KR101049430B1 - Electronic water pump with lightweight structure - Google Patents

Electronic water pump with lightweight structure Download PDF

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Publication number
KR101049430B1
KR101049430B1 KR1020090050752A KR20090050752A KR101049430B1 KR 101049430 B1 KR101049430 B1 KR 101049430B1 KR 1020090050752 A KR1020090050752 A KR 1020090050752A KR 20090050752 A KR20090050752 A KR 20090050752A KR 101049430 B1 KR101049430 B1 KR 101049430B1
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South Korea
Prior art keywords
hub
water pump
shaft
pulley
bushing
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KR1020090050752A
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Korean (ko)
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KR20100132106A (en
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김배경
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주식회사 지엔원
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Publication of KR20100132106A publication Critical patent/KR20100132106A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • 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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P5/12—Pump-driving arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/026—Selection of particular materials especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/02—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/11—Kind or type liquid, i.e. incompressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/40—Transmission of power
    • F05D2260/402—Transmission of power through friction drives
    • F05D2260/4021—Transmission of power through friction drives through belt drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/12—Light metals
    • F05D2300/121—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/17—Alloys
    • F05D2300/173—Aluminium alloys, e.g. AlCuMgPb
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

본 발명은 내연기관의 출력축에 의해 전달되는 동력을 운전상태에 따라 단속하여 선택적으로 냉각수를 펌핑하는 내연기관용 워터펌프로서; The present invention relates to a water pump for an internal combustion engine for selectively intercepting power transmitted by an output shaft of an internal combustion engine according to an operating state and pumping cooling water;

풀리(10)와 바디(20)가 나란하게 구성된 샤프트(30)와; 상기 샤프트(30)에 고정되며 그 둘레면에 베어링(15)을 통해 상기 풀리(10)가 장착된 허브(40); 및 상기 허브(40)에 일정간격을 두고 배치되어 가이드핀(53)을 통해 작동하고 전자석(60)을 통해 리턴하는 가동자(50)를 포함하며; 상기 허브(40)를 알루미늄 또는 알루미늄합금으로 성형하고, 상기 샤프트(30)와 상기 허브(40)의 결합부분에 스틸재질의 부싱(70)을 개재하여 상기 허브(40)의 억지끼움과정에서 발생하는 손상을 방지시킴으로써; A shaft 30 having the pulley 10 and the body 20 side by side; A hub 40 fixed to the shaft 30 and equipped with the pulley 10 through a bearing 15 on a circumferential surface thereof; And a mover 50 disposed at a predetermined interval on the hub 40 to operate through the guide pin 53 and to return through the electromagnet 60; The hub 40 is formed of aluminum or an aluminum alloy, and is generated during the interference fitting process of the hub 40 through a bushing 70 made of steel in a coupling portion of the shaft 30 and the hub 40. By preventing damage;

상기 워터펌프의 허브를 알루미늄재질로 성형하여 경량화하고 상기 샤프트에 스틸재질의 부싱을 통해 상기 허브를 억지끼움식으로 결합함으로써, 상기 워터펌프의 무게가 최소화되어 자동차 등의 연비향상에 도움이 되도록 한 것이다. The hub of the water pump is made of aluminum material to reduce the weight of the water pump, and the hub is forcedly coupled to the shaft through a bushing of steel material, so that the weight of the water pump is minimized to help improve fuel efficiency of an automobile. will be.

워터펌프, 샤프트, 풀리, 바디, 허브, 가동자, 알루미늄, 부싱 Water pump, shaft, pulley, body, hub, mover, aluminum, bushing

Description

경량화 구조를 갖는 전자식 워터펌프{Electric water pump having light weight structure} Electric water pump having light weight structure

본 발명은 내연기관의 회전력을 단속하여 선택적으로 냉각수를 펌핑하는 워터펌프에 관한 것으로, 특히 워터펌프를 경량화시킬 수 있도록 한 경량화 구조를 갖는 전자식 워터펌프에 관한 것이다.The present invention relates to a water pump that selectively pumps cooling water by intermittent rotational force of an internal combustion engine, and more particularly, to an electronic water pump having a light weight structure that enables the water pump to be lighter.

일반적으로, 워터펌프는 엔진을 포함한 전장품의 작동과정에서 발생하는 열을 냉각하여 작동상태로 세팅하는 것으로서, 이 워터펌프는 크랭크축의 풀리와 벨트나 체인을 통해 연결되어 동시에 구동하며, 특히 라디에이터에 수용된 냉각수를 흡인하여 워터자켓 등으로 공급하는 기능을 수행한다.In general, the water pump is to set the operating state by cooling the heat generated during the operation of the electrical equipment, including the engine, which is connected to the crankshaft pulley and run simultaneously by the belt or chain, especially in the radiator It sucks the cooling water and supplies it to the water jacket.

예컨대, 도 1에서와 같이, 워터펌프(100)는, 샤프트(120)에 장착됨은 물론 냉각수흡인기구를 내장한 바디(110)와, 상기 샤프트(120)의 선단부에 압입된 허브(130), 및 상기 허브(130)에 베어링(145)를 통해 고정되어 상기 내연기관의 출력축으로부터 회전력을 전달받는 풀리(140)로 이루어진다.For example, as shown in Figure 1, the water pump 100 is mounted to the shaft 120, as well as the body 110, the built-in cooling water suction mechanism, the hub 130 is pressed into the front end of the shaft 120, And a pulley 140 fixed to the hub 130 through a bearing 145 to receive a rotational force from an output shaft of the internal combustion engine.

따라서, 상기 워터펌프(100)의 풀리(140)와 상기 내연기관의 크랭크축에 벨트나 체인 등을 연결하면, 상기 풀리(140)에 의해 동시에 상기 바디(110)가 회전하게 되므로, 상기 바디(110)에 내장되어 있던 임펠러와 같은 흡인체가 작동하여 상기 라디에이터의 냉각수를 펌핑하는 것이다.Therefore, when the belt or the chain is connected to the pulley 140 of the water pump 100 and the crankshaft of the internal combustion engine, the body 110 is rotated at the same time by the pulley 140, the body ( A suction body such as an impeller built in 110 is operated to pump cooling water of the radiator.

그러나, 종래 워터펌프(100)는 상기 엔진의 온도와는 상관없이 엔진의 RPM에 비례하여 구동하는 구조로서, 예컨대 엔진의 초기구동 또는 냉각상태에서 냉각손실을 유발하여 에너지가 낭비됨은 물론 냉각상태의 지속으로 배기가스량이 증대하여 대기오염의 원인이 되는 문제점이 있었다.However, the conventional water pump 100 is a structure that is driven in proportion to the RPM of the engine irrespective of the temperature of the engine, for example, energy is wasted as a result of cooling loss during initial driving or cooling of the engine, as well as in a cooling state. There was a problem that the amount of exhaust gas continuously increased causing air pollution.

따라서, 상기 워터펌프(100)의 상기 허브(130)와 풀리(140)의 사이에 동력단속기구를 장착함으로써, 상기 엔진의 초기구동 또는 냉각상태에서 상기 워터펌프의 작동을 일시정지하였다가 상기 엔진이 세팅온도로 상승하여 난기 운전상태에서만 가동되도록 하는 장치가 개발되고 있다.Therefore, by mounting a power control mechanism between the hub 130 and the pulley 140 of the water pump 100, the operation of the water pump in the initial driving or cooling state of the engine temporarily stops the engine A device has been developed to rise to this setting temperature and operate only in warm operation.

즉, 도 1에서와 같이 상기 허브(130)에 가이드핀(153)을 따라 이동하면서 스프링(156)의 탄성력을 통해 상기 풀리(140)의 내벽면을 따라 접촉함은 물론 전자석(160)의 자력을 통해 상기 풀리(140)로부터 이탈하는 가동자(150)를 장착함으로써, 상기 풀리(140)의 회전력을 단속한다.That is, as shown in Figure 1 while moving along the guide pin 153 to the hub 130 along the inner wall surface of the pulley 140 through the elastic force of the spring 156, as well as the magnetic force of the electromagnet 160 By mounting the mover 150 to be separated from the pulley 140 through, the rotational force of the pulley 140 is interrupted.

그런데, 상기 워터펌프(100)는 구성부품의 강도를 고려하여 통상 스틸 재질로 성형하므로 경량화가 매우 어려움은 물론, 상기 구성부품을 스틸에 비해 경도가 낮은 재질로 성형하는 경우 상기 샤프트(120)에 억지끼움식으로 결합하는 과정에서 손상될 우려가 있는 문제점이 있었다. By the way, since the water pump 100 is formed of a steel material in consideration of the strength of the component parts, it is very difficult to reduce the weight, and of course, when the component parts are formed of a material having a lower hardness than steel, the shaft 120 There was a problem that there is a risk of damage in the process of combining by interference fit.

이에, 본 발명은 상기한 바와 같은 문제점을 해결하기 위하여 안출된 것으로서, 워터펌프에 구성된 허브를 알루미늄 재질로 성형하여 무게를 최소화시킴은 물론 상기 허브를 스틸재질의 부싱을 통해 결합하여 손상을 방지시킬 수 있도록 한 경량화 구조를 갖는 전자식 워터펌프를 제공하는 데에 그 목적이 있다.Accordingly, the present invention has been made in order to solve the problems as described above, to minimize the weight by forming a hub configured in the water pump of aluminum material to prevent damage by combining the hub through a bushing of steel material It is an object of the present invention to provide an electronic water pump having a light weight structure.

상기한 목적을 달성하기 위한 본 발명은; 내연기관의 출력축에 의해 전달되는 동력을 운전상태에 따라 단속하여 라디에이터의 냉각수를 선택적으로 펌핑하는 전자식 워터펌프로서; 상기 내연기관의 구동력을 전달받는 풀리와 상기 라디에이터의 냉각수를 펌핑하는 바디가 나란하게 구성된 샤프트와; 상기 샤프트의 선단부에 고정되며 그 둘레면에 베어링을 통해 상기 풀리가 장착된 허브; 및 상기 허브에 일정간격을 두고 배치되어 가이드핀을 따라 이동하면서 스프링의 탄성력을 통해 작동하고 전자석의 자력을 통해 리턴하는 가동자를 포함하며; The present invention for achieving the above object; An electronic water pump for selectively pumping the cooling water of the radiator by intermitting the power transmitted by the output shaft of the internal combustion engine according to the operating state; A shaft configured to have a pulley receiving the driving force of the internal combustion engine and a body for pumping the cooling water of the radiator in parallel; A hub fixed to the distal end of the shaft and equipped with the pulley through a bearing on a circumferential surface thereof; And a mover disposed at a predetermined interval on the hub to move along a guide pin to operate through an elastic force of a spring and return through a magnetic force of an electromagnet;

상기 허브를 알루미늄 또는 알루미늄합금으로 성형하고, 상기 샤프트와 상기 허브의 결합부분에 스틸재질의 부싱을 개재하여 상기 허브의 억지끼움과정에서 발생하는 손상을 방지시킨 구성이다.The hub is formed of aluminum or an aluminum alloy, and is prevented from damage occurring during the interference fitting process of the hub through a bushing made of a steel material in a coupling portion of the shaft and the hub.

이상에서와 같이 본 발명에 의한 장치에 의하면; 상기 워터펌프의 허브를 알루미늄재질로 성형하여 경량화하고 상기 샤프트에 스틸재질의 부싱을 통해 상기 허브를 억지끼움식으로 결합함으로써, 상기 워터펌프의 무게가 최소화되어 자동차 등의 연비향상에 도움이 되는 효과가 있는 것이다. According to the apparatus according to the present invention as described above; By forming the hub of the water pump made of aluminum material to reduce the weight and by coupling the hub to the shaft through a bushing of steel material, the weight of the water pump is minimized, which helps to improve fuel efficiency of automobiles. There is.

이하, 본 발명에 따른 실시예를 설명하면 다음과 같다. Hereinafter, an embodiment according to the present invention will be described.

도 2는 본 발명에 따른 전자식 워터펌프를 도시한 정단면도이며, 도 3은 본 발명에 따른 전자식 워터펌프의 허브를 도시한 단면도이고, 도 4는 본 발명에 따른 전자식 워터펌프의 부싱을 도시한 단면도이다. Figure 2 is a front sectional view showing an electronic water pump according to the present invention, Figure 3 is a cross-sectional view showing a hub of the electronic water pump according to the present invention, Figure 4 shows a bushing of the electronic water pump according to the present invention. It is a cross section.

내연기관의 출력축에 의해 전달되는 동력을 운전상태에 따라 단속하여 라디에이터의 냉각수를 선택적으로 펌핑하는 전자식 워터펌프로서; 상기 내연기관의 구동력을 전달받는 풀리(10)와 상기 라디에이터의 냉각수를 펌핑하는 바디(20)가 나란하게 구성된 샤프트(30)와; 상기 샤프트(30)의 선단부에 고정되며 그 둘레면에 베어링(15)을 통해 상기 풀리(10)가 장착된 허브(40); 및 상기 허브(40)에 일정간격을 두고 배치되어 가이드핀(53)을 따라 이동하면서 스프링(56)의 탄성력을 통해 작동하고 전자석(60)의 자력을 통해 리턴하는 가동자(50)를 포함하며; 상기 허브(40)를 알루미늄 또는 알루미늄합금으로 성형하고, 상기 샤프트(30)와 상기 허브(40)의 결합부분에 스틸재질의 부싱(70)을 개재하여 상기 허브(40)의 억지끼움과정에서 발생하는 상기 허브(40)의 손상을 방지시킨 구성이다.An electronic water pump for selectively pumping the cooling water of the radiator by intermitting the power transmitted by the output shaft of the internal combustion engine according to the operating state; A shaft 30 having a pulley 10 receiving the driving force of the internal combustion engine and a body 20 for pumping the coolant of the radiator in parallel; A hub 40 fixed to the distal end of the shaft 30 and mounted with the pulley 10 through a bearing 15 on a circumferential surface thereof; And a mover 50 disposed at a predetermined interval on the hub 40 to move along the guide pin 53 and operate through the elastic force of the spring 56 and return through the magnetic force of the electromagnet 60. ; The hub 40 is formed of aluminum or an aluminum alloy, and is generated during the interference fitting process of the hub 40 through a bushing 70 made of steel in a coupling portion of the shaft 30 and the hub 40. This configuration is to prevent the damage of the hub (40).

여기서, 워터펌프(1)는 내연기관의 출력축으로부터 공급되는 구동력을 풀리(10)를 통해 전달받아 냉각수의 펌핑작용을 수햄함은 물론 상기 엔진의 초기구동 또는 냉각상태에서는 상기 엔진을 구동력을 동력단속기구(40,50,60)를 통해 단속하여 냉각수의 펌핑작용을 차단하는 구성이다. Here, the water pump (1) receives the driving force supplied from the output shaft of the internal combustion engine through the pulley (10) to prevent the pumping action of the coolant, as well as to drive the power to the engine in the initial driving or cooling state of the engine Intermittent through the mechanism (40, 50, 60) to block the pumping action of the coolant.

그리고, 샤프트(30)는, 워터펌프(1)의 전체하중을 지지하는 것으로서, 그 선단부가 상기 허브(40)의 수용공간으로 삽입된다.The shaft 30 supports the total load of the water pump 1, and its tip is inserted into the accommodation space of the hub 40.

그리고, 풀리(10)는, 상기 내연기관의 출력축 바람직하게는 엔진의 크랭크축으로부터 공급되는 동력을 전달받아 샤프트(30)에 회전력을 제공하는 것으로서, 상기 샤프트(30)의 둘레면에 베어링(15)을 통해 설치하여 상기 샤프트(30)와 별개로 회전하도록 구성함이 바람직하다.The pulley 10 receives the power supplied from the output shaft of the internal combustion engine, preferably the crankshaft of the engine, and provides rotational force to the shaft 30. The bearing 15 is provided on the circumferential surface of the shaft 30. It is preferable to configure to rotate separately from the shaft 30 by installing through).

그리고, 바디(20)는 샤프트(30)의 둘레면에 장착되어 상기 라디에이터의 냉각수를 펌핑하는 것으로서, 상기 샤프트(30)의 둘레면에 상기 풀리(10)와 일정거리를 두고 장착함이 바람직하며, 특히 냉각수의 펌핑작용에 필요한 각종 내장부품들은 공지이므로 자세한 설명을 생략한다.In addition, the body 20 is mounted on the circumferential surface of the shaft 30 to pump the coolant of the radiator, and is preferably mounted at a predetermined distance from the pulley 10 on the circumferential surface of the shaft 30. In particular, various internal components necessary for the pumping action of the cooling water are well known, and thus detailed descriptions thereof will be omitted.

한편, 상기 워터펌프(1)의 동력을 자동차 등의 상태에서 따라 회전력을 단속하기 위한 수단으로서, 상기 바디(20)와 상기 풀리(10)의 사이공간에 상기 내연기관의 출력축으로부터 발생하는 구동력을 선택적으로 차단하여 상기 샤프트(30)에 전달하는 동력단속기구인 클러치기구가 구성된다.On the other hand, as a means for controlling the rotational force according to the power of the water pump 1 in the state of a car, etc., the driving force generated from the output shaft of the internal combustion engine in the space between the body 20 and the pulley 10 A clutch mechanism, which is a power control mechanism for selectively blocking and transmitting to the shaft 30, is configured.

이때, 상기 클러치기구는 상기 허브(40)와 상기 가동자(50)와 상기 전자석(60)이 상호 결합되어 작용한다.At this time, the clutch mechanism acts by coupling the hub 40, the mover 50, and the electromagnet 60 to each other.

여기서, 허브(40)는, 상기 샤프트(30)의 선단부에 억지끼움식으로 고정되어 상기 바디(20)와 함께 동시 회전하는 것으로서, 그 둘레면에 베어링(15)을 통해 상기 풀리(10)가 공회전가능하게 장착된다. Here, the hub 40 is fixed to the distal end of the shaft 30 to be co-rotated with the body 20, the pulley 10 through the bearing 15 on its circumferential surface It is mounted to be idling.

그리고, 가동자(50)는, 상기 허브(40)에 일정거리를 두고 배치되어 운전상태에 따라 가이드핀(53)을 따라 왕복이동하는 것으로서, 상기 가이드핀(53)의 이동경로에 장착되어 리턴력을 제공하는 스프링(56)과 상기 바디(20)의 측부에 장착되어 작동력을 제공하는 전자석(60)을 통해 장착한다.The mover 50 is disposed at a predetermined distance to the hub 40 to reciprocate along the guide pin 53 according to the driving state, and is mounted on the movement path of the guide pin 53 and returned. It is mounted through a spring 56 for providing a force and an electromagnet 60 is mounted to the side of the body 20 to provide an operating force.

따라서, 상기 가동자(50)는 상기 허브(40)와의 사이에 설치되는 상기 가이드핀(53)을 따라 이동하다가 상기 스프링(56)의 탄성력에 의해 상기 풀리(10)와 마찰방식으로 접촉하는 반면, 상기 전자석(60)에 인가되는 전기적 신호에 의해 상기 풀리(10)와의 마찰접촉이 해제되는 것이다.Accordingly, the mover 50 moves along the guide pin 53 installed between the hub 40 and in frictional contact with the pulley 10 by the elastic force of the spring 56. The frictional contact with the pulley 10 is released by an electrical signal applied to the electromagnet 60.

한편, 본 발명의 핵심적인 기술사상은 상기 워터펌프(1)의 전체무게를 경량화하여 자동차의 하중을 줄이기 위한 수단으로서, 상기 샤프트(30)의 둘레면에 부싱(70)을 개재한 상태에서 알루미늄 또는 알루미늄합금으로 성형한 허브(40)를 억지끼움식으로 결합함으로써 달성된다. On the other hand, the core technical idea of the present invention as a means for reducing the weight of the vehicle by reducing the overall weight of the water pump (1), the aluminum in the state in which the bushing 70 on the circumferential surface of the shaft 30 Or it is achieved by forcibly fitting the hub 40 formed from the aluminum alloy.

여기서, 부싱(70)은, 도 4에서와 같이, 상기 샤프트(30)와 상기 허브(40)의 결합부분에 개재되는 것으로서, 그 내주면에 상기 샤프트(30)의 둘레면과 맞대어지는 라운딩면(71)이 형성되면서 그 외주면에 상기 허브(40)의 내주면과 맞대어지는 스플라인면(72)이 형성되며, 특히 스틸재질로 성형하여 상기 허브(40)의 억지끼워맞춤과정에서 파손을 방지함이 바람직하다.Here, the bushing 70, as shown in Figure 4, is interposed in the coupling portion of the shaft 30 and the hub 40, the inner peripheral surface of the rounded surface (butt against the circumferential surface of the shaft 30 ( A spline surface 72 is formed on the outer circumferential surface of the hub 40 to face the inner circumferential surface of the hub 40. In particular, the spline surface 72 is formed of a steel material to prevent breakage during the interference fitting process of the hub 40. Do.

그리고, 허브(40)는, 상기 샤프트(30)의 선단부에 상기 부싱(70)을 통해 억지끼움식으로 결합되는 것으로서, 그 소재로는 알루미늄이나 알루미늄합금과 같은 소재를 사용함이 바람직하지만, 그 밖에도 상기 스틸에 비해 중량이 가벼운 소재라면 사용이 가능함은 당연하다. In addition, the hub 40 is coupled to the front end of the shaft 30 through the bushing 70 in a force-fitting manner, and as the material, it is preferable to use a material such as aluminum or an aluminum alloy. Of course, if the weight is lighter than the steel material can be used.

그리고, 스페이서(80)는, 상기 샤프트(30)와 상기 허브(40)의 접촉지점에 개재되어 상기 워터펌프의 에어갭을 조정하는 과정에서 이용되는 것으로서, 상기 워터펌프의 에어갭에 해당하는 두께로 형성하고, 특히 샤프트(30)의 둘레면에 형성된 단턱에 의해 이탈 및 유동이 방지된다. And, the spacer 80 is used in the process of adjusting the air gap of the water pump interposed at the contact point of the shaft 30 and the hub 40, the thickness corresponding to the air gap of the water pump It is formed in the, and in particular the separation and flow is prevented by the stepped formed in the peripheral surface of the shaft (30).

따라서, 상기 샤프트(30)와 상기 허브(40)의 결합부분에 상기 부싱(70)을 개재하고 상기 허브(40)를 억지끼움식으로 결합함으로써, 상기 워터펌프에 중량이 비교적 가벼운 상기 허브(40)를 장착할 수 있는 것이다.Therefore, the hub 40 is relatively light in weight to the water pump by forcibly engaging the hub 40 with the bushing 70 interposed between the shaft 30 and the hub 40. ) Can be installed.

이로 인해, 상기 샤프트(30)에 알루미늄재질의 상기 허브(40)를 장착하는 것이 가능해져, 상기 워터펌프(1)의 경량화가 가능해지므로, 상기 워터펌프를 장착하는 자동차 등의 전체중량이 가벼워져 연비향상을 유도할 수 있는 것이다.This makes it possible to mount the hub 40 made of aluminum to the shaft 30, thereby making it possible to reduce the weight of the water pump 1, thereby reducing the total weight of an automobile or the like to which the water pump is mounted. It can lead to improved fuel economy.

이상에서와 같이 본 발명의 일 실시 예를 설명하였으나, 본 발명은 이에 국한되지 않고 청구범위에 기재된 범위 내에서 변경이 가능할 것이다.As described above, an embodiment of the present invention has been described, but the present invention is not limited thereto and may be changed within the scope of the claims.

도 1은 종래기술에 따른 전자식 워터펌프를 도시한 정단면도,1 is a front sectional view showing an electronic water pump according to the prior art,

도 2는 본 발명에 따른 전자식 워터펌프를 도시한 정단면도,2 is a front sectional view showing the electronic water pump according to the present invention;

도 3은 본 발명에 따른 전자식 워터펌프의 허브를 도시한 단면도,3 is a cross-sectional view showing a hub of the electronic water pump according to the present invention;

도 4는 본 발명에 따른 전자식 워터펌프의 부싱을 도시한 단면도이다.Figure 4 is a cross-sectional view of the bushing of the electronic water pump according to the present invention.

* 도면 중 주요부분에 대한 부호의 설명 * Explanation of symbols on the main parts of the drawings

1 : 워터펌프 10 : 풀리 1: water pump 10: pulley

20 : 바디 30 : 샤프트 20: body 30: shaft

40 : 허브 50 : 가동자 40: hub 50: mover

53 : 가이드핀 56 : 스프링 53: guide pin 56: spring

60 : 전자석 70 : 부싱60: electromagnet 70: bushing

71 : 라운딩혐 72 : 스플라인면 71: rounding charge 72: spline plane

80 : 스페이서 80: spacer

Claims (1)

내연기관의 출력축에 의해 전달되는 동력을 운전상태에 따라 단속하여 라디에이터의 냉각수를 선택적으로 펌핑하는 전자식 워터펌프로서;An electronic water pump for selectively pumping the cooling water of the radiator by intermitting the power transmitted by the output shaft of the internal combustion engine according to the operating state; 상기 내연기관의 구동력을 전달받는 풀리(10)와 상기 라디에이터의 냉각수를 펌핑하는 바디(20)가 나란하게 구성된 샤프트(30)와; 상기 샤프트(30)의 선단부에 고정되며 그 둘레면에 베어링(15)을 통해 상기 풀리(10)가 장착된 허브(40); 및 상기 허브(40)에 일정간격을 두고 배치되어 가이드핀(53)을 따라 이동하면서 스프링(56)의 탄성력을 통해 작동하고 전자석(60)의 자력을 통해 리턴하는 가동자(50)를 포함하며; A shaft 30 having a pulley 10 receiving the driving force of the internal combustion engine and a body 20 for pumping the coolant of the radiator in parallel; A hub 40 fixed to the distal end of the shaft 30 and mounted with the pulley 10 through a bearing 15 on a circumferential surface thereof; And a mover 50 disposed at a predetermined interval on the hub 40 to move along the guide pin 53 and operate through the elastic force of the spring 56 and return through the magnetic force of the electromagnet 60. ; 상기 허브(40)를 알루미늄 또는 알루미늄합금 재질로 성형하고, 상기 샤프트(30)와 상기 허브(40)의 결합부분에 스틸재질의 부싱(70)을 개재하여 상기 허브(40)의 억지끼움과정에서 발생하는 손상을 방지시킨 것을 특징으로 하는 경량화 구조를 갖는 전자식 워터펌프. The hub 40 is formed of aluminum or an aluminum alloy, and interposed between the shaft 30 and the hub 40 through a bushing 70 made of steel, in the interference fitting process of the hub 40. Electronic water pump having a lightweight structure, characterized in that the damage caused to prevent.
KR1020090050752A 2009-06-09 2009-06-09 Electronic water pump with lightweight structure KR101049430B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015121687A1 (en) 2015-06-11 2016-12-15 Hyundai Motor Company Control method for an internal combustion engine heat management

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960017973A (en) * 1994-11-24 1996-06-17 김준웅 Manufacturing Method of Shrinkage Blended Yarn
KR100836314B1 (en) 2007-05-28 2008-06-09 현대자동차주식회사 Water pump pulley assembling structure for a vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960017973A (en) * 1994-11-24 1996-06-17 김준웅 Manufacturing Method of Shrinkage Blended Yarn
KR100836314B1 (en) 2007-05-28 2008-06-09 현대자동차주식회사 Water pump pulley assembling structure for a vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015121687A1 (en) 2015-06-11 2016-12-15 Hyundai Motor Company Control method for an internal combustion engine heat management

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