KR101795172B1 - Thermoelectric module structure - Google Patents

Thermoelectric module structure Download PDF

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Publication number
KR101795172B1
KR101795172B1 KR1020150169980A KR20150169980A KR101795172B1 KR 101795172 B1 KR101795172 B1 KR 101795172B1 KR 1020150169980 A KR1020150169980 A KR 1020150169980A KR 20150169980 A KR20150169980 A KR 20150169980A KR 101795172 B1 KR101795172 B1 KR 101795172B1
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KR
South Korea
Prior art keywords
groove
type pellet
electrode
cooling jacket
electrode part
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KR1020150169980A
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Korean (ko)
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KR20170064336A (en
Inventor
곽진우
송경화
김병욱
여인웅
이한샘
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현대자동차주식회사
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    • H01L35/32—
    • H01L35/02—
    • H01L35/14—
    • H01L35/24—
    • H01L35/30—
    • H01L35/34—

Abstract

The present invention relates to a thermoelectric module structure, and more particularly, to a thermoelectric module having a plurality of first electrode portions having a first groove formed inside thereof; A second electrode part provided at a predetermined distance from the first electrode part and having a second groove formed therein; An N-type pellet and a P-type pellet which are seated between a first groove of the first electrode part and a second groove of the second electrode part; And a cooling jacket provided below the second electrode part and having a flow path space formed therein to reduce a temperature of the second electrode part, wherein the first electrode part, the second electrode part, the N-type electrode part, The pellet, the P-type pellet, and the cooling jacket are integrated with each other through the polymer resin composition to prevent the pellet from dropping off from the thermoelectric module of the high temperature and high vibration vehicle, thereby improving the merchantability and ensuring durability, So that the thermoelectric module can be integrated with the thermoelectric module through the conductive insulating resin so as to enhance the performance of the thermoelectric module.

Description

[0001] Thermoelectric module structure [0002]

The present invention relates to a thermoelectric module structure, and more particularly, to a thermoelectric module structure for preventing detachment of a pellet in a thermoelectric module of a high-temperature and high-vibration vehicle and improving the performance of the thermoelectric module.

Generally, a thermoelectric module forms a PN junction pair by bonding a P-type thermoelectric material and an N-type thermoelectric material between metal electrodes. If a temperature difference is given between the PN junction pairs, a seeback effect So that it can function as a power generation device.

Thermoelectric module and its constituent members are different depending on the temperature range of the heat source to be applied. Generally, in the case of a module utilizing a heat source of a middle and low temperature range of about 200-300C, a thermoelectric material of BiTe type and a thermoelectric material of 450C A solder filler having a melting point below or a thermal glue based on a polymer resin is used to manufacture a module by bonding an electrode member and a thermoelectric material.

In this case, when a high-temperature heat source of 300 C or more is utilized, a thermoelectric material such as Skutterudite (SKD), Half Heusler (HH), or Silicide type which exhibits a high ZT at a high temperature region is used. For joining, a brazing filler And processes.

On the other hand, different bonding filler materials are used for the hot side and the cold side, respectively. This is because when the temperature difference is given to the thermoelectric module, the temperature of the cold side portion differs by more than 500 ° C. So that bonding is performed by using soldering without using a high-temperature brazing filler.

However, in a conventional thermoelectric module, when a thermoelectric system is mounted on an engine or a muffler for application to a vehicle, the phenomenon that the pellet is dropped due to a high temperature difference, a difference in thermal expansion coefficient between the pellet and the electrode material, There is a problem in that the entire module fails to function due to the disconnection of one pellet due to the characteristics of the module connected in series.

Patent 1: Korean Patent No. 10-1063920

The present invention relates to a thermoelectric module structure for solving the above problems, and in particular, to prevent detachment of pellets in a thermoelectric module of a high-temperature and high-vibration vehicle and to improve the performance of the thermoelectric module.

The present invention provides a plasma display panel comprising: a plurality of first electrode portions having a first groove formed therein; A second electrode part provided at a predetermined distance from the first electrode part and having a second groove formed therein; An N-type pellet and a P-type pellet which are seated between a first groove of the first electrode part and a second groove of the second electrode part; And a cooling jacket provided below the second electrode part and having a flow path space formed therein to reduce a temperature of the second electrode part, wherein the first electrode part, the second electrode part, the N-type electrode part, The pellet, the P-type pellet, and the cooling jacket through the polymer resin composition.

Wherein the first groove of the first electrode portion comprises a 1-1 groove and a 1-2 groove and the second groove of the second electrode portion comprises a 2-1 groove and a 2-2 groove, -1 groove and the N-type pellet are seated on the 2-2 groove, and the P-type pellet is seated on the 1-2 groove and the 2-1 groove.

The first electrode part forms a high-temperature part, and a brazing filler is inserted into the first groove, so that the N-type pellet and the P-type pellet are bonded to each other through a vacuum or a laser.

The second electrode part forms a low-temperature part, and a soldering filler is inserted into the second groove to bond the N-type pellet and the P-type pellet through heating.

And a mold capable of filling the polymeric resin composition is provided under the cooling jacket.

And a spacer for forming an insulation gap may be provided between the second electrode portion and the cooling jacket.

The spacer is made of a polymer or a ceramic material and is preferably formed to be 1 mm or less.

The spacer is preferably made of mica or an insulating sheet such as alumina.

The cooling jacket preferably has a through hole formed at a position spaced apart from the flow path space provided therein.

And a bolt formed with a thread is inserted into the through hole of the cooling jacket.

In order to improve the heat transfer efficiency to the cooling jacket, it is preferable to incorporate a high thermal conductive ceramic filler into the polymer resin composition.

It is preferable that the surfaces of the N-type pellet and the P-type pellet are coated with an anti-oxidation coating or peeled through an airgel.

According to another aspect of the present invention, there is provided a plasma display panel comprising: a first electrode unit and a second electrode unit, An N-type pellet and a P-type pellet seated between the first electrode portion and the second electrode portion; A cooling jacket provided at a lower portion of the second electrode portion and having a passage space therein to reduce the temperature of the second electrode portion and to form a through hole at a position spaced apart from the passage space; A mold provided at a lower portion of the cooling jacket and having an upper portion located below the second electrode portion; And a spacer provided between the cooling jacket and the mold, wherein the mold is filled with a polymer resin composition, and after curing, the first electrode portion, the second electrode portion, the N Type pellet, the P-type pellet, and the cooling jacket.

As described above, the present invention prevents detachment of pellets in a thermoelectric module of a high-temperature and high-vibration vehicle, thereby improving commerciality and durability, and integrating a cooling jacket with a thermoelectric module through a high- It is an effective invention.

1 is a view showing the structure of a thermoelectric module of the present invention,
2 is a view showing another embodiment of the thermoelectric module structure of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the thermoelectric module of the present invention includes a first electrode unit 100 and a second electrode unit 200 spaced apart from each other by a predetermined distance, a first electrode unit 100 and a second electrode unit 100, Type pellets 310 and P-type pellets 320 provided between the electrode units 200, a cooling jacket 400 for reducing the temperature of the second electrode units 200, a first electrode unit 100, The second electrode unit 200, the N-type pellet 310, the P-type pellet 320, and the cooling jacket 400.

As shown in FIG. 1, the first electrode unit 100 includes a plurality of first grooves 110 formed therein.

A plurality of second electrode units 200 are provided on the other side of the first electrode unit 100 at predetermined intervals, and a second groove 210 is formed on the inner side.

In the present invention, ceramic spray coating may be performed outside the first electrode unit 100 to prevent electrical short-circuiting. Alternatively, an insulating ceramic coating may be applied to the surface of the first electrode unit 100, or a thin ceramic plate- I will.

The N-type pellet 310 and the P-type pellet 320 are mounted as a thermoelectric element between the first groove 110 of the first electrode unit 100 and the second groove 210 of the second electrode unit 200 Thereby forming a thermoelectric module.

In this case, the first groove 110 of the first electrode unit 100 includes the 1-1 groove 111 and the 1-2 groove 112, and the second groove 110 of the second electrode unit 200 210 are made up of the (2-1) groove 211 and the (2-2) groove 212.

The N-type pellet 310 is seated on the 1-1-groove 111 and the 2-2-groove 212 and the P-type The pellet 320 is seated and the first electrode unit 100 and the second electrode unit 200 are connected to the N type pellet 310 and the P type pellet 320 in a staggered manner.

