KR20060093993A - The method of the cooling of axial type bldc motor - Google Patents

The method of the cooling of axial type bldc motor Download PDF

Info

Publication number
KR20060093993A
KR20060093993A KR1020050015173A KR20050015173A KR20060093993A KR 20060093993 A KR20060093993 A KR 20060093993A KR 1020050015173 A KR1020050015173 A KR 1020050015173A KR 20050015173 A KR20050015173 A KR 20050015173A KR 20060093993 A KR20060093993 A KR 20060093993A
Authority
KR
South Korea
Prior art keywords
motor
cooling
rotor
stator
heat generated
Prior art date
Application number
KR1020050015173A
Other languages
Korean (ko)
Inventor
전한용
Original Assignee
전한용
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 전한용 filed Critical 전한용
Priority to KR1020050015173A priority Critical patent/KR20060093993A/en
Publication of KR20060093993A publication Critical patent/KR20060093993A/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2793—Rotors axially facing stators
    • H02K1/2795—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • 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
    • 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
    • H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
    • H02K9/16—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the cooling medium circulates through ducts or tubes within the casing

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

본 발명은 엑시얼(axial) 타입의 BLDC(brushless DC) 모터의 회전 시 열원인 스테이터(stator)에서 발생하는 열을 냉각시키기 위해 고안되었다.The present invention is designed to cool heat generated in a stator, which is a heat source during rotation of an axial brushless DC (BLDC) motor.

스테이터에 전압을 인가하면 코일(coil)에서 힘이 발생하여 로터(rotor)에 부착되어 있는 자석과의 상호작용으로 로터와 샤프트(shaft)가 회전하게 된다. 이런 경우, 코일의 전류에 의한 열과 로터의 공기마찰에 의한 열이 발생하여 모터의 성능에 영향을 미치게 되므로, 발열을 억제하는 것이 모터의 성능을 좌우하게 된다. When a voltage is applied to the stator, a force is generated in the coil, and the rotor and the shaft rotate by interaction with a magnet attached to the rotor. In this case, heat generated by the coil current and heat generated by the air friction of the rotor affect the performance of the motor. Therefore, suppressing heat generation influences the performance of the motor.

본 발명에서 제안하고 있는 구조에서는 로터가 회전하면 사선방향으로 뚫려있는 냉각구멍에 의해 외부 공기가 유입되고, 따라서 스테이터에서 발생하는 열을 냉각시키는 효과를 주게 된다.In the structure proposed in the present invention, when the rotor rotates, the outside air is introduced by the cooling holes drilled diagonally, thus cooling the heat generated in the stator.

모터, BLDC, 냉각, Axial type Motor, BLDC, Cooling, Axial type

Description

엑시얼 타입 비엘디씨 모터의 냉각 방법 {The method of the cooling of axial type BLDC motor}Cooling method of axial type BLC motor {The method of the cooling of axial type BLDC motor}

도 1 하나의 로터로 구성된 엑시얼 BLDC 모터Fig. 1 Axial BLDC motor consisting of one rotor

도 2 두개의 로터로 구성된 엑시얼 BLDC 모터Fig. 2 Axial BLDC motor consisting of two rotors

도 3 로터의 3차원 모양Fig. 3 Three-dimensional shape of the rotor

도 4 수직 방향의 냉각 구멍을 가진 종래의 로터Figure 4 conventional rotor with vertical cooling holes

(1): 샤프트(shaft)(1): shaft

(2): 로터(upper rotor)(2): upper rotor

(3): 스테이터(stator)(3): stator

(4): 로터(lower rotor)(4): lower rotor

(5), (6), (7): 냉각 구멍(cooling hole)(5), (6), (7): cooling hole

본 발명은 엑시얼 타입 BLDC 모터를 효과적으로 냉각하기 위한 방법에 관한 것이다.The present invention relates to a method for effectively cooling an axial type BLDC motor.

종래의 기술은 도 4와 같이 로터에 수직으로 구멍을 내어 냉각하는 방법을 사용하였다. 이는 공기를 유입한다기보다 스테이터에서 발생하는 열을 밖으로 배출하는 기능을 이용한 것이다. 또한 공기를 유입한다고 해도 유입량이 크지 않기 때문에 모터의 열원(스테이터)을 효과적으로 냉각할 수 없었다.The prior art used a method of cooling by drilling a hole perpendicular to the rotor as shown in FIG. This utilizes the function of discharging the heat generated by the stator to the outside rather than introducing air. In addition, even if air was introduced, the inflow amount was not large, and thus the heat source (stator) of the motor could not be cooled effectively.

본 발명은 상술한 바와 같이 종래의 냉각 방법이 갖는 제반 제약사항들을 감안하여 이를 해결하고자 창출한 방법이다. 로터의 회전 방향에 따라 공기가 잘 유입될 수 있도록 사선 방향으로 공기 유입 구멍을 뚫어 외부 공기로 모터의 열원을 냉각시켜 모터의 성능을 향상시키는데 목적이 있다.As described above, the present invention is a method created to solve this problem in consideration of general limitations of the conventional cooling method. The purpose of the present invention is to improve the performance of the motor by cooling the heat source of the motor with external air by drilling an air inlet hole in an oblique direction so that air can be easily introduced according to the rotation direction of the rotor.

본 발명에 따른 모터 냉각 장치는 회전 운동을 하는 로터에 외부 공기가 유입될 수 있도록 회전 방향으로 향한 사선의 구멍을 뚫어, 로터의 하측에 있는 모터의 열원(주로 스테이터)에 공기로 냉각하는 방식이다. 일반적인 냉각 구멍은 도 4의 (7)과 같이 수직 방향으로 뚫려있고, 이는 공기의 유입이 목적이기보다는 열원에서 발생한 열을 방출함을 목적으로 한다. 이와 같은 방식은 냉각 효과가 크게 떨어진다. 본 발명의 정확한 설명을 위하여 도면으로 발명의 구성과 작용을 설명한다.The motor cooling apparatus according to the present invention is a method of cooling by air to the heat source (mainly the stator) of the motor in the lower side of the rotor by drilling a diagonal hole in the direction of rotation so that the outside air flows into the rotor in the rotary motion . The general cooling hole is drilled in the vertical direction as shown in (7) of FIG. 4, which aims at releasing heat generated from a heat source rather than introducing air. In this way, the cooling effect is greatly reduced. For the precise description of the present invention will be described the configuration and operation of the invention in the drawings.

도 1에서와 같이 하나의 로터(single rotor type)로 구성된 엑시얼 타입 BLDC 모터의 경우는 회전 방향에 따라 냉각 구멍을 좌상-우하측(시계 방향 회전), 또는 우상-좌하측(시계 반대 방향 회전) 방향으로 하여 외부 공기가 열원에 잘 유입될 수 있도록 한다. 샤프트(1)과 로터(2)가 서로 결합되어 있고, 사선 방향 냉각 구멍(5)에 의해 스테이터(3)을 냉각하는 방식이다.In the case of an axial type BLDC motor composed of a single rotor type, as shown in FIG. Direction so that the outside air can flow into the heat source well. The shaft 1 and the rotor 2 are coupled to each other, and the stator 3 is cooled by the diagonal cooling holes 5.

도 2에서와 같이 두개의 로터(double rotor type)로 구성된 모터의 경우는 상측 로터(2)와 하측 로터(4)의 사선 방향이 서로 반대((5)와 (6))가 되어 상하측 동시에 공기가 유입되어 스테이터(3)을 냉각하는 방식이다. In the case of a motor composed of two rotors (double rotor type) as shown in Fig. 2, the diagonal directions of the upper rotor 2 and the lower rotor 4 are opposite to each other ((5) and (6)), Air is introduced to cool the stator 3.

도 3은 하나의 로터로 구성된 방식의 모터에서 회전 방향이 시계 반대 방향 이거나, 두개의 로터로 구성된 시스템의 모터에서 회전 방향이 시계 방향인 경우의 3차원 모양을 나타내고 있다. FIG. 3 shows a three-dimensional shape in which the rotation direction is counterclockwise in a motor composed of one rotor or in a clockwise direction in a motor of a system composed of two rotors.

도 4는 냉각 구멍이 수직 방향(7)으로 뚫려있는 종래의 로터를 나타내고 있다. 4 shows a conventional rotor in which cooling holes are drilled in the vertical direction 7.

이상에서 상세히 설명한 바와 같은 엑시얼 타입 BLDC 모터의 냉각 장치는 회전 방향을 향한 냉각 구멍을 통해 외부의 공기가 유입되어 모터를 냉각시킨다. 모터의 작동으로 인한 열은 모터의 성능을 저하시키고, 각 부품들을 열성능이 뛰어난 고가의 부품을 써야한다. 본 발명으로부터 모터의 성능과 가격 경쟁력이 향상된 제품을 만들 수 있다.In the cooling apparatus of the axial type BLDC motor as described in detail above, external air is introduced through the cooling hole facing the rotation direction to cool the motor. Heat generated by the operation of the motor degrades the performance of the motor, and each part needs to use expensive parts having excellent thermal performance. From the present invention it is possible to make a product with improved performance and price competitiveness of the motor.

Claims (3)

엑시얼 타입 BLDC 모터에서 회전 방향에 따른 사선 방향의 냉각 구멍을 가진 로터로 구성된 모터.In an axial type BLDC motor, a motor consisting of a rotor with diagonal cooling holes along the direction of rotation. 제 1 항에 있어서,The method of claim 1, 하나의 로터에 회전 방향에 따른 사선 방향의 냉각 구멍을 가진 엑시얼 타입 BLDC 모터.Axial type BLDC motor with diagonal cooling holes in one rotor in the direction of rotation. 제 1 항에 있어서,The method of claim 1, 두 개 이상의 로터에 회전 방향에 따른 사선 방향의 냉각 구멍을 가진 엑시얼 타입 BLDC 모터.An axial type BLDC motor with two or more rotors with diagonal cooling holes along the direction of rotation.
KR1020050015173A 2005-02-23 2005-02-23 The method of the cooling of axial type bldc motor KR20060093993A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020050015173A KR20060093993A (en) 2005-02-23 2005-02-23 The method of the cooling of axial type bldc motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020050015173A KR20060093993A (en) 2005-02-23 2005-02-23 The method of the cooling of axial type bldc motor

Publications (1)

Publication Number Publication Date
KR20060093993A true KR20060093993A (en) 2006-08-28

Family

ID=37601948

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020050015173A KR20060093993A (en) 2005-02-23 2005-02-23 The method of the cooling of axial type bldc motor

Country Status (1)

Country Link
KR (1) KR20060093993A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020096667A3 (en) * 2018-08-08 2020-07-23 Schaeffler Technologies AG & Co. KG Hybrid module including rotor having coolant flow channels

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020096667A3 (en) * 2018-08-08 2020-07-23 Schaeffler Technologies AG & Co. KG Hybrid module including rotor having coolant flow channels
US11121597B2 (en) 2018-08-08 2021-09-14 Schaeffler Technologies AG & Co. KG Hybrid module including rotor having coolant flow channels

Similar Documents

Publication Publication Date Title
JP6509347B2 (en) Rotating electrical machine and air conditioner
CN103023217B (en) Overall machine wind path structure of high-power and high-peed permanent magnet synchronous motor
TW200631287A (en) Cooling structure of superconducting motor
JPWO2008041353A1 (en) Fan motor
JP2018518935A (en) Rotor for embedded permanent magnet electric motor and electric motor using the same
JP6500464B2 (en) Cooling structure of rotating electric machine
US6762527B1 (en) DC brushless motor
BRPI0615441A2 (en) device and method for holding and locking permanent magnets and improving cooling within a rotary electric machine
JP2016037958A (en) Axial fan and fan unit
JP2017192273A (en) Rotary electric machine
US9065320B2 (en) Passive drive motors and passive fans for use therewith
KR20060093993A (en) The method of the cooling of axial type bldc motor
JP2010161832A (en) Permanent magnet rotating electrical machine
CN206099654U (en) Take rotor and brushless DC motor of fan assembly spare
KR20130021612A (en) Large size induction motor with ventilation and cooling fan
CN101825094B (en) Radiating fan
KR101995849B1 (en) Coolant supplying and collecting apparatus and motor comprising thr same
JP2015019549A (en) Rotor having cooling channel, and electric motor having rotor
JP2005192364A (en) Motor integrated with drive circuit
CN104145405B (en) Housing for open drip proof type electric rotating machine
KR20110131742A (en) Cooling structure of motor in electromotive compressor
JP2012100458A (en) Cooling structure for generator
JP2007104740A (en) Brushless motor
TWI627819B (en) Rotor mechanism
JP2007166814A (en) Cooling device of rotating machine having permanent magnet

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application