KR20070027809A - Electric moter under oil for low noise hydraulic power unit - Google Patents

Electric moter under oil for low noise hydraulic power unit Download PDF

Info

Publication number
KR20070027809A
KR20070027809A KR1020050079633A KR20050079633A KR20070027809A KR 20070027809 A KR20070027809 A KR 20070027809A KR 1020050079633 A KR1020050079633 A KR 1020050079633A KR 20050079633 A KR20050079633 A KR 20050079633A KR 20070027809 A KR20070027809 A KR 20070027809A
Authority
KR
South Korea
Prior art keywords
oil
electric motor
housing
low noise
stator
Prior art date
Application number
KR1020050079633A
Other languages
Korean (ko)
Other versions
KR100707487B1 (en
Inventor
이용범
성종기
Original Assignee
한국기계연구원
(주) 삼신하이텍
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 한국기계연구원, (주) 삼신하이텍 filed Critical 한국기계연구원
Priority to KR1020050079633A priority Critical patent/KR100707487B1/en
Publication of KR20070027809A publication Critical patent/KR20070027809A/en
Application granted granted Critical
Publication of KR100707487B1 publication Critical patent/KR100707487B1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/15—Mounting arrangements for bearing-shields or end plates
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
    • 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
    • H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
    • H02K2205/09—Machines characterised by drain passages or by venting, breathing or pressure compensating means

Landscapes

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

Abstract

A low noise oil supply unit is provided to prevent oil from being flowed into an electric motor by installing the sealing between an electric motor housing, and front and rear covers. In a low noise oil supply unit, an electric motor(3) is installed inside an oil tank. In the electric motor(3), a housing(31) has a stator(311). The stator(311) is installed on an inner circumference of the housing(31). The stator(311) has open front and rear sides. A rotary shaft is protrusively installed on an inner side of the stator(311). The rotary shaft has a rotor(321) on a circumference of the rotary shaft. Front and rear cover plates(33) has a bearing and a through hole(331). The front and rear cover plates(33) covers front and rear sides of the housing(31) The bearing is installed inside the front and rear cover plates(33) to support the rotary shaft. A cooling hole(361) is installed inside a circumference wall of the housing(31) to be connected to a cooling water pipe(36).

Description

저소음 오일 공급장치용 유중 전기모터{Electric moter under oil for low noise hydraulic power unit}Electric moter under oil for low noise hydraulic power unit

도 1은 본 발명에 따른 저소음 오일 공급장치용 유중 전기모터를 나타낸 사시도. 1 is a perspective view showing an oil-in-water electric motor for a low noise oil supply device according to the present invention.

도 2는 본 발명에 따른 유중 전기모터를 도시한 사시도.2 is a perspective view showing an oil-in-water electric motor according to the present invention.

도 3은 도 2의 A-A선 단면도.3 is a cross-sectional view taken along the line A-A of FIG.

도 4는 종래의 전기모터를 나타낸 단면도. 4 is a cross-sectional view showing a conventional electric motor.

<도면의 주요부분에 대항 부호의 설명><Description of the opposite signs in the main part of the drawing>

1 : 오일탱크1: Oil Tank

11 : 커버판    11: cover plate

2 : 펌핑수단2: pumping means

21 : 고정수단    21: fixing means

22 : 펌핑부    22: pumping part

221 : 펌프         221: pump

23 : 배출관    23: discharge pipe

3 : 전기모터3: electric motor

31 : 하우징    31: housing

311 : 고정자         311: stator

32 : 회전축    32: axis of rotation

321 : 회전자         321: rotor

33 : 전,후방 커버판    33: front and rear cover plate

331 : 관통홀, 332 : 베어링         331: through hole, 332: bearing

34 : 접촉실 실링    34: contact seal

35 : 원형링형 실링    35: round ring seal

36 : 냉각수관    36: cooling water pipe

361 : 냉각홀         361: cooling hole

본 발명은 저소음 오일 공급장치용 모터에 관한 것으로, 좀더 구체적으로는 하우징의 외부 둘레 부분에 냉각수가 통과되는 냉각홀을 형성하여 전기모터의 과부하를 방지함은 물론, 하우징과 전,후방 커버판 사이에 실링을 구비하여 전기모터 내부로 오일이 침투되는 것을 방지할 수 있는 저소음 오일 공급장치용 유중 전기모터에 관한 것이다.The present invention relates to a motor for a low noise oil supply apparatus, and more specifically, to form a cooling hole through which the coolant passes through an outer circumference of the housing to prevent overload of the electric motor, as well as between the housing and the front and rear cover plates. The present invention relates to an oil-in-water electric motor for a low noise oil supply device having a sealing to prevent oil from penetrating into the electric motor.

일반적으로 공랭식 모터라 함은 하우징 내부에 구비된 고정자와 회전자에 구동에 의해 열이 발생됨에 따라 하우징 후방에 구비된 냉각팬이 회전되어 하우징 내부에 있는 열을 외부로 배출하는 것을 말하는 것이다.In general, the air-cooled motor refers to the cooling fan provided at the rear of the housing is rotated to discharge the heat inside the housing as heat is generated by the stator and the rotor provided inside the housing.

이에 통상적으로 알려진 공랭식 모터는, 도 4에 도시된 바와 같이, 하우징(100) 내부의 안쪽 둘레부분에 형성된 고정자(200)와, 상기 하우징(100)의 내부에 구비되어 둘레에 회전자(300)가 구비된 회전축(400), 및 상기 회전축(400)의 회전을 지지하기 위한 베어링(500)과, 상기 하우징(100)의 후방에 구비된 냉각팬(600)으로 구성됨을 특징으로 한다.Commonly known air-cooled motor, as shown in Figure 4, the stator 200 formed in the inner peripheral portion inside the housing 100, and the rotor 300 is provided in the interior of the housing 100 Is provided with a rotating shaft 400, and a bearing 500 for supporting the rotation of the rotating shaft 400, and a cooling fan 600 provided in the rear of the housing (100).

그리고 상기와 같이 구성된 공랭식 모터는 오일탱크에 투입하여 전혀 사용할 수 없는 것이다. And the air-cooled motor configured as described above can not be used at all in the oil tank.

이에 본 발명은 오일탱크에 침수되어도 구동될 수 있는 전기모터를 발명한 것으로, 하우징 둘레벽에 냉각수가 통과되는 냉각홀을 구비함으로써, 전기모터의 구동시 발생되는 열을 냉각시켜 전기모터의 과부하를 방지하기 위한 저소음 오일 공급장치용 유중 전기모터를 제공함을 목적이 있다.Accordingly, the present invention invents an electric motor that can be driven even when submerged in an oil tank, and has a cooling hole through which cooling water passes in a peripheral wall of the housing, thereby cooling the heat generated when the electric motor is driven, thereby overloading the electric motor. It is an object of the present invention to provide an oil-in-water electric motor for a low noise oil supply device.

또한 전기모터 하우징과 전,후방 커버 사이에 실링이 구비되어 하우징 내부로 오일이 유입되는 것을 방지하기 위한 목적도 있다.In addition, a sealing is provided between the electric motor housing and the front and rear covers to prevent oil from flowing into the housing.

상기와 같은 목적을 달성하기 위한 본 발명은, 내부 공간에 오일이 채워지며 상부에는 분해가 가능한 커버판이 구비된 오일탱크와, 상기 오일탱크의 내부에 구비되어 내부에 채워진 오일을 오일 배출공간으로 강제 이송시킬 수 있도록 상기 커버판에 고정수단으로 통해 고정되어 있는 회전축을 포함하는 전기모터와 탱크 내의 오일을 강제 이송시키는 펌핑부를 포함하는 펌프 및 상기 펌프로부터 인출되어 배 출공간으로 오일을 공급하는 배출관으로 구성된 펌핑수단을 포함하며; 상기 전기모터는, 전,후방이 개방되며 내부의 안쪽 둘레 부분에 고정자가 구비된 하우징과, 이 하우징의 내부인 고정자의 내측에 전,후방에 돌출되게 구비되어 있고 둘레에는 회전자가 구비되어 있는 회전축과, 상기 하우징의 전,후방을 커버하며 내측에는 상기 회전축을 지지하는 베어링이 구비되어 있고 관통홀을 포함하는 전,후방 커버판과, 상기 하우징의 둘레벽의 내부에 구비되어 냉각수관과 연결되는 냉각홀을 포함함을 특징으로 한다.The present invention for achieving the above object, the oil tank is provided in the inner space and the cover plate is decomposable at the top, and the oil is provided in the interior of the oil tank filled in the oil discharge space A pump including an electric motor including a rotating shaft fixed to the cover plate by a fixing means so as to be transported, a pumping part for forcibly transferring oil in the tank, and a discharge pipe which is drawn out of the pump and supplies oil to the discharge space. A configured pumping means; The electric motor is provided with a housing having a stator at an inner circumferential part of the front and a rear thereof and protruding forward and rear at an inner side of the stator which is inside the housing, and a rotating shaft having a rotor at a circumference thereof. And a front and rear cover plate covering the front and rear sides of the housing and supporting the rotating shaft therein, the front and rear cover plates including through holes, and provided inside the circumferential wall of the housing and connected to the cooling water pipe. It characterized in that it comprises a cooling hole.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 저소음 오일 공급장치용 유중 전기모터를 나타낸 사시도이고, 도 2는 본 발명에 따른 전기모터를 도시한 사시도이며, 도 3은 도 2의 A-A선 단면도이다.1 is a perspective view showing an oil-in-water electric motor for a low noise oil supply apparatus according to the present invention, Figure 2 is a perspective view showing an electric motor according to the present invention, Figure 3 is a cross-sectional view taken along line A-A of FIG.

도면에 도시된 바와 같이 본 발명에 따른 저소음 오일 공급장치용 유중 전기모터는, 내부 공간에 오일이 채워지며 상부에는 분해 가능한 커버판(11)을 포함하는 오일탱크(1)와, 상기 오일탱크(1)의 내부에 채워진 오일을 강제적으로 오일 배출공간에 강제 이송시키는 펌핑수단(2)으로 구성된 저소음 오일 공급장치 중 상기 펌핑수단(2)을 구성하는 전기모터(3)를 개량하여 전기모터(3)의 냉각효율을 향상시키는 구성을 특징으로 한다.As shown in the drawings, an oil-in-water electric motor for a low noise oil supply device according to the present invention includes an oil tank 1 including a cover plate 11 filled with oil in an inner space and degradable thereon, and the oil tank ( The electric motor (3) is improved by improving the electric motor (3) constituting the pumping means (2) of the low noise oil supply device composed of pumping means (2) for forcibly conveying the oil filled in 1) to the oil discharge space. It is characterized by a configuration for improving the cooling efficiency.

그리고, 상기 펌핑수단(2)은, 상기 커버판(11)에 고정수단(21)을 통해 고정되며 회전축(32)을 포함하는 전기모터(3)와, 탱크 내의 오일을 강제 이송시키는 펌 핑부(221)를 포함하는 펌프(22) 및 상기 펌프(22)로부터 인출되어 배출공간으로 오일을 공급하는 배출관(23)으로 구성된다.In addition, the pumping means 2 is fixed to the cover plate 11 through the fixing means 21, the electric motor 3 including a rotating shaft 32 and a pumping part for forcibly transferring the oil in the tank ( A pump 22 including a 221 and the discharge pipe 23 is drawn from the pump 22 to supply oil to the discharge space.

이에 상기 전기모터(3)는, 전,후방이 개방되며 내부의 안쪽 둘레 부분에 고정자(311)가 구비된 하우징(31)과, 이 하우징(31)의 내부인 고정자(311)의 내측에 전후방이 돌출되게 장착되어 있고 둘레에는 회전자(321)가 구비되어 있는 회전축(32)과, 상기 하우징(31)의 전,후방을 커버하며 내측에는 상기 회전축(32)을 지지하는 베어링(332)이 구비되고 관통홀(331)을 포함하는 전,후방 커버판(33)과, 상기 하우징(31)의 둘레벽의 내부에 구비되어 냉각수관(36)과 연결되는 냉각홀(361)을 포함함을 특징으로 한다.Accordingly, the electric motor 3 has a housing 31 having a stator 311 at an inner circumferential portion of the electric motor 3 and a rear side thereof, and a front and rear side inside a stator 311 which is an interior of the housing 31. The rotating shaft 32 is mounted to protrude and the rotor 321 is provided on the periphery, and the bearing 332 which covers the front and rear of the housing 31 and supports the rotating shaft 32 inside And a cooling hole 361 provided in the front and rear cover plates 33 including the through holes 331 and provided in the circumferential wall of the housing 31 and connected to the cooling water pipe 36. It features.

즉 상기 베어링(332)은 회전축(32)의 전,후방에 구비되어 회전축(32)을 흔들림 없이 지지하는 것이다.That is, the bearing 332 is provided at the front and rear of the rotation shaft 32 to support the rotation shaft 32 without shaking.

