WO2011082803A2 - Module thermo-électrique, ensemble avec module, générateur thermo-électrique et dispositif de conduite de gaz brûlés avec générateur - Google Patents

Module thermo-électrique, ensemble avec module, générateur thermo-électrique et dispositif de conduite de gaz brûlés avec générateur Download PDF

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Publication number
WO2011082803A2
WO2011082803A2 PCT/EP2010/007758 EP2010007758W WO2011082803A2 WO 2011082803 A2 WO2011082803 A2 WO 2011082803A2 EP 2010007758 W EP2010007758 W EP 2010007758W WO 2011082803 A2 WO2011082803 A2 WO 2011082803A2
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WO
WIPO (PCT)
Prior art keywords
thermoelectric
module
housing
channel
elements
Prior art date
Application number
PCT/EP2010/007758
Other languages
German (de)
English (en)
Other versions
WO2011082803A3 (fr
Inventor
Martin Adldinger
Wolfgang Hahnl
Marco Ranalli
Christian Vitek
Robin Willats
Original Assignee
Faurecia Emissions Control Technologies, Germany Gmbh
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
Priority claimed from DE102009058550A external-priority patent/DE102009058550A1/de
Application filed by Faurecia Emissions Control Technologies, Germany Gmbh filed Critical Faurecia Emissions Control Technologies, Germany Gmbh
Priority to US13/516,815 priority Critical patent/US20120297755A1/en
Publication of WO2011082803A2 publication Critical patent/WO2011082803A2/fr
Publication of WO2011082803A3 publication Critical patent/WO2011082803A3/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
    • F01N3/2867—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing the mats or gaskets being placed at the front or end face of catalyst body
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
    • F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
    • F01N5/025—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat the device being thermoelectric generators
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
    • H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
    • H10N10/13—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the heat-exchanging means at the junction
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
    • H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
    • H10N10/17—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the structure or configuration of the cell or thermocouple forming the device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/02—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/28—Methods or apparatus for fitting, inserting or repairing different elements by using adhesive material, e.g. cement
    • 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

Definitions

  • thermoelectric module module with module
  • thermoelectric generator unit thermoelectric generator unit
  • thermoelectric module in particular for a thermoelectric generator unit, which i.a. in an exhaust pipe device, in particular for an internal combustion engine, can be used.
  • Thermoelectric modules are devices that convert thermal energy into electrical energy. They include thermoelectric elements operating according to the Seebeck effect or according to the Peltier effect, in which an electrical voltage is generated on account of the specific material pairing of different metals or different semiconductor materials used and the temperature difference prevailing over the thermoelectric element. In this way it is possible, for example, to exploit the heat energy of the exhaust gas flow to generate electrical energy.
  • thermoelectric module The different thermal expansion coefficients of the individual components of a thermoelectric module must be compensated, as well as a uniform, sufficient, but not excessive contact pressure between the individual components must be ensured in order to ensure optimum heat transfer from the hot exhaust gas to the thermoelectric elements.
  • the object of the invention is to propose a simple and cost-effective solution for the construction of a thermoelectric module.
  • thermoelectric module having a plurality of thermoelectric elements connected in series, which are arranged between a module housing plate defining a high temperature side and a module housing plate defining a low temperature side, wherein at least one elastic compensation element is provided laterally next to the thermoelectric elements and to the end faces of the module housing plates , in particular a mat, is provided, which has a lateral holding force on the thermal exerts electrical elements and extends from one to the other inner side of the opposite module housing plates.
  • the elastic compensation element is preferably made of a large-area, thin part, in particular a mat, such as a known bearing mat, as used in the installation of catalyst substrates, or a fiber mat of a suitable material.
  • the fiber mat can be, for example, a nonwoven, a knitted fabric, a knitted fabric, but also a woven fabric, for example from a steel wire.
  • thermoelectric elements The group of juxtaposed thermoelectric elements is accommodated between the laterally arranged elastic compensating elements.
  • these provide the bias voltage which keeps the unit of thermoelectric elements and possibly intermediate heat-conducting elements in close thermal contact, but on the other hand offer enough flexibility to compensate for different thermal expansions.
  • the holding force exerted by the compensating elements is directed parallel to the module housing plates. In this way, a compact thermoelectric module can be created with low material costs, which has a high life expectancy.
  • the module housing plates are part of a module housing which completely surrounds the thermoelectric elements and the elastic compensation element.
  • This can be a completely encapsulated module create in the damage and contamination of the thermoelectric elements are prevented. All that is required is for the electrical connection cables to be led out of the module housing.
  • thermoelectric elements can advantageously be used plate-shaped elements which extend, for example, substantially with its flat side at right angles to the module housing plates. The temperature difference can run perpendicular to the module housing plates or, when using suitable heat conducting elements, parallel to it. The heat-conducting elements transport the heat from the module housing plates to the flat sides of the elements running perpendicular thereto.
  • thermoelectric elements are preferably arranged so that the end faces of adjacent p- and n-conducting elements are connected via an electrically and thermally conductive bridge, which is in contact with the inside of the module housing plates. Between the individual thermoelectric elements then preferably electrically insulating filler body are provided.
  • the invention also relates to an assembly of a thermoelectric module and a heat exchanger element.
  • thermoelectric module Good heat transfer between the hot / cold medium and the high or low temperature side of the thermoelectric module is essential to make the best possible use of the heat energy of the medium.
  • the object of the invention is also to propose an improvement in this point.
  • thermoelectric module with a high-temperature side and a low-temperature side and at least one arranged on the high-temperature side and / or the low-temperature side of the thermal module heat exchanger element, that the heat exchanger element is connected by gluing to the thermoelectric module.
  • An adhesive bond in particular a large-area or full-surface bonding, between the high-temperature or low-temperature side of the thermoelectric module and the heat exchanger element creates a very good heat conductive connection over the entire surface of the two components.
  • the bond provides a secure hold and makes additional mechanical fasteners unnecessary. This also reduces the manufacturing time and the cost of the assembly.
  • Such an assembly can be used for example in a thermoelectric module described above or an exhaust pipe system explained below, but also regardless of the embodiments described herein generally in any heat exchanger in which a part of the heat energy to be converted into electrical energy.
  • the construction is suitable both for heat exchangers working with liquids and for those working with a gaseous medium.
  • the adhesive is preferably a glass or ceramic adhesive, wherein, for example, in particular for the connection with the high-temperature side, a glass solder, a glass-containing adhesive or a ceramic adhesive based on alumina, aluminum oxynitride or boron nitride are used. Such adhesives ensure long-term safe connection even at high temperatures.
  • the adhesive may also be a two-part adhesive, such adhesive preferably being used for the low temperature side bond.
  • a combination of a silane-terminated polymer and a synthetic resin can be used, as it is commercially available under the name collane RS 8500.
  • the heat exchanger element has protruding ribs, as known from conventional heat exchangers.
  • Such a construction is suitable both for the arrangement on the high-temperature side and for the arrangement on the low-temperature side.
  • the heat exchanger element may for example consist of a folded metal foil. This allows a fast and cost-effective production.
  • the metal foil can also take over the role of the module housing, so that it is possible to dispense with separate module housing plates between the thermoelectric elements and the heat exchanger element.
  • the ribs are preferably formed by folding in the metal foil.
  • flat pieces are formed between the ribs which are in contact with the thermoelectric module. Substantially the heat transfer from the heat exchanger element to the thermoelectric module takes place via the flat pieces.
  • the adhesive is provided only between the sheets and the thermoelectric module. The film sections that form the ribs, however, are not fixed to each other.
  • the adhesive can also be provided on the entire metal foil, which offers the advantage that for production, the metal foil can be completely coated with adhesive before the metal foil is folded and the heat exchanger element is attached to the thermoelectric module. It is also possible to provide the adhesive on the flat pieces only in the region of the electrical connection of adjacent thermoelectric elements of the thermoelectric module, ie in the region of the bridges. The thermoelectric elements and the packing arranged between them have different thermal expansion coefficients, and the different changes in length can be compensated by this arrangement.
  • the invention also relates to a thermoelectric generator unit, in particular for coupling to an exhaust pipe of an internal combustion engine.
  • thermoelectric generator unit By means of the thermoelectric generator unit, electrical energy can be obtained from the heat energy of the exhaust gas, which can be used, for example, for the electrical consumers in the vehicle.
  • the object of the invention is also to propose a simple and inexpensive construction for a thermoelectric generator unit.
  • thermoelectric generator unit in particular for coupling to an exhaust pipe of an internal combustion engine, a generator housing is provided, in which at least one elastic compensation element, in particular a mat, and at least one thermoelectric module are accommodated, the thermoelectric module having a high temperature side and a low-temperature side and comprises a plurality of thermoelectric elements combined into a unit, wherein the generator housing via the elastic compensation element exerts a bias on the thermoelectric module to clamp it in the generator housing.
  • the clamping force reduces or eliminates air gaps and ensures secure mounting of the modules.
  • thermoelectric module one of the thermoelectric modules described above.
  • one of the assemblies described above can be used in the thermoelectric generator unit.
  • the elastic compensation element is in the present application for all applications in particular a large-area, thin component and can be formed for example by a bearing mat or a fiber mat, as already described, the elastic compensation element can be a contact pressure on a flat side of the plate-shaped thermoelectric module exercise and can, for example, in this concern. It causes a sufficient bias voltage at different manufacturing tolerances of all installed parts and a force balance, so that the thermoelectric module is always kept safe even at changing temperatures, but without too much force acting on it in the generator housing. This ensures optimum heat transfer and the thermoelectric module is safe from mechanical overloads.
  • the heat energy of the exhaust gas is used directly by the thermoelectric generator unit is formed so that it is inserted into the exhaust gas flow and flows through it.
  • the thermoelectric generator unit it would also be possible to pass only part of the exhaust gas flow through the thermoelectric generator unit as needed or to heat another medium via the exhaust gas, which flows through the generator unit.
  • the generator housing can close off the thermoelectric generator unit except for inlet and outlet openings for exhaust gas or another hot medium.
  • thermoelectric module As well as the other components is purely by a clamping in the generator housing. Alternatively, for example, a clamping and simultaneous adhesive connection.
  • the channel elements act simultaneously as a fluid channel and as a heat exchanger by receiving or releasing heat energy from the fluid or thermoelectric module.
  • the one or more channel elements can be stored loosely in the housing and clamped only in the housing via the action of the elastic compensation element and clamped against the thermoelectric module.
  • the hot medium the exhaust gas itself or a gaseous or liquid, heated by the exhaust medium can be used.
  • a cooling medium a cooling fluid such as water or air can be used.
