baber/WOPTO huggingface dataset:
Patent KR-20130011570-A (KR)
Title: Moving floor structure for seismic isolation
Inventor: JUNG DEUK YOUNG
IPC: E04F15/024
Filed: 2011-07-22
Abstract: PURPOSE: A movable floor structure for seismic isolation is provided to make the movable floor not vibrate or vibrate at a very small amplitude even if a building structure largely vibrates by an earthquake, thereby safely protect equipment on the movable floor. CONSTITUTION: Plural lower frames(1) are continuously fixed on the bottom of a building in a row. Plural upper frames(2) are placed on the upper side of the lower frames(1), and are respectively opposite to the lower frames(1). A ball seismic isolation bearing(3) is equipped between the lower frame(1) and the upper frame(2). A deck frame(4) is fixed on the upper sides of the upper frames(2). The deck frame(4) is continuously fixed through two upper frames(2). A deck plate(5) is continuously fixed on the upper side of the deck frame(4). [Reference numerals] (AA) Building floor
Patent KR-20130012489-A (KR)
Inventor: CHAE SOO HA
IPC: C08L83/04
Filed: 2011-07-25
Abstract: 본 발명은 선박용 보온단열재에 관한 것이다.
Patent KR-20130013068-A (KR)
Title: Depositing system and method through credit cards
Inventor: SEOK CHANG HO
IPC: G06Q40/02
Filed: 2011-07-27
Abstract: PURPOSE: A saving system with a credit card and a method thereof are provided to implement saving by transferring predetermined money to a pre-designated account by paying the predetermined money when the credit card is used. CONSTITUTION: A credit card(10) is used for purchasing products and services and includes a corresponding payment account. A card terminal(20) delivers payment information including information of the credit card. A credit card system(40) processes credit card tasks. An operating server(30) inputs the payment information to search for whether the card is a saving card or not. The operating server transfers saving money from the payment account to a saving account. [Reference numerals] (10) Credit card; (20) Card terminal; (30) Operation server; (40) Credit card system; (50) Internet; (60) User terminal
Patent KR-20130021794-A (KR)
Title: Storage battery with a stack of battery cells
Inventor: HWANG JAE IL
IPC: H01M10/6551
Filed: 2011-08-24
Abstract: PURPOSE: A storage battery with a stack of battery cells is provided to enable the easy assembling of an aluminum case which surrounds the battery cells and a heat sink. CONSTITUTION: A storage battery with a stack of battery cells has a plurality of battery cells(20) which is laminated and is surrounded by an aluminum case(10). A heat sink(30) is surface-contacted with the aluminum case. A coupling groove(31) is laminated in the battery cell direction in the part of the heat sink where the aluminum case is surface-contacted. A bent part(11), which is bent to a shape corresponding to the coupling groove and is surface-contacted with a coupling groove, is formed in the end part where the heat sink is surface-contacted.
Patent KR-20130021800-A (KR)
Title: 자세 측정 센서와 주위 환경 정보 수집장치를 이용하여 자원 개발 로봇을 원격으로 조정하는 자원 개발 시스템
Inventor: NOH JONG HO
IPC: E02F9/20
Filed: 2011-08-24
Abstract: 본 발명은 자원 개발 로봇의 주위 환경 정보와 자원 개발 로봇에 장착된 센서들의 측정 정보들을 취합하여 주변 사물과의 불필요한 충돌은 방지하면서도 원격으로 자원 개발을 성공적으로 수행하는 자원 개발 시스템에 관한 것으로,  
특히 주행장치와, 상기 주행장치에 장착되어 주행가능하고 주행장치를 기준으로 선회하는 선회장치 및 상기 선회장치와 주행장치에 장착되어 유압식으로 구동되는 적어도 하나 이상의 관절을 갖는 작업장치로 구성되는 자원 개발 로봇과; 상기 자원 개발 로봇의 주변 사물을 3차원으로 스캔하는 스캔장치와; 상기 자원 개발 로봇의 주변 사물을 촬영하는 촬영장치와; 상기 작업장치의 각 축에 장착되어 축의 회전각 또는 기울기를 측정하는 센서부; 및 상기 스캔장치의 스캔정보와, 촬영장치의 영상정보와 센서부의 측정값을 이용하여 상기 자원 개발 로봇을 원격조정하는 원격제어장치;를 포함하여 구성되는 것을 특징으로 하는 자세 측정 센서와 주위 환경 정보 수집장치를 이용하여 자원 개발 로봇을 원격으로 조정하는 자원 개발 시스템에 관한 것이다.
