KR102109486B1 - Multi-multi-array themoeletric generator and its generating system - Google Patents

Abstract

The present invention is one or more substrates are provided with a passage through which the heat source of the pipe-like passage; A plurality of thermoelectric lines arranged in a circumferential direction around the passageway in the substrate and spaced apart from each other; And a plurality of electrodes connected in correspondence to the plurality of thermoelectric lines, the thermoelectric line comprising a thermocouple composed of plus and minus elements to absorb heat from the heat source to produce electricity, and the thermoelectric line is arranged along the circumferential direction. It is a donut-type thermoelectric power generating apparatus including a plurality of high-temperature contacts adjacent to the passage and, conversely, a plurality of low-temperature contacts spaced apart from the passage.

Description

Donut type thermoelectric power generation module and its device {MULTI-MULTI-ARRAY THEMOELETRIC GENERATOR AND ITS GENERATING SYSTEM}

The present invention relates to a thermoelectric power generation module and its system, and more particularly, to a donut type thermoelectric power generation module and a system capable of controlling voltage and current by manufacturing in multiple multi-row arrangement.

The thermoelectric module uses the Peltier effect and the Seebeck effect, and is an exchange element of heat and electricity that can perform cooling, heating, or power generation. Such a thermoelectric module can easily perform cooling and heating or power generation conversion through electrical polarity conversion.

The hot spot module can obtain electricity by using the temperature difference between both ends of the module due to the Seebeck effect.

These thermoelectric modules are used for cooling or heating and power generation, and can not only provide excellent cooling or heating or power generation effects, but also have a very small volume, and are in the spotlight as next generation cooling or heating and power plants.

Thermoelectric modules are used when the stability of the system, such as an electronic device for cooling, requires a small space for operation, noise prevention, and easy control of temperature. Power generation uses exhaust waste heat, and is used to increase power generation efficiency by converting waste heat energy into electrical energy.

As described above, there is a thermoelectric generator using a thermoelectric module for recovering exhaust waste heat. The thermoelectric power generation device converts thermal energy into electrical energy by using exhaust heat from vehicles, boilers, and chimneys.

In the related art, thermoelectric power generation is performed using a high-temperature gas such as exhaust gas, and it is difficult to maintain a constant surface temperature on the high-temperature side of the thermoelectric module due to irregular diffusion of the gas.

The thermoelectric generator that generates electricity by recovering waste heat is configured to be attached in a plate-like shape to a region having a temperature difference for recovering waste heat. This conventional thermoelectric module for a thermoelectric power generation device has a side that is difficult to install in the exhaust pipe having a curved surface.

The existing thermoelectric module is difficult to attach to the pipe shape, and the attachment surface portion is limited to a specific surface portion, thereby reducing power generation efficiency.

Embodiments of the present invention is to provide a donut-type thermoelectric power generation module and its system that is easy to install in a pipe-shaped heat source and is uniformly disposed in the heat source to recover heat from a heat source such as an exhaust pipe to perform power generation.

Donut-type thermoelectric power module according to an embodiment of the present invention, one or more substrates are provided with a passage so that the heat source of the pipe-like passage; A plurality of thermoelectric lines arranged in a circumferential direction around the passages in the substrate and spaced apart from each other; And a plurality of electrodes connected corresponding to the plurality of thermoelectric lines, wherein the thermoelectric line includes a thermocouple composed of plus and minus elements to absorb heat from a heat source to produce electricity, and the thermoelectric line has a circumferential direction. It is disposed along and includes a plurality of high temperature contacts adjacent to the passage, and a plurality of low temperature contacts spaced apart from the passage than the high temperature contacts.

The plurality of high-temperature contacts and the plurality of low-temperature contacts may be alternately arranged with a distance difference with respect to the center of the passage along the circumferential direction.

Each of the plurality of thermoelectric lines may be arranged in a zigzag pattern along a circumferential direction to alternately connect the plurality of high temperature contacts and the plurality of low temperature contacts.

The substrates are stacked and disposed, and the plurality of electrodes may be connected in parallel or in series along the stacked substrates.

The substrate is accommodated and further includes a thermoelectric body capable of heat transfer, and heat radiation fins may be provided on the thermoelectric body.

The substrate may be arranged in 5 to 10 layers, and may be stacked in a thickness of 10 mm to 15 mm.

The substrate may be disposed inclined toward the center line.

The heat dissipation fins may be arranged at intervals along the circumferential direction.

The substrate may be provided with polyimide.

The plurality of electrodes may include an anode and a cathode, and may further include a power line disposed to be connected to the anode, cathode, and the plurality of hot and cold contacts, respectively.

Donut-type thermoelectric power production apparatus according to an embodiment of the present invention, the donut-type thermoelectric power production module; A transmission pump located in the thermoelectric body; A storage battery located in the thermoelectric body; And a current collector configured to receive and collect the generated electricity.

According to embodiments of the present invention, it is easy to install in a pipe-shaped heat source and is uniformly disposed in the heat source to provide a donut-type thermoelectric power generation device and its system capable of recovering heat from a heat source such as an exhaust pipe to perform power generation. have.

1 is a conceptual diagram of a donut-type thermoelectric power module according to an embodiment of the present invention.
FIG. 2 is a front view of one substrate of the thermoelectric power module of FIG. 1.
FIG. 3 is a layout of stacking a plurality of substrates of FIG. 2.
FIG. 4 is a state diagram of a heat radiation fin installed on the thermoelectric body in the thermoelectric power module of FIG. 3.
5 is a conceptual diagram of a donut-type thermoelectric generator made of a donut-type thermoelectric power module according to an embodiment of the present invention.
6 is a conceptual diagram of a donut-type thermoelectric generator made of a donut-type thermoelectric power module according to another embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains may easily practice. However, since the description of the present invention is only an example for structural or functional description, the scope of the present invention should not be interpreted as being limited by the embodiments described in the text. That is, since the embodiments can be variously changed and have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing technical ideas. In addition, the purpose or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such an effect, and the scope of the present invention should not be understood as being limited thereby.

The meaning of the terms described in the present invention should be understood as follows. Singular expressions are to be understood to include plural expressions unless the context clearly indicates otherwise, and terms such as "comprises" or "have" include the features, numbers, steps, actions, components, parts or components described. It is to be understood that a combination is intended to be present, and should not be understood as pre-excluding the existence or addition possibility of one or more other features or numbers, steps, actions, components, parts or combinations thereof.

All terms used herein have the same meaning as generally understood by a person skilled in the art to which the present invention pertains, unless otherwise defined. The terms defined in the commonly used dictionary should be interpreted to be consistent with meanings in the context of related technologies, and cannot be interpreted as having ideal or excessively formal meanings unless explicitly defined in the present invention.

1 and 2, the donut-type thermoelectric power module according to an embodiment of the present invention, the substrate 110, the substrate 110 is provided with a passage 111 so that the heat source 101 of the pipe-like passage A thermoelectric line 120 disposed in a circumferential direction around the passage 111 and spaced apart from each other, and electrodes 121 connected to the thermoelectric line 120.

The thermocouple line 120 includes a thermocouple 130 composed of plus 131 and minus 132 elements to absorb heat from the heat source 101 to produce electricity.

The thermoelectric line 120 is disposed along the circumferential direction and includes a plurality of high temperature contacts 141 adjacent to the passage 111 and a plurality of low temperature contacts 142 spaced apart from the passage 111 than the high temperature contacts 141. It includes.

The plurality of high-temperature contacts 141 and the plurality of low-temperature contacts 142 may be alternately arranged with a distance difference with respect to the center of the passage 111 along the circumferential direction.

A plurality of thermoelectric lines 120 are arranged along the radial direction of the passage 111.

Each of the plurality of thermoelectric lines 120 may be arranged in a zigzag pattern along a circumferential direction to alternately connect the plurality of high temperature contacts 141 and the plurality of low temperature contacts 142.

In the plurality of thermoelectric lines 120, a high temperature contact 141 is disposed adjacent to a heat source 101 passing through the passage 111, and a low temperature contact 142 is disposed at a distance from the high temperature contact 141, thereby providing a thermocouple. It is possible to produce electricity by using the temperature difference between the high temperature contact 141 and the low temperature contact 142 of 130.

As the thermoelectric lines 120 are disposed around the passage 111 of the substrate 110, the amount of electricity produced by the thermoelectric lines 120 is increased. Since the thermoelectric lines 120 are densely arranged, the amount of electricity produced by the thermocouple 130 may be increased.

As described above, the plurality of thermoelectric lines 120 produce electricity by a difference in heat conduction of the thermocouple 130 by the heat source 101 passing through the passage 111, and an electrode connected to the high temperature contact 141 and the low temperature contact 142 ( 121), and can be transmitted to the place to store electricity through the electrode (121).

The substrate 110 is made of polyimide. Polyimide has high electrical insulation and melting point. As described above, it is easy to manufacture the disk-shaped substrate 110 by polyimide. In addition, assuming the case where the substrate 110 is installed in the heat source 101, it is not easily deformed by heating of the heat source 101.

The thermocouple 130 constituting the thermoelectric module is a kind of thermoelectric element. A thermoelectric element (thermoelement, 熱電 素 子), which uses endothermic or exothermic heat by the Peltier effect, uses a pn junction made of a semiconductor such as a bismuth-terre compound (Bi2Te3). In addition, metal-based Ni-Cr alloys (chromel) and Cu-Ni alloys (constantan) can be used. When used in large volumes, several are used in series, and thermal insulation is performed with an insulating material, and heat can be radiated by attaching a fin on the heating side.

The electrode 121 of the substrate 110 may be copper or gold. The substrate 110 may be a film-like flexible material such as polyimide or a fixed substrate 110 such as the electronic circuit board 110.

An electrical insulating material may be coated on a portion of the substrate 110 except for a region where the thermoelectric element is to be bonded. The material of the electrical insulating material may be polydimethylsiloxane, which is a synthetic resin.

Polydimethylsiloxane (PDMS) has a property of flowing (flowability) in a silicone-based organic polymer.

Polysiloxane with a small molecular weight has a ring structure and is used as oil or grease, and polysiloxane with a large molecular weight is elastic at −80 ° C. and stable at 300 ° C. or higher, and is useful as an elastomer.

In addition to polydimethylsiloxane, the types of synthetic resins used as materials for electrical insulation materials include phenolic resins, polyurethane resins, polyimide resins, acrylic resins, urea / melamine resins, and silicone resins.

Referring to FIG. 2, the plurality of electrodes 121 includes members forming the anode 122 and the cathode 123, and the anode 122, the cathode 123, and the plurality of high temperature contacts 141 and low temperature Power lines arranged to be connected to the contacts 142 may be further included.

The power lines are connected in series by alternately connecting the positive electrode 122 and the negative electrode 123, and when the positive electrodes 122 and the negative electrodes 123 are connected to the same pole and then reconnected, they become parallel.

The power line is installed while being connected to the anode 122, the cathode 123, and the electrical contacts, respectively, to conduct current.

Looking at specific arrangement examples of the components of the power generation module 100, while forming a wire form or a thin film form, arrange electrical contacts (cold / on) in series on a plane, and the number of formed electrical contacts is a substrate. It is determined by the size of (110) and the size of the power generation module (100).

The thermoelectric line 120 may be an E-type thermocouple using a Ni-Cr alloy (chromel) for the anode 122 and a Cu-Ni alloy (constantan) for the cathode 123.

For E-type thermocouples, E-Type thermocouples (Chromel / Constantan) (-200 to 900 ° C) are thermocouples using Ni-Cr alloy (chromel) on the + side and Cu-Ni alloy (constantan) on the-side. Among the thermocouples, the electromotive force (EMF) characteristic is the highest.

E-type thermocouple can be used continuously up to 750 ℃, and for actual use, it is recommended to use K-type similar to E-type as a preventive measure. The E-type thermocouple has the highest resistance among the basic metal thermocouples, so special attention is required when selecting the instrument to be connected to it.

In addition to the E-type thermocouple, there are T-Type thermocouples (Copper / Constantan), N-Type thermocouples (Nicrosil / Nisil), etc., and suitable economical type thermocouples can be used depending on the application situation.

Referring to FIG. 3, a plurality of substrates 110 are stacked and disposed, and a plurality of electrodes 121 may be connected in parallel or in series along the plurality of stacked substrates 110.

In Figure 3, the parallel connection of the substrates 110 is made by connecting the cathode wires of the substrates 110 to one terminal and the anode wires to another terminal. Conversely, the series connection of the substrates 110 is made by connecting the cathode line and the anode line of the substrates 110 alternately.

The substrate 110 may have several sheets arranged in a line along the center line of the passage 111. As such, by arranging a large amount of the substrate 110 around the heat source 101, it is possible to increase the amount of electricity produced.

The substrate 110 is disposed in 5 to 10 layers, and may be stacked in a thickness of 10 mm to 15 mm. The substrate 110 is laminated on the thermoelectric body 150 to make the length as described above. The stacking thickness of the substrate 110 is a thickness that can be appropriately disposed on the heat source 101, and when the thickness is thicker, it is difficult to arrange it in a narrow space.

Since the substrate 110 is disposed on the thermoelectric body 150 with an appropriate thickness, and the thermoelectric body 150 is formed with a short thickness, it is possible to easily deploy several power generation modules along the curved shape of the heat source 101.

Referring to FIG. 4, the substrate 110 is accommodated, and further includes a thermoelectric body 150 capable of heat transfer, and heat radiation fins 151 may be provided on the thermoelectric body 150. The heat dissipation fins 151 dissipate heat transferred from the outside of the substrate 110 to the substrate 110. The heat radiation fins 151 are arranged at intervals along the circumferential direction.

These heat dissipation fins 151 greatly increase the temperature difference between the high temperature contact 141 and the low temperature contact 142 on the substrate 110. Accordingly, the amount of electricity produced in the thermoelectric line 120 is increased.

On the other hand, the donut-type thermoelectric power module according to an embodiment of the present invention is an aspect that is disposed to cross at a right angle to the passage 111. The arrangement pattern of the substrate 110 is fine when the heat source 101 passing through the passage 111 has room in the installation space, but may be restricted when the installation space of the heat source 101 is very narrow.

5, the donut-type thermoelectric power production apparatus according to an embodiment of the present invention, the donut-type thermoelectric power production module 100, the transfer pump 160 located in the thermoelectric body 150, the thermoelectric body A storage battery 161 located at 150 may include a current collector 162 that receives and collects the generated electricity.

The transmission pump 160 transmits electricity, the storage battery 161 stores the produced electricity, and the current collector 162 collects electricity from the storage battery 161 by the transmission pump 160 to collect electricity. .

The donut-type thermoelectric power generation device uses electricity by temporarily storing the electricity produced from the thermoelectric power production module 100 in the storage battery 161 and then storing it in the current collector 162 by the transfer pump 160. Power capacity. The storage battery 161 is capable of storing electricity of a plurality of thermoelectric power production modules 100.

Referring to FIG. 6, another embodiment of the present invention is a more compact configuration of the shape of the substrate 110. The substrate 110 according to another embodiment is disposed inclined toward the center line.

As the substrate 110 is inclined, the substrate 110 does not extend in the radial direction of the passage 111 but is inclined on the center line of the passage 111. The substrate 110 is laid flat, and as the multiple substrates 110 are laid flat, the substrates 110 are arranged compactly.

As the substrates 110 according to another embodiment are disposed compactly, the installation space for the heat source 101 is reduced, so that the power generation module has high power generation capacity and efficiency in a small space.

Although not shown in the drawings, the donut-type thermoelectric power generating apparatus according to an embodiment of the present invention may further include a solar connection member. The solar connection member is connected to a part of the thermoelectric body and can collect the heat and send the heat energy generated by the power generation module.

When using solar heat as in the embodiment of the present invention, the solar connection member may be heated by solar heat, but the heat source is not necessarily limited to solar heat. In other applications, it may be implemented in the form of heating by various heat sources such as geothermal water, hot spring water, artificial light sources, and the like.

It is noted that the present invention is not limited to the above-described embodiments, and the embodiments can be constructed by combining claims not expressly cited in the claims.

100: thermoelectric power production module 101: heat source
110: substrate 111: passage
120: thermoelectric line 121: electrode
122: anode 123: cathode
130: thermocouple 131: plus
132: minus 141: high temperature contact
142: low temperature contact 150: thermoelectric body
151: heat sink fin 155: power line
160: transmission pump 161: storage battery
162: current collector

Claims (11)

One or more substrates having passages through which pipe-shaped heat sources pass;
A plurality of thermoelectric lines arranged in a circumferential direction around the passages in the substrate and spaced apart from each other; And
It includes a plurality of electrodes connected to the plurality of thermoelectric lines,
The thermoelectric line includes a thermocouple composed of plus and minus elements to absorb heat from a heat source to produce electricity.
The thermoelectric line is disposed along a circumferential direction and is arranged at a plurality of high-temperature contacts adjacent to the passage and spaced apart from the passage than the high-temperature contacts,
The plurality of high-temperature contacts and the plurality of low-temperature contacts are alternately arranged with a distance difference with respect to the center of the passage along the circumferential direction,
Each of the plurality of thermoelectric lines,
It is arranged in a zigzag pattern along the circumferential direction to alternately connect the plurality of high temperature contacts and the plurality of low temperature contacts,
The substrate is stacked and arranged in a plurality, the plurality of electrodes are connected in parallel or in series along the stacked plurality of substrates,
The plurality of electrodes includes an anode and a cathode,
The positive electrode, the negative electrode and a plurality of high-temperature contacts and power lines are disposed to be connected to the low-temperature contacts, respectively, further comprising,
The plurality of thermoelectric lines,
A metal-based Ni-Cr alloy (chromel) and a Cu-Ni alloy (constantan) are used for the thermocouple, and the E-type thermocouple in which the Ni-Cr alloy is used for the anode and the Cu-Ni alloy is used for the cathode, and the A donut-type thermoelectric power production module, characterized in that the E-type thermocouple is made of a metal-based wire. delete delete delete According to claim 1,
The substrate is accommodated further includes a thermoelectric body capable of heat transfer,
The thermoelectric body is a donut-type thermoelectric power production module provided with heat radiation fins. The method of claim 5,
The substrate is arranged in 5 to 10 layers, a donut-type thermoelectric power production module is laminated to a height of 10mm to 15mm. The method of claim 5,
The substrate is a donut-type thermoelectric power generation module that is disposed inclined toward the center line. The method of claim 5,
The heat dissipation fin is a donut-type thermoelectric power production module which is arranged at intervals along a circumferential direction. The method of claim 5,
The substrate is a donut type thermoelectric power production module provided with polyimide. delete The donut-type thermoelectric power production module according to claim 1;
A transfer pump located in the thermoelectric body in which the substrate is accommodated and capable of heat transfer;
A storage battery located in the thermoelectric body; And
A donut-type thermoelectric power generation device including a current collector that receives and collects generated electricity.

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