baber/WOPTO huggingface dataset:
Patent KR-20030054057-A (KR)
Title: Board for burn-in test apparatus and fabrication method thereof, method for testing semiconductor chip by using it
Inventor: PARK GYE CHAN
IPC: H01L21/66
Filed: 2001-12-24
Abstract: PURPOSE: A burn-in test apparatus, a manufacturing method thereof, and a semiconductor chip burn-in testing method using the same are provided to be capable of effectively preventing the waste of packaging process time and material by carrying out a burn-in test at the level of wafer state. CONSTITUTION: A plurality of electrodes(204) having a predetermined thickness are formed at one side of a substrate(202). At this time, the electrodes(204) are isolated from each other. A plurality of via holes(206) are formed through each electrode(204) and the substrate(202). A plurality of electrode lines(208) are formed at the other side of the substrate(202), wherein the electrode lines(208) are connected with each electrode(204). A plurality of metal pins(210) are fixedly inserted in each via hole(206).
Patent KR-20030054193-A (KR)
Title: Error compensation apparatus and method for aqm
Inventor: KIM WANG RAE
IPC: H03F1/32
Filed: 2001-12-24
Abstract: PURPOSE: An apparatus and a method for compensating an error of AQM are provided to remove an operation error due to the error of AQM by extracting feedback digital data according to a digital method. CONSTITUTION: An apparatus for correcting an error of AQM includes an error compensation portion(100), the first and the second digital/analog converters(2,3), a modulation portion(10), an amplifier(HPA), a down-converter(300), an analog/digital converter(203), and a control portion(204). The error compensation portion receives and compensates I/Q digital signals from a predistorter(1). The first and the second digital/analog converters are used for converting the I/Q digital signals to I/Q analog signals. The modulation portion modulates the I/Q analog signals to carrier frequencies. The amplifier is used for amplifying the output of the modulation portion. The down converter is used for converting an output signal of the amplifier. The analog/digital converter is used for converting an output signal of the down converter to a digital signal. The control portion extracts an error correction value by using a reference I/Q digital signal and applies an error correction signal to the error compensation portion.
Patent KR-20030054575-A (KR)
Title: derailment protective elastic axel of electric train
Inventor: CHOI SEONG GYU
IPC: B61F9/00
Filed: 2001-12-26
Abstract: PURPOSE: A flexible axle for preventing derailment of a railway vehicle is provided to prevent the train from being derailed during high-speed traveling by reducing lateral force to the wheel in passing the curved line with installing an elastic support axle between separable axles. CONSTITUTION: An elastic axle comprises a rectangular installation frame(11) placed in the lower part of a bogie frame and composed of plural axle installation holes formed symmetrically at both sides; separable axles(2,2') separated in the center of the axle and mounted in the installation frame with forming a fixing unit(22) at the side of the wheel; and a support axle(3) having a set of symmetrical containing holes(31) for storing the separation portion of the axle, and an elastic body(4) installed in the containing hole. The derailment of the railway vehicle is prevented by decreasing lateral pressure in traveling on the curved line.
Patent KR-20030058670-A (KR)
Title: Apparatus plasma deposition
Inventor: KIL DEOK SIN
IPC: H01L21/205
Filed: 2001-12-31
Abstract: PURPOSE: A plasma depositing apparatus is provided to be capable of easily and stably carrying out a depositing process regardless of the change of pressure by using a plasma guiding pipe made of metal and forming an insulating layer in the plasma guiding pipe. CONSTITUTION: A plasma depositing apparatus includes a plasma guiding pipe(31) for connecting between a reaction chamber and a plasma exciting chamber. The plasma guiding pipe made of metal has an insulating layer(33) at the inner wall of the plasma guiding pipe. Preferably, the plasma guiding pipe is made of aluminum. Preferably, the insulating layer has the thickness of 100-10000 angstrom. Preferably, the insulating layer is formed by transforming the surface of the plasma guiding pipe into Al2O3 by using an oxidizing process.
Patent KR-20030058784-A (KR)
Inventor: KIM SEO YEONG
IPC: F24F5/00
Filed: 2001-12-31
Abstract: PURPOSE: An apparatus for exchanging heat is provided to promote solidification or fusion of refrigerating material. CONSTITUTION: An apparatus includes a heat accumulating part(10) having refrigerating material built therein; and a heat transfer part(20), a space formed to allow heat exchange between the heat accumulating part and heat transfer medium contacting with the heat accumulating part and flowing. The heat accumulating part is charged with porous metal material(1) holding the refrigerating material. If the heat transfer part is formed tubular, the heat accumulating part is formed to cover the tube. If the heat transfer part is formed by a space formed on insides of plates facing each other, the heat accumulating part is formed on outsides of the plates. The porous metal material has empty spaces connected with each other therein to allow the refrigerating material to fill the empty spaces. Heat transfer between a heat transfer surface and a phase boundary surface is executed through the porous metal material with high heat conductivity rather than the refrigerating material with low heat conductivity as heat conductivity of the porous metal material is higher than the refrigerating material so as to improve speed of solidification and thawing.
Patent KR-20010074686-A (KR)
Title: 연료전지용 쌍극 컬렉터
IPC: C25D7/00
Filed: 1998-10-08
Abstract: 본 발명은 고체 고분자 전해질 연료전지용 쌍극 컬렉터에 관한 것으로서, 그것의 전기 전도성은 균일하게 분포된 금속 실린더(C)에 의해 제공되고, 그것의 팁은 전극을 관통해 있다.  두 실린더들 사이의 최소 거리는 2 내지 4㎜이고, 두 표면들 사이의 밀집성은 실린더가 내부에 삽입되어 있는 고분자 플레이트(A)에 의해 제공된다.  상기 디자인은 유체 이송용 관이 합체되어 있는 플레이트나, 또는 유체 분배자로서의 역할을 하는 미세다공성 구조체가 어느 한 측면에 배열되어 있는 플레이트에 적용될 수 있다.  이러한 유형의 컬렉터는 1A/㎠ 정도의 전류밀도 수준에서도 옴 저하가 매우 적고, 낮은 표면 무게, 및 사용이 용이하다는데 특징이 있다.
Patent KR-20010075632-A (KR)
IPC: C08F32/04
Filed: 1999-10-13
Abstract: 특정 알킬할로알루민옥산 및 다른 알킬할로알루미늄 화합물은 전이 금속과 중성의 두자리 리간드와의 착물을 사용하는 올레핀의 중합 반응에서 조촉매로서 사용할 때, 다른 종류의 알루미늄 화합물보다 알킬할로알루민옥산을 더 적은 양으로 사용하여도 우수한 수율의 폴리올레핀을 얻을 수 있다.
Patent KR-20010102005-A (KR)
Title: Preparation of Iodixanol
IPC: C07C231/00
Filed: 2000-02-10
Abstract: A process for the preparation of iodixanol by dimerisation of 5-acetamido-N,N′-bis (2,3-dihydroxypropyl)-2,4,6-triiodo-isophthalamide (“Compound A”) in which, after the dimerisation step, unreacted Compound A is precipitated from the reaction mixture and recovered for re-use. The process substantially increases the net yield of iodixanol and simplifies its purification.
Patent KR-20010102463-A (KR)
IPC: A61P25/24
Filed: 2000-04-06
Abstract: 본 발명은 신경퇴행성 질환을 치료하는데 사용되는 의약의 제조를 위한 티아넵틴 또는 이것의 에난티오머의 용도에 관한 것이다.
Patent KR-20010113778-A (KR)
Title: Cam device for removing and tilting the front plate a vertical mold casting machine
IPC: B28B13/06
Filed: 2001-02-08
Abstract: The object of the device is to provide a novel cam device applicable to sand moulding machines in which the cam (1) has its active surface (2) facing downwards to prevent sand or dirt from being deposited between said cam (1) and the its supporting follower (10), which the machine is provided with to cause the swivelling of the said cam. For this purpose the cam (1) is hinged at a point (3) to a frame (4) which may move longitudinally, while on another point (5) it is hinged to a connecting rod (6) which is in turn hinged on its opposite end at the point (8) to the front swinging plate (7) of the sand mote moulding machine, with said front plate (7) hinged at the point (9) on its rearmost edge to the frame (4).
Patent KR-20020040660-A (KR)
Title: 단일체의 측면 패널을 갖는 흡수용품의 제조 방법
IPC: A61F13/15
Filed: 2000-04-11
Abstract: 본 발명은 단일체의 탄성 측면 패널을 갖는 팬티형 일회용 흡수성 가먼트 (2)의 제조 방법 및 제조 장치에 관한 것이며, 이로 인해 제조된 가먼트 (2)가 제공된다.  단일체의 측면 패널 (6, 8)은 여러 조각의 측면 패널에 관련된 부가 비용을 배제하고, 측면 이음매를 제거함으로써 가먼트 (2)의 심미적 외양을 개선한다.  본 발명의 방법 및 장치는 마무리되지 않은 측연부를 갖는 가먼트 새시를 제공하는 단계, 새시를 접어 전면부와 후면부를 겹치게 하는 단계 및 단일체의 측면 패널을 접고 접합시켜 마주하는 측면 패널이 가먼트 새시의 측연부에서 결합되도록 하는 단계를 수행한다.
Patent KR-20010112944-A (KR)
Title: 폴리뉴클레오티드 서열의 기능을 억제하기 위한 방법 및조성물
IPC: A61K48/00
Filed: 2000-04-19
Abstract: 포유류 세포에서 표적 폴리뉴클레오티드 서열의 기능을 억제시키기 위한 치료학적 조성물에는 길이가 약 200개 이상의 뉴클레오티드이고 표적 폴리뉴클레오티드 서열과 실질적으로 상동성인 폴리뉴클레오티드 서열을 포함하는 적어도 부분적으로 이본쇄인 RNA 분자를 포유류 세포에 제공하는 제제가 포함된다.  이러한 RNA 분자는 바람직하게는 기능성 단백질을 생성시키지 않는다.  당해 조성물에 유용한 제제는 시험관내에서 효소적 합성법 또는 화학적 합성법으로 제조되거나 미생물의 재조합 배양물에서 제조되어 이로부터 분리되는 RNA 분자이거나, 또는 포유류 세포로의 전달 후에 생체내에서 목적하는 RNA 분자를 생성시킬 수 있다.  바이러스성 감염, 기타 병원성 감염 또는 특정 암의 치료 또는 예방 방법에서는, 이들 조성물을, 병원체 기원이거나 또는 종양이나 기타 암에 반응하여 생성될 수 있는 표적 폴리뉴클레오티드 서열의 기능을 저하시키거나 억제시키는데 유효한 양으로 투여한다.
Patent KR-20020011387-A (KR)
Title: 유체 농도의 측정 방법 및 측정 장치
IPC: F02D19/02
Filed: 2000-04-17
Abstract: 본 발명은 액화 천연 가스(LNG)의 하나 이상의 성분 비율을 결정하기 위한 장치 및 방법에 관한 것으로, LNG의 메탄 또는 에탄/메탄 비율의 퍼센티지는 두 온도에서 LNG의 열전도성을 측정하는 것에 의해 결정된다.
Patent KR-20020015317-A (KR)
Title: 자외선 광을 사용하여 크립토스포리듐 파르붐 및기아르디아 포자를 불활성화시키는 방법
IPC: A61L2/10
Filed: 2000-04-27
Abstract: 본 발명은 약 1mJ/cm 2 내지 약 175mJ/cm 2 조사량의 자외선 광으로 물을 조사시킴을 포함하는 크립토스포리듐 접합자, 기아르디아 포자 및 이와 유사한 유기체를 불활성화시키는 방법에 관한 것이다.
Patent KR-20020008210-A (KR)
IPC: H01L35/24
Filed: 2000-06-02
Abstract: 본 발명은 제벡 계수가 높고 출력 인자가 클 뿐만 아니라, 내충격성, 내열변형성 및 성형 가공성에도 우수한 열전 재료 및 열전 소자를 제공한다. 
     본 발명의 열전 재료 및 열전 소자는, 반금속, 금속 또는 합성수지로 이루어진 층상체와, 반금속으로 이루어진 층상체를 구비한 적층체로 구성되고, 이들 층상체 두께의 평균치가 0.3㎚ 이상 1000㎚ 이하인 것이다.  적층체를 이루는 층상체의 조합으로서는 Bi-Al, Bi-폴리아미드계 수지, Ag-Fe를 예시할 수 있다.  이들 적층체는, 적층체를 구성하는 모든 종류의 층상체로 이루어진 초기 적층체를 형성한 후에, 이 초기 적층체를 복수매 중첩하여 압연 또는 1축 프레스를 실시함으로써 제조된다.
Patent KR-20020025902-A (KR)
IPC: H01L33/60
Filed: 2001-04-23
Abstract: 측면발광반도체 발광장치(10)는 기판(12)을 포함하고, 기판(12)에는 불투광성 및 반사성을 갖는 수지로 형성된 케이스(14)가 설치된다. 기판(12)의 표면에는 전극(18A) 및 (18B)가 형성되며, 이 전극(18A) 및 (18B)에 LED 칩이 본딩된다. 기판(12)과 케이스(14) 사이에는 투광성수지(16)가 충전되며, 이에 의해 LED 칩(20)이 몰드된다. 측면발광반도체 발광장치(10)의 발광면은, 투광성 수지(16)로 형성된 면(16a), 면(16b) 및 면(16b)와 대향하는 면으로 형성된다. 또, 이 발광면은 조면으로 형성된다. 이 때문에, LED 칩으로부터 출력되는 광 및 케이스(14)에서 반사된 광은 발광면에서 산란된다.
Patent KR-20020021144-A (KR)
IPC: G06K19/07
Filed: 1999-06-29
Abstract: 정상이 아닌 결합 상태의 발생을 억제하여, IC의 이상 동작을 방지하는 것이 가능한 IC 카드가 제공된다.  상기 IC 카드는 접촉 및 비접촉의 각각의 결합을 검출하는 수단과, 한쪽의 결합에 의한 통신이 진행되는 중에 다른쪽의 결합을 일으키게 하는 전력 및 신호의 공급이 있는 경우에 어떤 결합에 의해서도 통신이 행해지지 않도록 통신을 차단하는 수단을 갖는다.
Patent KR-20020019934-A (KR)
Title: Method for generating reliability information for the decoding channel of a radio receiver and corresponding radio receiver
IPC: H03M13/45
Filed: 2000-07-27
Abstract: An equalizer of a radio receiver for generating reliability information (q) that specifies probabilities of a received data symbol (z) being based on a particular transmitted value. The reliability information (q) is determined for each received data symbol (z) by evaluating trellis state transitions through use of a particular metric, both trellis-based symbols and decision-feedback symbols being evaluated. The decision-feedback symbols used are state-independent symbols that have previously been decided by means of a hard decision.
Patent KR-20030060564-A (KR)
Inventor: JEONG DOO SOON
IPC: C12J1/00
Filed: 2002-01-07
Abstract: PURPOSE: A process for preparing Chinese pepper vinegar is provided, thereby preparing the Chinese pepper vinegar having various pharmacological efficacies. CONSTITUTION: A process for preparing Chinese pepper vinegar comprises the steps of: dipping malted rice and powdered malt in water, filtering the solution and removing precipitates to obtain a clean malted rice and malt solution; mixing the nonglutinous rice, Chinese pepper powder, jujube powder, Lycium Chinense powder and cinnamon powder, steaming the mixture thereof to prepare hard boiled rice and cooling the hard boiled rice; inserting the hard boiled rice into a fermentation vessel, adding malted rice and malt into the hard boiled rice, and fermenting the mixture thereof at 25 to 30 deg. C for 3 to 5 weeks; and filtering the fermented mixture to remove residue, inserting the filtered solution into a fermentation vessel, and fermenting the solution at 15 to 20 deg. C for 3 to 12 months.
Patent KR-20030061628-A (KR)
Title: System and Method for Wireless Internet Service and Browser for the Same
Inventor: KIM DEOK HWAN
IPC: H04W8/24
Filed: 2002-01-15
Abstract: PURPOSE: A system and a method for wireless Internet service and browser therefor are provided to offer various services to a mobile terminal irrespectively of performance of the mobile terminal by allowing a server to independently process various application programs. CONSTITUTION: A user connects to a wireless Internet service system(S101). A wireless Internet server requests a user authentication from a user managing unit(S102). The user managing unit judges whether the user is legitimate(S103). If the user is legitimate, an application program client executes an application program(S104). The application program client connects to an application program server(S105). Generated data are transmitted to a protocol converter(S106). The protocol converter converts, compresses and packetizes the received data(S107) and transmits it to a data transmitting receiving unit. The data transmitting and receiving unit transmits the packetized data to a mobile terminal(S108). When a key event is generated from the mobile terminal, it is transmitted to the data transmitting and receiving unit(S109) and then to the protocol converter. The protocol converter interprets the received data(S110) and transfers a key event to the application program server for a suitable processing(S111). If the application program is completely processed or a connection is cut off(S112), corresponding information is transmitted to the user managing unit(S113). The connection is terminated(S114).
Patent KR-20020023322-A (KR)
Title: Electric charged cyclone bagfilter dust collector
Inventor: HONG SUN SEONG
IPC: B01D45/12
Filed: 2002-01-16
Abstract: PURPOSE: An integral electrostatic precipitator cyclone bag filter dust collector is provided which is compact and enables high efficient dust collection by collecting only merits of conventional dust collectors including electric charger, electrostatic precipitator, cyclone and bag filter house. CONSTITUTION: In a system for treating dust discharged, the integral air pollution prevention system is characterized in that an electric discharging part electrical charging dust flown into the system from a discharging source(1), a cyclone part which is rotated so that electric charged dust has centrifugal force and a bag filter house collecting fine dust through a bag filter(4) are integrated, wherein a dust electric charger is integrally mounted on the inlet part of the integrated cyclone bag filter that is constructed by integrating the cyclone and the bag filter(4) in an integral electrostatic precipitator cyclone bag filter(10) so that electric charged dust passing through the electric charger is collected at the cyclone part(11) and the bag filter part(12).
Patent KR-20030062650-A (KR)
Title: Method for electric connecting of the coil and coil winding in electron valve
Inventor: PARK KWANG HEE
IPC: F16K31/06
Filed: 2002-01-18
Abstract: PURPOSE: A coil of an electronic valve is wound as a primary coil and a secondary coil to prevent energy loss and safety accident by an overheating. CONSTITUTION: In opening and closing of an electronic valve(2) using a magnetic energy by an applied voltage, a coil(9) of the electronic valve is wound in a primary coil and a secondary coil. When opening the electronic valve, the primary coil and the secondary coil are connected in parallel and a rating voltage is applied. When maintaining the open state of the valve, the primary coil and the secondary coil are connected in series and a low voltage is applied. A controller controls the connecting state of the primary coil and the secondary coil.
Patent KR-20030064015-A (KR)
Title: A fabricating method of active water using a far infrared light emitting bulb
Inventor: KIM JONG WOOK
IPC: C02F1/68
Filed: 2002-01-25
Abstract: PURPOSE: Provided are methods for fabricating active water with small cluster, alcoholic liquors, and fermented and aged beverage using far infrared light emitting bulb by accelerating movement of water molecular by lengthening energy relaxation time. CONSTITUTION: The method comprises the step of stirring water while emitting far infrared to the water at room temperature for 20-30 minutes using a far infrared emitting bulb having jade powder therein before the water is poured into a bottle. The method for fabricating fermented soybeans comprises the steps of filling boiled beans into a fermenting vessel, mixing the boiled beans while emitting far infrared to the beans at temperature of 43-45°C and humidity of 75-80% for 70-72 hours to ferment the beans using a far infrared emitting bulb having jade powder, and aging the fermented beans while emitting the far infrared to the beans.
Patent KR-20020027394-A (KR)
Inventor: JUNG YEON GUK
IPC: D06B23/10
Filed: 2002-01-25
Abstract: PURPOSE: A pot rotating device in which a rotating body constructed is constructed at the inside of a dyeing machine to be rotated horizontally and a pot is constructed on the side face of the rotating body to cause a dye and fabric contained in the pot to be absolutely blended is provided. The device can maximize an angle of shaking blend, thereby absolutely dyeing the dye and fabric. CONSTITUTION: A rotational axis(2) formed at the inside of an infrared light dyeing machine(1) is horizontally set with a fixture(3) constructed by a bearing on both sides of the rotational axis, a pulley is constructed on one side of the rotational axis to be rotated with a motor(4) through a belt. A pot fixture for fixing several pots is constructed on both sides of the rotational axis, each pot fixture is made in an L shape, a central part of the pot fixture is fixed to the rational axis and a fastener for fixing each pot is constructed at the front and rear part of both sides to cause the pot to be rotated out of a center position.
Patent KR-20030064951-A (KR)
Title: Mixed fog resistant composition for ldpe(low density polyethylene) film employed in agriculture
Inventor: JANG HYUN WOO
IPC: C08L67/02
Filed: 2002-01-29
Abstract: PURPOSE: Provided is a composite antifogging agent for agricultural LDPE(low density polyethylene) film which shows a compatibility, an initial antifogging property, long-term antifogging property, low temperature and high temperature stability, and the prevention of whitening. CONSTITUTION: The composition is produced by mixing a reaction product(A) obtained by esterifying a high fatty acid of C10-C22 and a polyol in a molecular weight ratio of 2.0:1.0-1.0:1.0; and a reaction product(B) obtained by addition reacting the product(A) and ethylene oxide in a molecular weight ratio of 1:1-1:10, in a weight ratio of 95:5-50:50. The product(A) is a product obtained by esterifying glycerin and lauric acid.
Patent KR-20030065615-A (KR)
Title: Filter supporting structure of an upright-type vacuum cleaner
Inventor: JUN HYEONG IL
IPC: A47L9/12
Filed: 2002-01-30
Abstract: PURPOSE: A structure for supporting a filter for an upright type vacuum cleaner is provided to reduce the number of parts, and to smoothly flow air in the cleaner by using a support protrusion and ribs, and simply supporting the filter. CONSTITUTION: A body has a partition(30) dividing a dust collecting room(10) and a motor driving room(20). A dust bag(12) and a motor are installed at the dust collecting room and the motor driving room, respectively. A grill unit(31) is formed at the partition, and introduces air in the dust collecting room into the motor driving room. A filter(70) is installed at the grill unit, and filters the sucked air. A support protrusion(80) is formed at both walls of the dust collecting room, and supports both sides of the filter. A plurality of ribs(90) are formed in the circumference of the grill unit, and supports the top and bottom of the filter.
Patent KR-20030012797-A (KR)
Title: Polycrystalline structure film and method of making same
Inventor: MUKAI RYOICHI
IPC: H01F41/18
Filed: 2002-01-30
Abstract: PURPOSE: To provide a polycrystalline structure film that can contribute to the micro size of magnetic particles formed in a crystalline layer and to provide a manufacturing method therefor. CONSTITUTION: Co atoms 31, Pt atoms 32 and SiO2 molecules 33 are poured onto the surface of a substrate 21 mounted on a sputtering device. At this time, the substrate 21 is sustained at normal temperature in the sputtering device. The Co atoms 31, the Pt atoms 32 and the SiO2 molecules 33 poured onto the substrate 21 form micro-sized metal particle nuclei scattered on the surface of the substrate 21. The density of the metal particle nuclei per unit surface area is remarkably heightened.
Patent KR-20030071040-A (KR)
Title: Headset for possible of mixer by voice
Inventor: PARK IN PYO
IPC: H04R1/10
Filed: 2002-02-27
Abstract: PURPOSE: A headset for mixing voices is provided to receive background music and voice signals from various channels by using a frequency hoping method of a bluetooth module. CONSTITUTION: A headset for mixing voices includes a microphone(100), an audio source portion(120), a mixer(130), a codec portion(140), a transmission/reception module(110), a speaker(150), and a control portion(160). The microphone(100) is used for receiving a user's voice. The audio source portion(120) stores plural audio sources. The mixer(130) mixes a voice signal and an audio signal from the mixer(130), and generates a voice mixing signal. The codec portion(140) converts the voice mixing signal to a digital signal. The transmission/reception module(110) is used for transmitting the voice mixing signal or receiving the predetermined voice data. The speaker(150) is used for outputting the voice signal. The control portion(160) controls operations of each element.
Patent KR-20030072957-A (KR)
Title: Ceiling-installed air conditioner
Inventor: AHN HYEOK SEONG
IPC: F24F1/00
Filed: 2002-03-07
Abstract: PURPOSE: A ceiling type air conditioner is provided to improve efficiency of the air conditioner as well as efficiency of a fan. CONSTITUTION: An air conditioner includes a case(10) installed in a ceiling, and having an inlet(11) and an outlet(12) formed on a bottom thereof to be connected with a room; a fan(20) installed in the case to be near the outlet, and including a rear guide(22) and a stabilizer(23) forming a channel for air to be discharged therethrough to introduce and discharge indoor air; a heat exchanger(30) installed in the case to be near the inlet so as to cool down introduced indoor air; and a drain pan(40) installed on a lower end of the heat exchanger to collect condensed air generated during heat exchange. The heat exchanger is installed at a height(h), preferably more than 20mm, from a bottom of the drain pan to form a space allowing introduced air to pass so that the introduced air passes the space and is introduced and discharged through a gap between the fan and the stabilizer. The heat exchanger is installed to be inclined toward the inlet at fixed angle(theta), preferably 50-60 deg.