KR101111197B1 - Thermoelectric generation system using waste heat - Google Patents

Abstract

The thermoelectric power generation system using waste heat of the cooling fluid according to the present invention includes a power unit, a heat exchange unit formed in the power unit to radiate heat from the power unit, and a low temperature fluid transfer channel communicating with one side of the heat exchange unit to introduce a low temperature fluid. And a fluid transfer channel portion formed by a high temperature fluid transfer channel communicating with the other side of the heat exchanger to discharge a high temperature fluid absorbing heat from the power unit, and one side communicating with the high temperature fluid transfer channel, and the other side being connected with the low temperature fluid transfer channel. A radiator that communicates with the radiator to dissipate high-temperature cooling fluid from the high-temperature fluid transfer channel and discharges it into the low-temperature fluid transfer channel, and one side is in thermal contact with the low temperature fluid transfer channel, and the other side is in thermal contact with the high temperature fluid transfer channel. It consists of a thermoelectric module to produce.

Thermoelectric power generation system using the waste heat of the cooling fluid according to the present invention has an effect that can use the waste heat discarded by operating the thermoelectric module using the temperature difference between the low temperature fluid transfer channel and the high temperature fluid transfer channel formed between the power unit and the radiator. have.

Waste heat, thermoelectric generation, power unit, thermoelectric module, thermal contact

Description

Thermoelectric power generation system using waste heat of cooling fluid {THERMOELECTRIC GENERATION SYSTEM USING WASTE HEAT}

The present invention relates to a power generation system using waste heat of a cooling fluid. More specifically, the present invention relates to a power generation system using waste heat of a cooling fluid that generates electric energy by supplying waste heat generated during operation of a power unit to a thermoelectric module.

A power unit is a device that obtains the power available by using a power source such as petroleum, coal, electricity, or nuclear power. When it is used, heat is inevitably generated. Therefore, a cooling system must be installed to enable smooth operation of the power unit itself. do.

However, the conventional cooling system has a structure that absorbs heat from the power unit and dissipates it into the atmosphere, which raises a problem in terms of efficiency of energy supplied to the power unit.

Thermoelectric power generation system using the waste heat of the cooling fluid according to the present invention aims to solve the following problems.

First, by installing a thermoelectric module that generates electrical energy by using the temperature difference of the fluid after absorbing the heat of the power unit flowed in to cool the power unit and the fluid radiating heat from the radiator to cool the power unit. To improve energy efficiency.

Second, by effectively dissipating heat from the fluid entering the power unit to cool the power unit, more electrical energy is generated by increasing the temperature difference between the fluid entering the power unit and the fluid absorbing heat from the power unit and discharging it. I want to.

Third, to increase power generation efficiency by expanding the thermal contact area between the fluid flowing into the power unit and the discharged fluid and the thermoelectric module installation area.

The solution to the problem of the present invention is not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

The thermoelectric power generation system using waste heat of the cooling fluid according to the present invention includes a power unit, a heat exchange unit formed in the power unit to radiate heat from the power unit, and a low temperature fluid transfer channel communicating with one side of the heat exchange unit to introduce a low temperature fluid. And a fluid transfer channel portion formed by a high temperature fluid transfer channel communicating with the other side of the heat exchanger to discharge a high temperature fluid absorbing heat from the power unit, and one side communicating with the high temperature fluid transfer channel, and the other side being connected with the low temperature fluid transfer channel. A radiator that communicates with the radiator to dissipate high-temperature cooling fluid from the high-temperature fluid transfer channel and discharges it into the low-temperature fluid transfer channel, and one side is in thermal contact with the low temperature fluid transfer channel, and the other side is in thermal contact with the high temperature fluid transfer channel. It includes a thermoelectric module to produce, the high temperature panel having a heat insulation panel on one side is formed on the outside of the high temperature fluid transfer channel The features.

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In the high temperature panel of the thermoelectric power generation system using the waste heat of the cooling fluid according to the present invention, it is preferable that a high temperature transfer channel insert is formed corresponding to the shape of the high temperature fluid transfer channel so that the high temperature fluid transfer channel can be inserted and coupled.

At least one of the high temperature fluid transfer channel or the low temperature fluid transfer channel of the thermoelectric power generation system using the waste heat of the cooling fluid according to the present invention partitions the inside so as to be in communication with one side into which the fluid is introduced and the other side into which the fluid is discharged to the outside. It is preferable that the diaphragm to be spaced apart.

