WO2017171158A1 - Obc module assembly for electric vehicle - Google Patents

Obc module assembly for electric vehicle Download PDF

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Publication number
WO2017171158A1
WO2017171158A1 PCT/KR2016/010127 KR2016010127W WO2017171158A1 WO 2017171158 A1 WO2017171158 A1 WO 2017171158A1 KR 2016010127 W KR2016010127 W KR 2016010127W WO 2017171158 A1 WO2017171158 A1 WO 2017171158A1
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Prior art keywords
inductor
obc
electric vehicle
module assembly
housing
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PCT/KR2016/010127
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French (fr)
Korean (ko)
Inventor
이승훈
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엘에스산전 주식회사
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Publication of WO2017171158A1 publication Critical patent/WO2017171158A1/en

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    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the present invention relates to an OBC module assembly for an electric vehicle with improved heat dissipation efficiency.
  • green vehicles Recently, as the demand for green vehicles increases, various green vehicles have been developed and used. Representative examples include hybrid cars using electricity as a driving source of a vehicle or electric motor cars using only a battery as a driving source.
  • an on-board charger is mounted in the electric vehicle to charge a battery built in the vehicle.
  • the OBC is provided as a module in which components such as inductors and PCB boards are concentrated in a housing to reduce volume. Therefore, the heat source generated from the components during the charging of the battery is concentrated in the housing, there is a problem that the temperature inside the housing rises.
  • An object of the present invention is to provide an OBC module assembly for an electric vehicle with improved heat dissipation efficiency by mounting a heat dissipation pad in which an inductor is seated inside the OBC housing.
  • the OBC module assembly for an electric vehicle for charging an electric vehicle battery, and includes an OBC housing, a heat dissipation pad, an inductor case, and a molding part.
  • the OBC housing has a built-in PCB board.
  • the heat pad is seated on the inner bottom of the OBC housing.
  • the inductor is mounted on top of the heat dissipation pad and consists of a core and a coil wound around the core to be electrically connected to the PCB substrate.
  • the inductor case is formed to open downward to surround the inductor at an upper portion thereof, and a molding material injection hole for dissipating the inductor is provided at an upper end thereof. The molding part is injected and filled into the inductor case through the molding material injection hole.
  • the OBC module assembly for an electric vehicle is provided with a heat dissipation pad in contact with the inductor in the OBC housing, thereby obtaining a heat dissipation effect by heat conduction, thereby increasing heat dissipation efficiency.
  • the coil of the inductor can be arranged at a predetermined position, thereby improving the assemblability with the PCB substrate disposed on the inductor. do.
  • the molding part is formed to be in contact with the inductor and the inductor case, it is possible to obtain a heat dissipation effect due to heat conduction and thus to more efficiently discharge the heat source generated in the inductor.
  • the inductor case can be arranged at a predetermined position, thereby improving the assembling with the OBC housing. do.
  • FIG. 1 is a view showing the inside of the OBC module assembly for an electric vehicle according to an embodiment of the present invention.
  • FIG. 2 is a perspective view illustrating an inductor case shown in FIG. 1.
  • FIG. 3 is an exploded perspective view of the inductor case in FIG. 2;
  • FIG. 4 is a cross-sectional view of the inductor case of FIG. 2;
  • FIG. 1 is a view showing the interior of the OBC module assembly for an electric vehicle according to an embodiment of the present invention.
  • 2 is an exploded perspective view of the inductor case shown in FIG. 1
  • FIG. 3 is an exploded perspective view of the inductor case
  • FIG. 4 is a cross-sectional view of the inductor case.
  • the on-board charger module assembly 100 for an electric vehicle is for charging an electric vehicle battery, and includes an OBC housing 110, a heat dissipation pad 120, An inductor 130, an inductor case 140, and a molding unit 150 are included.
  • the PCB substrate 111 is mounted inside the OBC housing 110.
  • the PCB board 111 is a wiring board having a conductor pattern on one or both surfaces thereof, and each element of the OBC module may be electrically connected to the PCB board 111.
  • the heat dissipation pad 120 is seated on the inner bottom of the OBC housing 110. More specifically, the heat dissipation pad 120 may be tacky as a heat conductive material and be detachably formed on the OBC housing 110.
  • the heat radiation pad 120 may be any one as long as it has thermal conductivity and adhesiveness, but it is preferable that the heat radiation pad 120 is made of a gap pad manufactured by Bergquist.
  • the heat radiation pad 120 is formed to be adhesive, it can be fixed to the OBC housing 110 without a separate fastening member, it can be repeatedly detached to the OBC housing 110.
  • the inductor 130 is mounted on an upper portion of the heat dissipation pad 120, and is electrically connected to the PCB substrate 111 by being formed of a core 131 and a coil 132 wound around the core 131. In this case, the inductor 130 may be electrically connected to the PCB substrate 111 through a soldering method.
