CN206023618U - A kind of residual heat of tail gas of automobile temperature difference electricity generation device of employing phase-change material - Google Patents
A kind of residual heat of tail gas of automobile temperature difference electricity generation device of employing phase-change material Download PDFInfo
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- CN206023618U CN206023618U CN201621051785.6U CN201621051785U CN206023618U CN 206023618 U CN206023618 U CN 206023618U CN 201621051785 U CN201621051785 U CN 201621051785U CN 206023618 U CN206023618 U CN 206023618U
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- change material
- phase
- thermoelectric generator
- heat
- heat carrier
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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
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Abstract
The utility model discloses a kind of residual heat of tail gas of automobile temperature difference electricity generation device of employing phase-change material, the heat carrier being fixed on including laminating on blast pipe, thermoelectric generator is fixed with the heat carrier, the hot junction of the thermoelectric generator is fitted on the outer surface of the heat carrier, radiator is provided with the cold end of the thermoelectric generator, phase-change material accommodating chamber is provided near the side of the thermoelectric generator in the heat conduction body, and phase-change material is filled with the phase-change material accommodating chamber.The utility model is by arranging phase-change material using in heat carrier output end, the hot-side temperature of thermoelectric generator is made to maintain in a relatively stable scope using phase-change material, the performance of thermoelectric generator and the stability of output voltage is greatly improved and then, and extend the service life of thermoelectric generator to a certain extent.
Description
Technical field
The utility model is related to energy-conserving and emission-cutting technology field, particularly a kind of residual heat of tail gas of automobile temperature of employing phase-change material
Difference TRT.
Background technology
With being continuously increased for automobile quantity, the energy of vehicle consumption grows with each passing day, and automobile energy-saving is increasingly subject to people
Concern.Under this situation, thermoelectric generation is constantly developed with application using the research of aspect in residual heat of tail gas of automobile.Temperature
It is a kind of generation mode of new, environmental protection that difference generates electricity, and its principle is：According to Seebeck effect, maintain to be coupled to galvanic couple pair
The temperature difference at semiconductor devices two ends, will produce thermoelectromotive force in this semiconductor devices.
, during traveling, up to 600-800 DEG C, the thermo-electric generation principle of foundation semiconductor can for delivery temperature for automobile
So that waste gas residual heat is converted into electric energy, with good economic and social benefit.But it is subject to temperature-difference power generation module manufacture craft
With the restriction of existing thermoelectric generation, there is certain safe working temperature in temperature-difference power generation module hot junction, the temperature not only with temperature
The optimum working temperature of difference electricity generation material is relevant, and in also making to temperature-difference power generation module, fusing point of solder used etc. is related.The temperature difference
The hot junction maximum temperature of electricity generation module may not exceed this higher limit, otherwise will cause the problems such as snapping, cause thermoelectric generator without
Method normal work.And automobile is in actual travel, the operating condition of engine is changing always, and the temperature for causing blast pipe is to become
Change, so that thermoelectric generator hot-side temperature is not in the range of the safe working temperature of thermoelectric generator.For ensureing as far as possible
The performance of thermoelectric generator, stable output voltage, certain thermal stress adaptedness and service life, a solution route is
The temperature in its hot junction is maintained in the range of the safe working temperature of thermo-electric generation sheet.
Content of the invention
The utility model is to solve technical problem present in known technology to provide a kind of automobile of employing phase-change material
Waste heat from tail gas temperature difference electricity generation device, the device can make the hot-side temperature of thermoelectric generator maintain the safe work of thermo-electric generation sheet
Make in temperature range.
The utility model is adopted the technical scheme that by solving technical problem present in known technology：One kind adopts phase
Become the residual heat of tail gas of automobile temperature difference electricity generation device of material, the heat carrier being fixed on including laminating on blast pipe, in the heat carrier
On be fixed with thermoelectric generator, the hot junction of the thermoelectric generator is fitted on the outer surface of the heat carrier, in the temperature difference
The cold end of electric organ is provided with radiator, in the heat conduction body is provided with phase-change material receiving near the side of the thermoelectric generator
Chamber, is filled with phase-change material in the phase-change material accommodating chamber.
Foam metal is filled with the phase-change material.
The phase-change material accommodating chamber adopts rectangular structure.
The insulation heat-insulating shield docked with the thermoelectric generator is fitted with the outer surface of the heat carrier.
The heat carrier is provided with the inner arc face fitted with blast pipe and is fitted with the thermoelectric generator hot junction
Medial plane；The radiator is fin radiator, the cold end of the planar side of the fin radiator and the thermoelectric generator
Laminating, the fin of the fin radiator are consistent with motor vehicle length direction.
The heat carrier is provided with the semicircular inner side arc surface that fits with blast pipe, and the heat carrier is arranged on blast pipe
Lower section, the top and bottom of the heat carrier are plane, and the heat carrier is fixed on blast pipe using semicircle anchor ear, institute
The hot junction for stating thermoelectric generator is fitted in the bottom plane of the heat carrier, the heat carrier top plan and around
The insulation heat-insulating shield is fitted with surface.
The utility model has the advantages and positive effects of：Phase-change material is set in heat carrier output end by adopting,
The hot-side temperature of thermoelectric generator is maintained in a relatively stable scope using phase-change material, and then greatly improve the temperature difference
The performance of electric organ and the stability of output voltage, and extend the service life of thermoelectric generator to a certain extent.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1st, semicircle anchor ear, 2, blast pipe, 3, screw, 4, heat carrier, 5, insulation heat-insulating shield, 6, thermoelectric generator,
7th, fin radiator, 8, phase-change material.
Specific embodiment
For content of the invention of the present utility model, feature and effect can be further appreciated that, following examples are hereby enumerated, and is coordinated
Accompanying drawing describes in detail as follows：
Fig. 1 is referred to, a kind of residual heat of tail gas of automobile temperature difference electricity generation device of employing phase-change material, including the row of being fixed on that fits
Heat carrier 4 on tracheae 2, is fixed with thermoelectric generator 6 on the heat carrier 4, and the hot junction of the thermoelectric generator 6 is fitted in
On the outer surface of the heat carrier 4, radiator 7 is provided with the cold end of the thermoelectric generator 6, near institute in the heat conduction body
The side for stating thermoelectric generator 7 is provided with phase-change material accommodating chamber, is filled with phase-change material 8 in the phase-change material accommodating chamber.
If the structure of phase-change material accommodating chamber is incorrect may to cause thermoelectric generator hot-side temperature skewness；
Thermoelectric generator hot-side temperature can be limited by phase-change material heat conductivility.Can cause generating efficiency low in terms of above-mentioned two.
For this problem, can be calculated by the simulation under certain primary condition and boundary condition and be optimized design, find optimum
Phase-change material holding cavity structure.For example, the phase-change material accommodating chamber in the present embodiment can be made into triangular prism knot by rectangular structure
Structure.Calculated by simulation, consider Temperature Distribution and generating efficiency, select optimal phase-change material to accommodate cavity configuration.In order to
Thermal conductivity factor is improved, in the phase-change material 8, is filled with foam metal.In order to effectively reduce thermal loss, electric organ is improved
Hot-side temperature, and then improve generating efficiency and power, are fitted with the outer surface of the heat carrier 4 and the thermoelectric generator
The insulation heat-insulating shield 5 of 6 docking.In order to improve electric organ hot-side temperature, improve generating efficiency and power, facilitate thermoelectric generator 6
Installation, the heat carrier 4 is provided with the inner arc face fitted with blast pipe 4 and fitted with 6 hot junction of the thermoelectric generator
Medial plane；The radiator is fin radiator 7, the planar side of the fin radiator 7 and the thermoelectric generator 6
Cold end is fitted, and the fin of the fin radiator 7 is consistent with motor vehicle length direction, contributes to air-flow in running car and flows through fin
Each heat-transfer surface.More specific, it is contemplated that installing space is limited, and the heat carrier 4 is provided with the semicircle that fits with blast pipe 2
Shape inner arc face, the heat carrier 4 are arranged on the lower section of blast pipe 2, and the top and bottom of the heat carrier 4 are plane,
The heat carrier 4 is fixed on blast pipe 2 using semicircle anchor ear 1, and the hot junction of the thermoelectric generator 6 is fitted in the heat conduction
In the bottom plane of body 4, the insulation heat-insulating shield 5 is fitted with the top plan of the heat carrier 4 and circumferential surface,
The heat carrier 4, insulation heat-insulating shield 5 and semicircle anchor ear 1 are fixed together using screw 3.In the present embodiment, the heat conduction
Body 4 is made using highly heat-conductive material, for example：Copper or aluminium etc..
The course of work of the present utility model is as follows：
After automobile starting, high temperature automotive tail gas is produced, thermoelectric generator 6 enters working condition therewith.Thermoelectric generator 6
Hot junction absorbs the heat transmitted by highly heat-conductive material 4, and cold end occurs forced-convection heat transfer by fin radiator 7, heat is arranged
Into air, so as to maintain the temperature difference at cold and hot end.When in vehicle traveling process, engine operation condition changes, blast pipe
Temperature can change with the operating condition of engine so that the temperature of highly heat-conductive material 4 is continually changing.When high heat conduction material
When the temperature of material 4 is higher than the safe working temperature range limit of thermoelectric generator 6, phase-change material 8 will undergo phase transition, phase transition process
Heat absorption, temperature keep substantially constant so that the hot-side temperature of thermoelectric generator 6 maintain safe working temperature range limit with
Under.
Although being described to preferred embodiment of the present utility model above in conjunction with accompanying drawing, the utility model is not
Above-mentioned specific embodiment is confined to, above-mentioned specific embodiment is only schematically, is not restricted, ability
The those of ordinary skill in domain under enlightenment of the present utility model, without departing from the utility model objective and claimed
Under ambit, a lot of forms can also be made, these are belonged within protection domain of the present utility model.
Claims (6)
1. a kind of residual heat of tail gas of automobile temperature difference electricity generation device of employing phase-change material, it is characterised in that including the row of being fixed on that fits
Heat carrier on tracheae, is fixed with thermoelectric generator on the heat carrier, and the hot junction of the thermoelectric generator is fitted in described
On the outer surface of heat carrier, radiator is provided with the cold end of the thermoelectric generator, near the temperature difference in the heat conduction body
The side of electric organ is provided with phase-change material accommodating chamber, is filled with phase-change material in the phase-change material accommodating chamber.
2. the residual heat of tail gas of automobile temperature difference electricity generation device of employing phase-change material according to claim 1, it is characterised in that
Foam metal is filled with the phase-change material.
3. the residual heat of tail gas of automobile temperature difference electricity generation device of employing phase-change material according to claim 1, it is characterised in that institute
State phase-change material accommodating chamber and adopt rectangular structure.
4. the residual heat of tail gas of automobile temperature difference electricity generation device of employing phase-change material according to claim 1, it is characterised in that
The insulation heat-insulating shield docked with the thermoelectric generator is fitted with the outer surface of the heat carrier.
5. the residual heat of tail gas of automobile temperature difference electricity generation device of employing phase-change material according to claim 4, it is characterised in that institute
State heat carrier and be provided with the inner arc face that fits with blast pipe and the medial plane that fits with the thermoelectric generator hot junction；Institute
Radiator is stated for fin radiator, the planar side of the fin radiator is fitted with the cold end of the thermoelectric generator, the wing
The fin of formula radiator is consistent with motor vehicle length direction.
6. the residual heat of tail gas of automobile temperature difference electricity generation device of employing phase-change material according to claim 5, it is characterised in that institute
State heat carrier and be provided with the semicircular inner side arc surface that fits with blast pipe, the heat carrier is arranged on the lower section of blast pipe, described
The top and bottom of heat carrier is plane, and the heat carrier is fixed on blast pipe using semicircle anchor ear, and the temperature difference is sent out
The hot junction of electrical equipment is fitted in the bottom plane of the heat carrier, on the top plan of the heat carrier and circumferential surface
It is fitted with the insulation heat-insulating shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621051785.6U CN206023618U (en) | 2016-09-13 | 2016-09-13 | A kind of residual heat of tail gas of automobile temperature difference electricity generation device of employing phase-change material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621051785.6U CN206023618U (en) | 2016-09-13 | 2016-09-13 | A kind of residual heat of tail gas of automobile temperature difference electricity generation device of employing phase-change material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206023618U true CN206023618U (en) | 2017-03-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621051785.6U Expired - Fee Related CN206023618U (en) | 2016-09-13 | 2016-09-13 | A kind of residual heat of tail gas of automobile temperature difference electricity generation device of employing phase-change material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206023618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329998A (en) * | 2016-09-13 | 2017-01-11 | 天津大学 | Automobile exhaust waste heat thermoelectric generator device adopting phase change materials |
-
2016
- 2016-09-13 CN CN201621051785.6U patent/CN206023618U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329998A (en) * | 2016-09-13 | 2017-01-11 | 天津大学 | Automobile exhaust waste heat thermoelectric generator device adopting phase change materials |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20190913 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |