opened and closed under the control of an electric signal. The fixing piece can be a bolt.
The electric card refrigerating device based on the photoelectric hybrid driving and the control method are as follows: ultraviolet light with the wavelength of 365nm emitted by an ultraviolet light source irradiates a photoelectric actuator through an optical fiber and an ultraviolet light probe, the photoelectric actuator generates photo-generated direct-current voltage, the photo-generated direct-current voltage is transmitted to a switch control circuit through a lead and is modulated into square wave voltage by the switch control circuit, the switch control circuit outputs three paths of square wave voltage, the first path of square wave voltage is used for controlling an electric card refrigerator to realize the polarization and depolarization process of the electric card refrigerator, the second path of square wave voltage is transmitted to a first thermal switch, the third path of square wave voltage is transmitted to a second thermal switch, and the first thermal switch and the second thermal switch are sequentially opened and closed; when the first thermal switch is closed and the second thermal switch is opened, the heat generated by the electric card refrigerator due to polarization is transferred to the radiating fin through the second thermal switch, and the heat is radiated to the outside; when the first thermal switch is turned on and the second thermal switch is turned off, the electric card refrigerator depolarizes and absorbs heat, the temperature of the electric card refrigerator is reduced, and the heat on the refrigerating sheet is transferred to the electric card refrigerator through the first thermal switch; this process is continuously cycled to achieve heat transfer and electric card cooling. By controlling the intensity of ultraviolet light emitted by the ultraviolet light source and the square wave frequency modulated by the switch control circuit, the polarization and depolarization intensity, the polarization turnover frequency and the switching frequency of the thermal switch of the electric card refrigerator can be controlled, and the purpose of controlling the refrigeration effect is achieved.
Compared with the prior art, the invention has the beneficial effects
1) The photoelectric hybrid drive is suitable for occasions with abundant ultraviolet light, such as outer space and the like.
2) High-voltage is not needed, the size of the electric card refrigerating device can be reduced, and meanwhile, the power consumption of the electric card refrigerating device is reduced by about 50%.
3) The photoelectric actuator is controlled in a non-contact mode, and is prevented from being influenced by a magnetic field and an electric field.
Drawings
FIG. 1 is a schematic structural diagram of an electric card refrigeration device driven by a photoelectric hybrid;
FIG. 2 is a schematic diagram of the structure of the cooling plate, the electric card cooler, the thermal switch and the cooling plate of the present invention;
Detailed Description
The following describes the operation of the electric card refrigeration device based on the hybrid driving of the light and the electricity with reference to the accompanying drawings.
As shown in fig. 1-2, the electric card refrigeration device based on photoelectric hybrid driving comprises a base 1, an ultraviolet light source 2, an optical fiber 3, an ultraviolet light probe 4, a photoelectric actuator 5, a switch control circuit 6, a refrigeration sheet 7, an electric card refrigerator 8, a thermal switch 9 and a heat sink 10; the thermal switch 9 comprises a first thermal switch 9.1, a second thermal switch 9.2; an ultraviolet light source 2, an ultraviolet light probe 4, a photoelectric actuator 5, a switch control circuit 6, a refrigerating piece 7, an electric card refrigerator 8, a thermal switch 9 and a radiating fin 10 are arranged on the base 1, the ultraviolet light source 2 is connected with the ultraviolet light probe 4 through an optical fiber 3, the photoelectric actuator 5 is connected with the switch control circuit 6 through a lead, the switch control circuit 6 is connected with the electric card refrigerator 8, a first thermal switch 9.1 and a second thermal switch 9.2 through leads, and the refrigerating piece 7 is connected with the first thermal switch 9.1 through a bolt; the first thermal switch 9.1 is positioned at one side of the electrocaloric refrigerator 8 and is connected with the electrocaloric refrigerator through a bolt; the second thermal switch 9.2 is positioned at the other side of the electrocaloric refrigerator 8 and is also connected with the electrocaloric refrigerator through a bolt; the second thermal switch 9.2 and the heat sink 10 are also bolted.
