KR20040025783A - Power supplying device for a vehicle using exhaust heat of an engine - Google Patents

Power supplying device for a vehicle using exhaust heat of an engine Download PDF

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Publication number
KR20040025783A
KR20040025783A KR1020020056382A KR20020056382A KR20040025783A KR 20040025783 A KR20040025783 A KR 20040025783A KR 1020020056382 A KR1020020056382 A KR 1020020056382A KR 20020056382 A KR20020056382 A KR 20020056382A KR 20040025783 A KR20040025783 A KR 20040025783A
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South Korea
Prior art keywords
engine
vehicle
contact point
energy
generated
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KR1020020056382A
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Korean (ko)
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이학준
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현대모비스 주식회사
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Priority to KR1020020056382A priority Critical patent/KR20040025783A/en
Publication of KR20040025783A publication Critical patent/KR20040025783A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • B60R16/0307—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for using generators driven by a machine different from the vehicle motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
    • F02G5/02—Profiting from waste heat of exhaust gases
    • F02G5/04—Profiting from waste heat of exhaust gases in combination with other waste heat from combustion engines
    • 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

Abstract

PURPOSE: A heat energy generated while burning fuel in an engine is used to supply power to an automobile, thereby improving energy efficiency using an engine exhaust heat. CONSTITUTION: A piezoelectric device(10) is provided to generate heat electric power. A first contact point of the piezoelectric device is fixed to a cooling system. A second contact point is fixed to an exhaust manifold(30). A battery member is provided to store electric energy connected to the piezoelectric device. The high temperature exhaust heat is generated from the exhaust manifold, thereby temperature difference is large between the first and second contact point.

Description

엔진 배기열을 이용한 차량전원 공급장치{Power supplying device for a vehicle using exhaust heat of an engine}Power supplying device for a vehicle using exhaust heat of an engine}

본 발명은 엔진 배기열을 이용한 차량전원 공급장치에 관한 것으로, 특히 온도차에 의해 열기전력이 발생되는 열전소자를 이용하여 엔진에서 배출되는 열을 이용하여 차량전원을 발생되도록 하기 위한 차량전원 공급장치에 관한 것이다.The present invention relates to a vehicle power supply using an engine exhaust heat, and more particularly to a vehicle power supply for generating vehicle power by using heat discharged from the engine by using a thermoelectric element generated by the thermoelectric power generated by the temperature difference. will be.

일반적으로 차량은 엔진에 의해 구동되며, 또한 이 엔진은 발전기를 구동하여 발생된 전원을 이용하여 차량의 전장품에 필요한 전력을 공급하고 있다.In general, the vehicle is driven by an engine, and the engine supplies power required for the electrical equipment of the vehicle by using a power generated by driving a generator.

엔진은 화학 연료를 내부에서 연소시켜 여기에서 발생된 열에너지를 운동에너지로 변환하여 기계적인 일을 수행하게 되며, 이때 차량에 구비되는 발전기는 엔진에서 발생된 운동에너지를 이용하여 전기에너지를 발생시키게 된다.The engine burns chemical fuel inside and converts thermal energy generated therein into kinetic energy to perform mechanical work. In this case, the generator provided in the vehicle generates electrical energy using the kinetic energy generated from the engine. .

즉, 차량에 필요한 전기에너지를 화학 연료로부터 얻기 위해서는 엔진에서 연료를 연소하여 열에너지를 운동에너지로 변환하며, 발전기를 통하여 다시 운동에너지를 전기에너지로 변환해야만 하는 과정을 거치게 된다.In other words, in order to obtain the electrical energy required for the vehicle from the chemical fuel, the engine burns the fuel, converts thermal energy into kinetic energy, and undergoes a process of converting kinetic energy into electrical energy again through a generator.

그러나, 이와 같은 과정에서 열역학 제2법칙에 따라 필연적으로 에너지 손실이 발생하게 되며, 에너지 손실이 클수록 전체적인 에너지 효율은 저하되게 된다.In this process, however, energy loss inevitably occurs according to the second law of thermodynamics, and the greater the energy loss, the lower the overall energy efficiency.

이와 같이 차량에서 발생될 수 있는 에너지 손실로는 부품들간의 기계적인 마찰, 소음, 또는 진동 등의 형태를 통하여 에너지 손실이 발생하게 된다.As such energy loss that can occur in a vehicle, energy loss occurs through mechanical friction, noise, or vibration between components.

특히, 엔진에서 연료가 연소되어 열에너지가 운동에너지로 변환되는 과정에서 상당히 큰 열에너지가 배기관을 통해 그냥 외부로 방출되어 상당한 열에너지의 손실이 발생하게 된다.In particular, in the process of burning fuel in the engine and converting the thermal energy into kinetic energy, a considerable amount of thermal energy is simply released to the outside through the exhaust pipe, thereby causing a significant loss of thermal energy.