  • the elastic compensation element can be arranged, for example, between at least one channel element and the inside of the generator housing.
  • thermoelectric modules in the generator housing, between which a first channel element or a second channel element is arranged and on whose opposite sides in each case the second channel element or the first channel element is arranged.
  • An assembly of three or even more thermoelectric modules with corresponding channel elements is of course possible.
  • a respective first channel element and a separate second channel element for hot medium or cooling medium can be provided for each thermoelectric module, or a first or second channel element can supply two adjacent thermoelectric modules in each case.
  • the elastic compensation element is preferably arranged between two of the identical channel elements, and the second channel elements, which guide the cooling medium, abut against the insides of the housing in order to be able to release heat to the outside.
  • the arrangement of hot and cold side could be reversed. Both with regard to the clamping effect and with regard to the compensating effect of the elastic compensation element, this can be arranged at different locations in the generator housing. Both an arrangement between an inner side of the generator housing and other components of the thermoelectric generator unit and an arrangement between components of the thermoelectric generator unit remote from the generator housing fulfills the function provided within the scope of the invention.
  • At least one of the channel elements has ribs, which improves heat transfer.
  • a channel element can also be used a heat exchanger element described above. The hot medium or the cooling medium is then passed along the ribs as in known heat exchangers.
  • the channel element may be folded from a metal foil, as described above for the heat exchanger element. It is also possible to form the channel element from a sheet metal with attached ribs in analogy to known heat exchangers.
  • the generator housing has a round, cylindrical shape, and the channel elements form viewed in cross-section circle segments and take between at least one thermoelectric see module on.
  • the thermoelectric module is arranged on the flat sides of the channel elements.
  • thermoelectric generator unit can also be realized by the first and / or the second channel element is formed as a tubular body having a substantially cylindrical peripheral wall with arranged in the circumferential wall of the channel enclosed ribs.
  • the ribs are preferably designed to fill the channel interior of different lengths when the channel interior deviates from the rectangular shape, and preferably extend from a flat to a curved wall. It is possible, in principle, for the entire cross-section of the generator housing, provided that it does not depend on the cross-sectionally narrow thermoelectric see module is subdivided by the ribs of the channel elements into individual narrow channels, so that created for the flowing hot and cold media large contact surfaces with the channel elements.
  • the formation of the flow channels for the hot and cold media is preferably achieved by the channel elements themselves.
  • the ribs can be arranged parallel to one another or in a grid shape.
  • a grid-shaped arrangement has the advantage of high mechanical stability. In both cases, the ribs form only a low flow resistance.
  • the spacing of the ribs may be constant over the cross section of the channel element or vary in adaptation to the respective flow conditions.
  • channel elements are designed as prefabricated parts.
  • the channel elements may simply be made in one piece by an extrusion process of a ceramic material or a metal. They are freely configurable in size and shape to a great extent and can be easily adapted to the respective geometric conditions. In particular, the cross-sectional shape and number and spacing of the ribs can be easily varied. In particular, in this case, it is possible to provide the exhaust gas flow-through channel element with a catalytically active coating.
  • thermoelectric module and channel member may be clamped wrapped in the housing with the flat elastic compensation element.
  • at least one channel element is formed with a flat, in particular rectangular cross section.
  • the channel element is here preferably a tube.
  • At least two subassemblies each comprising a thermoelectric module, a first channel element arranged on the high-temperature side, and a second channel element arranged on the low-temperature side are provided, which are formed by the elastic outlet. the same element separated from each other and biased by the compensating element are clamped in the generator housing.
  • the assemblies are arranged in mirror image, wherein the hot medium leading first channel elements are directed towards each other and the cooling medium leading second channel elements are arranged to the outside of the housing.
  • cooling fins can be provided on the generator housing in order to release heat to the environment and thus to keep the temperature difference over the thermoelectric module as large as possible.
  • thermoelectric modules for forming a plate-shaped layer are arranged side by side, so that thermoelectric generator units can be realized with arbitrary dimensions.
  • the invention also relates to a method for producing a thermoelectric generator unit, as described above.
  • thermoelectric generator unit is to show a way how such a thermoelectric generator unit can be easily and inexpensively manufactured.
  • a generator housing is provided.
  • the channel elements and the at least one thermoelectric module are wrapped with the elastic compensation element to form an assembly, and the assembly is inserted into the housing, so that the assembly is clamped by the housing clamped in the housing.
  • the elastic compensation element surrounds the or the thermoelectric module (s) and the channel elements and is located between the inside of the wall of the generator housing and the channel elements. In this way, the assembly is clamped with uniform force in the generator housing at any point of the circumference, and it is also prevented that too high a force acts on a part of the assembly, for example due to thermal expansion, since the elastic compensation element absorbs the forces and distributed.
  • insertion of the assembly into the generator housing may be accomplished by plugging the assembly into the housing.
  • a housing shell is provided, and the assembly is wrapped with the housing shell, so that a closed housing is formed.
  • This method is a so-called Canningbacter, also called winding process. It is also possible to insert the module in the generator housing and then plastically deform this inwardly from the outside (shrinking). In this case, the generator housing is manufactured with a slight oversize.
  • FIG. 1 shows a schematic sectional view of a thermoelectric module according to the invention
  • FIG. 2 is a schematic sectional view of a module according to the invention with a thermoelectric module and two heat exchanger elements;
  • FIGS. 3 to 6 show different variants of an assembly according to the invention comprising a thermoelectric module and two heat exchanger elements
  • FIG. 7 is a schematic sectional view of a thermoelectric generator unit according to the invention according to a first embodiment
  • FIG. 8 shows a schematic sectional view of a thermoelectric generator unit according to the invention in accordance with a second embodiment
  • FIGS. 9 and 10 show two further embodiments of a thermoelectric generator unit according to the invention.
  • - Figure 11 is a schematic perspective view of a thermoelectric generator unit according to the invention according to a third embodiment, wherein the housing is shown partially cut away;
  • thermoelectric generator unit 12 is a schematic perspective view of a thermoelectric generator unit according to the invention according to a fourth embodiment, wherein the housing is shown partially cut away;
  • FIG. 13 is a schematic sectional view of an exhaust pipe device according to the invention with a thermoelectric generator unit of FIG
  • FIGS. 14 to 16 show different views of a thermoelectric generator unit according to the invention according to a further embodiment
  • FIG. 17 shows a section of a thermoelectric generator unit according to the invention in accordance with a further embodiment
  • FIG. 18 shows a schematic sectional view of a section of a thermoelectric generator unit according to the invention in accordance with a further embodiment.
  • FIGS. 19 to 22 show several canning methods which can be used according to the invention.
  • FIG. 1 shows a thermoelectric module 10 having a plurality of individual thermoelectric elements 12 arranged side by side and electrically connected in series and consisting of known, suitable semiconductor materials or metals.
  • the individual thermoelectric elements 12 are plate-shaped and arranged side by side upright, alternating, as in known modules, p-type and n-type elements.
  • the elements 12 are arranged perpendicular to a first module housing plate 14 and a parallel second module housing plate 16.
  • the first the module housing plate 14 defines a low-temperature side of the thermoelectric module 10 and the second module housing plate 16 defines a high-temperature side of the thermoelectric module 10.
  • the module housing plates consist in this example of a ceramic see insulator, which has the best possible thermal conductivity.
  • thermoelectric elements 12 Between the individual thermoelectric elements 12 heat conducting elements 18 are arranged from a good heat conducting material such as copper, which are T-shaped and conduct heat from the high temperature side to the thermoelectric elements 12 and heat from the thermoelectric see elements 12 to the low temperature side. This is shown schematically in FIG.
  • the heat-conducting elements 18 are of course arranged so that no thermal bridges between the module housing plates 14, 16 are formed.
  • the vertically extending legs of the heat-conducting elements 18 lie between an n-type and a p-type element.
  • the temperature gradient runs parallel to the module housing plates 14, 16, transversely to the longitudinal extension of the elements 12. For this arrangement, a known per se structure can be selected.
  • thermoelectric modules shown in FIGS. 3 to 6.
  • the individual thermoelectric elements 12 are arranged side by side upright, with p- and n-conducting elements alternating. Between the individual thermoelectric elements 12 each have a filling body 19 is provided made of an electrically insulating material. Adjacent thermoelectric elements 12 are connected at the front sides via an electrically and thermally conductive bridge 21, which is in areal contact with the high or low temperature side of the thermoelectric module 10 'and via which the electrical contact of the thermoelectric elements 12 with one another and secondly, the heat transfer to the thermoelectric elements 12 is achieved.
  • an elastic compensating element 20 is in each case arranged between the module housing plates 14, 16 arranged (optionally in the modules 10 'shown in Figures 3 to 6).
  • the two elastic compensation elements 20 abut here on the end faces of the group of thermoelectric elements 12 and on the inner sides of the end plates 22 of the module housing, wherein the module housing is formed by the module housing plates 14, 16 and the end plates 22.
  • the end plates 22 are made of a material which conducts both electrically and thermally as poorly as possible in order to avoid both electrical short circuits and thermal bridges between the module housing plates 14, 16.
  • the elastic compensation elements 20 exert a laterally directed force F on the thermoelectric elements 12, as illustrated by the arrows in FIG.
  • the elastic compensation elements 20 are formed in this example by pieces of bearing or fiber mats, as used for example as clamping and compensation elements in the fixation of catalyst substrates.
  • the mat may be made, for example, of a knitted, knitted or nonwoven fabric, e.g. consist of a steel wire.
  • the thermoelectric elements 12 are laterally biased and clamped by the mat, may possibly migrate at temperature expansions.
  • the dimensions of the compensating element 20 correspond in height to the spacing of the module housing plate 14, 16, while the width is approximately that of one or more of the thermoelectric elements 12. In length, the compensation element 20 may extend over the entire group of thermoelectric elements 12.
  • the dimensions of the module housing and the elastic compensation elements 20 are selected so that no further fastening elements or clamping elements for the thermoelectric elements 12 in the module housing are necessary.
  • thermoelectric module 10 is completely sealed off from its surroundings and thus protected against environmental influences. Only electrical connections (not shown) extend out of the housing.
  • thermoelectric module 10 is plate-shaped, wherein both module housing plates 14, 16 have a significantly larger areal extent than the distance between the two module housing plates 14, 16th Several thermoelectric modules 10 can be placed in a plane to form a plate-shaped layer, which can be dimensioned substantially arbitrarily. This can be seen, for example, in FIG. In the following, there is no conceptual distinction between a single module and a plate-shaped layer of thermoelectric modules which is actually composed of several individual modules. Both are designated by the reference numerals 10 and 10 '. In fact, any number of modules can be positioned next to one another for all embodiments in order to form a type of layer.
  • FIG. 2 shows an assembly with a thermoelectric module 10 and a first heat exchanger element 24 attached to its high temperature side and a second second heat exchanger element 26 attached to the low temperature side.
  • thermoelectric module 10 can be a thermoelectric module just described or another suitable thermoelectric module, for example a module 10 'as in the embodiments of FIGS. 3 to 6.
  • Both heat exchanger elements 24, 26 are adhesively bonded over a large area to the sides of the housing, in this case the module housing plates 14, 16 of the thermoelectric module 10.
  • the adhesive used should withstand the temperatures to which the assembly is exposed and should be as heat-conducting as possible.
  • the adhesive between the low-temperature side of the thermoelectric module 10 and the first heat exchanger element 24 consists of a layer 28 of a suitable two-component adhesive.
  • a suitable two-component adhesive for this purpose, for example, a compound of a silane-terminated polymer and a synthetic resin in question, as it is available under the brand name collano RS 8500.
  • the adhesive layer 30 between the module housing and the second heat exchanger element 26 is formed by a glass or ceramic adhesive in this example.
  • Suitable adhesives are, for example, glass-based adhesives, glass solder or ceramic adhesives based on aluminum oxide, aluminum oxynitride or boron nitride.
  • Each of the two heat exchanger elements 24, 26 consists e.g. from a metal foil which is folded in such a way that a multiplicity of individual flat ribs 32 projecting perpendicularly to the thermoelectric module 10 and formed perpendicular to the thermoelectric module 10 are formed. Between these ribs 32 flows the cold or hot medium.
  • the flat pieces 27 are directed to the housing side of the thermoelectric module 10 and bonded thereto.
  • the film sections which form the ribs can lie flat against each other and optionally glued together, so that the flat pieces 27 essentially form a continuous surface.
  • FIGS. 3 to 6 show different variants of such an assembly.
  • the thermoelectric module 10 ' dispenses with separate module housing plates. This function is taken over by the heat exchanger elements 24, 26. These consist, as already described above, each of a one-piece metal foil which is folded so that ribs 32 with intermediate flat pieces 27 are formed.
  • the heat exchanger elements 24, 26 are bonded directly to the high-temperature or low-temperature side of the thermoelectric module 10 '.
  • an adhesive layer 28, 30 is provided only in the region of the flat pieces 27, while metal foil is not glued in the region of the ribs 32.
  • the adhesive layer 28, 30 is provided on the entire metal foil, so that the two side surfaces of the individual ribs 32 are also adhesively bonded to each other.
  • the respective adhesive is applied over a large area to the foil, e.g. by spraying, and then the film is folded and adhered to the high and low temperature side of the thermoelectric module 10 '.
  • FIG. 5 shows a variant in which the adhesive layer 28, 30 is provided in the region of the flat pieces 27 only via the bridges 21 between the thermoelectric elements 12 in order to obtain the different coefficients of thermal expansion of the thermoelectric elements 12 and the filling bodies 19. wear.
  • the side surfaces of the ribs 32 may be glued together ( Figure 5 below) or not ( Figure 5 above).
  • the distances of the ribs 32 and thus the width of the flat pieces 27 vary depending on the length of the bridges 21 and the packing 19.
  • the heat exchanger elements 24, 26 may also be formed as in the case of the variant in Figure 6 that they thermoelectric module 10 'completely enclose and thus not only fulfill the function of the module housing plates, but a complete housing.
  • the two heat exchanger elements 24, 26 are designed, for example, with free edge sections 33 and placed around the module 10 'such that the edge sections 33 cover the narrow sides of the module 10' and are welded to one another at a weld 35.
  • heat exchanger elements 24, 26 for example a metal sheet could be provided with further soldered or welded sheet metal pieces forming the fins 32, or the heat exchanger elements 24, 26 could be cast or extruded therewith be made trained ribs.
  • thermoelectric module 10 can be surrounded by a narrow stabilizing element 34, for example also in the form of an elastic compensating element, in order to protect the module against mechanical influences.
  • FIGS. 7 to 12 show various variants of thermoelectric generator units which each have one or more thermoelectric modules 10, which may be identical to the thermoelectric module 10 described above. However, other thermoelectric modules can also be used.
  • thermoelectric generator units are suitable for being used as exhaust gas line devices in the exhaust gas flow of an exhaust pipe, so that they are flowed through directly by the hot exhaust gas. However, it would also be possible to arrange them parallel to an exhaust pipe, so that they are traversed by the exhaust gas as needed, or to transfer the heat from the exhaust gas to a medium, which then flows through the thermoelectric generator units. It is possible to arrange only one or more theoelectric generator units in the exhaust system.
  • thermoelectric generator unit 100 or 200 has a cylindrical, tubular, elongate generator housing 102.
  • thermoelectric module 10 along the diameter of the generator housing 102 is arranged parallel thereto, wherein the width of the thermoelectric module 10 is selected to be slightly smaller than the diameter of the generator housing 102.
  • a first Channel member 104 is arranged, which forms a first, substantially closed channel 106, which is traversed by hot exhaust gas or other hot medium.
  • the first channel element 104 consists of e.g. two parts that are assembled so that they form a fluid-tight channel 106.
  • the first part is modeled in its construction on the above-described heat exchanger elements 24, 26. It is connected to a flat base surface 108 flat with the high temperature side of the thermoelectric module 10, for example glued as described above, and has perpendicularly projecting ribs 32 which project into the channel 106 and provide a large heat transfer surface for the flowing hot medium ,
  • the ribs 32 are adapted to the pipe diameter and vary in their length, so that the entire available cross-section of the ribs 32 is divided. This portion of the channel member 104 may be folded as above for the heat exchanger element 24, 26 from a metal foil.
  • the second part is a cup-shaped wall element 110, which terminates with the base surface 108 and is connected thereto so that the fluid-tight channel 106 is formed.
  • the first channel element 104 ' may also be made in one piece as a cast or extrusion part of a suitable, for example thermally conductive, ceramic, sintered, material or a suitable metal such as stainless steel, cast iron or Made aluminum, as shown in Figures 9 and 10.
  • a suitable for example thermally conductive, ceramic, sintered, material or a suitable metal such as stainless steel, cast iron or Made aluminum, as shown in Figures 9 and 10.
  • the ribs 32 merge integrally into the flat base surface 108 and into the wall element 110.
  • the same material can be used as for the module housing plates 14, 16.
  • As a ceramic material is, for example, a ceramic with an Al 2 0 3 - share of over 80% used. Such a ceramic has a comparable thermal conductivity as stainless steel (about 10-30 W / mK).
  • thermoelectric module An aluminum nitride with a thermal conductivity of more than 100 W / mK or a silicon nitride (15-45 W / mK) can also be used. If the channel elements are made of an electrically insulating ceramic material, they simultaneously protect the thermoelectric module against short circuits.
  • the channel element 104 "is provided in its channel interior with lattice-shaped ribs 32, which intersect at right angles to each other.) Ribs 32 and wall parts are made in one piece with one another The spacing of the ribs 32 and thus the cross-section of the channels formed by them , can be constant, but also vary.
  • the channel element 104 ' is optionally coated on the inside with a catalytically active substance for reacting pollutants contained in the exhaust gas.
  • a second channel element 112, 112 'or 112 is arranged, which in its construction is essentially identical to the first channel element 104, 104' or 104".
  • the second channel element 112 defines a second channel 114 through which a cooling medium such as water, another cooling liquid or air flows, and is connected at its base surface to the low-temperature side of the thermoelectric module 10.
  • the two shell-shaped wall elements 110 of the first and the second channel element 104, 112 abut one another on the stabilization elements 34 of the thermoelectric module 10, so that a force compensation can take place here.
  • the flat base surfaces 108 can take over the task of the module housing plates 14, 16, so that they can be dispensed with in order to achieve a more direct heat transfer.
  • a functional layer for example in the form of a thermal paste or one of the adhesives already described (in the figures by reference numerals 28 and 30 respectively) ,
  • the two channel elements 104, 112 and the intervening thermoelectric module 10 are completely wrapped with an elastic compensation element 20 in the form of a thin flat mat, for example a bearing mat or a fiber mat, as described above.
  • the elastic compensating element 20 is e.g. over the entire circumference in uniform thickness between the inner wall of the generator housing 102 and the outside of the wall elements 110 of the channel elements 104, 112.
  • the slightly compressed elastic compensation element 20 is a firm clamping of the assembly of elastic compensation element 20, channel elements 104, 112 and thermoelectric module 10 achieved in the generator housing 102.
  • the elastic compensation element 20 absorbs forces that result from different coefficients of thermal expansion, thus preventing an excessive force on the channel elements 104, 112 and especially on the thermoelectric module 10.
  • thermoelectric modules 10 are arranged at a distance from one another parallel to the course of the generator housing 102. Their high temperature sides are facing away from each other. On each high temperature side, a first channel member 204 is attached so that it faces the inner wall of the generator housing 102.
  • the first channel elements 204 have the same basic structure as the first channel elements 104 of the embodiment according to FIG. 7.
  • thermoelectric modules 10 face each other, and two second channel elements 212 are attached to the low-temperature sides, which form a common coolant channel 214 in the center of the generator housing 102.
  • Each of the second channel elements 212 has a structure substantially similar to one of the heat exchangers described above. Shear element 24, 26.
  • the ribs 32 of the two second channel element 212 engage each other alternately, but are only so long that still remains a distance from the base surface of the respective other channel element 212 remains.
  • the two second channel elements 212 are connected to one another such that the channel 214 is fluid-tight.
  • the assembly of the two thermoelectric modules and the channel elements is wrapped with an elastic compensation element 20 which lies between the components and the inside of the generator housing 102. All components are held only by clamping in the generator housing 102.
  • thermoelectric generator units 100 For the production of the thermoelectric generator units 100, 200 several methods are presented. In any case, first all to be used thermoelectric modules 10 and channel elements 104, 112 and 204, 212 are brought into the desired arrangement, which they should take later in the generator housing 102. Then these components are circumferentially completely wrapped with the elastic compensation element 20.
  • the assembly is stuffed in the axial direction in the already closed in the circumferential direction, the cylindrical generator housing 102.
  • the generator housing 102 is closed only when introducing the assembly and is initially in front of a bent housing shell. Then, the assembly is wrapped with the housing shell, so that a closed housing is formed.
  • This method is a so-called winding method.
  • the generator housing 102 is made slightly oversized.
  • the housing may be formed of two half-shells which are arranged around the assembly by deforming their edges. be closed or partially plugged together and soldered or welded together.
