KR102132413B1 - Cooling device for motor - Google Patents

Cooling device for motor Download PDF

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Publication number
KR102132413B1
KR102132413B1 KR1020140028632A KR20140028632A KR102132413B1 KR 102132413 B1 KR102132413 B1 KR 102132413B1 KR 1020140028632 A KR1020140028632 A KR 1020140028632A KR 20140028632 A KR20140028632 A KR 20140028632A KR 102132413 B1 KR102132413 B1 KR 102132413B1
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KR
South Korea
Prior art keywords
cooling
bearing
contact
unit
motor
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KR1020140028632A
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Korean (ko)
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KR20150106287A (en
Inventor
박병섭
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하이젠모터 주식회사
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Priority to KR1020140028632A priority Critical patent/KR102132413B1/en
Publication of KR20150106287A publication Critical patent/KR20150106287A/en
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    • 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
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C37/00—Cooling of bearings
    • F16C37/007—Cooling of bearings of rolling bearings
    • 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
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • 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
    • H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
    • H02K9/18—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the external part of the closed circuit comprises a heat exchanger structurally associated with the machine casing
    • 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Motor Or Generator Frames (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

본 발명은 모터용 냉각장치에 관한 것으로, 하우징부와, 하우징부에 내장되어 회전되는 회전축부와, 회전축부를 지지하는 베어링부와, 베어링부와 접촉되고 베어링부를 냉각시키는 냉각부를 포함하여, 베어링부의 열화에 의한 손상을 방지할 수 있다.The present invention relates to a cooling device for a motor, including a housing part, a rotating shaft part built into the housing part and rotating, a bearing part supporting the rotating shaft part, and a cooling part contacting the bearing part and cooling the bearing part, Damage due to deterioration can be prevented.

Description

모터용 냉각장치{COOLING DEVICE FOR MOTOR}Cooling device for motor {COOLING DEVICE FOR MOTOR}

본 발명은 모터용 냉각장치에 관한 것으로서, 보다 상세하게는 모터축을 지지하는 베어링을 냉각시켜 베어링의 수명을 연장시키는 모터용 냉각장치에 관한 것이다.
The present invention relates to a cooling device for a motor, and more particularly, to a cooling device for a motor that cools a bearing supporting a motor shaft to extend the life of the bearing.

일반적으로 모터는 전력을 받아서 회전하고, 그 축에 회전력을 발생시키는 동력기계를 의미하며, 공급되는 전기 방식에 따라 직류용, 단상 교류용, 3상 교류용 등이 있다.Generally, a motor means a power machine that rotates by receiving electric power and generates a rotational force on its axis, and there are direct current, single-phase alternating current, and three-phase alternating current depending on the supplied electric method.

최근에는 배터리의 용량 증대 및 모터의 출력 증대로 인해, 모터가 선박이나 자동차에 구동력을 제공하고 있다. 이러한 모터는, 베어링에 지지되고 하우징에 장착되는 모터축과, 모터축에 결합되는 회전자와, 하우징에 장착되는 코일을 포함한다. 한편, 정류자와 접속된 브러시에 의해 회전자에 전원이 인가되면 모터축이 회전된다.Recently, due to the increase in the capacity of the battery and the output of the motor, the motor provides a driving force to a ship or a vehicle. The motor includes a motor shaft supported on a bearing and mounted on the housing, a rotor coupled to the motor shaft, and a coil mounted on the housing. Meanwhile, when power is applied to the rotor by a brush connected to the commutator, the motor shaft is rotated.

