CN106787947B - A kind of device to be generated electricity using body temperature - Google Patents

A kind of device to be generated electricity using body temperature Download PDF

Info

Publication number
CN106787947B
CN106787947B CN201510820821.4A CN201510820821A CN106787947B CN 106787947 B CN106787947 B CN 106787947B CN 201510820821 A CN201510820821 A CN 201510820821A CN 106787947 B CN106787947 B CN 106787947B
Authority
CN
China
Prior art keywords
porous
electric layer
layer
heat
collector panel
Prior art date
Application number
CN201510820821.4A
Other languages
Chinese (zh)
Other versions
CN106787947A (en
Inventor
周军
刘抗
丁天朋
李嘉
陈千
Original Assignee
华中科技大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华中科技大学 filed Critical 华中科技大学
Priority to CN201510820821.4A priority Critical patent/CN106787947B/en
Publication of CN106787947A publication Critical patent/CN106787947A/en
Application granted granted Critical
Publication of CN106787947B publication Critical patent/CN106787947B/en

Links

Classifications

    • 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 a kind of devices to be generated electricity using body temperature, which includes heat collector panel, heat sink, two pieces of bottom plates, two blocks of side plates, porous electric layer, porous fluid layer, electrode and cycle fluid;The both ends of heat collector panel and heat sink pass through two pieces of side plate connections respectively, and heat collector panel, heat sink, two blocks of side plates and two pieces of bottom plates form an airtight cavity;Porous electric layer is close to the inside of heat collector panel;Its both ends is equipped with electrode;There is the aperture for extraction electrode on side plate;Porous fluid layer is close to the inside of heat sink, inside infiltrated by cycle fluid, the end of porous electric layer is close at the both ends of porous fluid 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 generates potential at porous electric layer both ends and continue to export electric energy in porous electric layer internal circulation flow;Realize the purpose persistently to generate electricity using the extremely low temperature difference of human body and environment;It is simple with structure, light wearable feature.

Description

A kind of device to be generated electricity using body temperature

Technical field

The invention belongs to technical field of microelectronic devices, more particularly, to a kind of wearable direct utilization in human body The device of body temperature power generation.

Background technique

With the development of microelectric technique, electronic equipment and contacting for human lives' work are increasingly closer.Electronic equipment Microminiaturization and wearable chemical conversion be electronic equipment development trend, such as Google glass, electronics bracelet and other are wearable Health monitoring diagnostic device etc..Wearable device brings great convenience for people's lives, but it energizes problem It is a great challenge.Battery is common energy supply means, but battery has environmental pollution and duration power supply.It uses The thermal energy of human body itself carries out power generation energy supply not only clean and environmental protection but also the long-term continued power of energy, is a kind of effective alternative Case.But since 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.

The mode in the prior art that body waste heat can be converted to electric energy is semiconductor thermoelectric conversion;But semiconductor thermoelectric Material Seebeck coefficient itself is small, up to about 200 μ V/K.To export the voltage of enough microelectronic component energy supplies, then need Hundreds and thousands of small units are cascaded output voltage, and structure is sufficiently complex;And the usual price of thermoelectric material is more expensive, cost It is higher.

Summary of the invention

Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of dresses to be generated electricity using body temperature It sets, its object is to solve the problems, such as that existing body temperature power field semiconductor heat power conversion technology is complicated.

To achieve the above object, according to one aspect of the present invention, a kind of device to generate electricity using body temperature is provided, Including two pieces of bottom plates, two blocks of side plates, porous electric layer, porous fluid layer, electrode, cycle fluid, heat collector panel and heat sink;

The both ends of heat collector panel and heat sink pass through two pieces of side plate connections, heat collector panel, heat sink, two blocks of side plates and two pieces respectively Bottom plate forms an airtight cavity;

Porous electric layer is set in airtight cavity, is tightly attached to the inside of heat collector panel;The both ends of porous electric layer are equipped with electricity Pole;There is the aperture for extraction electrode on side plate;Wherein, its side opposite with heat sink is referred on the inside of heat collector panel;

Porous fluid layer is set in airtight cavity, is close to the inside of heat sink;It is soaked inside porous fluid layer by cycle fluid Profit, the end of porous electric layer is close at the both ends of porous fluid layer;Wherein, refer to that it is opposite with heat collector panel on the inside of heat sink Side;

This device to be generated electricity using body temperature provided by the invention, when it is not worn on human body, porous power generation Layer is from porous fluid layer absorption cycle working medium to complete wetting;When it is worn on human body, heat collector panel from absorption of human body heat, Heat transfer to the porous electric layer for being close to heat sink, cycle fluid in porous electric layer from porous electric layer surface evaporation, Drive the cycle fluid inside porous electric layer in porous power generation intrastratal flow under the action of capillary force simultaneously, in porous power generation Layer both ends generate potential and export electric energy, and electric energy is exported 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 fluid layer, realizes working medium circulation, thus real Now continuously generated electricity using body temperature.

Preferably, heat collector panel and heat sink are highly heat-conductive material, and the heat collector panel side opposite with heat sink is electrically insulated;Bottom Plate, side plate are electrical isolation and heat insulator.

Preferably, heat collector panel, heat sink, side plate, porous electric layer and porous fluid layer are arcuate structure, so that the benefit The whole arc-shaped shape of device to be generated electricity with body temperature, convenient for wearing.

Preferably, there is the fin structure of enhancing heat dissipation on the outside of above-mentioned heat sink.

Preferably, porous electric layer use integrally formed nano-porous materials, or using by nano particle accumulation and At nano-porous materials.

Preferably, porous fluid layer uses um porous material.

Preferably, cycle fluid uses water or organic solvent.

In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show Beneficial effect:

(1) device provided by the invention to be generated electricity using body temperature utilizes liquid evaporation-condensation cycle, driving circulation Working medium constant flow in porous electric layer generates continual electricity by the electrokinetic effects of nanochannel in porous electric layer It can export, to convert heat into electric energy;

(2) device provided by the invention to be generated electricity using body temperature, can be directly worn on human body, utilize human body and environment Extremely low thermo-electric generation be microelectronic component energy supply, and single loop component can provide the up to voltage of 1V, not need on hundred Thousand junior unit component is connected to provide biggish output voltage;

(3) device provided by the invention to be generated electricity using body temperature is controlled entire using the capillarity of porous material Working medium circulation in device, the cycle fluid in device cannot flow freely, thus the device can any angle place, human body with Conation does not influence working medium circulation and power generation.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of power generator provided in an embodiment of the present invention.

In all the appended drawings, identical appended drawing reference is used to denote the same element or structure, in which: 1- heat collector panel, 2- Heat sink, 3- side plate, 4- bottom plate, the porous electric layer of 5-, 6- electrode, the porous fluid layer of 7-, 8- cycle fluid.

Specific embodiment

In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below Not constituting a conflict with each other can be combined with each other.

A kind of device to be generated electricity using body temperature that embodiment 1 provides, structure is as shown in Figure 1, include staggered relatively Arc heat collector panel 1, arc heat sink 2, two blocks of side plates, 3, two pieces of bottom plates 4, porous electric layer 5, electrode 6, porous fluid layer 7, Cycle fluid 8;

There are two pieces of arc side plates 3 and two pieces of bottom plates 4 between heat collector panel 1 and heat sink 2;2, two pieces of heat collector panel 1, heat sink sides Plate 3 and two pieces of bottom plates 4 form an airtight cavity;One layer of porous electric layer is close in the inside opposite with heat sink 2 on heat collector panel 1 5, porous electric layer both ends are equipped with electrode 6, have opening on side plate 3, electrode 6 can be drawn by the aperture;It is on heat sink 2 and poly- One layer of porous fluid layer 7 is close in the opposite inside of hot plate 1, is infiltrated inside porous fluid layer 7 by liquid circulation working medium 8, porous to lead It is close to the end of porous electric layer 5 in the both ends of liquid layer.

In the present embodiment, heat collector panel 1, heat sink 2, side plate 3, porous electric layer 5 and porous fluid layer 7 are arc knot Structure, so that the whole arc-shaped Bracelet structure of the power generator, can directly be worn at wrist or arm, porous electric layer 5 is adopted Use nano-porous materials;When not being worn on human body, nanoporous electric layer 5 absorbs liquid circulation work from um porous fluid layer Matter is to complete wetting;When being worn on human body, for heat collector panel 1 from absorption of human body heat, heat transfer is more to abutting heat sink 2 Hole electric layer 5, the cycle fluid 8 in porous electric layer 5 is from porous 5 surface evaporation of electric layer, while under the action of capillary force It drives the cycle fluid inside porous electric layer 5 to flow from lower end toward upper end, is existed by the electrokinetic phenomenon in nano-porous materials The upper and lower ends of porous electric layer 5 generate potential and export electric energy, and electric energy is exported by electrode 6;And it is evaporated from porous electric layer 5 Cycle fluid be converted to gaseous state, and discharge heat at heat sink 2 and condense into liquid, and be transmitted back to by porous fluid layer 7 Working medium circulation is realized in the lower end of porous electric layer 5;Therefore the device is continuously generated electricity using body temperature.

The device provided in this embodiment to be generated electricity using body temperature, by 2, two blocks of heat collector panel 1, heat sink side plates 3 and two The airtight cavity that block bottom plate 4 is formed can be run under normal pressure, and also vacuum-pumping is run under low pressure.The power generator thermoelectricity capability Quality depend on selected nanometer generating layer material property and structure, the type of cycle fluid and inside cavity environmental pressure it is comprehensive Group photo is rung, and porous electric layer is accumulated using the carbon nano-particle that diameter is 30nm~40nm in the present embodiment, carbon nanometer The surface eletrokinetic potential of grain is -28mV;The cycle fluid that the present embodiment uses is deionized water;The intracorporal pressure of closed chamber is 4kpa。

This device using body temperature power generation that embodiment provides is tested, is 21 DEG C of conditions in environment temperature Under, which exports thermoelectric voltage up to 1V;The capacitor of a 1 μ F can be charged to 0.8V within 50s, can be used for being micro- Electronics.

As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include Within protection scope of the present invention.

Claims (7)

1. a kind of device to be generated electricity using body temperature, which is characterized in that including heat collector panel (1), heat sink (2), two blocks of side plates (3), two pieces of bottom plates (4), porous electric layer (5), electrode (6), porous fluid layer (7) and cycle fluid (8);
The heat collector panel (1) passes through two pieces of side plates (3) with the both ends of heat sink (2) respectively and connect, heat collector panel (1), heat sink (2), two pieces of side plates (3) and two pieces of bottom plates (4) form an airtight cavity;
The porous electric layer (5) is tightly attached to the inside of heat collector panel (1), and the both ends of porous electric layer (5) are equipped with electrode (6);Side There is the aperture for extraction electrode (6) on plate (3);
The porous fluid layer (7) is close to the inside of heat sink (2), and the end of porous electric layer (5) is close at both ends;It is porous to lead Liquid layer (7) is infiltrated by cycle fluid (8);
When described device is not worn on human body, the porous electric layer (5) is from porous fluid layer (7) the absorption cycle work Matter is to complete wetting;When described device is worn on human body, the heat collector panel (1) from absorption of human body heat, give by heat transfer It is close to the porous electric layer (5) of the heat collector panel (1), the cycle fluid in the porous electric layer (5) is from described porous Electric layer (5) surface evaporation, while the cycle fluid for driving the porous electric layer (5) internal under the action of capillary force is in institute Flowing in porous electric layer (5) is stated, generate potential at porous electric layer (5) both ends and exports electric energy, electric energy passes through described Electrode (6) export.
2. utilizing the device of body temperature power generation as described in claim 1, which is characterized in that the heat collector panel (1), heat sink (2), side plate (3), porous electric layer (5) and porous fluid layer (7) are arcuate structure, so that described generated electricity using body temperature The whole arc-shaped shape of device.
3. utilizing the device of body temperature power generation as claimed in claim 1 or 2, which is characterized in that outside the heat sink (2) Side has the fin structure of enhancing heat dissipation.
4. utilizing the device of body temperature power generation as described in claim 1, which is characterized in that the heat collector panel (1) and heat dissipation Plate (2) is highly heat-conductive material, and heat collector panel (1) and heat sink (2) opposite side are all made of electrically insulating material;Bottom plate (4), side plate (3) electrical isolation and heat insulator are all made of.
5. utilizing the device of body temperature power generation as described in claim 1, which is characterized in that the porous electric layer (5) is adopted With integrally formed nano-porous materials, or the nano-porous materials made of being accumulated as nano particle.
6. utilizing the device of body temperature power generation as described in claim 1, which is characterized in that the porous fluid layer (7) is adopted With um porous material.
7. utilizing the device of body temperature power generation as described in claim 1, which is characterized in that the 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)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510820821.4A CN106787947B (en) 2015-11-24 2015-11-24 A kind of device to be generated electricity using body temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510820821.4A CN106787947B (en) 2015-11-24 2015-11-24 A kind of device to be generated electricity using body temperature

Publications (2)

Publication Number Publication Date
CN106787947A CN106787947A (en) 2017-05-31
CN106787947B true CN106787947B (en) 2018-12-07

Family

ID=58963347

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510820821.4A CN106787947B (en) 2015-11-24 2015-11-24 A kind of device to be generated electricity using body temperature

Country Status (1)

Country Link
CN (1) CN106787947B (en)

Citations (5)

* 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
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
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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104578978B (en) * 2015-01-15 2019-04-12 苏州荷达新能源技术有限公司 A kind of portable wearable temperature difference electricity generation device
CN104811092B (en) * 2015-05-19 2017-05-31 武汉大学 A kind of system generated electricity using liquid pyroelectric effect

Patent Citations (5)

* 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
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
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

Also Published As

Publication number Publication date
CN106787947A (en) 2017-05-31

Similar Documents

Publication Publication Date Title
Ni et al. Steam generation under one sun enabled by a floating structure with thermal concentration
Yang et al. A flexible, stretchable and shape‐adaptive approach for versatile energy conversion and self‐powered biomedical monitoring
Chun et al. Boosted output performance of triboelectric nanogenerator via electric double layer effect
Wang et al. Flow‐driven triboelectric generator for directly powering a wireless sensor node
Wang et al. Hybridized electromagnetic–triboelectric nanogenerator for scavenging air-flow energy to sustainably power temperature sensors
Wang et al. Efficient scavenging of solar and wind energies in a smart city
Yang et al. Broadband vibrational energy harvesting based on a triboelectric nanogenerator
Lin et al. Enhanced triboelectric nanogenerators and triboelectric nanosensor using chemically modified TiO2 nanomaterials
Hashim et al. Model for geometry optimisation of thermoelectric devices in a hybrid PV/TE system
Chen et al. Enhanced cooling for LED lighting using ionic wind
Lin et al. Harvesting water drop energy by a sequential contact‐electrification and electrostatic‐induction process
Moon et al. Electrical power generation by mechanically modulating electrical double layers
Liang et al. Highly transparent triboelectric nanogenerator for harvesting water-related energy reinforced by antireflection coating
Said et al. Energy and exergy analysis of a flat plate solar collector using different sizes of aluminium oxide based nanofluid
He et al. Theoretical and experimental investigation on a thermoelectric cooling and heating system driven by solar
Deng et al. Enhanced performance of solar-driven photovoltaic–thermoelectric hybrid system in an integrated design
Dai et al. Liquid metal based thermoelectric generation system for waste heat recovery
Du et al. A Three Dimensional Multi‐Layered Sliding Triboelectric Nanogenerator
Cha et al. Sound‐driven piezoelectric nanowire‐based nanogenerators
He et al. A study on incorporation of thermoelectric modules with evacuated-tube heat-pipe solar collectors
Liang et al. Performance evaluation of new type hybrid photovoltaic/thermal solar collector by experimental study
Gou et al. Modeling, experimental study and optimization on low-temperature waste heat thermoelectric generator system
Moradgholi et al. Application of heat pipe in an experimental investigation on a novel photovoltaic/thermal (PV/T) system
Siddique et al. A review of the state of the science on wearable thermoelectric power generators (TEGs) and their existing challenges
Chandrasekar et al. Passive cooling of standalone flat PV module with cotton wick structures

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant