KR20200046195A - Heat exchanger for thermoelectric generation system using automobile exhaust heat - Google Patents

Abstract

The present invention is to prevent the bending phenomenon occurring in a heat exchanger for a thermoelectric generation system using automobile exhaust heat. To this end, the heat exchanger for a thermoelectric generation system using automobile exhaust heat includes: an inlet part through which the exhaust gas is introduced; a high temperature part in which the exhaust gas introduced through the inlet part flows and which is formed by joining an upper member and a lower member; a low temperature part coupled with the high temperature part; and an outlet part through which the exhaust gas flowing in the high temperature part is discharged. The upper and lower members of the high temperature part include a plurality of fins each protruding and extended in a longitudinal direction.

Description

Heat exchanger for auto-arrangement thermoelectric generators {HEAT EXCHANGER FOR THERMOELECTRIC GENERATION SYSTEM USING AUTOMOBILE EXHAUST HEAT}

The present invention relates to a heat exchanger used in a thermoelectric generator that converts and recovers high-temperature heat-dissipated energy that is wasted as exhaust gas of a vehicle into electrical energy using a thermoelectric element.

Looking at the energy flow in a conventional vehicle, the chemical energy of gasoline is converted into mechanical energy by combustion in an engine, and the thermal efficiency at this time is only about 30% even when high.

The rest of the energy is released to the outside by 30%, 10%, 30%, respectively, through the radiator, engine body, and exhaust gas in the form of heat.

Among the waste heat of the engine, the higher the temperature of the heat source is, the higher the utility as energy is, so a technique for generating thermoelectric conversion power using the same has been developed.

Thermoelectric conversion uses the Seebeck effect that a potential difference occurs between a heat source and a cooling unit when a temperature difference is applied across a Seebeck element, which is a metal or a semiconductor. A great feature of this system is that it directly transfers heat without a mechanical driving unit. Is that it can be converted to

The thermoelectric power generation system using an automobile array can be divided into a plurality of thermoelectric modules, a thermoelectric power generation system part, and a control system part. Among them, the technology of the thermoelectric power generation system part is intended to recover as much waste heat as possible from the arrangement that is discarded by the vehicle exhaust. It is an important skill.

The thermoelectric power generation system includes a heat exchanger for recovering heat from the exhaust gas and transferring it to the thermoelectric module in addition to the thermoelectric module for performing thermoelectric power generation.

The heat exchanger must extract the automobile array energy in a very narrow area with a high heat transfer rate, and at the same time, it must be designed to avoid a decrease in engine efficiency due to an increase in back pressure. In addition, thermal deformation, such as bending, is generated as it is continuously exposed to a high temperature environment.

In order to prevent such deformation and increase heat exchange performance, a structure in which fins are formed inside the heat exchanger to increase rigidity and heat conduction is widely adopted. However, in this case, a problem arises in that the fin structure serves as a barrier to the flow of exhaust gas. That is, since the gas flows only through the flow path partitioned by the fins, the amount of exhaust gas flowing through the high-temperature portion of the heat exchanger differs between the central section and the left and right edge sections, which soon leads to a decrease in thermoelectric efficiency.

In order to prevent such a problem, the upper and lower plates constituting the high-temperature portion of the heat exchanger may be spaced apart from each other so that pins do not contact each other. However, in this case, since the upper plate and the lower plate are separated, there is a problem in that resistance to thermal deformation or the like is lowered and warpage occurs. When this bending deformation occurs, the thermoelectric power generation efficiency is lowered because the bonding with the thermoelectric module is incomplete.

In addition, continuous vibration is generated while the vehicle is running, whereby the heat exchanger is likely to loosen, deform, or break fatigue.

The present invention is to solve the above-mentioned problems of the prior art, and is to prevent the warpage phenomenon occurring in the heat exchanger for a car array thermoelectric generator.

In addition, the present invention is to increase the efficiency of the exhaust gas flow of the heat exchanger for a car array thermoelectric generator.

In addition, the present invention is to increase the durability by improving the anti-vibration ability of the heat exchanger for a car array thermoelectric generator.

In order to solve the above-mentioned problems, the present invention provides a heat exchanger for an automotive array thermoelectric generator having the following configuration.

An inlet through which exhaust gas flows;

Exhaust gas flowing from the inlet flows into the inside, the high-temperature portion formed by the bonding of the upper member and the lower member;

A low temperature portion combined with the high temperature portion; And

And an outlet through which the exhaust gas flowing through the high temperature portion is discharged.

The high-temperature portion, the heat exchanger for the automotive array thermoelectric power generation device, characterized in that the upper member and the lower member each includes a plurality of fins protruding in the longitudinal direction and extending.

The inlet portion is a portion into which the exhaust gas flows and is connected to the exhaust pipe of the vehicle.

The outlet portion is a portion where the exhaust gas heat-exchanged for thermoelectric power generation is discharged, which is also connected to the exhaust pipe.

The high-temperature portion is formed by contacting pins formed on the upper member and the lower member, respectively. As a result, a plurality of high-temperature portion flow paths partitioned by the pins contacting each other are formed in the high-temperature portion.

According to such a configuration, since the upper member and the lower member are separately formed and a plurality of pins formed on each of them are in contact with each other, resistance to thermal deformation or vibration is increased. That is, it is possible to prevent warpage, which is a conventional problem.

On the other hand, one or more protrusions are formed in the longitudinal direction of the pin. At this time, the protrusions of the upper member and the lower member are formed at positions corresponding to each other, so that the upper members and the lower member come into contact with each other.

Accordingly, in the absence of a protrusion, each high-temperature portion flow path that has been divided and isolated by a pin communicates with each other. As a result, the exhaust gas may not only travel to one high-temperature passage, but can also propagate to neighboring high-temperature passages. As a result, the exhaust gas flows evenly in all regions of the high temperature portion, thereby increasing heat exchange efficiency.

In addition, the present invention provides a heat exchanger for a car array thermoelectric generator having the following configuration.

An inlet through which exhaust gas flows;

A high-temperature section through which the exhaust gas flowing from the inflow section flows;

A low temperature portion combined with the high temperature portion; And

And an outlet through which the exhaust gas flowing through the high temperature portion is discharged.

A heat exchanger for a car array thermoelectric generator, characterized in that a supporter is coupled to the low temperature portion.

The low temperature portion is preferably composed of a body and a cover, and a flow path through which cooling water flows is formed in the body. Through this, it is possible to lower the operating temperature of the low temperature portion.

The supporter is coupled to the cover of the cold section. The supporter may include a bar-shaped supporter body and a cross-shaped protrusion protruding from an intermediate portion of the supporter body, and can support the low-temperature portion more stably by installing the protrusion. In addition, a step portion having a different height is formed on the lower surface of the supporter, thereby making it possible to further increase resistance to deformation by making contact with the cover at several points.

The high-temperature section and the low-temperature section are combined with the thermoelectric module interposed therebetween. The thermoelectric modules are placed on both surfaces of the high temperature portion, and the low temperature portions are joined in contact with the thermoelectric module. The coupling may be made by bolts passing through the low-temperature portion, the high-temperature portion and the opposite low-temperature portion, where a nut is positioned on one low-temperature portion. At this time, by interposing the washer between the nut and the low temperature portion, the washer can act as a spring to absorb vibration. Washers can increase the elasticity of the dish head washers by combining them so that the directions are reversed, and as a result, the vibration absorbing capacity can be further increased.

On the other hand, it is preferable that a diffuser for improving the flow of exhaust gas is installed in the inlet. The diffuser is made in the form of a funnel. The narrow side of the funnel type is located on the exhaust pipe side of the vehicle and the wide side is coupled to the high temperature portion. By employing a diffuser, the exhaust gas flowing from the vehicle exhaust pipe is diffused and flows wide when it enters the high temperature section. Therefore, the flow in the high-temperature unit 300 is improved to improve heat exchange efficiency, and thus thermoelectric efficiency.

Also, it is more preferable that a flow guide is installed so that the exhaust gas can be more smoothly diffused to the edge of the high temperature portion. It is preferred that the flow guide is generally conical. Since the exhaust gas enters into the high-temperature section while forcibly spreading around the high-temperature section upon impact with the flow guide, the exhaust gas flow in the high-temperature section is uniform.

According to the present invention described above, it is possible to prevent the bending phenomenon occurring in the heat exchanger for a car array thermoelectric generator.

In addition, according to the present invention, it is possible to increase the efficiency of the exhaust gas flow of the heat exchanger for a vehicle heat generator.

In addition, according to the present invention is to increase the durability by improving the anti-vibration ability of the heat exchanger for a car array thermoelectric generator.

