CN205400867U - Vehicle vent -pipe waste heat power generation device - Google Patents
Vehicle vent -pipe waste heat power generation device Download PDFInfo
- Publication number
- CN205400867U CN205400867U CN201620171278.XU CN201620171278U CN205400867U CN 205400867 U CN205400867 U CN 205400867U CN 201620171278 U CN201620171278 U CN 201620171278U CN 205400867 U CN205400867 U CN 205400867U
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- waste heat
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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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- Exhaust Silencers (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model discloses a vehicle vent -pipe waste heat power generation device, including the exhaust shroud, the exhaust shroud adopts the subdivision structure, is equipped with upper cover and base, the cross -sectional area of base compares the cross -sectional area of upper cover is big, it is trapezoidal that the cross section upper portion of base is the rectangle lower part, the base is equipped with heat conduction body and lagging casing, the inboard surface with the blast pipe of heat conduction body is close to, the outside of heat conduction body and the high temperature face of thermoelectric generation piece next -door neighbour be equipped with heat abstractor on the low temperature face of thermoelectric generation piece be equipped with adiabatic ring around the thermoelectric generation piece, adiabatic ring grip dress is in the lagging casing with between the heat abstractor. The utility model discloses can select as required with the car on battery and/or electrically -driven turbine booster be connected, the electric energy that both can utilize thermoelectric generator to send in real time also can the energy storage. And simple structure, simple to operate, generating efficiency height.
Description
Technical field
This utility model relates to energy-conserving and emission-cutting technology field, particularly a kind of adopts semiconductor temperature differential generating that automobile exhaust pipe used heat is circulated the energy saver of recycling.
Background technology
Along with the increase of automobile quantity, the energy of vehicle consumption grows with each passing day, vehicle energy-conservation also more and more concerned.For the internal combustion engine in automobile, in fuel oil, the energy of about 60% is not utilized effectively, and the overwhelming majority is discharged in air with the form of waste gas, causes huge economic loss and serious environmental pollution.Automobile is in the process run, and automobile exhaust pipe temperature is up to 600-800 DEG C, according to the thermoelectric principles of quasiconductor, it is possible to waste gas residual heat is converted into electric energy, has good economic and social benefit.
Thermo-electric generation is a kind of novel generation mode, utilizes Seebeck effect that heat energy is converted directly into electric energy.So-called Seebeck effect, is that the two ends of conductor (or quasiconductor) A and B are closely contacted with each other composition loop, if keeping different temperatures T in two connection places1With T2, then thermoelectromotive force will be produced in the loop due to temperature difference.In general the efficiency of thermoelectric generator is mainly determined by the temperature difference of composition material and high/low temperature end, for reaching good working condition, need the relation further between the best power generation performance of research and cold warm end temperature difference, select suitable operating temperature to make power generating device play its effect in maximum efficiency.
Summary of the invention
This utility model provides a kind of using waste heat from automobile exhaust pipe TRT for solving the technical problem of existence in known technology, and this device can utilize the cogeneration of automobile exhaust pipe in maximum efficiency.
This utility model is adopted the technical scheme that by the technical problem solving to exist in known technology: a kind of using waste heat from automobile exhaust pipe TRT, including exhaust shroud, described exhaust shroud adopts subdivision structure, it is provided with upper cover and base, the cross-sectional area of described base is bigger than the cross-sectional area of described upper cover, the cross-sectional upper part of described base is rectangular lower is inverted trapezoidal, described base is provided with heat-conductive body and lagging casing, the inner side of described heat-conductive body is close to the outer surface of exhaustor, the high temperature face of the outside of described heat-conductive body and thermo-electric generation sheet is close to, the low temperature face of described thermo-electric generation sheet is provided with heat abstractor, it is provided around adiabatic ring at described thermo-electric generation sheet, described adiabatic ring is installed between described lagging casing and described heat abstractor.
Described adiabatic ring is fixed on described heat abstractor.
Described heat abstractor adopts finned heat sink, and the area of described finned heat sink is more than the area of described generating sheet.
The top and bottom of described finned heat sink are equipped with fin, and described fin is provided with gradient.
This utility model has the advantage that and has the benefit effect that the hot junction making thermo-electric generation sheet is less with the contact area of heat-conductive body, improves hot junction heat flow density and the temperature homogeneity of thermo-electric generation sheet by making the base of exhaust shroud adopt inverted trapezoidal structure；By adopting and the finned heat sink of the thermo-electric generation sheet little contact area of cold end, large area heat radiation, accelerate the heat radiation of thermo-electric generation sheet, reduce the cold junction temperature of thermo-electric generation sheet.Thermo-electric generation sheet hot junction heat flow density is big, homogeneous temperature, and cold end area of dissipation is big, makes the cold warm end temperature difference of thermo-electric generation sheet relatively big, improves conversion efficiency of thermoelectric；Exhaust shroud adopts Split type structure and upper cover small volume, is not only convenient for exhaust shroud and combines closely with exhaustor, improves conversion efficiency, and reduce exhaust shroud and taken up space, make the easier for installation of exhaust shroud；Adopt the structure being provided with thermo-electric generation sheet circuit in adiabatic ring, it is simple to Heat transmission.This utility model can select to be connected with the accumulator on automobile and/or electric turbocharger as required, both can utilize the electric energy that thermoelectric generator sends in real time, it is also possible to accumulation of energy.In sum, this utility model simple in construction, easy for installation, generating efficiency is high.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present utility model；
Fig. 2 is the space structure schematic diagram after this utility model removes finned heat sink；
Fig. 3 is finned heat sink space structure schematic diagram of the present utility model.
In figure: 1, exhaustor, 2, upper cover, 3, heat-conductive body, 4, thermo-electric generation sheet, 5, adiabatic ring, 6, finned heat sink, 7, lagging casing, 8, screw, 9, installing hole.
Detailed description of the invention
For summary of the invention of the present utility model, feature and effect can be further appreciated that, hereby enumerate following example, and it be as follows to coordinate accompanying drawing to describe in detail:
Refer to Fig. 1～Fig. 3, a kind of using waste heat from automobile exhaust pipe TRT, including exhaust shroud, described exhaust shroud adopts subdivision structure, it is provided with upper cover 2 and base, the cross-sectional area of described base is bigger than the cross-sectional area of described upper cover, the cross-sectional upper part of described base is rectangular lower is inverted trapezoidal, described base is provided with heat-conductive body 3 and lagging casing 7, the inner side of described heat-conductive body 3 is close to the outer surface of exhaustor 1, the outside of described heat-conductive body 3 is close to the high temperature face of thermo-electric generation sheet 4, is provided with heat abstractor on the low temperature face of described thermo-electric generation sheet 4；At the adiabatic ring 5 that is provided around of described thermo-electric generation sheet 4, described adiabatic ring 5 is installed between described lagging casing 7 and described heat abstractor.
In the present embodiment, described adiabatic ring 5 is fixed on described heat abstractor.Described heat abstractor adopts finned heat sink 6, and the area of described finned heat sink 6 is more than the area of described generating sheet 4.The top and bottom of described finned heat sink 6 are equipped with fin, and described fin is provided with gradient, it is simple to Foundry Production.The fin direction that should make finned heat sink during installation is consistent with vehicle heading, contributes to air-flow during vehicle travels and flows through each heat-transfer surface of fin.In the present embodiment, described upper cover 2 and described base adopt screw 8 to connect.Described finned heat sink 6 is provided with installing hole 9.
Operation principle of the present utility model is: the efficiency of semiconductor power generation device is relevant with the electrothermal module two ends temperature difference.The two ends temperature difference is more big, and generating efficiency is more high.Therefore this utility model is by one end of heat-conductive body and the close contact of discharge duct large area, is combined closely in the hot junction of the other end of heat-conductive body Yu thermo-electric generation sheet, and both contacts area are less；The cold end of thermo-electric generation sheet and finned heat sink close contact, finned heat sink is bigger with the contact area of air, it is possible to shed by heat with air generation convection current rapidly.Thermo-electric generation sheet hot junction contact area is little, heat flow density is big, temperature homogeneity good, and cold end area of dissipation is big, and the temperature difference at thermo-electric generation sheet two ends is relatively big, and conversion efficiency of thermoelectric is high.
During this utility model application, the specification of thermo-electric generation sheet 4 and quantity should be determined according to the size of automobile exhaust pipe 1 and temperature, and are linked to be circuit in modes such as serial or parallel connections.When running car, automobile exhaust pipe 1 discharges substantial amounts of high-temperature gas, and heat is conducted to generating sheet hot junction by highly heat-conductive material.Owing to exhaust shroud base adopts up big and down small inverted trapezoidal structure, make that generating sheet hot junction heat flow density is big, homogeneous temperature.Because of Air Forced Convection, finned heat sink sheds amount of heat, makes thermo-electric generation sheet 4 high temperature face and low temperature face reach the bigger temperature difference and produce unidirectional current.
Although preferred embodiment of the present utility model being described above in conjunction with accompanying drawing; but this utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is merely schematic; it is not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; without departing under this utility model objective and scope of the claimed protection situation, it is also possible to making a lot of form, these belong within protection domain of the present utility model.
Claims (4)
1. a using waste heat from automobile exhaust pipe TRT, it is characterized in that, including exhaust shroud, described exhaust shroud adopts subdivision structure, it is provided with upper cover and base, the cross-sectional area of described base is bigger than the cross-sectional area of described upper cover, the cross-sectional upper part of described base is rectangular lower is inverted trapezoidal, described base is provided with heat-conductive body and lagging casing, the inner side of described heat-conductive body is close to the outer surface of exhaustor, the high temperature face of the outside of described heat-conductive body and thermo-electric generation sheet is close to, the low temperature face of described thermo-electric generation sheet is provided with heat abstractor, it is provided around adiabatic ring at described thermo-electric generation sheet, described adiabatic ring is installed between described lagging casing and described heat abstractor.
2. using waste heat from automobile exhaust pipe TRT according to claim 1, it is characterised in that described adiabatic ring is fixed on described heat abstractor.
3. using waste heat from automobile exhaust pipe TRT according to claim 1, it is characterised in that described heat abstractor adopts finned heat sink, and the area of described finned heat sink is more than the area of described generating sheet.
4. using waste heat from automobile exhaust pipe TRT according to claim 3, it is characterised in that the top and bottom of described finned heat sink are equipped with fin, and described fin is provided with gradient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620171278.XU CN205400867U (en) | 2016-03-07 | 2016-03-07 | Vehicle vent -pipe waste heat power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620171278.XU CN205400867U (en) | 2016-03-07 | 2016-03-07 | Vehicle vent -pipe waste heat power generation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205400867U true CN205400867U (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620171278.XU Expired - Fee Related CN205400867U (en) | 2016-03-07 | 2016-03-07 | Vehicle vent -pipe waste heat power generation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205400867U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604661A (en) * | 2016-03-07 | 2016-05-25 | 天津大学 | Device for power generation by waste heat of automobile exhaust pipes |
| CN112140830A (en) * | 2019-06-28 | 2020-12-29 | 长城汽车股份有限公司 | Energy feedback device, vehicle air conditioning system, vehicle and control method |
-
2016
- 2016-03-07 CN CN201620171278.XU patent/CN205400867U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604661A (en) * | 2016-03-07 | 2016-05-25 | 天津大学 | Device for power generation by waste heat of automobile exhaust pipes |
| CN112140830A (en) * | 2019-06-28 | 2020-12-29 | 长城汽车股份有限公司 | Energy feedback device, vehicle air conditioning system, vehicle and control method |
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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: 20160727 Termination date: 20170307 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |