CN101170157A - A heat electric module and its making method - Google Patents
A heat electric module and its making method Download PDFInfo
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- CN101170157A CN101170157A CNA2007100317825A CN200710031782A CN101170157A CN 101170157 A CN101170157 A CN 101170157A CN A2007100317825 A CNA2007100317825 A CN A2007100317825A CN 200710031782 A CN200710031782 A CN 200710031782A CN 101170157 A CN101170157 A CN 101170157A
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Abstract
The invention discloses a thermoelectrical module, which includes an N type thermoelectrical material and a P type thermoelectrical material. The N type thermoelectrical material and the P type thermoelectrical material are in thread shape, alternating, and are connected end to end into a W-shaped thermoelectrical wire string. All thermoelectrical wire strings are arranged with certain intervals longitudinally and connected with each other on ends. Solidified concretes are distributed around the thermoelectrical strings. The invention also discloses the method o f manufacturing thermoelectrical module. The invention has the advantages of reliable performance, low material cost, direct welding, no need of additional electrode material, and mass processing production, provides good and firmer basis for afterheat power generation or refrigeration utilizing the thermoelectric module and is good for promoting thermoelectrical technique application and development.
Description
Technical field
The present invention relates to the pyroelectric technology field, relate in particular to a kind of thermoelectric material module and manufacture method thereof.
Background technology
The energy is the basis of the modern life and development, and electric energy is to use the most extensively, also be energy form the most easily.Yet nowadays Fa Dian principal mode remains (fuel) thermal power generation, and the use of these energy has brought easily simultaneously to us, has also brought a problem-pollution that the whole world is paid close attention to.For this reason, since the nineties, the research of energy conversion material (thermoelectric material) becomes a research focus of material science from eighties of last century.
Utilizing electrothermal module to generate electricity is a kind of novel generation mode, do not need to use drive disk assembly, noiselessness, nothing dump thing during work, the same with the application of secondary energy sources such as solar energy, wind energy, water energy, environment is not polluted, and this material property is reliable, and long service life is a kind of environment-friendly material with wide application prospect.If be applied to generating of above-mentioned extensive power plant or general refrigerator, our life will greatly be taken on a new look so, and the sustainable development of national economy is had the important strategic meaning.50～sixties of eighties of last century, people transform mutually at heat energy and electric energy, particularly to an urgent demand of electricity refrigeration aspect, make thermoelectric material be developed rapidly.Since the seventies, because the development of freon refrigeration technology makes that the research of thermoelectric cooling and thermoelectric material is treated coldly, and almost has been absorbed in standstill state.Since the nineties and since fluorine Lyons to environment damage effect generally be familiar with by people, makes the target that pollution-free, muting cold-producing medium then becomes Refrigeration Technique pursuit.Simultaneously, along with the development of computer technology, space technology, superconductor technology and microelectric technique, press for small-sized, static refrigeration and the hard-wired long-life refrigerating plant of energy.Therefore, be applicable to that the thermoelectric material of making this device causes people's great interest again.
At present, through the research of over half a century, thermoelectric generation technology just is being accompanied by the constantly progressive paces of modern science and technology and is coming into our life gradually.Thermoelectric water dispenser, thermoelectric refrigerator and thermoelectric air-conditioning all occur, and are progressively promoting.Thermoelectric refrigerator does not need cold-producing medium and compressor, as long as provide a DC power supply just can freeze.Compare with traditional refrigeration plant, the environmental problem that fluorine Lyons is brought is readily solved at once.Therefore, countries in the world are all stepping up to study thermoelectric transition heat electric material of high efficiency and electrothermal module, so that carry out extensive cogeneration and thermoelectric cooling application.
At present, both at home and abroad its generating efficiency of thermoelectric generator is generally about 5%, and the most about 12%, conversion efficiency of thermoelectric is on the low side.At manufacture view, the domestic and international selected material of thermoelectric generator (module) Bi normally
2Te
3, Sb
2Te
3, its step of preparation technology of conventional bar body heat electricity module is as follows:
1, adopts the discharge plasma sintering stove to carry out sintering, utilize Bi
2Te
3, Sb
2Te
3Prepare the bigger semi-conductor thermoelectric material of Seebeck coefficient;
2, the cutting sintered body becomes needed specification;
3, utilize electrode material (copper or silver) N type and P type semiconductor to be coupled together by welding;
4, the electrode material outside connects anti-oxidant of one deck heat conduction again, as aluminium nitride (AlN);
5, utilize this method that a large amount of N types and P type semiconductor are together in series or parallel, thereby form electrothermal module.
Above-mentioned prior art exists following defective: material B i
2Te
3, Sb
2Te
3, aluminium nitride (AlN) cost of material height, Bi, Te, Sb are toxic heavy metals, easy contaminated environment, and sintering and cutting Bi
2Te
3, Sb
2Te
3The cost height, Bi
2Te
3, Sb
2Te
3The welding difficulty of block and electrode material is difficult to carry out large-scale production; Simultaneously, welding material non-refractory, easily oxidized.Therefore, limit the application of electrothermal module aspect cogeneration and extensive generating, also limited the development of cogeneration and thermoelectric cooling technology.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of dependable performance, cost low, be easy to the electrothermal module processing, can carry out large-scale production, thereby for utilizing electrothermal module to carry out cogeneration or thermoelectric cooling provides better solid foundation, to promote the application and the development of pyroelectric technology.Another object of the present invention is to provide a kind of manufacture method of electrothermal module.
Purpose of the present invention is achieved by the following technical programs:
A kind of electrothermal module provided by the invention comprises N type thermoelectric material and P type thermoelectric material; Described N type thermoelectric material and P type thermoelectric material are thread, mutually alternately and connect successively end to end and constitute " W " type thermoelectric wire string; Described each thermoelectric wire string longitudinal separation is arranged, and interconnects in the termination; Distribute around each thermoelectric wire string to be consolidated with and coagulate body admittedly.Electrothermal module of the present invention adopts thread thermoelectric material as N type and P type thermoelectric material, and the cost of material is low, and can directly weld, and do not need other electrode material, can carry out large-scale processing.Rice makes electrothermal module have higher intensity with coagulating fixedly thermoelectric wire string of body admittedly, and can stop fluids such as water, gas to infiltrate; Make the hot and cold two ends of electrothermal module have certain thermal insulation simultaneously.
For further improving the reliability that insulate between each thermoelectric wire string, be provided with insulating part between adjacent two row's thermoelectric wire strings described in the electrothermal module of the present invention, closely arrange between thermoelectric wire string and the insulating part; Described coagulate admittedly body distribute be cemented in each thermoelectric wire string and insulating part around.
Can adopt the mode of serial or parallel connection to connect between every row's thermoelectric wire string described in the electrothermal module of the present invention.
Another object of the present invention is achieved by the following technical programs:
The manufacture method of the above-mentioned electrothermal module of the present invention may further comprise the steps:
(1) adopt thread thermoelectric material to be woven into silk screen;
(2) each crosspoint in the silk screen is welded;
(3) cut out successively according to the same cornerwise direction of grid, thereby obtain a large amount of thermoelectric wire strings;
(4) each thermoelectric wire string longitudinal separation also fitly is emitted in the mould, the mode with serial or parallel connection connects in the termination between every row's thermoelectric wire string;
(5) injection is used for the solid slurry that coagulates in mould;
(6) just form around each thermoelectric wire string behind the slurry curing and coagulate body admittedly, thereby and the thermoelectric wire string that will arrange is in a large number fixed and become electrothermal module.
In addition, the electrothermal module that manufacture method of the present invention can further obtain described step (6) carries out water-proofing treatment, to obtain better water resistance.
For improving the reliability that insulate between each thermoelectric wire string, also be provided with insulating part between adjacent two row's thermoelectric wire strings in the described step of manufacture method of the present invention (4), closely arrange between thermoelectric wire string and the insulating part.
The described thread thermoelectric material of manufacture method of the present invention has higher Seebeck coefficient, is 〉=10 μ v/k, to obtain better thermoelectricity capability.Can adopt K type thermocouple wire, E type thermocouple wire, J type thermocouple wire, T type thermocouple wire or N type thermocouple wire.
For improving the heat-proof quality of electrothermal module, be added with heat-barrier material in the described slurry of manufacture method of the present invention.
The present invention has following beneficial effect:
(1) the cost of material is low, and can directly weld, and do not need other electrode material, processing easily, can carry out large-scale processing, provide good more and solid foundation more, help promoting the application and the development of pyroelectric technology for utilizing electrothermal module to carry out cogeneration or refrigeration.
(2) adopt slurry curing, can make electrothermal module have higher intensity, and can stop fluids such as water, gas to infiltrate; Make the hot and cold two ends of electrothermal module have certain thermal insulation simultaneously.
Description of drawings
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing:
Fig. 1 is the schematic appearance of embodiment of the invention electrothermal module;
Fig. 2 is the A-A cutaway view (amplification) of Fig. 1;
Fig. 3 is the B-B cutaway view (amplification) of Fig. 1;
Fig. 4 is the discharging schematic diagram of middle thermoelectric wire string embodiment illustrated in fig. 1 and insulating part;
Fig. 5 is the silk screen that weaves in the manufacture method embodiment illustrated in fig. 1 and cuts out schematic diagram;
Fig. 6 is the thermoelectric wire string schematic diagram of cutting out out in the manufacture method embodiment illustrated in fig. 1;
Fig. 7 is thermoelectric wire string and the discharging schematic diagram of insulating part in mould in the manufacture method embodiment illustrated in fig. 1.
Among the figure: thermoelectric wire string 1, N type thermoelectric material 11, P type thermoelectric material 12, insulating part 2 is admittedly coagulate body 3, mould 4
Embodiment
Fig. 1～Figure 7 shows that embodiments of the invention.As shown in Figure 1, the present embodiment electrothermal module comprises thermoelectric wire 1, the insulating part 2 that is made of N type thermoelectric material 11 and P type thermoelectric material 12 and coagulates body 3 admittedly.As shown in Figures 2 and 3, N type thermoelectric material 11 and P type thermoelectric material 12 are thread, mutually alternately and connect successively end to end and constitute " W " type thermoelectric wire string 1, each tie point of a tie point of being separated by in this thermoelectric wire string is located along the same line, therefore the tie point of thermoelectric wire string constitutes two straight lines up and down, and these two straight lines are parallel to each other.Each thermoelectric wire string is vertically arranged, and between every row's thermoelectric wire string or separated by a distance, makes spaced-apart between row and row and does not contact; Perhaps, as shown in Figure 4, be provided with insulating part 2 and closely arrangement between adjacent two row's thermoelectric wire strings 1, insulating part 2 can be porous cloth or atresia cloth.
Adopt the mode of series connection (or in parallel) to connect in the termination between every row's thermoelectric wire string 1.Admittedly coagulate body 3 distribute be cemented in each thermoelectric wire string 1 and insulating part 2 around.
The manufacture method of present embodiment electrothermal module, its step is as follows:
(1) as shown in Figure 5, adopt thread thermoelectric material to be woven into silk screen, mesh can be that the length of side is rhombus, rectangle, tetragonality or the type hole, four limits of 0.01～50mm.The thread thermoelectric material that uses has higher Seebeck coefficient, is 〉=10 μ v/k.Can adopt K type thermocouple wire (is the thermocouple wire that primary raw material is made with nickel al and ni chromium), E type thermocouple wire (is the thermocouple wire that primary raw material is made with nickel chromium triangle and copper nickel), J type thermocouple wire (is the thermocouple wire that primary raw material is made with iron wire and copper nickel wire), T type thermocouple wire (is the thermocouple wire that primary raw material is made with copper wire and copper nickel wire) or N type thermocouple wire (nickel chromium triangle silicon silk and nisiloy magnesium silk are the thermocouple wire that primary raw material is made).
(2) each crosspoint in the silk screen is welded.Can be after the braiding of finishing silk screen, to weld, while also can be to weave, weld.Can carry out the multiple spot welding simultaneously by the row's of employing welding machine during welding, for example electric resistance welding, TIG weldering, spot welding, electron beam welding and laser welding are advisable with the laser welding technology that advantageous applications is any, such as carbon dioxide laser, YAG laser and semiconductor laser etc.
(3) cut out successively according to the same cornerwise direction of grid, thereby obtain a large amount of thermoelectric wire strings.As shown in Figure 5, cut out according to straight line a and straight line b direction, wherein a → b zone is the part of wiping out, and b → a zone is needed thermoelectric wire string 1 (see figure 6); Perhaps, increase pad and cut out, make a → b zone and b ← a zone be needed thermoelectric wire string 1 from the centre of pad.
(4) as shown in Figure 7, each thermoelectric wire string 1 and insulating part 2 vertically also fitly are emitted in the mould 4, insulating part 2 is arranged between adjacent two row's thermoelectric wire strings 1 and closely arranges; Perhaps, do not use insulating part 2, each arranges between the thermoelectric wire string 1 separated by a distance, makes spaced-apart between row and row and does not contact.Connect in the mode of series connection (or in parallel) in the termination between every row's thermoelectric wire string 1;
(5) injection is used for the solid slurry that coagulates in mould 4.Slurry can be cement mortar (also can inject other Binder Materials of curable, high temperature resistant (greater than 200 ℃)).For improving the heat-proof quality of electrothermal module, can add in the cement mortar as floating heat-barrier materials such as pearl, heat-resisting hollow ball.
(6) just around each thermoelectric wire string 1 and insulating part 2, form admittedly body 3 with fixed attention behind the slurry curing, thus and the thermoelectric wire string 1 fixing electrothermal module that becomes that will arrange in a large number.
(7) for obtaining better water resistance, electrothermal module is carried out water-proofing treatment, as oil surface lacquer or waterproof material outside.
Claims (10)
1. electrothermal module, comprise N type thermoelectric material (11) and P type thermoelectric material (12), it is characterized in that: described N type thermoelectric material (11) and P type thermoelectric material (12) be for thread, mutually alternately and connect successively end to end and constitute " W " type thermoelectric wire string (1); Described each thermoelectric wire string (1) longitudinal separation is arranged, and interconnects in the termination; Distribute around each thermoelectric wire string (1) to be consolidated with and coagulate body (3) admittedly.
2. electrothermal module according to claim 1 is characterized in that: be provided with insulating part (2) between described adjacent two row's thermoelectric wire strings (1), closely arrange between thermoelectric wire string (1) and the insulating part (2); Described coagulate admittedly body (3) distribute be cemented in each thermoelectric wire string (1) and insulating part (2) around.
3. electrothermal module according to claim 1 and 2 is characterized in that: adopt the mode of series connection to connect between described every row's thermoelectric wire string (1).
4. electrothermal module according to claim 1 and 2 is characterized in that: adopt mode in parallel to connect between described every row's thermoelectric wire string (1).
5. the manufacture method of the described electrothermal module of claim 1 is characterized in that may further comprise the steps:
(1) adopt thread thermoelectric material to be woven into silk screen;
(2) each crosspoint in the silk screen is welded;
(3) cut out successively according to the same cornerwise direction of grid, thereby obtain a large amount of thermoelectric wire strings (1);
(4) each thermoelectric wire string (1) longitudinal separation also fitly is emitted in the mould (4), the mode with serial or parallel connection connects in the termination between every row's thermoelectric wire string (1);
(5) injection is used for the solid slurry that coagulates in mould (4);
(6) just form on every side admittedly behind the slurry curing and coagulate body (3) at each thermoelectric wire string (1), thus the thermoelectric wire string (1) that will arrange in a large number and the fixing electrothermal module that becomes.
6. the manufacture method of electrothermal module according to claim 5 is characterized in that: the electrothermal module that described step (6) is obtained carries out water-proofing treatment.
7. the manufacture method of electrothermal module according to claim 5 is characterized in that: also be provided with insulating part (2) between adjacent two row's thermoelectric wire strings (1) in the described step (4), closely arrange between thermoelectric wire string (1) and the insulating part (2).
8. according to the manufacture method of claim 5 or 6 or 7 described electrothermal modules, it is characterized in that: the Seebeck coefficient of described thread thermoelectric material 〉=10 μ v/k.
9. the manufacture method of electrothermal module according to claim 8, it is characterized in that: described thread thermoelectric material is K type thermocouple wire, E type thermocouple wire, J type thermocouple wire, T type thermocouple wire or N type thermocouple wire.
10. the manufacture method of electrothermal module according to claim 5 is characterized in that: be added with heat-barrier material in the described slurry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100317825A CN100561765C (en) | 2007-11-28 | 2007-11-28 | A kind of manufacture method of electrothermal module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100317825A CN100561765C (en) | 2007-11-28 | 2007-11-28 | A kind of manufacture method of electrothermal module |
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| Publication Number | Publication Date |
|---|---|
| CN101170157A true CN101170157A (en) | 2008-04-30 |
| CN100561765C CN100561765C (en) | 2009-11-18 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100317825A Expired - Fee Related CN100561765C (en) | 2007-11-28 | 2007-11-28 | A kind of manufacture method of electrothermal module |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102714271A (en) * | 2010-01-08 | 2012-10-03 | 依米泰克排放技术有限公司 | Device for generating electric energy from a heat-conducting material |
| CN103413888A (en) * | 2013-08-21 | 2013-11-27 | 电子科技大学 | Pouring-type thermoelectric device and manufacturing method thereof |
| CN104956504A (en) * | 2012-12-28 | 2015-09-30 | 马勒国际公司 | Heat exchanger |
| CN106784281A (en) * | 2016-12-14 | 2017-05-31 | 昆明理工大学 | A kind of thin film thermoelectric module |
| CN109524535A (en) * | 2017-09-19 | 2019-03-26 | 中国科学院上海硅酸盐研究所 | A kind of organic thermo-electric device of flexibility and preparation method thereof |
| CN112038478A (en) * | 2020-09-15 | 2020-12-04 | 上海商皓电子科技有限公司 | Manufacturing process of semiconductor refrigeration element and element |
| CN113294922A (en) * | 2021-05-31 | 2021-08-24 | 华北电力大学 | Solar-driven photo-thermal-thermoelectric coupling synergistic interface evaporation device |
-
2007
- 2007-11-28 CN CNB2007100317825A patent/CN100561765C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102714271A (en) * | 2010-01-08 | 2012-10-03 | 依米泰克排放技术有限公司 | Device for generating electric energy from a heat-conducting material |
| CN102714271B (en) * | 2010-01-08 | 2015-05-27 | 依米泰克排放技术有限公司 | Device for generating electric energy from a heat-conducting material |
| CN104956504A (en) * | 2012-12-28 | 2015-09-30 | 马勒国际公司 | Heat exchanger |
| CN104956504B (en) * | 2012-12-28 | 2017-09-26 | 马勒国际公司 | Heat exchanger |
| CN103413888A (en) * | 2013-08-21 | 2013-11-27 | 电子科技大学 | Pouring-type thermoelectric device and manufacturing method thereof |
| CN103413888B (en) * | 2013-08-21 | 2015-11-04 | 电子科技大学 | A kind of casting type thermoelectric device and preparation method thereof |
| CN106784281A (en) * | 2016-12-14 | 2017-05-31 | 昆明理工大学 | A kind of thin film thermoelectric module |
| CN106784281B (en) * | 2016-12-14 | 2019-06-07 | 昆明理工大学 | A kind of thin film thermoelectric module |
| CN109524535A (en) * | 2017-09-19 | 2019-03-26 | 中国科学院上海硅酸盐研究所 | A kind of organic thermo-electric device of flexibility and preparation method thereof |
| CN112038478A (en) * | 2020-09-15 | 2020-12-04 | 上海商皓电子科技有限公司 | Manufacturing process of semiconductor refrigeration element and element |
| CN112038478B (en) * | 2020-09-15 | 2023-09-26 | 上海商皓电子科技有限公司 | Manufacturing process of semiconductor refrigeration element and element |
| CN113294922A (en) * | 2021-05-31 | 2021-08-24 | 华北电力大学 | Solar-driven photo-thermal-thermoelectric coupling synergistic interface evaporation device |
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| Publication number | Publication date |
|---|---|
| CN100561765C (en) | 2009-11-18 |
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