KR101544083B1 - Portable apparatus for charging device using thermoelectric element and method thereof - Google Patents

Abstract

The present invention relates to a portable thermoelectric charging device and a manufacturing method thereof. The thermoelectric charging device according to an embodiment of the present invention comprises: a thermoelectric unit to convert heat energy into electric energy; and an output unit disposed on one side of the thermoelectric unit and electrically connected to the thermoelectric unit to output the electric energy. The thermoelectric unit comprises: a first substrate on which a plurality of first thermoelectric members are layered; and a second substrate on which a plurality of second thermoelectric members forming thermoelectric pairs with the first thermoelectric members are layered. The first substrate and the second substrate are fused to bring a surface of the first substrate on which the plurality of first thermoelectric members are layered into contact with a surface of the second substrate on which the plurality of second thermoelectric members are layered. The plurality of first thermoelectric members are layered in a direction from one end of the first substrate to the other end of the first substrate. The plurality of second thermoelectric members are layered in a direction from one end of the second substrate to the other end of the second substrate. The plurality of first thermoelectric members and the plurality of second thermoelectric members are alternately connected in series. One end of an n^th thermoelectric member among the plurality of first thermoelectric members and the other end of an (n+1)^th thermoelectric member among the plurality of first thermoelectric members are connected by the second thermoelectric member. The output unit is electrically connected to the one end and the other end of the first thermoelectric member and the second thermoelectric member which are connected in series. The first substrate and the second substrate can be flexible substrates.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable thermoelectric charging device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable thermoelectric charging apparatus and a method of manufacturing the same, and more particularly, to a thermoelectric charging apparatus having a highly portable portable thermoelectric element for converting thermal energy into electric energy.

The battery has been used as a power source for driving or operating the device from the conventional electric and electronic products to the automobile. As a result, the power consumption of the battery-powered devices is becoming larger as the functions of the devices are more diversified. This increase in the power consumption leads to an increase in the capacity of the battery.

In the conventional battery, the battery itself installed in the device is used as a main power source, and the capacity of the battery is determined by the capacity of the battery. Therefore, in order to increase the capacity of the battery, the volume of the battery naturally becomes large. As a result, a product such as a portable terminal is restricted in downsizing.

Especially, in recent years, smartphones have been widely used, and the energy consumption of the smartphone is much larger than the energy consumption of the conventional feature phone, so that the battery needs to be frequently replaced or charged frequently.

In order to solve such a problem, an auxiliary battery for charging a portable terminal such as a smart phone is used as shown in FIG. However, such a secondary battery is not only bulky but also has a problem in that it is troublesome to use the secondary battery because the secondary battery needs to be charged separately in order to use the secondary battery.

Also, as shown in FIG. 1B, an apparatus for charging a portable terminal having a power generating unit using solar or sunlight has been developed. However, this apparatus is also bulky and inconvenient to carry.

Therefore, it is required to develop a portable charging device which is not required to be charged separately and is very easy to carry.

Korean Patent No. 10-1391279

It is an object of the present invention to provide a portable thermoelectric charging apparatus and a method of manufacturing the same.

Specifically, it is intended to avoid the inconvenience of frequently charging and replacing the battery of the present invention.

Also. If you need to use a portable electronic device in an area where the battery can not be charged, or if you need to use a portable electronic device urgently, you want to supply power.

It is also an object of the present invention to provide a charging device which is very portable, such as a wallet, a mobile phone case, a belt, etc., to a user.

In addition, the electrode switch is used to charge the battery using a cold source as well as a heat source.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. It can be understood.

A thermoelectric charging apparatus according to an embodiment of the present invention for realizing the above-mentioned problems includes a thermal power unit for converting thermal energy into electric energy; And an output unit disposed at one side of the thermoelectric unit and electrically connected to the thermoelectric unit to output the electric energy, wherein the thermoelectric unit includes a first substrate on which a plurality of first thermoelectric members are deposited, And a second substrate on which a plurality of second thermoelectric members forming a thermocouple with one thermoelectric member are deposited, wherein the surface on which the plurality of first thermoelectric members are deposited and the surface on which the plurality of second thermoelectric members are deposited contact each other, The first substrate and the second substrate are fusion-bonded, the plurality of first thermoelectric members are deposited in a direction from one end of the first substrate toward the other end, and the plurality of second thermoelectric members are bonded from one end of the second substrate And the plurality of first thermoelectric members and the plurality of second thermoelectric members are alternately connected in series, wherein one end of the nth thermoelectric member and the other end of the n And the other end of the first thermoelectric member is connected to the second thermoelectric member, and the output unit is electrically connected to one end and the other end of the first thermoelectric member and the second thermoelectric member connected in series, The second substrate may be a flexible substrate.