Patent KR-20130022516-A (KR)
Title: Electric furnace based on loop heat pipe
Inventor: JOUNG WUK CHUL
IPC: F28D15/02
Filed: 2011-08-24
Abstract: PURPOSE: An electric furnace based on a loop heat pipe is provided to uniformly distribute temperature by preventing the supplying shortage of working fluid through the formation of a vapor film and the contamination of the working fluid. CONSTITUTION: An electric furnace(100) based on a loop heat pipe comprises an evaporator, a compensation chamber(120), a fluid discharge part(113), a vapor flow homogenizer(130), a cooling jacket(140), and a fluid inlet part(121). The compensation chamber is positioned in the upper evaporator and accommodates working fluid(150) which is vaporized through the heat from wick(111) and is a mixture of liquid fluid(151) and gas phase fluid(152). The fluid discharge part discharges the gas phase fluid which is generated by the evaporator. The vapor flow homogenizer is provided with the gas phase fluid from the fluid discharge part. The cooling jacket cools the gas phase fluid which is discharged from the vapor flow homogenizer. The fluid inlet part flows the liquid fluid which is cooled in the cooling jacket into the compensation chamber. The vapor flow homogenizer internally comprises at least one accommodating chamber and heats a heated body which is kept in an accommodating chamber.
Patent KR-20130022208-A (KR)
Title: Antenna apparatus
Inventor: SEOL KYUNG MOON
IPC: H01Q1/24
Filed: 2011-08-25
Abstract: PURPOSE: An antenna device is provided to improve the performance of an antenna by using a dual metal frame composed of an inner metal frame and an outer metal frame. CONSTITUTION: A main antenna radiating body(220) is placed at a mainboard(210). The main antenna radiating body is electrically connected with a feeding end(203) of the mainboard. A dual metal frame is positioned along a circumference of the mainboard. The dual metal frame comprises an inner metal frame(230) and an outer metal frame(240). The inner metal frame is electrically connected with the feeding end of the mainboard or the main antenna radiating body.
Patent KR-20130023676-A (KR)
Title: Device for sensing leakage of pipe
Inventor: KIM YOUNG SIK
IPC: G01M3/18
Filed: 2011-08-29
Abstract: PURPOSE: A leakage sensing device for a pipe is provided to sense the expansion of a flexible unit caused by fluid leaked from a joint for the pipe by using a leakage sensing unit, thereby informing an operator. CONSTITUTION: A leakage sensing device(1) for a pipe(10) comprises a flexible unit(20), a fixing unit(30), a leakage sensing unit(40), and a sensor bracket(50). The flexible unit formed of a flexible material surrounds the exterior surface of a joint(12). The fixing unit fixes both sides of the flexible unit to an outer side of the pipe. The leakage sensing unit senses the expansion of the flexible unit caused by fluid leaked from the joint. The sensor bracket fixes the leakage sensing unit to the outer side of the pipe. The flexible unit is formed of a material including rubber.
Patent KR-20130024182-A (KR)
Title: Led driver apparatus
Inventor: KANG TAE KYOUNG
IPC: H05B44/00
Filed: 2011-08-30
Abstract: PURPOSE: An LED driving device is provided to detect whether an LED array is actually open to the LED driving device or not while not being affecting by abnormal forward voltage, thereby detecting accurate open state of the LED array. CONSTITUTION: An input unit(100) is inputted with dimming signals for driving LED arrays(500). A PWM signal generator(200) generates PWM signals according to a reference voltage. A DC-DC convertor(300) supplies driving voltages to multiple LED arrays using the generated PWM signals. An LED driving unit(400) provides constant currents using the dimming signal for driving the LED arrays. A detecting unit(600) detects whether the multiple LED arrays are open or not when the driving voltages are above the predetermined a first reference voltage. A reference voltage generator(700) generates the reference voltage. [Reference numerals] (100) Input unit; (200) PWM signal generator; (300) DC-DC converter; (400) LED driving unit; (500) LED arrays; (600) Detecting unit; (700) Reference voltage generator
Patent KR-20130024331-A (KR)
Title: 동시 용접이 가능한 자동용접장치
Inventor: KWEON OH JONG
IPC: B23K37/02
Filed: 2011-08-31
Abstract: 본 발명은 하나의 용접 캐리지를 통해 동시에 여러 대의 용접 토치를 구비하여 용접을 수행하므로 단시간내에 용접작업을 할 수 있도록 한 동시 용접이 가능한 자동 용접장치가 개시된다.  