종래에는 코일의 열은 하우징과의 전도에 의해 배출되지만, 회전자와 베어링에서 발생하는 열은 회전자를 통해 내부 순환공기를 가열한 후 대류에 의하여 외기로 전달되거나 회전축을 통하여 전도된다. 이때, 내부공기와 베어링이 가열되어 베어링 윤활용 그리스가 열화될 수 있으며, 그리스의 열화로 인해 베어링이 손상되는 문제점이 있다. 따라서, 이를 개선할 필요성이 요청된다.Conventionally, the heat of the coil is discharged by conduction with the housing, but the heat generated by the rotor and the bearing is transferred to the outside air by convection after heating the internal circulating air through the rotor or is conducted through the rotating shaft. At this time, the internal air and the bearing are heated, and the grease for lubrication of the bearing may deteriorate, and there is a problem in that the bearing is damaged due to deterioration of the grease. Therefore, there is a need to improve this.

본 발명의 배경기술은 대한민국 공개특허공보 제2011-0018682호(2011.02.24 공개, 발명의 명칭 : 휴대용 유압식 철근절단기의 펌프구동장치)에 개시되어 있다.
Background art of the present invention is disclosed in Republic of Korea Patent Publication No. 2011-0018682 (published on February 24, 2011, the name of the invention: a pump driving device for a portable hydraulic rebar cutter).

본 발명은 상기와 같은 문제점들을 개선하기 위해 안출된 것으로서, 베어링을 신속하게 냉각하여 베어링의 손상을 방지하는 모터용 냉각장치를 제공하는데 그 목적이 있다.
The present invention has been devised to improve the above problems, and an object thereof is to provide a cooling device for a motor that rapidly cools a bearing to prevent damage to the bearing.

본 발명에 따른 모터용 냉각장치는: 하우징부; 상기 하우징부에 내장되어 회전되는 회전축부; 상기 회전축부를 지지하는 베어링부; 및 상기 베어링부와 접촉되고, 상기 베어링부를 냉각시키는 냉각부를 포함하는 것을 특징으로 한다.The cooling device for a motor according to the present invention includes: a housing part; A rotating shaft part built into the housing part and rotated; A bearing part supporting the rotating shaft part; And a cooling unit in contact with the bearing unit and cooling the bearing unit.

상기 냉각부는: 상기 베어링부의 외측과 접촉되고 냉각수가 이동되는 접촉부; 상기 접촉부에 연통되어 냉각수의 출입을 안내하는 냉각관부; 및 상기 냉각관부에 결합되고, 상기 하우징부에 고정 설치되어 상기 냉각관부를 지지하는 고정부를 포함하는 것을 특징으로 한다.The cooling unit includes: a contact unit in contact with the outside of the bearing unit and the cooling water is moved; A cooling pipe part communicating with the contact part to guide the cooling water in and out; And a fixing part coupled to the cooling tube part and fixedly installed in the housing part to support the cooling tube part.

상기 냉각부는: 상기 접촉부의 외측면을 따라 돌출되고, 공기와 접촉되는 냉각핀부를 더 포함하는 것을 특징으로 한다.The cooling unit: is characterized in that it further comprises a cooling fin portion protruding along the outer surface of the contact portion, and in contact with the air.

상기 냉각부는: 상기 접촉부에서 연장되고, 상기 베어링부에 접촉되며, 결합홀부가 형성되는 결합판부; 및 상기 결합홀부를 통해 상기 베어링부에 나사 결합되어, 상기 결합판부를 고정시키는 나사부를 더 포함하는 것을 특징으로 한다.The cooling unit includes: a coupling plate portion extending from the contact portion, contacting the bearing portion, and forming a coupling hole portion; And it is characterized in that it further comprises a screw portion that is screwed to the bearing portion through the coupling hole portion to secure the coupling plate portion.

상기 냉각부는: 상기 냉각관부를 통해 이동되는 냉각수와 열교환되는 열교환부를 더 포함하는 것을 특징으로 한다.
The cooling unit is characterized in that it further comprises a heat exchange unit for heat exchange with the cooling water moving through the cooling tube unit.

본 발명에 따른 모터용 냉각장치는 냉각부가 베어링부를 냉각시켜 베어링부의 손상을 방지할 수 있다.In the cooling device for a motor according to the present invention, the cooling part cools the bearing part to prevent damage to the bearing part.

본 발명에 따른 모터용 냉각장치는 접촉부에 냉각핀부가 형성되어 접촉부를 냉각시킬 수 있다.In the cooling device for a motor according to the present invention, a cooling fin portion is formed in the contact portion to cool the contact portion.

본 발명에 따른 모터용 냉각장치는 접촉부를 냉각시킨 냉각수가 열교환부에 의해 열교환되어 접촉부를 재냉각시킬 수 있다.
In the cooling device for a motor according to the present invention, the cooling water that has cooled the contact portion is heat-exchanged by the heat exchange portion to re-cool the contact portion.

도 1은 본 발명의 일 실시예에 따른 모터용 냉각장치를 개략적으로 나타내는 도면이다.
도 2는 본 발명의 일 실시예에 따른 모터용 냉각장치에서 냉각부를 개략적으로 나타내는 도면이다.
도 3은 본 발명의 일 실시예에 따른 모터용 냉각장치에서 냉각수의 경로를 개략적으로 나타내는 도면이다.1 is a view schematically showing a cooling device for a motor according to an embodiment of the present invention.
2 is a view schematically showing a cooling unit in a motor cooling apparatus according to an embodiment of the present invention.
3 is a view schematically showing a path of cooling water in a motor cooling apparatus according to an embodiment of the present invention.

이하, 첨부된 도면들을 참조하여 본 발명에 따른 모터용 냉각장치의 실시예를 설명한다. 이러한 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다. 또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로써, 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.
Hereinafter, an embodiment of a cooling device for a motor according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or practice. Therefore, definitions of these terms should be made based on the contents throughout this specification.

도 1은 본 발명의 일 실시예에 따른 모터용 냉각장치를 개략적으로 나타내는 도면이다. 도 1을 참조하면, 본 발명의 일 실시예에 따른 모터용 냉각장치(1)는 하우징부(10)와, 회전축부(20)와, 베어링부(30)와 냉각부(40)를 포함한다. 1 is a view schematically showing a cooling device for a motor according to an embodiment of the present invention. Referring to FIG. 1, the cooling device 1 for a motor according to an embodiment of the present invention includes a housing part 10, a rotating shaft part 20, a bearing part 30, and a cooling part 40. .

하우징부(10)는 모터의 외관을 형성한다. 하우징부(10)에는 내부 열을 배출하기 위한 방출홀과, 방출홀이 형성될 수 있다. 그리고, 하우징부(10)는 자체 내부 열을 신속하게 배출하기 위해 열전도성이 높은 재질을 포함하여 성형될 수 있다.The housing part 10 forms the appearance of the motor. A discharge hole for discharging internal heat and a discharge hole may be formed in the housing part 10. In addition, the housing part 10 may be molded by including a material having high thermal conductivity in order to quickly discharge its own internal heat.

회전축부(20)는 하우징부(10)에 내장된다. 회전축부(20)에는 회전자(21)가 장착되고, 하우징부(10)에는 고정자(11)가 배치된다. 한편, 정류자(13)와 접속되는 브러시(23)를 통해 회전자(21)에 전원이 인가되면, 회전축부(20)가 회전될 수 있다.The rotating shaft part 20 is embedded in the housing part 10. The rotor 21 is mounted on the rotating shaft portion 20, and the stator 11 is disposed on the housing portion 10. Meanwhile, when power is applied to the rotor 21 through the brush 23 connected to the commutator 13, the rotating shaft portion 20 may be rotated.

베어링부(30)는 회전축부(20)를 지지한다. 베어링부(30)는 회전축부(20)의 양단부를 각각 지지하여, 회전축부(20)의 원활한 회전을 유도한다. 일 예로, 베어링부(30)는 회전축부(20)를 감싸는 원띠 형상의 축베어링(31)과, 축베어링(31)을 지지하고 하우징부(10)와 결합되는 브라켓(32)을 포함한다.The bearing part 30 supports the rotating shaft part 20. The bearing unit 30 supports both ends of the rotating shaft unit 20, thereby inducing smooth rotation of the rotating shaft unit 20. For example, the bearing portion 30 includes a shaft-shaped shaft bearing 31 surrounding the rotating shaft portion 20, and a bracket 32 supporting the shaft bearing 31 and coupled with the housing portion 10.

냉각부(40)는 베어링부(30)와 접촉되어 베어링부(30)를 냉각시킨다. 일 예로, 냉각부(40)는 브라켓(32)과 접촉되어 브라켓(32)을 냉각시켜 줌으로써, 브라켓(32)과 접촉되는 축베어링(31)을 냉각시킬 수 있다.The cooling part 40 is in contact with the bearing part 30 to cool the bearing part 30. For example, the cooling unit 40 may be in contact with the bracket 32 to cool the bracket 32, thereby cooling the shaft bearing 31 in contact with the bracket 32.

도 2는 본 발명의 일 실시예에 따른 모터용 냉각장치에서 냉각부를 개략적으로 나타내는 도면이다. 도 1과 도 2를 참조하면, 본 발명의 일 실시예에 따른 냉각부(40)는 접촉부(41)와, 냉각관부(42)와, 고정부(43)를 포함한다.2 is a view schematically showing a cooling unit in a motor cooling apparatus according to an embodiment of the present invention. 1 and 2, the cooling unit 40 according to an embodiment of the present invention includes a contact portion 41, a cooling pipe portion 42, and a fixing portion 43.

접촉부(41)는 베어링부(30)의 외측과 접촉된다. 일 예로, 접촉부(41)는 원띠 형상을 하고, 브라켓(32)은 접촉부(41)에 삽입되어 접촉된 상태를 유지한다. 이때, 브라켓(32)에 형성되는 결합돌기(33)에 접촉부(41)가 걸려 브라켓(32)의 삽입위치가 설정될 수 있다. 접촉부(41)의 내부에는 냉각유로가 형성되고, 냉각수가 냉각유로를 따라 이동된다.The contact portion 41 is in contact with the outside of the bearing portion 30. For example, the contact portion 41 has a circular strip shape, and the bracket 32 is inserted into the contact portion 41 to maintain contact. At this time, the contact portion 41 is hung on the engaging projection 33 formed on the bracket 32 so that the insertion position of the bracket 32 can be set. A cooling flow path is formed inside the contact portion 41, and cooling water is moved along the cooling flow path.

냉각관부(42)는 접촉부(41)에 연통되어 냉각수의 출입을 안내한다. 일 예로, 냉각관부(42)는 접촉부(41)에 일단부가 연통되어 냉각수를 접촉부(41)로 안내하는 입수관(421)과, 접촉부(41)에 일단부가 연통되어 접촉부(41)에서 배출되는 냉각수를 안내하는 출수관(422)을 포함한다.The cooling pipe part 42 communicates with the contact part 41 to guide the cooling water in and out. For example, the cooling pipe part 42 has one end communicated with the contact portion 41, and the inlet pipe 421 guiding the cooling water to the contact portion 41 and the one end portion communicating with the contact portion 41 and discharged from the contact portion 41 It includes a water outlet pipe 422 to guide the cooling water.

고정부(43)는 냉각관부(42)에 결합되고, 하우징부(10)에 고정 설치되어 냉각관부(42)를 지지한다. 일 예로, 고정부(43)는 하우징부(10)에 나사 결합되고, 냉각관부(42)와 용접될 수 있다. 그 외, 고정부(43)는 냉각관부(42)를 감싸도록 형성되어 하우징부(10)에 결합되어도 무방하다. The fixing portion 43 is coupled to the cooling pipe portion 42 and is fixedly installed in the housing portion 10 to support the cooling pipe portion 42. For example, the fixing part 43 is screwed to the housing part 10 and may be welded to the cooling tube part 42. In addition, the fixing part 43 is formed to surround the cooling pipe part 42 and may be coupled to the housing part 10.

본 발명의 일 실시예에 따른 냉각부(40)는 냉각핀부(44)를 더 포함할 수 있다. 냉각핀부(44)는 접촉부(41)의 외측면을 따라 돌출되고, 공기와 접촉되어 접촉부(41)의 냉각을 유도한다. 일 예로, 원띠 형상을 갖는 접촉부(41)의 외주면을 따라 복수개의 냉각핀부(44)가 형성된다. 냉각핀부(44)는 접촉부(41)와 일체로 성형되며, 열전도율이 높은 금속재질을 포함하여 이루어질 수 있다.The cooling unit 40 according to an embodiment of the present invention may further include a cooling fin unit 44. The cooling fin portion 44 protrudes along the outer surface of the contact portion 41 and is in contact with air to induce cooling of the contact portion 41. For example, a plurality of cooling fins 44 are formed along the outer circumferential surface of the contact portion 41 having a circular band shape. The cooling fin part 44 is integrally molded with the contact part 41, and may be formed of a metal material having high thermal conductivity.

본 발명의 일 실시예에 따른 냉각부(40)는 결합판부(45)와 나사부(46)를 더 포함할 수 있다. 결합판부(45)는 접촉부(41)에서 연장되고 베어링부(30)에 접촉되며, 결합홀부(451)가 형성된다. 일 예로, 결합판부(45)는 접촉부(41)의 외주면 가장자리에서 돌출되도록 원띠 형상을 하고, 브라켓(32)의 결합돌기(33)와 마주보도록 접촉된다. 나사부(46)는 결합홀부(451)를 통해 베어링부(30)에 나사 결합되어 결합판부(45)를 고정시킨다. The cooling unit 40 according to an embodiment of the present invention may further include a coupling plate portion 45 and a screw portion 46. The engaging plate portion 45 extends from the contact portion 41 and contacts the bearing portion 30, and the engaging hole portion 451 is formed. For example, the engaging plate portion 45 has a circular shape to protrude from the edge of the outer circumferential surface of the contact portion 41, and is in contact with the engaging projection 33 of the bracket 32. The screw portion 46 is screwed to the bearing portion 30 through the coupling hole portion 451 to fix the coupling plate portion 45.

도 3은 본 발명의 일 실시예에 따른 모터용 냉각장치에서 냉각수의 경로를 개략적으로 나타내는 도면이다. 도 1 내지 도 3을 참조하면, 본 발명의 일 실시예에 따른 냉각부(40)는 열교환부(47)를 더 포함할 수 있다. 열교환부(47)는 냉각관부(43)를 통해 이동되는 냉각수와 열교환된다. 일 예로, 열교환부(47)는 입수관(421)과 출수관(422)의 타단부에 각각 연통되고, 출수관(422)을 통해 유입되는 냉각수를 냉각시켜 입수관(421)으로 안내한다. 열교환부(47)로는 외부에 노출되고 공기와 접촉되어 냉각기능을 수행하는 히트싱크가 될 수 있다. 그 외, 열교환부(47)로는 가열된 냉각수를 냉각시킬 수 있는 다양한 부품 채택이 가능하다. 한편, 입수관(421) 또는 출수관(422)는 냉각수를 강제로 이동시키기 위한 펌프가 구비될 수 있다.
3 is a view schematically showing a path of cooling water in a motor cooling apparatus according to an embodiment of the present invention. 1 to 3, the cooling unit 40 according to an embodiment of the present invention may further include a heat exchange unit 47. The heat exchange part 47 is heat exchanged with the cooling water moved through the cooling tube part 43. For example, the heat exchange unit 47 communicates with the other ends of the inlet pipe 421 and the outlet pipe 422, and cools the cooling water flowing through the outlet pipe 422 to guide the inlet pipe 421. The heat exchanger 47 may be a heat sink exposed to the outside and in contact with air to perform a cooling function. In addition, various components capable of cooling the heated cooling water may be adopted as the heat exchange unit 47. On the other hand, the inlet pipe 421 or the outlet pipe 422 may be provided with a pump for forcibly moving the cooling water.

상기와 같은 구조를 갖는 본 발명의 일 실시예에 따른 모터용 냉각장치의 작용과 효과를 설명하면 다음과 같다.When explaining the operation and effect of the cooling device for a motor according to an embodiment of the present invention having the above structure is as follows.

회전축부(20)가 축베어링(31)에 삽입되어 축베어링(31)에 회전 가능하도록 지지되고, 브라켓(32)이 축베어링(31)과 결합되어 축베어링(31)의 유동을 제한한다. 그리고, 접촉부(41)에 브라켓(32)이 삽입되고, 결합판부(45)가 결합돌기(33)에 밀착된 상태에서 나사부(46)에 의해 결합돌기(33)에 고정된다.The rotating shaft portion 20 is inserted into the shaft bearing 31 to be rotatably supported by the shaft bearing 31, and the bracket 32 is combined with the shaft bearing 31 to limit the flow of the shaft bearing 31. Then, the bracket 32 is inserted into the contact portion 41 and is fixed to the engaging projection 33 by the screw 46 while the engaging plate portion 45 is in close contact with the engaging projection 33.

상기한 상태에서, 입수관(421)을 통해 접촉부(41)에 유입된 냉각수는 접촉부(41)를 냉각시키면서 가열되어 출수관(422)으로 배출되고, 열교환부(47)를 통과하면서 재냉각되어 입수관(421)을 통해 접촉부(41)에 유입된다.In the above-described state, the cooling water flowing into the contact portion 41 through the inlet pipe 421 is heated while cooling the contact portion 41 and discharged to the outlet pipe 422, and is re-cooled while passing through the heat exchange portion 47. It flows into the contact part 41 through the water intake pipe 421.

냉각수에 의해 접촉부(41)가 냉각되면, 접촉부(41)와 접촉된 브라켓(32)과, 브라켓(32)과 접촉되고 회전축부(20)의 회전시 과열되는 축베어링(31)이 냉각된다. 축베어링(31)이 냉각되면, 축베어링(31)에 주입된 그리스의 열화현상이 발생하지 않으므로, 축베어링(31)의 사용수명이 연장될 수 있다.When the contact portion 41 is cooled by the cooling water, the bracket 32 in contact with the contact portion 41 and the shaft bearing 31 that is in contact with the bracket 32 and is overheated when the rotating shaft portion 20 rotates are cooled. When the shaft bearing 31 is cooled, the deterioration of grease injected into the shaft bearing 31 does not occur, so the service life of the shaft bearing 31 can be extended.

본 발명의 일 실시예에 따른 모터용 냉각장치(1)는 냉각부(40)가 베어링부(30)를 냉각시켜 베어링부(30)의 손상을 방지할 수 있다.In the cooling device 1 for a motor according to an embodiment of the present invention, the cooling unit 40 may cool the bearing unit 30 to prevent damage to the bearing unit 30.

본 발명의 일 실시예에 따른 모터용 냉각장치(1)는 접촉부(41)에 냉각핀부(44)가 형성되어 접촉부(41)를 냉각시킬 수 있다.In the cooling device 1 for a motor according to an embodiment of the present invention, a cooling fin part 44 is formed on the contact part 41 to cool the contact part 41.

본 발명의 일 실시예에 따른 모터용 냉각장치(1)는 접촉부(41)를 냉각시킨 냉각수가 열교환부(47)에 의해 열교환되어 접촉부(41)를 재냉각시킬 수 있다.
In the cooling device 1 for a motor according to an embodiment of the present invention, the cooling water cooling the contact portion 41 is heat-exchanged by the heat exchange portion 47 to re-cool the contact portion 41.

본 발명은 도면에 도시된 실시예를 참고로 하여 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. 따라서, 본 발명의 진정한 기술적 보호범위는 아래의 특허청구범위에 의해서 정하여져야 할 것이다.
The present invention has been described with reference to the embodiment shown in the drawings, but this is only exemplary, and those skilled in the art to which the art belongs can various modifications and equivalent other embodiments from this. Will understand. Therefore, the true technical protection scope of the present invention should be defined by the claims below.

10 : 하우징부 11 : 고정자
20 : 회전축부 21 : 회전자
22 : 정류자 23 : 브러쉬
30 : 베어링부 31 : 축베어링
32 : 브라켓 33 : 결합돌기
40 : 냉각부 41 : 접촉부
42 : 냉각관부 43 : 고정부
44 : 냉각핀부 45 : 결합판부
46 : 나사부 47 : 열교환부
421 : 입수관 422 : 출수관10: housing part 11: stator
20: rotating shaft portion 21: rotor
22: commutator 23: brush
30: bearing part 31: shaft bearing
32: bracket 33: engaging projection
40: cooling unit 41: contact unit
42: cooling pipe portion 43: fixing portion
44: cooling fin portion 45: coupling plate portion
46: screw part 47: heat exchanger
421: water intake 422: water intake

Claims (5)

하우징부;
상기 하우징부에 내장되어 회전되는 회전축부;
상기 회전축부를 지지하는 베어링부; 및
상기 베어링부와 접촉되고, 상기 베어링부를 냉각시키는 냉각부를 포함하고,
상기 냉각부는
상기 베어링부의 외측과 접촉되고 냉각수가 이동되는 접촉부;
상기 접촉부에 연통되어 냉각수의 출입을 안내하는 냉각관부;
상기 냉각관부에 결합되고, 상기 하우징부에 고정 설치되어 상기 냉각관부를 지지하는 고정부;
상기 접촉부의 외측면을 따라 돌출되고, 공기와 접촉되는 냉각핀부;
상기 접촉부에서 연장되고, 상기 베어링부에 접촉되며, 결합홀부가 형성되는 결합판부; 및
상기 결합홀부를 통해 상기 베어링부에 나사 결합되어, 상기 결합판부를 고정시키는 나사부를 포함하는 것을 특징으로 하는 모터용 냉각장치.
Housing part;
A rotating shaft part built into the housing part and rotated;
A bearing part supporting the rotating shaft part; And
A cooling unit in contact with the bearing unit and cooling the bearing unit,
The cooling unit
A contact portion in contact with the outside of the bearing portion and the cooling water being moved;
A cooling pipe part communicating with the contact part to guide the cooling water in and out;
A fixing part coupled to the cooling tube part and fixed to the housing part to support the cooling tube part;
A cooling fin portion protruding along the outer surface of the contact portion and contacting air;
A coupling plate portion extending from the contact portion, contacting the bearing portion, and forming a coupling hole portion; And
And a screw portion that is screwed to the bearing portion through the coupling hole portion to secure the coupling plate portion.
삭제delete 삭제delete 삭제delete 제 1항에 있어서, 상기 냉각부는
상기 냉각관부를 통해 이동되는 냉각수와 열교환되는 열교환부를 더 포함하는 것을 특징으로 하는 모터용 냉각장치.According to claim 1, The cooling unit
Cooling device for a motor, characterized in that it further comprises a heat exchange unit for heat exchange with the cooling water moved through the cooling tube.
KR1020140028632A 2014-03-11 2014-03-11 Cooling device for motor KR102132413B1 (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100868896B1 (en) * 2007-11-02 2008-11-14 한국기계연구원 Foil bearing and motor thereby

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JP3300200B2 (en) * 1995-06-20 2002-07-08 株式会社日立製作所 Rotating electric machines and electric vehicles
KR101040755B1 (en) * 2008-12-30 2011-06-13 주식회사 효성 Bearing cooling apparatus
KR101070427B1 (en) * 2010-02-09 2011-10-06 조동현 Cooling apparatus of generator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100868896B1 (en) * 2007-11-02 2008-11-14 한국기계연구원 Foil bearing and motor thereby

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