CN114499278A - Laminated automobile temperature difference power generation device integrated with heat pipe - Google Patents

Laminated automobile temperature difference power generation device integrated with heat pipe Download PDF

Info

Publication number
CN114499278A
CN114499278A CN202210159860.4A CN202210159860A CN114499278A CN 114499278 A CN114499278 A CN 114499278A CN 202210159860 A CN202210159860 A CN 202210159860A CN 114499278 A CN114499278 A CN 114499278A
Authority
CN
China
Prior art keywords
heat pipe
hot
cold
flat plate
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210159860.4A
Other languages
Chinese (zh)
Inventor
阎玉英
黄阔
王国华
罗丁
朱伟强
李英
任勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Nottingham Ningbo China
Original Assignee
University of Nottingham Ningbo China
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Nottingham Ningbo China filed Critical University of Nottingham Ningbo China
Priority to CN202210159860.4A priority Critical patent/CN114499278A/en
Publication of CN114499278A publication Critical patent/CN114499278A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N11/00Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
    • H02N11/002Generators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N5/00Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
    • F01N5/02Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
    • F01N5/025Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat the device being thermoelectric generators

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Abstract

The invention discloses a laminated automobile temperature difference power generation device integrated with heat pipes, which relates to the field of thermoelectric conversion, and comprises: the tail gas inlet end cover is used for inputting the tail gas of the engine; compared with the prior art, the invention has the beneficial effects that: the high-temperature tail gas heat pipe; in addition, the hot end flat plate and the cold end flat plate are both in a hexagonal design and are assembled through a laminated design, so that the space utilization rate of the automobile temperature difference power generation device is improved, the defect that the radial heat conduction capability of the traditional structure is poor is overcome, the output power is greatly improved, and the development and application of the automobile temperature difference power generation device are promoted.

Description

Laminated automobile temperature difference power generation device integrated with heat pipe
Technical Field
The invention relates to the field of thermoelectric conversion, in particular to a laminated automobile thermoelectric power generation device integrated with a heat pipe.
Background
In recent years, as energy and environmental problems caused by excessive use of fossil fuels become more serious, various countries issue corresponding policies to support the development of new energy technologies and reduce the use of fossil fuels. The thermoelectric conversion technology is one of new energy technologies with great application prospects, can directly convert heat energy into electric energy, does not generate noise and pollution, and has been primarily applied in the fields of aerospace, wearable equipment, waste heat recovery and the like.
The automobile thermoelectric power generation device utilizes the thermoelectric effect of the thermoelectric module to recycle and convert heat in engine tail gas into electric energy, and the generated electric energy can be used for supplying power to vehicle-mounted electric appliances or stored in a vehicle-mounted storage battery.
However, the space of the vehicle exhaust system is limited, the structural size of the existing automobile thermoelectric power generation device is too large, only a limited number of thermoelectric modules can be arranged in a narrow space, the heat energy of the engine exhaust cannot be effectively utilized, and in addition, when the exhaust flows through the automobile thermoelectric power generation device, the radial heat conducting performance of the exhaust flow is poor, so that the heat cannot be effectively transferred from the exhaust to the thermoelectric modules, and the output power is low. How to arrange more thermoelectric modules in a limited space and improving the radial heat conduction capability of the thermoelectric power generation device is the key point for promoting the thermoelectric technology to be widely applied in the field of automobile exhaust waste heat recovery.
Disclosure of Invention
The invention aims to provide a laminated automobile temperature difference power generation device integrated with a heat pipe, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a laminated automobile temperature difference power generation device integrated with a heat pipe comprises:
the tail gas inlet end cover is used for inputting tail gas of the engine;
the cold end flat plate is used for balancing the temperature input by the cold end heat pipe;
the hot end flat plate is used for balancing the temperature input by the hot end heat pipe;
the thermoelectric module is used for converting and generating electric energy according to the temperature difference between the cold end plate and the hot end plate;
the cold end heat pipe is used for transmitting heat to the cold end flat plate;
the radiator is used for accelerating the heat dissipation of the cold-end flat plate through the cooling liquid;
the hot end heat pipe is used for transmitting heat to the hot end flat plate; partitioning according to the temperature of the tail gas, wherein the temperature parameters of the heat pipes in different areas are different, and the heat loss in the tail gas transmission process is matched;
a tail gas outlet end cover; used for discharging the tail gas of the engine;
dull and stereotyped hexagonal structure of being of hot junction and cold junction, thermoelectric module are located six edges that hot junction is dull and stereotyped and cold junction is dull and stereotyped and press from both sides between the two, and the dull and stereotyped number of hot junction is M, and the dull and stereotyped number of cold junction is M +1, and thermoelectric module's number is 12M, and the evaporation end embedding cold junction of cold junction heat pipe is dull and stereotyped, and the condensation end fixed connection radiator of cold junction heat pipe, the condensation end embedding hot junction of hot junction heat pipe are dull and stereotyped.
As a still further scheme of the invention: the laminated automobile temperature difference power generation device integrated with the heat pipes is integrally in a laminated structure and comprises N layers of units, wherein N is M, the 1 st layer of unit is close to a tail gas inlet end cover, the N layer of unit is close to a tail gas outlet end cover, and each layer of unit comprises 1 hot end flat plate, 12 thermoelectric modules and 2 cold end flat plates; the unit on the ith layer and the unit on the (i + 1) th layer share one cold end flat plate, i is less than or equal to N-1, and the number N of layers is equal to the length of a space where an automobile exhaust system can be placed divided by the height H of the single-layer unit.
As a still further scheme of the invention: the hot end flat plate comprises 6 platforms, each platform is provided with a square groove with the thickness of 0.1-1mm, the size of each groove is equal to that of the thermoelectric module, and the thermoelectric module is embedded into the square groove; along the radial direction, each platform is provided with 2 round holes, the diameter of each round hole is equal to that of the hot end heat pipe, and the distance from the center of each round hole to the right boundary of the groove is
Figure BDA0003514066080000021
A distance from the left boundary of the groove of
Figure BDA0003514066080000022
Wherein L is equal to the length of the thermoelectric module.
As a still further scheme of the invention: the inner side of the hot end flat plate is provided with a baffle plate with the height of K,
Figure BDA0003514066080000023
the diameter of the inscribed circle of the (i + 1) th layer hot end flat plate is equal to the diameter of the inscribed circle of the (i) th layer hot end flat plate minus the thickness of the baffle plate; the condensation end of the hot end heat pipe is embedded into the round hole of the hot end flat plate and is flush with the outer outlet of the round hole, and the evaporation end is arranged in the tail gas flow channel; in addition, the (i + 1) th layer hot end flat plate and the (i) th layer hot end flat plate are assembled in an upside-down mode, a sealing environment of an exhaust gas flow channel is formed by the fact that the baffles are mutually staggered, and the corresponding (i + 1) th layer hot end heat pipe and the corresponding (i) th layer hot end heat pipe are mutually staggered to improve heat exchange between exhaust gas and the hot end heat pipes.
As a still further scheme of the invention: the hot end heat pipe is subjected to zone treatment according to the temperature environment, and sequentially comprises a high-temperature zone, a medium-temperature zone and a low-temperature zone from the 1 st layer to the 1 st layer along the direction from the tail gas inlet to the tail gas outlet
Figure BDA0003514066080000031
The layer is a high temperature region
Figure BDA0003514066080000032
Is laminated to
Figure BDA0003514066080000033
The layer is a medium temperature zone
Figure BDA0003514066080000034
The Nth layer is a low-temperature zone; selecting heat pipes with corresponding temperature parameters according to the lowest working temperatures of different temperature zones, dividing the heat pipes into high-temperature zone heat pipes, medium-temperature zone heat pipes and low-temperature zone heat pipes, and mixing the heat pipes with corresponding heatThe end plates are assembled.
As a still further scheme of the invention: the cold-end flat plate comprises 6 platforms, each platform is provided with a square groove with the thickness of 0.1-1mm, the size of each groove is equal to that of the thermoelectric module, the other end of the thermoelectric module is embedded into the square groove, and the positions of the grooves are consistent with those of the hot-end flat plate grooves; 2 circular holes are dug in the side surface of each platform, and the diameter of each circular hole is equal to that of the cold-end heat pipe; the evaporation end of cold junction heat pipe imbeds the round hole, and in addition, the inscribed circle diameter of the cold junction flat board is greater than the dull and stereotyped biggest inscribed circle diameter of hot junction, prevents that the cold junction flat board and the flat board of hot junction from contacting and producing calorific loss.
As a still further scheme of the invention: the evaporation end of the cold end heat pipe is positioned in the round hole of the cold end flat plate and is flush with the outlet at one side of the round hole, and the condensation end of the cold end heat pipe is embedded in the radiator; and the working temperature of the cold end heat pipe is equal to the temperature of the cooling liquid.
As a still further scheme of the invention: the radiator is internally provided with a cooling liquid flow channel, the flow direction of the cooling liquid is opposite to that of the tail gas, round holes are distributed on two sides of the cooling liquid flow channel, the condensation end of the cold end heat pipe is embedded into the round holes, and the positions of the round holes are consistent with the positions of the round holes of the cold end flat plate.
Compared with the prior art, the invention has the beneficial effects that: the high-temperature tail gas heat pipe comprises a hot end heat pipe and a cold end heat pipe, wherein the hot end heat pipe is partitioned according to the temperature drop of tail gas and is respectively matched with heat pipes with different working temperatures, so that high-efficiency heat transfer between the high-temperature tail gas and a hot end flat plate is realized, the cold end heat pipe is connected with a cold end flat plate and a radiator, heat is taken away by cooling liquid in the radiator, and a larger temperature difference between two ends of a thermoelectric module is realized; in addition, the hot end flat plate and the cold end flat plate are both in a hexagonal design and are assembled through a laminated design, so that the space utilization rate of the automobile temperature difference power generation device is improved, the defect that the radial heat conduction capability of the traditional structure is poor is overcome, the output power is greatly improved, and the development and application of the automobile temperature difference power generation device are promoted.
Drawings
FIG. 1 is a front view of a laminated automotive thermoelectric power generation device integrated with heat pipes.
FIG. 2 is a top view of a stacked thermoelectric power generation device for an automobile integrated with heat pipes.
FIG. 3 is a left side view of the laminated automotive thermoelectric power generation device integrated with heat pipes.
FIG. 4 is a front view of the hot side plate and hot side heat pipe after assembly.
FIG. 5 is a top view of the hot side plate and hot side heat pipe after assembly.
FIG. 6 is a front view of the cold end plate and cold end heat pipe assembled.
FIG. 7 is a top view of an assembled cold end plate and cold end heat pipes.
Wherein: 1-tail gas inlet end cover, 2-cold end flat plate, 3-hot end flat plate, 4-thermoelectric module, 5-cold end heat pipe, 6-radiator, 7-hot end heat pipe and 8-tail gas outlet end cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1 to 7, a laminated automobile thermoelectric power generation device integrated with heat pipes includes:
the tail gas inlet end cover 1 is used for inputting tail gas of an engine;
the cold end flat plate 2 is used for balancing the temperature input by the cold end heat pipe 5;
the hot end flat plate 3 is used for balancing the temperature input by the hot end heat pipe 7;
the thermoelectric module 4 is used for converting and generating electric energy according to the temperature difference between the cold-end plate 2 and the hot-end plate 3;
the cold end heat pipe 5 is used for transmitting heat to the cold end flat plate 2;