본 발명은 한쪽면에 구비되어 자동주행이 가능한 용접 캐리지와; 상기 용접 캐리지의 수직 지지대로부터 횡방향으로 분리가능하게 결합되어 연장되는 수평 지지대에 복수,결합되는 제 1클램핑수단과; 상기 제 1클램핑 수단의 하부에 위치하여 연결되면서 주판에 용접되는 복수의 론지 양쪽면의 용접선을 따라 용접을 수행하도록 복수, 구비되는 용접토치와 각각 결합되는 제 2클램핑수단; 을 포함하여 동시에 용접을 할 수 있도록 구성되는 것이다.
Patent KR-20110103924-A (KR)
Inventor: JANG KYUNG DUK
IPC: H01L21/302
Filed: 2011-09-01
Abstract: 본 발명은 기판 세정 장치 및 이를 이용한 기판 세정 설비를 개시한 것으로서, 기판에 고온의 세정액을 공급하면서, 클리닝 패드의 회전력과 가압력을 이용하여 기판의 이물질을 제거하는 것을 특징으로 가진다. 
이러한 특징에 의하면, 기판상의 이물질을 보다 효율적으로 세정할 수 있는 기판 세정 장치 및 이를 이용한 기판 세정 설비를 제공할 수 있다.
Patent KR-20110118111-A (KR)
Title: 사람이나 동물의 콧속을 청결하게 소독하여주는 다기능 소독기
Inventor: HAN SANG KWAN
IPC: A61J1/05
Filed: 2011-09-03
Abstract: 사람이나 동물의 주요 호흡기관인 목구멍 속과 목 젓과 콧속을 소독하여 주기 위한 다기능 소독기에 관한 발명으로서 통상적으로 사용되고 있는 플라스틱 재질 또는 고무재질 또는 실리콘 소재를 이용하여 원형 또는 뭉툭한 형태의 액체 통(통상적으로 사용되고 있는 용기이기 때문에 미도시함)을 구비한다. 
 액체 통(통상적으로 사용되고 있는 용기이기 때문에 미도시함)은 연질의 플라스틱 소재 또는 고무재질 또는 실리콘 소재를 이용하여 원형 또는 뭉툭한 형태로 구 
성되며, 액체 통(통상적으로 사용되고 있는 용기이기 때문에 미도시함)의 상단에는 착탈이 용이하도록 구비되는 액체 통 캡(미도시)을 구성하여 줌과 함께 액체 통 캡 
(미도함)의 상단부에는 분사파이프(69)를 구성하여 준다. 
 액체 통 캡(미도시)과 연결되는 분사파이프(69)의 상단 둘레 측면에는 목 젓 또는 콧속에 서식하는 세균들과 이물질들을 용이하게 소독하여 줌과 함께 소독액이 목구멍 속 또는 콧속의 상단부로 솟구치지 못함과 동시에 가로 방향으로만 분사하도록 가로방향으로 소독액 분출구(36)를 구성한 것을 특징으로 하는 목 젓 또는 콧속에 서식하는 세균들과 이물질들을 용이하게 소독하여 주도록 가로방향으로만 분출되는 소독액 분출구(36)가 구비되는 다기능 소독기를 제공한다. 
 소독액 분출구 차단판 겸 글기판(33)의 상단부 형상은 다양하게 변경하여 구성할 수가 있으나 원형의 형태로 구성함이 바람직하다. 
 이러한 예를 도시하는 이유는 콧속을 소독하거나 목구멍 속의 목 젓을 소독액으로 소독할 때에 분출되는 소독액이 목구멍 속으로 유입되지 못함과 동시에 콧속의 상단부를 통하여 기도로 소독액이 유입되지 못하게 소독액 분출구(36)를 가로방향으로 구성한 소독액 분출구(36)의 모양을 구성한 것이 도1의 사시도 이다. 
 즉 소독액이 목구멍 속으로 유입되지 못하게 하거나 콧속으로 유입되지 못하도록 다양한 형태로 소독액 분출구(36)의 모양을 구성할 수가 있다는 것을 보여주기 위한 예시도 임으로 다른 모방업자가 만드는 다기능 소독기에구성되는 소독액 분출구(36)의 모양을 다르게 구성한 것 모두가 본 발명의 권리 범위에 속하는 것은 당연한 것임으로 권리범위 확인 심판 없이 그 즉시 처벌받아야 하는 것은 당연한 것이다.
