CN107046092A - Wearable thermoelectric generator with engraved structure substrate and preparation method thereof - Google Patents
Wearable thermoelectric generator with engraved structure substrate and preparation method thereof Download PDFInfo
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- CN107046092A CN107046092A CN201710125445.6A CN201710125445A CN107046092A CN 107046092 A CN107046092 A CN 107046092A CN 201710125445 A CN201710125445 A CN 201710125445A CN 107046092 A CN107046092 A CN 107046092A
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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
- H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
- H10N10/17—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the structure or configuration of the cell or thermocouple forming the device
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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
- H10N10/01—Manufacture or treatment
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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
- H10N19/00—Integrated devices, or assemblies of multiple devices, comprising at least one thermoelectric or thermomagnetic element covered by groups H10N10/00 - H10N15/00
- H10N19/101—Multiple thermocouples connected in a cascade arrangement
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- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The invention discloses a kind of Wearable thermoelectric generator with engraved structure substrate and preparation method thereof.The hot junction face of thermoelectric block body array and the copper electrode of flexible printed circuit board are connected, and cold end face is connected with copper current-conducting piece；Thermoelectric block body array passes through copper electrode and the series connection of cold end copper current-conducting piece composition or connection in series-parallel.Its preparation method, including flexible printed circuit board make and solder-coated, positioning and welding, the positioning of cold end copper current-conducting piece and the solder-coated of thermoelectric block body, the step such as thermoelectric generator cold end erection welding.The circuit board of the present invention adds the flexibility of Wearable thermoelectric generator, change the line number of thermoelectric block body array and often go in thermoelectric block body number, meet the demand of different driving device；P-type is avoided using thermoelectric block body location-plate and N-type thermoelectric block body is moved in welding process, it is ensured that the good contact with conductive electrode.Cold end copper current-conducting piece is positioned using 3 D-printing, makes thermoelectric block body and cold end copper current-conducting piece position corresponding accurate, and contact is good.
Description
Technical field
The present invention relates to thermoelectric power generation device and preparation method thereof, more particularly, to a kind of wearing with engraved structure substrate
Wear formula thermoelectric generator and preparation method thereof.
Background technology
Current Wearable electronic device is widely used in the monitoring of human body physical sign, the collection of physical activity data and mobile intelligence
It can apply.Existing Wearable electronic device is mainly energized using lithium battery, and cruising time is limited, limits Wearable electronics device
The use scope of part；Meanwhile, waste lithium cell is easily polluted to environment.Thermoelectric generator is based on Seebeck effect, collects
Heat energy is simultaneously converted to electric energy, and human body has lasting heat exchange with surrounding environment, and therefore, thermoelectric generator can utilize people
The temperature difference that body exists with environment is generated electricity, and is that Wearable electronic device is persistently energized.
Traditional thermoelectric generator outer side covers rigid insulation ceramic wafer, when being worn on human body, between ceramic wafer and skin
Gap can increase thermal resistance, reduce the output performance of thermoelectric generator.And the flexible thermoelectric generator radius of curvature that can fit is different
Surface, and the impact failure of human motion or external vibration to thermoelectric generator can be reduced, it is more suitable for Wearable electronic device
Energize application scenario.
At present, the main manufacturing processes of flexible thermoelectric generator are physically or chemically depositing operation and silk-screen printing agglomerant
Skill.Physically or chemically the thermoelectric arm film internal resistance of depositing operation processing is big, and power output is relatively low, and micro-nano process equipment is high
Expensive, manufacturing cost is high and the cycle is long, is unfavorable for large-scale production.The thermoelectric arm of silk-screen printing sintering process uses thermoelectric material powder
End and the mixed slurry of organic bond are processed, and the addition of organic bond makes the thermoelectric arm performance of making be less than thermoelectric material
The thermoelectric arm of direct forming processing, therefore output performance is less than conventional rigid thermoelectric generator.
The content of the invention
Based on county is asked present in above-mentioned background technology, there is engraved structure substrate it is an object of the invention to provide one kind
Wearable thermoelectric generator and preparation method thereof, the flexibility of thermoelectric generator can be improved, reduce technological operation difficulty and
Equipment requirement, while improving the output performance of device.
The technical solution adopted by the present invention is as follows：
First, a kind of Wearable thermoelectric generator with engraved structure substrate：
The present invention is faced out from wearing, successively including flexible printed circuit board, thermoelectric block body array and cold end copper current-conducting piece；Thermoelectricity
Above the copper electrode that the hot junction face of block array passes through middle temperature solder and flexible printed circuit board connect, thermoelectric block body array it is cold
End face is by solder with being connected below cold end copper current-conducting piece；Thermoelectric block body array has a m rows, and m is even number and m >=2,
Every p-type and N-type thermoelectric block body of the row containing four pairs and dimensions above and number all same, it is flexible that thermoelectric block body array passes through hot junction
Copper electrode and cold end copper current-conducting piece the composition series connection of printed circuit board (PCB) or series parallel structure.
The flexible printed circuit board has engraved structure, and the quantity of engraved structure is according to the thermoelectric row for designing needs
Depending on number, thermoelectric block body number and size.
2nd, a kind of preparation method of the Wearable thermoelectric generator with engraved structure substrate, comprises the following steps：
1) according to wearing occasion and the job requirement of external drive device, thermoelectric generator thermoelectric block body logarithm n and P, N-type are determined
The size of thermoelectric block body, n p-type and N-type thermoelectric block body are respectively cut into by the p-type shaped and N-type thermoelectric material, and n >=
8；
2) flexible printed circuit board and solder-coated half tone with engraved structure are made, the half tone position of opening prints with flexible
The copper electrode position correspondence of printed circuit board, is scratched middle temperature solder in flexibility by solder-coated half tone using silk-screen printing technique
On printed circuit board (PCB)；
3) flexible printed circuit board for being coated with middle temperature solder is fixed on the bottom plate with screw, and bottom plate installs positioning stud additional
And packing ring；Make perforate on thermoelectric block body location-plate, the location-plate and correspond to thermoelectric block body and positioning stud position respectively, by heat
Electric block location-plate is covered on flexible printed circuit board；N N-type thermoelectric block body and n p-type thermoelectric block body are passed through into thermoelectricity block
Body location-plate is alternately disposed in the position that solder is had been coated with flexible printed circuit board；
4) install cover plate blending bolt additional in n exposed N-type thermoelectric block body and n p-type thermoelectric block body upper end and screw, welded
Connect；Cover plate, bottom plate and thermoelectric block body location-plate are removed after cooling, thermoelectric generator hot junction part is obtained；
5) sanding and polishing cold end copper current-conducting piece, positions cold end copper current-conducting piece, and use polyimides glue using the mould of 3 D-printing
Band is adhesively fixed；
6) step 2 is used) identical silk-screen printing technique coating solder；
Wherein step 2) ~ 4) and step 5) ~ 6) carried out simultaneously, or separate and successively carry out；
7) by the exposed while placement of the thermoelectric block body when correspondence hot junction part of cold end copper current-conducting piece coating solder；Plus
Capping plate blending bolt is screwed, and is welded；
8) cover plate and bottom plate are removed after cooling down；Kapton Tape is removed using alcohol solution dipping, Wearable temperature difference hair is obtained
Electrical equipment.
The flexible printed circuit board base material is polyimides, and N-type thermoelectric block body material is doped bismuth telluride base heat
Electric material, p-type thermoelectric block body material is doped bismuth telluride base thermoelectricity material.
The thermoelectric material forming technology is molten area, hot pressing or discharge plasma sintering, and thermoelectric block body cutting technique is line
Cutting.
The solder-coated thickness of the thermoelectric generator is 0.05 ~ 0.15 mm.
Being welded in vacuum furnace for the thermoelectric generator is carried out.
The middle temperature solder is Sn96.5Ag3Cu0.5, welding temperature is 260 DEG C, and weld interval is 3 minutes；Solder is
Sn48Bi52, welding temperature is 180 DEG C, and weld interval is 3 minutes.
The invention has the advantages that：
Flexible printed circuit board of the present invention with engraved structure substrate adds the flexibility of Wearable thermoelectric generator, can be many
Individual Direction distortion；Thermoelectric block body number in by changing the line number of thermoelectric block body array and often going, can meet different driving
The application demand of device.In preparation method, p-type is avoided using thermoelectric block body location-plate and N-type thermoelectric block body was being welded
Moved in journey, it is ensured that the good contact with conductive electrode.Cold end copper current-conducting piece is positioned and Kapton Tape using 3 D-printing
It is fixed, make thermoelectric block body and cold end copper current-conducting piece position corresponding accurate, contact is good.The application scenario of thermo-electric device has been widened,
Improve the use occasion of Wearable thermoelectric power generation device.
Brief description of the drawings
Fig. 1 is the schematic diagram of the flexible thermoelectric generator of the present invention.
Fig. 2 is the manufacturing process flow schematic diagram of the present invention
Fig. 3 is the flexible printed circuit board schematic diagram with engraved structure.
Fig. 4 is the flexible printed circuit board schematic diagram for coating middle temperature solder.
Fig. 5 is thermoelectric block body location-plate schematic diagram.
Fig. 6 is the exploded perspective view of flexible thermoelectric generator hot junction part assembling.
Fig. 7 is the schematic diagram for the flexible thermoelectric generator hot junction part that present invention manufacture is obtained.
Fig. 8 is the cold end copper current-conducting piece schematic diagram that Kapton Tape is fixed
Fig. 9 is the cold end copper current-conducting piece schematic diagram for coating solder.
Figure 10 is the exploded perspective view of flexible thermoelectric generator cold end assembling.
In figure：1st, flexible printed circuit board, 2, engraved structure, 3, thermoelectric block body array, 4, cold end copper current-conducting piece, 5, polyamides
Imido grpup bottom, 6, copper electrode, 7, middle temperature solder, 8, thermoelectric block body location-plate, 9, bottom plate, 10, p-type thermoelectric block body, 11, N-type heat
Electric block, 12, cover plate, 13, Kapton Tape, 14, solder.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
As shown in figure 1, the present invention faced out from wearing, successively including the flexible printed circuit board 1 with engraved structure 2,
Thermoelectric block body array 3 and cold end copper current-conducting piece 4；The hot junction face of thermoelectric block body array 3 passes through middle temperature solder and flexible print circuit
The copper electrode upper strata connection of plate 1, the cold end face of thermoelectric block body array 3 is connected by the lower floor of solder and cold end copper current-conducting piece 4
Connect；Thermoelectric block body array 3 has m rows, and m is even number, and m >=2, often P of the row containing four pairs and dimensions above and number all same
Type and N-type thermoelectric block body, thermoelectric block body array are made up of the copper electrode and cold end copper current-conducting piece of hot junction flexible printed circuit board
It is cascaded structure in series connection or series parallel structure, such as Fig. 1.
The flexible printed circuit board 1 has engraved structure 2, and the quantity of engraved structure 2 is according to the thermoelectricity battle array for designing needs
Depending on row line number, thermoelectric block body number and size.
The preparation method that the present invention is provided, specifically, makes and solder the invention mainly comprises flexible printed circuit board
Coating, positioning and welding, the positioning of cold end copper current-conducting piece and the solder-coated of thermoelectric block body, thermoelectric generator cold end erection welding is several
Big step.As shown in Fig. 2 the situation of the coating progress simultaneously for middle temperature solder and solder.
First, flexible printed circuit board makes and solder-coated
P-type and N-type thermoelectric block body material of the present invention is doped bismuth telluride base thermoelectricity material, and p-type thermoelectric block body material composition is
Bi0.5Sb1.5Te3, N-type thermoelectric block body material composition is Bi2Se0.5Te2.5.Thermoelectric arm logarithm n elects 24 pairs as.Zone-melting process is shaped
P-type and N-type thermoelectric material by linear cutter be square thermoelectric block body, block bottom surface be length of side 1.15mm pros
Shape, a height of 1.2mm；Two end faces that the copper electrode and cold end copper current-conducting piece of thermoelectric block body and flexible printed circuit board 1 are welded are equal
Nickel plating is tin plating.
As shown in figure 3, the flexible printed circuit board 1 with engraved structure is made, the thickness selection 25 of polyimide substrate 5
μm, the thickness of copper electrode 6 is 17.5 μm.Make the thick solder-coated half tones of 0.12mm, perforate and the flexibility of solder-coated half tone
The position of copper electrode 6 correspondence of printed circuit board (PCB) 1.Unleaded middle temperature solder 7 selection fusing point is 217 DEG C of Sn96.5Ag3Cu0.5.To nothing
After the middle temperature solder 7 of lead is sufficiently stirred for, solder is coated on flexible printed circuit board 1 by half tone with metallic spatula, such as Fig. 4
It is shown.
2nd, the positioning of thermoelectric block body and thermoelectric generator hot junction are welded
It is coated with the flexible printed circuit board 1 of solder to be fixed on the bottom plate 9 with screw, installs positioning stud additional and thickness is
0.5mm packing ring.Make thermoelectric block body location-plate 8, the perforate correspondence thermoelectric block body of thermoelectric block body location-plate 8 and positioning stud position
Put, as shown in Figure 5.Thermoelectric block body location-plate 8 is covered on flexible printed circuit board 1 by positioning stud, and by 24 N-types
Thermoelectric block body 11 and 24 p-type thermoelectric block bodies 10 are alternately disposed on flexible printed circuit board 1 by thermoelectric block body location-plate 8.
After the completion of 24 pairs of N-type thermoelectric block bodies 11 and p-type thermoelectric block body 10 are placed, cover plate 12,12 pairs of cover plate are installed additional in thermoelectric block body upper end
Answer stud position to be provided with circular hole, stud is stretched out by circular hole, compressed cover plate 12 with bottom plate 9 with nut.Fig. 6 is flexible temperature difference hair
Electrical equipment hot junction assemble welding explosive view.
The structure assembled after compressing is put into heating furnace and vacuumized, is welded 3 minutes at 260 DEG C.Treat that vacuum drying oven is cooled down
Afterwards, the structure taking-up clamped will be assembled, pulls down cover plate 12, bottom plate 9 and thermoelectric block body location-plate 8, obtain thermoelectric generator hot junction
Part, as shown in Figure 7.
3rd, the positioning of cold end conducting strip and solder-coated
The cold end copper current-conducting piece 4 that thickness is 0.3mm is made, sanding and polishing removes the greasy dirt and oxide layer on surface.Beaten using three-dimensional
Locating slot corresponding with thermoelectric arm position is provided with print processing cold end copper current-conducting piece mould, mould, cold end copper current-conducting piece is placed
It is adhesively fixed in locating slot, and with the Kapton Tape 13 of 50 μ m-thicks, as shown in Figure 8.
The thick solder-coated half tones of 0.12mm are made, the perforate of half tone is corresponding with the position of cold end copper current-conducting piece 4.It is unleaded low
The warm selection of solder 14 fusing point is 138 DEG C of Sn48Bi52.Unleaded solder 14 is sufficiently stirred for, passed through solder with scraper
Half tone is coated on cold end copper current-conducting piece 4, as shown in Figure 9.
4th, the welding of thermoelectric generator cold end and assembling
The thermoelectric block body for being coated with the cold end copper current-conducting piece correspondence thermoelectric generator hot junction part of solder is placed；Led in cold end copper
The side that electric piece pastes Kapton Tape 13 installs cover plate additional, and cover plate correspondence stud position is provided with circular hole, and stud is stretched by circular hole
Go out, compressed cover plate and bottom plate with nut.Figure 10 is flexible thermoelectric generator cold end assemble welding explosive view.
The structure for assembling compression is put into heating furnace, vacuumized, and is welded 3 minutes at 180 DEG C.It is cooled to after normal temperature,
Cover plate 12 and bottom plate 9 are pulled down, the part being welded is soaked 10 minutes in ethanol solution, Kapton Tape 13 is taken off, obtains
To flexible thermoelectric generator.
The present invention is passed through by proposing a kind of Wearable thermoelectric generator with engraved structure substrate and preparation method thereof
Make thermoelectric generator that there is good flexibility using the flexible printed circuit board with hollow out, and in hot junction, processing uses thermoelectricity
Block location-plate is positioned to thermoelectric block body, and cold end copper current-conducting piece is positioned and polyimides glue using 3 D-printing when cold end is processed
Band is fixed, ensure that the good contact of thermoelectric block body and conductive electrode.So that the flexible thermoelectric generator output performance of manufacture
It is higher, and the power output of thermoelectric generator can be lifted by increasing thermoelectric block body logarithm, expand answering for Wearable device
Use occasion.