1 is a perspective view of a heat exchanger for thermoelectric power generation according to an embodiment of the present invention.
2 is a front view of a heat exchanger for thermoelectric power generation according to an embodiment of the present invention.
Figure 3 is a perspective view showing the main parts of the upper member and the lower member constituting the high-temperature portion of the heat exchanger according to an embodiment of the present invention.
4 is a side view of the high-temperature portion of FIG. 3, (a) is a state in which the upper member and the lower member are separated, and (b) is a view showing a state in which the upper member and the lower member are brought into contact with each other.
5 is a perspective view showing fluid flow in a high temperature portion of a heat exchanger according to an embodiment of the present invention.
6 is a plan view of a heat exchanger for thermoelectric power generation according to an embodiment of the present invention.
7 is a perspective view of a body of a low temperature portion of a heat exchanger for thermoelectric power generation according to an embodiment of the present invention.
8 is a perspective view of a supporter coupled to a low temperature unit according to an embodiment of the present invention.
9 is a plan view of a supporter coupled to a low temperature unit according to an embodiment of the present invention.
10 is a front view of a supporter coupled to a low temperature unit according to an embodiment of the present invention.
11 is a front sectional view of a washer coupled to a low temperature portion according to an embodiment of the present invention.
12 is a view showing a use state of the washer coupled to the low temperature portion according to an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, the same components may have the same reference numerals as possible even though they are displayed on different drawings. In addition, in describing the present invention, when it is determined that detailed descriptions of related well-known configurations or functions may obscure the subject matter of the present invention, detailed descriptions thereof may be omitted.

In addition, in describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the component from other components, and the essence, order, order, or number of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, the component may be directly connected to or connected to the other component, but different components between each component It will be understood that the "intervenes" may be, or each component may be "connected", "coupled" or "connected" through other components.

1 is a perspective view of a heat exchanger for thermoelectric power generation according to an embodiment of the present invention.

The heat exchanger for thermoelectric power generation is coupled to the exhaust pipe of the vehicle, and is mainly located between the catalytic converter and the silencer.

1 and 2, the heat exchanger for thermoelectric power generation 10 is largely made up of an inlet 100, an outlet 200, a high temperature 300, and a low temperature 400.

The inlet portion 100 is a portion into which the exhaust gas is introduced and is connected to the exhaust system of the vehicle.

The outlet portion 200 is a portion where the exhaust gas heat-exchanged for thermoelectric power generation is discharged, and is also connected to the exhaust system.

The high temperature unit 300 serves as a passage for exhaust gas. The high temperature unit 300 is bonded to one surface of the thermoelectric module 20 so that the heat of the exhaust gas can be transferred to the thermoelectric module 20 with maximum efficiency. The exhaust gas passes heat to the thermoelectric module 20 while passing through the high-temperature unit 300.

The low temperature unit 400 contacts the other surface of the thermoelectric module 20. The low temperature unit 400 is composed of a low temperature unit body 410 and a cover 420, and a cooling water flow path 415 for flowing water is formed in the low temperature unit body 410.

The thermoelectric module 20 is preferably a module in which a plurality of elements most suitable for thermoelectric power generation of vehicle waste heat is connected, and a medium temperature thermoelectric element having a power generation operation temperature of 400 to 600 ° C is used. Mainly, a module employing a skirted-dite-type thermoelectric element is used.

Hereinafter, the configuration of the inlet portion 100, the outlet portion 200, the high temperature portion 300, and the low temperature portion 400 will be described in more detail.

The end portion of the inlet 100 through which the exhaust gas enters includes a flange 110 for connection with an exhaust pipe, and the flange 110 is connected to the exhaust gas flow pipe 120. The flange 110 and the exhaust gas flow pipe 120 may be integrally formed.

The other end of the inlet 100 includes a diffuser 130. The diffuser 130 is made in the form of a funnel. The narrow side of the funnel type is fitted to the exhaust gas flow pipe 120 and the wide side is screwed to the high temperature section 300. By adopting the diffuser 130 of this type, the exhaust gas flowing from the vehicle exhaust pipe is diffused and flows wide when it flows into the high temperature unit 300. Therefore, the flow in the high-temperature unit 300 is improved to improve heat exchange efficiency, and thus thermoelectric efficiency.

It is preferable that the gasket 132 is interposed to prevent leakage of exhaust gas when the diffuser 130 and the high temperature unit 300 are combined. In addition, a flow guide 134 is installed to allow the exhaust gas to spread more smoothly to the entire high temperature unit 300. The flow guide 134 may have a conical shape or a triangular shape when viewed from the side, and a rectangular shape when viewed from the front. The flow guide 134 is screwed to the diffuser 130. The exhaust gas is forced to spread from the center of the high temperature unit 300 to the periphery as it hits the flow guide 134 and enters the high temperature unit 300.

The outlet portion 200 is configured to include an outlet portion body 230 as a portion where exhaust gas is discharged. The end of the outlet body 230 is connected to the exhaust gas flow pipe 220, and the exhaust gas flow pipe 220 is connected to the flange 210. The flange 210 is connected to the exhaust pipe. The gasket 232 is inserted for a firm connection between the outlet body 230 and the high temperature portion 300. The flange 210 and the exhaust gas flow pipe 220 may be integrally formed.

The outlet body 230 is made in the form of a funnel. The narrow side of the funnel type is fitted with the exhaust gas flow pipe 220 and the wide side is coupled to the high temperature section 300. According to this form, the exhaust gas from the high-temperature portion 300 is discharged to the exhaust pipe while being focused to the center of the outlet portion 200.

Figure 3 is a perspective view showing the main parts of the upper member and the lower member constituting the high-temperature portion of the heat exchanger according to an embodiment of the present invention, Figure 4 is a side view of the high-temperature portion of Figure 3, (a) is the upper and lower parts Ash is separated, (b) is a view showing a state in which the upper member and the lower member are in contact with each other.

The high temperature part 300 is made by combining the upper material 310 and the lower member 320. The upper material 310 and the lower member 320 each have an outer surface formed of a flat plate shape in contact with the thermoelectric module 20, and the inner surface protrudes in the longitudinal direction from the inlet end to the outlet 200 end. Pins 312 and 322. The upper member 310 and the lower member 320 are in close contact with each other so that the pins 312 and 322 come into contact with each other. As a result, a high temperature section 300 is formed in which a plurality of high temperature section flow paths 330 partitioned by two adjacent pins 312 and 322 are formed.

According to this configuration, since the plurality of pins 312 and 322 formed on each of the upper member 310 and the lower member 320 are in contact with each other, resistance to thermal deformation or vibration is increased. That is, it is possible to prevent warpage, which is a conventional problem.

On the other hand, in this configuration, there is a problem in that the exhaust gas flowing from the high temperature unit 300 flows only through each of the divided high temperature unit flow paths 330. Therefore, the exhaust gas flow is not uniform, the heat exchange efficiency, and thus the thermoelectric efficiency can be lowered.

To solve this problem, as shown in FIGS. 3 and 4, one or more protrusions 313 and 323 are formed in the longitudinal direction of each pin 312 and 322. At this time, the protrusions 313 and 323 of the upper member 310 and the lower member 320 are formed at positions corresponding to each other, so that they come into contact when the upper member 310 and the lower member 320 are joined. Accordingly, as shown in FIG. 5, in the absence of the protrusions 313 and 323, each of the high-temperature portion flow paths 330 which are to be separated and separated by the pins 312 and 322 communicate with each other. As a result, the exhaust gas may not only travel to one high-temperature portion flow path 330, but may also propagate to the adjacent high-temperature portion flow path 330. As a result, the heat exchange efficiency is increased because the exhaust gas is evenly mixed and flows in the entire region of the high temperature unit 300.

The specific gravity occupied by the protrusions 313 and 323 in the length of the entire fins 312 and 322 is not particularly limited. The larger the area in contact with the upper member 310 and the lower member 320 when it is large, the higher the resistance to deformation, but the lower the effect of mixing the exhaust gas flow. Conversely, when the specific gravity occupied by the protrusions 313 and 323 is low, the mixing effect of the exhaust gas increases, but when the upper material 310 and the lower member 320 are joined, the upper material 310 and the lower member 320 contact each other. Since the effect of reducing the area is generated, the bonding stiffness of the entire high-temperature portion 300 may be reduced. In view of this, it is preferable to form about 3 to 5 protrusions 313 and 323 for each pin.

On the other hand, as also shown in Figure 5, both the upper member 310 and the lower member 320, the protrusions 313 and 323 of each of the pins 312 and 322, the adjacent pins 312 and 322 of the protrusions 313, It is more advantageous to improve the flow that the formation position is different from 323). By doing this, the exhaust gas can be easily propagated as indicated by the arrow to the neighboring high-temperature flow path 330 without being disturbed by the progress toward the outlet 200.

Hereinafter, the structure of the low temperature unit 400 will be described in detail with reference to FIGS. 1, 2, and 6.

The low temperature part 400 is composed of a low temperature part body 410 and a cover 420.

The low-temperature body 410 has a cooling water flow path 415 formed therein (see FIG. 7). As the cooling water flows through the cooling water channel 415, the temperature of the low temperature unit 400 is lowered, and as a result, thermoelectric efficiency is increased.

The low temperature unit 400 is coupled to the high temperature unit 300 with the thermoelectric module 20 interposed therebetween. That is, the lower surface of the low-temperature body 410 is in contact with the thermoelectric module 20.

The coolant enters the low-temperature body 410 through the coolant inlet 422 and circulates through the coolant channel 415 to form heat exchange and is discharged to the coolant outlet 424.

The cover 420 serves as a lid for sealing the body 410 of the low temperature portion, so that the cooling water inside the body 410 of the low temperature portion does not leak. In addition, a cooling water inlet 422 and a cooling water outlet 424 are formed in the cover 420. The cooling water enters into the low-temperature body 410 through the cooling water inlet 422 and flows through the cooling water flow path 415, and then is discharged through the cooling water outlet 424.

The low-temperature portion 400 is basically two, one on each side of the high-temperature portion 300, two are combined. In addition, two or more low-temperature units 400 may be coupled to one side of the high-temperature unit 300 depending on the length of the high-temperature unit 300 and the number of thermoelectric modules 20. In this embodiment, one low-temperature unit 400 is combined with one thermoelectric module 20, and as the thermoelectric modules are four, a total of four of each of the two high-temperature units 300 is combined.

On the other hand, although the low temperature unit 400 is also called a low temperature, it is still subjected to a high temperature environment, and also receives shock such as vibration of the vehicle. Therefore, it is vulnerable to bending deformation.

To prevent such deformation, cover to reliably support the coupling between the cover 420 and the low-temperature body 410, the entire low-temperature unit 400 and the thermoelectric module 20, and the low-temperature unit 400 and the high-temperature unit 300. The supporter 500 is installed at 420. The supporter 500 is coupled to the top surface of the cover 420.

8, 9, and 10 are perspective, plan, and front views, respectively, of a supporter coupled to a low temperature unit according to one embodiment of the present invention.

In the drawing, the supporter 500 includes a bar-shaped supporter body 510 and a cross-shaped protrusion 520 in the middle portion of the supporter body 510. The cross-shaped protrusion 520 maintains the coupling with the cover 420 more stably and strengthens the prevention of bending deformation. Screw coupling portions 530 are formed at opposite ends of the supporters 500 in opposite directions.

On the other hand, the supporter 500 has a structure in which the height decreases toward the end, and the cross-shaped protrusion 520 also has a structure in which the height decreases toward the end.

In addition, the bottom surface of the supporter 500, that is, the surface in contact with the cover 420 of the low-temperature portion 400 is formed higher than the other portions in the cross-shaped protrusion 520, the screw coupling portion 530, the central portion 540, and the like. Therefore, when bonding with the cover 420, bonding is performed at a specific point, so that the stability of the bonding is increased and the ability to prevent deformation is also increased.

Meanwhile, as shown in FIG. 2, the bolt 550 passes through the cover 420 and the low-temperature body 410 through the screw coupling portion 530 of the supporter 500, and then the low-temperature body of the low-temperature body 400 on the other side ( 410) and the cover 420 is extended to pass through the screw coupling portion 530 of the opposite supporter 500, thereby being coupled not only between the low temperature portion body 410 and the cover 420, but also the high temperature portion 300 and the high temperature portion (300) Both the low-temperature portion 400, and both the low-temperature portion supporters 500 are combined simply and firmly.

At this time, the washer 570 is inserted into and coupled to the nut 560 of the opposite low-temperature portion 400 coupled with each bolt 550 inserted in one low-temperature portion 400. The washer 570 uses a dish spring washer having a cross-sectional shape as shown in FIG. 11. The washer 570 is composed of a washer body 572 and a bolt insertion hole 574. Two or more washers 570 are inserted, preferably four. At this time, the plate spring washer 570 is inserted with different directions, as shown in FIG. 12.

According to this configuration, the washer 570 serves as a plate spring to absorb vibrations of the vehicle transmitted to the heat exchanger 10. As a result, the durability of the heat exchanger 10 is greatly improved.

In this embodiment, the high temperature part 300, the low temperature part 400, the inflow part 100, the outflow part 200, the supporter 500, etc. are all made of metal, for example, stainless steel or aluminum alloy may be used. However, it is not limited thereto.

In the above, even if all the components constituting the embodiments of the present invention are described as being combined or operated as one, the present invention is not necessarily limited to these embodiments. That is, if it is within the scope of the present invention, all of the components may be selectively combined and operated.

In addition, the terms "include", "consist" or "have" as described above mean that the corresponding component can be inherent, unless specifically stated otherwise, to exclude other components. It should not be interpreted as being able to further include other components. All terms, including technical or scientific terms, have the same meaning as generally understood by a person skilled in the art to which the present invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted as being consistent with the meaning of the context of the related art, and are not to be interpreted as ideal or excessively formal meanings unless explicitly defined in the present invention.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the claims below, and all technical spirits within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

10: heat exchanger 20: thermoelectric module
100: inlet 110, 210: flange
120, 220: exhaust gas flow pipe 130: diffuser
132: gasket 134: flow guide
200: outlet 230: outlet body
232: gasket 300: high temperature
310: upper material 320: lower member
312, 322: pins 313, 323: protrusions
330: high temperature section flow path 400: low temperature section
410: low temperature body 415: cooling water flow path
420: cover 422: coolant inlet
424: coolant outlet 500: supporter
510: supporter body 520: cross-shaped projection
530: screw connection portion 540: supporter center
550: bolt 560: nut
570: washer 572: washer body
574: bolt hole

Claims (15)

An inlet through which exhaust gas flows;
Exhaust gas flowing from the inlet flows into the inside, the high-temperature portion formed by the bonding of the upper member and the lower member;
A low temperature portion combined with the high temperature portion; And
And an outlet through which the exhaust gas flowing through the high temperature portion is discharged.
The high-temperature portion, the heat exchanger for the automotive array thermoelectric power generation device, characterized in that the upper member and the lower member each includes a plurality of fins protruding in the longitudinal direction.
The method according to claim 1,
A fin is formed on each of the upper member and the lower member, and the upper member and the lower member are joined so that the pins come into contact with each other.
The method according to claim 2,
The pin of the upper member and the pin of the lower member are formed with one or more protrusions in the longitudinal direction at positions corresponding to each other, and the protrusion of the upper member pin and the protrusion of the lower member pin abut the upper material and the lower member. Heat exchanger for a car array thermoelectric generator, characterized in that.
The method according to claim 1,
Heat exchanger for a car array thermoelectric generator, characterized in that the low-temperature portion is composed of a body and a cover.
The method according to claim 4,
A heat exchanger for a vehicle thermoelectric generator, characterized in that a cooling water channel is formed in the body.
An inlet through which exhaust gas flows;
A high-temperature section through which the exhaust gas flowing from the inflow section flows;
A low temperature portion combined with the high temperature portion; And
And an outlet through which the exhaust gas flowing through the high temperature portion is discharged.
A heat exchanger for a car array thermoelectric generator, characterized in that a supporter is coupled to the low temperature portion.
The method according to claim 6,
The supporter is a bar-shaped supporter body;
A cross-shaped protrusion protruding from the middle portion of the supporter body; And
Heat exchanger for a car array thermoelectric generator, characterized in that it is formed by including a screw hole at both ends of the body.
The method according to claim 7,
A heat exchanger for a car array thermoelectric generator, characterized in that at least one step portion having a different height is formed on a lower surface of the supporter, and the cover and the step portions are brought into contact and combined.
The method according to claim 1 or claim 6,
A heat exchanger for a vehicle thermoelectric generator, characterized in that the inlet is provided with a diffuser for improving the flow of exhaust gas.
The method according to claim 9,
The diffuser is made of a funnel shape, a wider heat exchanger for a car array thermoelectric generator, characterized in that coupled to the high temperature.
The method according to claim 10,
A heat exchanger for a car thermoelectric generator, characterized in that a flow guide is provided for diffusing the flow of exhaust gas between the diffuser and the high temperature portion.
The method according to claim 11,
Heat exchanger for a car array thermoelectric generator, characterized in that the flow guide is conical.
The method according to claim 1 or claim 6,
Heat exchanger for a car array thermoelectric generator, characterized in that at least one of the low-temperature portion is installed on both sides of the high-temperature portion.
The method according to claim 13,
A vehicle array thermoelectric power generation device characterized in that the high temperature portion and the low temperature portion are coupled by bolts and nuts passing through the low temperature portions of both the high temperature portion and the high temperature portion, and vibration can be absorbed by interposing a washer between the low temperature portion and the nut. Heat exchanger.
The method according to claim 14,
The washer is a plurality of dish head washers, each plate head washer heat exchanger for automotive array thermoelectric generator, characterized in that the direction is coupled to the opposite direction.

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