CN204304843U - A kind of thermo-electric generation structure of flexible self-supporting type - Google Patents
A kind of thermo-electric generation structure of flexible self-supporting type Download PDFInfo
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- CN204304843U CN204304843U CN201420750713.5U CN201420750713U CN204304843U CN 204304843 U CN204304843 U CN 204304843U CN 201420750713 U CN201420750713 U CN 201420750713U CN 204304843 U CN204304843 U CN 204304843U
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- 239000000758 substrate Substances 0.000 claims abstract description 29
- 230000004888 barrier function Effects 0.000 claims abstract description 13
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- 239000004205 dimethyl polysiloxane Substances 0.000 claims abstract description 10
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract description 10
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims abstract 2
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 claims abstract 2
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 claims abstract 2
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 229910052797 bismuth Inorganic materials 0.000 description 3
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 3
- XSOKHXFFCGXDJZ-UHFFFAOYSA-N telluride(2-) Chemical compound [Te-2] XSOKHXFFCGXDJZ-UHFFFAOYSA-N 0.000 description 3
- 230000005678 Seebeck effect Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a kind of flexible self-supporting type thermo-electric generation structure.Be bonded with insulating barrier successively from below to up, upper strata textle layers that lower floor's textle layers, flexible film substrate layer and upper bottom surface that bottom surface is stained with lower floor's flexible wire are stained with upper strata flexible wire.The upper and lower end face of thermoelectric arm has all wrapped up the textle layers being stained with flexible wire layer, and textle layers can support thermoelectric arm; In weaving, bond the mode of flexible wire as electric connection layer, the technique of processing electric connection layer is simple; Adopt PDMS as base layer material, because it has lower thermal conductivity and have flexibility, the thermal loss because cross-ventilation and heat transfer bring can be reduced, improve capacity usage ratio; Processing cost is low, manufacturing process is simple, is conducive to producing in enormous quantities; Reliable and stable, quality is little, shock resistance good, as being worn on human body surface, more comfortable; Have highly flexible, curved surface thermal source of well fitting, range of application is more broad, is suitable for various forms of thermal source.
Description
Technical field
The utility model relates to a kind of thermo-electric generation structure, particularly relates to a kind of thermo-electric generation structure of flexible self-supporting type.
Background technology
Along with increasingly sharpening of problem and increasing rapidly of population such as world energy sources crisis, environmental pollutions, the mankind strengthen day by day to the demand of the energy, carry out alternative traditional energy in the urgent need to a kind of novel renewable energy.Thermoelectric generation is a kind of generation mode of environmental protection, the various forms of heat energy such as solar energy, geothermal energy, industrial exhaust heat, human body heat energy can fully utilize by it, transform into the electric energy that can store, directly utilize, there is very great researching value.
Thermo-electric generation is a kind of novel generation mode, it utilizes Seebeck effect to be directly changed into by heat energy as electric energy: when two kinds of different semi-conducting materials (metal) connect into a closed-loop path, their contact is placed on respectively the different place of temperature, a temperature difference is set up at the two ends of device, will produce a voltage, the heat energy of occurring in nature can be converted into electric energy by the thermoelectric generator formed like this.Because thermoelectric power generation device has the following advantages: though, noiselessness simple without moving-member, pollution-free, structure, light, be easy to miniaturized little temperature difference existent condition under just heat energy can be directly changed into electric energy, thermoelectric generation is with a wide range of applications.
The maximum shortcoming of current thermoelectric generator is exactly that conversion efficiency of thermoelectric is low, process equipment is expensive and processing cost is high.Existing commercial thermoelectric generator is rigid device, using pottery or aluminium base as the substrate of support.Rigid device does not have flexibility, when heat source surface out-of-flatness or be not plane when, install and use all be restricted.Pottery, as substrate support thermoelectric material, not only increases thermal loss, too increases construction weight.The general more complicated of processing technology of existing flexible thermoelectric generator, process equipment is expensive, makes it to be not suitable for promoting production in enormous quantities.Therefore, develop that a kind of conversion efficiency is high, processing technology is simple, processing cost is low, there is highly flexible, thermo-electric generation structure that is light, that have self-supporting performance has very large using value.
Utility model content
The purpose of this utility model is the thermo-electric generation structure providing a kind of flexible self-supporting type, and for solving, thermoelectric generator generating efficiency is low, processing technology is complicated, processing cost is high, structural rigidity and the large problem of quality.
The technical solution adopted in the utility model is:
Lower floor's textle layers that the utility model is bonded with insulating barrier from below to up successively, bottom surface is stained with lower floor's flexible wire, flexible film substrate layer and upper bottom surface are stained with the upper strata textle layers of upper strata flexible wire.
Be equally spaced above described flexible film substrate layer N × N even number through hole, P type thermoelectric arm and the N-type thermoelectric arm of interphase distribution is all filled up in every through hole in the ranks, upper strata textle layers and lower floor's textle layers are bonded to one with the upper and lower side of P type thermoelectric arm and N-type thermoelectric arm respectively, the N-type thermoelectric arm lower end conducting making the lower floor's flexible wire in lower floor's textle layers adjacent with the next one with P type thermoelectric arm, the P type thermoelectric arm upper end conducting making the upper strata flexible wire in the textle layers of upper strata adjacent with the next one with N-type thermoelectric arm, the P type thermoelectric arm at every a line edge and the N-type thermoelectric arm at every a line edge are drawn with after wire serial connection respectively.
Described flexible film substrate layer material is PDMS.
Described insulating barrier, lower floor's textle layers, flexible film substrate layer is all identical with upper strata textle layers size.
The beneficial effect that the utility model has is:
1) the upper and lower end face of thermoelectric arm has all wrapped up the textle layers being stained with flexible wire, textle layers has good toughness, can support thermoelectric arm, contrasts other material if pottery and aluminium sheet are as supporting layer, decrease construction weight, reduce the thermal loss at supporting layer simultaneously.
2) employing is in the mode of textle layers outer surface bonding flexible wire as electric connection layer, and the technique of processing electric connection layer is relatively simple.
3) adopt this material of similar PDMS as base layer material, because it has lower thermal conductivity and have flexibility, the thermal loss because cross-ventilation and heat transfer bring can be reduced, improve capacity usage ratio.
4) processing cost is low, manufacturing process is simple, is conducive to producing in enormous quantities.
5) reliable and stable, quality is little, shock resistance good, as being worn on human body surface, more comfortable.
6) have highly flexible, curved surface thermal source of well fitting, range of application is more broad, is suitable for various forms of thermal source.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure exploded perspective view.
Fig. 2 is the axis side views such as the utility model overall structure.
Fig. 3 is the axis side views such as the utility model flexible film substrate layer.
Fig. 4 is the top view of Fig. 2.
Fig. 5 is the B-B cross section view of Fig. 4.
In figure: 1, upper strata flexible wire, 2, upper strata textle layers, 3, P type thermoelectric arm, 4, N-type thermoelectric arm, 5, flexible film substrate, 6, lower floor's flexible wire, 7, lower floor's textle layers, 8, insulating barrier.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, the utility model comprise be bonded with insulating barrier 8 successively from below to up, upper strata textle layers 2 that lower floor's textle layers 7, flexible film substrate layer 5 and upper bottom surface that bottom surface is stained with lower floor's flexible wire 6 are stained with upper strata flexible wire 1.
Be equally spaced above described flexible film substrate layer 5 N × N even number through hole (being 2 × 2 in Fig. 2), all fills up P type thermoelectric arm 3 and the N-type thermoelectric arm 4 of interphase distribution in hole of often working, and often row arrangement is all identical.Upper strata textle layers 2 and lower floor's textle layers 7 are bonded to one with the upper and lower side of P type thermoelectric arm 4 and N-type thermoelectric arm 5 respectively, make the N-type thermoelectric arm 4 lower end conducting that the lower floor's flexible wire 6 in lower floor's textle layers 7 is adjacent with the next one with P type thermoelectric arm 3; The P type thermoelectric arm 3 upper end conducting making the upper strata flexible wire 1 in upper strata textle layers 2 adjacent with the next one with N-type thermoelectric arm 4, the P type thermoelectric arm 3 at every a line edge and the N-type thermoelectric arm 4 at every a line edge are drawn with after wire serial connection respectively, owing in figure being 2 × 2 through holes, so lower floor's flexible wire 6 is by P type thermoelectric arm 3 and the lower end conducting of adjacent N electric arm 4 hot in nature, topping wire directly by edge P type thermoelectric arm 3 and the N-type thermoelectric arm 4 rear extraction of serial connection separately respectively, forms a kind of flexible self-supporting type thermo-electric generation structure.
The exit of upper strata flexible wire 1 is connected with outside, forms electrothermal circuit.The insulating barrier 8 of this structure lower end to be fitted heat source surface, the gradient of heat source temperature and environment temperature can be utilized to generate electricity.
Described lower floor flexible wire 6 and upper strata flexible wire 1 are wrapped in the upper and lower end face of thermoelectric arm respectively, and three is bonded together, and upper and lower textle layers plays the effect supporting thermoelectric arm.
Described flexible film substrate layer 5 material is PDMS.
Described insulating barrier 8, lower floor's textle layers 7, flexible film substrate layer 5 is all identical with upper strata textle layers 2 size.
Operation principle of the present utility model is as follows:
According to Seebeck effect, in the closed-loop path that P type thermoelectric arm and N-type thermoelectric arm form, when thermoelectric arm two ends exist temperature difference, two ends will produce voltage.Because single voltage to thermocouple generation is very low, the mode of " hot road is in parallel, circuit connected in series " therefore, can be adopted, thermoelectric unit be designed to the multipair electrothermal module of many rows thus improve output voltage values.
The bonding arrangement of upper and lower layer flexible wire on textle layers will make: P type thermoelectric arm is connected with upper strata flexible wire with the upper end (i.e. cold junction) of adjacent N-type thermoelectric arm, and N-type thermoelectric arm is connected with lower floor's flexible wire with the lower end (i.e. hot junction) of adjacent P type thermoelectric arm.By above requirement, bond in the relevant position of the outer surface of upper and lower textle layers upper and lower layer flexible wire.What be cut into by textle layers with flexible film substrate layer is in the same size, is all around alignd by upper textle layers cover with flexible film substrate layer upper surface.In like manner, lower textle layers all around aligns with the lower surface of flexible film substrate and covers, and makes upper and lower textle layers cover flexible film substrate layer upper and lower end face.Mixed slurry made by N-type thermoelectric material and P type thermoelectric material and binding agent, successively alternate be filled in flexible film substrate layer often work in hole, often row filling mode is all the same.Permeate upper and lower textle layers during thermoelectricity filled therewith through hole, after solidification, thermoelectric arm upper and lower end face wraps levels textle layers, and wrap the layer of flexible wire being up and down bonded in upper and lower textle layers outer surface, three is bonded to one simultaneously.When this structural base insulating barrier laminating heat source surface, hot-fluid conducts along thermoelectric arm, because thin film flexible basalis thermal conductivity is extremely low, the heat loss caused can greatly reduce, thermoelectric generator cold end surface has cold air to carry out convection current and heat loss through conduction, therefore can form the larger temperature difference at the two ends of P type and N-type thermoelectric arm, this invention utilizes this temperature difference to generate electricity.The flexible thermo-electric generation structure of this self-cradling type compares as the rigid structure of substrate with pottery, silicon, the advantage that the utility model has highly flexible, light, flexible, capacity usage ratio is high, processing technology is simple, processing cost is low, volume is little, various forms of heat source surface such as human body surface can be adapted to, range of application is wider, and adaptability is stronger.
The wherein a kind of preparation process of the utility model in concrete enforcement, specifically comprises:
1, processing flexibility film substrate layer: material is for PDMS (polydimethylsiloxane)
1) adopt 3D printer to print the mould of band micro-boss, mould alcohol, ethanol, deionized water clean up respectively.
2) configure 10:1PDMS solution, be cast in after deaeration process in vacuum tank on the mould of band micro-boss of processing, if also have bubble, then carry out deaeration process.Mould and PDMS are placed on 80 DEG C of insulation 3h in vacuum drying chamber to be cured.After solidification, stick slowly tearing of PDMS with adhesive tape, the PDMS basalis in mould is peeled off, be heated to solidify completely.
2, make and be stained with the textle layers up and down of flexible wire layer: for glass cloth with wrap up in silver-colored flexible wire
Buy commercial glass cloth and wrap up in silver-colored flexible wire, what be cut into by textle layers with flexible film substrate layer is in the same size, covers flexible film substrate layer upper and lower end face.The bonding arrangement of levels flexible wire on upper and lower textle layers will make: the N-type thermoelectric arm upper end upper strata flexible wire that P type thermoelectric arm is adjacent with the next one is connected, and the lower end of the adjacent P type thermoelectric arm that N-type thermoelectric arm is adjacent with the next one is connected with lower floor's flexible wire layer.By above requirement, will silver-colored flexible wire be wrapped up in be cut into the segment of corresponding length, and arrange at the outer surface of upper and lower textle layers and the opposite position of P type thermoelectric arm and N-type thermoelectric arm and bond.
3, thermoelectric layer is processed: thermoelectricity powder is for bismuth telluride powder
Bismuth telluride powder ball mill, as bismuth telluride powder, is worn into 100 object granules, then thermoelectricity powder and vitrified bonding agitator is stirred by purchase vitrified bonding and thermoelectric material.Textle layers lays levels textle layers with aliging of flexible film substrate layer all around, is then injected in the through hole of flexible film substrate layer by mixed slurry with ink-jet printer.Thermoelectricity slurry penetration crosses textle layers and flexible wire fills up through hole, and covers textle layers and flexible wire.After solidification, thermoelectric arm wraps textle layers and flexible wire, and three bonds integrally.
4, insulating barrier is processed: insulating barrier can select PI film or PET film, uses scissors cutting, and size is the same with flexible film substrate layer.Insulating barrier is bonded in bottom the thermoelectric layer processed with binding agent.
5, the overall structure processed being solidified 24h at normal temperatures, is the vacuum drying close annealing solidification 6h of 120 DEG C afterwards in temperature.By this structure insulating layer laminating thermal source as human skin, flexible wire exit, as cold air, is connected external circuit and forms loop, just can utilize the thermo-electric generation between human body and environment by cold end surface contact low-temperature receiver.
Claims (4)
1. a flexible self-supporting type thermo-electric generation structure, is characterized in that: be bonded with insulating barrier (8) from below to up successively, upper strata textle layers (2) that lower floor's textle layers (7), flexible film substrate layer (5) and upper bottom surface that bottom surface is stained with lower floor's flexible wire (6) are stained with upper strata flexible wire (1).
2. a kind of flexible self-supporting type thermo-electric generation structure according to claim 1, it is characterized in that: be equally spaced above described flexible film substrate layer (5) N × N even number through hole, P type thermoelectric arm (3) and the N-type thermoelectric arm (4) of interphase distribution is all filled up in every through hole in the ranks, upper strata textle layers (2) and lower floor's textle layers (7) are bonded to one with the upper and lower side of P type thermoelectric arm (4) and N-type thermoelectric arm (5) respectively, make N-type thermoelectric arm (4) the lower end conducting that the lower floor's flexible wire (6) in lower floor's textle layers (7) is adjacent with the next one with P type thermoelectric arm (3), P type thermoelectric arm (3) the upper end conducting making the upper strata flexible wire (1) in upper strata textle layers (2) adjacent with the next one with N-type thermoelectric arm (4), the P type thermoelectric arm (3) at every a line edge and the N-type thermoelectric arm (4) at every a line edge are drawn with after wire serial connection respectively.
3. a kind of flexible self-supporting type thermo-electric generation structure according to claim 1, is characterized in that: described flexible film substrate layer (5) material is PDMS.
4. a kind of flexible self-supporting type thermo-electric generation structure according to claim 1, it is characterized in that: described insulating barrier (8), lower floor's textle layers (7), flexible film substrate layer (5) is all identical with upper strata textle layers (2) size.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420750713.5U CN204304843U (en) | 2014-12-04 | 2014-12-04 | A kind of thermo-electric generation structure of flexible self-supporting type |
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| CN201420750713.5U CN204304843U (en) | 2014-12-04 | 2014-12-04 | A kind of thermo-electric generation structure of flexible self-supporting type |
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| CN204304843U true CN204304843U (en) | 2015-04-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410331A (en) * | 2014-12-04 | 2015-03-11 | 浙江大学 | Flexible self-supported type thermoelectric power generation structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410331A (en) * | 2014-12-04 | 2015-03-11 | 浙江大学 | Flexible self-supported type thermoelectric power generation structure |
| CN104410331B (en) * | 2014-12-04 | 2017-01-25 | 浙江大学 | Flexible self-supported type thermoelectric power generation structure |
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