WO2023113189A1 - Générateur thermoélectrique portable pour batterie d'écouteur sans fil - Google Patents

Générateur thermoélectrique portable pour batterie d'écouteur sans fil Download PDF

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Publication number
WO2023113189A1
WO2023113189A1 PCT/KR2022/015783 KR2022015783W WO2023113189A1 WO 2023113189 A1 WO2023113189 A1 WO 2023113189A1 KR 2022015783 W KR2022015783 W KR 2022015783W WO 2023113189 A1 WO2023113189 A1 WO 2023113189A1
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WIPO (PCT)
Prior art keywords
type semiconductor
battery
conductive plate
thermoelectric generator
temperature
Prior art date
Application number
PCT/KR2022/015783
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English (en)
Korean (ko)
Inventor
천원기
이개명
아흐메드라하트
Original Assignee
제주대학교 산학협력단
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Publication of WO2023113189A1 publication Critical patent/WO2023113189A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
    • H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
    • H10N10/17—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the structure or configuration of the cell or thermocouple forming the device
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
    • H10N10/80—Constructional details
    • H10N10/81—Structural details of the junction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • thermoelectric generator for a wireless earphone battery, characterized in that the convenience of use is increased by enabling the use time of the wireless earphone to be extended.
  • wireless earphones are formed to make voice calls or enjoy music while performing short-range wireless communication through Bluetooth with electronic devices such as mobile phones (smartphones) or sound devices.
  • the Bluetooth module receives driving power from a built-in battery, and when the battery is discharged during use, it is recharged through a separate adapter or charging jack (or charger).
  • the charging device (charger) dedicated to wireless earphones is a type of case holder that allows the battery to be charged while storing the wireless earphones. formed to be charged.
  • the battery of the wireless earphone is manufactured in a smaller size than the battery of the electronic device in order to improve portability.
  • the time that can drive the main body using the battery of an electronic device is about 30 hours, whereas the time that can drive the main body with the battery of the Bluetooth wireless earphone is about 10 hours.
  • the present invention is to solve the above problems, and the technical gist of the present invention is a TEG (Thermoelectric Generator) power generation device, in which a set of N-type and P-type semiconductor legs and a conductor ring pad made of metal form an integrated thermoelectric generator.
  • the thermoelectric generator is installed in a wireless earphone as a kind of power ring, and its purpose is to improve convenience of use by prolonging battery use time.
  • the present invention causes a current (voltage) to be generated when electrons move (from a place with a high temperature to a place with a low temperature) due to a difference between the user's body temperature (the surface temperature that touches the ear) and the temperature in the air,
  • the purpose of this is to provide that the use time of the wireless earphone can be extended (use convenience increase) by assisting the charging of the battery with the generated power.
  • the present invention provides a semiconductor leg set 100 provided with a plurality of N-type semiconductor legs 110 and P-type semiconductor legs 120;
  • the first conductive plate 210 made of metal is brought into contact with both ends of the opening in the longitudinal direction of the semiconductor leg set, and the second conductive plate 220 made of metal is applied to the outer surface of the first conductive plate 210 ( a conductor ring pad 200 that allows charge_current to move according to the difference between body temperature and air temperature;
  • a power storage circuit 300 electrically connected to one end of the conductor ring pad and the battery to supply current to the battery; made up of
  • the N-type semiconductor legs 110 and the P-type semiconductor legs 120 are arranged to cross each other in the circumferential direction (a P-type semiconductor leg 120 is placed between each N-type semiconductor leg 110). are inserted intermittently), but when the N-type semiconductor leg 110 and the P-type semiconductor leg 120 are cross-arranged, the appearance of any one of a cylindrical shape, a square cylinder shape, a cube shape, an elliptical shape or a polygonal shape is formed, and the cross arrangement It is formed to provide a connection passage when electrons move while doing so.
  • the first conductive plate 210 of the conductor ring pad 200 is made of copper or an equivalent material (material)
  • the second conductive plate 220 is made of aluminum or an equivalent material (material).
  • the surface area of the secondary conductive plate 220 is at least 10% larger than that of the primary conductive plate 210 so that the contact area with the user's skin or the atmosphere is expanded.
  • the present invention is formed to be built into a wireless earphone as a kind of power ring type, and the movement of electrons (from high temperature to low temperature) due to the difference between the user's body temperature (the surface temperature that touches the ear) and the air temperature When movement) occurs, current (voltage) flows, which has the effect of extending the use time of the wireless earphone by allowing the generated power to assist in charging the battery.
  • thermoelectric generator TMG
  • thermoelectric generator (TEG) thermoelectric generator
  • thermoelectric generator (TEG) thermoelectric generator
  • thermoelectric generator TMG
  • battery 5 is an exemplary view showing the configuration of an electrical connection circuit between a thermoelectric generator (TEG) and a battery according to the present invention
  • thermoelectric generator (TEG) thermoelectric generator
  • the best embodiment of the present invention is a semiconductor leg set 100 provided with a plurality of N-type semiconductor legs 110 and P-type semiconductor legs 120;