  • a calibration step can additionally be provided in which the housing diameter is changed and in particular reduced in order to achieve the desired clamping force between the assembly and the inside of the generator housing 102.
  • the channel elements 104-104 ", 108-108” may also have another cross-section, e.g. a rectangular shape, have.
  • the generator housing 102 then has a correspondingly adapted shape. If the channel elements 104-104 ", 108-108" are made of a metal, the compensation element 20 can be dispensed with and the generator housing 102 can be welded or soldered.
  • FIGS. 11 and 12 describe two further embodiments of thermoelectric generator units.
  • a layer structure of plate-shaped thermoelectric modules 10 and plate-shaped channel elements or compensating elements is selected.
  • thermoelectric module 10 is arranged in contact with the lower side of the generator housing 302 in a generator housing 302 with a rectangular cross section so that a low temperature side is in contact with the inside of the generator housing 302 is.
  • a first channel member 304 is arranged in surface contact with the high temperature side.
  • the first channel element 304 is designed as a pipe with a rectangular cross-section.
  • the width of the channel element 304 is selected so that it corresponds approximately to the width of the generator housing 302.
  • the cross section of the channel member 304 has no ribs.
  • an elastic compensation element 20 is arranged in the form of a flat mat. As before, this may be, for example, a bearing mat or a fiber mat.
  • thermoelectric module 10 the channel element 304 and the compensation element 20 completely fill the cross section of the generator housing 302 and are clamped in the generator housing 302 by means of the elastic compensation element 20, as has already been described for the other embodiments.
  • the generator housing 302 has a rectangular cross-section, so that it surrounds the assembly of thermoelectric module 10, channel member 304 and elastic compensation element 20 form fit.
  • thermoelectric module 10 On the lower side of the generator housing 302, shown in FIG. 11, in contact with the low-temperature side of the thermoelectric module 10, conventional cooling fins 332 are formed, via which heat is dissipated to the environment. A separate coolant line is not provided in this case, but could be present.
  • thermoelectric modules 10 are arranged at a distance from each other, their low-temperature sides being directed outwards and their high-temperature sides pointing inwards.
  • a second channel member 412 is disposed on the low-temperature side
  • a first channel member 404 is disposed on the high-temperature side.
  • Both the first and second channel elements 404, 412 are shown here, e.g. are formed as flat tubes of rectangular cross section, as the channel member 304 in the embodiment described in Figure 11.
  • the first channel elements 404 are flowed through by hot medium, while the second channel elements 412 are flowed through by a cooling medium.
  • thermoelectric module 10 The two assemblies of the thermoelectric module 10 and arranged on the high-temperature side and the low-temperature side channel elements 404, 412 are spaced apart by an elastic compensation element 20 in the form of a mat. In the plane of the drawing in FIG. 12 extending in level, all components have substantially the same dimensions.
  • the individual components are stacked in direct contact, as shown schematically in FIG.
  • the two coolant leading second channel elements 412 lie in direct contact with the wall of the generator housing 402.
  • the generator housing 402 has, for each of the second channel elements 412, an inlet 414 and an outlet 416 for the cooling medium.
  • the cooling medium circuit is designed in a known manner and not shown here.
  • thermoelectric generator unit 400 has an inflow opening 420 and an outflow opening 422, respectively, which are shown only in FIG. Exhaust gas or hot medium flows into or out of the thermoelectric generator unit 400 through these openings, or more precisely, into the first channel element 404.
  • the generator housing 402 can enclose all components as shown, but it could also be designed in the form of individual separate brackets.
  • FIGS 14 to 16 show a thermoelectric generator unit 500 containing one of the assemblies of the type described above.
  • a generator housing 102 made of a metal sheet surrounds the assembly and is fixed in a form-fitting manner on the thermoelectric module 10, so that only minimal forces act on the ribs 32.
  • the thermoelectric module divides the generator housing 102 into two channels H, K, wherein one of the channels is flowed through by a hot medium and the other by a cold medium.
  • thermoelectric generator unit shows a further embodiment of a thermoelectric generator unit.
  • a plurality of thermoelectric modules 10 are arranged axially behind one another on a flat wall of a hot gas duct element 604.
  • Each of the modules 10 is connected to its own heat exchanger 624 on its high-temperature side facing the channel element 604.
  • a channel element 612 is arranged on each of the thermoelectric modules 10, whose base area corresponds approximately to that of the module 10.
  • the individual channel elements 612 are connected to one another linearly by line sections which respectively form inlet 614 and outlet 616 for the cooling medium flowing through the channel elements 612.
  • Inlet 614 and outlet 616 of each channel member 612 are staggered at opposite ends to ensure uniform flow.
  • thermoelectric generator unit illustrated in FIG. 18, a plurality of thermoelectric modules 10 are arranged on the flat wall of a channel element 704 through which hot gas flows.
  • an opening 730 is formed below the module 10 in each case.
  • the module 10 is connected on its high temperature side to a heat exchanger element 724, e.g. by gluing. Edge regions of the module 10 or of the heat exchanger element 724 are connected to the edge of the opening 730 in such a way that the opening 730 is gas-tightly sealed with respect to the channel element 704.
  • thermoelectric module 10 Portions of the heat exchanger element 724, here a series of fins 732, protrude into the hot gas flow and transport the heat to the high temperature side of the thermoelectric module 10.
  • a channel element 712 is provided, which is flowed through by a cooling medium.