The first electrode part 100 forms a high temperature part and a brazing filler (not shown) is inserted into the first groove 110 to connect the N type pellet 310 and the P type pellet 320 to each other through a vacuum or a laser It is preferable to be bonded at a high temperature.

The second electrode unit 200 forms a low temperature part so that a soldering filler (not shown) is inserted into the second groove 210 to be bonded to the N type pellet 310 and the P type pellet 320 through heating. .

In order to prevent oxidation of the N-type pellets 310 and the P-type pellets 320, an antioxidant coating is formed on the surfaces of the N-type pellets 310 and the P-type pellets 320 by using a material having a coefficient of thermal expansion similar to that of the pellet material. Or the pores are peeled through an airgel to maintain the thermal conductivity of the thermoelectric module at a low level while preventing oxidation and ensuring durability.

The cooling jacket 400 is provided under the second electrode unit 200 and reduces the temperature of the second electrode unit 200 by forming a channel space (not shown) therein.

The present invention is characterized in that the second electrode unit 200, the N-type pellet 310, the P-type pellet 320, and the cooling jacket 400 are integrated with each other through the polymer resin composition to secure the durability of the thermoelectric module And at the same time, improves thermoelectric performance.

Meanwhile, it is preferable that a mold 500 capable of filling the polymer resin composition is provided under the cooling jacket 400.

A spacer 410 for forming an insulation gap may be provided between the second electrode unit 200 and the cooling jacket 400.

At this time, the spacer 410 is made of a polymer or a ceramic material and is formed to be 1 mm or less, but may be made of an insulating sheet such as mica or alumina.

In order to effectively transfer heat from the insulation gap to the cooling jacket 400, the polymer resin composition preferably contains 20 to 40% of a high thermal conductive ceramic filler in a curable resin such as epoxy. In this case, 20 to 40% The content is the degree of insulation gap so as to smooth the flow of the resin and to maintain the thermal conductivity.

The cooling jacket 400 is formed with a through hole 420 at a position spaced apart from the flow path space provided therein and a bolt 430 having a screw thread formed in the through hole 420 of the cooling jacket 400 is inserted .

That is, the cooling jacket 400, the first electrode unit 100, the second electrode unit 200, and the N-type pellet 400 are bonded to each other by the screw thread of the bolt 430 after the epoxy curing, Type pellet 310 and the P-type pellet 320 are integrally fixed to each other to ensure long-term durability. In addition, since there is no separate substrate, the heat transfer resistance at the interface can be reduced, which is advantageous in securing the thermoelectric performance.

On the other hand, after the mold 500 is removed after curing, the final thermoelectric module is completed.

2, the spacer 410 may be provided outside the mold 500 or the cooling jacket 400 without inserting the bolt 430 into the cooling jacket 400, and the polymer resin composition may be filled The composition is connected to the through hole 420 of the cooling jacket 400 so that the cooling jacket 400, the first electrode unit 100, the second electrode unit 200, the N-type pellet 310 And the P-type pellet 320 may be integrally formed.

As described above, the present invention provides a plasma display panel comprising a plurality of first electrode units 100 having a first groove 110 formed therein, a first electrode unit 100 spaced apart from the first electrode unit 100 by a predetermined distance, Type pellet 210 sandwiched between the first groove 110 of the first electrode unit 100 and the second groove 210 of the second electrode unit 200 and the second electrode unit 200 where the first electrode unit 210 and the second electrode unit 200 are formed, Type pellet 320 and a cooling jacket 400 provided below the second electrode unit 200 and having a flow path space therein to reduce the temperature of the second electrode unit 200 The first electrode unit 100, the second electrode unit 200, the N-type pellet 310, the P-type pellet 320, and the cooling jacket 400 are integrated with each other through the polymer resin composition The pellet is prevented from falling off from the thermoelectric module of the high-temperature and high-vibration vehicle to improve the merchantability, durability is ensured and the cooling jacket 400 is integrated with the thermoelectric module through the high- Increase.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood that various changes and modifications may be made without departing from the scope of the appended claims.

100: first electrode part 110: first groove
200: second electrode part 210: second groove
310: N-type pellet 320: P-type pellet
400: cooling jacket

Claims (13)

A plurality of first electrode portions having a first groove formed inside thereof;
A second electrode part provided at a predetermined distance from the first electrode part and having a second groove formed therein;
An N-type pellet and a P-type pellet which are seated between a first groove of the first electrode part and a second groove of the second electrode part;
And a cooling jacket provided below the second electrode part and having a flow path space formed therein to reduce the temperature of the second electrode part,
The first electrode portion, the second electrode portion, the N-type pellet, the P-type pellet, and the cooling jacket are integrated through the polymer resin composition,
The first electrode of the first electrode part may include a 1-1 groove and a 1-2 groove, and the second electrode may include a 2-1 groove and a 2-2 groove,
The N-type pellet is placed on the first 1-1 groove and the second 2-2 groove, the P-type pellet is seated on the 1-2 groove and the 2-1 groove, And the second electrode portion is connected to the N-type pellet and the P-type pellet in a staggered form.
delete The method according to claim 1,
Wherein the first electrode part forms a high-temperature part, and a brazing filler is inserted into the first groove, and the N-type pellet and the P-type pellet are bonded to each other through a vacuum or a laser.
The method according to claim 1,
Wherein the second electrode part forms a low-temperature part, and a soldering filler is inserted into the second groove and is bonded to the N-type pellet and the P-type pellet through heating.
The method according to claim 1,
And a mold capable of filling the polymeric resin composition is provided under the cooling jacket.
The method according to claim 1,
And a spacer for forming an insulation gap is provided between the second electrode portion and the cooling jacket.
The method of claim 6,
Wherein the spacer is made of a polymer or a ceramic material and is formed to have a size of 1 mm or less.
The method of claim 6,
Wherein the spacer is made of mica or an insulating sheet such as alumina.
The method according to claim 1,
Wherein the cooling jacket has a through hole formed at a position spaced apart from the flow path space provided therein.
The method of claim 9,
And a bolt formed with a thread is inserted into the through hole of the cooling jacket.
The method according to claim 1,
And a high thermal conductive ceramic filler is included in the polymer resin composition to improve heat transfer efficiency to the cooling jacket.
The method according to claim 1,
Wherein the N-type pellet and the P-type pellet are coated with an anti-oxidation coating or an airgel.
A first electrode part and a second electrode part formed with grooves on the inner side and spaced apart from each other by a predetermined distance;
An N-type pellet and a P-type pellet seated between the first electrode portion and the second electrode portion;
A cooling jacket provided at a lower portion of the second electrode portion and having a passage space therein to reduce the temperature of the second electrode portion and to form a through hole at a position spaced apart from the passage space;
A mold provided at a lower portion of the cooling jacket and having an upper portion located below the second electrode portion;
And a spacer provided between the cooling jacket and the mold,
The mold is filled with the polymer resin composition, and after curing, the first electrode portion, the second electrode portion, the N-type pellet, the P-type pellet, and the cooling jacket are united with each other through the through hole of the cooling jacket And,
Wherein the first electrode portion includes a first groove formed of a 1-1 groove and a 1-2 groove and the second electrode portion includes a second groove formed of a 2-1 groove and a 2-2 groove,
The N-type pellet is placed on the first 1-1 groove and the second 2-2 groove, the P-type pellet is seated on the 1-2 groove and the 2-1 groove, And the second electrode portion is connected to the N-type pellet and the P-type pellet in a staggered form.
KR1020150169980A 2015-12-01 2015-12-01 Thermoelectric module structure KR101795172B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023191407A1 (en) * 2022-03-28 2023-10-05 주식회사 세진이에스 Power generation module

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KR102434260B1 (en) 2018-06-26 2022-08-19 엘지이노텍 주식회사 Thermoelectric element
WO2022067323A1 (en) * 2020-09-23 2022-03-31 Micropower Global Limited Thermoelectric device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005175022A (en) * 2003-12-08 2005-06-30 Toshiba Corp Thermoelectric conversion device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005175022A (en) * 2003-12-08 2005-06-30 Toshiba Corp Thermoelectric conversion device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023191407A1 (en) * 2022-03-28 2023-10-05 주식회사 세진이에스 Power generation module

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