WO2016108581A1 - Couvercle pour boîtier de moteur - Google Patents

Couvercle pour boîtier de moteur Download PDF

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Publication number
WO2016108581A1
WO2016108581A1 PCT/KR2015/014413 KR2015014413W WO2016108581A1 WO 2016108581 A1 WO2016108581 A1 WO 2016108581A1 KR 2015014413 W KR2015014413 W KR 2015014413W WO 2016108581 A1 WO2016108581 A1 WO 2016108581A1
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WO
WIPO (PCT)
Prior art keywords
motor housing
cover
body portion
cooling
bearing
Prior art date
Application number
PCT/KR2015/014413
Other languages
English (en)
Korean (ko)
Inventor
이정호
차창환
김종원
Original Assignee
주식회사 효성
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 주식회사 효성 filed Critical 주식회사 효성
Publication of WO2016108581A1 publication Critical patent/WO2016108581A1/fr

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Classifications

    • 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
    • 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
    • H02K5/15—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
    • H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
    • 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
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information

Definitions

  • the present invention relates to a cover for a motor housing, and more particularly, the air discharged by the cooling fan flows to the front of the motor housing along the cooling fins provided on the outer circumferential surface of the motor housing, and then cools the motor housing primarily.
  • a cooling passage is formed between the first body portion and the second body portion, and the bearing is cooled by the air introduced into the cooling passage. It relates to a cover for a motor housing that can be.
  • an electric motor which is a kind of motor, includes a rotor coupled with a magnet and a stator to which a coil is wound, and rotates by magnetic flux generated by current applied to the coil of the stator and electromagnetic induction of the rotor. It is a device that uses the power of the rotating shaft as the self-rotating.
  • Heat generated in the motor is one of the biggest causes of deteriorating the performance of the motor, in general, the motor is provided with a cooling means for cooling the heat generated in the motor.
  • cooling means of the electric motor air cooling using a cooling fan and water cooling using cooling water are generally used.
  • the electric motor 1 is provided with the cylindrical motor housing 2. Cooling fins 3 are installed along the longitudinal direction of the motor housing 2 at regular intervals on the outer circumferential surface of the motor housing 2.
  • the cover 10 is installed on one side and / or the other side of the motor housing 2.
  • the stator 8 and the rotor 9 are mounted inside the motor housing 2.
  • the stator 8 is fixedly installed on the inner side of the motor housing 2.
  • the rotor 9 is installed to be rotatable with respect to the stator 8 inside the stator 8.
  • the rotary shaft 7 is installed through the motor housing 2 and the cover 10.
  • a bearing 6 is installed between the rotary shaft 7 and the cover 10. That is, the rotating shaft 7 is rotatably installed in the motor housing 2 via the bearing 6.
  • the rotor 9 is installed on the outer circumferential surface of the rotary shaft 7 so as to rotate simultaneously with the rotary shaft 7.
  • the fan hood 4 is installed on the other side of the motor housing 2, and the cooling fan 5 is installed inside the fan hood 4.
  • the cooling fan 5 is installed at one end of the rotary shaft 7 and rotates simultaneously with the rotary shaft 7.
  • the rotor rotates by the magnetic flux generated in the coil and the electromagnetic induction of the rotor, thereby rotating the rotating shaft connected to the rotor. Air forcibly discharged by the cooling fan by the rotation of the rotating shaft cools the motor housing along the cooling fins.
  • the conventional motor housing cover has a problem that the cooling flow path is not formed, the air flowing along the cooling fin is discarded after cooling only the motor housing.
  • the cover for the conventional motor housing does not have a separate cooling means for cooling the bearing installed in a part of the cover, the frictional heat of the rotating shaft and the bearing increases, the bearing is heat deformation or in severe cases the bearing may be damaged to damage the motor There was a problem.
  • the conventional cover for the motor housing is not cooled, the bearing has a problem that the efficiency of the motor is reduced as heat generated in the bearing flows into the interior of the motor housing.
  • the conventional water-cooled motor housing cover has a complicated structure due to the formation of a separate flow path for cooling water to flow, which increases the manufacturing cost and increases the thickness of the cover for the motor housing, making it impossible to miniaturize the motor. There was this.
  • an object of the present invention is to primarily cool the motor housing while the air discharged by the cooling fan flows to the front of the motor housing along the cooling fins installed on the outer peripheral surface of the motor housing Afterwards, a cooling flow path is formed between the first body portion and the second body portion to secondaryly cool the bearings installed on the cover for the motor housing with air discarded to the outside of the motor housing. To provide a cover for the motor housing that can cool the bearing.
  • the present invention provides a cover for an electric motor housing that can prevent the bearing from being deformed by thermal deformation and increase the efficiency of the electric motor as the bearing is secondarily cooled by the air introduced into the cooling flow path.