What is finally illustrated is：Above example only not limits technical side described in the invention to illustrate the present invention
Case, therefore, although this specification with reference to each above-mentioned embodiment to present invention has been detailed description, ability
Domain it is to be appreciated by one skilled in the art that still can be modified to the present invention or equivalent substitution, and all do not depart from this hair
The technical scheme of bright spirit and scope and its improvement, it all should cover in scope of the presently claimed invention.
Claims (8)
1. a kind of Wearable thermoelectric generator with engraved structure substrate, it is characterised in that：Face out, include successively from wearing
Flexible printed circuit board (1), thermoelectric block body array (3) and cold end copper current-conducting piece (4)；The hot junction face of thermoelectric block body array (3) leads to
Warm solder is crossed with being connected above the copper electrode of flexible printed circuit board (1), the cold end face of thermoelectric block body array (3) passes through low temperature
Solder below cold end copper current-conducting piece (4) with being connected；Thermoelectric block body array (3) has m rows, and m is even number and m >=2, often goes and contains
There are the p-type and N-type thermoelectric block body of four pairs and dimensions above and number all same, thermoelectric block body array (3) is printed by hot junction flexibility
Copper electrode and cold end copper current-conducting piece (4) the composition series connection of printed circuit board (1) or series parallel structure.
2. a kind of Wearable thermoelectric generator with engraved structure substrate according to claim 2, it is characterised in that：Institute
Flexible printed circuit board (1) is stated with engraved structure (2), the quantity of engraved structure (2) is according to the thermoelectric row for designing needs
Depending on number, thermoelectric block body number and size.
3. it is used for a kind of preparation method of Wearable thermoelectric generator with engraved structure substrate described in claim 1, its
It is characterised by, comprises the following steps：
1) according to wearing occasion and the job requirement of external drive device, thermoelectric generator thermoelectric block body logarithm n and P, N-type are determined
The size of thermoelectric block body, n p-type and N-type thermoelectric block body are respectively cut into by the p-type shaped and N-type thermoelectric material, and n >=
8；
2) flexible printed circuit board and solder-coated half tone with engraved structure are made, the half tone position of opening prints with flexible
The copper electrode position correspondence of printed circuit board, is scratched middle temperature solder in flexibility by solder-coated half tone using silk-screen printing technique
On printed circuit board (PCB)；
3) flexible printed circuit board for being coated with middle temperature solder is fixed on the bottom plate with screw, and bottom plate installs positioning stud additional
And packing ring；Make perforate on thermoelectric block body location-plate, the location-plate and correspond to thermoelectric block body and positioning stud position respectively, by heat
Electric block location-plate is covered on flexible printed circuit board；N N-type thermoelectric block body and n p-type thermoelectric block body are passed through into thermoelectricity block
Body location-plate is alternately disposed in the position that solder is had been coated with flexible printed circuit board；
4) install cover plate blending bolt additional in n exposed N-type thermoelectric block body and n p-type thermoelectric block body upper end and screw, welded
Connect；Cover plate, bottom plate and thermoelectric block body location-plate are removed after cooling, thermoelectric generator hot junction part is obtained；
5) sanding and polishing cold end copper current-conducting piece, positions cold end copper current-conducting piece, and use polyimides glue using the mould of 3 D-printing
Band is adhesively fixed；
6) step 2 is used) identical silk-screen printing technique coating solder；
Wherein step 2) ~ 4) and step 5) ~ 6) carried out simultaneously, or separate and successively carry out；
7) by the exposed while placement of the thermoelectric block body when correspondence hot junction part of cold end copper current-conducting piece coating solder；Plus
Capping plate blending bolt is screwed, and is welded；
8) cover plate and bottom plate are removed after cooling down；Kapton Tape is removed using alcohol solution dipping, Wearable temperature difference hair is obtained
Electrical equipment.
4. method according to claim 3, it is characterised in that：The flexible printed circuit board base material is that polyamides is sub-
Amine, N-type thermoelectric block body material is doped bismuth telluride base thermoelectricity material, and p-type thermoelectric block body material is doped bismuth telluride base thermoelectricity material
Material.
5. method according to claim 3, it is characterised in that：The thermoelectric material forming technology is molten area, hot pressing or put
Electric plasma agglomeration, thermoelectric block body cutting technique is wire cutting.
6. method according to claim 3, it is characterised in that：The solder-coated thickness of the thermoelectric generator be 0.05 ~
0.15 mm。
7. method according to claim 3, it is characterised in that：The thermoelectric generator is welded in vacuum furnace
OK.
8. the method according to claim 3 or 7, it is characterised in that：The middle temperature solder is Sn96.5Ag3Cu0.5, welding temperature
Spend for 260 DEG C, weld interval is 3 minutes；Solder is Sn48Bi52, welding temperature is 180 DEG C, and weld interval is 3 minutes.
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| CN201710125445.6A CN107046092B (en) | 2017-03-04 | 2017-03-04 | Wearable thermoelectric generator and preparation method thereof with engraved structure substrate |
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Cited By (11)
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| CN108305935A (en) * | 2018-02-08 | 2018-07-20 | 南方科技大学 | Flexible thermo-electric device and preparation method |
| CN109894712A (en) * | 2019-02-26 | 2019-06-18 | 摩比科技（深圳）有限公司 | A kind of welding method of welding fixture and resonator |
| CN110265538A (en) * | 2019-05-30 | 2019-09-20 | 清华大学 | Flexible thermoelectric generator and its preparation method and application system |
| WO2019196510A1 (en) * | 2018-04-10 | 2019-10-17 | 深圳光启尖端技术有限责任公司 | Manufacturing method for flexible thermoelectric device and flexible thermoelectric device resulting from said method |
| CN110474570A (en) * | 2019-09-16 | 2019-11-19 | 桂林电子科技大学 | A kind of thermoelectric generator and preparation method thereof with flexible extendable structure |
| CN111403589A (en) * | 2020-03-27 | 2020-07-10 | 华中科技大学 | Method and die for manufacturing thermoelectric material with trapezoidal boss structure |
| CN112349827A (en) * | 2020-11-06 | 2021-02-09 | 哈尔滨工业大学（深圳） | Wearable body temperature power generation module for continuous energy supply and preparation method |
| CN112751507A (en) * | 2020-12-10 | 2021-05-04 | 重庆大学 | Wearable human body thermoelectric generator based on galvanic couple framework and organic pouring and curing |
| WO2021112873A1 (en) * | 2019-12-06 | 2021-06-10 | 3M Innovative Properties Company | Flexible thermoelectric device |
| CN113517384A (en) * | 2021-07-08 | 2021-10-19 | 西安电子科技大学 | Stretchable flexible thermoelectric device and manufacturing method thereof |
| CN113595443A (en) * | 2020-04-30 | 2021-11-02 | 斯沃奇集团研究及开发有限公司 | Power indicator device for a thermoelectric generator of a watch |
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| CN110265538A (en) * | 2019-05-30 | 2019-09-20 | 清华大学 | Flexible thermoelectric generator and its preparation method and application system |
| CN110474570A (en) * | 2019-09-16 | 2019-11-19 | 桂林电子科技大学 | A kind of thermoelectric generator and preparation method thereof with flexible extendable structure |
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| WO2021112873A1 (en) * | 2019-12-06 | 2021-06-10 | 3M Innovative Properties Company | Flexible thermoelectric device |
| EP4070389A4 (en) * | 2019-12-06 | 2023-08-30 | 3M Innovative Properties Company | Flexible thermoelectric device |
| CN111403589B (en) * | 2020-03-27 | 2021-11-19 | 华中科技大学 | Method and die for manufacturing thermoelectric material with trapezoidal boss structure |
| CN111403589A (en) * | 2020-03-27 | 2020-07-10 | 华中科技大学 | Method and die for manufacturing thermoelectric material with trapezoidal boss structure |
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| CN112349827A (en) * | 2020-11-06 | 2021-02-09 | 哈尔滨工业大学（深圳） | Wearable body temperature power generation module for continuous energy supply and preparation method |
| CN112751507A (en) * | 2020-12-10 | 2021-05-04 | 重庆大学 | Wearable human body thermoelectric generator based on galvanic couple framework and organic pouring and curing |
| CN113517384B (en) * | 2021-07-08 | 2022-11-08 | 西安电子科技大学 | Stretchable flexible thermoelectric device and manufacturing method thereof |
| CN113517384A (en) * | 2021-07-08 | 2021-10-19 | 西安电子科技大学 | Stretchable flexible thermoelectric device and manufacturing method thereof |
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