Patent KR-20130027067-A (KR)
Title: Glass deposition apparatus for flat display
Inventor: KIM YOUNG MIN
IPC: H01L51/56
Filed: 2011-09-05
Abstract: PURPOSE: A thin film depositing device for a flat display is provided to improve stability and productivity by inserting a new shield into a chamber after the used shield is withdrawn to the outside of the chamber through an inlet and outlet unit for supporting the shield. CONSTITUTION: A chamber(110) provides a space for depositing a substrate for a flat display. A shield(120) prevents deposition materials from being deposited on an inner wall of the chamber. An inlet and outlet unit(130) for supporting the shield inputs and outputs the shield to and from the chamber to replace the shield, and includes a gate door(131), a shield support member(132) to support the shield, and a door moving unit(133) to move the gate door. The door moving unit includes a sliding rail(134) and a roller(135) to move along the sliding rail.
Patent KR-20120034559-A (KR)
Title: Imaging device and camera system
Inventor: NISHIHARA TOSHIYUKI
IPC: H01L27/14
Filed: 2011-09-14
Abstract: PURPOSE: An imaging device and a camera system thereof are provided to omit analog signal processing without decreasing the aperture ratio of pixels. CONSTITUTION: A pixel array unit(110) includes a photoelectric conversion element. A plurality of sense circuit units(120) receives an electric signal of a pixel. The sense circuit unit determines a photon incoming to the pixel for a fixed time for the second time. A determination result accumulated circuit unit(150) accumulates a plurality of determination results of the sense circuit for each pixel or each pixel group. The determination result accumulated circuit unit derives the photon incoming amount to a light receiving unit by photon counting.
Patent KR-20130030685-A (KR)
Title: Humidifier
Inventor: LEE SEUNG HYUN
IPC: F24F6/00
Filed: 2011-09-19
Abstract: PURPOSE: A humidifier is provided to improve the stability against the danger of bacteria by fundamentally removing moisture which provides an environment for bacterial proliferation inside the humidifier. CONSTITUTION: A humidifier comprises a humidifying unit(20), a water supplying unit(30), an electric supply and control unit(40), an excessive water forcibly draining unit(50), and a drying unit(60). The excessive water forcibly draining unit forcibly collects water on a humidification route inside a humidifier into a water collecting container which is separately installed in the lower side of a casing. The drying unit ventilates in order to dry a humidification water contacting route including an internal route which comprises the humidifying unit, water supplying unit, and water collecting container(53). The electric supply and control unit controls to operate the excessive water forcibly draining unit after the end of humidifying; to discharge internal water of the humidifier to the water collecting container; and to dry the inside of the humidifier by the drying unit.
Patent KR-20130035131-A (KR)
Title: A rack device and a dishwasher including the same
Inventor: PARK NUNG SEO
IPC: A47L15/50
Filed: 2011-09-29
Abstract: PURPOSE: A rack device and a dishwasher including the same are provided to easily utilize space inside the dishwasher because the rack is rotatably installed to the rack device. CONSTITUTION: A rack device comprises a first rack(50) and a dish rack(100). The dish rack comprises a frame connection unit, a guide unit, and a guide hole. The guide unit is provided to one side of the frame connection unit and fixes the dish rack to a first position. The guide hole is formed between the frame connection unit and the guide unit and guides to the upper or lower direction of the dish rack.
Patent KR-20130044957-A (KR)
Title: Integrated circuit systam and operartion method of memory system
Inventor: OH SEUNG MIN
IPC: G11C7/10
Filed: 2011-10-25
Abstract: PURPOSE: An integrated circuit system and a method for operating a memory system are provided to improve performance by increasing a read data transmission speed. CONSTITUTION: An integrated circuit system includes a master chip(210), slave chips(221-228), and data channels. The slave chip is controlled by the master chip. The data channel transmits data between the master chip and the slave chip. A data transmission speed from the master chip to the slave chip is slower than the data transmission speed from the slave chip to the master chip. [Reference numerals] (210) First chip; (221,222,223,224,225,226,227,228) Second chip
Patent KR-20130048002-A (KR)
Title: Robot arm including force sensing apparatus
Inventor: CHOI HYUN DO
IPC: B25J19/02
Filed: 2011-11-01
Abstract: PURPOSE: A robot arm with a device for measuring force is provided to accurately measure the force in all directions including the axial direction of the robot arm. CONSTITUTION: A robot arm comprises a body(11), a tool, a cable, and a force measuring unit. The body is formed in a pipe shape and is extended along the axial direction. The tool is connected to a driving unit of the body. The cable is connected to the end of the tool and controls the operation of the tool. The force measuring unit is adhered to the surface of the body and measures the force acting on the body. The cable moves along the direction perpendicular to a shaft of the body on the end of the tool.
Patent KR-20130048037-A (KR)
Title: Air venting apparatus for an automobile
Inventor: YOU YOUNG JIN
IPC: B60H1/34
Filed: 2011-11-01
Abstract: PURPOSE: An air vent device of a vehicle is provided to control the direction of air discharged from a cover to a vehicle indoor space as an air direction controlling member is slid when operating a knob. CONSTITUTION: An air vent device of a vehicle comprises a duct(10), a cover(20), and an air direction controlling member. Ventilated air flows into the duct. The cover discharges the air flowing in the duct, and includes a slot(25). The air direction controlling member is arranged between the duct and the cover. A knob(35) protruded toward the slot is formed in the air direction controlling member for converting the direction of the air discharged from the cover, thereby being slid when operating the knob.
Patent KR-20130048852-A (KR)
Title: Sea floating wind turbine apparatus for generating electricity
Inventor: LEE CHOONG HO
IPC: F03D9/00
Filed: 2011-11-03
Abstract: PURPOSE: A floating type sea aerogenerator is provided to improve posture stability of a device and to form the center of a weight beneath sea surface by locating a power generation unit except for a blade to beneath sea surface. CONSTITUTION: A floating type sea aerogenerator comprises a rotation unit(100), a power transmission unit(200), and a floating unit(400). The rotation unit is arranged in a position vertically separated from the upper part of sea surface and comprises a blade(102) rotated by wind. The power transmission unit receives rotation power generated in the rotation unit. A power generation unit is mounted on the floating unit, and the floating unit is located on the sea surface in a floating state by being separated to the lower part of the rotation unit.
Patent KR-20130052334-A (KR)
Title: Apparatus for recognizing signs, method thereof, and method for recognizing image
Inventor: HWANG SUN YOUNG
IPC: H04N19/60
Filed: 2011-11-11
Abstract: PURPOSE: A sign recognizing device, a sign recognizing method thereof, and an image recognizing method thereof are provided to operate the DCT(Discrete Cosine Transform) conversion for sign recognitions by blocking an image. CONSTITUTION: A sign recognizing device extracts an ROI(Region Of Interest) including a sign information from an image(210). The device divides the ROI into image blocks to perform the DCT conversion of the image blocks according to the DCT coefficient coordinates(220,230). The device extracts a DCT coefficient as a feature value of a sign(240). The device recognizes the sign by classifying the sign(250). [Reference numerals] (210) Extract a region of interest including the information of a sign from an image; (220) Select a DCT coefficient coordinate to perform DCT conversion; (230) DCT convert by dividing the region of interest into image blocks of predetermined sizes according to the selected DCT coefficient coordinate; (240) Extract DCT coefficient calculated by the DCT conversion as the feature value of the sign; (250) Recognize the sign by calculating distances between each feature value of a plurality of classes and the extracted feature value and classifying which class of the plurality of classes the sign is belonged to; (AA) Start; (BB) End
Patent KR-20130058377-A (KR)
Title: Connector having bending furrow and toy for assembly studying using thereof
Inventor: CHOI SANG KWON
IPC: G09B1/34
Filed: 2011-11-25
Abstract: PURPOSE: A connector having a bending groove and a cubic building block for study using thereof are provided to perform the accurate-angled coupling of each connecting pipe and each connecting piece of a cubic building block by making the connecting piece capable of being bent at a specific portion and to perform dynamic movement of the cubic building block. CONSTITUTION: A connector having a bending groove(10) comprises a body(12) which includes a penetration-hole at the center; a plurality of connecting pieces(14) which is radially extended from the body for being coupled to connection pipes; a connection bending groove(15) which is formed on the boundaries of the connecting pieces and the body such that the connecting pieces are bent at specific portions; and a body bending groove(16) which is formed for bending the body entirely at the specific portion.
