CN203086384U - Thermoelectric generator based on laminated flat plate array - Google Patents
Thermoelectric generator based on laminated flat plate array Download PDFInfo
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- CN203086384U CN203086384U CN2013200026445U CN201320002644U CN203086384U CN 203086384 U CN203086384 U CN 203086384U CN 2013200026445 U CN2013200026445 U CN 2013200026445U CN 201320002644 U CN201320002644 U CN 201320002644U CN 203086384 U CN203086384 U CN 203086384U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The utility model discloses a thermoelectric generator based on a laminated flat plate array. The thermoelectric generator includes four identical thermoelectric power generation modules, a cooling plate, four protective plates, parallel circuits, an outside box left side plate, an outside box right side plate, an outside box upper side plate, an outside box lower side plate, a cooling water pipe, gas hoods and breather pipes; a box body is formed through the combination of the outside box left side plate, the outside box right side plate, the outside box upper side plate and the outside box lower side plate; two end surfaces of the box body are respectively connected with the gas hoods and the breather pipes; two ends of each protective plate are inserted in grooves between the outside box left side plate and the outside box right side plate; an output circuit can be formed through the connection of the parallel circuits; the cooling water pipe is connected with corresponding cooling channels of the outside box left side plate and the outside box right side plate through water through holes at two sides of the front and back gas hoods; and the same side of the front and back gas hoods is connected with cooling water pipe inflow water, and the other side of the front and back gas hoods is connected with cooling water pipe outflow water. The thermoelectric generator of the utility model can adapt to exhaust pipes with different bore diameters, and has heat collection and cooling capacity, and can effectively collect energy contained in automobile exhaust.
Description
Technical field
The utility model relates to a kind of thermoelectric generator, relates in particular to a kind of thermoelectric generator based on sandwich flat plate array type.
Background technology
The whole world has 900,000,000 automobiles at present approximately, wherein the overwhelming majority is common oil-burning internal combustion engine automobile, and the fuel oil heat that produces that burns in engine all is not converted into kinetic energy, remove outside the losses such as heat that cooling water takes away and friction, also have most energy to be discharged in the atmosphere and go, account for 40%～45% for the general residual heat of tail gas of automobile of automobile engine with the form of using waste heat from tail gas.Consider the dew point corrosion problem of acidic oxide in the tail gas, then exhaust temperature must not be lower than 180 ℃, and therefore, the also available waste-gas heat of being discharged is about 16% of burning total amount.If can be with this heat recovery, for improving automobile fuel ecomomy, the discharging that reduces greenhouse gas be helpful.
Adopt the thermo-electric generation technology effectively to address the above problem.The thermo-electric generation technology is to utilize the Seebeck effect of semi-conducting material, is the technology of electric energy with thermal power transfer.By between hot junction and cold junction, arranging thermocouple, make N type and P type thermoelectric arm constitute a series circuit, these circuit two ends promptly can produce open circuit voltage.Thermocouple is carried out the series connection and the parallel connection of a definite form, just can obtain higher open circuit voltage, be used for the charging of automobile storage battery or directly utilization.
Chinese invention patent CN201010282948.2 has announced a kind of drum type brake thermoelectric generator.Comprise octagon blast pipe, sleeve, thermoelectric generator assembly, cooling jacket; Be furnished with thermo-electric generation assembly and heat insulation layer on each side of octagon blast pipe main part; Thermo-electric generation sheet on each side adopts and is connected in series, and adopts between the different sides to be connected in parallel.The shortcoming of this invention is: the thermo-electric generation sheet has adopted on the same side and has been connected in series in (1) this patent, because in temperature field on the direction of exhaust gas channel is heterogeneous, be the voltage of the voltage that produces of the thermo-electric generation sheet of aft section less than previous section, such circuit can reduce on conversion efficiency of thermoelectric greatly; (2) because all thermo-electric generation sheets all are to be arranged in the thermoelectric generator outside, this will cause the heat utilization ratio of tail gas to reduce.
Summary of the invention
The purpose of this utility model is to provide a kind of thermoelectric generator based on sandwich flat plate array type, be by the reasonable array type layout of temperature difference heat galvanic couple and the sandwich design that is arranged in parallel of many temperature-difference power generation modules, reach the effective utilization to vehicle exhaust energy, it has compact conformation, generated output is stable and the characteristics of the offgas duct in adaptation multitube footpath.
The technical solution adopted in the utility model is:
The utility model comprises the identical temperature-difference power generation module of 4 block structures, coldplate, 4 block protection plates, parallel circuits, outer container left plate, outer container right plate, outer container epipleural, outer container lower side panel, cooling water pipe, two gas hoods and two breather pipes; This casing is combined by outer container left plate, outer container right plate, outer container epipleural and outer container lower side panel, and the both ends of the surface of casing connect gas hood respectively, and two gas hoods connect breather pipe outward respectively; The 1st temperature-difference power generation module is attached between outer container epipleural and the 1st block protection plate; The 2nd temperature-difference power generation module is attached between the 2nd block protection plate and the coldplate; The 3rd temperature-difference power generation module is attached between coldplate and the 3rd block protection plate; The 4th temperature-difference power generation module is attached between the 4th block protection plate and the outer container lower side panel; The two ends of 1-4 block protection plate embed respectively in the groove between outer container left plate and the outer container right plate from top to bottom; About two parallel circuitss connect lead the joint of 4 temperature-difference power generation modules connected together, constitute the two ends of output circuit; Paste the outer container epipleural above the temperature-difference power generation module at the 1st, below the 4th temperature-difference power generation module, paste the outer container lower side panel, and about two parallel circuitss connect the lead both sides and mount the main body that outer container left plate and outer container right plate form thermoelectric generator; Cooling water pipe is by limbers, gas hood both sides, front and back and outer container left plate, the corresponding limbers of outer container right plate links to each other, the outer container left plate, outer container right plate inside has the cooling duct, and this passage links to each other with the cooling duct of outer container epipleural, outer container lower side panel, coldplate respectively; The same side joint cooling water pipe water inlet of front and back gas hood, another side joint cooling water pipe water outlet of front and back gas hood.
The identical temperature-difference power generation module of described 4 block structures includes two thermal insulation boards, N type thermoelectric arm, P type thermoelectric arm and copper guide card that number equates; 1 N type thermoelectric arm and 1 P type thermoelectric arm, couple together by the copper guide card, constitute 1 pair of temperature difference heat galvanic couple, 6 pairs of temperature difference heat galvanic couples are connected to form a thermo-electric generation unit by series system with the copper guide card, all there is pair of joint each thermo-electric generation unit, 1 temperature-difference power generation module main body of 6 thermo-electric generation unit formations placed side by side in the horizontal, temperature difference heat galvanic couple embed in the heat insulation board slot fixing, become 1 complete temperature-difference power generation module.
The material of described temperature-difference thermoelectric arm is a lead telluride, and lead telluride is a kind of temperature-difference thermoelectric material that is applicable to 500 ℃-600 ℃; I mixes in lead telluride
-Ion forms N type thermoelectric arm, doping Na
+Ion forms P type thermoelectric arm.The material of described baffle is a boron nitride.
Compare with background technology, the beneficial effect that the utlity model has is:
1) temperature difference heat galvanic couple of the present utility model adopts array when constituting temperature-difference power generation module, promptly along the direction of thermal current passway, in horizontal series connection, in vertical parallel connection.Each temperature difference heat galvanic couple of series connection part all is in close temperature range, can make the internal resistance of temperature-difference thermoelectric idol approaching, and the voltage of generation is also approaching.The thermo-electric generation unit both can prevent the peaked restriction of single thermocouple to the electric current of flowing through in vertical parallel connection, can increase the electric current of the load of flowing through again.
2) temperature-difference power generation module of the present utility model is in the inner layout that is arranged in parallel that adopts of thermoelectric generator, and in the utility model, the centre of second temperature-difference power generation module and the 3rd temperature-difference power generation module is a coldplate, the three form jointly one sandwich.Utilize sandwich tablet arrangement can increase the effective area that contacts with thermal source, improve utilance tail gas heat quantity.
3) breather pipe of the present utility model can be made multiple caliber form, as girth 38mm form (1.0 discharge capacity), 45mm form (1.4 discharge capacity) or 51mm form (2.0 discharge capacity).Breather pipe is connected by ring flange with gas hood, can adapt to the offgas duct of different-diameter.
Description of drawings
Fig. 1 is a general assembly structure stravismus schematic diagram of the present utility model.
