KR20020052349A - a cooling device of alternator for vehicles - Google Patents

a cooling device of alternator for vehicles Download PDF

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Publication number
KR20020052349A
KR20020052349A KR1020000081589A KR20000081589A KR20020052349A KR 20020052349 A KR20020052349 A KR 20020052349A KR 1020000081589 A KR1020000081589 A KR 1020000081589A KR 20000081589 A KR20000081589 A KR 20000081589A KR 20020052349 A KR20020052349 A KR 20020052349A
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KR
South Korea
Prior art keywords
alternator
temperature
blade
controller
clutch plate
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KR1020000081589A
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Korean (ko)
Inventor
김종렬
Original Assignee
이계안
현대자동차주식회사
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Priority to KR1020000081589A priority Critical patent/KR20020052349A/en
Publication of KR20020052349A publication Critical patent/KR20020052349A/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/25—Devices for sensing temperature, or actuated thereby
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/003—Couplings; Details of shafts

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

PURPOSE: A cooling apparatus is provided to reduce noise caused due to the blade of cooling apparatus, by preventing the blade from being rotated at a temperature lower than a predetermined level. CONSTITUTION: A magnet clutch plate(2) having a blade(2a) is arranged at a rotating shaft(1a) of an AC generator, in such a manner that the magnetic clutch plate is interlocked to the rotating shaft so as to perform a cooling action by the blade when the temperature of the AC generator is raised to a high level requiring cooling operation. The AC generator has a housing(1) where a temperature sensor(3) is installed, and a controller(4) is connected to the temperature sensor. A relay switch(5) interposed between the magnetic clutch plate and the battery is connected to the controller. Thus, the controller turns on the relay switch when the temperature of the AC generator sensed by the temperature sensor is higher than the temperature level set in the controller, to thereby supply power to the magnetic clutch plate.

Description

자동차용 교류발전기의 냉각장치{a cooling device of alternator for vehicles}Cooling device for alternator for vehicles {a cooling device of alternator for vehicles}

본 발명은 자동차용 교류발전기의 냉각장치에 관한 것으로, 특히 블레이드 회전에 의해 발생되는 소음이 저감되도록 된 자동차용 교류발전기의 냉각장치에 관한 것이다.The present invention relates to a cooling device for an automotive alternator, and more particularly, to a cooling device for an automotive alternator such that noise generated by blade rotation is reduced.

일반적으로 자동차의 전장품들은 2가지 전원에 의하여 전력을 공급받아 작동하게 되는데, 그 중 하나는 자동차 주행시 엔진의 회전에 연동되어 작동함으로써전력을 발생시키는 교류발전기이고, 다른 하나는 이 교류발전기에 의해 충전되어 교류발전기가 작동되지 않는 상태에서 전력을 공급할 수 있도록 된 배터리이다.In general, automotive electronics are powered by two power sources, one of which is an alternator that generates power by operating in conjunction with the rotation of the engine while driving a vehicle, and the other is charged by the alternator. The battery is designed to supply power when the alternator is not operating.

한편, 상기 교류발전기는 엔진의 크랭크샤프트 풀리에 드라이브벨트로 연결되어 연동되는 풀리를 갖추고 있어서, 이 풀리가 장착된 회전축이 회전하면서 고정자 내부에서 회전자를 회전시킴으로써 교류전력을 발생시킬 수 있도록 되어 있다.On the other hand, the alternator has a pulley which is connected to the crankshaft pulley of the engine by a drive belt and is interlocked so that the alternating current can be generated by rotating the rotor inside the stator while the rotating shaft on which the pulley is mounted rotates. .

한편, 상기 회전자는 고속으로 회전되고, 또한 유도전류가 발생되는 과정에서 교류발전기의 내부에는 열이 발생하게 되는데, 이 열이 발산되지 못하고 축적되어 교류발전기의 온도가 올라가게 되는 경우에는 발전효율이 저하되고 교류발전기 자체의 내구성에도 악영향을 미치게 되므로 교류발전기는 자체적으로 열을 냉각시킬 수 있도록 되어 있다.On the other hand, the rotor is rotated at a high speed, and heat is generated in the alternator in the process of generating an induced current, the heat generation efficiency is not generated when this heat is accumulated and the temperature of the alternator rises As it degrades and adversely affects the durability of the alternator itself, the alternator is capable of cooling the heat on its own.

즉, 종래에는 도 1에 도시된 바와 같이, 회전축(11)에 고정되어 동시 회전되는 회전자(10)의 양측면에 블레이드(12)가 형성되어 있어서 교류발전기가 작동할 때 상기 블레이드(12)가 회전하면서 일으키는 바람에 의하여 냉각작용이 이루어지도록 되어 있었다.That is, in the related art, as shown in FIG. 1, blades 12 are formed on both sides of the rotor 10 which are fixed to the rotating shaft 11 and are simultaneously rotated so that the blade 12 is operated when the alternator is operated. The cooling effect was caused by the wind caused by the rotation.

한편, 상기 블레이드(12)는 회전하면서 풍절음을 발생시키게 되는데, 이 풍절음은 주파수가 높은 고음으로서 차량의 실내에서 듣기에 상당히 불쾌한 소음(whine noise)이 된다.On the other hand, the blade 12 is rotated to generate a wind sound, which is a high frequency high-pitched sound is a very unpleasant noise to hear in the interior of the vehicle.

그런데, 종래 구조에서는 상기 교류발전기가 항상 냉각이 필요한 정도의 고온상태에 있는 것은 아님에도 불구하고, 블레이드(12)가 회전자(10)에 일체화되어 있기 때문에 교류발전기가 작동할 때는 항상 블레이드(12)가 회전되어 소음이 발생하게 되는 문제점이 있었다.However, in the conventional structure, although the alternator is not always in a high temperature state requiring cooling, since the blade 12 is integrated with the rotor 10, the blade 12 always operates when the alternator operates. There was a problem that the noise is generated by rotating).

이에 본 발명은 상기와 같은 문제점을 해결하기 위하여 발명된 것으로, 교류발전기가 냉각이 필요한 상태에 있을 때만 블레이드 회전에 의한 냉각작용이 이루어지도록 함으로써 냉각이 필요 없는 불필요한 상황에서 블레이드가 회전함으로써 소음이 발생되는 것을 방지할 수 있도록 된 자동차용 교류발전기의 냉각장치를 제공함에 그 목적이 있다.Accordingly, the present invention has been invented to solve the above problems, the cooling occurs by the blade rotation only when the alternator is in a state that requires cooling, the noise is generated by rotating the blade in an unnecessary situation that does not require cooling It is an object of the present invention to provide a cooling device for an automotive alternator that can be prevented.

도 1은 종래 자동차용 교류발전기의 회전축과 회전자의 정면도,1 is a front view of a rotating shaft and a rotor of a conventional automotive alternator,

도 2는 본 발명에 따른 자동차용 교류발전기의 냉각장치 구성도,2 is a configuration diagram of a cooling device for an automotive alternator according to the present invention;

도 3은 본 발명에 따른 자동차용 교류발전기의 냉각장치 작동 순서도이다.Figure 3 is a flow chart of the operation of the cooling apparatus of the automotive alternator according to the present invention.

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

1 : 하우징,1a : 회전축,1: housing, 1a: rotation shaft,

2 : 마그네틱 클러치 플레이트,2a : 블레이드,2: magnetic clutch plate, 2a: blade,

3 : 온도감지센서,4 : 콘트롤러,3: temperature sensor, 4: controller,

5 : 릴레이스위치,6 : 배터리.5: relay switch, 6: battery.

상기와 같은 목적을 달성하기 위한 본 발명은, 교류발전기의 회전축 상에 설치되되 상기 회전축과는 분리되어 있으며 냉각용 블레이드가 형성되어 있는 마그네틱 클러치 플레이트와, 상기 교류발전기의 하우징에 설치된 온도감지센서와, 이 온도감지센서로부터 교류발전기의 온도정보를 인가받아 냉각이 필요한 경우에 릴레이스위치를 on시키는 콘트롤러와, 이 콘트롤러에 의해 제어되어 on되었을 경우 상기 마그네틱 클러치 플레이트에 배터리의 전력을 공급하는 릴레이스위치를 포함하여 이루어진다.The present invention for achieving the above object, the magnetic clutch plate which is installed on the rotary shaft of the alternator is separated from the rotary shaft and the cooling blade is formed, and the temperature sensor installed in the housing of the alternator; A controller for turning on the relay switch when cooling is required by receiving temperature information of the alternator from the temperature sensing sensor and a relay switch for supplying battery power to the magnetic clutch plate when the controller is turned on by the controller. It is made to include.

따라서, 콘트롤러에 기설정된 온도값 이상일때만 릴레이스위치가 연결되어 마그네틱 클러치 플레이트가 회전축에 연동되게 함으로써 교류발전기의 냉각이 필요한 경우에만 블레이드에 의한 냉각작용이 이루어지게 됨으로써 냉각이 불필요한 경우에 풍절음이 발생되는 현상을 방지할 수 있도록 되어 있다.Therefore, the relay switch is connected only when the controller is above the preset temperature value so that the magnetic clutch plate is interlocked with the rotating shaft so that the cooling action by the blade is performed only when the alternator needs to be cooled, so that the wind is generated when the cooling is unnecessary. The phenomenon can be prevented.

이하, 본 발명을 첨부된 예시도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

도 2는 본 발명에 따른 자동차용 교류발전기의 냉각장치의 구성도로서, 본 발명은 교류발전기의 회전축(1a)상에 보통 상태에서는 회전축(1a)과 동시에 회전되지 않고 전력을 공급받아 자화되었을 경우에만 상기 회전축(1a)에 연동되어 회전되는 마그네틱 클러치 플레이트(2)가 설치되고, 이 마그네틱 클러치 플레이트(2)에는 냉각풍을 일으킬 수 있도록 블레이드(2a)가 형성되며, 상기 회전축(1a)에 일체화된 회전자와 이 회전자와 상응하여 유도전류가 발생될 수 있도록 하는 고정자를 내장하는 교류발전기의 하우징(1)에 온도감지센서(3)가 부착되는 한편, 이 온도감지센서(3)에 연결되어 교류발전기의 온도정보를 인가받고 인가받은 온도값이 설정된 온도값 보다 높을 경우에 릴레이스위치 on신호를 출력하는 콘트롤러(4)가 구비되며, 이 콘트롤러(4)에 연결됨은 물론 상기 마그네틱 클러치 플레이트(2)와 전력 공급원인 차량의 배터리(6)의 사이에 연결되어 상기 콘트롤러(4)로부터 on신호를 입력받았을 때 연결되어 배터리(6)의 전력을 마그네틱 클러치 플레이트(2)에 공급하는 릴레이스위치(5)가 구비된 구조로 이루어져 있다.2 is a configuration diagram of a cooling apparatus for an automotive alternator according to the present invention, in which the present invention is magnetized by being supplied with electric power without being rotated simultaneously with the rotating shaft 1a in a normal state on the rotating shaft 1a of the alternator. Only the magnetic clutch plate 2 which is rotated in conjunction with the rotary shaft 1a is installed, and the magnetic clutch plate 2 is formed with a blade 2a so as to cause a cooling wind, and is integrated with the rotary shaft 1a. A temperature sensor 3 is attached to a housing 1 of an alternator having a built-in rotor and a stator for generating an induced current corresponding to the rotor, while being connected to the temperature sensor 3 The controller 4 is provided with the temperature information of the alternator and outputs a relay switch on signal when the temperature is higher than the set temperature, and is connected to the controller 4. Of course, it is connected between the magnetic clutch plate 2 and the battery 6 of the vehicle which is the power source, and is connected when the on signal is received from the controller 4 to supply the power of the battery 6 to the magnetic clutch plate 2. It consists of a structure provided with a relay switch (5) to supply to.

이하, 본 발명의 작용 및 효과를 설명한다(도 2내지 도 3참조).Hereinafter, the operation and effects of the present invention will be described (see FIGS. 2 to 3).

차량이 주행할 때는 엔진의 크랭크축 회전에 연동되는 상기 회전축(1a)은 항상 회전되어 교류전력 생산이 이루어지며, 이때 교류발전기의 온도가 콘트롤러(4)에 설정되어 있는 온도 이하일 경우에는 상기 회전축(1a)이 회전됨에도 불구하고 마그네틱 클러치 플레이트(2)는 회전되지 않음으로써 블레이드(2a)가 회전되지 않아 풍절음이 발생하지 않게 된다.When the vehicle runs, the rotary shaft 1a, which is linked to the crankshaft rotation of the engine, is always rotated to produce AC power. When the temperature of the AC generator is lower than the temperature set in the controller 4, the rotary shaft ( Even though 1a) is rotated, the magnetic clutch plate 2 is not rotated so that the blade 2a is not rotated, so that no wind noise is generated.

즉, 교류발전기의 냉각이 필요 없는 경우에는 블레이드(2a)가 회전되지 않으므로 풍절음이 발생되지 않으며, 차량의 내부로 이 소음이 전달되지 않는다.That is, when the alternator does not need cooling, the blade 2a is not rotated, so no wind noise is generated, and this noise is not transmitted to the inside of the vehicle.

반면, 교류발전기의 온도가 설정온도 이상으로 상승되었을 경우에는 온도감지센서(3)로부터 이 온도값을 입력받은 콘트롤러(4)가 상기 릴레이스위치(5)를 on시킴으로써 배터리(6)의 전력이 마그네틱 클러치 플레이트(2)로 전달되며, 따라서 클러치 작용이 일어나 마그네틱 클러치 플레이트(2)가 상기 회전축(1a)에 연결되어 일체로 회전됨으로써 블레이드(2a)에 의해 냉각풍이 발생되어 교류발전기를 냉각시키게 된다.On the other hand, when the temperature of the alternator rises above the set temperature, the controller 4, which has received the temperature value from the temperature sensor 3, turns on the relay switch 5 so that the power of the battery 6 is magnetic. It is transmitted to the clutch plate 2, so that the clutch action occurs, the magnetic clutch plate 2 is connected to the rotary shaft (1a) to rotate integrally to generate a cooling wind by the blade (2a) to cool the alternator.

즉, 교류발전기의 온도가 냉각이 필요 없는 정도로 유지되고 있을때는 블레이드(2a)가 회전되지 않음으로써 풍절음발생에 의한 소음이 차내로 유입되지 않고, 교류발전기의 냉각이 필요한 경우에만 블레이드가 회전되도록 함으로써 엔진 가동시에는 항상 발생되던 블레이드(2a)에 의한 소음발생을 저감시킬 수 있도록 된 것이다.That is, when the temperature of the alternator is maintained to the extent that cooling is not necessary, the blade 2a is not rotated so that the noise caused by wind-wind noise is not introduced into the vehicle, and the blade is rotated only when the alternator needs to be cooled. It is possible to reduce the noise generated by the blade (2a) that was always generated when the engine is running.

이상 설명한 바와 같이 본 발명에 따르면, 교류발전기의 냉각을 위해 회전되는 블레이드가 냉각이 불필요한 일정(콘트롤러에 설정된)온도 이하의 온도에서는 회전되지 않게 됨으로써 엔진 가동시 항상 회전되던 종래에 비하여 블레이드에 의한 소음발생이 줄어들게 되는 효과가 있다.As described above, according to the present invention, the blade rotated for cooling the alternator is not rotated at a temperature below a certain temperature (set in the controller) where cooling is unnecessary, and thus noise caused by the blade compared to the conventional rotation, which is always rotated when the engine is running. The effect is to reduce the occurrence.

Claims (2)

교류발전기의 회전축(1a)상에 블레이드(2a)가 형성된 마그네틱 클러치 플레이트(2)가 설치되고, 이 마그네틱 클러치 플레이트(2)는 교류발전기의 온도가 냉각이 필요한 온도 이상으로 상승되었을 때 상기 회전축(1a)에 연동되어 블레이드(2a)에 의한 냉각작용이 이루어지도록 된 자동차용 교류발전기의 냉각장치.A magnetic clutch plate 2 having a blade 2a formed on the rotation shaft 1a of the alternator is installed, and the magnetic clutch plate 2 has the rotation shaft (when the temperature of the alternator rises above a temperature that requires cooling) Cooling device of the automotive alternator is linked to the 1a) so that the cooling action by the blade (2a) is made. 제 1항에 있어서, 상기 교류발전기의 하우징(1)에 온도감지센서(3)가 설치되고, 이 온도감지센서(3)에 콘트롤러(4)가 연결되며, 이 콘트롤러(4)에 상기 마그네틱 클러치 플레이트(2)와 배터리(6) 사이에 설치된 릴레이스위치(5)가 연결되어, 상기 온도감지센서(3)로부터 전달된 교류발전기의 온도가 콘트롤러(4)에 설정된 온도 이상일 경우 콘트롤러(4)가 상기 릴레이스위치(5)를 on시켜 마그네틱 클러치 플레이트(2)에 전력을 공급하도록 된 자동차용 교류발전기의 냉각장치.2. The temperature sensor 3 is installed in the housing 1 of the alternator, and the controller 4 is connected to the temperature sensor 3, and the magnetic clutch is connected to the controller 4. The relay switch 5 installed between the plate 2 and the battery 6 is connected to the controller 4 when the temperature of the alternator transmitted from the temperature sensor 3 is greater than or equal to the temperature set in the controller 4. Cooling device for an automotive alternator to turn on the relay switch (5) to supply power to the magnetic clutch plate (2).
KR1020000081589A 2000-12-26 2000-12-26 a cooling device of alternator for vehicles KR20020052349A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108964332A (en) * 2018-08-27 2018-12-07 衡阳市利美电瓶车制造有限责任公司 A kind of automobile-used fire-proof motor
CN111987866A (en) * 2020-08-14 2020-11-24 浙江大学 Temperature monitoring method and device for permanent magnet motor, computer readable storage medium and wind generating set

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940001561Y1 (en) * 1992-05-06 1994-03-19 김진호 Gems holder
JPH0779592A (en) * 1993-07-14 1995-03-20 Fuji Electric Co Ltd Method for controlling cooling fan of induction motor
JPH07322563A (en) * 1994-05-26 1995-12-08 Motor Jidosha Kk Cooling protective unit for electric apparatus
JPH10271602A (en) * 1997-03-26 1998-10-09 Toyota Autom Loom Works Ltd Drive circuit cooling device for battery-operated fork-lift
KR200214688Y1 (en) * 2000-08-29 2001-02-15 박순옥 A device for cooling the motor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940001561Y1 (en) * 1992-05-06 1994-03-19 김진호 Gems holder
JPH0779592A (en) * 1993-07-14 1995-03-20 Fuji Electric Co Ltd Method for controlling cooling fan of induction motor
JPH07322563A (en) * 1994-05-26 1995-12-08 Motor Jidosha Kk Cooling protective unit for electric apparatus
JPH10271602A (en) * 1997-03-26 1998-10-09 Toyota Autom Loom Works Ltd Drive circuit cooling device for battery-operated fork-lift
KR200214688Y1 (en) * 2000-08-29 2001-02-15 박순옥 A device for cooling the motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108964332A (en) * 2018-08-27 2018-12-07 衡阳市利美电瓶车制造有限责任公司 A kind of automobile-used fire-proof motor
CN111987866A (en) * 2020-08-14 2020-11-24 浙江大学 Temperature monitoring method and device for permanent magnet motor, computer readable storage medium and wind generating set

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