KR100511324B1 - Fan motor for refrigerator - Google Patents

Fan motor for refrigerator Download PDF

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Publication number
KR100511324B1
KR100511324B1 KR10-2002-0072855A KR20020072855A KR100511324B1 KR 100511324 B1 KR100511324 B1 KR 100511324B1 KR 20020072855 A KR20020072855 A KR 20020072855A KR 100511324 B1 KR100511324 B1 KR 100511324B1
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KR
South Korea
Prior art keywords
refrigerator
stator
fan motor
circuit board
laminated core
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Application number
KR10-2002-0072855A
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Korean (ko)
Other versions
KR20040044710A (en
Inventor
김한기
Original Assignee
엘지전자 주식회사
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Priority to KR10-2002-0072855A priority Critical patent/KR100511324B1/en
Publication of KR20040044710A publication Critical patent/KR20040044710A/en
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Publication of KR100511324B1 publication Critical patent/KR100511324B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0681—Details thereof

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

본 발명은 냉장고용 팬 모터에 관한 것으로서, 내부에 일정 수용공간을 갖는 케이싱과, 상기 케이싱 내부에 수용된 적층 코어 및 적층 코어의 일 측에 코일이 권취된 보빈이 구비된 고정자와, 상기 고정자의 일 측면에 위치하여 적층 코어 내부에 삽입된 회전자가 회동 가능하도록 코일에 전원을 인가시키기 위한 회로기판과, 상기 고정자와 상기 회로기판이 방수되도록 상기 케이스의 내부를 채운 충진재를 포함하여 구성됨을 특징으로 하여 침수 피해를 방지함과 아울러 가압 몰딩 시 발생하는 회로기판 및 부품의 파손을 방지하는 효과를 갖는다. The present invention relates to a fan motor for a refrigerator, comprising: a stator having a casing having a predetermined accommodation space therein; a laminated core accommodated inside the casing; and a bobbin wound with a coil wound on one side of the laminated core; It is characterized in that it comprises a circuit board for supplying power to the coil so that the rotor inserted in the laminated core is rotatable, and a filler filling the inside of the case so that the stator and the circuit board is waterproof; In addition to preventing immersion damage, it has an effect of preventing damage to circuit boards and components generated during press molding.

Description

냉장고용 팬 모터{FAN MOTOR FOR REFRIGERATOR}Fan motor for refrigerator {FAN MOTOR FOR REFRIGERATOR}

본 발명은 냉장고용 팬 모터에 관한 것으로서, 보다 상세하게는 냉장고의 고내에서 발생되는 팬 모터의 침수 피해를 방지하기 위해 비엠시(BMC: Bulk Molding Compound) 몰딩 시 사출압에 의한 고정자 및 회로기판의 파손을 방지하기 위한 냉장고용 팬 모터에 관한 것이다. The present invention relates to a fan motor for a refrigerator, and more particularly, in order to prevent flooding of a fan motor generated in a refrigerator, a stator and a circuit board of the stator and the circuit board due to injection pressure during molding of a BMC. The present invention relates to a fan motor for a refrigerator for preventing breakage.

일반적으로, 냉장고용 팬 모터는 냉장고의 열교환기에서 냉각된 냉기를 강제수환시키도록 고내에 가설됨에 따라 냉장고 고내의 온도 저하에 따라 결로된 공기중의 수분에 의한 침수피해를 방지하기 위한 방수구조가 구비된다. In general, the fan motor for the refrigerator has a waterproof structure to prevent the flooding caused by moisture in the condensed air due to the temperature drop in the refrigerator as it is hypothesized to be forced to return the cold air cooled by the heat exchanger of the refrigerator. It is provided.

이러한, 종래의 냉장고용 팬 모터를 첨부한 도면을 참조하여 설명하면, 도 1은 종래 냉장고용 팬 모터의 정면도이고, 도 2는 종래 냉장고용 팬 모터의 측단면도이다. Referring to the accompanying drawings, a conventional refrigerator fan motor, FIG. 1 is a front view of a conventional refrigerator fan motor, and FIG. 2 is a side cross-sectional view of a conventional refrigerator fan motor.

이에 도시한 바와 같이, 냉장고용 팬 모터는 다수개의 라미네이션 시트가 일정 두께를 갖도록 적층된 적층 코어(21)의 일 측에 코일이 권취된 보빈(22)이 결합된 고정자(20)와, 상기 적층 코어(21)를 관통하여 삽입되는 원통형 영구자석으로 이루어진 회전자(30)와, 상기 고정자(20)의 일 측에 위치하여 상기 회전자(30)가 회동하도록 상기 코일에 전류를 인가시켜 적층 코어(21)에 자계를 형성시키기 위한 회로기판(70)과, 상기 회전자(30)의 중심을 관통하여 압입 고정되어 구동력을 전달하는 회전축(60)과, 상기 회전축(60)을 회전 가능하게 고정하도록 베어링(50)이 구비됨과 아울러 적층 코어(21)의 양측에 각각 결합되는 엔드 브래킷(40)으로 구성된다. As shown in the drawing, a fan motor for a refrigerator includes a stator 20 to which a bobbin 22 wound with a coil is coupled to one side of a laminated core 21 in which a plurality of lamination sheets are laminated to have a predetermined thickness, and the lamination. The rotor 30 is formed of a cylindrical permanent magnet inserted through the core 21 and the laminated core by applying a current to the coil to rotate the rotor 30 is located on one side of the stator 20 A circuit board 70 for forming a magnetic field in the 21, a rotation shaft 60 that is press-fitted through the center of the rotor 30 to transmit a driving force, and the rotation shaft 60 is rotatably fixed. Bearing 50 is provided so that it is composed of end brackets 40 which are respectively coupled to both sides of the laminated core (21).

상기 고정자(20)와 상기 회로기판(70)의 외부를 비엠시(BMC, Bulk Molding Comound) 인서트 사출하여 소정의 형상을 갖는 모터의 몸체(10)를 형성함으로써 비엠시 사출물에 의한 절연성을 확보함과 더불어 침수에 대한 안정성을 확보하도록 한다.  Bulk injection molding (BMC) inserts are injected into the stator 20 and the outside of the circuit board 70 to form insulation of the non-EMC injection molding by forming the body 10 of the motor having a predetermined shape. In addition, to ensure the stability against flooding.

그러나, 이러한 비엠시 인서트 사출 성형하여 냉장고용 팬 모터의 몸체(10)를 형성함에 따라서 비엠시 인서트 사출 시 요구되는 사출압에 의해 고정자(20)와 회로기판(70)의 내부 회로 및 부품의 파손이 발생하는 문제점이 발생한다. However, the internal circuit and parts of the stator 20 and the circuit board 70 are damaged by the injection pressure required for the injection of the non-EMC insert as the body 10 of the refrigerator motor is formed by the injection molding of the non-EMC insert. This problem occurs.

상기 문제점을 해결하기 위하여 안출된 본 발명에 따르면 제조 공정 시 발생하는 내부 회로 및 부품의 파손을 방지하기 위한 냉장고용 팬 모터의 제공을 그 목적으로 한다. According to the present invention devised to solve the above problems, an object of the present invention is to provide a fan motor for a refrigerator for preventing damage to internal circuits and components generated during a manufacturing process.

상기 목적을 달성하기 위하여 본 발명은, 내부에 일정 수용공간을 갖는 케이싱과, 상기 케이싱 내부에 수용된 적층 코어(고정자 코어) 및 적층 코어의 일 측에 코일이 권취된 보빈이 구비된 고정자와, 상기 고정자의 일 측면에 위치하여 적층 코어 내부에 삽입된 회전자가 회동 가능하도록 코일에 전원을 인가시키기 위한 회로기판과, 상기 고정자와 상기 회로기판이 방수되도록 상기 케이스의 내부를 채운 비 가압성 충진재를 포함하여 구성됨을 특징으로 하는 냉장고용 팬 모터에 의해 달성된다. In order to achieve the above object, the present invention, a stator having a casing having a predetermined receiving space therein, a laminated core (stator core) and a bobbin coiled on one side of the laminated core accommodated in the casing, and Located on one side of the stator includes a circuit board for applying power to the coil so that the rotor inserted into the laminated core is rotatable, and a non-pressurized filler filling the inside of the case so that the stator and the circuit board is waterproof It is achieved by a fan motor for a refrigerator characterized in that the configuration.

이하, 본 발명의 냉장고용 팬 모터를 첨부한 도면을 참조하여 설명하면 다음과 같다. 도 3 내지 도 5는 본 발명의 일 실시예에 따른 냉장고용 팬 모터를 도시한 것으로서, 도 3은 팬 모터의 정단면도이고, 도 4는 팬 모터의 측단면도이고, 도 5는 팬 모터 배면도이다.Hereinafter, the refrigerator fan motor of the present invention will be described with reference to the accompanying drawings. 3 to 5 illustrate a fan motor for a refrigerator according to an embodiment of the present invention, FIG. 3 is a front sectional view of the fan motor, FIG. 4 is a side sectional view of the fan motor, and FIG. 5 is a rear view of the fan motor. to be.