  • a cooling medium for example, the same arrangement can be selected as described in connection with FIG. 17.
  • the channel element 704 may be formed with a polygonal cross section, wherein on each side thermoelectric modules 10 may be provided. But it can also be designed rectangular.
  • thermoelectric modules 10, heat exchanger elements 724 and channel elements 712 is wrapped with an elastic compensation element 720, here in the form of a bearing mat, and surrounded by a generator housing 702.
  • the assembly of the assembly in the housing 702 is carried out as described above.
  • the edge 740 of the module 10 abuts the outside of the edge of the opening 730, so that the pressing force of the compensation element 720 supports the sealing effect at the edges.
  • thermoelectric modules described is independent of use in any of the described thermoelectric generator units, and these can of course also be used for other purposes than exhaust pipe devices.
  • FIGS. 19 to 22 illustrate the canning methods which can be used according to the invention.
  • the compensating element 20 is placed around the simplified illustrated assembly 800 of the channel elements and thermoelectric modules, and the unit thus obtained is installed in its tailor-made outer casing 102.
  • the prefabricated outer housing 102 is slightly spread and the unit is pushed laterally into the outer housing 102.
  • the outer housing 102 is pressure and / or path controlled closed by the overlapping edges 830, 832 are pushed over one another so far that the dimensions of the resulting outer housing 102 correspond to previously determined values.
  • the closing process takes place on the basis of suitable, previously determined in a control and tailored to the individual assembly 800 and the compensation element 20 parameters. At- closing the overlapping edges are joined, eg welded, folded, soldered or glued.
  • the assembly can also be done by a so-called calibration.
  • a corresponding calibration device is shown in FIG. This includes numerous circular segment-shaped, radially movable jaws 940, which can close to form a ring.
  • the circular cylindrical tubular outer housing 102 is placed, in which the unit is inserted axially.
  • the jaws 940 are then moved radially inward, wherein the values previously determined in the control with respect to the geometry of the outer housing 102 are used.
  • the method illustrated in Figure 21 operates with two or more shells 950, 952 which are telescoped. Again, the shells 950, 952 are controlled away or pressure controlled so far pushed into each other until the inner dimensions correspond to the determined dimensions. The trays 950, 952 are then welded together, folded or soldered, for example. Of course, the shells 950, 952 can also be formed in advance to the desired final dimensions. FIG. 22 symbolizes the so-called plugging.
  • the desired dimensions of the outer housing 102 are determined. Then, a cylindrical outer housing 102 having the desired target diameter and shape is produced. This is done for example by rolling. Subsequently, the unit is stuffed axially into the selected outer housing 102. Of course, corresponding funnel-shaped aids are provided here.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

L'invention concerne un module thermo-électrique (10) qui présente plusieurs éléments thermo-électriques, montés en série, qui sont disposés entre une première plaque de boîtier de module définissant un côté haute température et une seconde plaque de boîtier de module définissant un côté basse température, au moins un élément de compensation élastique étant prévu latéralement à côté des éléments thermoélectriques et en direction des faces avant des plaques de boîtier de module, lequel élément exerce une force de retenue latérale sur les éléments thermo-électriques et s'étend depuis un côté intérieur vers l'autre côté intérieur de la plaque de boîtier de module opposée. Un tel module thermo-électrique (10) est inclus dans un générateur thermo-électrique (100), avec un boîtier de générateur (102), dans lequel sont logés au moins un élément de compensation élastique (20) et au moins un module thermo-électrique (10), le boîtier de générateur (102) exerçant par l'intermédiaire de l'élément de compensation élastique (20) une pré-tension sur le module therm-oélectrique (10).
PCT/EP2010/007758 2009-07-21 2010-12-17 Module thermo-électrique, ensemble avec module, générateur thermo-électrique et dispositif de conduite de gaz brûlés avec générateur WO2011082803A2 (fr)

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DE102009058550.8 2009-12-17
DE102009058550A DE102009058550A1 (de) 2009-07-21 2009-12-17 Thermoelektrisches Modul, Baugruppe mit Modul, thermoelektrische Generatoreinheit und Abgasleitungsvorrichtung mit Generatoreinheit

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WO2014016323A1 (fr) * 2012-07-24 2014-01-30 Valeo Systemes Thermiques Module thermo électrique
WO2014067589A1 (fr) * 2012-11-05 2014-05-08 European Space Agency Procédé de fabrication de modules de conversion thermoélectriques

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DE102012206085A1 (de) * 2012-04-13 2013-10-17 Eberspächer Exhaust Technology GmbH & Co. KG Wärmetauscher
DE102012206085B4 (de) * 2012-04-13 2013-11-21 Eberspächer Exhaust Technology GmbH & Co. KG Wärmetauscher
CN104205384A (zh) * 2012-04-13 2014-12-10 埃贝斯佩歇废气技术合资公司 具有热交换器的热电发电机
US9163545B2 (en) 2012-04-13 2015-10-20 Eberspächer Exhaust Technology GmbH & Co. KG Thermoelectric generator with heat exchanger
WO2014016323A1 (fr) * 2012-07-24 2014-01-30 Valeo Systemes Thermiques Module thermo électrique
FR2994025A1 (fr) * 2012-07-24 2014-01-31 Valeo Systemes Thermiques Module thermo electrique
WO2014067589A1 (fr) * 2012-11-05 2014-05-08 European Space Agency Procédé de fabrication de modules de conversion thermoélectriques

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