the radiator 6 is used for accelerating the heat dissipation of the cold-end flat plate 2 through cooling liquid;
the hot end heat pipe 7 is used for transmitting heat to the hot end flat plate 3; partitioning according to the temperature of the tail gas, wherein the temperature parameters of the heat pipes in different areas are different, and the heat loss in the tail gas transmission process is matched;
a tail gas outlet end cover 8; used for discharging the tail gas of the engine;
dull and stereotyped 3 and the dull and stereotyped 2 of cold junction of hot junction are the hexagon structure, and thermoelectric module 4 is located six edges of the dull and stereotyped 3 of hot junction and the dull and stereotyped 2 of cold junction and presss from both sides between the two, and the number of the dull and stereotyped 3 of hot junction is M, and the number of the dull and stereotyped 2 of cold junction is M +1, and thermoelectric module 4's number is 12M, and cold junction heat pipe 5's evaporating end imbeds cold junction dull and stereotyped 2, cold junction heat pipe 5's condensation end fixed connection radiator 6, and hot junction heat pipe 7's condensation end imbeds hot junction dull and stereotyped 3.
In this embodiment: referring to fig. 1 to 7, the laminated automobile thermoelectric power generation device integrated with heat pipes has a laminated structure as a whole, and includes N layers of units, where N is equal to M, the 1 st layer of unit is close to the exhaust gas inlet end cover 1, the nth layer of unit is close to the exhaust gas outlet end cover 8, and each layer of unit includes 1 hot end plate 3, 12 thermoelectric modules 4, and 2 cold end plates 2; the i (i-1, 2,3, … …, N-1) layer unit and the i +1 layer unit share one cold end flat plate 2, and the number of layers N is equal to the length of a space where an automobile exhaust system can be placed divided by the height H of a single-layer unit.
Step 1, determining the number of layers N of the laminated automobile thermoelectric power generation device integrated with the heat pipe, taking a traditional car with 1.8L displacement as an example, the length of a space where an automobile exhaust system can be placed is 540mm, the height of a single-layer unit is 23.6mm, namely H is 23.6mm, and the number of layers N is equal to 22; wherein, the height of hot junction flat plate 3 and cold junction flat plate 2 can be set to 9mm, and the height of thermoelectric module 4 is set to 3.8 mm.
Step 2, determining basic structural parameters of a hot-end flat plate 3, taking a thermoelectric module 4 with the length and width of 40mm and a heat pipe with the diameter of 6mm as an example, namely L is 40 mm; the hot-side plate 3 comprises 6 platforms, each platform is provided with a square groove with the thickness of 0.5mm, the size of each groove is equal to that of the thermoelectric module 4, namely the length and the width of each groove are 40mm, and the positions of the thermoelectric modules 4 are limited; in addition, 2 round holes are dug on each platform along the radial direction, the diameter of each round hole is equal to the diameter of a hot end heat pipe 7, namely 6mm, the distance from the center position of each round hole to the right boundary of the groove is 8mm, and the distance from the center position of each round hole to the left boundary of the groove is 12 mm.
Step 3, determining the assembly parameters of the hot end flat plate 3, wherein the inner side of the hot end flat plate 3 is provided with a baffle with the height equal to 8mm, namely
Figure BDA0003514066080000051
The thickness is 2 mm; (ii) a Considering that the inner diameter of the engine exhaust pipe is 50mm and the diameter of the inscribed circle of the ith layer of hot end flat plate 3 is 86mm in order to ensure enough heat pipe arrangement space, the diameter of the inscribed circle of the (i + 1) th layer of hot end flat plate 3 is 84 mm; the condensing end of the hot end heat pipe 7 is arranged in the round hole of the hot end flat plate 3 and is flush with the outlet at the outer side of the round hole, and the evaporating end is arranged in the tail gas channel; in addition, the (i + 1) th layer hot end flat plate 3 and the (i) th layer hot end flat plate 3 are assembled in an upside-down mode, a sealing environment of an exhaust gas flow channel is formed by utilizing the fact that the baffles are mutually staggered, and the corresponding (i + 1) th layer hot end heat pipe 7 and the corresponding (i) th layer hot end heat pipe 7 are mutually staggered to improve heat exchange between the exhaust gas and the hot end heat pipe 7.
Step 4, determining partition parameters of the hot end heat pipe 7, and assuming that the inlet temperature of the tail gas is 400 ℃, the temperature is reduced to 120 ℃, and the temperature is uniformly reduced along the flow of the tail gas; the hot end heat pipe 7 is subjected to partition treatment according to the temperature environment, and sequentially comprises a high-temperature area, a medium-temperature area and a low-temperature area along the direction from a tail gas inlet to a tail gas outlet, namely the high-temperature area is arranged from the 1 st layer to the 7 th layer, the medium-temperature area is arranged from the 7 th layer to the 14 th layer, and the low-temperature area is arranged from the 14 th layer to the 22 th layer; the heat pipes with corresponding temperature parameters are selected according to the lowest working temperatures of different temperature areas and are divided into high-temperature area heat pipes, medium-temperature area heat pipes and low-temperature area heat pipes, namely the working temperature of the high-temperature area heat pipes is 360 ℃, the working temperature of the medium-temperature area heat pipes is 320 ℃, and the working temperature of the low-temperature area heat pipes is 280 ℃, and the heat pipes are assembled with corresponding hot end plates 3.
Step 5, determining basic structural parameters of the cold end flat plate 2, taking a cold end heat pipe 5 with the diameter of 6mm as an example; the cold-end flat plate 2 comprises 6 platforms, each platform is provided with a square groove with the thickness of 0.5mm, the size of each groove is equal to that of the thermoelectric module 4, namely the length and the width of each groove are 40mm, the positions of the thermoelectric modules 4 are limited, and the positions of the grooves are consistent with those of the grooves of the hot-end flat plate 3; 2 circular holes are dug in the side surface of each platform, and the diameter of each circular hole is equal to that of the cold end heat pipe 5, namely 6 mm; in addition, the diameter of the inscribed circle of the cold end plate 2 is larger than the maximum inscribed circle diameter of the hot end plate 3, namely, larger than 86mm, the thickness of the baffle plate of the hot end plate 3 is different from the diameter of the inscribed circle of the hot end plate 3, namely, the diameter of the inscribed circle of the cold end plate 2 is 88mm, so that the cold end plate 2 is prevented from contacting with the hot end plate 3 to generate heat loss (the difference between the diameter of the inscribed circle of the hot end plate of the ith layer and the diameter of the inscribed circle of the hot end plate of the (i + 1) th layer is 2mm, namely, the thickness of the baffle plate, the value cannot be too small, so that the contact is prevented from being generated by assembly errors, and cannot be too large, so that the arrangement of the thermoelectric generation module is prevented from being influenced, and the range of 1-3mm is required, so that the diameter of 2mm is taken.
Step 6, determining basic parameters of the cold end heat pipe 5, taking the temperature of the engine coolant as 90 ℃ as an example; the evaporation end of the cold end heat pipe 5 is positioned in the round hole of the cold end flat plate 2 and is flush with the outlet at one side of the round hole, and the condensation end of the cold end heat pipe 5 is inserted into the radiator 6; in addition, the working temperature of the cold end heat pipe 5 is equal to the temperature of the cooling liquid, i.e. 90 ℃.
And 7, determining basic parameters of the radiator 6, wherein a cooling liquid flow channel is arranged in the radiator 6, the flow direction of the cooling liquid is opposite to that of the tail gas, round holes are distributed on two sides of the cooling liquid flow channel and used for being connected with the cold end heat pipe 5, and the positions of the round holes are consistent with those of the round holes of the cold end flat plate 2.
The automobile temperature difference power generation device with the integrated heat pipes comprises 22 hot end plates 3, 23 cold end plates 2, 264 thermoelectric modules 4, 42 high-temperature-region hot end heat pipes 7, 42 medium-temperature-region hot end heat pipes 7, 48 low-temperature-region hot end heat pipes 7 and 132 cold end heat pipes 5. In order to improve the heat exchange capacity of the device and reduce the weight, the hot end flat plate 3 and the cold end flat plate 2 are made of aluminum materials, and the hot end heat pipe 7 and the cold end heat pipe 5 are made of copper heat pipes. The whole device is assembled in a laminated mode through bolts and other members and is connected with the automobile exhaust pipe through the inlet end cover and the outlet end cover.
The working principle of the invention is as follows: engine exhaust is input from an exhaust inlet end cover 1, the engine exhaust is discharged from an exhaust outlet end cover 8 through a multilayer structure, the exhaust transfers heat through a hot end heat pipe 7, the hot end heat pipe 7 transfers the heat to a hot end flat plate 3, meanwhile, a cold end flat plate 2 is matched with a radiator 6 through a cold end heat pipe 5, so that the temperature of the cold end flat plate 2 is lower, the temperature difference between the hot end flat plate 3 and the cold end flat plate 2 output to a thermoelectric module 4 is larger, and electric energy is generated according to the thermoelectric effect; the temperature is gradually reduced along with the tail gas passing through the hot end heat pipe 7, so that the temperature parameter of the hot end heat pipe 7 selected at the lower layer is reduced along with the temperature, and the tail gas is fully utilized by matching with the corresponding hot end platform.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. The utility model provides a range upon range of formula car thermoelectric generation device of integrated heat pipe which characterized in that:
the laminated automobile temperature difference power generation device integrated with the heat pipe comprises:
the tail gas inlet end cover is used for inputting tail gas of the engine;
the cold end flat plate is used for balancing the temperature input by the cold end heat pipe;
the hot end flat plate is used for balancing the temperature input by the hot end heat pipe;
the thermoelectric module is used for converting and generating electric energy according to the temperature difference between the cold end plate and the hot end plate;
the cold end heat pipe is used for transmitting heat to the cold end flat plate;
the radiator is used for accelerating the heat dissipation of the cold-end flat plate through the cooling liquid;
the hot end heat pipe is used for transmitting heat to the hot end flat plate; partitioning according to the temperature of the tail gas, wherein the temperature parameters of the heat pipes in different areas are different, and the heat loss in the tail gas transmission process is matched;
a tail gas outlet end cover; used for discharging the tail gas of the engine;