Fig. 2 is the stravismus schematic diagram that removes the outer container right plate of the present utility model.
Fig. 3 is an assembly structure side schematic view of the present utility model.
Fig. 4 is a thermocouple assembly structure schematic diagram of the present utility model.
Fig. 5 is a temperature-difference power generation module assembly structure stravismus schematic diagram of the present utility model.
Fig. 6 is that schematic diagram is looked on the temperature-difference power generation module assembly structure of the present utility model right side.
Fig. 7 is an outer container epipleural structural representation of the present utility model.
Fig. 8 is an outer container left plate structural representation of the present utility model.
Fig. 9 is an outer container gas hood structural representation of the present utility model.
Figure 10 is a breather pipe structure stravismus schematic diagram of the present utility model.
Among the figure: 1. breather pipe, 2. gas hood, 3. outer container left plate; 4. outer container right plate, 5. cooling water pipe, 6. outer container epipleural; 7. outer container lower side panel, 8. temperature-difference power generation module, 9. coldplate; 10. baffle, 11. parallel circuitss connect lead, 12. temperature difference heat galvanic couples; 13. the copper guide card, 14. thermal insulation boards, 15. metallic channels; 16. ring flange, 17. thermo-electric generation unit, 18.N type thermoelectric arm; 19.P type thermoelectric arm; 20. outer container left plate groove, 21. outer container epipleural cooling ducts, 22. outer container left plate cooling ducts; 23. outer container left plate end face paddle hole; 24. outer container epipleural screwed hole, 25 outer container left plate screwed holes, 26 gas hood screwed holes
Embodiment
Below in conjunction with accompanying drawing and implementation process the utility model is further described.
As shown in Figure 1 and Figure 2, the utility model comprises the identical temperature-difference power generation module of 4 block structures 8, coldplate 9,4 block protection plates 10, parallel circuits 11, outer container left plate 3, outer container right plate 4, outer container epipleural 6, outer container lower side panel 7, cooling water pipe 5, two gas hoods 2 and two breather pipes 1;
As Fig. 2, Fig. 3, shown in Figure 6, this casing is combined by outer container left plate 3, outer container right plate 4, outer container epipleural 6 and outer container lower side panel 7, and the both ends of the surface of casing connect gas hood 2, two gas hoods respectively and connect breather pipe 1 outward respectively; The 1st temperature-difference power generation module is attached between outer container epipleural 6 and the 1st block protection plate 10; The 2nd temperature-difference power generation module is attached between the 2nd block protection plate 10 and the coldplate 9; The 3rd temperature-difference power generation module is attached between coldplate 9 and the 3rd block protection plate 10; The 4th temperature-difference power generation module is attached between the 4th block protection plate and the outer container lower side panel 7; The two ends of 1-4 block protection plate embed respectively in the groove between outer container left plate 3 and the outer container right plate 4 from top to bottom; Baffle 10 is that boron nitride material is made, and has high-termal conductivity and good insulation performance, mainly is to be corroded by tail gas for fear of thermoelectric material.Because baffle 10 is to embed in outer container left plate groove 20 and the outer container right plate groove, can play the fixedly effect of temperature-difference power generation module 8 simultaneously.About two parallel circuitss connect lead 11 joint of 4 temperature-difference power generation modules 8 connected together, constitute the two ends of output circuit; Paste outer container epipleural 6 above the temperature-difference power generation module at the 1st, below the 4th temperature-difference power generation module, paste the outer container lower side panel, and about two parallel circuitss connect lead 11 both sides and mount the main body that outer container left plate 3 and outer container right plate 4 form thermoelectric generators.Promising parallel circuits connects the metallic channel 15 of lead 11 channels designs in the left plate 3 of outer container, the right plate 4 of outer container, is fit to the layout that parallel circuits connects lead 11.Have two thermal current passways in the thermoelectric generator, for four temperature-difference power generation modules provide heat.
As Fig. 1, Fig. 2, shown in Figure 9, the epipleural 6 of outer container, outer container lower side panel 7 link to each other with front and back gas hood 2 by screw with, outer container left plate 3, outer container right plate 4, and outer container epipleural screwed hole 24, outer container left plate screwed hole 25 are consistent with the aperture of gas hood screwed hole 26.Front and back gas hood 2 links to each other with front and back breather pipe 1 by ring flange 16, adds asbestos pad between the ring flange 16, connecting the leakage that prevents heat closely simultaneously, constitutes the thermoelectric generator with ventilatory function.The diameter of breather pipe 1 is variable, to adapt to the automobile tail gas pipe of different bores.
As Fig. 1, Fig. 7, Fig. 8, shown in Figure 9, cooling water pipe 5 links to each other with outer container left plate 3, outer container right plate 4 corresponding limbers by limbers, front and back gas hood 2 both sides, outer container left plate 3, outer container right plate 4 inside have the cooling duct, and this passage links to each other with the cooling duct of outer container epipleural 6, outer container lower side panel 7, coldplate 9 respectively.The same side joint cooling water pipe water inlet of front and back gas hood, the mode of another side joint cooling water pipe water outlet of front and back gas hood is cooled off one of them face of temperature-difference power generation module.The aperture of outer container left plate end face paddle hole 23 and outer container epipleural cooling duct 21, outer container left plate cooling duct 22, coldplate 9 is consistent.Outer container left plate 3 is identical with outer container right plate 4 structures; Outer container epipleural 6 is identical with outer container lower side panel 7 structures.
As Fig. 4, Fig. 5, shown in Figure 6, the temperature-difference power generation module 8 that described 4 block structures are identical includes two thermal insulation boards 14, N type thermoelectric arm 18, P type thermoelectric arm 19 and copper guide card 13 that number equates; 1 N type thermoelectric arm 18 and 1 P type thermoelectric arm 19, couple together by copper guide card 13, constitute 1 pair of temperature difference heat galvanic couple 12,6 pairs of temperature difference heat galvanic couples 12 are connected to form a thermo-electric generation unit 17 by series system with copper guide card 13, all there is pair of joint each thermo-electric generation unit 17,1 temperature-difference power generation module 8 main body of 6 thermo-electric generation unit 17 formations placed side by side in the horizontal, temperature difference heat galvanic couple 12 embeds in thermal insulation board 14 grooves fixing, becomes 1 complete temperature-difference power generation module 8.This temperature-difference power generation module 8 has the ability that forms open circuit voltage under certain temperature difference condition.The material of thermal insulation board 14 can be mineral wool, insulation and thermal insulation plastics.
As Fig. 1, shown in Figure 10, wherein the breather pipe 1 of front end is an air inlet pipe, and the breather pipe 1 of tail end is an escape pipe, and its gas type can be vehicle exhaust or other high-temp waste gas.
As shown in Figure 4, the material of described N type thermoelectric arm 18, P type thermoelectric arm 19 is lead telluride (PbTe), and lead telluride is a kind of temperature-difference thermoelectric material that is applicable to 500 ℃-600 ℃; I mixes in lead telluride
-Ion forms N type thermoelectric arm, doping Na
+Ion forms P type thermoelectric arm.
As shown in Figure 6, temperature-difference power generation module 8 surfaces have all covered a block protection plate 10.The material of this baffle 10 is boron nitride BN, has good thermal conductivity and insulating properties, the energy efficient in the tail gas can be conducted to the thermocouple surface, can guarantee not have between the thermocouple of different circuit short circuit again and take place.
The course of work of the present utility model is:
This sandwich flat plate array type thermoelectric generator is connected with automobile tail gas pipe by breather pipe, and tail gas enters two passages up and down after by gas hood.Heat in the tail gas is by a face effect of baffle and temperature-difference power generation module; another side of temperature-difference power generation module with coldplate or the outer container that has cooling capacity equally up and down side plate contact; form the temperature difference thus at the temperature-difference power generation module two ends, produce voltage by temperature-difference power generation module.The voltage that temperature-difference power generation module produces picks out in outer container gas hood front side by lead-in wire through output in parallel, can be used as illumination, charges a battery etc.
Above-mentioned embodiment is used for the utility model of explaining; rather than the utility model limited; in the protection range of spirit of the present utility model and claim, any modification and change to the utility model is made all fall into protection range of the present utility model.
Claims (4)
1. the thermoelectric generator based on sandwich flat plate array type is characterized in that: comprise the identical temperature-difference power generation module of 4 block structures (8), coldplate (9), 4 block protection plates (10), parallel circuits (11), outer container left plate (3), outer container right plate (4), outer container epipleural (6), outer container lower side panel (7), cooling water pipe (5), two gas hoods (2) and two breather pipes (1); This casing is combined by outer container left plate (3), outer container right plate (4), outer container epipleural (6) and outer container lower side panel (7), and the both ends of the surface of casing connect gas hood (2) respectively, and two gas hoods connect breather pipe (1) outward respectively; The 1st temperature-difference power generation module is attached between outer container epipleural and the 1st block protection plate; The 2nd temperature-difference power generation module is attached between the 2nd block protection plate and the coldplate; The 3rd temperature-difference power generation module is attached between coldplate and the 3rd block protection plate; The 4th temperature-difference power generation module is attached between the 4th block protection plate and the outer container lower side panel (7); The two ends of 1-4 block protection plate embed respectively in the groove between outer container left plate (3) and the outer container right plate (4) from top to bottom; About two parallel circuitss connect leads (11) joint of 4 temperature-difference power generation modules (8) connected together, constitute the two ends of output circuit; Paste outer container epipleural (6) above the temperature-difference power generation module at the 1st, below the 4th temperature-difference power generation module, paste the outer container lower side panel, and about two parallel circuitss connect lead (11) both sides and mount the main body that outer container left plate and outer container right plate form thermoelectric generator; Cooling water pipe (5) is by limbers, gas hood both sides, front and back and outer container left plate (3), the corresponding limbers of outer container right plate (4) links to each other, outer container left plate (3), outer container right plate (4) inside has the cooling duct, and this passage links to each other with the cooling duct of outer container epipleural (6), outer container lower side panel (7), coldplate respectively; The same side joint cooling water pipe water inlet of front and back gas hood, another side joint cooling water pipe water outlet of front and back gas hood.
2. a kind of thermoelectric generator according to claim 1 based on sandwich flat plate array type, it is characterized in that: the temperature-difference power generation module (8) that described 4 block structures are identical, include two thermal insulation boards (14), N type thermoelectric arm (18), P type thermoelectric arm (19) and copper guide card (13) that number equates; 1 N type thermoelectric arm (18) and 1 P type thermoelectric arm (19), couple together by copper guide card (13), constitute 1 pair of temperature difference heat galvanic couple (12), 6 pairs of temperature difference heat galvanic couples (12) are connected to form a thermo-electric generation unit (17) by series system with the copper guide card, all there is pair of joint each thermo-electric generation unit, 6 thermo-electric generation unit 1 temperature-difference power generation modules of formation placed side by side in the horizontal (8) main body, temperature difference heat galvanic couple (12) embeds in thermal insulation board (14) groove fixing, becomes 1 complete temperature-difference power generation module (8).
3. a kind of thermoelectric generator based on sandwich flat plate array type according to claim 1 is characterized in that: the material of described temperature-difference thermoelectric arm is a lead telluride, and lead telluride is a kind of temperature-difference thermoelectric material that is applicable to 500 ℃-600 ℃.
4. a kind of thermoelectric generator based on sandwich flat plate array type according to claim 1 is characterized in that: the material of described baffle is a boron nitride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200026445U CN203086384U (en) | 2013-01-05 | 2013-01-05 | Thermoelectric generator based on laminated flat plate array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200026445U CN203086384U (en) | 2013-01-05 | 2013-01-05 | Thermoelectric generator based on laminated flat plate array |
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| Publication Number | Publication Date |
|---|---|
| CN203086384U true CN203086384U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200026445U Withdrawn - After Issue CN203086384U (en) | 2013-01-05 | 2013-01-05 | Thermoelectric generator based on laminated flat plate array |
Country Status (1)
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| CN (1) | CN203086384U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078558A (en) * | 2013-01-05 | 2013-05-01 | 浙江大学 | Sandwich flat plate array type-based thermoelectric generator |
| CN109307557A (en) * | 2018-11-12 | 2019-02-05 | 鑫国集团有限公司 | A kind of shared polar net formula multipoint thermocouple |
-
2013
- 2013-01-05 CN CN2013200026445U patent/CN203086384U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078558A (en) * | 2013-01-05 | 2013-05-01 | 浙江大学 | Sandwich flat plate array type-based thermoelectric generator |
| CN109307557A (en) * | 2018-11-12 | 2019-02-05 | 鑫国集团有限公司 | A kind of shared polar net formula multipoint thermocouple |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130724 Effective date of abandoning: 20150429 |