The apparatus may further include an electrode changeover switch that reverses the polarity of the electric energy output by the output unit.

The thermocouple formed by the first thermoelectric member and the second thermoelectric member may be a copper-constantan thermocouple or a Bi ₂ Te ₃ -Sb ₂ Te ₃ thermocouple.

The first substrate and the second substrate have a rectangular shape of 8.6 cm in width and 5.35 cm in length or 8.6 cm in width and 8.6 cm in length, 5.2 cm, or rectangular business card format, with a width of 9 cm and a length of 5 cm.

The power unit may further include a battery electrically connected to the thermal unit to store the electrical energy, and the output unit may be electrically connected to the battery to output the stored electrical energy.

The power module may further include a boost module electrically connected to the heat source to boost the voltage of the electric energy, and the output unit may output the electric energy boosted by the voltage.

Further, the voltage of the electric energy converted by the thermoelectric conversion part can be determined by the following equation.

Equation

는 상기 전기 에너지의 전압이고, 상기

은 상기 복수의 제 1 열전부재의 일단 및 상기 복수의 제 2 열전부재의 일단이 접하는 점의 온도이며, 상기

는 상기 복수의 제 1 열전부재의 타단 및 상기 복수의 제 2 열전부재의 타단이 접하는 점의 온도이고, 상기

는 상기 제 1 열전부재 및 상기 제 2 열전부재가 이루는 열전쌍의 제벡계수이며, 상기

은 상기 복수의 제 1, 2 열전부재가 이루는 열전쌍의 수이다.)(In the above equation,

Is the voltage of the electric energy,

Is a temperature of a point where one end of the plurality of first thermoelectric members and one end of the plurality of second thermoelectric members are in contact with each other,

Is a temperature of a point where the other end of the plurality of first thermoelectric members and the other end of the plurality of second thermoelectric members are in contact with each other,

Is a bending coefficient of a thermocouple between the first thermoelectric member and the second thermoelectric member,

Is the number of thermocouples of the first and second thermoelectric elements.

And an extension line electrically connected to the output unit and extending an end of the output unit.

Also, the output terminal may be a single output of Micro-USB, Mini USB, or Lightning 8-pin.

Also, the thermoelectric part may be waterproofed so that moisture does not penetrate into the thermoelectric part.

A method of manufacturing a thermoelectric charging device according to an embodiment of the present invention for realizing the above-mentioned problems is characterized in that a plurality of first thermoelectric members are deposited on a first substrate, and a plurality of first thermoelectric members A first step of depositing a plurality of second thermoelectric elements; Wherein the first substrate and the second substrate are fused to each other such that a surface of the first substrate on which the plurality of first thermoelectric members are deposited and a surface of the second substrate on which the plurality of second thermoelectric members are deposited are in contact with each other, Wherein the first substrate and the second substrate are flexible substrates and the first step includes depositing the plurality of first thermoelectric members in a direction from one end of the first substrate toward the other end, The plurality of first thermoelectric members and the plurality of second thermoelectric members are alternately connected in series and the plurality of second thermoelectric members are evaporated in a direction from one end of the second substrate toward the other end, And one end of the n < th > thermoelectric member and the other end of the (n + 1) < th > thermoelectric member are connected to each other so that the second thermoelectric member is connected to one end of the first thermoelectric member and the second thermoelectric member, At the other end It may further deposited an output which is connected to the term.

The method may further include connecting a battery that stores electrical energy generated from the first thermoelectric member and the second thermoelectric member.

On the other hand, a recording medium related to an example of the present invention for realizing the above-mentioned problem is a tangible program of instructions executable by a digital processing apparatus to perform a thermoelectric charging apparatus manufacturing method, A method of manufacturing a thermoelectric charging device, comprising the steps of: depositing a plurality of first thermoelectric members on a first substrate; depositing a plurality of thermoelectric elements on the second substrate in a thermocouple with the plurality of first thermoelectric elements; A first step of depositing two thermoelectric elements; Wherein the first substrate and the second substrate are fused to each other such that a surface of the first substrate on which the plurality of first thermoelectric members are deposited and a surface of the second substrate on which the plurality of second thermoelectric members are deposited are in contact with each other, Wherein the first step includes depositing the plurality of first thermoelectric members in a direction from one end to the other end of the first substrate and depositing the plurality of first thermoelectric members in a direction toward the other end from one end of the second substrate, A plurality of first thermoelectric members and a plurality of second thermoelectric members are alternately connected in series, and one end of the nth thermoelectric member and the n + 1 th thermoelectric member are connected in series, Depositing the other end of the member to connect the second thermoelectric member and further depositing an output portion electrically connected to one end and the other end of the first thermoelectric member and the second thermoelectric member connected in series to the first substrate.

According to an embodiment of the present invention, there is provided a computer program that can be executed by a computer to perform a method of manufacturing a thermoelectric charging device, the method comprising: A first step of depositing a first thermoelectric member on the first substrate and a plurality of second thermoelectric members thermo-paired with the plurality of first thermoelectric members on the second substrate; Wherein the first substrate and the second substrate are fused to each other such that a surface of the first substrate on which the plurality of first thermoelectric members are deposited and a surface of the second substrate on which the plurality of second thermoelectric members are deposited are in contact with each other, Wherein the first step includes depositing the plurality of first thermoelectric members in a direction from one end to the other end of the first substrate and depositing the plurality of first thermoelectric members in a direction toward the other end from one end of the second substrate, A plurality of first thermoelectric members and a plurality of second thermoelectric members are alternately connected in series, and one end of the nth thermoelectric member and the n + 1 th thermoelectric member are connected in series, Depositing the other end of the member to connect the second thermoelectric member and further depositing an output portion electrically connected to one end and the other end of the first thermoelectric member and the second thermoelectric member connected in series to the first substrate.

A charging system according to an embodiment of the present invention for realizing the above-mentioned problems is a charging system including a thermoelectric charging device according to any one of claims 1 to 12 and a portable terminal supplied with electric energy by the thermoelectric charging device The portable terminal may include a step-up module for stepping up the voltage of the electric energy.

In addition, the portable terminal may include an application for receiving an input from a user and controlling an operation of the booster module.

On the other hand, a card related to an embodiment of the present invention for realizing the above-mentioned problems may be combined with a thermoelectric charging device according to a card including a credit card, a check card and a traffic card.

The present invention can provide a portable thermoelectric charging apparatus and a manufacturing method thereof to a user.

Specifically, the inconvenience of frequently charging and replacing the battery of the present invention can be prevented.

Also. It is possible to supply electric power when the use of portable electronic equipment is required in an area where the battery can not be charged or when the use of portable electronic equipment is urgently required.

In addition, it is possible to supply to the user a charging device that is very portable, such as being put in a wallet, a mobile phone case, a belt, or the like.

In addition, the electrode changeover switch can be charged using a cold source as well as a heat source.

It should be understood, however, that the effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those skilled in the art to which the present invention belongs It will be possible.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate a preferred embodiment of the invention and, together with the description, serve to provide a further understanding of the technical idea of the invention, It should not be construed as limited.
1A shows an auxiliary battery for charging a portable terminal.
1B shows a photovoltaic power charger for charging a portable terminal.
Fig. 2 is a view showing that two kinds of metals causing the Seebeck effect are connected. Fig.
3 is a block diagram of a thermoelectric charging device according to one embodiment of the present invention.
4A is a view illustrating one surface of a first substrate according to an embodiment of the present invention.
4B is a view illustrating one surface of a second substrate according to an embodiment of the present invention.
4C is a view illustrating a structure in which a first thermoelectric member and a second thermoelectric member are connected to each other according to an embodiment of the present invention.
5 is a cross-sectional view showing that a first substrate and a second substrate are fusion-bonded according to an embodiment of the present invention.
6A to 6C are views illustrating a structure in which a first substrate, a second substrate, and a first thermoelectric member and a second thermoelectric member are connected to each other according to an embodiment of the present invention.
7 is a plan view of a thermoelectric charging apparatus having an electrode changeover switch according to an embodiment of the present invention.
8 is a diagram showing an example of electrode switching of the electrode change-over switch according to one embodiment of the present invention.
9 is a flowchart showing a method of manufacturing a thermoelectric charging device according to an embodiment of the present invention.
10 shows a portable terminal directly connected to a thermoelectric charging device according to an embodiment of the present invention.
11 illustrates that an application is implemented in a portable terminal connected to an extension of a thermoelectric charging device and connected to an end of an extension line, in accordance with one embodiment of the present invention.
12 is a diagram showing a thermoelectric charging device in which a phrase is printed according to an embodiment of the present invention.

As described above, there is a problem that the charging of the portable terminal using the auxiliary battery or the solar generator is inconvenient to use or carry.

In order to solve this problem, a thermoelectric charging device using thermoelectric effect of a thermoelectric element is proposed in this specification.

First, a description will be given of the Seebeck effect that the thermoelectric charger of the present invention utilizes to generate electric energy.

FIG. 2 is a diagram showing two kinds of metals connected to cause the Seebeck effect. As shown in FIG. 2, when two kinds of metals or semiconductors are bonded to each other and a temperature difference is applied thereto, thermoelectric power is generated in the circuit. . This phenomenon was discovered by T. Seebeck in 1821 on Cu and Bi or Sb.

Thermocouple type thermometers that measure the thermoelectric power and convert it into temperature are widely used industrially and various thermocouples have been developed from high temperature to extremely low temperature.

Thermocouples for temperature measurement include silver-gold (with iron), chromel-gold (with iron), copper-constantan, chromel-constantan, chromel-alumel, platinum-rhodium-platinum, tungsten-tungsten rhenium , There are several.

On the other hand, thermoelectric power generator (Sembeck coefficient) is very big compared with metal, so thermoelectric generator using it has been developed and used in unmanned observatories, lighthouses and submarine beacons.

This Seebeck effect will be described in more detail below.

For the sake of clarity, the Seebeck effect is a phenomenon in which electromotive force is generated by the temperature difference between two different metal joints. A pair of thermoelectric elements, which are different metals that generate the Seebeck effect, is called a thermocouple.

The most widely used materials for thermoelectric devices are Bi ₂ Te ₃ and Sb ₂ Te ₃ series.

The voltage generated in the Seebeck effect can be expressed by the following equation.

Equation  One

 Here, α is a value called a Seebeck coefficient, which means a voltage derived from a unit temperature difference. In general, metals have a very small value of several tens of μV / K, and in the case of semiconducting alloys, they have a value of several hundred μV / K. The larger the value of the Seebeck coefficient is, the larger the electromotive force generated by the thermoelectric effect is, of course, a good thermoelectric device.

In the field of thermoelectric devices, on the other hand, the ZT value is used as a figure of merit for the characteristics of the thermoelectric elements of each material. If there is a temperature difference, the temperature of the low temperature part is T _L , the temperature of the high temperature part is T _H , the thermal conductivity of the material used for the thermoelectric effect is k , and the electric conductivity is σ, then ZT is expressed as follows.

Equation  2

Where T is the average temperature of the hot and cold sections, T = ( T _H + T _L ) / 2 .

In Equation (2), ZT is proportional to the square of the Seebeck coefficient. Thus, it can be understood that the larger the ZT value is, the better for high thermoelectric effect. In general, silicon, which is a widely used semiconductor material, has an electrical conductivity of 150 W / cm ² K, which means that the ZT at room temperature is only 0.01.

Therefore, when n-type and p-type semiconductor materials are used, an electromotive force is generated due to the movement of carriers inside these semiconductors when there is a temperature difference between both ends. By using this electromotive force, it is possible to easily generate electricity.

On the other hand, the electromotive force (thermal power) generated by the Seebeck effect is proportional to the temperature difference between the two contacts. The magnitude of the heat current depends on the type of metal (or thermocouple) or semiconductor and the temperature difference between the two contacts. In addition, the electrical resistance of the metal wire is also involved here.

In a circuit made of commonly known metals such as copper and constantan, when the temperature difference between the two contacts is 100 ° C, an electromotive force of 4.24 이 is generated. The current flows through the contacts of the high temperature part, To the low copper.

Hereinafter, a preferred embodiment of a charging device capable of supplying electric energy to a portable terminal by self-power generation using the above-described Seebeck effect, that is, a thermoelectric effect will be described with reference to the drawings.

In addition, the embodiment described below does not unduly limit the contents of the present invention described in the claims, and the entire configuration described in this embodiment is not necessarily essential as the solution means of the present invention.

3 is a block diagram of a thermoelectric charging device according to one embodiment of the present invention.

3, the thermoelectric charging apparatus of the present invention includes a thermal power source 100, an output unit 200, an electrode changeover switch 300, a battery 400, a voltage boosting module 500, and a controller 600 can do. However, the components shown in Fig. 3 are not essential, and a thermoelectric charging device having components having more or fewer components may be implemented.

First, the thermal front unit 100 is configured to convert heat energy into electric energy by using the above-described Seebeck effect. The thermal unit 100 includes a first substrate 110a, a first thermoelectric member 120a, a connecting line 130, a second substrate 110b And a second thermoelectric member 120b.

4A is a view illustrating one surface of a first substrate according to an embodiment of the present invention. Referring to FIG. 4A, a plurality of first thermoelectric members 120a are deposited on the first substrate 110a in a direction from one end of the first substrate 110a toward the other end, and a plurality of first thermoelectric members 120a, A connection line 130 connecting the two thermoelectric members 120b may be deposited. Also, an output unit 200 for outputting electric energy generated by the thermal power source 100 may be disposed.

The first substrate 110a may be a flexible substrate using polyimide or the like for portability. Further, the first thermoelectric element 120a is an element that can utilize various effects that are caused by the interaction of heat and electricity.

Referring to FIG. 4B, a plurality of second thermoelectric members 120b, such as a first substrate 110a, may be bonded to a second substrate 110b, for example, In the direction from the one end to the other end. The second thermoelectric member 120b is a thermoelectric element forming a thermocouple with the first thermoelectric member 120a. Examples of thermocouples formed by the first thermoelectric member 120a and the second thermoelectric member 120b include a copper- Bi ₂ Te ₃ -Sb ₂ Te _3, and the like.

The first substrate 110a and the second substrate 110b are fused such that a plurality of first thermoelectric members 120a and a plurality of second thermoelectric members 120b are in contact with the deposited surfaces.

5 is a cross-sectional view showing that the first substrate and the second substrate are fusion-bonded according to one embodiment of the present invention. As shown in FIG. 5, the first thermoelectric member 120a and the second thermoelectric member 120b The substrate 110a and the second substrate 110b are fused.

4C is a view illustrating a structure in which a first thermoelectric member and a second thermoelectric member are connected to each other according to an embodiment of the present invention.

When the first substrate 110a and the second substrate 110b are fusion-bonded, the plurality of first thermoelectric members 120a and the plurality of second thermoelectric members 120b are alternately connected in series, And the other end of the n + 1th row of heaters 100 is connected to the second thermoelectric member 120b. At this time, the connection line 130 deposited on the first substrate 110a connects the first thermoelectric member 120a and the second thermoelectric member 120b.

The first thermoelectric member 120a and the second thermoelectric member 120b are alternately connected in series to form a thermocouple. If the plurality of first thermoelectric members 120a and the plurality of second thermoelectric members 120b are alternately connected in series, the output voltage can be increased. When a plurality of power sources are connected in series, the total voltage is the sum of the voltages of the respective power sources. The voltage outputted from the entire heat source 100 can be expressed by the following equation.

Equation  3

는 상기 전기 에너지의 전압이고, 상기

은 상기 복수의 제 1 열전부재(120a)의 일단 및 상기 복수의 제 2 열전부재(120b)의 일단이 접하는 점의 온도이며, 상기

는 상기 복수의 제 1 열전부재(120a)의 타단 및 상기 복수의 제 2 열전부재(120b)의 타단이 접하는 점의 온도이고, 상기

는 상기 제 1 열전부재(120a) 및 상기 제 2 열전부재(120b)가 이루는 열전쌍의 제벡계수이며, 상기

은 상기 복수의 제 1, 2 열전부재(120a, 120b)가 이루는 열전쌍의 수이다.)(In the above formula (3)

Is the voltage of the electric energy,

Is a temperature of a point where one end of the plurality of first thermoelectric members (120a) and one end of the plurality of second thermoelectric members (120b) are in contact with each other,

Is a temperature of a point where the other end of the plurality of first thermoelectric members (120a) and the other end of the plurality of second thermoelectric members (120b) are in contact with each other,

Is a bending coefficient of a thermocouple formed between the first thermoelectric member (120a) and the second thermoelectric member (120b)

Is the number of thermocouples formed by the first and second thermoelectric members 120a and 120b.

과 상기

의 온도차가 클수록 출력전압의 크기가 높아진다.The output voltage can be further increased as the number of thermocouples formed by the first thermoelectric member 120a and the second thermoelectric member 120b increases,

And

The larger the temperature difference, the higher the output voltage becomes.

6A to 6C illustrate a structure in which a first substrate 110a, a second substrate 110b, and a structure in which a first thermoelectric member 120a and a second thermoelectric member 120b are connected to each other according to an embodiment of the present invention FIG.

6A to 6C are sectional views of the first and second thermoelectric elements 120a and 120b when the first substrate 110a and the second substrate 110b are fusion-bonded to each other, The first thermoelectric member 120a and the second thermoelectric member 120b may be deposited in a zigzag shape. With this arrangement, the first thermoelectric member 120a and the second thermoelectric member 120b can be connected to each other without the connection line 130 of FIG. 4A.

On the other hand, the heat sink 100 may be formed to have a size of a business card, a size that can be embedded in a waist belt, or a size that can be embedded in a mobile phone case.

For example, all of the heat 100 may be manufactured in a rectangle shape, such as 8.6 cm in width and 5.35 cm in height, to be stored in the card slot of the wallet, which is the ISO International Standard for Credit Cards. That is, the first substrate 110a and the second substrate 110b may have a rectangular shape with a width of 8.6 cm and a length of 5.35 cm. In addition to this, a rectangle shape of a business card standard is 8.6 cm in width and 5.2 cm in vertical length or a rectangle in business card format, and the horizontal length is 9 cm and the vertical length is 5 cm.

In addition, a clip or the like is attached to one surface of the heat conductive member 100 to attach the heat conductive member 100 to a belt or the like, thereby enhancing portability.

On the other hand, the heat sink 100 can be immersed in hot water to absorb heat. Therefore, the heat preheating section 100 can be waterproofed so as to prevent water from penetrating into the inside thereof.

The output unit 200 is disposed at one side of the thermal power source 100 and is electrically connected to the thermal power source 100 to output electrical energy generated by the thermal power source 100.

4A and 4, the output unit 200 is located at one side of the thermal power source 100 and includes a first thermoelectric member 120a and a second thermoelectric member 120b connected in series, As shown in FIG.

The end of the output unit 200 may be formed of a universal serial bus (USB) standard for general purpose, and may be formed of a terminal such as Micro USB, Mini USB (Mini 5 pin), or Lightning 8 pin have.

Next, the electrode changeover switch 300 is configured to change the polarity of the electric energy output from the output unit 200 in the reverse direction.

7 is a plan view of a thermoelectric charging device having an electrode changeover switch 300 according to an embodiment of the present invention. Referring to FIG. 7, the electrode changeover switch 300 may be disposed on one side of the heat source 100 have.

When using the thermoelectric charging device of the present invention, one end of the heat source 100, in which one point of two points where the first thermoelectric element 120a and the second thermoelectric element 120b are in contact, Body heat or hot water or the like to generate a temperature difference between the both ends of the heat exchanger 100.

However, if there is no hot heat source capable of heating the contact point, or if the hand or the body serving as the heat source can not sufficiently heat the contact point, the electrode switch 300 is used to switch the contact point to the cold junction, It is possible to generate electricity by switching to a contact point.

이 열전부(100) 온접점의 온도이고

가 온접점반대편의 지점인 열전부(100) 냉접점의 온도라고 하였을 때, 온접점을 가열하여

이

보다 크면 양의 전압이 발생한다.That is, in Equation (3)

(100) is the temperature of the on-

Is the temperature of the hot junction 100, which is the point on the opposite side of the hot junction, the hot junction is heated

this

A positive voltage is generated.

이

보다 작아진다. 이 때 전극전환 스위치(300)를 이용하여 전극을 전환하면 양의 전압을 발생시킬 수 있다.However, if it is difficult to heat the contact point and the contact point is in contact with a cold place such as ice water

this

. At this time, when the electrode is switched using the electrode changeover switch 300, a positive voltage can be generated.

8, the electrode changeover switch 300 is positioned at the HOT position and the electric energy generated at the heat source 100 is applied to the electrode change- And output to the output unit 200 along the conductor represented by the solid line. At this time, when the electrode change-over switch 300 is switched to the COLD state, the electric energy generated in the heat generator 100 is output to the output unit 200 along the conductor indicated by the dotted line, and the on- It is possible to generate electric energy by contacting cold points such as ice water.

Next, the battery 400 is configured to store electric energy generated by the thermal power source 100, that is, a battery. When the storage battery 400 is provided, the output unit 200 may be electrically connected to the storage battery 400 to output electrical energy stored in the storage battery 400.

The battery 400 may be in the form of a thin film battery, and the material of the thin film substrate provided in the thin film battery may be a polyolefin, a styrenic block copolymer, a metallocene-catalyzed polyolefins, polyesters, polyurethanes, and polyether amides. The term " polyether "

In the case where the battery 400 is provided, the thermoelectric charging device may further include a charging circuit part electrically connected to the thermal power source 100. The charging voltage may be generated based on the electromotive force generated in the thermal power source 100, .

In addition, the thermoelectric charging device may further include a sensing unit for measuring a charged amount of the battery 400 in real time.

By providing such a battery 400, electric energy can be stored in advance, and the battery can be charged when electric energy can not be generated by using the thermal power source 100.

Next, the voltage-raising module 500 is configured to increase the voltage of the electric energy outputted from the thermal power source 100. [ When the temperature difference between the ON and the cold junctions is not sufficient, the magnitude of the output voltage may be smaller than the magnitude of the required voltage. In this case, the voltage output from the output unit 200 can be increased by using the voltage step-up module 500.

Conversely, the voltage reduction module may further include a voltage reduction module capable of reducing the voltage because the voltage output from the thermal power source 100 may be higher than a required voltage. It may also include a constant voltage module to ensure that the magnitude of the output voltage is always constant.

Next, the control unit 600 controls the general operation of each configuration of the thermoelectric charging apparatus of the present invention.

Hereinafter, a method of manufacturing the thermoelectric charging device will be described in detail based on the above-described configurations.

9 is a flowchart showing a method of manufacturing a thermoelectric charging device according to an embodiment of the present invention.

A plurality of first thermoelectric members 120a are deposited on a first substrate 110a and a plurality of second thermoelectric members 120b are thermally coupled to the plurality of first thermoelectric members 120a on a second substrate 110b 120b are deposited (S110).

When the first thermoelectric member 120a is deposited, the first thermoelectric member 120b is evaporated from one end of the first substrate 110a toward the other end, and the second thermoelectric member 120b is also evaporated from one end of the second substrate 110b toward the other end .

When depositing the first and second thermoelectric members 120a and 120b, when the first substrate 110a and the second substrate 110b are fused, a plurality of first thermoelectric members 120a and a plurality of second thermoelectric members 120a, Member 120b are alternately connected in series and the other end of the nth heat member 100 and the nth heat member 100b of the first thermoelectric member 120a are connected to the second thermoelectric member 120b ).

4A or 6A, a plurality of first thermoelectric members 120a are deposited on the first substrate 110a and a plurality of second thermoelectric members 120b are formed on the second substrate 110b, (120b).

In addition, an output unit 200 electrically connected to one end and the other end of the first thermoelectric member 120a and the second thermoelectric member 120b connected in series may be further deposited on the first substrate 110a.

Next, the surface of the first substrate 110a on which the plurality of first thermoelectric members 120a are deposited and the surface of the second substrate 110b on which the plurality of second thermoelectric members 120b are deposited are in contact with each other, 1 substrate 110a and the second substrate 110b are fused (S120).

When the first substrate 110a and the second substrate 110b are fused to each other, a plurality of first thermoelectric members 120a and a plurality of second thermoelectric members 120b ) Are alternately connected in series. The cross section of the fused heat sink 100 is shown in Fig.

Next, the first and second thermoelectric members 120a and 120b are connected to a battery 400 that stores electrical energy generated in the first thermoelectric member 120a (S130).

Hereinafter, a configuration additionally included in the thermoelectric charging device of the present invention and a portable terminal connected to the thermoelectric charging device of the present invention will be described.

The thermoelectric charging apparatus of the present invention may further include an extension line 700 for extending the end of the output unit 200 for ease of use.

10 shows a portable terminal directly connected to a thermoelectric charging device according to an embodiment of the present invention.

Figure 11 also shows that an application is implemented in a portable terminal connected to an extension of the thermoelectric charging device and connected to the end of the extension line, in accordance with one embodiment of the present invention.

As shown in FIG. 10, the output terminal of the thermoelectric charging device may be formed of Micro-USB, Mini-USB, Lightning 8 pin or the like so as to directly engage with the power input part of the portable terminal.

As shown in FIG. 11, the output unit 200 of the thermoelectric charging device is provided with an extension line 700 having a predetermined length, and the portable terminal 800 or the like is connected to the end of the extension line to charge the extension. The end of the extension line 700 may also be formed of a USB standard for general use and may be formed of terminals such as Micro USB, Mini USB (Mini 5 pin), or Lightning 8 pin (terminal of an Apple device) have.

The portable terminal connected to the thermoelectric charging device may include a voltage boosting module for boosting the voltage of the electric energy supplied from the thermoelectric charging device. The control unit of the portable terminal senses the voltage of the input electric energy, and when the sensed voltage is lower than the required voltage, the control unit controls the boosting module to boost the input voltage to a required voltage.

As shown in FIG. 11, the portable terminal connected to the thermoelectric charging device may include an application for controlling the operation of the voltage step-up module according to a user's input. As shown in FIG. 11, the portable terminal senses and displays an input voltage, and receives a voltage to be stepped up by the voltage step-up module. However, the application for controlling the voltage step-up module is not limited to the example shown in FIG.

On the other hand, the thermoelectric charging device of the present invention uses a flexible substrate and has a small size, which is very portable. Therefore, a promotional stationery or a picture can be printed on the surface of such a thermoelectric charging device to be used as a promotional article, a gift, and a promotional article.

FIG. 12 is a diagram showing a thermoelectric charging device in which a phrase is printed according to an embodiment of the present invention. As shown in FIG. 12, not only a phrase can be printed as a company's promotional material, You can combine designs.

In addition, the thermoelectric charging device of the present invention can be utilized as a credit card having a thermoelectric charging device coupled with a credit card, a transportation card, a check card, etc., manufactured in accordance with the ISO International Standard of a credit card as described above. This is because the thickness of the thermoelectric charging device of the present invention can be made very thin.

In addition, the thermoelectric charging device of the present invention can be utilized for military products using electric energy. For example, when the electric power of the battery is exhausted during the military operation, the electric energy can be charged anytime and anywhere using the present invention.

The present invention can also be embodied as computer-readable codes on a computer-readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored. Examples of the computer-readable recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may be implemented in the form of a carrier wave (for example, transmission over the Internet) . In addition, the computer-readable recording medium may be distributed over network-connected computer systems so that computer readable codes can be stored and executed in a distributed manner. In addition, functional programs, codes, and code segments for implementing the present invention can be easily inferred by programmers of the technical field to which the present invention belongs.

The portable thermoelectric charging apparatus and the method of manufacturing the same described above are not limited to the configuration and method of the embodiments described above, but the embodiments may be modified so that all or part of each embodiment Or may be selectively combined.

The present invention applying the above-described configuration can provide a charging device that can easily carry a portable electronic device such as a business card.

When the thermoelectric charging device of the present invention is used, a low-temperature heat source such as a body temperature of a person, a liquid such as a hot water, a liquid such as a station or a domestic hot water pipe is brought into contact with an on contact which is a point where the first thermoelectric element and the second thermo- The temperature difference between the first thermoelectric element and the second thermoelectric element is different from the temperature of the second thermoelectric element.

In addition, by using an electrode changeover switch, it is possible to supply electric power by switching the on-contact point to a cold contact point to contact with a cold place such as ice water and wrapping the opposite point with a heat insulating material such as clothing, toilet paper, styrofoam or air cap to generate a temperature difference.

100: all heat
110a: a first substrate
110b: second substrate
120a: first thermoelectric element
120b: a second thermoelectric element
130: connection line
200: Output section
300: Electrode changeover switch
400: Battery
500: step-up module
600:
700: extension line
800: portable terminal

Claims (17)

All of the heat that converts thermal energy into electrical energy; And
And an output unit disposed at one side of the thermoelectric unit and electrically connected to the thermoelectric unit to output the electric energy,
The heat-
A first substrate on which a plurality of first thermoelectric members are deposited and a second substrate on which a plurality of second thermoelectric members forming a thermocouple with the plurality of first thermoelectric members are deposited,
The first substrate and the second substrate are fused so that a surface on which the plurality of first thermoelectric members are deposited and a surface on which the plurality of second thermoelectric members are deposited are in contact with each other,
Wherein the plurality of first thermoelectric members are deposited in a direction from one end to the other end of the first substrate and the plurality of second thermoelectric members are deposited in a direction from one end to the other end of the second substrate,
Wherein the plurality of first thermoelectric members and the plurality of second thermoelectric members are made of a thermoplastic resin,
And one end of the n-th thermoelectric element and the other end of the (n + 1) -th thermoelectric element are connected to each other so as to connect the second thermoelectric element,
The output unit includes:
The first and second thermoelectric members are electrically connected to one end and the other end of the first thermoelectric member and the second thermoelectric member,
Wherein the first substrate and the second substrate are flexible substrates,
The first thermoelectric member of the first substrate is located on the opposite side of the surface on which the first thermoelectric member is deposited or on the side of the second substrate opposite to the side on which the second thermoelectric member is deposited and the polarity of the electric energy output by the output unit is reversed An electrode changeover switch for changing the electrode change; And
And a storage battery electrically connected to all of the heat sources to store the electric energy,
Wherein the output unit is electrically connected to the battery to output the stored electric energy,
And a boost module electrically connected to all of the heat sources to boost the voltage of the electric energy,
Wherein the output unit outputs the electric energy whose voltage is increased,
Wherein the voltage of the electric energy converted by the thermoelectric conversion unit is determined by the following equation.
Equation

(In the above equation,

Is the voltage of the electric energy,

Is a temperature of a point where one end of the plurality of first thermoelectric members and one end of the plurality of second thermoelectric members are in contact with each other,

Is a temperature of a point where the other end of the plurality of first thermoelectric members and the other end of the plurality of second thermoelectric members are in contact with each other,

Is a bending coefficient of a thermocouple between the first thermoelectric member and the second thermoelectric member,

Is the number of thermocouples of the first and second thermoelectric elements. delete The method according to claim 1,
Wherein the thermocouple between the first thermoelectric member and the second thermoelectric member is a copper-constantan thermocouple or a Bi ₂ Te ₃ -Sb ₂ Te ₃ thermocouple. The method according to claim 1,
The first substrate and the second substrate have a rectangular shape of 8.6 cm in width and 5.35 cm in length or 8.6 cm in width and 5.2 cm in length, Or a business card standard, and has a width of 9 cm and a length of 5 cm. delete delete delete The method according to claim 1,
And an extension line electrically connected to the output unit and extending an end of the output unit. The method according to claim 1,
And the end of the output portion is an output terminal of Micro-USB, Mini USB, or Lightning 8-pin. The method according to claim 1,
Wherein the thermoelectric part is waterproofed so that moisture does not penetrate into the thermoelectric part. delete delete delete delete 10. A charging system including a thermoelectric charging device according to any one of claims 1, 3, 4, and 8 to 10 and a portable terminal supplied with electric energy by the thermoelectric charging device,
And the portable terminal includes a voltage-boosting module for voltage-boosting the voltage of the electric energy. 16. The method of claim 15,
Wherein the portable terminal includes an application for receiving an input from a user and controlling an operation of the booster module. A card comprising a credit card, a check card and a transportation card,
A card according to any of the preceding claims, characterized in that the thermoelectric charging device according to any one of claims 1 to 3, 4, and 8 to 10 is combined.

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