When the diaphragm is formed in the high temperature fluid transfer channel of the thermoelectric power generation system using the waste heat of the cooling fluid according to the present invention, the thermoelectric module is preferably in thermal contact with the outer wall of the high temperature transfer channel connected to the diaphragm.

When the diaphragm is disposed in the low temperature fluid transfer channel of the thermoelectric power generation system using the waste heat of the cooling fluid according to the present invention, the thermoelectric module is preferably in thermal contact with the outer wall of the low temperature transfer channel connected to the diaphragm.

When the diaphragm is disposed in the low temperature fluid transfer channel of the thermoelectric power generation system using the waste heat of the cooling fluid according to the present invention, the thermoelectric module is preferably in thermal contact with the outer wall of the low temperature transfer channel connected to the diaphragm.

At least one of the low-temperature fluid transfer channel or the high-temperature fluid transfer channel of the thermoelectric power generation system using the waste heat of the cooling fluid according to the present invention is formed higher than the other end of the fluid flow out of the other end of the fluid flow to transfer the fluid by gravity It is preferable.

It is preferable that a low temperature panel having a plurality of cooling fins formed in one direction is formed outside the low temperature fluid transfer channel of the thermoelectric power generation system using the waste heat of the cooling fluid according to the present invention.

In the low temperature panel of the thermoelectric power generation system using the waste heat of the cooling fluid according to the present invention, it is preferable that a low temperature transfer channel insert is formed to correspond to the shape of the low temperature fluid transfer channel so that the low temperature fluid transfer channel can be inserted and coupled.

The thermoelectric module of the thermoelectric power generation system using the waste heat of the cooling fluid according to the present invention is tightly coupled to the low temperature panel on the other side of the low temperature panel, the high temperature panel is preferably tightly coupled to the other side of the low temperature panel on one side of the thermoelectric module.

Preferably, a plurality of transfer channels having a capillary structure are formed in the heat exchange part of the thermoelectric power generation system using the waste heat of the cooling fluid according to the present invention.

At least one battery of the main battery and the sub battery is electrically connected to the thermoelectric module of the thermoelectric power generation system using the waste heat of the cooling fluid according to the present invention, and the main battery and the sub battery are electrically connected to each other through a control unit. .

When the thermoelectric module of the thermoelectric power generation system using waste heat of the cooling fluid according to the present invention is connected only to the main battery, the control unit electrically connects the sub-battery and the main battery when the main battery is completely charged, thereby overcharging the electric energy of the main battery. It is preferable to charge the sub-battery using.

When the thermoelectric module of the thermoelectric power generation system using waste heat of the cooling fluid according to the present invention is connected only to the sub-battery, the control unit electrically connects the sub-battery and the main battery when the sub-battery is completed, thereby overcharging the electric energy of the sub-battery. It is preferable to charge the main battery using.

When the thermoelectric module of the thermoelectric power generation system using waste heat of the cooling fluid according to the present invention is connected to both the main battery and the sub-battery, the control unit electrically connects the one battery and the thermoelectric module when one of the main battery and the sub-battery is charged. It is preferable to cut off and maintain the electrical connection between the other battery and the thermoelectric module that is not completed charging.

The thermoelectric power generation system using waste heat of the cooling fluid according to the present invention includes a power unit, a lubrication unit formed in the power unit to radiate heat from the power unit, and a low temperature lubricating oil transfer channel communicating with one side of the lubrication unit to introduce low temperature lubricating oil. And a lubricating oil transfer channel consisting of a hot lubricating oil transfer channel communicating with the other side of the lubricating part to discharge the high temperature fluid absorbing heat from the power unit, and one side communicating with the high temperature lubricating oil transfer channel, and the other side communicating with the low temperature lubricating oil transfer channel. Heat radiator to dissipate the high temperature cooling fluid flowing from the high temperature lubricating oil transfer channel and to discharge it to the low temperature lubricating oil transfer channel; It includes a thermoelectric module, the high temperature plaque provided with a heat insulation panel on one side outside the high temperature lubricating oil transfer channel Characterized in that the board is formed.

Thermoelectric power generation system using the waste heat of the cooling fluid according to the present invention has an effect that can use the waste heat discarded by operating the thermoelectric module using the temperature difference between the low temperature fluid transfer channel and the high temperature fluid transfer channel formed between the power unit and the radiator. have.

In addition, the power generation system using the waste heat of the cooling fluid according to the present invention can increase the temperature difference between the low-temperature fluid flowing into the power unit and the high-temperature fluid discharged from the power unit by the amount of electrical energy generated from the thermoelectric module There is an effect that can increase.

In addition, the power generation system using the waste heat of the cooling fluid according to the present invention increases the heat exchange area of the low temperature fluid transfer channel and the high temperature fluid transfer channel to increase the power generation efficiency of the thermoelectric module, thereby effectively using the waste heat. .

In addition, the power generation system using the waste heat of the cooling fluid according to the present invention by installing a plurality of diaphragms in the low temperature fluid transfer channel and the high temperature fluid transfer channel to increase the heat exchange area to increase the power generation efficiency of the thermoelectric module to increase the waste heat There is an effect that can be used more efficiently.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

Hereinafter, a thermoelectric power generation system (hereinafter, referred to as a 'power generation system') using waste heat of a cooling fluid according to the present invention will be described in detail with reference to the drawings.

As shown in FIG. 1, which is a conceptual diagram of a preferred embodiment of the present invention, the power generation system includes a power unit 100, a fluid transfer channel unit 200, a radiator 300, and a thermoelectric module 400.

The power unit 100 converts energy sources such as coal, petroleum, electricity, nuclear power into mechanical and electrical energy in nature, and converts electrical energy as well as internal combustion engines used for transportation such as ships, cars, and trains. And a motor for converting the mechanical energy into mechanical energy. It also includes hydro, wind and nuclear generators for generating power.

The power unit 100 is formed with a heat exchange unit 110 to dissipate heat generated during operation of the power unit.

The heat exchanger 110 radiates heat generated when the power unit 100 is driven, and is discharged from the heat exchanger 110 by radiating heat to the fluid flowing in and out through the fluid transfer channel 200 to be described later. Raise the temperature of the fluid.

Thus, a temperature difference is formed between the fluid flowing into the heat exchanger 110 and the fluid flowing out of the heat exchanger 110.

The heat exchange unit 110 has a space (not shown) in communication with the fluid transfer channel 200 inside the power unit 100, the power unit to the fluid flowing through the fluid transfer channel unit 200 Heat dissipation.

The shape of the space part may be formed in various shapes according to the shape of the power device 100, but the space according to the present embodiment forms a plurality of transfer channels (not shown) of the capillary structure therein, and thus the power device 100 It is formed in the form of increasing the cross-sectional area in contact with).

The fluid transfer channel unit 200 is a channel for introducing and discharging fluid to dissipate heat of the power unit 100 as described above, and is connected to one side of the heat exchange unit 110 to induce low temperature fluid. The transfer channel 210 and the other side of the heat exchange unit 110 is made of a high temperature fluid transfer channel 220 for discharging the high-temperature fluid absorbed heat from the power unit 100.

The low temperature fluid transfer channel 210 is formed between the radiator and the heat exchanger, and is a channel through which the low temperature fluid that radiates heat is moved to the heat exchanger 110. The high temperature fluid transfer channel 220 is a heat exchanger. It is formed between the 110 and the radiator 300 is a channel through which the high-temperature fluid absorbed the heat of the power unit in the heat exchange unit 110 is moved to the radiator 300.

One side of the low temperature fluid transfer channel 210 is in thermal contact with the low temperature fluid transfer channel 210, the other side is in thermal contact with the high temperature fluid transfer channel 220 is coupled to the thermoelectric module 400 for producing electrical energy.

The thermoelectric module 400 is formed with the high temperature unit 410 and the low temperature unit 420 to generate electrical energy when a temperature difference occurs between the high temperature unit 410 and the low temperature unit 420. 410 is in thermal contact with the low temperature fluid transfer channel 210 and the high temperature portion 410 is in thermal contact with the high temperature fluid transfer channel 220.

The thermoelectric module 400 generates electric energy when there is a difference in temperature between the high temperature unit 410 and the low temperature unit 420, so that the thermoelectric module 400 is in contact with the fluid transfer channel unit 200 in thermal contact with the power unit. A heat radiator 300 is installed to radiate a fluid that is heated to receive high temperature from the heat, thereby generating a temperature difference between the high temperature fluid transfer channel 220 and the low temperature fluid transfer channel 210.

The radiator 300 passes through the heat exchange unit 110 of the power unit 100 and releases the heat of the fluid supplied with heat from the power unit 100. In general, the radiator 300 bends a tube through which the fluid flows to contact the air. It is formed in increasing form.

The radiator 300 may be formed in various shapes such as a spiral, a zigzag shape.

In addition, a heat dissipation fin (not shown) may be formed on the outer circumferential surface of the tube forming the heat dissipator 300 to increase an area of contact with the surrounding air, and a heat dissipation fan (not shown) to forcibly transfer ambient air. ) May be formed.

These various shapes and structures of the radiator 300 is to make the cooling of the fluid faster, and the radiator may be formed in various shapes as long as it meets this purpose.

As described above, when there is a temperature difference between the low temperature fluid transfer channel 210 and the high temperature fluid transfer channel 220 to which the thermoelectric module 400 is coupled, electrical energy is generated in the thermoelectric module.

The temperature difference is different depending on the type of thermoelectric module, but in the present embodiment, when there is a temperature difference of about 100 ° C., a thermoelectric module for generating the maximum electric energy is used.

Therefore, it is preferable that the temperature between the low temperature fluid transfer channel 210 and the high temperature fluid transfer channel 220 in thermal contact with the thermoelectric module 400 used in this embodiment is about 100 ° C.

In order to generate such a temperature difference, a high temperature panel 221 is formed outside the high temperature fluid transfer channel 220 of the present embodiment.

The high temperature panel 221 wraps the outside of the high temperature fluid transfer channel 220 to prevent heat exchange from occurring, and may be formed in various shapes meeting the purpose, and the thermoelectric module and the fluid transfer channel of the present invention. As shown in FIG. 4, which is another side cross-sectional view of the part, the high temperature panel having the high temperature transfer channel inserting portion 2212 corresponding to the shape of the high temperature fluid transfer channel 220 so that the high temperature fluid transfer channel 220 can be inserted and coupled thereto ( 221 is formed.

One side of the high temperature panel 221 may be combined with a high temperature fluid flowing in the high temperature fluid transfer channel 220 and the heat insulating panel 2211 to reduce the heat exchange with the surroundings of the high temperature panel 221.

At least one of the low temperature fluid transfer channel 210 and the high temperature fluid transfer channel 220 has a diaphragm 212 and 222 spaced apart from each other so as to communicate with one side into which the fluid is introduced and the other side from which the fluid is discharged. do.

As shown in FIG. 3, which is a front sectional view of the thermoelectric module and the fluid transfer channel unit according to an embodiment of the present invention, and in FIG. 4, which is a side sectional view of the thermoelectric module and the fluid transfer channel unit according to another embodiment, the present embodiment is implemented. In the example, although both the low temperature fluid transfer channel 210 and the high temperature fluid transfer channel 220 are disposed with the diaphragms 212 and 222 therein, the fluid temperature, the low temperature transfer channel 210 and the length of the high temperature transfer channel 220 are disposed. The diaphragms 212 and 222 may be disposed only in any one of the low temperature fluid transfer channel 210 and the high temperature fluid transfer channel 220.

The diaphragms 212 and 222 disposed inside the low temperature fluid transfer channel 210 and the high temperature fluid transfer channel 220 partition the insides of the low temperature fluid transfer channel 210 and the high temperature fluid transfer channel 220 to form a low temperature fluid. It forms a cross-sectional area of fluid sufficient to be not resisted by the amount of fluid flowing in the transport channel 210 and the hot fluid transport channel 220.

The diaphragms 212 and 222 are partitioned and arranged so as to communicate with one side where the fluid flows in the inside of the low temperature fluid transfer channel 210 and the high temperature fluid transfer channel 220 and the other side where the fluid flows out. Since the fluid is transported between the 110 and the radiator 300 to increase the contact area, the heat exchange with the outside of the low temperature fluid transfer channel 210 and the high temperature fluid transfer channel 220 may be increased.

When the diaphragms 212 and 222 are disposed in the low temperature fluid transfer channel 210 and the high temperature fluid transfer channel 220, the thermoelectric module 400 facilitates heat exchange with the fluid through the diaphragms 212 and 222. It is more preferable that the low temperature fluid transfer channel 210 and the outer wall of the high temperature fluid transfer channel 220 connected to the diaphragms 212 and 222 are in thermal contact.

In addition, the low temperature fluid transfer channel 210 and the high temperature fluid transfer channel 220 may be formed to have a flow of the fluid horizontal to the ground between the power unit 100 and the radiator 300, but having such a flow flow, The problem is that the fluid cannot be smoothly transferred to one side.

Therefore, the low temperature fluid transfer channel 210 and the high temperature fluid transfer channel 220 are preferably formed to be higher than the other end from which the fluid flows out so that the fluid can be transferred by gravity.

That is, the low temperature fluid transfer channel 210 and the high temperature fluid transfer channel 220 are preferably formed in a tilted state with respect to the ground so that the fluid can flow by gravity.

In this case, the tilting angle of the low temperature fluid transfer channel 210 and the high temperature fluid transfer channel 220 may be variously changed according to the performance of the power unit 100 and the radiator 300.

In addition, the low temperature fluid transfer channel 210 according to an embodiment of the present invention, the thermoelectric module and the fluid transfer channel portion of the front end of Figure 2, side cross-sectional view of Figure 3 and one embodiment of the thermoelectric module and the fluid transfer channel of the present invention 5, a low temperature panel 211 having a plurality of cooling fins 2111 formed in one direction is formed outside the low temperature fluid transfer channel 210.

The cooling fin 2111 may be a cooling fin having a variety of cross-sections, such as circular or elliptical, but in this embodiment, a fin-fin type cooling fin 2111 having a rectangular cross section is used. It became.

The cooling fins 2111 increase the area in contact with the surroundings of the low temperature fluid transfer channel 210, thereby smoothly dissipating heat around the plurality of cooling fins 2111 along the outer circumferential surface of the low temperature fluid transfer channel 210. It may be formed by.

However, when the cooling fins 2111 having such a shape are formed, the low temperature fluid transfer channel 210 itself since the thermal contact with the low temperature fluid transfer channel 210 through the cooling fins 2111 when the thermal contact with the thermoelectric module 400 is performed. The heat dissipation of the thermoelectric module 400 may be smoother, but the temperature of the low temperature portion 410 of the thermoelectric module 400 is higher than the direct contact with the low temperature fluid transfer channel 210.

Thus, a low temperature panel 211 having a plurality of cooling fins 2111 formed in one direction is formed outside the low temperature fluid transfer channel 210, and the thermoelectric module 400 is a low temperature panel 211 at the other side of the low temperature panel 211. It is preferable that it is formed to be in close contact with).

The low temperature panel 211 is a low temperature fluid transfer channel (2) so that the low temperature fluid transfer channel 210 can be inserted as shown in Figure 4 the side cross-sectional view of the thermoelectric module and the fluid transfer channel according to an embodiment of the present invention ( It is preferable that the low temperature transfer channel inserting portion 2112 corresponding to the shape of 210 is formed.

The low temperature transfer channel inserting portion 2112 is for the low temperature fluid transfer channel 210 to be tightly coupled to the low temperature panel 211 and is formed to correspond to the cross-sectional shape of the outer circumferential surface of the low temperature fluid transfer channel 210.

In this embodiment, since the outer circumferential surface of the low temperature fluid transfer channel 210 is formed to have a circular cross section, the low temperature transfer channel inserting portion 2112 is formed to have a circular cross section.

Therefore, when the low temperature fluid transfer channel 210 is formed to have a cross section such as a square or a hexagon, the low temperature fluid transfer channel inserting portion 2112 is formed to have a rectangular or hexagonal cross section according to the shape of the low temperature fluid transfer channel 210.

The low temperature fluid transfer channel 210 shown in FIG. 2, which is an embodiment of the present invention, is tightly coupled at the bottom of the low temperature panel 211 and is a straight line between the heat exchanger 110 and the radiator 300 of the power unit 100. Although it is arranged in a shape, the low temperature fluid transfer channel 210 smoothly exchanges heat with the surroundings, and various shapes such as a straight line or a spiral shape such that a plurality of thermoelectric modules 400 may be installed at the bottom of the low temperature panel 211. It may be formed and disposed.

In addition, the high temperature fluid transfer channel 220 may be formed in a shape corresponding to each other as shown in FIG. 2 or 3 of an embodiment of the low temperature fluid transfer channel 210.

