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    • 1. 发明授权
    • Framework connecting device of prefabricated building structure
    • 预制建筑结构框架连接装置
    • US08973332B2
    • 2015-03-10
    • US14122785
    • 2012-06-01
    • Dae young Lee
    • Dae young Lee
    • E04H12/00E04B1/19E04B1/24
    • E04B1/1903E04B1/24E04B2001/2415E04B2001/2418E04B2001/2451E04B2001/2487Y10T403/42Y10T403/73
    • Disclosed is a framework connecting device of a prefabricated building structure. Each connection portion of frameworks, which are formed in the shape of a square pipe so as to form columns, rafters or the like, is connected and fixed by front and rear connection pieces and a plurality of bolts and nuts which penetrate the same, wherein, during assembly, the frameworks and the front and rear connection pieces are coupled by indented groves and protrusion portions. Base protrusions of the front and rear connection pieces are supported by the frameworks. One or more support pipes which are respectively connected and fixed by bolts and the nuts are provided between the front and rear connection pieces. Therefore, the assembling work may be readily and easily carried out while the strength of the connection portions is being reinforced.
    • 公开了一种预制建筑结构的框架连接装置。 通过前后连接片和贯穿其的多个螺栓和螺母将框架形成为形成立柱,椽子等的形状的框架的每个连接部分连接和固定,其中 在组装期间,框架和前后连接件通过凹槽和突出部分联接。 前连接件和后连接件的基部突起由框架支撑。 通过螺栓和螺母分别连接和固定的一个或多个支撑管设置在前连接件和后连接件之间。 因此,可以容易且容易地进行组装作业,同时加强连接部的强度。
    • 4. 发明申请
    • Power-Saving LED Lighting Apparatus
    • 节能LED照明设备
    • US20110316432A1
    • 2011-12-29
    • US13212043
    • 2011-08-17
    • Dae Young Lee
    • Dae Young Lee
    • H05B37/00
    • H05B33/083H05B33/0809
    • Disclosed is a power-saving LED lighting apparatus in which the full-wave rectified wave form of the commercial power is used as the driving voltage. The LED lighting apparatus includes a rectifier circuit part which rectifies commercial power and outputs a rectified voltage; a plurality of LED arrays having a plurality of LEDs connected in series and the rectified voltage of the rectifier circuit part is supplied to an anode of the uppermost LED array; a driving part in which one terminal of each switching device for supplying or blocking a driving current to the plurality of LED arrays is connected to each anode of the plurality of LED arrays, and the other terminal thereof is connected to a cathode of the lowermost LED array; and a control part which outputs a control signal for turning on and off the switching devices according to a level of the rectified voltage.
    • 公开了一种省电LED照明装置,其中使用商用电源的全波整流波作为驱动电压。 LED照明装置包括整流电路部,整流电力并输出整流电压; 串联连接的多个LED和整流电路部分的整流电压的多个LED阵列被提供给最上面的LED阵列的阳极; 驱动部,其中用于向多个LED阵列提供或阻挡驱动电流的每个开关装置的一个端子连接到多个LED阵列的每个阳极,并且其另一个端子连接到最下面的LED的阴极 阵列 以及控制部,其根据整流电压的电平输出用于接通和断开开关器件的控制信号。
    • 6. 发明申请
    • AC/DC CONVERTER AND AC/DC CONVERSION METHOD USING THE SAME
    • AC / DC转换器和AC / DC转换方法
    • US20080285316A1
    • 2008-11-20
    • US12121586
    • 2008-05-15
    • Keun Hyung PARKDae Young LEEChang Woo HAN
    • Keun Hyung PARKDae Young LEEChang Woo HAN
    • H02H7/10H02M7/04H02J1/00
    • H02M1/44H02M1/15H02M7/2176H02M2001/0025H02M2001/007
    • Disclosed herein are an AC/DC converter which is simple in circuit configuration, generates little ElectroMagnetic Interference (EMI) and has no transformer so that it can be reduced in weight and size and improved in AC/DC conversion efficiency, and an AC/DC conversion method using the same. The AC/DC converter includes a rectification circuit for converting a commercial AC (85-264V) voltage into a ripple AC voltage, a first control circuit for comparing the converted ripple AC voltage with a reference voltage and outputting a first pulse control signal as a result of the comparison, a first switching circuit for switching and outputting the ripple AC voltage from the rectification circuit in response to the first pulse control signal outputted from the first control circuit, and a first charge storage circuit for smoothing the ripple AC voltage outputted from the first switching circuit to convert it into a primary DC voltage.
    • 这里公开了一种AC / DC转换器,其电路配置简单,几乎不产生电磁干扰(EMI),并且没有变压器,从而可以减轻重量和尺寸并提高AC / DC转换效率,并且AC / DC 转换方法使用相同。 AC / DC转换器包括用于将商用AC(85-264V)电压转换为纹波AC电压的整流电路,用于将转换的纹波AC电压与参考电压进行比较的第一控制电路,并将第一脉冲控制信号作为 比较结果是用于响应于从第一控制电路输出的第一脉冲控制信号,从整流电路切换并输出纹波AC电压的第一开关电路和用于平滑从第一控制电路输出的纹波AC电压的第一电荷存储电路 第一开关电路将其转换成初级直流电压。
    • 10. 发明授权
    • Regenerative evaporative cooler
    • 再生蒸发冷却器
    • US06338258B1
    • 2002-01-15
    • US09682036
    • 2001-07-12
    • Dae Young LeeByung Ha KangChun Sik Lee
    • Dae Young LeeByung Ha KangChun Sik Lee
    • F28D500
    • F24F5/0035F24F2001/0092F28D5/02Y02B30/545
    • A regenerative evaporative cooler, designed to improve the cooling efficiency of its regenerative evaporative cooling unit, is disclosed. In the cooler of this invention, the cooling unit consists of a dry channel and a wet channel arranged to closely come into contact with each other. The dry channel allows primary air to pass through, while the wet channel extracts a part of the primary air from the outlet end of the dry channel so as to form extracted air flowing in the wet channel in a direction opposite to the flowing direction of the primary air. A plurality of cooling fins are arranged in the dry and wet channels to allow the extracted air to come into direct contact with water so as to improve the water vaporization efficiency and the water vaporization area in the wet channel. A first blower fan sucks the primary air into the dry channel, while a second blower fan sucks a part of the primary air of the dry channel into the wet channel so as to form the extracted air. A water supply unit feeds water to the wet channel. In the cooler of this invention, the extracted air flowing in the wet channel absorbs heat from the dry channel by means of the wet channel fin, thus cooling the primary air flowing in the dry channel.
    • 公开了一种旨在提高其再生蒸发冷却单元的冷却效率的再生蒸发冷却器。 在本发明的冷却器中,冷却单元由干燥通道和布置为彼此紧密接触的湿通道组成。 干燥通道允许一次空气通过,而湿通道从干燥通道的出口端提取一部分一次空气,以便形成在湿通道中沿与 一次空气 多个冷却片布置在干燥和湿通道中,以使抽出的空气与水直接接触,从而提高湿气通道中的水汽化效率和水汽化面积。 第一鼓风机将一次空气吸入干燥通道,而第二鼓风机将干燥通道的一部分空气吸入湿通道,从而形成提取的空气。 供水单元向湿通道供水。 在本发明的冷却器中,在湿通道中流动的提取的空气通过湿通道翅片从干燥通道吸收热量,从而冷却在干燥通道中流动的一次空气。