  • the present invention provides a motor housing having a cooling fin installed on an outer circumferential surface thereof, a cover installed on one side of the motor housing, a rotating shaft installed through the motor housing and the cover, and the rotating shaft and the An electric motor having a bearing installed between the cover and a cooling fan therein and a fan hood installed on the other side of the motor housing, the cover comprising: a first body part having a first hollow hole formed at a center thereof; A second main body installed on the inner side of the first main body; And a plurality of cooling passages formed between the first body portion and the second body portion to cool the bearing with air discharged by the cooling fan.
  • the first body portion and the second body portion of the cover for the motor housing is formed in a circular shape, the diameter of the second body portion is the first body portion It is preferably formed smaller than the diameter.
  • the second body portion of the cover for the motor housing is a base portion having a second hollow hole in the center; A plurality of connecting portions formed to be spaced apart from the circumferential surface of the base portion along the circumferential direction of the rotation shaft; A first protrusion formed to protrude from an outer surface of the base part; A second protrusion formed to protrude on an inner surface of the base portion so as to face the first protrusion; And a mounting recess formed between the first protrusion and the second protrusion to mount the bearing.
  • the second body portion of the cover for the motor housing may further include a plurality of ribs extending from the respective connecting portion to the upper end surface of the first protrusion; have.
  • the circumferential surface of the base portion of the second body portion of the cover for the motor housing is about a line parallel to the rotation axis from the inner surface of the base portion to the outer surface of the base portion. It may be formed to be inclined to have a predetermined inclination angle.
  • the inclination angle of the circumferential surface of the base of the second body portion of the cover for the motor housing is an angle of 0 degrees or more and 60 degrees or less with respect to the line parallel to the rotation axis. It is preferably formed to be.
  • the inner surface of the first body portion of the cover for the motor housing is about a line perpendicular to the rotation axis from the outer peripheral surface of the first body portion to the inner peripheral surface of the first body portion It may be formed to have a predetermined inclination angle.
  • the cover for the motor housing is formed such that the inclination angle of the inner surface of the first body portion is an angle of 0 degrees or more and 40 degrees or less with respect to the line perpendicular to the rotation axis. It is desirable to be.
  • the air discharged by the cooling fan flows to the front surface of the motor housing along the cooling fins provided on the outer circumferential surface of the motor housing, and is then discarded to the outside of the motor housing after the motor housing is first cooled.
  • Secondary cooling of the bearing installed in the cover for the motor housing with air has the effect of preventing thermal deformation of the bearing and its damage.
  • the cover for the motor housing according to the present invention is to minimize the energy consumption by cooling the bearing secondary to the air discharged from the cooling fan through the cooling flow path, the heat generated from the bearing is introduced into the interior of the motor housing There is an effect that can increase the efficiency of the motor by preventing.
  • the cover for the motor housing needs to add a configuration such as a separate forced ventilation device for cooling the bearing as the bearing is cooled through a cooling passage formed between the first body portion and the second body portion. After cooling the motor housing primarily with the air blown from the existing cooling fan without cooling, the bearing is secondarily cooled to reduce the manufacturing cost of the cover for the motor housing and reduce the size of the motor. .
  • FIG. 1 is a cross-sectional view for explaining a schematic structure of a conventional electric motor.
  • Figure 2 shows a rear exploded perspective view of a conventional air-cooled electric motor.
  • Figure 3 shows a perspective view of a motor with a cover for the motor housing according to an embodiment of the present invention.
  • FIG. 4 is a front perspective view of the cover for the motor housing according to an embodiment of the present invention.
  • Figure 5 shows a rear perspective view of the cover for the motor housing according to an embodiment of the present invention.
  • FIG. 6 is a side cross-sectional view of the line II of FIG. 5.
  • FIG. 7 is an enlarged view of portion A of FIG. 6.
  • FIG. 8 is an enlarged view of a portion B of FIG. 6.
  • Figure 3 shows a perspective view of a motor with a cover for the motor housing according to an embodiment of the present invention
  • Figure 4 shows a front perspective view of a cover for the motor housing according to an embodiment of the present invention
  • Figure 5 is a present invention
  • Rear perspective view of the cover for the motor housing according to an embodiment of the. 6 is a side cross-sectional view of the line I-I of FIG. 5
  • FIG. 7 is an enlarged view of portion A of FIG. 6
  • FIG. 8 is an enlarged view of portion B of FIG. 6.
  • Inner surface means a surface in a direction adjacent to the inside of the motor housing
  • outer surface means a surface opposite to the inner surface, that is, a surface in a direction adjacent to the outside.
  • inner circumferential surface means a circumferential surface of the rotation axis adjacent to the rotation axis with respect to the rotation axis
  • outer circumferential surface means a circumferential surface of the rotation axis relatively far from the rotation axis relative to the inner circumferential surface with respect to the rotation axis.
  • the cover 10 for an electric motor housing according to an embodiment of the present invention includes a first main body part 100, a second main body part 300, and a plurality of cooling flow paths 300. Is made of.
  • the motor 1 includes a cylindrical motor housing 2.
  • a plurality of cooling fins 3 are installed on the outer circumferential surface of the motor housing 2 so as to be spaced apart at predetermined intervals along the longitudinal direction of the motor housing 2.
  • the cover 10 is installed on one side of the motor housing 2.
  • the rotary shaft 7 is installed through the motor housing 2 and the top cover 10.
  • a bearing 6 is installed between the rotary shaft 7 and the cover 10.
  • the fan hood 4 is installed on the other side of the motor housing 2 so as to face the cover 10.
  • the cooling fan 5 is installed inside the fan hood 4. That is, the cooling fan 5 is installed at one end of the rotation shaft 7 so as to rotate simultaneously with the rotation shaft 7 inside the fan hood 4.
  • the first body portion 100 of the cover 10 has a first hollow hole 110 is formed in the center so that the rotation shaft 7 can be inserted and fastened.
  • the second main body 200 of the cover 10 is installed on the inner surface 130 of the first main body.
  • a plurality of cooling passages 300 are formed with the first main body 100 and the first main body 100. It is formed between two main body parts 200. That is, a plurality of cooling passages 300 are formed between the inner surface 130 of the first body portion and the outer surface 212 of the base portion of the second body portion.
  • the first body part 100 and the second body part 200 are formed in a circular shape, that is, a disc shape.
  • the diameter (d) of the second body portion 200 formed in a disk shape is formed smaller than the diameter (D) of the first body portion 100 formed in a disk shape. Accordingly, the air discharged through the cooling fan 5 cools the motor housing 2 along the outer circumferential surface of the motor housing 2 between the cooling fins 3 of the motor housing 2 in which the cooling fan 5 is installed. After flowing to the opposite side (front of the motor housing), air flows into the plurality of cooling passages 300 formed between the inner surface 130 of the first body portion and the outer surface 212 of the base portion of the second body portion, The incoming air cools the bearings.
  • a plurality of cooling flow paths in which air that is cooled and discarded only in the motor housing along the conventional cooling fins is formed between the inner surface 130 of the first body portion of the cover 10 and the outer surface 212 of the base portion of the second body portion. Inflow to the 300 is to cool the bearing.
  • the cover 10 for the motor housing utilizes the air blown from the cooling fan that is conventionally installed to cool the motor housing, without having to install a separate forced air blower.
  • the overall manufacturing cost of an electric motor can be reduced and motor miniaturization can be attained.
  • the second main body 200 of the cover 10 for a motor housing is a base portion 210, a plurality of connecting portions 220, the first protrusion 230, a second protrusion 240, and a seating recess 250.
  • the second hollow hole 211 is formed at the center of the base portion 210 of the second body portion. Accordingly, the rotating shaft 7 penetrates through the second hollow hole 211 formed in the first hollow hole 110 of the first main body part 100 and the base portion 210 of the second main body part 100, thereby providing a motor housing 2. Is installed through the back of the). As described above, the base portion 210 of the second body portion is also formed in a disc shape.
  • the plurality of connection parts 220 are formed to be spaced apart from the circumferential surface 214 of the base part in the circumferential direction of the rotation shaft.
  • the plurality of connection parts 220 may be formed on the circumferential surface 214 of the base part so as to be spaced apart by a predetermined angle with respect to the rotation axis.
  • three may be formed on the circumferential surface 214 of the base portion along the circumferential direction of the rotation shaft at an angle of 120 degrees.
  • four or six may be formed on the circumferential surface 214 of the base portion along the circumferential direction of the rotation shaft at an angle of 90 degrees or 60 degrees.
  • eight may be formed on the circumferential surface 214 of the base portion along the circumferential direction of the rotation shaft at an angle of 45 degrees.
  • the first protrusion 230 is formed to protrude on the outer surface 212 of the base portion.
  • the second protrusion 240 is formed to protrude on the inner side surface 213 of the base part so as to face the first protrusion 230.
  • the seating groove 250 is formed between the first protrusion 230 and the second protrusion 240.
  • the bearing is mounted in the seating groove 250.
  • the rotary shaft 7 passes through the first hollow hole 110 of the first body part of the cover and the second hollow hole 211 of the base part of the second body part via a bearing 6 installed in the seating groove 250. It is rotatably installed in the motor housing (2). That is, as a part of the rotating shaft 7 rotates at a high speed by the interaction of the stator and the rotor while contacting the bearing 6 mounted on the seating groove 250, the temperature of the bearing rises.
  • the second body portion according to another embodiment of the present invention further includes a plurality of ribs 260.
  • Each rib 260 extends from each connection portion 220 to the top surface of the first protrusion 230. That is, the outer surface of the rib 260 contacts the inner surface 130 of the first body portion, and the inner surface of the rib 260 contacts the outer surface 212 of the base portion of the second body portion at the connecting portion 220. It extends to the top surface of the first protrusion 230.
  • each cooling passage 300 is formed in the two ribs 260 and the first body portion extending from the adjacent connecting portion 220 to the top surface of the first protrusion 230 To the second hollow hole 211 and the first hollow hole 110 along the upper surface of the first portion 230 and the space portion formed between the side surface 130 and the outer surface 212 of the base portion of the second body portion. It is formed by the passage that follows.
  • air flowing to the front surface of the motor housing 2 along the cooling fins 3 extends to the adjacent connecting portion 220 along the circumferential surface 214 of the base portion and the inner surface 130 of the first body portion.
  • Flow into the space between the ribs 260 is moved along the upper surface of the first protrusion 230 to the front of the motor housing (2).
  • the moving air cools the bearing mounted on the seating groove 250. After cooling the bearing, air passes through the second hollow hole 211 and the first hollow hole 110 to be discharged to the outside of the motor housing 2.
  • the circumferential surface 214 of the base portion of the second body portion is a line parallel to the axis of rotation from the inner surface 213 of the base portion to the outer surface 212 of the base portion ( It is formed to be inclined so as to have a predetermined inclination angle ⁇ with respect to L).
  • the electric motor along the cooling fin 3 Air flowing to the front surface of the housing 2 is easily provided to the space between the circumferential surface 214 of the base portion and the rib 260 extending along the inner surface 130 of the first body portion and adjacent to the connecting portion 220. It will flow in.
  • the inclination angle ⁇ of the circumferential surface 214 of the base portion is inclined so as to have an inclination angle of 0 degrees or more and 60 degrees or less with respect to the line L parallel to the axis of rotation. (0 ° ⁇ ⁇ ⁇ 60 °
  • the velocity of air flowing between the inner side surface 130 of the first body portion and the outer side surface 212 of the base portion is increased to hit the inner side surface 130 of the first body portion. This is because the vortex is formed, and thus the amount of air flowing to the upper end surface of the first protrusion is small, so that the bearing cannot be sufficiently cooled.
  • the inner side surface 130 of the first body portion is a line perpendicular to the rotation axis from the outer circumferential surface 140 of the first body portion to the inner circumferential surface 150 of the first body portion. It is formed to have a predetermined inclination angle ⁇ with respect to (H).
  • the inclination angle ⁇ of the inner surface 130 of the first body portion is inclined so as to have an inclination angle ⁇ of not less than 0 degrees and not more than 40 degrees with respect to the line H perpendicular to the rotation axis. ⁇ ⁇ ⁇ 40 °)
  • the inclination angle ⁇ exceeds 40 degrees, the structural stability of the cover is reduced, and a crack may occur near the inner circumferential surface of the cover, in particular, the first body part, due to vibration generated during driving of the motor. There is a problem that the cost is increased.
  • Table 1 shows the temperature of the bearing and the temperature of the bearing in the cover for the motor housing according to the present invention in the state operated in the same condition in the cover for the conventional motor housing.
  • the temperature of the bearing was 48.1 degrees in the cover for the conventional motor housing in which no cooling flow path was formed.
  • the temperature of the bearing installed in the seating groove of the cover for the motor housing in which the cooling flow path is formed according to the present invention is cooled to 25.8 degrees.
  • the cooling efficiency of the bearing increases by more than 50%, the thermal deformation and breakage of the bearing due to the increase of the bearing temperature are prevented, and the heat generated from the bearing is prevented from flowing into the motor housing to increase the efficiency of the motor. Can be.
  • the rotating shaft rotates as the rotor rotates by the magnetic flux generated by the current applied to the coil of the stator and the electromagnetic induction of the rotor.
  • the temperature of the bearing is increased by the rotation of the rotating shaft.
  • the cooling fan installed on the other side of the motor housing is driven by the rotation of the rotary shaft. As the cooling fan is driven, air flows between the cooling fins to the front of the motor housing (opposite to the motor housing in which the cooling fan is installed). Air flowing to the front surface of the motor housing is introduced between the inner surface of the first body portion and the inner surface of the base portion of the second body portion by the inclination angle formed on the inner surface of the base portion and the inclination angle formed on the inner surface of the first body portion.
  • Air introduced between the inner surface of the first body portion and the inner surface of the base portion of the second body portion is moved forward of the motor housing along the upper surface of the first protrusion so as to be parallel to the rotation axis.
  • the bearing is cooled by the air cooling method.
  • the second hollow hole and the first hollow hole are discharged to the outside of the cover.
  • 200 second body portion
  • 210 base portion
  • D diameter of the first body portion
  • d diameter of the second body portion
  • ⁇ inclination angle of the peripheral surface of the base portion
  • ⁇ inclination angle of the inner surface of the first body portion.
  • the present invention relates to a cover for a motor housing and can be used in the field of motors.

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

Abstract

La présente invention concerne un couvercle pour un boîtier de moteur, dans un moteur qui comprend : un boîtier de moteur sur la surface circonférentielle extérieure duquel est installée une ailette de refroidissement ; un couvercle installé dans un côté du boîtier de moteur ; un arbre de rotation installé de façon à pénétrer à travers le boîtier de moteur et le couvercle ; un palier installé entre l'arbre de rotation et le couvercle ; un couvercle de ventilateur à l'intérieur duquel se trouve un ventilateur de refroidissement et installé de l'autre côté du boîtier de moteur, le couvercle pour boîtier de moteur comportant : une première unité de corps principal dans la partie centrale de laquelle est formé un premier trou creux ; une seconde unité de corps principal installée dans la surface latérale intérieure de la première unité de corps principal ; une pluralité de passages de refroidissement, formés entre la première unité de corps principal et la seconde unité de corps principal, pour refroidir le palier au moyen de l'air refoulé par le ventilateur de refroidissement.
PCT/KR2015/014413 2014-12-29 2015-12-29 Couvercle pour boîtier de moteur WO2016108581A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020140192181A KR101679646B1 (ko) 2014-12-29 2014-12-29 전동기 하우징용 커버
KR10-2014-0192181 2014-12-29

Publications (1)

Publication Number Publication Date
WO2016108581A1 true WO2016108581A1 (fr) 2016-07-07

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PCT/KR2015/014413 WO2016108581A1 (fr) 2014-12-29 2015-12-29 Couvercle pour boîtier de moteur

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KR (1) KR101679646B1 (fr)
WO (1) WO2016108581A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112636515A (zh) * 2020-12-22 2021-04-09 超音速智能技术(杭州)有限公司 一种小型电机组件安装结构及电机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05137296A (ja) * 1991-11-14 1993-06-01 Mitsubishi Electric Corp 全閉外扇形電動機
JPH0993865A (ja) * 1995-09-29 1997-04-04 Hitachi Ltd 誘導電動機
KR20040011059A (ko) * 2002-07-27 2004-02-05 오티스 엘리베이터 컴파니 전동기의 냉각구조
JP2010205977A (ja) * 2009-03-04 2010-09-16 Konica Minolta Holdings Inc 熱電変換素子
KR101464705B1 (ko) * 2013-11-21 2014-12-12 차진호 베어링 에어 냉각 구조를 가지는 블로어 모터

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100948154B1 (ko) 2007-12-24 2010-03-18 주식회사 효성 전동기 냉각장치
JP2010206977A (ja) 2009-03-04 2010-09-16 Toshiba Mitsubishi-Electric Industrial System Corp 全閉形電動機装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05137296A (ja) * 1991-11-14 1993-06-01 Mitsubishi Electric Corp 全閉外扇形電動機
JPH0993865A (ja) * 1995-09-29 1997-04-04 Hitachi Ltd 誘導電動機
KR20040011059A (ko) * 2002-07-27 2004-02-05 오티스 엘리베이터 컴파니 전동기의 냉각구조
JP2010205977A (ja) * 2009-03-04 2010-09-16 Konica Minolta Holdings Inc 熱電変換素子
KR101464705B1 (ko) * 2013-11-21 2014-12-12 차진호 베어링 에어 냉각 구조를 가지는 블로어 모터

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112636515A (zh) * 2020-12-22 2021-04-09 超音速智能技术(杭州)有限公司 一种小型电机组件安装结构及电机
CN112636515B (zh) * 2020-12-22 2022-04-22 超音速智能技术(杭州)有限公司 一种小型电机组件安装结构

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KR101679646B1 (ko) 2016-11-28
KR20160082798A (ko) 2016-07-11

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