  • the first conductive plate 210 made of metal is brought into contact with both ends of the opening in the longitudinal direction of the semiconductor leg set, and the second conductive plate 220 made of metal is applied to the outer surface of the first conductive plate 210 ( a conductor ring pad 200 that allows charge_current to move according to the difference between body temperature and air temperature;
  • a power storage circuit 300 electrically connected to one end of the conductor ring pad and the battery to supply current to the battery; made up of
  • the present invention is largely composed of a semiconductor leg set 100 , a conductor ring pad 200 and a power storage circuit 300 .
  • the semiconductor leg set 100 includes a plurality of N-type semiconductor legs 110 and P-type semiconductor legs 120 .
  • the N-type semiconductor legs 110 and the P-type semiconductor legs 120 are alternately arranged along the circumferential direction (a P-type semiconductor leg 120 is placed between each N-type semiconductor leg 110). is formed to be inserted in the middle).
  • the electrons It is formed to provide a connection passage when moving.
  • the N-type semiconductor leg 110 and the P-type semiconductor leg 120 are shown as being provided as a pair of ten, as shown in FIGS. 1 to 2, but have a fine manufacturing structure (width diameter or length interval). 0.5 to 5 mm), it is formed so that it can be cross-arranged into a plurality of pillars with excellent thermal response.
  • the conductor ring pad 200 allows the first conductive plate 210 made of metal to contact both ends of the longitudinal opening of the semiconductor leg set, and the outer surface of the first conductive plate 210 is made of a metal material.
  • the secondary conductive plate 220 is formed to be energized (charge_current transfer according to the difference between body temperature and ambient temperature).
  • the first conductive plate 210 of the conductor ring pad 200 is made of copper or an equivalent material (material), and the second conductive plate 220 is made of aluminum or an equivalent material (material). It is desirable to make it possible.
  • the primary conductive plate in contact with the user's skin, and the wider the area, the higher the heat absorption efficiency is secured.
  • a gradient shape is preferable, and it is particularly preferable to use aluminum having a high thermal conductivity and a material equivalent or superior thereto.
  • the material of the primary conduction plate is set to a material that has a good touch so as not to feel repulsive to the skin.
  • the surface area of the secondary conductive plate 220 is larger than that of the primary conductive plate 210 by at least 10%, so that the contact area with the user's skin or the atmosphere is expanded. This is to increase the thermal response area.
  • the power storage circuit 300 is electrically connected to one end of the conductor ring pad and the battery to supply current to the battery.
  • thermoelectric effect when a semiconductor and a metal are bonded, the thermoelectric effect is increased. In this complex structure, more electrons move smoothly due to the temperature difference, and the generated voltage supplementally charges the battery.
  • Wireless earphones require a portable power source, but currently a small battery is built into the earphone itself, which is used until the stored energy is completely consumed.
  • thermoelectric generator is provided with a combination of N-type and P-type semiconductor leg sets and a metal conductor ring pad.
  • thermoelectric generator is built into one side of the wireless earphone, and when worn on the ear, the first conductive plate absorbs heat, and the temperature in the air corresponding to the second conductive plate on the opposite side and its deviation cause charge transfer. If so, the current generated by the principle is formed so that it can be used as an auxiliary power source for the battery. That is, a thermoelectric generator (TEG) is used to convert heat into electrical energy.
  • TOG thermoelectric generator
  • the N-type semiconductor leg 110 and the P-type semiconductor leg 120 that are thermally connected in parallel and electrically are electrically charged at the atomic level when a temperature difference occurs. As it diffuses from the hot side to the cold side of the current, it creates a flow.
  • NSs are connected in parallel to both ends of the N-type semiconductor leg 110 and the P-type semiconductor leg 120 .
  • the thickness of the alumina substrate is 0.25 mm, and copper is used as an electrode connected to the P-type semiconductor leg.
  • the N-type semiconductor legs connected in series are 0.25 mm equal to the thickness of the copper electrode.
  • each of the N-type semiconductor leg 110 and the P-type semiconductor leg 120 has a length of 8 mm and a cross section of 1.73 mm2.
  • FIGS. 6 to 8 are temperature simulations of the TEG
  • FIG. 6 is deviation data from the temperature in the air when the TEG is worn on the user's ear.
  • the temperature of the side of the first conduction plate that touches the ear is 305.15K
  • the surface temperature of the cold side is 297.65.K due to the temperature difference between the hot side and the low side.
  • FIG. 7 shows the voltage change of the thermoelectric generator of the present invention, and the two terminals at different temperature gradients show voltage profiles at high and low temperatures.
  • the TEG has an open circuit voltage of 22.7mV. The voltage generation due to this temperature change is confirmed to keep the hot side temperature constant (at 305.15K).
  • the cold side temperature is lowered to 297.65K, and at this time, it is confirmed that 37mV is generated at a temperature difference of 7.5K.
  • the TEG parameter shows a change in resistance and internal resistance of the power source when the power supply to the external load is consistent.
  • FIG. 10 relates to (a) the temperature profile (b) the generated voltage, and it is confirmed that the electron flow gradually decreases through the outside because the resistance to the external load is higher.
  • the present invention is a TEG (Thermoelectric Generator) power generation device, in which a set of N-type and P-type semiconductor legs and a conductor ring pad made of metal form an integral thermoelectric generator, but the thermoelectric generator is a type of power ring and is a wireless earphone To be mounted on the bar, which promotes the extension of the battery use time and improves the convenience of use, which is industrially usable.
  • TEG Thermoelectric Generator

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

La présente invention concerne un générateur thermoélectrique portable pour une batterie d'un écouteur sans fil. Le point technique essentiel de la présente invention est caractérisé en ce qu'un ensemble de pattes semi-conductrices incluant un type N et un type P combinés et un plot annulaire conducteur comprenant un matériau métallique sont intégrés pour former un générateur thermoélectrique, et le générateur thermoélectrique, correspondant à un type d'anneau de puissance, est monté sur un écouteur sans fil. Le générateur thermoélectrique aide une batterie à se charger en un courant généré pendant le mouvement d'électrons (mouvement d'une position ayant une température élevée à une position ayant une basse température) en raison d'une différence entre la température du corps d'un utilisateur (température de la surface venant en contact avec l'oreille lorsqu'il est inséré dans l'oreille) et la température de l'air, prolongeant ainsi la durée de fonctionnement de l'écouteur sans fil.
PCT/KR2022/015783 2021-12-13 2022-10-18 Générateur thermoélectrique portable pour batterie d'écouteur sans fil WO2023113189A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2021-0177377 2021-12-13
KR1020210177377A KR102436212B1 (ko) 2021-12-13 2021-12-13 무선 이어폰 배터리용 휴대용 열전 발전기

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WO2023113189A1 true WO2023113189A1 (fr) 2023-06-22

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Publication number Priority date Publication date Assignee Title
KR102436212B1 (ko) * 2021-12-13 2022-08-24 제주대학교 산학협력단 무선 이어폰 배터리용 휴대용 열전 발전기

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050066696A (ko) * 2003-12-27 2005-06-30 삼성전자주식회사 무선이어폰 충전어댑터
KR20070037583A (ko) * 2004-07-01 2007-04-05 아르재 가부시키가이샤 열전 변환 모듈
US20180206024A1 (en) * 2017-01-19 2018-07-19 Tct Mobile Inc. Heat powered earphones
KR20210046345A (ko) * 2019-10-18 2021-04-28 박경현 충전케이스 없이 무선이어폰 충전
KR102436212B1 (ko) * 2021-12-13 2022-08-24 제주대학교 산학협력단 무선 이어폰 배터리용 휴대용 열전 발전기

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102121185B1 (ko) 2019-06-12 2020-06-12 크레신 주식회사 무선 이어폰과 충전 케이스 세트

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050066696A (ko) * 2003-12-27 2005-06-30 삼성전자주식회사 무선이어폰 충전어댑터
KR20070037583A (ko) * 2004-07-01 2007-04-05 아르재 가부시키가이샤 열전 변환 모듈
US20180206024A1 (en) * 2017-01-19 2018-07-19 Tct Mobile Inc. Heat powered earphones
KR20210046345A (ko) * 2019-10-18 2021-04-28 박경현 충전케이스 없이 무선이어폰 충전
KR102436212B1 (ko) * 2021-12-13 2022-08-24 제주대학교 산학협력단 무선 이어폰 배터리용 휴대용 열전 발전기

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
AHMED RAHATE; ZEESHAN; MEHMOOD MUHAMMAD UZAIR; MANNAN ABDUL; LEE JAE YOUNG; LIM SANG HOON; CHUN WONGEE: "Design and Performance Analysis of Powering a Wireless Earphone by a Thermoelectric Generator", IEEE ACCESS, IEEE, USA, vol. 9, 24 February 2021 (2021-02-24), USA , pages 54457 - 54465, XP011849568, DOI: 10.1109/ACCESS.2021.3062086 *

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