이에 도시한 바와 같이, 본 발명의 일 실시예에 따른 냉장고용 팬 모터는 좌, 우측이 복개되어 내부에 일정 수용공간을 갖는 케이싱(110)과, 상기 케이싱(110) 내부에 수용된 적층 코어(121) 및 적층 코어(121)의 일 측에 코일이 권취된 보빈(122)이 구비된 고정자(120)와, 상기 적층 코어(121)를 관통하여 삽입된 회전자(130)와, 상기 회전자(130)의 중심을 관통하여 압입 고정됨과 아울러 양단이 상기 케이싱(110)의 양측면에 안착 고정된 베어링(150)에 의하여 회전자(130)와 연동 가능하게 고정되는 회전축(140)과, 상기 고정자(120)의 일 측면에 위치하여 적층 코어(121) 내부에 삽입된 회전자(130)가 회동 가능하도록 코일에 전원을 인가시키기 위한 회로기판(170)과, 상기 고정자(120)와 상기 회로기판(170)이 절연 및 방수되도록 상기 케이싱(110)의 내부를 채운 비 가압성 충진재(200)를 구성된다. As shown in the drawing, a fan motor for a refrigerator according to an embodiment of the present invention has a left side and a right side, and a casing 110 having a predetermined accommodation space therein and a laminated core 121 accommodated in the casing 110. And a stator 120 having a bobbin 122 wound around a coil on one side of the laminated core 121, a rotor 130 inserted through the laminated core 121, and the rotor ( Rotating through the center of the 130 and the rotating shaft 140 is fixed to be interlocked with the rotor 130 by the bearing 150 is fixed on both sides of the casing 110, both ends and the stator ( Located on one side of the 120 and the circuit board 170 for applying power to the coil so that the rotor 130 inserted into the laminated core 121 is rotatable, the stator 120 and the circuit board ( Non-pressurized filling the interior of the casing 110 to insulate and waterproof 170 It consists of a 200.

이와 같은 구성에 의하여 상기 충진재(200)는 상기 고정자(120)와 회로기판(170)이 수용된 상기 케이싱(110) 내부에 우레탄을 몰딩시켜 고정자(120)와 회로기판(170)을 절연시킴과 아울러 침수에 의한 파손을 방지하도록 한다. By such a configuration, the filler 200 insulates the stator 120 and the circuit board 170 by molding a urethane into the casing 110 in which the stator 120 and the circuit board 170 are accommodated. Prevent damage by immersion.

그리고, 상기 케이싱(110) 내부에 위치고정부재(160)를 구비하여 사기 고정자(120)와 회로기판(170)이 우레탄 융해액을 부어 충진 시 우레탄 융해액의 부력에 의해 고정자(120)와 회로기판(170)의 고정 위치를 이탈되는 것을 방지하도록 한다. In addition, the stator 120 and the circuit board 170 are provided with the position fixing member 160 inside the casing 110 to pour the urethane melt into the stator 120 by the buoyancy force of the urethane melt. It is possible to prevent the departure from the fixed position of the substrate 170.

한편, 상기 케이싱(110)은 바닥면 저부를 관통하여 적어도 하나 이상의 배수공을 형성하여 좌, 우 케이싱 결합부 및 각 전원 입출력 통공 등을 통해 냉장고의 고내에서 침투한 수분과 팬 모터의 케이싱 내부 결노에 의해 발생된 수분을 배출하도록 한다. On the other hand, the casing 110 penetrates the bottom of the bottom to form at least one drain hole so that the left and right casing coupling parts and each power input / output through hole may penetrate moisture inside the refrigerator of the refrigerator and the casing internal fan of the fan motor. Try to drain the moisture generated by it.

이상 설명한 바와 같이, 본 발명에 따르면, 고정자 및 회로기판이 침수에 의한 파손을 방지하도록 고정자와 회로기판이 수용된 케이싱의 내부에 우레탄을 충진시켜 내부회로 및 부품의 파손을 저감시켜 제품의 신뢰성을 향상시키는 효과를 갖는다. As described above, according to the present invention, urethane is filled in the casing in which the stator and the circuit board are accommodated so that the stator and the circuit board are prevented from being flooded, thereby reducing damage to the internal circuits and components, thereby improving reliability of the product. It has an effect to make.

도 1은 종래 냉장고용 팬 모터의 정면도,1 is a front view of a conventional fan motor for a refrigerator,

도 2는 종래 냉장고용 팬 모터의 측단면도, 2 is a side cross-sectional view of a conventional refrigerator fan motor,

도 3은 본 발명 냉장고용 팬 모터의 정단면도, 3 is a front sectional view of a fan motor for a refrigerator according to the present invention;

도 4는 본 발명 냉장고용 팬 모터의 측단면도,4 is a side cross-sectional view of a fan motor for a refrigerator according to the present invention;

도 5는 본 발명 냉장고용 팬 모터 케이싱의 배면도,5 is a rear view of the fan motor casing for the present invention refrigerator;

*도면의 주요부분에 대한 설명** Description of the main parts of the drawings *

110: 케이싱 111: 배수공110: casing 111: drain hole

120: 고정자 121: 적층코어120: stator 121: laminated core

122: 보빈 130: 회전자122: bobbin 130: rotor

140: 회전축 150: 베어링140: rotating shaft 150: bearing

160: 위치고정부재 200: 충진재160: position fixing member 200: filler

Claims (4)

내부에 일정 수용공간을 갖는 케이싱과,Casing having a certain receiving space therein, 상기 케이싱 내부에 수용된 적층 코어 및 적층 코어의 일 측에 코일이 권취된 보빈이 구비된 고정자와, A stator including a laminated core accommodated inside the casing and a bobbin having a coil wound around one side of the laminated core; 상기 고정자의 일 측면에 위치하여 적층 코어 내부에 삽입된 회전자가 회동 가능하도록 코일에 전원을 인가시키기 위한 회로기판과, A circuit board positioned on one side of the stator to apply power to the coil so that the rotor inserted into the laminated core can rotate; 상기 고정자와 상기 회로기판이 방수되도록 상기 케이스의 내부를 채운 비 가압성 충진재를 포함하여 구성됨을 특징으로 하는 냉장고용 팬 모터. And a non-pressurized filler filling the inside of the case to waterproof the stator and the circuit board. 제 1항에 있어서, The method of claim 1, 상기 충진재는 몰딩시 비 가압성인 우레탄으로 구성됨을 특징으로 하는 냉장고용 팬 모터.The filler is a fan motor for a refrigerator, characterized in that consisting of urethane that is not pressurized during molding. 제 1항에 있어서,  The method of claim 1, 상기 케이스 내부에 몰딩시 고정자 및 회로기판의 위치를 고정시키기 위한 위치고정부재가 구비됨을 특징으로 하는 냉장고용 팬 모터.Refrigerator fan motor, characterized in that the position fixing member for fixing the position of the stator and the circuit board when molding in the case. 제 1항에 있어서, The method of claim 1, 상기 케이스는 저면을 관통하는 배수공이 형성됨을 특징으로 하는 냉장고용 팬 모터. The case is a fan motor for a refrigerator, characterized in that the drain hole is formed through the bottom surface.
KR10-2002-0072855A 2002-11-21 2002-11-21 Fan motor for refrigerator KR100511324B1 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9407120B2 (en) 2014-09-05 2016-08-02 New Motech Co., Ltd. Fan motor
US9413203B2 (en) 2014-09-05 2016-08-09 New Motech Co., Ltd. Fan motor
US9419493B2 (en) 2013-12-13 2016-08-16 New Motech Co., Ltd. Bearing seal for fan motor
US9461516B2 (en) 2013-09-13 2016-10-04 New Motech Co., Ltd. Fan motor
US9641041B2 (en) 2012-09-17 2017-05-02 New Motech Co., Ltd. Fan motor
US9641042B2 (en) 2013-02-25 2017-05-02 New Motech Co., Ltd. Fan motor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02250648A (en) * 1989-03-22 1990-10-08 Mitsubishi Electric Corp Motor
KR940027693U (en) * 1993-05-19 1994-12-10 Resin Pack Moter
KR20010055243A (en) * 1999-12-10 2001-07-04 정복민 Waterproofing for driving motor of fan
KR20040039746A (en) * 2002-11-04 2004-05-12 엘지전자 주식회사 Water resist structure for pan-motor to refrigerator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02250648A (en) * 1989-03-22 1990-10-08 Mitsubishi Electric Corp Motor
KR940027693U (en) * 1993-05-19 1994-12-10 Resin Pack Moter
KR20010055243A (en) * 1999-12-10 2001-07-04 정복민 Waterproofing for driving motor of fan
KR20040039746A (en) * 2002-11-04 2004-05-12 엘지전자 주식회사 Water resist structure for pan-motor to refrigerator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9641041B2 (en) 2012-09-17 2017-05-02 New Motech Co., Ltd. Fan motor
US9641042B2 (en) 2013-02-25 2017-05-02 New Motech Co., Ltd. Fan motor
US9461516B2 (en) 2013-09-13 2016-10-04 New Motech Co., Ltd. Fan motor
US9419493B2 (en) 2013-12-13 2016-08-16 New Motech Co., Ltd. Bearing seal for fan motor
US9407120B2 (en) 2014-09-05 2016-08-02 New Motech Co., Ltd. Fan motor
US9413203B2 (en) 2014-09-05 2016-08-09 New Motech Co., Ltd. Fan motor

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