KR20070062229A - Detecting device of antifreezing density and coolant amount - Google Patents

Detecting device of antifreezing density and coolant amount Download PDF

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KR20070062229A
KR20070062229A KR1020050122028A KR20050122028A KR20070062229A KR 20070062229 A KR20070062229 A KR 20070062229A KR 1020050122028 A KR1020050122028 A KR 1020050122028A KR 20050122028 A KR20050122028 A KR 20050122028A KR 20070062229 A KR20070062229 A KR 20070062229A
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coolant
hydrometer
amount
gauge
density
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KR1020050122028A
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Korean (ko)
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서경원
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기아자동차주식회사
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Publication of KR20070062229A publication Critical patent/KR20070062229A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/36—Analysing materials by measuring the density or specific gravity, e.g. determining quantity of moisture
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
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  • General Health & Medical Sciences (AREA)
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  • Emergency Management (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

A device for detecting the density of antifreezing solution and an amount of coolant is provided to improve durability of a car by appropriately managing the coolant amount and the antifreezing solution density always. A device for detecting the density of antifreezing solution and an amount of coolant includes a coolant reservation tank(1), a gravimeter(2), a resistance gauge(3), an ECU(Engine Control Unit), and a warning gauge(4). The gravimeter is installed with moving up and down by buoyancy of the coolant in the coolant reservation tank. The resistance gauge is connected with a top of the gravimeter. The resistance gauge detects up and down movements of the gravimeter and inputs a detection signal in response to the detected movement to the ECU. The resistance gauge is connected with an input terminal of the ECU. The warning gauge installed on a dashboard is connected with an output terminal of the ECU to easily recognize insufficiency of the coolant amount and the antifreezing solution density.

Description

부동액 농도 및 냉각수량 검출장치{Detecting device of antifreezing density and coolant amount}Detecting device of antifreezing density and coolant amount

도 1은 본 발명에 따른 부동액 농도 및 냉각수량 검출장치의 구성도,1 is a block diagram of an antifreeze concentration and the amount of cooling water according to the present invention,

도 2는 부동액 농도가 낮거나 냉각수량이 부족한 경우의 본 발명에 따른 검출장치의 작동 상태도,2 is an operating state diagram of a detection apparatus according to the present invention when the antifreeze concentration is low or the amount of cooling water is insufficient;

도 3은 부동액 농도가 과대하거나 냉각수량이 많은 경우의 본 발명에 따른 검출장치의 작동 상태도이다.3 is an operating state diagram of the detection apparatus according to the present invention when the antifreeze concentration is excessive or the amount of cooling water is large.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

1-리저버탱크 2-비중계1-Reservoir Tank 2-Scale

3-저항게이지 4-경보게이지3-Resistance Gauge 4-Alarm Gauge

5-유동방지돌기5-flow prevention protrusion

본 발명은 엔진의 냉각수에 함유되는 부동액의 농도와 냉각수량의 과부족을 검출하여 운전자에게 인지시켜 주는 부동액 농도 및 냉각수량 검출장치에 관한 것이다.The present invention relates to an antifreeze concentration and a coolant amount detection device which detects an excessive or insufficient concentration of an antifreeze and an amount of the coolant contained in a coolant of an engine and recognizes the driver to the driver.

종래 차량에는 엔진의 과열을 방지하기 위해 냉각수가 사용되고 있는 데, 이 냉각수량이 적으면 엔진의 연소 열을 제대로 냉각시켜 주지 못해서 엔진이 과열되고, 이로 인해 엔진의 피스톤이 소착되게 되는 등의 문제가 발생하게 된다.In a conventional vehicle, a coolant is used to prevent the engine from overheating. When the amount of the coolant is small, the engine is overheated because it does not properly cool the combustion heat of the engine, which causes the engine piston to sinter. Will occur.

그리고, 겨울철에 상기 냉각수가 결빙되는 것을 방지하기 위해 냉각수에 부동액을 혼합하고 있는 데, 상기 부동액은 통상적으로 에틸렌 글리콜에 청색 물감과 안정제, 부식 방지제 등을 넣어 혼합하여 사용하고 있고, 그 혼합 비율은 일반적으로 물과 40~60%로 희석하여 사용하며, 최대 70%가 넘지 않는 것이 바람직하다.In addition, in order to prevent the cooling water from freezing in winter, the antifreeze is mixed with the cooling water, and the antifreeze is generally used by mixing blue paint, a stabilizer, a corrosion inhibitor, and the like in ethylene glycol, and the mixing ratio thereof is Generally, it is used after diluting with water at 40 ~ 60%, preferably not more than 70%.

상기 부동액은 엔진의 냉각시스템을 따라 냉각수에 혼합된 상태로 유동하면서 엔진의 과열을 방지하면서 첨가제를 매개로 부식도 예방하게 된다.The antifreeze flows in the state of being mixed with the coolant along the engine cooling system while preventing overheating of the engine and preventing corrosion through an additive.

상기 부동액의 농도가 지나치게 높으면 열팽창계수가 작아져서 워터재킷에서 열교환량이 작아지고, 이로 인해 엔진이 과열되게 되는 반면에, 부동액의 농도가 지나치게 낮으면 냉각수가 결빙되어 엔진의 시동이 불능하게 되거나 냉각수 유동경로상에 부식을 발생시키게 된다.If the concentration of the antifreeze is too high, the coefficient of thermal expansion is small to reduce the amount of heat exchange in the water jacket, resulting in the engine overheating, while if the concentration of the antifreeze is too low, the coolant is frozen, making the engine unable to start or coolant flow Corrosion will occur in the path.

이에 따라, 차량의 냉각수량과 부동액의 농도를 항상 적정하게 관리해 주어야 하는 데, 종래에는 냉각수량을 확인하기 위해서는 리저브탱크측 냉각수량을 직접 게이지를 사용해서 확인해야 하고, 부동액의 농도는 일반 운전자가 직접 측정하기가 곤란하여, 운전자가 냉각수량과 부동액의 농도를 항상 적정하게 관리하기가 어려운 문제점이 있었다.Accordingly, the amount of cooling water and the concentration of the antifreeze of the vehicle must be properly maintained at all times. In order to check the amount of the cooling water, the amount of the cooling water of the reservoir tank must be directly checked by using a gauge. Since it is difficult to measure directly, it is difficult for the operator to properly manage the amount of cooling water and the concentration of the antifreeze at all times.

이에 본 발명은 상기와 같은 사정을 감안하여 안출된 것으로, 운전자가 직접 게이지를 사용하여 측정하기 않고서도 냉각수량과 부동액 농도의 과부족을 계기판에 마련된 경보게이지를 통해서 용이하게 인지할 수 있도록 하여 차량의 냉각수량과 부동액 농도의 적정 관리를 도모할 수 있도록 하는 부동액 농도 및 냉각수량 검출장치를 제공함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above circumstances, so that the driver can easily recognize the lack of coolant amount and the antifreeze concentration through an alarm gauge provided in the instrument panel without directly using a gauge. It is an object of the present invention to provide an antifreeze concentration and a coolant amount detection device capable of appropriately managing the amount of cooling water and the antifreeze concentration.

상기와 같은 목적을 달성하기 위한 본 발명은, 냉각수의 부력을 받아서 상하로 이동되게 설치되는 비중계와, 이 비중계의 상하 이동을 감지하는 저항게이지, 이 저항게이지의 감지신호를 입력받아 상응하는 제어신호를 출력하는 엔진제어유니트, 이 엔진제어유니트의 제어신호를 인가받아 상응하는 아날로그 눈금이나 디지털 숫자로 표시하는 경보게이지를 구비하고 있다.The present invention for achieving the above object, a hydrometer installed to move up and down under buoyancy of the cooling water, a resistance gauge for detecting the vertical movement of the hydrometer, the control signal corresponding to receiving the detection signal of the resistance gauge It is equipped with an engine control unit that outputs a control signal and an alarm gauge that receives the control signal of the engine control unit and displays the corresponding analog scale or digital number.

바람직하기로는, 상기 비중계의 상부와 하부에는 비중계의 좌우 유동과 상하 오버 스트로크를 방지하는 다수개의 유동방지돌기가 구비된 것을 특징으로 한다.Preferably, the upper and lower portions of the hydrometer are characterized in that a plurality of flow preventing projections for preventing the left and right flow of the hydrometer and up and down overstroke.

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1에는 본 발명에 따른 부동액 농도 및 냉각수량 검출장치의 구성이 도시되어 있는 바, 냉각수 리저버탱크(1)에는 비중계(2)가 냉각수의 부력을 받아서 상하로 이동되게 설치되고, 상기 비중계(2)의 상단부는 공지의 저항게이지(3)와 연결되어, 상기 비중계가 상하로 이동할 때에 상기 저항게이지가 이를 감지해서 상응하는 감지신호를 엔진제어유니트(ECU)로 입력하도록 상기 저항게이지(3)는 엔진제어유니트의 입력단에 접속되어 있다.Figure 1 shows the configuration of the antifreeze concentration and the coolant amount detection apparatus according to the present invention, in the coolant reservoir tank 1, a hydrometer (2) is installed to move up and down under buoyancy of the coolant, the hydrometer (2) Is connected to a known resistance gauge 3, and the resistance gauge 3 detects the resistance gauge when the hydrometer moves up and down and inputs a corresponding detection signal to the engine control unit ECU. It is connected to the input terminal of the engine control unit.

상기 엔진제어유니트의 출력단에는 운전자에게 냉각수량과 부동액 농도의 과 부족을 용이하게 인지시킬 수 있도록 계기판에 마련된 경보게이지(4)가 접속되어, 상기 게이지가 가리키는 아날로그 눈금이나 디지털 숫자 등을 매개로 운전자가 인지할 수 있게 되어 있다.At the output of the engine control unit, an alarm gauge 4 provided on the instrument panel is connected to the driver so that the driver can easily recognize an excessive shortage of the coolant amount and the antifreeze concentration, and the driver is connected via an analog scale or digital number indicated by the gauge. It is to be recognized.

상기 비중계가 냉각수량의 부력에 의해 상하로 이동할 때에 비중계의 안정된 운동을 유도하도록 상기 비중계의 상부와 하부 2군데에 각각 링 형상의 유동방지돌기(5)가 설치되어 있다. 상기 유동방지돌기는 비중계가 좌우로 흔들리는 것을 방지할 뿐만 아니라 상하로 오버 스트로크되는 것을 방지하게 된다.A ring-shaped flow preventing protrusion 5 is provided at each of the upper and lower portions of the hydrometer in order to induce a stable movement of the hydrometer when the hydrometer moves up and down by buoyancy of the cooling water amount. The flow preventing protrusion not only prevents the hydrometer from shaking left and right, but also prevents the overstroke up and down.

도 2에는 냉각수량이 부족하거나 부동액의 농도가 낮을 때의 비중계의 작동 상태가 도시되어 있는 바, 즉 도 1에 도시된 정상적인 상태에서 냉각수량이 부족하거나 부동액의 농도가 낮게 되면 비중계가 하부로 이동하게 되고, 이러한 비중계의 하부 이동은 상기 저항게이지를 통해 엔진제어유니트가 감지해서 운전자에게 계기판에 마련된 게이지 등을 통해 주의를 환기시켜 주게 된다.2 shows the operating state of the hydrometer when the amount of cooling water is low or the concentration of the antifreeze is low, that is, when the amount of cooling water is low or the concentration of the antifreeze is low in the normal state shown in FIG. The lower movement of the hydrometer is sensed by the engine control unit through the resistance gauge to alert the driver through a gauge provided on the instrument panel.

그리고, 상기 상부 유동방지돌기(5)가 하우징에 형성된 비중계의 관통홀 주변 가장자리에 걸려서 안착되면서 비중계를 지지함에 따라 비중계가 하방으로 오버 스트로크되는 것을 방지하게 된다.In addition, the upper flow preventing protrusion 5 is seated on the periphery of the perforated hole of the hydrometer formed in the housing to support the hydrometer while preventing the hydrometer from overstroke downward.

도 3에는 냉각수량이 과대하거나 부동액의 농도가 높을 때의 비중계의 작동상태가 도시되어 있는 바, 즉 도 1에 도시된 정상적인 상태에서 비중계가 냉각수의 부력을 받아서 상승하게 되고, 이러한 비중계의 상승 이동은 상기 저항게이지를 통해 엔진제어유니트가 감지해서 계기판에 마련된 게이지를 통해 운전자에게 주의를 환기시켜주게 된다.Figure 3 shows the operating state of the hydrometer when the amount of coolant is excessive or the concentration of the antifreeze is high, that is, in the normal state shown in FIG. The engine is detected by the engine control unit through the resistance gauges to draw attention to the driver through the gauge provided on the instrument panel.

또한, 상기 비중계가 상승할 때에 비중계의 하부에 장착된 유동방지돌기(5)가 하우징에 형성된 비중계의 관통홀 주변 가장자리에 걸려짐에 따라 비중계의 상승 오버 스트로크가 방지되게 된다.In addition, when the hydrometer is raised, as the flow preventing protrusion 5 mounted on the lower part of the hydrometer is caught by the periphery of the through hole of the hydrometer formed in the housing, the rising overstroke of the hydrometer is prevented.

이상 설명한 바와 같이 본 발명에 따른 부동액 농도 및 냉각수량 검출장치에 의하면, 냉각수와 이에 혼합되는 부동액 농도의 과부족 상태를 검출해서 운전자에게 적절한 경보수단을 매개로 인지시켜 주게 되어, 운전자가 냉각수량과 부동액의 농도를 항상 적절하게 관리해서 차량의 내구성을 향상시킬 수 있는 등의 효과가 있게 된다.As described above, according to the antifreeze concentration and the coolant amount detecting device according to the present invention, an excessive or insufficient state of the coolant and the antifreeze concentration mixed therewith is detected and the driver is notified by an appropriate alarm means. It is possible to improve the endurance of the vehicle by properly managing the concentration of.

Claims (3)

냉각수의 부력을 받아서 상하로 이동되게 설치되는 비중계와, 이 비중계의 상하 이동을 감지하는 저항게이지, 이 저항게이지의 감지신호를 입력받아 상응하는 제어신호를 출력하는 엔진제어유니트, 이 엔진제어유니트의 제어신호를 인가받아 상응하는 아날로그 눈금이나 디지털 숫자로 표시하는 경보게이지를 구비한 부동액 농도 및 냉각수량 검출장치.A hydrometer installed to move up and down under buoyancy of the coolant, a resistance gauge for detecting the vertical movement of the hydrometer, an engine control unit that receives the detection signal of this resistance gauge and outputs a corresponding control signal, An antifreeze concentration and coolant amount detection device having an alarm gauge that receives a control signal and displays the corresponding analog scale or digital number. 제 1항에 있어서, 상기 비중계의 상부와 하부에는 비중계의 좌우 유동과 상하 오버 스트로크를 방지하는 다수개의 유동방지돌기가 구비된 것을 특징으로 하는 부동액 농도 및 냉각수량 검출장치.The apparatus of claim 1, wherein a plurality of flow preventing protrusions are provided on upper and lower portions of the hydrometer to prevent left and right flows and upper and lower overstrokes of the hydrometer. 제 2항에 있어서, 상기 비중계가 엔진의 냉각수를 저장하는 리저버탱크에 설치된 것을 특징으로 하는 부동액 농도 및 냉각수량 검출장치.The antifreeze concentration and coolant amount detection device according to claim 2, wherein the hydrometer is installed in a reservoir tank that stores coolant of the engine.
KR1020050122028A 2005-12-12 2005-12-12 Detecting device of antifreezing density and coolant amount KR20070062229A (en)

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CN109490141A (en) * 2018-11-19 2019-03-19 珠海格力智能装备有限公司 The monitoring method of cutting fluid, apparatus and system
CN112483242A (en) * 2020-11-25 2021-03-12 浙江博鑫涵汽车零部件有限公司 Cooling device for automobile engine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109490141A (en) * 2018-11-19 2019-03-19 珠海格力智能装备有限公司 The monitoring method of cutting fluid, apparatus and system
CN112483242A (en) * 2020-11-25 2021-03-12 浙江博鑫涵汽车零部件有限公司 Cooling device for automobile engine
CN112483242B (en) * 2020-11-25 2021-12-10 浙江博鑫涵汽车零部件有限公司 Cooling device for automobile engine

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