KR20000014041A - Fuel residue caution sensor of automobile - Google Patents

Fuel residue caution sensor of automobile Download PDF

Info

Publication number
KR20000014041A
KR20000014041A KR1019980033242A KR19980033242A KR20000014041A KR 20000014041 A KR20000014041 A KR 20000014041A KR 1019980033242 A KR1019980033242 A KR 1019980033242A KR 19980033242 A KR19980033242 A KR 19980033242A KR 20000014041 A KR20000014041 A KR 20000014041A
Authority
KR
South Korea
Prior art keywords
thermistor element
fuel
lead frame
sensor
warning sensor
Prior art date
Application number
KR1019980033242A
Other languages
Korean (ko)
Inventor
김두영
이인혁
Original Assignee
밍 루
주식회사 만도
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 밍 루, 주식회사 만도 filed Critical 밍 루
Priority to KR1019980033242A priority Critical patent/KR20000014041A/en
Publication of KR20000014041A publication Critical patent/KR20000014041A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/24—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/0321—Fuel tanks characterised by special sensors, the mounting thereof
    • B60K2015/03217—Fuel level sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2530/00—Input parameters relating to vehicle conditions or values, not covered by groups B60W2510/00 or B60W2520/00
    • B60W2530/209—Fuel quantity remaining in tank

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

PURPOSE: A fuel residue caution sensor of automobile is provided to prevent corrosion of the fuel residue caution sensor for gasoline. CONSTITUTION: A connecting structure of the fuel residue caution sensor is installed inside of a housing with metal material and electrically connected to thermistor element through a lead frame. An electrode is formed on either side of the thermistor element. The lead frame is formed to electrically connect with the thermistor by inserting the thermistor element. The lead frame has a concave portion. An endurance of the fuel residue caution sensor is improved by putting the lead frame between both side of the thermistor element.

Description

자동차의 연료 잔량 경고 센서Fuel level warning sensor of car

본 발명은 자동차의 연료 잔량 경고 센서에 관한 것으로, 더욱 상세하게는 가솔린에 알코올이 혼합된 연료를 사용하는 차량에도 적용할 수 있도록 개선한 연료 잔량 경고 센서에 관한 것이다.The present invention relates to a fuel level warning sensor of an automobile, and more particularly, to a fuel level warning sensor that is improved to be applicable to a vehicle using fuel mixed with alcohol in gasoline.

연료 잔량 경고 센서는 연료 게이지의 전기회로와 병렬로 연결되어 연료가 규정 이하가 되면 센서가 작동하여, 인디케이터 램프를 점등시켜 경고하는 것이다.The fuel level warning sensor is connected in parallel with the electric circuit of the fuel gauge, and when the fuel is below the specified level, the sensor is activated and the indicator lamp is turned on to warn.

센서는 통상적으로 서미스터 소자를 사용하고 있다.The sensor typically uses thermistor elements.

서미스터(NTC)는 외부 열이나 온도에 따라 저항값이 변화하는 소자로서 소자에 전압을 인가하면 자기 발열을 한다. 즉, 연료가 일정수준 이상으로 저장되어 서미스터 소자가 연료에 닿아 있을 때는 방열이 잘되기 때문에 저항치가 높고 램프는 점등하지 않지만, 연료 저장이 일정수준 이하로 내려가 서미스터 소자가 공기중에 들어나면 방열이 잘 안되기 때문에 자기가열에 의해 서미스터 소자의 저항치가 낮아져 램프가 점등한다.Thermistor NTC is a device whose resistance value changes according to external heat or temperature, and generates a self-heating voltage when a voltage is applied to the device. That is, since the fuel is stored above a certain level and the thermistor element is in contact with the fuel, the heat dissipation is good, so the resistance is high and the lamp does not light, but when the thermistor element enters the air, the heat dissipation is good. Because of this, the resistance of the thermistor element is lowered by the self heating, and the lamp is turned on.

이처럼 연료와 공기의 열방산 차이를 이용하여 연료의 잔량을 운전자에게 경고하여 주는 센서로 이용되고 있다.As such, it is used as a sensor to warn the driver of the remaining fuel by using the difference in heat dissipation between fuel and air.

도 1은 종래의 연료 잔량 경고 센서의 구조를 도시한 단면도이며, 도 2는 도1의 A-A 선 단면도로서, 원통형상의 금속재질의 하우징(3) 내부에 서미스터 소자(1)가 리드 프레임(2,2')에 지지되어 내장되어 있다. 일측 리드 프레임(2)은 하우징(3)의 바닥면(4)에 전기적으로 접합되며, 타측 리드 프레임(2')은 하우징(3)의 개방면에 설치되는 절연판(5)에 설치된 터미널(6)과 전기적으로 접합되어 있다.1 is a cross-sectional view illustrating a structure of a conventional fuel level warning sensor, and FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, in which a thermistor element 1 is formed in a cylindrical metal housing 3. 2 ') is supported and embedded. One lead frame 2 is electrically bonded to the bottom surface 4 of the housing 3, and the other lead frame 2 ′ is provided on a terminal 6 installed on the insulating plate 5 installed on the open surface of the housing 3. ) Is electrically connected.

서미스터 소자(1)는 길이를 갖는 직육면체 형상으로 이루어져 있으며, 서미스터 소자(1)의 양측면에는 각각 은(Ag)재질의 전극(7)이 도포되어 있으며, 각각의 전극(7)에는 수직방향으로 소자를 관통하는 구멍(8)이 형성되어 리드 프레임(2,2')의 선단이 삽입된다.The thermistor element 1 has a rectangular parallelepiped shape having a length, and the electrodes 7 made of silver (Ag) are coated on both sides of the thermistor element 1, and each electrode 7 is disposed in a vertical direction. A hole 8 penetrating through is formed so that the leading ends of the lead frames 2, 2 'are inserted.

한편, 리드 프레임(2,2')이 삽입된 전극(7)의 상부에 전극(7)과 리드 프레임(2, 2')의 안정적인 전기적 접속을 위해 전도성 접착제(9)가 도포되어 있다. 전도성 접착제(9)의 재질은 실버 페이스트(Ag paste) 등이 이용되고 있다.On the other hand, a conductive adhesive 9 is applied on the upper part of the electrode 7 into which the lead frames 2 and 2 'are inserted for stable electrical connection between the electrode 7 and the lead frames 2 and 2'. Silver paste or the like is used as the material of the conductive adhesive 9.

한편, 최근들어 배기 가스의 문제가 대두되면서 가스를 적게 내고자 하는 연구가 활발히 진행되고 있으며, 그의 일환으로 자동차의 연료로 가솔린에 알콜을 20% 내외로 첨가한 가솔린 + 알코올(이하 가소올이라 약칭함.)연료가 일부 차종에 적용되고 있다.On the other hand, as the problem of exhaust gas has recently emerged, researches to produce less gas have been actively conducted, and as part of it, gasoline + alcohol (hereinafter referred to as gasool) which adds about 20% of alcohol to gasoline as a fuel for automobiles. Fuel is applied to some models.

그러나 현재 차량에 적용되고 있는 연료 잔량 경고 센서는 서미스터 소자(1)의 전극(7)재료로 이용되고 있는 은(Ag)과 리드 프레임(2, 2')의 안정적인 전기적 접속을 위해 전도성 접착제(9)로 이용되고 있는 실버 페이스트(Ag paste)가 알코올에 부식되는 단점을 가지고 있어 이로 인해 서미스터 소자(1)의 저항값의 변화를 가져와 장시간 사용할 때 경시 변화율을 일으켜 센서의 정확성이 떨어지는 등 가소올 차량에는 부적합한 문제가 있었다.However, the fuel level warning sensor currently applied to a vehicle has a conductive adhesive (9) for stable electrical connection between silver (Ag) and lead frames (2, 2 '), which are used as the electrode (7) material of the thermistor element (1). The silver paste used as) has the disadvantage of corrosive to alcohol, which causes the resistance value of the thermistor element (1) to change, resulting in a change rate over time when used for a long time, resulting in inaccurate sensor accuracy. There was an inadequate problem.

따라서, 본 발명은 이와같은 종래의 문제점을 해결하기 위한 것으로, 리드 프레임과 전극의 접합구조를 전도성 접착제를 사용하지 않고 기계적 압착 구조로 개선하여 가솔린과 알코올을 혼합한 가소올 연료에도 부식되지 않는 가소올용 연료 잔량 경고 센서를 제공하는데 그 목적이 있다.Accordingly, the present invention is to solve such a conventional problem, and improve the joint structure of the lead frame and the electrode to a mechanical crimp structure without using a conductive adhesive, which does not corrode even in gasoline and alcohol mixed gasoline fuel It is an object of the present invention to provide a fuel level warning sensor for all.

이와같은 목적을 실현하기 위한 본 발명은 원통형상의 금속재질의 하우징 내부에 서미스터 소자가 리드 프레임을 매개로 전기적으로 연결된 연료 잔량 경고 센서의 접합구조에 있어서, 상기 서미스터 소자의 대향하는 양측면에 전극을 형성하고, 상기 서미스터 소자를 끼워넣어 상기 전극과 전기적 접속이 이루어지도록 오목부를 갖는 리드 프레임이 상기 서미스터 소자의 양단에 압착되어 형성되므로서 서미스터 소자와 리드 프레임의 접합부가 가솔린과 알코올을 혼합한 가소올 연료에 의한 부식이 없어 연료 잔량 경고 센서의 내구성을 향상시킬 수 있다.In order to achieve the above object, the present invention provides a junction structure of a fuel level warning sensor in which a thermistor element is electrically connected through a lead frame in a cylindrical metal housing, wherein electrodes are formed on opposite sides of the thermistor element. And a lead frame having a concave portion formed at both ends of the thermistor element by inserting the thermistor element into electrical connection with the electrode, so that the junction between the thermistor element and the lead frame is mixed with gasoline and alcohol. There is no corrosion by the fuel level warning sensor can improve the durability.

도 1은 종래의 연료 잔량 경고 센서의 내부구조를 도시한 단면도,1 is a cross-sectional view showing the internal structure of a conventional fuel level warning sensor;

도 2는 도 1의 A-A 선 단면도,2 is a cross-sectional view taken along the line A-A of FIG.

도 3은 본 발명에 따른 서미스터 소자의 접합구조를 도시한 단면도,3 is a cross-sectional view showing a junction structure of a thermistor element according to the present invention;

도 4는 본 발명에 따른 연료 잔량 경고 센서의 요부 분해 사시도.4 is an exploded perspective view of main parts of a fuel level warning sensor according to the present invention;

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10 ; 서미스터 소자 11,11 ; 전극10; Thermistor elements 11,11; electrode

12, 12' ; 리드 프레임 13 ; 오목부12, 12 '; Lead frame 13; Recess

14 ; 금속 하우징 15 ; 절연판14; Metal housing 15; Insulation plate

16 ; 터미널16; terminal

본 발명의 상기 목적과 여러 가지 장점은 이 기술 분야에 숙련된 사람들에 의해 첨부된 도면을 참조하여 하기에 기술되는 발명의 바람직한 실시예로부터 더욱 명확하게 될 것이다.The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

이하, 첨부된 도면을 참조하여 본 발명의 일실시예에 따른 연료 잔량 경고 센서를 상세하게 설명한다.Hereinafter, a fuel remaining warning sensor according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명에 따른 서미스터 소자의 접합구조를 도시한 단면도이며, 도 4는 본 발명에 따른 연료 잔량 경고 센서의 요부 분해 사시도이다.3 is a cross-sectional view illustrating a junction structure of a thermistor element according to the present invention, and FIG. 4 is an exploded perspective view of main parts of a fuel level warning sensor according to the present invention.

도시된 바와 같이, 본 발명은 원통형상의 금속재질의 하우징(14) 내부에 서미스터 소자(10)가 리드 프레임(12,12')에 지지되어 내장된다.As shown, in the present invention, the thermistor element 10 is supported by the lead frames 12 and 12 'in the cylindrical metal housing 14 and is embedded therein.

일측 리드 프레임(12)은 하우징(14)의 바닥면에 전기적으로 접합되며, 타측 리드 프레임(12')은 하우징(14)의 개방면에 설치되는 절연판(15)에 설치된 터미널(16)과 전기적으로 접합된다.One lead frame 12 is electrically connected to the bottom surface of the housing 14, and the other lead frame 12 ′ is electrically connected to the terminal 16 installed on the insulating plate 15 installed on the open surface of the housing 14. Is bonded.

상기 서미스터 소자(10)는 직육면체 형상의 사각 칩 형상을 가지며, 장축방향으로 서로 반대되는 면에 서로 엇갈리도록 전극(11,11')이 형성된다. 이때 상기 전극(11)과 반대되는 면에 형성된 전극(11')는 서로 겹쳐지는 부분을 갖도록 형성된다. 전극(11,11') 재료로는 내알콜성을 갖는 Au, Ag-Pd 등이 적당하다.The thermistor element 10 has a rectangular chip shape having a rectangular parallelepiped shape, and electrodes 11 and 11 'are formed on the surfaces opposite to each other in the major axis direction. In this case, the electrodes 11 ′ formed on the surface opposite to the electrodes 11 are formed to have portions overlapping each other. Suitable materials for the electrodes 11, 11 'are Au, Ag-Pd and the like having alcohol resistance.

한편, 리드 프레임(12,12')의 선단에는 서미스터 소자(10)의 일측단부가 삽입되어 지지될 수 있는 오목부(13,13')가 형성된다. 예컨대, 서미스터 소자(10)가 사각 칩 형상을 가지므로 오목부(13,13')도 사각칩 형상의 일측단부를 삽입할 수 있는 사각오목부로 이루어진다. 따라서, 리드 프레임(12,12')의 오목부(13,13')에 서미스터 소자(10)의 양측단부가 각각 삽입되어 압착고정되며, 이때 서미스터 소자(10)의 장축방향으로 반대되는 면에 형성된 전극(12,12')과 오목부(13,13') 사이에 각각 독립적으로 전기적인 접속이 이루어진다.Meanwhile, recesses 13 and 13 'may be formed at the front end of the lead frames 12 and 12' to allow one side end of the thermistor element 10 to be inserted and supported. For example, since the thermistor element 10 has a square chip shape, the recesses 13 and 13 'also include a square recess portion into which one end of the square chip shape can be inserted. Therefore, both end portions of the thermistor element 10 are inserted into the recesses 13 and 13 'of the lead frames 12 and 12', respectively, and are pressed and fixed to each other. The surface of the thermistor element 10 is opposite to the major axis direction. Electrical connection is made independently between the formed electrodes 12 and 12 'and the recesses 13 and 13', respectively.

이와같이 구성된 본 발명에 따른 서미스터 소자의 접합구조는 리드 프레임(12,12')에 의해 하우징(14)에 대하여 견고하게 지지되면서 전기적으로 연결된다.The junction structure of the thermistor element according to the present invention configured as described above is electrically connected to the housing 14 by the lead frames 12 and 12 'while being firmly supported.

즉, 리드 프레임(12,12')과 서미스터 소자(10)의 전기적 접합을 위해 서미스터 소자(10)에 구멍을 뚫거나 전도성 접착제를 사용하지 않아도 되므로 조립공수의 절감을 가져오게 된다.That is, it is not necessary to drill holes in the thermistor element 10 or use a conductive adhesive for the electrical connection between the lead frames 12 and 12 ′ and the thermistor element 10, resulting in a reduction in assembly labor.

특히, 알코올 성분에 대한 부식성이 강한 실버 페이스트(Ag paste) 등으로 이루어진 전도성 접착제를 사용하지 않게 되므로 부식으로 인한 저항값의 변화가 일어나지 않는다.In particular, since the conductive adhesive made of silver paste (Ag paste), which is highly corrosive to the alcohol component, is not used, a change in resistance due to corrosion does not occur.

이상, 상기 내용은 본 발명의 바람직한 일실시예를 단지 예시한 것으로 본 발명의 당업자는 본 발명의 요지를 변경시킴이 없이 본 발명에 대한 수정 및 변경을 가할 수 있음을 인지해야 한다.In the above description, it should be understood that those skilled in the art can make modifications and changes to the present invention without changing the gist of the present invention as it merely illustrates a preferred embodiment of the present invention.

이와같이 가솔린에 알코올이 함유된 가소올 연료가 저장된 연료탱크에 본 발명의 연료 잔량 경고 센서를 부착하더라도 부식성이 없어 센서의 기능을 원활하게 수행할 수 있으며, 내구성을 향상시켜 부품의 수명을 연장하는 효과를 얻을 수 있다.In this way, even if the fuel level warning sensor of the present invention is attached to the fuel tank in which gasoline-containing alcohol fuel is stored in gasoline, the function of the sensor can be smoothly performed without corrosiveness, and the durability is extended to extend the life of parts. Can be obtained.

Claims (2)

원통형상의 금속재질의 하우징 내부에 서미스터 소자가 리드 프레임을 매개로 전기적으로 연결된 연료 잔량 경고 센서의 접합구조에 있어서, 상기 서미스터 소자의 대향하는 양측면에 전극을 형성하고, 상기 서미스터 소자를 끼워넣어 상기 전극과 전기적 접속이 이루어지도록 오목부를 갖는 리드 프레임이 상기 서미스터 소자의 양단에 압착되어 형성된 접합구조를 갖는 연료 잔량 경고 센서.In a junction structure of a fuel level warning sensor electrically connected to a thermistor element through a lead frame in a cylindrical metal housing, electrodes are formed on opposite sides of the thermistor element, and the thermistor element is inserted to insert the electrode. And a lead frame having a concave portion formed by crimping the both ends of the thermistor element so as to make electrical connection with the fuel residual amount warning sensor. 제 1 항에 있어서,The method of claim 1, 상기 전극의 재료가 Au 또는 Ag-Pd인 것을 특징으로 하는 연료 잔량 경고 센서.Fuel remaining warning sensor, characterized in that the material of the electrode is Au or Ag-Pd.
KR1019980033242A 1998-08-17 1998-08-17 Fuel residue caution sensor of automobile KR20000014041A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019980033242A KR20000014041A (en) 1998-08-17 1998-08-17 Fuel residue caution sensor of automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019980033242A KR20000014041A (en) 1998-08-17 1998-08-17 Fuel residue caution sensor of automobile

Publications (1)

Publication Number Publication Date
KR20000014041A true KR20000014041A (en) 2000-03-06

Family

ID=19547387

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019980033242A KR20000014041A (en) 1998-08-17 1998-08-17 Fuel residue caution sensor of automobile

Country Status (1)

Country Link
KR (1) KR20000014041A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000026132A (en) * 1998-10-17 2000-05-15 밍 루 Sensor for residual mass of fuel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000026132A (en) * 1998-10-17 2000-05-15 밍 루 Sensor for residual mass of fuel

Similar Documents

Publication Publication Date Title
US6885199B2 (en) Fuel sensor
US5129261A (en) Three wire potentiometric liquid level sensor
US5138881A (en) Liquid level sensor including conductive plastic technology
US20080030208A1 (en) Current sensor
US4732663A (en) Oxygen sensor
US7091819B1 (en) Variable resistor card for a fuel level sensor
US20080037967A1 (en) Heating Device for Fuel
US7030629B1 (en) In line fluid quality sensor
JPH0687050B2 (en) Oxygen sensing device
JPH04319634A (en) Temperature sensor device
US20220200196A1 (en) Contact Pin with a Cooling Channel System and Electrical Plug with such a Contact Pin
CN108346767A (en) Connection component
US20070125663A1 (en) Liquid-condition detection element and detection sensor
KR20000014041A (en) Fuel residue caution sensor of automobile
CN113950616A (en) Temperature sensor and motor
KR19990061408A (en) Fuel level warning sensor of car
KR200178197Y1 (en) Fuel alarm sensor of automobile
US20060267785A1 (en) Liquid level sensor
JP2007010587A (en) Liquid state detection sensor
KR200178196Y1 (en) A sensor of warning the fuel shortage for anti-alchoholic vehicles
JP2004226325A (en) Temperature detector
JPH0230085A (en) Cylindrical heater
JP2005017070A (en) Thermistor type temperature detector for vehicle
JPH0445202Y2 (en)
JPH05142013A (en) Thermistor liquid-level detector

Legal Events

Date Code Title Description
N231 Notification of change of applicant
A201 Request for examination
SUBM Submission of document of abandonment before or after decision of registration