KR101668119B1 - Inner Waterproof type Electric Motor - Google Patents

Inner Waterproof type Electric Motor Download PDF

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Publication number
KR101668119B1
KR101668119B1 KR1020100124773A KR20100124773A KR101668119B1 KR 101668119 B1 KR101668119 B1 KR 101668119B1 KR 1020100124773 A KR1020100124773 A KR 1020100124773A KR 20100124773 A KR20100124773 A KR 20100124773A KR 101668119 B1 KR101668119 B1 KR 101668119B1
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South Korea
Prior art keywords
rotor
shaft
motor
electric motor
housing
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KR1020100124773A
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Korean (ko)
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KR20120063690A (en
Inventor
김상진
박승용
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현대모비스 주식회사
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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
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/32—Control or regulation of multiple-unit electrically-propelled vehicles
    • B60L15/34—Control or regulation of multiple-unit electrically-propelled vehicles with human control of a setting device
    • B60L15/36—Control or regulation of multiple-unit electrically-propelled vehicles with human control of a setting device with automatic control superimposed, e.g. to prevent excessive motor current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/0403—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by constructional features, e.g. common housing for motor and gear box
    • B62D5/0406—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by constructional features, e.g. common housing for motor and gear box including housing for electronic control unit
    • 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
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0653—Units comprising pumps and their driving means the pump being electrically driven the motor being flooded
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
    • G05D16/202—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means actuated by an electric motor
    • 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
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/124—Sealing of shafts

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Transportation (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

본 발명의 전동모터에는 풀리(4)를 고정하는 로터(3)의 축이 빠져 나오는 하우징(1)의 축홀둘레에 단차홈(12)을 형성한 축보스(11)로 이루어진 방수부(10)가 더 구비됨으로써, 하우징(1)을 타고 흐르는 물방울의 모터내부 침투를 차단시켜 수분으로 인한 모터내부의 부식현상을 방지할 수 있고 모터의 수명도 향상시킬 수 있는 특징을 갖는다.The electric motor of the present invention is provided with the waterproof portion 10 formed of the axial boss 11 having the stepped groove 12 formed around the shaft hole of the housing 1 in which the shaft of the rotor 3 for fixing the pulley 4 is removed, It is possible to prevent penetration of water droplets flowing on the housing 1 into the motor to prevent corrosion of the inside of the motor due to moisture and improve life of the motor.

Description

내부 수분 침투 방지 타입 전동모터{Inner Waterproof type Electric Motor} Inner Waterproof type Electric Motor "

본 발명은 전동모터에 관한 것으로, 특히 내부 수분 침투 방지 타입 전동모터에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric motor and, more particularly, to an internal moisture permeation prevention type electric motor.

일반적으로 전동모터는 회전자인 로터(Rotor)와 고정자인 스테이터(Stato)가 커버(Cover)와 결합되는 하우징(Housing)에 조립되고, 상기 로터의 축끝에 키(Key)로 고정되어진 풀리(Pulley)가 결합되고, 웨이브와셔(Wave Washer)와 렌치볼트(Wrench Bolt)및 플랜지너트(Flange Nut)등을 이용해 각 구성부품들을 조립하게 된다.BACKGROUND ART Generally, an electric motor is assembled in a housing in which a rotor, which is a rotor, and a stator, which is a stator, are coupled to a cover, and a pulley, which is fixed to a shaft end of the rotor, And the components are assembled by using a wave washer, a wrench bolt, and a flange nut.

상기 로터는 영구자석을 갖추고 규소강판을 적충한 구조로 이루어져 회전토크를 발생시키고, 회전토크를 풀리에 전달하도록 풀리를 키 고정한 출력축을 구비하게 된다.The rotor has a structure in which permanent magnets are provided and a silicon steel plate is laminated to generate a rotation torque, and an output shaft having a pulley keyed to transmit rotation torque to the pulley is provided.

상기와 같이 로터는 로터의 회전토크를 받는 풀리를 고정하는 축이 구비됨으로써, 로터를 조립한 하우징에는 조립된 상태에서 로터 축을 외부로 노출시키는 축홀이 형성되어진다.As described above, the rotor has a shaft for fixing the pulley receiving the rotation torque of the rotor, so that a shaft hole for exposing the rotor shaft to the outside in the assembled state is formed in the housing in which the rotor is assembled.

하지만, 통상적으로 하우징의 축홀 직경이 로터 축 직경보다 크게 형성되어짐으로써, 방수를 요하는 전동모터의 방수기능이 저하될 수 있게 된다.However, since the axial hole diameter of the housing is generally larger than the axial diameter of the rotor, the waterproof function of the electric motor requiring waterproofing can be degraded.

특히, 하우징의 표면을 타고 풀리를 고정하는 로터 축 부위 쪽으로 흐르는 수분은 로터 축이 빠져 나온 하우징의 축홀 벽면부위를 타고 모터 내부로 침투됨으로써, 모터 내부부품인 베어링과 로터 및 스테이터등에 부식이 유발될 수 있게 된다.
Particularly, the moisture flowing toward the rotor shaft fixing the pulleys on the surface of the housing is permeated into the motor through the shaft hole wall portion of the housing from which the rotor shaft has escaped, thereby causing corrosion in bearings, .

이에 상기와 같은 점을 감안하여 발명된 본 발명은 풀리를 고정하는 로터 축이 빠져 나오는 하우징의 축홀부위에 단차와 원주 홈을 형성해줌으로써, 하우징을 타고 흐르는 물방울의 모터내부 침투를 차단시켜 수분으로 인한 모터내부의 부식현상을 방지할 수 있도록 된 내부 수분 침투 방지 타입 전동모터를 제공하는데 목적이 있다.
According to the present invention, the stepped portion and the circumferential groove are formed in the shaft hole of the housing in which the rotor shaft for securing the pulley is removed, thereby preventing the water droplet flowing in the housing from penetrating the motor, An object of the present invention is to provide an internal water-immersion type electric motor that can prevent corrosion inside the motor.

상기와 같은 목적을 달성하기 위한 본 발명의 전동모터는 고정자인 스테이터(Stator)와 함께 회전자인 로터를 내부로 구비한 모터하우징과, According to an aspect of the present invention, there is provided an electric motor including a motor housing having a rotor as a rotor together with a stator as a stator,

풀리를 고정한 상기 로터의 축이 관통하는 상기 모터하우징의 축홀 주위를 감싸도록 돌출되어져 상기 로터의 축에 고정된 상기 풀리의 일부 부위를 안쪽공간으로 위치시켜주는 방수부A waterproof portion for protruding to surround the shaft hole of the motor housing through which the shaft of the rotor is fixed and for fixing a part of the pulley fixed to the shaft of the rotor to the inner space,

를 포함해 구성된 것을 특징으로 한다.And a control unit.

상기 방수부는 상기 모터하우징에 뚫려진 축홀의 주위를 감싸도록 돌출된 축보스와, 상기 축보스의 원주둘레를 따라 파여진 단차홈으로 이루어진다.The waterproof portion includes a shaft boss protruding to surround a shaft hole pierced in the motor housing, and a step groove recessed along the circumference of the shaft boss.

상기 단차홈은 상기 축보스의 폭 중앙부위로 형성되어진다.
The stepped groove is formed on the center of the width of the axial boss.

이러한 본 발명은 하우징의 축홀부위에 단차와 원주홈을 형성하여 하우징을 타고 흐르는 물방울의 모터내부 침투를 차단시켜주므로 수분 침투로 인한 모터내부의 부식현상을 방지하고 모터 수명을 향상시키는 효과가 있게 된다.
The present invention forms a step and a circumferential groove in the shaft hole of the housing to prevent penetration of water droplets flowing through the housing into the motor, thereby preventing corrosion of the interior of the motor due to moisture penetration and improving motor life .

도 1은 본 발명에 따른 내부 수분 침투 방지 타입 전동모터의 구성도이고, 도 2는 본 발명에 따른 전동모터의 내부 수분 침투 방지 작동도이다.FIG. 1 is a block diagram of an internal moisture permeation prevention type electric motor according to the present invention, and FIG. 2 is an internal moisture permeation prevention operation diagram of an electric motor according to the present invention.

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명하며, 이러한 실시예는 일례로서 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 여러 가지 상이한 형태로 구현될 수 있으므로, 여기에서 설명하는 실시예에 한정되지 않는다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which illustrate exemplary embodiments of the present invention. The present invention is not limited to these embodiments.

도 1은 본 실시예에 따른 내부 수분 침투 방지 타입 전동모터의 구성도를 나타낸다.Fig. 1 shows a configuration diagram of an internal moisture permeation prevention type electric motor according to the present embodiment.

도시된 바와 같이, 전동모터는 고정자인 스테이터(Stator)와 함께 회전자인 로터(3,Rotor)가 모터커버(2,Cover)와 결합되는 모터하우징(1,Housing)에 조립되고, 상기 로터(3)의 축끝에 키(Key)로 고정되어진 풀리(4,Pulley)가 모터하우징(1)의 외부에서 결합되고, 각 구성부품들의 조립을 위해 웨이브와셔(Wave Washer)와 렌치볼트(Wrench Bolt)및 플랜지너트(Flange Nut)등을 적용한다.As shown in the figure, the electric motor is assembled to a motor housing 1, in which a rotor 3 serving as a rotor together with a stator serving as a stator is coupled with a motor cover 2, A pulley 4 fixed to the shaft end of the motor housing 1 by a key is coupled to the outside of the motor housing 1 and a wave washer and a wrench bolt Flange Nut or the like is applied.

상기 모터하우징(1)의 전면부위에는 풀리(4)를 키로 고정하는 로터(3)의 축이 모터하우징(1)의 밖으로 빠져나오도록 축홀이 뚫려지고, 상기 축홀에는 축홀의 주위를 감싸는 방수부(10)가 형성되어진다.A shaft hole is drilled in the front surface portion of the motor housing 1 so that the shaft of the rotor 3 fixing the pulley 4 with the key is pulled out of the motor housing 1, (10) is formed.

상기 방수부(10)는 모터하우징(1)에 뚫려진 축홀의 주위를 감싸도록 돌출된 축보스(11)와, 상기 축보스(11)의 원주둘레를 따라 파여진 단차홈(12)으로 이루어진다.The waterproof portion 10 includes an axial boss 11 protruded to surround a shaft hole drilled in the motor housing 1 and a step groove 12 formed along the circumference of the axial boss 11 .

상기 단차홈(12)은 축보스(11)의 폭 중앙부위로 형성되어진다.The stepped groove 12 is formed on the center of the width of the axial boss 11.

도 2는 본 실시예에 따른 전동모터의 내부 수분 침투 방지 작동도를 나타낸다.Fig. 2 shows an operation of preventing the penetration of moisture into the electric motor according to the present embodiment.

도시된 바와 같이, 로터(3)의 축이 모터하우징(1)에 뚫려진 축홀을 통해 모터하우징(1)의 밖으로 빠져나오고, 풀리(4)는 모터하우징(1)의 밖에서 상기 로터(3)의 축과 키로 고정되며, 상기 모터하우징(1)에 뚫려진 축홀의 주위를 감싸도록 돌출된 축보스(11)는 그 안쪽공간으로 삽입된 상기 풀리(4)를 감싸주게 된다.The shaft of the rotor 3 is pulled out of the motor housing 1 through the shaft hole drilled in the motor housing 1 and the pulley 4 is moved out of the motor housing 1 to the rotor 3, And the shaft boss 11 protruded to surround the shaft hole drilled in the motor housing 1 is wrapped around the pulley 4 inserted into the inner space.

즉, 상기 축보스(11)의 돌출부위가 풀리(4)쪽으로 연장되어 풀리(4)를 감싸줌으로써 모터하우징(1)의 축홀 주위를 밀폐시켜주게 된다.That is, the protruding portion of the shaft boss 11 extends toward the pulley 4 to enclose the pulley 4, thereby sealing the periphery of the shaft hole of the motor housing 1. [

이에 따라, 모터하우징(1)의 표면을 타고 풀리(4)를 고정하는 로터(3)의 축 부위 쪽으로 수분이 흐르게 되면, 수분은 풀리(4)쪽으로 연장되어 풀리(4)를 감싸는 축보스(11)를 타고 흘러내림으로써 모터하우징(1)의 표면으로 만 흐르게 된다.The moisture is flowed toward the pulley 4 and flows into the shaft bosses 4a and 4b surrounding the pulley 4 when the water flows toward the axial portion of the rotor 3 that fixes the pulley 4 on the surface of the motor housing 1, 11 to flow only to the surface of the motor housing 1.

이때, 상기 축보스(11)를 타고 흘러내리는 수분은 축보스(11)의 원주둘레를 따라 파여진 단차홈(12)으로 모여지게 되고, 이러한 단차홈(12)의 작용으로 인해 축보스(11)를 타고 흘러내리는 수분이 모터하우징(1)의 안쪽으로 유입될 수 있는 소지를 더욱 차단할 수 있게 된다.At this time, the water flowing down the shaft boss 11 is gathered in the stepped groove 12 which is widened along the circumference of the axial boss 11. The action of the stepped groove 12 causes the axial boss 11 So that water flowing down on the inside of the motor housing 1 can be blocked further.

상기와 같이 본 실시예에 따른 전동모터에는 풀리(4)를 고정하는 로터(3)의 축이 빠져 나오는 하우징(1)의 축홀둘레에 단차홈(12)을 형성한 축보스(11)로 이루어진 방수부(10)가 더 구비됨으로써, 하우징(1)을 타고 흐르는 물방울의 모터내부 침투를 차단시켜 수분으로 인한 모터내부의 부식현상을 방지할 수 있고 모터의 수명도 향상시킬 수 있게 된다.
As described above, the electric motor according to the present embodiment includes the shaft boss 11 formed with the stepped groove 12 around the shaft hole of the housing 1 from which the shaft of the rotor 3 for securing the pulley 4 comes out By further including the waterproof portion 10, it is possible to prevent penetration of water droplets flowing through the housing 1 into the motor, thereby preventing corrosion of the inside of the motor due to moisture and improving the life of the motor.

1 : 모터하우징 2 : 모터커버
3 : 로터 4 : 풀리
10 : 방수부 11 : 축보스
12 : 단차홈1: Motor housing 2: Motor cover
3: rotor 4: pulley
10: Waterproof part 11: Axial boss
12: Stepped groove

Claims (3)

고정자인 스테이터(Stator)와 함께 회전자인 로터를 내부로 구비한 모터하우징과,
풀리를 고정한 상기 로터의 축이 관통하는 상기 모터하우징의 축홀 주위를 감싸도록 돌출되어져 상기 로터의 축에 고정된 상기 풀리의 일부 부위를 안쪽공간으로 위치시켜주는 방수부를 포함해 구성되고,
상기 방수부는 상기 모터하우징에 뚫려진 축홀의 주위를 감싸도록 돌출된 축보스와, 상기 축보스의 원주둘레를 따라 파여진 단차홈으로 이루어진
것을 특징으로 하는 내부 수분 침투 방지 타입 전동모터.
A motor housing having a rotor as a rotor together with a stator as a stator,
And a waterproof portion protruding to surround the shaft hole of the motor housing through which the shaft of the rotor is fixed, the water hole being positioned in an inner space of a part of the pulley fixed to the shaft of the rotor,
The waterproof portion includes an axial boss projecting to surround the shaft hole drilled in the motor housing and a stepped groove formed along the circumference of the axial boss
Which is characterized by an internal moisture permeation prevention type electric motor.
삭제delete 청구항 1에 있어서, 상기 단차홈은 상기 축보스의 폭 중앙부위로 형성되어진 것을 특징으로 하는 내부 수분 침투 방지 타입 전동모터.
The internal-moisture-penetration-type electric motor according to claim 1, wherein the stepped groove is formed on a central portion of the width of the axial boss.
KR1020100124773A 2010-12-08 2010-12-08 Inner Waterproof type Electric Motor KR101668119B1 (en)

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KR101470171B1 (en) * 2013-06-20 2014-12-09 현대자동차주식회사 Mortor generator for vehicle
KR101726761B1 (en) 2015-08-17 2017-04-13 주식회사 포스코 Covering device and rolling facility including the same
JP6524023B2 (en) * 2016-06-01 2019-06-05 日立オートモティブシステムズ株式会社 Electric drive device and electric power steering device

Citations (1)

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KR200306047Y1 (en) * 2002-12-03 2003-03-03 차용기 Vibration absorption and low noise type motor for treadmills

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KR19980057069U (en) * 1997-01-29 1998-10-15 김광호 Moisture inflow prevention cap of motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200306047Y1 (en) * 2002-12-03 2003-03-03 차용기 Vibration absorption and low noise type motor for treadmills

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