When the high temperature fluid transfer channel 220 is formed in a shape corresponding to the low temperature fluid transfer channel 210, the low temperature portion 410 of the thermoelectric module 400 between the low temperature fluid transfer channel 210 and the high temperature fluid transfer channel 220. ) And the high temperature portion 420 are in direct contact with the low temperature fluid transfer channel 210 and the high temperature fluid transfer channel 220 may cause a greater temperature difference.

Therefore, the high temperature fluid transfer channel 220 is preferably formed in a shape corresponding to the low temperature fluid transfer channel 210.

However, the high temperature fluid transfer channel 220 does not necessarily have to be formed in a shape corresponding to the low temperature fluid transfer channel 210, and the installation position, the number of installations, and the low temperature panel 211 and the high temperature panel 221 of the thermoelectric module 400 are not necessarily formed. It may be formed by deforming in various shapes according to the shape of).

The fluid used in such a power generation system preferably absorbs more heat energy from the power unit, and a fluid having a property of dissipating heat faster than the radiator 300 is preferably used.

Cooling water was used as the fluid used in the present embodiment, but fluids having various operating temperature ranges such as heat transfer oil may be selected and used according to the operating temperature of the power unit 100.

The power generation system according to an embodiment of the present invention may include a low temperature panel 211 and a high temperature panel 221 as described above, and a diagram of a power generation system in which a battery unit according to an embodiment of the present invention is shown. As shown in FIG. 6, the main battery 430 may be connected to the thermoelectric module 400, and the main battery 430 may be electrically connected to the sub battery 440 through the control unit 500.

The main battery 430 and the sub-battery 440 stores the electrical energy generated by the thermoelectric module 400. The electrical energy generated by the thermoelectric module 400 is directly connected to the electrical device to operate the electrical device. You can also

However, since the thermoelectric module 400 continuously generates electric energy when there is a temperature difference between the low temperature fluid transfer channel 210 and the high temperature fluid transfer channel 220, the thermoelectric module 400 is not used continuously. It is preferable that a battery for storing electrical energy generated at 400 is connected.

Therefore, as shown in FIG. 6, in one embodiment of the present invention, the main battery 430 electrically connected to the thermoelectric module, and the controller 500 for controlling the electrical connection between the main battery 430 and the sub-battery 440. A battery for storing electrical energy of the thermoelectric module 400 was installed.

The main battery 430 is directly connected to the thermoelectric module 400 to store electrical energy generated by the thermoelectric module as a primary, and the sub-battery 440 is overcharged when the main battery 430 is fully charged. Receives and charges the electrical energy of the main battery 430.

In this case, when the main battery 430 is fully charged, the controller 500 electrically connects the sub battery 440 and the main battery 430 to generate a sub battery using the overcharged electric energy of the main battery 430. Function to charge.

At this time, the main battery 430 and the sub-battery 440 is provided with a measuring sensor (not shown) to measure the amount of stored electrical energy and transmit it to the control unit 500.

In this case, the electrical device (not shown) is generally preferably electrically connected to the sub-battery 440 and the main battery 430 in order to receive a stable electrical energy from the battery, the electrical connection requires an electrical device It may be modified in various shapes according to the voltage, current, and power.

In addition, the battery connected to the thermoelectric module 400 is not limited to the main battery 430 and the sub-battery 440 as in an exemplary embodiment of the present invention, and various types of thermoelectric modules 400 may be used. You can configure the battery.

In addition, in the present embodiment, only the main battery 430 is electrically connected to the thermoelectric module 400, but the sub-battery 440 may be electrically connected to the thermoelectric module 400 through the control unit 500.

This power generation system is not only applicable to the cooling system using the cooling water or the thermal oil, etc. described above, it is also applicable to the lubrication system of the power unit 100 for reducing the wear of the power unit 100.

Such a system is a power unit 100, a lubrication unit 110a formed in the power unit 100, a lubricating oil transfer channel 200a, as shown in FIG. 7 of the conceptual diagram of a power generation system according to another embodiment of the present invention. It consists of a radiator 300a and a thermoelectric module 400a.

The power unit 100, the radiator 300a and the thermoelectric module 400a will be described below with reference to the lubrication unit 110a and the lubricating oil in order to avoid duplication as described above.

The lubrication unit 110a is a space in which the lubricating oil moving along the inside of the power unit 100 is collected. In the case of an internal combustion engine such as an engine of an automobile, the lubrication unit 110a is generally formed at the bottom of the engine block, but is not necessarily formed at the bottom thereof. Depending on the characteristics of the lubrication system, it can be carried out in various positions.

The lubricating oil collected in the lubrication unit 110a functions to reduce frictional force generated on the friction surface of the power unit 100 or to dissipate heat generated from the friction surface.

Therefore, when the power unit 100 operates, the lubricating oil receives heat from the power unit, and the supplied heat is discharged to the outside of the power unit 100 through the lubricating oil transfer channel 200a.

In this process, the power unit 100 generates a certain level of cooling.

The lubricating oil transfer channel 200a communicating with the lubricating part 110a includes a low temperature lubricating oil transfer channel 210a and a high temperature lubricating oil transfer channel 220a as shown in FIG. 8, which is an embodiment of the present invention. It functions as a passage that circulates between 300a and power unit 100.

The low temperature lubricating oil transfer channel 210a and the high temperature lubricating oil transfer channel 220a have a temperature difference due to the lubricant absorbing heat from the power unit 100 and the lubricating oil radiating heat from the radiator 300a. The thermoelectric module 400a which is in thermal contact with the low temperature lubricating oil transfer channel 210a and the other side is in thermal contact with the high temperature lubricating oil transfer channel 220a generates electrical energy.

Therefore, such a power generation system can produce electric energy using waste heat of the power unit discharged as lubricating oil.

The embodiments and the accompanying drawings described in the present specification are merely illustrative of some of the technical ideas included in the present invention. Therefore, since the embodiments disclosed herein are not intended to limit the technical spirit of the present invention but to explain, it is obvious that the scope of the technical spirit of the present invention is not limited by these embodiments. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1 is a conceptual diagram of a power generation system using waste heat of a cooling fluid according to an embodiment of the present invention.

Figure 2 is a front sectional view of the thermoelectric module and the fluid transfer channel portion according to an embodiment of the present invention.

Figure 3 is a side cross-sectional view of the thermoelectric module and the fluid transfer channel portion according to an embodiment of the present invention.

Figure 4 is a side cross-sectional view of the thermoelectric module and the fluid transfer channel portion according to another embodiment of the present invention.

5 is a plan view according to an embodiment of the thermoelectric module and the fluid transfer channel unit according to an embodiment of the present invention.

6 is a conceptual diagram of a power generation system using waste heat of a cooling fluid in which a battery unit of the present invention is shown.

7 is a conceptual diagram of a power generation system using waste heat of a cooling fluid according to another embodiment of the present invention.

Figure 8 is a front sectional view according to an embodiment of the thermoelectric module and the lubricating oil transfer channel according to an embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

100: power unit 110: heat exchange unit

110a: lubrication part 200: fluid transfer channel part

200a: lube oil transfer channel 210: low temperature fluid transfer channel

210a: low temperature lubricating oil transfer channel 210: low temperature panel

2111: cooling fin 2112: low temperature transfer channel insert

220: high temperature fluid transfer channel 220a: high temperature lubrication oil transfer channel

221: high temperature panel 2211: insulation panel

2212: high temperature transfer channel insert 300: radiator

300a: radiator 400: thermoelectric module

400a: thermoelectric module 410: low temperature part

420: high temperature part 430: main battery

440: sub-battery 500: control unit

Claims (16)

Power unit; A heat exchanger formed in the power unit to radiate heat of the power unit; A fluid transfer channel unit including a low temperature fluid transfer channel communicating with one side of the heat exchanger to introduce a low temperature fluid, and a high temperature fluid transfer channel communicating with the other side of the heat exchanger to discharge hot fluid absorbed heat from a power unit; A radiator, one side of which communicates with the high temperature fluid transfer channel and the other side of which communicates with the low temperature fluid transfer channel to dissipate a high temperature cooling fluid flowing from the high temperature fluid transfer channel and discharge it into the low temperature fluid transfer channel; And One side is in thermal contact with the low temperature fluid transfer channel, the other side is in thermal contact with the high temperature fluid transfer channel includes a thermoelectric module for producing electrical energy, Thermoelectric power generation system using the waste heat of the cooling fluid, characterized in that the high temperature panel with a heat insulation panel is formed on one side outside the high temperature fluid transfer channel. delete The method of claim 1, The high temperature panel is a thermoelectric power generation system using waste heat of a cooling fluid, characterized in that the high temperature transfer channel insertion portion corresponding to the shape of the high temperature fluid transfer channel is formed so that the high temperature fluid transfer channel can be inserted. The method of claim 1, At least one of the high temperature fluid transfer channel or the low temperature fluid transfer channel of the cooling fluid, characterized in that the diaphragm partitioning the interior spaced so as to communicate with the other side in which the fluid flows to the outside is disposed Thermoelectric power generation system using waste heat. 5. The method of claim 4, When the diaphragm is formed in the high temperature fluid transfer channel, The thermoelectric module using the waste heat of the cooling fluid, characterized in that the thermoelectric module is in thermal contact with the outer wall of the high temperature transfer channel connected to the diaphragm. 5. The method of claim 4, When the diaphragm is disposed in the low temperature fluid transfer channel, The thermoelectric module using the waste heat of the cooling fluid, characterized in that the thermoelectric module is in thermal contact with the outer wall of the low temperature transfer channel connected to the diaphragm. The method according to any one of claims 4 to 6, At least one of the low temperature fluid transfer channel or the high temperature fluid transfer channel is formed so that one end of the fluid flow is higher than the other end from which the fluid flows out to transfer the fluid by gravity, thereby thermoelectric power generation using waste heat of the cooling fluid. system. The method of claim 1, Thermoelectric power generation system using the waste heat of the cooling fluid, characterized in that the low temperature panel formed with a plurality of cooling fins in one direction on the outside of the low temperature fluid transfer channel. The method of claim 8, The low temperature panel is a thermoelectric power generation system using waste heat of a cooling fluid, characterized in that the low temperature transfer channel insert is formed corresponding to the shape of the low temperature fluid transfer channel so that the low temperature fluid transfer channel can be inserted. 10. The method according to claim 8 or 9, The thermoelectric module is tightly coupled to the low temperature panel at the other side of the low temperature panel, and the high temperature panel is tightly coupled to the other side of the low temperature panel at one side of the thermoelectric module. system. The method of claim 1, And a plurality of transfer channels having a capillary structure formed in the heat exchange part. The method of claim 1, At least one battery of the main battery and the sub battery is electrically connected to the thermoelectric module, The main battery and the sub-battery is a thermoelectric power generation system using the waste heat of the cooling fluid, characterized in that the interconnection electrically. The method of claim 12, If the thermoelectric module is only connected to the main battery, When the main battery is fully charged, the control unit electrically connects the sub battery and the main battery to charge the sub battery using the overcharged electric energy of the main battery. Thermoelectric power generation system using. The method of claim 12, If the thermoelectric module is only connected to the sub-battery, When the sub battery is fully charged, the control unit electrically connects the sub battery and the main battery to charge the main battery using the overcharged electric energy of the sub battery. Thermoelectric power generation system using. The method of claim 12, If the thermoelectric module is connected to both the main battery and the sub battery, The control unit blocks the electrical connection between the one battery and the thermoelectric module when one battery of the main battery and the sub-battery is completed, and maintains the electrical connection between the other battery and the thermoelectric module that is not completed charging Thermoelectric power system using waste heat. Power unit; A lubrication unit formed in the power unit to radiate heat of the power unit; A lubricating oil transfer channel configured to be connected to one side of the lubricating unit to introduce a low temperature lubricating oil and a high temperature lubricating oil transfer channel to communicate with the other side of the lubricating unit and to discharge a high temperature fluid absorbing heat from a power unit; A radiator, one side of which is in communication with the high temperature lubricating oil transfer channel and the other side of which is in communication with the low temperature lubricating oil transfer channel for dissipating high temperature cooling fluid flowing from the high temperature lubricating oil transfer channel to discharge into the low temperature lubricating oil transfer channel; And One side is in thermal contact with the low temperature lubricating oil transfer channel, and the other side is in thermal contact with the high temperature lubricating oil transfer channel, and includes a thermoelectric module for producing electrical energy. Thermoelectric power generation system using the waste heat of the cooling fluid, characterized in that the high temperature panel having a heat insulation panel is formed on one side of the outside of the high temperature lubricating oil transfer channel.

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