dull and stereotyped hexagonal structure of being of hot junction and cold junction, thermoelectric module are located six edges that hot junction is dull and stereotyped and cold junction is dull and stereotyped and press from both sides between the two, and the dull and stereotyped number of hot junction is M, and the dull and stereotyped number of cold junction is M +1, and thermoelectric module's number is 12M, and the evaporation end embedding cold junction of cold junction heat pipe is dull and stereotyped, and the condensation end fixed connection radiator of cold junction heat pipe, the condensation end embedding hot junction of hot junction heat pipe are dull and stereotyped.
2. The heat pipe integrated stacked automobile thermoelectric generation device according to claim 1, wherein the heat pipe integrated stacked automobile thermoelectric generation device integrally has a stacked structure and comprises N layers of units, wherein N is M, the 1 st layer of unit is close to an exhaust inlet end cover, the nth layer of unit is close to an exhaust outlet end cover, and each layer of unit comprises 1 hot end plate, 12 thermoelectric modules and 2 cold end plates; the unit on the ith layer and the unit on the (i + 1) th layer share one cold end flat plate, i is less than or equal to N-1, and the number N of layers is equal to the length of a space where an automobile exhaust system can be placed divided by the height H of the single-layer unit.
3. The stacked automotive thermoelectric generation device with integrated heat pipes as claimed in claim 1 or 2, wherein the hot-side plate comprises 6 stages, and each stage has a square groove with a thickness of 0.1-1mm, the size of the groove is equal to that of the thermoelectric module, and the thermoelectric module is embedded in the square groove; in the radial direction, each platform is provided withThere are 2 round holes, the diameter of the round hole is equal to that of the hot end heat pipe, and the distance from the center of the round hole to the right boundary of the groove is
Figure FDA0003514066070000011
A distance from the left boundary of the groove of
Figure FDA0003514066070000021
Wherein L is equal to the length of the thermoelectric module.
4. The stacked automotive thermoelectric generation device with integrated heat pipes as claimed in claim 2, wherein the inner side of the hot end plate is provided with a baffle with a height K,
Figure FDA0003514066070000022
the diameter of the inscribed circle of the (i + 1) th layer hot end flat plate is equal to the diameter of the inscribed circle of the (i) th layer hot end flat plate minus the thickness of the baffle plate; the condensation end of the hot end heat pipe is embedded into the round hole of the hot end flat plate and is flush with the outer outlet of the round hole, and the evaporation end is arranged in the tail gas flow channel; and the (i + 1) th layer hot end flat plate and the (i) th layer hot end flat plate are assembled in an upside-down mode, and a sealed environment of an exhaust runner is formed by utilizing the fact that the baffles are mutually staggered.
5. The heat pipe integrated stacked automobile thermoelectric generation device according to claim 1, wherein the hot end heat pipe is subjected to zone treatment according to the temperature environment, and sequentially comprises a high temperature zone, a medium temperature zone and a low temperature zone from layer 1 to layer 1 along the direction from the exhaust gas inlet to the exhaust gas outlet
Figure FDA0003514066070000023
The layer is a high temperature region
Figure FDA0003514066070000024
Is laminated to
Figure FDA0003514066070000025
The layer is a medium temperature zone
Figure FDA0003514066070000026
The Nth layer is a low-temperature zone; and selecting hot end heat pipes with corresponding temperature parameters according to the lowest working temperatures of different temperature areas, dividing the hot end heat pipes into high temperature area heat pipes, medium temperature area heat pipes and low temperature area heat pipes, and assembling the hot end heat pipes and corresponding hot end flat plates.
6. The heat pipe integrated stacked automotive thermoelectric generation device of claim 3, wherein the cold-side plate comprises 6 platforms, each platform has a square groove with a thickness of 0.1-1mm, the size of the groove is equal to that of the thermoelectric module, the other end of the thermoelectric module is embedded in the square groove, and the position of the groove is consistent with that of the hot-side plate groove; 2 circular holes are dug in the side surface of each platform, and the diameter of each circular hole is equal to that of the cold-end heat pipe; the evaporation end of the cold end heat pipe is embedded into the round hole; the diameter of the inscribed circle of the cold end flat plate is larger than the diameter of the maximum inscribed circle of the hot end flat plate.
7. The stacked automobile thermoelectric power generation device with integrated heat pipes as claimed in claim 1 or 6, wherein the evaporation end of the cold end heat pipe is located inside the circular hole of the cold end flat plate and is flush with the outlet on one side of the circular hole, and the condensation end is embedded inside the radiator.
8. The stacked automotive thermoelectric power generation device with integrated heat pipes as claimed in claim 1, wherein the heat sink has a coolant flow channel inside, the coolant flow direction is opposite to the exhaust flow direction, round holes are distributed on two sides of the coolant flow channel, the condensing end of the cold end heat pipe is embedded into the round holes, and the position of the round holes is consistent with the position of the round holes on the cold end flat plate.
CN202210159860.4A 2022-02-22 2022-02-22 Laminated automobile temperature difference power generation device integrated with heat pipe Pending CN114499278A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210159860.4A CN114499278A (en) 2022-02-22 2022-02-22 Laminated automobile temperature difference power generation device integrated with heat pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210159860.4A CN114499278A (en) 2022-02-22 2022-02-22 Laminated automobile temperature difference power generation device integrated with heat pipe

Publications (1)

Publication Number Publication Date
CN114499278A true CN114499278A (en) 2022-05-13

Family

ID=81482055

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210159860.4A Pending CN114499278A (en) 2022-02-22 2022-02-22 Laminated automobile temperature difference power generation device integrated with heat pipe

Country Status (1)

Country Link
CN (1) CN114499278A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115387887A (en) * 2022-08-29 2022-11-25 吉林大学 Automobile exhaust waste heat recovery system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115387887A (en) * 2022-08-29 2022-11-25 吉林大学 Automobile exhaust waste heat recovery system
CN115387887B (en) * 2022-08-29 2023-09-12 吉林大学 Automobile exhaust waste heat recovery system

Similar Documents

Publication Publication Date Title
CN107346814B (en) Battery thermal management system
CN106848496B (en) Fuel cell tramcar waste heat recovery system based on thermoelectric generation
CN110077286B (en) Thermal management system of fuel cell automobile
CN109037726B (en) Air-cooled module for heat transfer and temperature equalization of fuel cell
CN110854465B (en) Battery box heat management system considering heat recovery and control method thereof
Kajino et al. Research and development of automotive heat exchangers.
CN108347199B (en) Flat plate type thermoelectric generator and thermoelectric generation assembly partition arrangement method thereof
CN207368172U (en) A kind of battery pack thermal management system using phase-change material
CN104538700A (en) Flat micro heat pipe cooling device inserted in power battery for vehicle and cooling method of device
CN101603473A (en) The waste heat recovery plant of utilization Stirling engine
CN112599888A (en) Battery thermal management system based on combination of flat pulsating heat pipe and liquid cooling system and temperature control method
CN201369695Y (en) Waste heat temperature difference electricity generating device of internal combustion engine/automobile engine exhaust system
CN108808160A (en) High intensity heat transfer structure for cooling down power battery
CN114499278A (en) Laminated automobile temperature difference power generation device integrated with heat pipe
CN106785236A (en) The heat management system and method for cylindrical cell group
CN209496981U (en) A kind of cooling structure of battery modules
CN109274292A (en) A kind of thermo-electric generation system using waste gas residual heat
CN203660019U (en) Automotive battery pack heat dissipation structure and electric automobile
CN106602170A (en) Variable contact-type battery heat management system
CN202889255U (en) Energy recovering and supplying system of hybrid electric vehicle
CN113067054B (en) Battery based on phase-change material coupling fin and battery thermal management system thereof
CN218919028U (en) Refrigerant cooling pipe for battery cells and battery cell grouping structure
CN113285138B (en) Automobile battery liquid cooling heat dissipation device based on steam cavity heat dissipation technology
CN111917335B (en) Non-uniform flow velocity composite thermoelectric generator based on thermoelectric material temperature dependency
CN204441415U (en) The flat micro heat pipe heat abstractor of a kind of Vehicular dynamic battery interpolation

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination