CN106787947A - The device that a kind of utilization body temperature generates electricity - Google Patents

The device that a kind of utilization body temperature generates electricity Download PDF

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Publication number
CN106787947A
CN106787947A CN201510820821.4A CN201510820821A CN106787947A CN 106787947 A CN106787947 A CN 106787947A CN 201510820821 A CN201510820821 A CN 201510820821A CN 106787947 A CN106787947 A CN 106787947A
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CN
China
Prior art keywords
porous
collector panel
heat sink
heat
body temperature
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CN201510820821.4A
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Chinese (zh)
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CN106787947B (en
Inventor
周军
刘抗
丁天朋
李嘉
陈千
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华中科技大学
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N3/00Generators in which thermal or kinetic energy is converted into electrical energy by ionisation of a fluid and removal of the charge therefrom

Abstract

The invention discloses the device that a kind of utilization body temperature generates electricity, the device includes heat collector panel, heat sink, two blocks of base plates, two blocks of side plates, porous electric layer, porous drain layer, electrode and cycle fluids;Heat collector panel is connected by two blocks of side plates respectively with the two ends of heat sink, and heat collector panel, heat sink, two blocks of side plates and two pieces of base plates form an airtight cavity;Porous electric layer is close to the inner side of heat collector panel;Its two ends is equipped with electrode;There is the perforate for extraction electrode on side plate;Porous drain layer is close to the inner side of heat sink, is infiltrated by cycle fluid inside it, and the end of porous electric layer is close at the two ends of porous drain layer;When the device is worn on human body, using heat collector panel from the heat of absorption of human body, evaporate the cycle fluid in porous electric layer so that cycle fluid produces potential and continue to export electric energy in porous electric layer internal circulation flow at porous electric layer two ends;Realize the purpose persistently generated electricity using the extremely low temperature difference of human body and environment;With simple structure, the characteristics of light wearable.

Description

The device that a kind of utilization body temperature generates electricity

Technical field

It is wearable in human body more particularly, to one kind the invention belongs to technical field of microelectronic devices Directly using body temperature generate electricity device.

Background technology

With the development of microelectric technique, electronic equipment contacts more and more tighter with human lives work It is close.The microminiaturization of electronic equipment and wearable chemical conversion are electronic equipment development trend, such as Google's glasses, Electronics bracelet and other wearable health monitoring diagnostic devices etc..Wearable device is people Life bring great convenience, but its energy supply problem is also a great challenge.Battery is conventional Energy supply means, but battery has that environmental pollution and continuation are powered.Using human body in itself Heat energy carries out generating energy supply not only clean environment firendly but also the long-term continued power of energy, is a kind of effective replacement Scheme.But because body temperature is small with circumstance of temperature difference, about 6~10 DEG C, belong to extremely low temperature low grade heat energy, It is larger using difficulty.

Of the prior art can be semiconductor thermoelectric conversion by the mode that body waste heat is converted into electric energy;But Seebeck coefficient is small in itself for semi-conductor thermoelectric material, up to about 200 μ V/K.It is micro- enough to export The voltage of electronic device energy supply, then need hundreds and thousands of small units to be cascaded output voltage, Structure is sufficiently complex;It is relatively costly and thermoelectric material is generally expensive.

The content of the invention

For the disadvantages described above or Improvement requirement of prior art, body is utilized the invention provides one kind The device that temperature generates electricity, its object is to solve existing body temperature power field semiconductor heat power conversion technology Baroque problem.

To achieve the above object, according to one aspect of the present invention, there is provided one kind utilizes body temperature The device of generating, including two pieces of base plates, two blocks of side plates, porous electric layer, porous drain layer, electrode, Cycle fluid, heat collector panel and heat sink;

Heat collector panel is connected by two blocks of side plates respectively with the two ends of heat sink, heat collector panel, heat sink, two Block side plate and two pieces of base plates form an airtight cavity;

Porous electric layer is close to the inner side of heat collector panel in airtight cavity;The two of porous electric layer End is equipped with electrode;There is the perforate for extraction electrode on side plate;Wherein, it is on the inside of heat collector panel Refer to its side relative with heat sink;

Porous drain layer is close to the inner side of heat sink in airtight cavity;The porous internal quilt of drain layer Cycle fluid infiltrates, and the end of porous electric layer is close at the two ends of porous drain layer;Wherein, heat sink Inner side refer to its side relative with heat collector panel;

The device that this utilization body temperature that the present invention is provided generates electricity, when it is not worn on human body, Porous electric layer is from porous drain layer absorption cycle working medium to complete wetting;When it is worn on human body, Heat collector panel is close to the porous electric layer of heat sink, porous generating from absorption of human body heat, heat transfer Layer in cycle fluid from porous electric layer surface evaporation, while being driven in the presence of capillary force porous Cycle fluid inside electric layer produces potential in porous generating intrastratal flow at porous electric layer two ends And electric energy is exported, electric energy is derived by electrode;And the gaseous working medium of porous electric layer is left in heat sink Place's release heat condenses into liquid, and is transmitted back to porous electric layer lower end by porous drain layer, realizes Working medium circulation, is achieved in continuously being generated electricity using body temperature.

Preferably, heat collector panel and heat sink are highly heat-conductive material, the heat collector panel side relative with heat sink It is electrically insulated;Base plate, side plate are electric insulation and heat insulator.

Preferably, heat collector panel, heat sink, side plate, porous electric layer and porous drain layer are arc Structure so that the overall curved shape of device generated electricity using body temperature, is easy to wearing.

Preferably, above-mentioned heat sink outside has the fin structure of enhancing radiating.

Preferably, porous electric layer uses integrally formed nano-porous materials, or using by nanometer The nano-porous materials of particle packing.

Preferably, porous drain layer uses um porous material.

Preferably, cycle fluid uses water or organic solvent.

In general, by the contemplated above technical scheme of the present invention compared with prior art, can Obtain following beneficial effect:

(1) device that the utilization body temperature that the present invention is provided generates electricity, is followed using liquid evaporation-condensation Ring, driving cycle working medium constant flow in porous electric layer, by nanochannel in porous electric layer Electrokinetic effects produce the output of continual electric energy, so as to convert heat into electric energy;

(2) device that the utilization body temperature that the present invention is provided generates electricity, can directly be worn on human body, profit It is microelectronic component energy supply with the extremely low thermo-electric generation of human body and environment, and single loop component can be provided The up to voltage of 1V, it is not necessary to which hundreds of junior unit component series connection provides larger output voltage;

(3) device that the utilization body temperature that the present invention is provided generates electricity, the capillary using porous material is made With the working medium circulation in control whole device, the cycle fluid in device can not be flowed freely, therefore be somebody's turn to do Device arbitrarily angled can be placed, and human body random movement does not influence working medium circulation and generating.

Brief description of the drawings

Fig. 1 is the structural representation of TRT provided in an embodiment of the present invention.

In all of the figs, identical reference be used for represent identical element or structure, wherein:1- Heat collector panel, 2- heat sinks, 3- side plates, 4- base plates, the porous electric layers of 5-, 6- electrodes, 7- is porous leads Liquid layer, 8- cycle fluids.

Specific embodiment

In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with accompanying drawing And embodiment, the present invention will be described in further detail.It should be appreciated that described herein specific Embodiment is only used to explain the present invention, is not intended to limit the present invention.Additionally, disclosed below As long as in each implementation method of the invention involved technical characteristic do not constitute conflict each other can To be mutually combined.

The device that a kind of utilization body temperature that embodiment 1 is provided generates electricity, its structure are as shown in figure 1, bag Include arc heat collector panel 1 staggered relatively, arc heat sink 2, it is two blocks of side plates, 3, two pieces of base plates 4, many Hole electric layer 5, electrode 6, porous drain layer 7, cycle fluid 8;

There are two pieces of arc side plates 3 and two pieces of base plates 4 between heat collector panel 1 and heat sink 2;Heat collector panel 1, 2, two blocks of side plates 3 of heat sink and two pieces of base plates 4 form an airtight cavity;With radiating on heat collector panel 1 One layer of porous electric layer 5 is close in the relative inner side of plate 2, and porous electric layer two ends are provided with electrode 6, side plate There is opening, electrode 6 can be drawn by the perforate on 3;On heat sink 2 it is relative with heat collector panel 1 in One layer of porous drain layer 7 is close in side, is infiltrated by liquid circulation working medium 8 inside porous drain layer 7, porous It is close to the end of porous electric layer 5 in the two ends of drain layer.

In the present embodiment, heat collector panel 1, heat sink 2, side plate 3, porous electric layer 5 and porous drain Layer 7 is arcuate structure so that the overall curved Bracelet structure of the TRT, can directly be worn on At wrist or arm, its porous electric layer 5 uses nano-porous materials;When human body is not worn on, Nanoporous electric layer 5 absorbs liquid circulation working medium to complete wetting from um porous drain layer;Work as quilt When being worn on human body, heat collector panel 1 is close to many of heat sink 2 from absorption of human body heat, heat transfer Hole electric layer 5, the cycle fluid 8 in porous electric layer 5 from the surface evaporation of porous electric layer 5, while The cycle fluid inside porous electric layer 5 is driven to be flowed toward upper end from lower end in the presence of capillary force, Upper and lower ends by the electrokinetic phenomenon in nano-porous materials in porous electric layer 5 produce potential and defeated Go out electric energy, electric energy is derived by electrode 6;And the cycle fluid from the evaporation of porous electric layer 5 is converted to Gaseous state, and release heat condenses into liquid at heat sink 2, and be transmitted back to by porous drain layer 7 The lower end of porous electric layer 5, realizes working medium circulation;Therefore the device continuously utilizes body temperature Generated electricity.

The device that the utilization body temperature that the present embodiment is provided generates electricity, by heat collector panel 1, heat sink 2, two Block side plate 3 and the airtight cavity of two pieces of formation of base plate 4 can run at ambient pressure, and also vacuum-pumping is low Pressure operation.The quality of the TRT thermoelectricity capability depends on selected nanometer generating layer material property knot The combined influence of structure, the species of cycle fluid and inside cavity environmental pressure, it is porous in the present embodiment Electric layer is piled up using the carbon nano-particle of a diameter of 30nm~40nm and formed, the table of carbon nano-particle Face eletrokinetic potential is -28mV;The cycle fluid that the present embodiment is used is deionized water;In airtight cavity Pressure be 4kpa.

This device generated electricity using body temperature provided embodiment is tested, in environment temperature Under the conditions of 21 DEG C, the TRT exports thermoelectric voltage up to 1V;Can be within 50s by one 1 The electric capacity of μ F is charged to 0.8V, can be used to be powered for microelectronic component.

As it will be easily appreciated by one skilled in the art that presently preferred embodiments of the present invention is the foregoing is only, It is not intended to limit the invention, all any modifications made within the spirit and principles in the present invention, etc. With replacement and improvement etc., should be included within the scope of the present invention.

Claims (7)

1. the device that a kind of utilization body temperature generates electricity, it is characterised in that including heat collector panel (1), dissipate Hot plate (2), two pieces of side plates (3), two pieces of base plates (4), porous electric layer (5), electrode (6), Porous drain layer (7) and cycle fluid (8);
The heat collector panel (1) is connected by two pieces of side plates (3) respectively with the two ends of heat sink (2), Heat collector panel (1), heat sink (2), two pieces of side plates (3) and two pieces of base plate (4) formation one are closed Cavity;
The porous electric layer (5) is close to the inner side of heat collector panel (1), porous electric layer (5) Two ends are provided with electrode (6);There is the perforate for extraction electrode (6) on side plate (3);
Porous drain layer (7) is close to the inner side of heat sink (2), and porous generating is close at its two ends The end of layer (5);Porous drain layer (7) is infiltrated by cycle fluid (8).
2. the device for being generated electricity using body temperature as claimed in claim 1, it is characterised in that described Heat collector panel (1), heat sink (2), side plate (3), porous electric layer (5) and porous drain layer (7) It is arcuate structure so that the overall curved shape of the device that the utilization body temperature generates electricity.
3. the device for being generated electricity using body temperature as claimed in claim 1 or 2, it is characterised in that The outside of the heat sink (2) has the fin structure of enhancing radiating.
4. the device for being generated electricity using body temperature as claimed in claim 1, it is characterised in that described Heat collector panel (1) and heat sink (2) are highly heat-conductive material, heat collector panel (1) and heat sink (2) phase To side use electrically insulating material;Base plate (4), side plate (3) are using electric insulation and heat insulation Material.
5. the device for being generated electricity using body temperature as claimed in claim 1, it is characterised in that described Porous electric layer (5) uses integrally formed nano-porous materials, or is piled up using by nano particle Nano-porous materials.
6. the device for being generated electricity using body temperature as claimed in claim 1, it is characterised in that described Porous drain layer (7) uses um porous material.
7. the device for being generated electricity using body temperature as claimed in claim 1, it is characterised in that described Cycle fluid (8) uses water or organic solvent.
CN201510820821.4A 2015-11-24 2015-11-24 A kind of device to be generated electricity using body temperature CN106787947B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07163167A (en) * 1993-12-01 1995-06-23 Hitachi Ltd Alkali metal thermoelectric power generator
CN104578978A (en) * 2015-01-15 2015-04-29 苏州荷达新能源技术有限公司 Portable wearable temperature difference power generation device
CN204376778U (en) * 2015-01-15 2015-06-03 苏州荷达新能源技术有限公司 A kind of portable wearable temperature difference electricity generation device
CN104811089A (en) * 2015-05-19 2015-07-29 京东方科技集团股份有限公司 Triboelectrification device and manufacturing method thereof, as well as electronic equipment and wearable equipment
CN104811092A (en) * 2015-05-19 2015-07-29 武汉大学 System for performing power generation by utilizing liquid thermoelectric effect
CN204681149U (en) * 2015-06-16 2015-09-30 四川分享微联科技有限公司 A kind of Wrist-wearing electronic equipment realizing body temperature charging
CN205160407U (en) * 2015-11-24 2016-04-13 华中科技大学 Utilize device of body temperature electricity generation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07163167A (en) * 1993-12-01 1995-06-23 Hitachi Ltd Alkali metal thermoelectric power generator
CN104578978A (en) * 2015-01-15 2015-04-29 苏州荷达新能源技术有限公司 Portable wearable temperature difference power generation device
CN204376778U (en) * 2015-01-15 2015-06-03 苏州荷达新能源技术有限公司 A kind of portable wearable temperature difference electricity generation device
CN104811089A (en) * 2015-05-19 2015-07-29 京东方科技集团股份有限公司 Triboelectrification device and manufacturing method thereof, as well as electronic equipment and wearable equipment
CN104811092A (en) * 2015-05-19 2015-07-29 武汉大学 System for performing power generation by utilizing liquid thermoelectric effect
CN204681149U (en) * 2015-06-16 2015-09-30 四川分享微联科技有限公司 A kind of Wrist-wearing electronic equipment realizing body temperature charging
CN205160407U (en) * 2015-11-24 2016-04-13 华中科技大学 Utilize device of body temperature electricity generation

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