Patent KR-20130061902-A (KR)
Title: Strain gauge type force-torque sensor and method for manufacturing the same
Inventor: KWON SOON MYUNG
IPC: G01L1/22
Filed: 2011-12-02
Abstract: PURPOSE: A power-torque sensor of a strain gauge type and a manufacturing method thereof are provided to measure extension and compression with a unitized configuration. CONSTITUTION: A power-torque sensor of a strain gauge type(100) comprises a first sensor structure(110), a second sensor structure(120), and a gauge film(130). A convex portion is formed in the welded surface of the first sensor structure. A concave portion is formed in the welded surface of the second sensor structure. The welded surface of the second sensor structure with the concave portion is joined to the welded surface of the first sensor structure with the convex portion are welded while interposing the gauge film. The gauge film is formed into a structure that a strain gauge is installed on a flexible film and press-interposed by the concave and convex portions in between the welded surfaces of the first and second sensor structures.
Patent KR-20130062767-A (KR)
Title: Air conditioner and method for controlling the same
Inventor: PARK IL WOONG
IPC: F24F11/02
Filed: 2011-12-05
Abstract: PURPOSE: An air conditioner and a control method thereof are provided to perform backup operation between cycles or units, thereby coping with a load of the malfunctioned cycle. CONSTITUTION: An air conditioner comprises cycle controllers(100) and a main controller(50). The cycle controllers control cycles formed by the operation of a cooler and an air conditioning unit. The main controller, which is connected to a plurality of the cycle controllers, monitors and controls a plurality of the cycles. The main controller requests backup operation to at least one cycle controller of the cycle normally operated among the plurality of the cycle controller, thereby setting the backup operation between the cycles. [Reference numerals] (111) First cycle controller; (112) Second cycle controller; (113) Third cycle controller; (40) Central controller; (50) Main controller
Patent KR-20130064362-A (KR)
Title: Brake
Inventor: JEONG WON HEE
IPC: B60Q1/52
Filed: 2011-12-08
Abstract: PURPOSE: An automatic switch device for an emergency light for a rapid brake car is provided to prevent a rear-end collision by alarming a sign to an operator of a following vehicle by an emergency light in case of slamming a rapid brake. CONSTITUTION: A tilt sensor is operated by an inertia generated from a rapid brake of a vehicle. The tilt sensor comprises a bead(11), a first contact terminal(12), and a second contact terminal(13). The tilt sensor generates a control signal and delivers to a CPU. The CPU drives a relay by being delivered the control signal. The relay is connected in parallel with an emergency light switch. [Reference numerals] (AA) Before motion; (BB) After motion
Patent KR-20130066399-A (KR)
Title: Memory controller and memory control method
Inventor: PARK JAE EUN
IPC: G06F12/00
Filed: 2011-12-12
Abstract: PURPOSE: A memory controller and a memory control method thereof are provided to reduce stall generation and to satisfy a high frequency by using simple stall generation logic. CONSTITUTION: A global time control unit(201) manages global time set according to the generation of a stall. A receiving unit(202) receives a memory access request and uses the global time to set a time tag for the memory access request. A memory access unit(204) accesses a memory according to the memory access request to store or load data. When the data is loaded, an output unit(205) returns the loaded data according to a comparison result between the time tag and the global time. A memory access preparing unit(203) includes a sharing queue storing the memory access request. [Reference numerals] (201) Global time control unit; (202) Receiving unit; (203) Memory access preparing unit; (204) Memory access unit; (205) Output unit
Patent KR-20130068267-A (KR)
Inventor: KIM HEUNG JU
IPC: B23K20/12
Filed: 2011-12-15
Abstract: 모터케이스의 용접 방법이 개시된다. 본 방법은, 상호 맞춤에 의해 내부에 수냉용 관로를 형성하는 내부 케이스 및 외부 케이스를 조립하여 모터케이스를 형성하는 단계와, 접촉면의 중심부로부터 가장자리까지 연장된 나선형 요홈이 형성된 숄더를 이용하여 마찰교반접합에 의해 상기 모터케이스의 양 단부를 용접하는 단계를 포함할 수 있다. 그에 의해 상호 조립에 의해 내부에 수냉용 관로를 형성하는 내부 케이스 및 외부 케이스의 양 단부를 용접하되 냉각수의 누수를 효과적으로 방지할 수 있다.