In the present embodiment, the wavelength of the ultraviolet light source 2 is 365 nm; the photoelectric actuator 5 adopts lanthanum modified lead zirconate titanate (PLZT); the electrocaloric refrigerator 8 is made of ferroelectric ceramic with electrocaloric effect, such as ferroelectric ceramic barium titanate (BaTiO)3) Lead titanate (PbTiO)3) Etc.; the photoelectric card refrigerator 8 is made of ferroelectric polymers with an electric card effect, such as polyvinylidene fluoride (PVDF), polyvinylidene fluoride copolymer (PVDF-TrFE) and the like; the thermal switch 9 is an active thermal switch, and can be opened and closed under the control of an electric signal.
The electric card refrigerating device based on the photoelectric hybrid driving and the control method are as follows: ultraviolet light with the wavelength of 365nm emitted by an ultraviolet light source 2 irradiates a photoelectric actuator 5 through an optical fiber 3 and an ultraviolet light probe 4, the photoelectric actuator 5 generates photo-generated direct current voltage, the photo-generated direct current voltage is transmitted to a switch control circuit 6 through a lead and is modulated into square wave voltage through the switch control circuit 6, the switch control circuit 6 outputs three paths of square wave voltage, the first path of square wave voltage is used for controlling an electric card refrigerator 8 to realize the polarization and depolarization process of the electric card refrigerator 8, the second path of square wave voltage is transmitted to a first thermal switch 9.1, the third path of square wave voltage is transmitted to a second thermal switch 9.2, and the first thermal switch 9.1 and the second thermal switch 9.2 are sequentially opened and closed; when the first thermal switch 9.1 is closed and the second thermal switch 9.2 is opened, the heat generated by the electric card refrigerator 8 due to polarization is transferred to the radiating fin 10 through the second thermal switch 9.2, and the heat is radiated to the outside; when the first thermal switch 9.1 is opened and the second thermal switch 9.2 is closed, the electric card refrigerator 8 depolarizes and absorbs heat, the temperature of the electric card refrigerator is reduced, and the heat on the refrigerating sheet 7 is transferred to the electric card refrigerator 8 through the first thermal switch 9.1; this process is continuously cycled to achieve heat transfer and electric card cooling. By controlling the intensity of ultraviolet light emitted by the ultraviolet light source 2 and the square wave frequency modulated by the switch control circuit 6, the polarization and depolarization intensity, the polarization turnover frequency and the opening and closing frequency of the thermal switch 9 of the electrocaloric refrigerator 8 can be controlled, and the purpose of controlling the refrigeration effect is achieved.
Claims (7)
1. A control method for an electric card refrigerating device based on photoelectric hybrid driving comprises a base (1), an ultraviolet light source (2), an optical fiber (3), an ultraviolet light probe (4), a photoelectric actuator (5), a switch control circuit (6), a refrigerating sheet (7), an electric card refrigerator (8), a thermal switch (9) and a radiating fin (10); the thermal switch (9) comprises a first thermal switch (9.1) and a second thermal switch (9.2); an ultraviolet light source (2), an ultraviolet light probe (4), a photoelectric actuator (5), a switch control circuit (6), a refrigerating sheet (7), an electric card refrigerator (8), a thermal switch (9) and a radiating fin (10) are arranged on the base (1), the ultraviolet light source (2) is connected with the ultraviolet light probe (4) through an optical fiber (3), the photoelectric actuator (5) is connected with the switch control circuit (6) through a lead, and the switch control circuit (6) is connected with the electric card refrigerator (8), the first thermal switch (9.1) and the second thermal switch (9.2) through leads; the first thermal switch (9.1) is positioned at one side of the electric card refrigerator (8), and the second thermal switch (9.2) is positioned at the other side of the electric card refrigerator (8); the refrigerating sheet (7), the first thermal switch (9.1), the electric card refrigerator (8), the second thermal switch (9.2) and the radiating sheet (10) are connected in sequence through the fixing piece;
the control method comprises the following steps: ultraviolet light with the wavelength of 365nm emitted by an ultraviolet light source (2) irradiates a photoelectric actuator (5) through an optical fiber (3) and an ultraviolet light probe (4), the photoelectric actuator (5) generates photoproduction direct current voltage, the photoproduction direct current voltage is transmitted to a switch control circuit (6) through a lead and is modulated into square wave voltage through the switch control circuit (6), the switch control circuit (6) outputs three paths of square wave voltage, the first path of square wave voltage is used for controlling an electric card refrigerator (8) to realize the polarization and depolarization process of the electric card refrigerator (8), the second path of square wave voltage is transmitted to a first thermal switch (9.1), the third path of square wave voltage is transmitted to a second thermal switch (9.2), and the first thermal switch (9.1) and the second thermal switch (9.2) are sequentially opened and closed; when the first thermal switch (9.1) is closed and the second thermal switch (9.2) is opened, the heat generated by the electric card refrigerator (8) due to polarization is transferred to the heat sink (10) through the second thermal switch (9.2), and the heat is dissipated to the outside; when the first thermal switch (9.1) is opened and the second thermal switch (9.2) is closed, the electric card refrigerator (8) depolarizes and absorbs heat, the temperature of the electric card refrigerator is reduced, and the heat on the refrigeration sheet (7) is transferred to the electric card refrigerator (8) through the first thermal switch (9.1); the process is continuously circulated, so that heat transfer and electric card refrigeration are realized;
the intensity of ultraviolet light emitted by the ultraviolet light source (2) and the square wave frequency modulated by the switch control circuit (6) are controlled to control the polarization and depolarization intensity, the polarization turnover frequency and the opening and closing frequency of the thermal switch (9) of the electric card refrigerator (8), so that the purpose of controlling the refrigeration effect is achieved.
2. A control method according to claim 1, characterized in that the wavelength of the uv light source (2) is 365 nm.
3. A control method according to claim 1, characterized in that the electro-optical actuator (5) is lanthanum modified lead zirconate titanate.
4. A control method according to claim 1, characterized in that said electrocaloric refrigerator (8) is made of ferroelectric ceramics having electrocaloric effect, and the material comprises ferroelectric ceramics barium titanate or lead titanate.
5. The control method according to claim 1, characterized in that the photoelectric card refrigerator (8) is made of a ferroelectric polymer polyvinylidene fluoride or polyvinylidene fluoride copolymer material with electric card effect.
6. A control method according to claim 1, characterized in that said thermal switch (9) is an active thermal switch, which can be opened and closed under the control of an electrical signal.
7. The control method of claim 1, wherein the fixing member is a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711251330.8A CN108007014B (en) | 2017-12-01 | 2017-12-01 | Electric card refrigerating device based on photoelectric hybrid driving and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711251330.8A CN108007014B (en) | 2017-12-01 | 2017-12-01 | Electric card refrigerating device based on photoelectric hybrid driving and method thereof |
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| CN108007014A CN108007014A (en) | 2018-05-08 |
| CN108007014B true CN108007014B (en) | 2020-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711251330.8A Active CN108007014B (en) | 2017-12-01 | 2017-12-01 | Electric card refrigerating device based on photoelectric hybrid driving and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112460833B (en) * | 2020-12-01 | 2022-02-22 | 西安交通大学 | Light small-size electricity card refrigerating plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2420662A (en) * | 2004-11-29 | 2006-05-31 | Alexandr Mishchenko | Electrocaloric colling device with heat switches |
| CN102192614B (en) * | 2010-03-12 | 2012-11-07 | 香港理工大学 | Sheet-type micro refrigerator applying lead-free ferroelectric material |
| CN102997533A (en) * | 2011-09-08 | 2013-03-27 | 吉富新能源科技(上海)有限公司 | Car refrigerator with transparent film solar cell panels |
| CN105593616B (en) * | 2013-08-01 | 2017-12-26 | 约塞夫史蒂芬学院 | Method for electric heating energy conversion |
| CN106123391A (en) * | 2016-06-21 | 2016-11-16 | 上海工程技术大学 | A kind of all solid state electricity card refrigerator |
| CN106091470A (en) * | 2016-06-21 | 2016-11-09 | 上海工程技术大学 | A kind of refrigeration plant and refrigerating method thereof |
| CN106123392A (en) * | 2016-06-21 | 2016-11-16 | 上海工程技术大学 | A kind of electricity card refrigeration system |
| CN206004132U (en) * | 2016-06-24 | 2017-03-08 | 陈晓栋 | Lasing source plant growing device |
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