Abstract: The present disclosure relates to a cooling apparatus for an electronic element, and particularly, includes a printed circuit board which has a plurality of electronic elements provided on one surface thereof as a unit heat-generating element, a housing main body which has the other surface of the printed circuit board accommodated to be in close contact therewith, and has a plurality of first cooling ribs provided to protrude from the outer surface thereof, an additional cooling part which is disposed to be spaced apart from the outer surface of the housing main body, and dissipates heat transferred from the housing main body, and a heat transfer part which has one end connected to the outer surface of the housing main body and the other end connected to the additional cooling part to transfer heat generated from the electronic element to the additional cooling part, thereby improving cooling performance.

Abstract: The present disclosure relates to a multiple-input and multiple-output antenna apparatus, and particularly, includes a housing, a ray dome which is coupled to the top of one side of the housing in a longitudinal direction, and has an antenna assembly disposed between the ray dome and the housing, a PCB assembly which is disposed at the bottom of the antenna assembly, a top cooling part which is coupled to the top of the other side of the housing in the longitudinal direction, has a battery and an FPGA assembly disposed between the top cooling part and the housing, and dissipates upward the heat discharged from the FPGA assembly, and a side cooling part which is coupled to protrude to one side in a width direction between the housing and the top cooling part and the other side in the width direction therebetween, and moves and dissipates the heat generated from the FPGA assembly to one side and the other side of the housing in the width direction, thereby improving cooling performance.

Abstract: The present invention relates to a stand-type LED lighting device comprising: a stand part; a support part fixed to the stand part and extending upwards; and a lighting part fixed to the upper part of the support part and emits light, wherein the lighting part comprises: an inclined reflective plate; an upper lighting part positioned above the reflective plate; and a lower lighting part positioned below the reflective plate. In the present invention, the lighting part is divided into the upper and lower lighting parts, and the reflective plate is provided between the upper and lower lighting parts so as to enable each or both of the upper lighting part and the lower lighting part to be used according to a user's selection, thereby enabling the stand-type LED lighting device to be used as a room lighting lamp or a mood lamp, in accordance with circumstances.