  • the inductor case 140 is formed to open downward to surround the inductor 130 at an upper portion thereof, and a molding material injection hole 141 for dissipating the inductor 130 is provided at an upper end thereof. More specifically, the inductor case 140 may be formed in a hollow cylindrical shape having a lower opening, and the bottom surface thereof may be in contact with the heat radiating pad 120. At this time, since the heat radiation pad 120 has adhesiveness, the inductor case 140 can be fixed to the top of the heat radiation pad 120 without a separate fastening member.
  • the inductor case 140 may further include a drawing hole 142 through which the coil 132 of the inductor 130 is drawn out. As the extraction hole 142 is formed at the upper end of the inductor case 140 as described above, the coil 132 of the inductor 130 may be disposed at a predetermined position so that the PCB substrate disposed on the inductor 130 ( It is possible to improve the assembly with the 111).
  • the inductor case 140 may be formed of a resin material to insulate the OBC housing 110 and the inductor 130.
  • the molding part 150 may be formed by injecting, filling, and curing the molding material into the inductor case 140 through the molding material injection hole 141.
  • the molding part 150 may be formed of one selected from epoxy, silicon, and urethane.
  • the molding part 150 As the molding part 150 is charged inside the inductor case 140, it is possible to prevent dust or moisture from penetrating into the inductor case 140 to increase the life of the inductor 130. do.
  • the molding unit 150 since the molding unit 150 is charged between the inductor 130 and the inductor case 140, a heat dissipation effect may be obtained by conduction, and thus the heat source generated by the inductor 130 may be more efficiently discharged.
  • the inductor case 140 may include an air outlet 143 for discharging the air in the OBC housing 110 to the outside when the injection molding material on the top. This is to increase the heat dissipation efficiency by preventing pores in the molding material when the molding material is injected. That is, when the molding material is injected into the inductor case 140, the air inside the inductor case 140 is discharged to the outside through the air outlet 143. Accordingly, since no pores are formed in the molding material, the thermal conductivity is increased to increase the heat radiation efficiency.
  • the shape and size of the air outlet 143 is not limited, but preferably made of the same shape as the molding material injection hole 141. This is to use the air outlet 143 as a combination of the molding material inlet 141.
  • the molding material injection hole 141 is used as an air outlet for discharging the air inside the inductor case 140 to the outside.
  • the inductor case 140 may be fixed to the OBC housing 110 through the fastening member 10. More specifically, the fixing member 144 having the fixing hole 144a may be formed to protrude outward from the outer circumferential surface of the inductor case 140. In addition, a nut member 112 inserted into the fixing hole 144a may be formed to protrude upward from the inner lower end of the OBC housing 110.
  • the inductor case 140 is the OBC housing 110. It can be fixed to.
  • the inductor case 140 As such, as the inductor case 140 is fixed to the OBC housing 110 through the fastening member 10 such as a bold, it is possible to prevent the inductor 130 from being damaged by the vibration of the vehicle.
  • the inductor case 140 pressurizes the heat radiating pad 120 when the fastening member 10 is assembled, the contact area between the heat radiating pad 120 and the OBC housing 110 is increased to increase heat radiating efficiency. Will be.
  • At least one guide member 145 protrudes from a bottom surface of the inductor case 140, and at least one guide groove (not shown) into which the guide member 145 is inserted is formed at an inner lower end of the OBC housing 110. Can be formed.
  • the inductor case 140 may be disposed at a predetermined position, thereby improving the assemblability with the OBC housing 110.
  • the OBC module assembly 100 for an electric vehicle is provided with a heat dissipation pad 120 in contact with the inductor 130 inside the OBC housing 110, thereby obtaining a heat dissipation effect by heat conduction. It is possible to increase the heat radiation efficiency.
  • the coil 132 of the inductor 130 may be disposed at a predetermined position.
  • assembling with the PCB substrate 111 disposed on the inductor 130 may be improved.
  • the inductor 130 may prevent dust or moisture from penetrating into the inductor case 140. It is possible to increase the life of the.
  • the molding part 150 is formed to be in contact with the inductor 130 and the inductor case 140, it is possible to obtain a heat dissipation effect due to heat conduction, thereby more efficiently dissipating the heat source generated in the inductor 130. Will be.
  • the inductor case 140 is disposed at a predetermined position. It becomes possible to improve the assembly with the OBC housing 110.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The present invention relates to an OBC module assembly for an electric vehicle having an improved heat-dissipation efficiency. The OBC module assembly for an electric vehicle is for charging a battery for an electric vehicle, and comprises an OBC housing, a heat-dissipation pad, an inductor case and a moulding part. The OBC housing has a PCB substrate mounted therein. The heat-dissipation pad is placed in a lower end inside the OBC housing. The inductor is placed in an upper part of the heat-dissipation pad, is composed of a core and a coil wound around the core, and is thereby electrically connected to the PCB substrate. The inductor case is formed to have an opened lower part for wrapping the inductor in an upper part thereof, and a moulding material injection hole for dissipating heat of the inductor arranged in an upper end thereof. Regarding the moulding part, the moulding material is injected and filled inside the inductor case through the moulding material injection hole.

Description

전기자동차용 OBC 모듈 어셈블리OBC Module Assembly for Electric Vehicles
본 발명은 방열 효율이 향상된 전기자동차용 OBC 모듈 어셈블리에 관한 것이다.The present invention relates to an OBC module assembly for an electric vehicle with improved heat dissipation efficiency.
최근 친환경 차량에 대한 수요가 높아지면서 각종 친환경 차량이 개발되어 사용되고 있다. 대표적인 예로는 전기를 차량의 구동원으로 사용하는 하이브리드 자동차나 배터리만을 구동원으로 이용하는 전기모터 자동차 등이 있다. Recently, as the demand for green vehicles increases, various green vehicles have been developed and used. Representative examples include hybrid cars using electricity as a driving source of a vehicle or electric motor cars using only a battery as a driving source.
이러한 전기 자동차들은 배터리를 연료원으로 사용하고, 모터를 구동원으로 사용한다. 따라서, 전기 자동차 내에는 차량에 내장된 배터리를 충전하기 위한 차량 탑재형 충전기(OBC: On Board Charger)가 탑재된다. These electric vehicles use a battery as a fuel source and a motor as a driving source. Therefore, an on-board charger (OBC) is mounted in the electric vehicle to charge a battery built in the vehicle.
이러한 OBC는 부피를 감소시키기 위해 인덕터와 PCB 기판 같은 부품들이 하우징 내에 밀집되어 있는 형태의 모듈로 제공된다. 따라서, 배터리의 충전시 부품들에서 발생하는 열원이 하우징 내에 집중적으로 모이게 되어 하우징 내부의 온도가 상승하는 문제가 있다. The OBC is provided as a module in which components such as inductors and PCB boards are concentrated in a housing to reduce volume. Therefore, the heat source generated from the components during the charging of the battery is concentrated in the housing, there is a problem that the temperature inside the housing rises.
이처럼 하우징 내부의 온도가 상승하게 되면 하우징 내에 배치된 인덕터의 정상 작동에 많은 문제를 야기하게 되고, 인덕터의 수명을 단축시키는 문제가 있다.As such, when the temperature inside the housing rises, it causes many problems in the normal operation of the inductor disposed in the housing, and shortens the life of the inductor.
본 발명의 과제는 OBC 하우징의 내부에 인덕터가 안착되는 방열패드를 장착함으로써 방열효율이 향상된 전기자동차용 OBC 모듈 어셈블리를 제공함에 있다.An object of the present invention is to provide an OBC module assembly for an electric vehicle with improved heat dissipation efficiency by mounting a heat dissipation pad in which an inductor is seated inside the OBC housing.
상기의 과제를 달성하기 위한 본 발명에 따른 전기자동차용 OBC 모듈 어셈블리는 전기자동차용 배터리의 충전을 위한 것으로, OBC 하우징과, 방열패드와, 인덕터 케이스, 및 몰딩부를 포함한다. OBC 하우징은 PCB 기판이 내장된다. 방열패드는 OBC 하우징의 내측 하단에 안착된다. 인덕터는 방열패드의 상부에 안착되며, 코어와 코어의 주위에 권취된 코일로 이루어져 PCB 기판과 전기적으로 연결된다. 인덕터 케이스는 하방이 개구되어 인덕터를 상부에서 감싸도록 형성되고, 상단에 인덕터의 방열을 위한 몰딩재 주입구가 구비된다. 몰딩부는 몰딩재 주입구를 통해 몰딩재가 인덕터 케이스 내로 주입 및 충전된다.The OBC module assembly for an electric vehicle according to the present invention for achieving the above object is for charging an electric vehicle battery, and includes an OBC housing, a heat dissipation pad, an inductor case, and a molding part. The OBC housing has a built-in PCB board. The heat pad is seated on the inner bottom of the OBC housing. The inductor is mounted on top of the heat dissipation pad and consists of a core and a coil wound around the core to be electrically connected to the PCB substrate. The inductor case is formed to open downward to surround the inductor at an upper portion thereof, and a molding material injection hole for dissipating the inductor is provided at an upper end thereof. The molding part is injected and filled into the inductor case through the molding material injection hole.
본 발명에 따르면, 전기자동차용 OBC 모듈 어셈블리는 OBC 하우징 내부에 인덕터와 접촉되는 방열패드를 구비함에 따라, 열 전도에 의한 방열효과를 얻을 수 있게 되어 방열효율을 증대시킬 수 있게 된다. According to the present invention, the OBC module assembly for an electric vehicle is provided with a heat dissipation pad in contact with the inductor in the OBC housing, thereby obtaining a heat dissipation effect by heat conduction, thereby increasing heat dissipation efficiency.
또한, 인덕터 케이스의 상단에 인덕터의 코일이 인출되는 인출 홀을 형성함에 따라, 인덕터의 코일을 미리 정해진 위치에 배치시킬 수 있게 되어 인덕터의 상부에 배치되는 PCB 기판과의 조립성을 향상시킬 수 있게 된다. In addition, by forming an extraction hole through which the coil of the inductor is drawn out on the top of the inductor case, the coil of the inductor can be arranged at a predetermined position, thereby improving the assemblability with the PCB substrate disposed on the inductor. do.
또한, 인덕터 케이스 내부에 몰딩재를 충전 및 경화여 몰딩부를 형성함에 따라, 먼지나 수분이 인덕터 케이스의 내부로 침투하는 것을 방지할 수 있게 되어 인덕터의 수명을 증대시킬 수 있게 된다. In addition, by filling and curing the molding material in the inductor case to form the molding part, it is possible to prevent dust or moisture from penetrating into the inductor case, thereby increasing the life of the inductor.
또한, 몰딩부가 인덕터 및 인덕터 케이스와 맞닿게 형성되므로, 열 전도에 의한 방열효과를 얻을 수 있게 되어 인덕터에서 발생하는 열원을 보다 효율적으로 방출할 수 있게 된다. In addition, since the molding part is formed to be in contact with the inductor and the inductor case, it is possible to obtain a heat dissipation effect due to heat conduction and thus to more efficiently discharge the heat source generated in the inductor.
또한, 인덕터 케이스의 상단에 몰딩재의 주입시 OBC 하우징 내의 공기를 외부로 배출하기 위한 공기 배출구를 형성함에 따라, 몰딩재의 주입시 몰딩재에 기공이 생성되는 것을 방지하여 열 전도율을 증가시킬 수 있게 된다. In addition, by forming an air outlet for discharging the air in the OBC housing to the outside during injection of the molding material on the top of the inductor case, it is possible to increase the thermal conductivity by preventing the formation of pores in the molding material during injection of the molding material. .
또한, 체결부재를 통해 인덕터 케이스를 OBC 하우징에 고정시킴에 따라, 차량의 진동으로 인한 인덕터의 파손을 미연에 방지할 수 있게 된다. In addition, by fixing the inductor case to the OBC housing through the fastening member, it is possible to prevent damage to the inductor due to vibration of the vehicle.
아울러, 인덕터 케이스의 저면에 가이드 부재를 형성하고 OBC 하우징에 가이드 부재가 삽입되는 가이드 홈을 형성함에 따라, 미리 정해진 위치에 인덕터 케이스를 배치시킬 수 있게 되어 OBC 하우징과의 조립성을 향상시킬 수 있게 된다.In addition, as the guide member is formed on the bottom surface of the inductor case and the guide groove into which the guide member is inserted into the OBC housing, the inductor case can be arranged at a predetermined position, thereby improving the assembling with the OBC housing. do.
도 1은 본 발명의 일 실시예에 따른 전기자동차용 OBC 모듈 어셈블리의 내부를 도시한 도면. 1 is a view showing the inside of the OBC module assembly for an electric vehicle according to an embodiment of the present invention.
도 2는 도 1에 도시된 인덕터 케이스를 발췌하여 도시한 사시도. FIG. 2 is a perspective view illustrating an inductor case shown in FIG. 1.
도 3은 도 2에 있어서, 인덕터 케이스의 분해 사시도. 3 is an exploded perspective view of the inductor case in FIG. 2;
도 4는 도 2에 있어서, 인덕터 케이스의 단면도.4 is a cross-sectional view of the inductor case of FIG. 2;
이하 첨부된 도면을 참조하여, 바람직한 실시예에 따른 전기자동차용 OBC 모듈 어셈블리에 대해 상세히 설명하면 다음과 같다. 여기서, 동일한 구성에 대해서는 동일부호를 사용하며, 반복되는 설명, 발명의 요지를 불필요하게 흐릴 수 있는 공지 기능 및 구성에 대한 상세한 설명은 생략한다. 발명의 실시형태는 당업계에서 평균적인 지식을 가진 자에게 본 발명을 보다 완전하게 설명하기 위해서 제공되는 것이다. 따라서, 도면에서의 요소들의 형상 및 크기 등은 보다 명확한 설명을 위해 과장될 수 있다. Hereinafter, an OBC module assembly for an electric vehicle according to a preferred embodiment will be described in detail with reference to the accompanying drawings. Here, the same reference numerals are used for the same configurations, and detailed descriptions of well-known functions and configurations that may unnecessarily obscure the repeated description and the subject matter of the invention will be omitted. Embodiments of the invention are provided to more completely describe the present invention to those skilled in the art. Accordingly, the shape and size of elements in the drawings may be exaggerated for clarity.
도 1은 본 발명의 일 실시예에 따른 전기자동차용 OBC 모듈 어셈블리의 내부를 도시한 도면이다. 그리고, 도 2는 도 1에 도시된 인덕터 케이스를 발췌하여 도시한 사시도이고, 도 3은 인덕터 케이스의 분해 사시도이며, 도 4는 인덕터 케이스의 단면도이다. 1 is a view showing the interior of the OBC module assembly for an electric vehicle according to an embodiment of the present invention. 2 is an exploded perspective view of the inductor case shown in FIG. 1, FIG. 3 is an exploded perspective view of the inductor case, and FIG. 4 is a cross-sectional view of the inductor case.
도 1 내지 도 4에 도시된 바와 같이, 전기자동차용 OBC(On Board Charger) 모듈 어셈블리(100)는 전기자동차용 배터리의 충전을 위한 것으로, OBC 하우징(110)과, 방열패드(120)와, 인덕터(130)와, 인덕터 케이스(140), 및 몰딩부(150)를 포함한다. As shown in FIGS. 1 to 4, the on-board charger module assembly 100 for an electric vehicle is for charging an electric vehicle battery, and includes an OBC housing 110, a heat dissipation pad 120, An inductor 130, an inductor case 140, and a molding unit 150 are included.
OBC 하우징(110)의 내부에는 PCB 기판(111)이 장착된다. PCB 기판(111)은 일면 또는 양면에 도체 패턴이 있는 배선판으로, OBC 모듈의 각 소자들이 PCB 기판(111) 상에 전기적으로 연결될 수 있다. The PCB substrate 111 is mounted inside the OBC housing 110. The PCB board 111 is a wiring board having a conductor pattern on one or both surfaces thereof, and each element of the OBC module may be electrically connected to the PCB board 111.
방열패드(120)는 OBC 하우징(110)의 내측 하단에 안착된다. 보다 구체적으로, 방열패드(120)는 열 전도성 소재로 점착성을 가지며, OBC 하우징(110)에 탈착 가능하게 형성될 수 있다. 여기서, 방열패드(120)는 열 전도성 및 점착성을 갖는 것이라면 어느 것이나 가능하나 Bergquist사에서 제조된 갭 패드(Gap Pad)로 이루어지는 것이 바람직하다. The heat dissipation pad 120 is seated on the inner bottom of the OBC housing 110. More specifically, the heat dissipation pad 120 may be tacky as a heat conductive material and be detachably formed on the OBC housing 110. Here, the heat radiation pad 120 may be any one as long as it has thermal conductivity and adhesiveness, but it is preferable that the heat radiation pad 120 is made of a gap pad manufactured by Bergquist.
이처럼 방열패드(120)가 점착성을 갖도록 형성됨에 따라 별도의 체결부재 없이도 OBC 하우징(110)에 고정시킬 수 있으며, OBC 하우징(110)에 반복적으로 탈착 할 수 있게 된다. Thus, as the heat radiation pad 120 is formed to be adhesive, it can be fixed to the OBC housing 110 without a separate fastening member, it can be repeatedly detached to the OBC housing 110.
인덕터(130)는 방열패드(120)의 상부에 안착되며, 코어(131)와, 코어(131)의 주위에 권취된 코일(132)로 이루어져 PCB 기판(111)과 전기적으로 연결된다. 이때, 인덕터(130)는 PCB 기판(111)에 솔더링 방법을 통해 전기적으로 연결될 수 있다. The inductor 130 is mounted on an upper portion of the heat dissipation pad 120, and is electrically connected to the PCB substrate 111 by being formed of a core 131 and a coil 132 wound around the core 131. In this case, the inductor 130 may be electrically connected to the PCB substrate 111 through a soldering method.
인덕터 케이스(140)는 하방이 개구되어 인덕터(130)를 상부에서 감싸도록 형성되고, 상단에 인덕터(130)의 방열을 위한 몰딩재 주입구(141)가 구비된다. 보다 구체적으로, 인덕터 케이스(140)는 하방이 개구된 중공의 원기둥 형상으로 형성되며, 저면이 방열패드(120)와 맞닿게 형성될 수 있다. 이때, 방열패드(120)는 점착성을 가지므로 별도의 체결부재 없이도 인덕터 케이스(140)를 방열패드(120)의 상부에 고정시킬 수 있게 된다.The inductor case 140 is formed to open downward to surround the inductor 130 at an upper portion thereof, and a molding material injection hole 141 for dissipating the inductor 130 is provided at an upper end thereof. More specifically, the inductor case 140 may be formed in a hollow cylindrical shape having a lower opening, and the bottom surface thereof may be in contact with the heat radiating pad 120. At this time, since the heat radiation pad 120 has adhesiveness, the inductor case 140 can be fixed to the top of the heat radiation pad 120 without a separate fastening member.
인덕터 케이스(140)는 상단에 인덕터(130)의 코일(132)이 인출되는 인출 홀(142)을 더 포함할 수 있다. 이처럼 인덕터 케이스(140)의 상단에 인출 홀(142)이 형성됨에 따라, 인덕터(130)의 코일(132)을 미리 정해진 위치에 배치시킬 수 있게 되어 인덕터(130)의 상부에 배치되는 PCB 기판(111)과의 조립성을 향상시킬 수 있게 된다. The inductor case 140 may further include a drawing hole 142 through which the coil 132 of the inductor 130 is drawn out. As the extraction hole 142 is formed at the upper end of the inductor case 140 as described above, the coil 132 of the inductor 130 may be disposed at a predetermined position so that the PCB substrate disposed on the inductor 130 ( It is possible to improve the assembly with the 111).
한편, OBC 하우징(110)과 인덕터(130)의 절연을 위해 인덕터 케이스(140)는 수지 소재로 형성되는 것이 바람직하다. Meanwhile, the inductor case 140 may be formed of a resin material to insulate the OBC housing 110 and the inductor 130.
몰딩부(150)는 몰딩재 주입구(141)를 통해 몰딩재가 인덕터 케이스(140) 내로 주입 및 충전되고 경화됨으로써 형성될 수 있다. 여기서, 몰딩부(150)는 에폭시, 실리콘, 우레탄 중 선택된 하나로 형성될 수 있다. The molding part 150 may be formed by injecting, filling, and curing the molding material into the inductor case 140 through the molding material injection hole 141. Here, the molding part 150 may be formed of one selected from epoxy, silicon, and urethane.
이처럼 인덕터 케이스(140) 내부에 몰딩부(150)가 충전됨에 따라, 인덕터 케이스(140) 내부로 먼지나 수분이 내부로 침투하는 것을 방지할 수 있게 되어 인덕터(130)의 수명을 증대시킬 수 있게 된다. As the molding part 150 is charged inside the inductor case 140, it is possible to prevent dust or moisture from penetrating into the inductor case 140 to increase the life of the inductor 130. do.
또한, 몰딩부(150)가 인덕터(130)와 인덕터 케이스(140) 사이에 충전되므로 전도에 의한 방열효과를 얻을 수 있어, 인덕터(130)에서 발생하는 열원을 보다 효율적으로 방출할 수 있게 된다. In addition, since the molding unit 150 is charged between the inductor 130 and the inductor case 140, a heat dissipation effect may be obtained by conduction, and thus the heat source generated by the inductor 130 may be more efficiently discharged.
한편, 인덕터 케이스(140)는 상단에 몰딩재의 주입시 OBC 하우징(110) 내의 공기를 외부로 배출하기 위한 공기 배출구(143)를 포함할 수 있다. 이는 몰딩재의 주입시 몰딩재에 기공이 생기지 않도록 하여 방열 효율을 증대시키기 위함이다. 즉, 인덕터 케이스(140) 내부로 몰딩재를 주입하면 인덕터 케이스(140) 내부의 공기가 공기 배출구(143)를 통해 외부로 배출된다. 이에 따라, 몰딩재에 기공이 생성되지 않아 열 전도율이 증가되어 방열효율이 증대되는 것이다. On the other hand, the inductor case 140 may include an air outlet 143 for discharging the air in the OBC housing 110 to the outside when the injection molding material on the top. This is to increase the heat dissipation efficiency by preventing pores in the molding material when the molding material is injected. That is, when the molding material is injected into the inductor case 140, the air inside the inductor case 140 is discharged to the outside through the air outlet 143. Accordingly, since no pores are formed in the molding material, the thermal conductivity is increased to increase the heat radiation efficiency.
이때, 공기 배출구(143)의 형상 및 크기는 한정되지 않으나, 몰딩재 주입구(141)와 동일한 형상으로 이루어지는 것이 바람직하다. 이는, 공기 배출구(143)를 몰딩재 주입구(141)의 겸용으로 사용하기 위함이다. 이처럼 공기 배출구(143)를 통해 몰딩재를 주입시킬 경우에는 몰딩재 주입구(141)가 인덕터 케이스(140) 내부의 공기를 외부로 배출시키기 위한 공기 배출구로 활용되는 것은 자명한 사실이다. At this time, the shape and size of the air outlet 143 is not limited, but preferably made of the same shape as the molding material injection hole 141. This is to use the air outlet 143 as a combination of the molding material inlet 141. When the molding material is injected through the air outlet 143 as described above, it is obvious that the molding material injection hole 141 is used as an air outlet for discharging the air inside the inductor case 140 to the outside.
또다른 실시예에 따르면, 인덕터 케이스(140)는 OBC 하우징(110)에 체결부재(10)를 통해 고정될 수 있다. 보다 구체적으로, 인덕터 케이스(140)의 외주면에는 고정 홀(144a)이 형성된 고정부재(144)가 외측으로 돌출 형성될 수 있다. 그리고, OBC 하우징(110)의 내측 하단에는 고정 홀(144a)에 삽입되는 너트부재(112)가 상부로 돌출 형성될 수 있다. According to another embodiment, the inductor case 140 may be fixed to the OBC housing 110 through the fastening member 10. More specifically, the fixing member 144 having the fixing hole 144a may be formed to protrude outward from the outer circumferential surface of the inductor case 140. In addition, a nut member 112 inserted into the fixing hole 144a may be formed to protrude upward from the inner lower end of the OBC housing 110.
이에 따라, 너트부재(112)가 고정 홀(144a)에 삽입된 상태에서 너트부재(112)에 볼트와 같은 체결부재(10)를 삽입시킨 후 조이게 되면 인덕터 케이스(140)는 OBC 하우징(110)에 고정될 수 있게 된다. Accordingly, when the nut member 112 is inserted into the fixing hole 144a and then tightened after inserting the fastening member 10 such as a bolt into the nut member 112, the inductor case 140 is the OBC housing 110. It can be fixed to.
이처럼 볼드와 같은 체결부재(10)를 통해 인덕터 케이스(140)를 OBC 하우징(110)에 고정시킴에 따라, 차량의 진동으로 인한 인덕터(130)의 파손을 방지할 수 있게 된다. 또한, 체결부재(10)의 조립시 인덕터 케이스(140)가 방열패드(120)를 가압함에 따라, 방열패드(120)와 OBC 하우징(110)의 접촉면적이 증가하게 되어 방열효율을 증대시킬 수 있게 된다. As such, as the inductor case 140 is fixed to the OBC housing 110 through the fastening member 10 such as a bold, it is possible to prevent the inductor 130 from being damaged by the vibration of the vehicle. In addition, as the inductor case 140 pressurizes the heat radiating pad 120 when the fastening member 10 is assembled, the contact area between the heat radiating pad 120 and the OBC housing 110 is increased to increase heat radiating efficiency. Will be.
한편, 인덕터 케이스(140)의 저면에는 적어도 하나의 가이드 부재(145)가 돌출 형성되고, OBC 하우징(110)의 내측 하단에는 가이드 부재(145)가 삽입되는 적어도 하나의 가이드 홈(미도시)이 형성될 수 있다. Meanwhile, at least one guide member 145 protrudes from a bottom surface of the inductor case 140, and at least one guide groove (not shown) into which the guide member 145 is inserted is formed at an inner lower end of the OBC housing 110. Can be formed.
이에 따라, 가이드 홈에 가이드 부재(145)를 삽입시키면, 미리 정해진 위치에 인덕터 케이스(140)를 배치시킬 수 있게 되어 OBC 하우징(110)과의 조립성을 향상시킬 수 있게 된다. Accordingly, when the guide member 145 is inserted into the guide groove, the inductor case 140 may be disposed at a predetermined position, thereby improving the assemblability with the OBC housing 110.
전술한 바와 같이, 전기자동차용 OBC 모듈 어셈블리(100)는 OBC 하우징(110) 내부에 인덕터(130)와 접촉되는 방열패드(120)를 구비함에 따라, 열 전도에 의한 방열효과를 얻을 수 있게 되어 방열효율을 증대시킬 수 있게 된다. As described above, the OBC module assembly 100 for an electric vehicle is provided with a heat dissipation pad 120 in contact with the inductor 130 inside the OBC housing 110, thereby obtaining a heat dissipation effect by heat conduction. It is possible to increase the heat radiation efficiency.
또한, 인덕터 케이스(140)의 상단에 인덕터(130)의 코일(132)이 인출되는 인출 홀(142)을 형성함에 따라, 인덕터(130)의 코일(132)을 미리 정해진 위치에 배치시킬 수 있게 되어 인덕터(130)의 상부에 배치되는 PCB 기판(111)과의 조립성을 향상시킬 수 있게 된다.In addition, as the drawing hole 142 through which the coil 132 of the inductor 130 is drawn out is formed on the top of the inductor case 140, the coil 132 of the inductor 130 may be disposed at a predetermined position. Thus, assembling with the PCB substrate 111 disposed on the inductor 130 may be improved.
또한, 인덕터 케이스(140) 내부에 몰딩재를 충전 및 경화여 몰딩부(150)를 형성함에 따라, 먼지나 수분이 인덕터 케이스(140)의 내부로 침투하는 것을 방지할 수 있게 되어 인덕터(130)의 수명을 증대시킬 수 있게 된다. In addition, as the molding part 150 is formed by filling and curing the molding material in the inductor case 140, the inductor 130 may prevent dust or moisture from penetrating into the inductor case 140. It is possible to increase the life of the.
또한, 몰딩부(150)가 인덕터(130) 및 인덕터 케이스(140)와 맞닿게 형성되므로, 열 전도에 의한 방열효과를 얻을 수 있게 되어 인덕터(130)에서 발생하는 열원을 보다 효율적으로 방출할 수 있게 된다.In addition, since the molding part 150 is formed to be in contact with the inductor 130 and the inductor case 140, it is possible to obtain a heat dissipation effect due to heat conduction, thereby more efficiently dissipating the heat source generated in the inductor 130. Will be.
또한, 인덕터 케이스(140)의 상단에 몰딩재의 주입시 OBC 하우징(110) 내의 공기를 외부로 배출하기 위한 공기 배출구(143)를 형성함에 따라, 몰딩재의 주입시 몰딩재에 기공이 생성되는 것을 방지하여 열 전도율을 증가시킬 수 있게 된다. In addition, by forming an air outlet 143 for discharging the air in the OBC housing 110 to the outside during the injection of the molding material on the top of the inductor case 140, to prevent the generation of pores in the molding material during injection of the molding material Thereby increasing the thermal conductivity.
또한, 체결부재(10)를 통해 인덕터 케이스(140)를 OBC 하우징(110)에 고정시킴에 따라, 차량의 진동으로 인한 인덕터(130)의 파손을 미연에 방지할 수 있게 된다. In addition, by fixing the inductor case 140 to the OBC housing 110 through the fastening member 10, it is possible to prevent damage to the inductor 130 due to the vibration of the vehicle.
아울러, 인덕터 케이스(140)의 저면에 가이드 부재(145)를 형성하고 OBC 하우징(110)에 가이드 부재(145)가 삽입되는 가이드 홈이 형성됨에 따라, 미리 정해진 위치에 인덕터 케이스(140)를 배치시킬 수 있게 되어 OBC 하우징(110)과의 조립성을 향상시킬 수 있게 된다. In addition, as the guide member 145 is formed on the bottom surface of the inductor case 140 and the guide groove in which the guide member 145 is inserted into the OBC housing 110 is formed, the inductor case 140 is disposed at a predetermined position. It becomes possible to improve the assembly with the OBC housing 110.
본 발명은 첨부된 도면에 도시된 일 실시예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 당해 기술분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 수 있을 것이다. 따라서, 본 발명의 진정한 보호 범위는 첨부된 청구 범위에 의해서만 정해져야 할 것이다.Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Could be. Accordingly, the true scope of protection of the invention should be defined only by the appended claims.

Claims (7)

  1. 전기자동차용 배터리의 충전을 위한 OBC(On Board Charger) 모듈 어셈블리에 있어서, In the OBC (On Board Charger) module assembly for charging an electric vehicle battery,
    PCB 기판이 내장된 OBC 하우징; An OBC housing with a built-in PCB board;
    상기 OBC 하우징의 내측 하단에 안착된 방열패드; A heat dissipation pad seated on an inner lower end of the OBC housing;
    상기 방열패드의 상부에 안착되며, 코어와 상기 코어의 주위에 권취된 코일로 이루어져 상기 PCB 기판과 전기적으로 연결되는 인덕터; An inductor seated on an upper portion of the heat dissipation pad, the inductor being electrically connected to the PCB substrate, the coil being wound around the core and the core;
    하방이 개구되어 상기 인덕터를 상부에서 감싸도록 형성되고, 상단에 상기 인덕터의 방열을 위한 몰딩재 주입구가 구비된 인덕터 케이스; 및 An inductor case having a downward opening to surround the inductor at an upper portion thereof, and a molding material injection hole for dissipating the inductor at an upper end thereof; And
    상기 몰딩재 주입구를 통해 몰딩재가 상기 인덕터 케이스 내로 주입 및 충전되어 경화된 몰딩부; A molding part in which a molding material is injected into and filled with the inductor case through the molding material injection hole and cured;
    를 포함하는 전기자동차용 OBC 모듈 어셈블리.OBC module assembly for an electric vehicle comprising a.
  2. 제1항에 있어서, The method of claim 1,
    상기 인덕터 케이스는 상단에 상기 인덕터의 코일이 인출되는 인출 홀을 포함하는 것을 특징으로 하는 전기자동차용 OBC 모듈 어셈블리. The inductor case is an OBC module assembly for an electric vehicle, characterized in that it comprises an extraction hole at which the coil of the inductor is drawn out.
  3. 제1항에 있어서, The method of claim 1,
    상기 인덕터 케이스는 상단에 몰딩재의 주입시 상기 OBC 하우징 내의 공기를 외부로 배출하기 위한 공기 배출구를 포함하는 것을 특징으로 하는 전기자동차용 OBC 모듈 어셈블리. The inductor case is an OBC module assembly for an electric vehicle, characterized in that it comprises an air outlet for discharging the air in the OBC housing to the outside when the injection molding material on the top.
  4. 제1항에 있어서, The method of claim 1,
    상기 인덕터 케이스는 상기 OBC 하우징에 체결부재를 통해 고정되는 것을 특징으로 하는 전기자동차용 OBC 모듈 어셈블리. The inductor case is OBC module assembly for an electric vehicle, characterized in that fixed to the OBC housing via a fastening member.
  5. 제1항에 있어서, The method of claim 1,
    상기 인덕터 케이스의 저면에는 적어도 하나의 가이드 부재가 돌출 형성되고, 상기 OBC 하우징의 내측 하단에는 상기 가이드 부재가 삽입되는 적어도 하나의 가이드 홈이 형성된 것을 특징으로 하는 전기자동차용 OBC 모듈 어셈블리. At least one guide member protrudes from a bottom surface of the inductor case, and at least one guide groove into which the guide member is inserted is formed at an inner lower end of the OBC housing.
  6. 제1항에 있어서, The method of claim 1,
    상기 몰딩부는 에폭시, 실리콘, 우레탄 중 선택된 하나로 형성된 것을 특징으로 하는 전기자동차용 OBC 모듈 어셈블리.The molding portion OBC module assembly for an electric vehicle, characterized in that formed with one selected from epoxy, silicon, urethane.
  7. 제1항에 있어서, The method of claim 1,
    상기 방열패드는 점착성을 가지며, 상기 OBC 하우징에 탈착 가능하게 형성된 것을 특징으로 하는 전기자동차용 OBC 모듈 어셈블리. The heat dissipation pad is adhesive, and OBC module assembly for an electric vehicle, characterized in that formed on the OBC housing detachable.
PCT/KR2016/010127 2016-03-29 2016-09-08 Obc module assembly for electric vehicle WO2017171158A1 (en)

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KR20160037381 2016-03-29

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