한편, 상기 전,후방 커버판(33)에 형성된 관통홀(331)의 내측에는 상기 회전축(32)이 밀착되어 회전축(32)을 따라 오일이 전기모터(3) 내부로 공급되는 것을 방지하기 위한 접촉식 실링(34)이 더 구비되는 것이다.On the other hand, the rotating shaft 32 is in close contact with the inside of the through hole 331 formed in the front and rear cover plate 33 to prevent oil from being supplied into the electric motor 3 along the rotating shaft 32. The contact seal 34 is further provided.

또한, 상기 하우징(31)과 전,후방 커버판(33)의 접촉면에는 오일탱크(1)에 채워진 오일의 유입을 방지할 수 있도록 원형링형 실링(35)이 더 구비되는 것이다.In addition, the contact surface of the housing 31 and the front and rear cover plate 33 is further provided with a circular ring-type sealing 35 to prevent the inflow of oil filled in the oil tank (1).

즉 오일탱크 내부에 상기 원형링형 실링(35)이 포함된 전기모터(4)는 오일이 유입되는 것을 방지함으로써 전기모터의 사용 중 오일의 유입으로 인하여 성능이 저하 및 고장이 발생되는 것을 예방할 수 있는 것이다.That is, the electric motor 4 including the circular ring-type seal 35 inside the oil tank prevents oil from flowing in, thereby preventing performance degradation and failure from occurring due to oil inflow during use of the electric motor. will be.

또한, 상기 하우징(31)의 둘레 부분에 구비되어 냉각수를 공급하는 냉각수관 (36)과 연결된 냉각홀(361)은, 냉각 면적으로 최대화 할 수 있도록 하우징(31)의 둘레벽 전체에 나선형으로 형성되는 것이다.In addition, the cooling hole 361 provided in the peripheral portion of the housing 31 and connected to the cooling water pipe 36 for supplying the cooling water is spirally formed on the entire circumferential wall of the housing 31 so as to maximize the cooling area. Will be.

즉 전기모터(3)가 구동되면 고정자(311)와 회전자(321)에서 과부하가 발생되고 이로 인하여 열이 발생된다. That is, when the electric motor 3 is driven, an overload is generated in the stator 311 and the rotor 321, thereby generating heat.

따라서 전기모터(3)의 보호를 위해 상기 하우징(31)에 구비된 냉각수관(36)을 통해 냉각수를 상기 냉각홀(361)에 공급함으로써 하우징(31) 내부에 열을 흡수하여 전기모터(3)의 과부하를 방지하는 것이다.Therefore, by supplying cooling water to the cooling hole 361 through the cooling water pipe 36 provided in the housing 31 to protect the electric motor 3, the electric motor 3 absorbs heat in the housing 31. ) To prevent overload.

이하 상기와 같이 구성된 본 발명에 따른 저소음 오일 공급장치용 유중 전기모터의 작동 관계를 설명하면 다음과 같다. Referring to the operation relationship of the oil-in-water electric motor for a low noise oil supply apparatus according to the present invention configured as described above are as follows.

도 1 내지 도 3에 도시된 바와 같이, 오일이 채워진 오일탱크(1)의 내부에 구비되어 있는 전기모터(3)에 전원을 인가하게 되면 하우징(31)의 내측에 구비된 고정자(311)와 회전축(32)의 외측에 형성된 회전자(321)의 사이에서 자기력이 형성됨으로써 회전축(32)이 회전되는 작동을 수행한다.As shown in FIGS. 1 to 3, when power is applied to the electric motor 3 provided in the oil tank 1 filled with oil, the stator 311 provided inside the housing 31 and Magnetic force is formed between the rotor 321 formed on the outer side of the rotating shaft 32 to perform the operation of rotating the rotating shaft 32.

그리고 상기와 같이 전기모터(3)를 구동함과 동시에 상기 하우징(31)의 둘레벽에 형성된 나선형의 냉각홀(361)에 냉각수관(36)의 개방을 통해 냉각수를 유입한다.As described above, the coolant is introduced through the opening of the coolant pipe 36 into the spiral cooling hole 361 formed in the circumferential wall of the housing 31 while driving the electric motor 3.

그러면 냉각홀(361)로 유입되는 냉각수로 인하여 하우징(31)의 전체적인 온도가 하강되고 하강된 열은 고정자(311) 및 회전자(321)로 전도됨으로써, 고정자(311)와 회전자(321)의 온도를 하강시켜 전기모터(3)에서 과부하가 생기는 현상을 사전에 예방할 수 있는 것이다. Then, the overall temperature of the housing 31 is lowered due to the coolant flowing into the cooling hole 361, and the lowered heat is conducted to the stator 311 and the rotor 321, thereby stator 311 and the rotor 321. By lowering the temperature of the electric motor (3) it is possible to prevent in advance the phenomenon of occurrence of overload.

또한, 상기 전,후방 커버판(33)에 형성된 관통홀(331)의 내측에는 접촉식 실링(34)이 더 구비됨으로써, 회전축(32)을 따라 오일이 전기모터(3) 내부로 공급되는 것을 방지할 수 있는 것이다.In addition, a contact seal 34 is further provided inside the through hole 331 formed in the front and rear cover plates 33, so that oil is supplied into the electric motor 3 along the rotation shaft 32. It can be prevented.

상술한 바와 같이 본 발명은, 전기모터에 발생되는 열을 신속히 냉각시켜 전기모터의 과부하를 방지함으로써 기계적 성능을 향상시키는 저소음 오일 공급장치용 유중 전기모터를 제공할 수 있는 효과가 있다.As described above, the present invention has an effect of providing an oil-in-water electric motor for a low noise oil supply device which improves mechanical performance by rapidly cooling heat generated in the electric motor to prevent overload of the electric motor.

또한 전기모터 하우징과 전,후방 커버 사이에 실링이 구비되어 하우징 내부로 오일이 유입되는 것을 방지함으로써, 전기모터의 작동중 기능이 저하되는 것을 사전에 예방할 수 있는 것이다.In addition, a sealing is provided between the electric motor housing and the front and rear covers to prevent oil from flowing into the housing, thereby preventing the function of the electric motor from deteriorating in advance.

본 발명은 첨부된 도면을 참조하여 바람직한 실시예를 중심으로 기술되었지만 당업자라면 이러한 기재로부터 본 발명의 범주를 벗어남이 없이 다양한 자명한 변형이 가능하다는 것은 명백하다. 따라서 본 발명의 범주는 이러한 많은 변형 예들을 포함하도록 기술된 청구범위에 의해서 해석되어져야 한다.Although the present invention has been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that various obvious modifications are possible without departing from the scope of the invention from this description. Therefore, the scope of the invention should be construed by the claims described to include many such variations.

Claims (4)

내부 공간에 오일이 채워지며 상부에는 분해가 가능한 커버판(11)이 구비된 오일탱크(1)와, 상기 오일탱크(1)의 내부에 구비되어 내부에 채워진 오일을 오일 배출공간으로 강제 이송시킬 수 있도록 상기 커버판(11)에 고정수단(21)으로 통해 고정되어 있는 회전축(32)을 포함하는 전기모터(3)와 오일 탱크(1) 내의 오일을 강제 이송시키는 펌핑부(221)를 포함하는 펌프(22) 및 상기 펌프(22)로부터 인출되어 배출공간으로 오일을 공급하는 배출관(23)으로 구성된 펌핑수단(2)을 포함하며;An oil tank (1) having an inner space filled with oil and having a cover plate (11) that can be disassembled at an upper portion thereof, and an oil tank (1) provided inside the oil tank (1), is forcibly transferred to an oil discharge space. It includes an electric motor 3 including a rotating shaft 32 is fixed to the cover plate 11 by a fixing means 21 to the cover plate 11 and a pumping part 221 for forcibly transferring the oil in the oil tank (1) Pumping means (2) consisting of a pump (22) and a discharge pipe (23) which is drawn out from the pump (22) and supplies oil to the discharge space; 상기 전기모터(3)는, 전,후방이 개방되며 내부의 안쪽 둘레 부분에 고정자(311)가 구비된 하우징(31)과, 이 하우징(31)의 내부인 고정자(311)의 내측에 전,후방에 돌출되게 구비되어 있고 둘레에는 회전자(321)가 구비되어 있는 회전축(32)과, 상기 하우징(31)의 전,후방을 커버하며 내측에는 상기 회전축(32)을 지지하는 베어링(332)이 구비되어 있고 관통홀(331)을 포함하는 전,후방 커버판(33)과, 상기 하우징(31)의 둘레벽의 내부에 구비되어 냉각수관(36)과 연결되는 냉각홀(361)을 포함함을 특징으로 하는 저소음 오일 공급장치용 유중 전기모터. The electric motor (3) is a front and rear, the housing 31 is provided with a stator (311) in the inner circumferential portion of the inside, and the front, inside the stator (311) that is the interior of the housing 31, Rotating shaft 32 is provided to protrude in the rear and the rotor 321 is provided on the periphery, and the bearing 332 to cover the front and rear of the housing 31, the inner side supporting the rotating shaft 32 And front and rear cover plates 33 including through holes 331 and cooling holes 361 provided in the circumferential wall of the housing 31 and connected to the cooling water pipe 36. Oil-in-water electric motor for low noise oil supply device characterized in that. 제 1항에 있어서, 상기 전,후방 커버판(33)에 형성된 관통홀(331)의 내측에는, The inside of the through hole 331 formed in the front and rear cover plate 33, 상기 회전축(32)이 밀착되어 회전축(32)을 따라 전기모터(3) 내부로 오일이 공급되는 것을 방지하도록 접촉식 실링(34)이 더 구비됨을 특징으로 하는 저소음 오일 공급장치용 유중 전기모터.The oil-in-water electric motor for a low noise oil supply device, characterized in that the contact shaft (34) is further provided to prevent the oil from being supplied into the electric motor (3) in close contact with the rotary shaft (32). 제 1항 또는 제 2항에 있어서, 상기 하우징(31)과 전,후방 커버판(33)의 접촉면에는,The contact surface between the housing 31 and the front and rear cover plates 33, 오일의 유입을 방지할 수 있도록 원형링형 실링(35)이 더 구비됨을 특징으로 하는 저소음 오일 공급장치용 유중 전기모터.An oil-in-water electric motor for a low noise oil supply device, characterized in that a circular ring type seal (35) is further provided to prevent the inflow of oil. 제 1항에 있어서, 상기 냉각홀(361)은,The method of claim 1, wherein the cooling hole 361, 상기 하우징(31)의 둘레벽 내부에 나선형으로 형성됨을 특징으로 하는 저소음 오일 공급장치용 유중 전기모터.An oil-in-water electric motor for a low noise oil supply device, characterized in that it is formed spirally in the circumferential wall of the housing (31).
KR1020050079633A 2005-08-29 2005-08-29 A low noise hydraulic power unit KR100707487B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020050079633A KR100707487B1 (en) 2005-08-29 2005-08-29 A low noise hydraulic power unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020050079633A KR100707487B1 (en) 2005-08-29 2005-08-29 A low noise hydraulic power unit

Publications (2)

Publication Number Publication Date
KR20070027809A true KR20070027809A (en) 2007-03-12
KR100707487B1 KR100707487B1 (en) 2007-04-13

Family

ID=38100773

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020050079633A KR100707487B1 (en) 2005-08-29 2005-08-29 A low noise hydraulic power unit

Country Status (1)

Country Link
KR (1) KR100707487B1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011159575A2 (en) * 2010-06-14 2011-12-22 Remy Technologies, Llc Electric machine cooling system and method
US8269383B2 (en) 2010-06-08 2012-09-18 Remy Technologies, Llc Electric machine cooling system and method
WO2013009811A2 (en) * 2011-07-11 2013-01-17 Remy Technologies, Llc Cooling system and method for electric machines
CN103001397A (en) * 2012-10-31 2013-03-27 苏州萃智新技术开发有限公司 Water cooling device for motor
US8552600B2 (en) 2010-06-14 2013-10-08 Remy Technologies, Llc Potted end turns of an electric machine
US8692425B2 (en) 2011-05-10 2014-04-08 Remy Technologies, Llc Cooling combinations for electric machines
US8975792B2 (en) 2011-09-13 2015-03-10 Remy Technologies, Llc Electric machine module cooling system and method
US9041260B2 (en) 2011-07-08 2015-05-26 Remy Technologies, Llc Cooling system and method for an electronic machine
US9048710B2 (en) 2011-08-29 2015-06-02 Remy Technologies, Llc Electric machine module cooling system and method
US9054565B2 (en) 2010-06-04 2015-06-09 Remy Technologies, Llc Electric machine cooling system and method
US9099900B2 (en) 2011-12-06 2015-08-04 Remy Technologies, Llc Electric machine module cooling system and method
US9331543B2 (en) 2012-04-05 2016-05-03 Remy Technologies, Llc Electric machine module cooling system and method
US10069375B2 (en) 2012-05-02 2018-09-04 Borgwarner Inc. Electric machine module cooling system and method
US11552523B2 (en) * 2020-05-28 2023-01-10 Honeywell International Inc. Conformal cooling devices for rotating generator elements and additive manufacturing processes for fabricating the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3261801B2 (en) * 1993-04-27 2002-03-04 富士電機株式会社 Rotating electric machine with liquid-cooled jacket
KR100446791B1 (en) * 1997-12-27 2004-11-10 발레오전장시스템스코리아 주식회사 Water cooled motor eliminating necessity of communicating coolant inlet/outlet ports of packing and support rim

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9054565B2 (en) 2010-06-04 2015-06-09 Remy Technologies, Llc Electric machine cooling system and method
US8269383B2 (en) 2010-06-08 2012-09-18 Remy Technologies, Llc Electric machine cooling system and method
WO2011159575A3 (en) * 2010-06-14 2012-04-05 Remy Technologies, Llc Electric machine cooling system and method
WO2011159575A2 (en) * 2010-06-14 2011-12-22 Remy Technologies, Llc Electric machine cooling system and method
US8552600B2 (en) 2010-06-14 2013-10-08 Remy Technologies, Llc Potted end turns of an electric machine
US8692425B2 (en) 2011-05-10 2014-04-08 Remy Technologies, Llc Cooling combinations for electric machines
US9041260B2 (en) 2011-07-08 2015-05-26 Remy Technologies, Llc Cooling system and method for an electronic machine
WO2013009811A2 (en) * 2011-07-11 2013-01-17 Remy Technologies, Llc Cooling system and method for electric machines
WO2013009811A3 (en) * 2011-07-11 2013-05-02 Remy Technologies, Llc Cooling system and method for electric machines
US9048710B2 (en) 2011-08-29 2015-06-02 Remy Technologies, Llc Electric machine module cooling system and method
US8975792B2 (en) 2011-09-13 2015-03-10 Remy Technologies, Llc Electric machine module cooling system and method
US9099900B2 (en) 2011-12-06 2015-08-04 Remy Technologies, Llc Electric machine module cooling system and method
US9331543B2 (en) 2012-04-05 2016-05-03 Remy Technologies, Llc Electric machine module cooling system and method
US10069375B2 (en) 2012-05-02 2018-09-04 Borgwarner Inc. Electric machine module cooling system and method
CN103001397A (en) * 2012-10-31 2013-03-27 苏州萃智新技术开发有限公司 Water cooling device for motor
US11552523B2 (en) * 2020-05-28 2023-01-10 Honeywell International Inc. Conformal cooling devices for rotating generator elements and additive manufacturing processes for fabricating the same

Also Published As

Publication number Publication date
KR100707487B1 (en) 2007-04-13

Similar Documents

Publication Publication Date Title
KR100707487B1 (en) A low noise hydraulic power unit
JP6104566B2 (en) Electric water pump
JP5155113B2 (en) underwater pump
KR102108194B1 (en) Motor having function of cooling
US7429809B2 (en) Driving motor, especially for a pump
KR101712653B1 (en) Disposer
US20160312784A1 (en) Submersible pump with cooling system for motor through surrounding water
US20160290364A1 (en) Electric water pump
KR101784909B1 (en) Apparatus for cooling submerged motor pump
JP5552402B2 (en) Pump coolant circulation structure
KR200433323Y1 (en) A waterproof-type motor pump for self-cooling
JP2010090776A (en) Electric pump
JP2010144620A (en) Electric pump
KR20100030537A (en) Underwater motor pump
KR101371605B1 (en) Coupling devices for underwater pump
JP2009103077A (en) Impeller for sewage pump, and sewage pump
KR100437861B1 (en) Submersible sewage pumps
KR100648895B1 (en) Underwater pump
KR200248441Y1 (en) Submersible sewage pumps
CN210297465U (en) High-efficient heat dissipation type permanent magnet brushless motor suitable for boats and ships
KR101765143B1 (en) submerged pump
JPH11241698A (en) Dip type pump
CN107612224B (en) Circulation cooling type explosion-proof motor
KR200393376Y1 (en) Underwater pump
CN216564766U (en) Driving structure of fan

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20120724

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee