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KR200416894Y1 - Heat rod structure of car preheater - Google Patents

Heat rod structure of car preheater Download PDF

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Publication number
KR200416894Y1
KR200416894Y1 KR2020060003832U KR20060003832U KR200416894Y1 KR 200416894 Y1 KR200416894 Y1 KR 200416894Y1 KR 2020060003832 U KR2020060003832 U KR 2020060003832U KR 20060003832 U KR20060003832 U KR 20060003832U KR 200416894 Y1 KR200416894 Y1 KR 200416894Y1
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South Korea
Prior art keywords
rod
heat
circular
terminal
electric power
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Korean (ko)
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심승규
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동아전기부품 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • B60H1/2225—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters arrangements of electric heaters for heating air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F24H3/0429—For vehicles
    • F24H3/0441—Interfaces between the electrodes of a resistive heating element and the power supply means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
    • F24H9/1863—Arrangement or mounting of electric heating means
    • F24H9/1872—PTC
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/141—Conductive ceramics, e.g. metal oxides, metal carbides, barium titanate, ferrites, zirconia, vitrous compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H2001/2268—Constructional features
    • B60H2001/2271—Heat exchangers, burners, ignition devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017—Manufacturing methods or apparatus for heaters

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Direct Air Heating By Heater Or Combustion Gas (AREA)

Abstract

본 고안은 자동차용 프리 히터의 히트로드 구조에 관한 것으로 길이를 가지는 로드형상으로 그 내부가 길이방향으로 비어있는 로드하우징(10)과, 이 로드하우징(10) 내부를 관통하여 일단이 외부로 일정길이만큼 돌출되도록 결합하고 전기전원부와 연결되어 전기전원을 공급하는 터미널(20)과, 로드하우징(10)의 내부로 상기 터미널(20) 상에 장착되어 터미널(20)로 공급되는 전기전원에 의해 발열하는 발열체(30)를 포함한 자동차용 프리 히터의 히트로드 구조에서, 상기 로드하우징(10)을 그 단면이 원형으로 형성된 원형로드(11)로 형성하여 방열핀부재(2)와의 결합을 용이하게 할 수 있도록 한것이다.The present invention relates to a heat rod structure of an automobile pre-heater, and has a rod shape having a length, the inside of which is empty in the longitudinal direction, and through the inside of the rod housing 10, one end of which is fixed to the outside. The terminal 20 is coupled to the protruding length and connected to the electric power supply unit to supply electric power, and the electric power is mounted on the terminal 20 into the load housing 10 and supplied to the terminal 20. In the heat rod structure of the automotive pre-heater including a heat generating element 30 to generate heat, the rod housing 10 is formed of a circular rod 11 having a circular cross section to facilitate coupling with the heat dissipation fin member 2. It is to be possible.

또한 히트로드(1)가 방열핀부재(2)와 결합한 상태에서 그 접촉면적이 증대되어 히트로드(1)에서 발생한 열을 방열핀부재(2)로 손실없이 효율적으로 전달할 수 있는 것이다.In addition, the contact area is increased in the state in which the heat rod 1 is coupled with the heat dissipation fin member 2, so that heat generated from the heat rod 1 can be efficiently transmitted to the heat dissipation fin member 2 without loss.

따라서 프리히터 제조 시 작업편의성을 증대시킬 수 있음은 물론, 작동 시 열효율이 증대되어 프리히터의 성능을 향상시킬 수 있도록 하는 효과가 있는 것이다.Therefore, it is possible to increase the convenience of the work during manufacturing of the preheater, as well as to increase the thermal efficiency during operation, thereby improving the performance of the preheater.

Description

자동차용 프리 히터의 히트로드 구조{Heat Rod Structure of Pre-Heater for Vehicle}Heat Rod Structure of Pre-Heater for Vehicle

도 1은 본 고안의 형상을 도시한 사시도1 is a perspective view showing the shape of the present invention

도 2는 본 고안의 단면도2 is a cross-sectional view of the present invention

도 3은 본 고안의 사용상태를 도시한 분해사시도3 is an exploded perspective view showing a state of use of the subject innovation

도 4는 종래의 프리히터의 구성을 도시한 분해사시도Figure 4 is an exploded perspective view showing the configuration of a conventional preheater

도 5는 종래의 히트로드의 구성을 도시한 단면도5 is a cross-sectional view showing the configuration of a conventional heat rod.

*도면 중 주요 부호에 대한 설명** Description of the major symbols in the drawings *

1 : 히트로드 2 : 방열핀부재1 heat rod 2 heat radiation fin member

10 : 로드하우징 11 : 원형로드10: rod housing 11: round rod

12 : 중공부 20 : 터미널12: hollow part 20: terminal

30 : 발열체 31 : PTC소자30: heating element 31: PTC element

본 고안은 자동차용 프리 히터의 히트로드 구조에 관한 것으로 더 상세하게는 히트로드의 형상을 개선하여 방열핀과 결합이 용이하고 열전달면적을 증대시킬 수 있도록 고안된 것이다.The present invention relates to a heat rod structure of a car pre-heater, and more particularly, to improve the shape of the heat rod to be easily coupled with the heat dissipation fin and to increase the heat transfer area.

일반적으로 자동차에는 실내를 난방, 또는 냉방시키기 위한 공기조화장치가 설치되어 통풍계통 및 통풍경로를 통해 자동차 각부분에 냉기 및 난기를 골고루 이송시킨다.Generally, an air conditioner for heating or cooling an interior of a vehicle is installed to evenly transport cold and warm air to each part of the vehicle through a ventilation system and a ventilation path.

즉, 여름철등 실내의 온도를 낮추는 냉방의 경우에는 에어컨을 동작시켜 냉기를 토출시키고, 겨울철등 실내의 온도를 높이는 난방의 경우에는 엔진의 과열 방지를 위해 엔진 내부를 순환하여 가열된 냉각수를 송풍기를 통해 실내로 공급되는 외부공기와 열교환시켜 차량 내의 곳곳에 배치된 토출구를 통해 온기를 공급하도록 한다.In other words, in the case of cooling to lower the indoor temperature in summer, the air conditioner is operated to discharge cold air. In the case of heating to increase the indoor temperature in winter, the coolant heated by circulating the inside of the engine is cooled to prevent the engine from overheating. Heat exchange with the outside air supplied to the room through the outlet to be supplied throughout the vehicle to supply the warmth.

그런데, 엔진과 열교환된 냉각수를 이용하여 실내를 난방하는 것이 효율적으로 바람직하기는 하나, 초기 시동 이후에 엔진이 가열되기까지의 시간이 경과해서야 가열된 냉각수를 이용하여 자동차 실내의 난방이 가능해진다.However, although it is preferable to efficiently heat the room by using the coolant heat exchanged with the engine, it is possible to heat the interior of the vehicle by using the heated coolant only after a time until the engine is heated after the initial start-up.

이러한 문제점을 해결하기 위하여 근래에는 정저항온도계수(正抵抗溫度係數)를 가진 정특성 서미스터(PTC:positive temperature coefficient thermistor, 이하 'PTC소자'라 함)를 사용한 프리 히터가 제안되고 있다.In order to solve this problem, in recent years, a pre-heater using a positive temperature coefficient thermistor (PTC) having a positive resistance temperature coefficient has been proposed.

이 프리히터는 도 4에서 도시한 바와 같이 로드하우징(10) 내에 내부에 발열체(30)인 PTC소자(31)를 내장하고, PTC소자(31)에 전기전원을 공급하는 터미널(20)이 관통되어 결합한 히트로드(1)와, 이 히트로드(1)가 관통되어 결합하여 열을 발산하는 다 수의 방열핀부재(2)를 포함한다.As shown in FIG. 4, the preheater includes a PTC element 31, which is a heating element 30, inside the load housing 10, and passes through a terminal 20 for supplying electric power to the PTC element 31. And a plurality of heat dissipation fin members 2 through which the heat rods 1 are coupled to each other, and the heat rods 1 are coupled to each other to dissipate heat.

이 히트로드(1)는 도 5에서 도시한 바와 같이 사각 형상의 로드하우징(10) 과, 이 로드하우징(10) 내부를 관통하여 결합하여 일단이 외부로 일정길이만큼 돌출되며, 전기전원을 공급하는 터미널(20)과, 이 터미널(20) 상에 장착되고 로드하우징(10)의 내측면에 접하는 PTC소자(31)을 포함한다.As shown in FIG. 5, the heat rod 1 is coupled with the rod housing 10 having a rectangular shape and penetrates through the inside of the rod housing 10 so that one end thereof protrudes to the outside by a predetermined length and supplies electric power. And a PTC element 31 mounted on the terminal 20 and in contact with the inner surface of the rod housing 10.

그리고 PCT소자(30)가 장착된 터미널(20)의 반대측 면에 절연재로 형성된 절연판(40)이 장착된다.An insulating plate 40 formed of an insulating material is mounted on the opposite side of the terminal 20 on which the PCT element 30 is mounted.

이 히트로드(1)는 사각결합구멍(2a)이 뚫린 방열핀부재(2)에 억지 끼움으로 결합되어, 접촉된 면을 통해 PTC소자(31)에서 발열된 열을 방열핀부재(2)로 전달하는 것이다.The heat rod 1 is forcibly fitted to the heat dissipation fin member 2 through which the square coupling hole 2a is drilled to transfer heat generated by the PTC element 31 to the heat dissipation fin member 2 through the contacted surface. will be.

즉, 전기전원이 PTC소자(31)로 공급되면 PTC소자(31)에서 열이 발생하고, 이 발생된 열은 방열핀부재(2)로 전달되어 외부공기를 가열하게 되는 것이다.That is, when electric power is supplied to the PTC element 31, heat is generated from the PTC element 31, and the generated heat is transferred to the heat dissipation fin member 2 to heat external air.

그리고 가열된 공기는 통풍계통 및 통풍경로를 통해 차량 내부로 공급되어 엔진이 가열되기 전까지 실내 온도를 높이게 되는 것이다.And the heated air is supplied into the vehicle through the ventilation system and the ventilation path to increase the room temperature before the engine is heated.

그러나 상기한 종래의 히트로드는 사각형으로 형성되어 방열핀부재의 사각결합구멍에 억지끼움으로 결합하는데 각진 모서리부분으로 인해 그 결합이 용이하지 못한 문제점이 있었던 것이다.However, the conventional heat rod has a problem that the coupling is not easily formed due to the angled corner portion formed by the rectangular shape to be coupled to the square coupling hole of the heat radiating fin member.

또한 히트로드가 방열핀부재에 결합한 후 그 모서리부분에서 완전히 밀착되지 못하고 간격이 발생하고, 이로 인해 히트로드에서 방열핀부재로 전달되는 열효율이 저하되는 문제점이 있었던 것이다.In addition, after the heat rod is coupled to the heat radiating fin member, the gap is not completely contacted at its corners, which causes a problem that the thermal efficiency transmitted from the heat rod to the heat radiating fin member is lowered.

사각형상의 히트로드는 로드하우징의 내부에서 사각패널로 형성된 PTC소자의 일면과 접촉하여 그 열을 전달받으므로 자체 발열량이 부족한 폐단이 있었던 것이다.Since the rectangular heat rod contacts the one surface of the PTC element formed of the square panel inside the rod housing and receives the heat, there is a closed end of the self-heating amount.

본 고안의 목적은 히트로드의 형상을 원으로 형성하여 방열핀부재와의 결합을 용이하게 하고 결합 시 방열핀부재와의 접촉면적이 증대되어 방열핀부재로 보다 많은 열을 전달시키도록 하는 자동차용 프리 히터의 히트로드 구조를 제공하는 데 있다.An object of the present invention is to form a shape of the heat rod in a circle to facilitate the coupling with the heat dissipation fin member, and the contact area with the heat dissipation fin member at the time of coupling increases the heat of the pre-heater for the automobile to transmit more heat To provide a heat rod structure.

이러한 본 고안의 목적은 길이를 가지는 로드형상으로 그 내부가 길이방향으로 비어있는 로드하우징과, 이 로드하우징 내부를 관통하여 일단이 외부로 일정길이만큼 돌출되도록 결합하고 전기전원부와 연결되어 전기전원을 공급하는 터미널과, 로드하우징의 내부로 상기 터미널 상에 장착되어 터미널로 공급되는 전기전원에 의해 발열하는 발열체를 포함한 자동차용 프리 히터의 히트로드 구조에 있어서, 상기 로드하우징은 그 단면이 원형으로 형성된 원형로드로 형성함으로써 달성된다.The purpose of the present invention is a rod shape having a length having a length, the inside of which is empty in the longitudinal direction, and through the inside of the rod housing coupled to one end to protrude a certain length to the outside and is connected to the electrical power source is connected to the electrical power source In the heat rod structure of a pre-heater for an automobile including a terminal for supplying and a heating element that is mounted on the terminal inside the rod housing and generates heat by an electric power supplied to the terminal, the rod housing has a circular cross section. It is achieved by forming into a circular rod.

즉, 상기 로드하우징이 원형로드로 형성됨으로써 히트로드가 결합하는 방열핀부재의 결합구멍도 이에 대응되는 원형으로 형성되어 결합 시 걸리는 부분 없이 용이하게 결합하는 것이다.That is, since the rod housing is formed as a circular rod, the coupling hole of the heat dissipation fin member to which the heat rod is coupled is also formed in a corresponding circular shape and is easily coupled without a portion to be caught during the coupling.

본 고안의 바람직한 실시 예를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 고안의 형상을 도시한 사시도이고 도 2는 본 고안의 단면도로서, 히트로드의 로드하우징이 원형로드로 형성되고, 그 내부에 반원형상의 PTC소자가 장착되는 것을 나타내고 있다.1 is a perspective view showing the shape of the present invention, and FIG. 2 is a cross-sectional view of the present invention, in which a rod housing of a heat rod is formed of a circular rod, and a semicircular PTC element is mounted therein.

도 3은 본 고안의 사용상태를 도시한 분해사시도로서, 본 고안인 히트로드가 다수의 방열핀부재에 결합하는 것을 나타내고 있다.3 is an exploded perspective view showing a use state of the present invention, showing that the heat rod of the present invention is coupled to a plurality of heat radiation fin members.

이하, 도 1 내지 도 2에서 도시한 바와 같이 본 고안인 히트로드(1)의 로드하우징(10)은 소정의 길이를 가지고 그 단면이 원형으로 형성된 원형로드(11)로 이루어진다.Hereinafter, as shown in FIGS. 1 and 2, the rod housing 10 of the heat rod 1 of the present invention includes a circular rod 11 having a predetermined length and having a circular cross section.

이 원형로드(11)는 열전도율과 전도성이 우수한 금속으로 제조되며, 도시하지는 않았지만 전기전원부와 연결된 전원터미널로 접촉되어 전기전원부로부터 제 1 전극을 인가받는다.The circular rod 11 is made of a metal having excellent thermal conductivity and conductivity. Although not shown, the circular rod 11 is contacted with a power terminal connected to an electric power supply to receive a first electrode from the electric power supply.

원형로드(11)는 소정의 두께를 가지는 튜브형상으로 형성되어 그 내부에 길이방향으로 관통된 중공부(12)가 형성된다. The circular rod 11 is formed in a tube shape having a predetermined thickness, and the hollow portion 12 penetrated in the longitudinal direction is formed therein.

또 상기 원형로드(11)는 하나의 몸체를 가지도록 형성할 수도 있으며, 반원형상을 가지는 상, 하반원형하우징으로 형성하여 이 상, 하반원형하우징을 결합함으로써 형성되도록 할 수도 있다.In addition, the circular rod 11 may be formed to have one body, and may be formed by combining the upper and lower semi-circular housings by forming the upper and lower semi-circular housings having a semi-circular shape.

이 중공부(12)는 원형로드(11) 전체직경보다 약간 작은 직경을 가지는 원형공간부로써 그 내부로 발열체(30)와 터미널(20)이 결합하여 내장된다.The hollow part 12 is a circular space part having a diameter slightly smaller than the total diameter of the circular rod 11, and the heating element 30 and the terminal 20 are combined therein.

또 원형로드(11)에는 중공부(12)를 관통하여 터미널(20)이 결합되며, 이 터미널(20)은 그 길이가 원형로드(11)보다 길고, 소정의 폭과 두께를 가지는 판 형상으로 형성되어 원형로드(11)에 결합 시 그 단부가 원형로드(11)의 일단으로 돌출된다.In addition, the terminal rod 20 is coupled to the circular rod 11 through the hollow portion 12, and the terminal 20 is longer than the circular rod 11 and has a plate shape having a predetermined width and thickness. When formed and coupled to the circular rod 11, the end thereof protrudes to one end of the circular rod 11.

상기 터미널(20)은 전도성이 우수한 금속, 합금재질로 제조되며 돌출된 단부가 전기전원부로 연결되어 전기전원부로부터 제 2 전극을 인가받는다.The terminal 20 is made of metal, alloy material having excellent conductivity, and the protruding end is connected to the electric power supply to receive the second electrode from the electric power supply.

그리고 이 터미널(20)에는 발열체(30)가 안착되며, 이 발열체(30)로 PTC(PTC:positive temperature coefficient thermistor)소자(31)를 사용한다.A heating element 30 is mounted on the terminal 20, and a PTC (positive temperature coefficient thermistor) element 31 is used as the heating element 30.

이 PTC소자(31)는 정온특성을 갖는 세라믹 발열체로서, PTC소자(31)의 온도가 특정온도에 도달하였을시 소정의 저항값이 급격히 증가하여 주울열이 발생하므로 소자의 온도가 증가하고, 열발생으로 인해 소자의 온도가 상승하여 일정온도 이하에 도달하면 소자가 큰 부하로 작용하게 되므로 전류가 크게 감소되어 온도가 다시 감소하게 된다. The PTC element 31 is a ceramic heating element having a constant temperature characteristic. When the temperature of the PTC element 31 reaches a specific temperature, a predetermined resistance value is rapidly increased and Joule heat is generated. When the temperature of the device rises due to the occurrence and reaches a certain temperature or less, the device acts as a large load, so the current is greatly reduced and the temperature decreases again.

상기에서와 같이 PTC소자(31)의 온도가 감소하면 저항값이 다시 감소하고 주울열의 발생이 다시 증가하게 되는데 이와 같은 과정은 아주 짧은 시간내에서 반복되어 PTC소자(31)는 거의 일정한 온도를 유지하는 것이다. As described above, when the temperature of the PTC element 31 decreases, the resistance value decreases again, and the generation of Joule heat increases again. This process is repeated in a very short time, so that the PTC element 31 maintains a substantially constant temperature. It is.

이 PTC소자(31)는 일면이 평면으로 형성된 안착면(33)으로 이루어져 터미널(20) 상에 안착되고 이 안착면(33)의 상부로 원형로드(11)의 내주면에 밀착되는 반원부(32)가 형성된 반원형몸체를 가진다.The PTC element 31 is composed of a seating surface 33 having one surface formed in a flat surface, and is seated on the terminal 20, and the semicircular portion 32 which is in close contact with the inner circumferential surface of the circular rod 11 on the seating surface 33. ) Has a semi-circular body formed.

이 PTC소자(31)는 터미널(20)의 상, 하부에 각각 안착면(33)으로 안착되고, 반원부(32)로 원형로드(11)의 내주면에 밀착되도록 원형로드(11) 내부에 위치한다.The PTC element 31 is positioned inside the circular rod 11 so as to be seated on the upper and lower portions of the terminal 20 as a seating surface 33 and in close contact with the inner circumferential surface of the circular rod 11 by the semicircular portion 32. do.

이 PTC소자(31)는 도시하지는 않았지만 상기 원형로드(11)의 중공부(12)와 대응되는 원형단면으로 형성하고, 그 몸체 중앙에 터미널(30)을 관통하여 결합할 수 있는 터미널결합구멍을 뚫어 형성할 수 있다.Although not shown, the PTC element 31 is formed in a circular cross section corresponding to the hollow portion 12 of the circular rod 11, and has a terminal coupling hole for coupling through the terminal 30 in the center of the body. Can be formed through.

PTC소자(31)는 원하는 발열용량에 맞추어 복수로 다 수개를 설치되며, 터미널(20)을 중심으로 상, 하부면에 각각 안착되어 전체적으로 원형을 이뤄 원형로드(11)의 내주면 전체에 걸쳐 밀착되게 된다.A plurality of PTC elements 31 are installed in accordance with the desired heat generating capacity, and the plurality of PTC elements 31 are seated on the upper and lower surfaces of the terminal 20 to form a circular shape so as to be in close contact with the entire inner circumferential surface of the circular rod 11. do.

상기 PTC소자(31)는 원형로드(11)로부터 제 1 전극을 인가받고, 터미널(20)로부터 제 2 전극을 인가받아 전류가 발생되고, 발생된 전류의 저항에 의해 발열되는 것이다.The PTC device 31 receives the first electrode from the circular rod 11, receives the second electrode from the terminal 20, generates a current, and generates heat by the resistance of the generated current.

그리고 상기 원형로드(11)는 그 내부로 상기 PTC소자(31)가 다 수개 장착된 터미널(20)이 관통되어 결합한 후 양 단부에 각각 고정패드(50)를 결합시켜 PTC소자(31)의 이탈을 방지하고 터미널(20)의 위치를 견고히 고정하도록 한다.In addition, the circular rod 11 has a plurality of PTC devices 31 mounted therein, through which a terminal 20 mounted therethrough is coupled to each other, and then the fixing pads 50 are coupled to both ends thereof, thereby disengaging the PTC device 31. To prevent and firmly fix the position of the terminal 20.

이 고정패드(50)는 절연체로 형성되어 각각 다른 전극을 공급받는 원형로드(11)와 터미널(20)을 절연시켜 원형로드(11)로 전기가 통하게 되는 것을 방지하도록 한다.The fixing pad 50 is formed of an insulator to insulate the circular rod 11 and the terminal 20 from which different electrodes are supplied, so as to prevent electricity from being transmitted to the circular rod 11.

이렇게 구성된 히트로드(1)는 도 3에서 도시한 바와 같이 다 수의 방열핀부재(2)에 결합한다.The heat rod 1 configured as described above is coupled to a plurality of heat dissipation fin members 2 as shown in FIG. 3.

이 방열핀부재(2)는 외부공기와의 접촉면적을 증대시키는 것으로 열전도율이 우수한 금속재질로 얇은 두께를 가지는 판형상으로 형성되며, 상기 히트로드(1)가 결합되는 원형결합구멍(2a)이 간격을 두고 다 수개 뚫려져 형성된다.The heat dissipation fin member 2 is formed in a plate shape having a thin thickness with a metal material having excellent thermal conductivity by increasing the contact area with external air, and the circular coupling hole 2a to which the heat rod 1 is coupled is spaced. It is formed by drilling a few pieces.

이 원형결합구멍(2a)은 원형로드(11)에 대응되는 원형상으로 뚫려지며, 원형로드(11)가 억지끼움으로 결합하게 된다.The circular coupling hole 2a is drilled in a circular shape corresponding to the circular rod 11, and the circular rod 11 is coupled by interference fit.

즉, 상기 히트로드(1)는 그 외부 형상을 이루는 로드하우징(10)이 원형로드 (11)로 형성되어 이 히트로드(1)가 결합하는 방열핀부재(2)의 결합구멍(2a)도 원형상으로 형성되게 되는 것이다.That is, the heat rod 1 has a rod housing 10 which forms its outer shape as a circular rod 11, and the coupling hole 2a of the heat dissipation fin member 2 to which the heat rod 1 is coupled is also circular. It will be formed into a shape.

이렇게 원형상의 원형로드(11)는 그 외측에 각진 모서리부분이 없어 방열핀부재(2)의 원형결합구멍(2a)에 결합할 경우 그 억지끼움이 용이한 것이다.Thus, the circular rod 11 of the circular shape has no angled corners on the outside thereof and is easily fitted when combined with the circular coupling hole 2a of the heat dissipation fin member 2.

또 원형로드(11)는 방열핀부재(2)에 형성된 원형상의 원형결합구멍(2a)으로 그 외주면이 완전히 밀착된 상태로 결합할 수 있어 PTC소자(31)에서 발열된 열을 방열핀부재(2)로 더욱 효율적으로 전달할 수 있게 되는 것이다.In addition, the circular rod 11 is a circular circular coupling hole (2a) formed in the heat radiation fin member (2) can be coupled in a state in which the outer peripheral surface is in close contact with the heat radiation fin member (2) heat generated from the PTC element (31) It will be able to deliver more efficiently.

이 방열핀부재(2)로 가열된 공기는 통풍계통 및 통풍경로를 통해 차량 내부로 공급되어 엔진이 가열되기 전까지 실내 온도를 높이게 되는 것이다.The air heated by the heat dissipation fin member 2 is supplied into the vehicle through the ventilation system and the ventilation path to increase the room temperature until the engine is heated.

상기한 본 고안의 구성에 의하면, 프리히터에서 열을 발생시키는 히트로드가 원형로드로 형성되어 방열핀부재와의 결합을 용이하게 할 수 있는 것이다.According to the configuration of the present invention, the heat rod for generating heat in the pre-heater is formed of a circular rod can facilitate the coupling with the heat radiation fin member.

또한 히트로드가 방열핀부재와 결합한 상태에서 그 접촉면적이 증대되어 히트로드에서 발생한 열을 방열핀부재로 손실없이 효율적으로 전달할 수 있는 것이다.In addition, the contact area is increased in the state in which the heat rod is combined with the heat dissipation fin member, so that heat generated from the heat rod can be efficiently transferred to the heat dissipation fin member without loss.

따라서 프리히터 제조 시 작업편의성을 증대시킬 수 있음은 물론, 작동 시 열효율이 증대되어 프리히터의 성능을 향상시킬 수 있도록 하는 효과가 있는 것이다.Therefore, it is possible to increase the convenience of the work during manufacturing of the preheater, as well as to increase the thermal efficiency during operation, thereby improving the performance of the preheater.

Claims (2)

로드형상으로 그 내부가 길이방향으로 비어있는 로드하우징(10)과, 이 로드하우징(10) 내부를 관통하여 일단이 외부로 일정길이만큼 돌출되도록 결합하고 전기전원부와 연결되어 전기전원을 공급하는 터미널(20)과, 로드하우징(10)의 내부로 상기 터미널(20) 상에 장착되어 터미널(20)로 공급되는 전기전원에 의해 발열하는 발열체(30)를 포함한 자동차용 프리 히터의 히트로드 구조에 있어서,The rod housing 10 having a rod shape, the inside of which is empty in the longitudinal direction, and a terminal that penetrates through the inside of the rod housing 10 so that one end protrudes to the outside by a predetermined length and is connected to an electric power supply to supply electric power. And a heat load structure of an automobile pre-heater including a heating element 30 mounted on the terminal 20 inside the rod housing 10 and generating heat by an electric power supplied to the terminal 20. In 상기 로드하우징(10)은 그 단면이 원형으로 형성된 원형로드(11)로 형성하는 것을 특징으로 하는 자동차용 프리 히터의 히트로드 구조.The rod housing 10 is a heat rod structure of a pre-heater for a vehicle, characterized in that formed in a circular rod (11) having a circular cross section. 청구항 1에 있어서, The method according to claim 1, 상기 발열체(30)는 일면이 평면으로 형성된 안착면(33)으로 이루어져 터미널(20) 상에 안착되고 이 안착면(33)의 상부로 원형로드(11)의 내주면에 밀착되는 반원부(32)가 형성된 반원형몸체를 가져 상기 원형로드(11)의 내부로 장착되는 것을 특징으로 하는 자동차용 프리 히터의 히트로드 구조.The heating element 30 is composed of a seating surface 33 having one surface formed in a flat surface is mounted on the terminal 20 and the semi-circular portion 32 in close contact with the inner peripheral surface of the circular rod 11 to the top of the seating surface 33 Heat rod structure of the pre-heater for cars, characterized in that the semi-circular body is formed is mounted to the inside of the circular rod (11).
KR2020060003832U 2006-02-10 2006-02-10 Heat rod structure of car preheater Expired - Lifetime KR200416894Y1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140096685A (en) * 2013-01-29 2014-08-06 한라비스테온공조 주식회사 A ptc heater
US10207568B2 (en) 2013-01-29 2019-02-19 Hanon Systems Heater for motor vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140096685A (en) * 2013-01-29 2014-08-06 한라비스테온공조 주식회사 A ptc heater
KR101658171B1 (en) * 2013-01-29 2016-09-20 한온시스템 주식회사 A ptc heater
US10207568B2 (en) 2013-01-29 2019-02-19 Hanon Systems Heater for motor vehicle

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