본 발명은 상기 문제점을 해소하기 위한 것으로, 본 발명의 목적은 엔진에서 연료가 연소되어 발생되는 열에너지를 운동에너지로 변환하는 과정에서 손실되는 열에너지를 이용하여 차량 전장품을 작동하기 위한 전원을 공급할 수 있도록 함으로써, 에너지 효율을 높일 수 있는 엔진 배기열을 이용한 차량전원 공급장치를 제공하고자 한다.The present invention is to solve the above problems, an object of the present invention to supply power for operating the vehicle electrical equipment using the heat energy lost in the process of converting the heat energy generated by the combustion of fuel in the engine to kinetic energy. Thus, to provide a vehicle power supply using the engine exhaust heat that can increase the energy efficiency.

도 1은 본 발명의 차량전원 공급장치의 구성을 보여주는 도면.1 is a view showing the configuration of a vehicle power supply of the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10 : 열전소자20 : 라디에이터10: thermoelectric element 20: radiator

30 : 배기 매니폴드40 : 축전지30 exhaust exhaust manifold 40 storage battery

50 : 전기부하50: electric load

이러한 본 발명의 차량전원 공급장치는 제1접점이 냉각계통에 고정되며, 제2접점이 엔진의 배기 매니폴드에 고정되어 열기전력을 발생시키는 열전소자와; 상기 열전소자와 전기적으로 연결되어 전기에너지를 저장하기 위한 축전수단으로써 달성된다.The vehicle power supply apparatus of the present invention includes a thermoelectric element having a first contact point fixed to the cooling system and a second contact point fixed to an exhaust manifold of the engine to generate thermoelectric power; It is electrically connected with the thermoelectric element and is achieved as a power storage means for storing electrical energy.

도 1은 본 발명의 차량전원 공급장치의 구성을 보여주는 도면이다.1 is a view showing the configuration of a vehicle power supply of the present invention.

본 발명의 실시 예를 첨부 도면을 참고하여 상세히 설명하면 다음과 같다.An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

본 발명의 차량전원 공급장치는 제1접점이 냉각계통에 고정되며, 제2접점이 엔진의 배기 매니폴드(30)에 고정되어 열기전력을 발생시키는 열전소자(10)와; 상기 열전소자와 전기적으로 연결되어 전기에너지를 저장하기 위한 축전수단으로 구성되는 것을 기술상의 특징으로 한다.The vehicle power supply apparatus of the present invention includes a thermoelectric element 10 having a first contact point fixed to the cooling system and a second contact point fixed to the exhaust manifold 30 of the engine to generate thermoelectric power; The technical feature is that the thermoelectric element is electrically connected to the power storage means for storing the electrical energy.

상기 열전소자(10)는 열에너지를 전기에너지로 변환하거나, 또는 전기에너지를 열에너지로 변환할 수 있는 소자로써, 열전변환특성이 우수한 P형과 N형 반도체를 서로 접합시키고 양단에 온도차가 발생하면 열전 효과(Seeback effect)에 의해 열기전력이 발생되며, 또는 이 현상의 역현상으로서 복합재료로 구성된 요소에 직류 전원을 인가하게 되면 전류의 방향에 따라 흡열 또는 발열이 발생하게 된다.The thermoelectric element 10 is a device capable of converting thermal energy into electrical energy or converting electrical energy into thermal energy. If the P-type and N-type semiconductors having excellent thermoelectric conversion characteristics are bonded to each other and a temperature difference occurs at both ends, the thermoelectric The thermoelectric power is generated by the seeback effect, or as a reverse phenomenon, when a direct current power is applied to an element composed of a composite material, endothermic or heat generation occurs depending on the direction of the current.

본 발명에 있어 열전소자(10)는 일측 제1접점이 차량 냉각계통에 접촉되며, 제2접점은 엔진의 배기 매니폴드(30)에 고정되어 온도차이가 크게 발생하도록 함으로써, 열기전력 발생의 효율을 높일 수가 있다.In the present invention, the thermoelectric element 10 has one side of the first contact point in contact with the vehicle cooling system, and the second contact point is fixed to the exhaust manifold 30 of the engine so that a large temperature difference occurs. Can increase.

바람직하게는 차량 냉각계통에 고정되는 상기 제1접점은 차량 라디에이터의 냉각수 배출구 측에 고정될 수가 있다.Preferably, the first contact point fixed to the vehicle cooling system may be fixed to the coolant outlet side of the vehicle radiator.

상기 축전수단은 전기에너지를 충전하기 위한 통상의 축전지(40)로, 상기 열전소자(10)에서 발생된 전기에너지를 저장하게 된다.The power storage means is a conventional storage battery 40 for charging electric energy, and stores the electric energy generated by the thermoelectric element 10.

열전소자(10)에서 발생된 전기에너지는 상기 축전단과 전기적으로 연결되어 축전지(40)에 저장할 수가 있으며, 또는 차량의 각종 전기부하(50)와 연결되어 전원을 공급하도록 할 수가 있다.The electrical energy generated by the thermoelectric element 10 may be electrically connected to the storage terminal and stored in the storage battery 40, or may be connected to various electric loads 50 of the vehicle to supply power.

이와 같이 구성된 본 발명의 차량전원 공급장치의 작용은 다음과 같다.The operation of the vehicle power supply of the present invention configured as described above is as follows.

엔진이 구동되면, 배기 매니폴드(30)로부터 고온의 배기열이 발생하게 되며, 이 배기 매니폴드(30)에 고정된 열전소자(10)의 제2접점과, 냉각수가 순환하는 라디에이터(20)에 고정된 열전소자(10)의 제1접점 사이에는 큰 온도 차이가 발생하게 된다.When the engine is driven, high-temperature exhaust heat is generated from the exhaust manifold 30, and the radiator 20 circulates with the second contact point of the thermoelectric element 10 fixed to the exhaust manifold 30 and with the cooling water circulated. A large temperature difference occurs between the first contacts of the fixed thermoelectric element 10.

이와 같이 열전소자(10)의 제1접점과 제2접점 사이에 온도 차이가 발생함에 따라 열전소자(10)에는 열기전력이 발생하게 되며, 발생된 열기전력은 축전지(40)를 충전하거나, 또는 차량의 각종 전기부하(50)에 전원으로 공급될 수가 있다.As the temperature difference occurs between the first contact point and the second contact point of the thermoelectric element 10, thermoelectric power is generated in the thermoelectric element 10, and the generated thermal power charges the storage battery 40, or Various electric loads 50 of the vehicle can be supplied as power.

이상과 같은 본 발명의 차량전원 공급장치는 차량의 냉각계통과, 엔진의 배기 매니폴드 사이에서 발생되는 온도 차이를 이용하여 열기전력이 발생되는 열전소자를 구비함으로써, 엔진 구동에 의해 배기 매니폴드에서 발생되는 배기열을 이용하여 차량에서 필요로 하는 전원을 공급할 수가 있으므로 에너지의 효율을 높일 수가 있는 효과가 있는 발명인 것이다.As described above, the vehicle power supply apparatus of the present invention includes a thermoelectric element in which thermoelectric power is generated by using a temperature difference generated between a cooling system of a vehicle and an exhaust manifold of an engine, and thus, the vehicle power supply device is driven by an engine. By using the generated exhaust heat can supply the power required by the vehicle is an invention that can increase the efficiency of energy.

Claims (2)

제1접점이 냉각계통에 고정되며, 제2접점이 엔진의 배기 매니폴드에 고정되어 열기전력을 발생시키는 열전소자와;A thermoelectric element having a first contact point fixed to the cooling system and a second contact point fixed to an exhaust manifold of the engine to generate thermoelectric power; 상기 열전소자와 전기적으로 연결되어 전기에너지를 저장하기 위한 축전수단으로 구성되는 것을 특징으로 하는 엔진 배기열을 이용한 차량전원 공급장치.Vehicle power supply using the exhaust heat of the engine, characterized in that it is electrically connected to the thermoelectric element is configured as a power storage means for storing electrical energy. 제1항에 있어서, 상기 제1접점은 라디에이터의 냉각수 배출구 측에 고정되는 것을 특징으로 하는 엔진 배기열을 이용한 차량전원 공급장치.The vehicle power supply apparatus according to claim 1, wherein the first contact point is fixed to a coolant outlet side of a radiator.
KR1020020056382A 2002-09-17 2002-09-17 Power supplying device for a vehicle using exhaust heat of an engine KR20040025783A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100869322B1 (en) * 2007-10-01 2008-11-18 임석연 Thermoelectric generation system for waste heat

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0622572A (en) * 1992-06-30 1994-01-28 Aqueous Res:Kk Thermoelectric generation type charger
JP2000018095A (en) * 1998-06-30 2000-01-18 Nissan Motor Co Ltd Exhaust heat power generating set
JP2000286469A (en) * 1999-03-30 2000-10-13 Nissan Motor Co Ltd Thermoelectric power-generating device
JP2000312035A (en) * 1999-04-28 2000-11-07 Kubota Corp Thermoelectric generation system
KR20020037964A (en) * 2000-11-16 2002-05-23 손재익 Thermoelectric Generation System for Automobile Exhaust Heat Recovery

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0622572A (en) * 1992-06-30 1994-01-28 Aqueous Res:Kk Thermoelectric generation type charger
JP2000018095A (en) * 1998-06-30 2000-01-18 Nissan Motor Co Ltd Exhaust heat power generating set
JP2000286469A (en) * 1999-03-30 2000-10-13 Nissan Motor Co Ltd Thermoelectric power-generating device
JP2000312035A (en) * 1999-04-28 2000-11-07 Kubota Corp Thermoelectric generation system
KR20020037964A (en) * 2000-11-16 2002-05-23 손재익 Thermoelectric Generation System for Automobile Exhaust Heat Recovery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100869322B1 (en) * 2007-10-01 2008-11-18 임석연 Thermoelectric generation system for waste heat

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