Abstract:
PURPOSE: A flat plate type heat transfer system with a fill port integrated into a main body is provided to make refrigerant injection tubes together with upper and lower plates of a main body with protrusions for preventing the permeation of an adhesive into rim areas, thereby improving the reliability and stability of the joining between the upper and lower plates. CONSTITUTION: A flat plate type heat transfer system with a fill port integrated into a main body includes a lower plate(48) partially contacting a heat source(50), an upper plate(42) of which a rim is joined with that of the lower plate, and a spacer plate(44) and a weak plate(46) stacked in sequence between the upper and lower plates. Refrigerant injection tubes are integrally formed in the upper and lower plates after both of the plates are joined. The upper and lower plates, and the weak or the space plates are formed with protrusions on inner surfaces for preventing an adhesive from permeating into the weak plate.
Abstract:
A microcooling device is provided. The microcooling device includes a substrate, a microchannel array, and a condenser. A predetermined region of a lower surface of the substrate contacts a heat source. The microchannel array is placed on the substrate so that a coolant concentrating portion is opposite to the predetermined region of the lower surface. The condenser fixes the microchannel array, condenses vapor generated in a process of cooling the heat source, and allows the condensed vapor to flow into the microchannel array.
Abstract:
PURPOSE: A flat type heat transferring device and method for fabricating the same are provided to reduce the fabricating cost and evaporative thermal resistance and to have wick structure suitable for super-slim type products, to an evaporation part and a condensing part. CONSTITUTION: A flat type heat transferring device has an evaporation part(P1) where a liquid refrigerant is evaporated, and a condensing part(P2) where vapor produced from the evaporation part is condensed. The liquid refrigerant is moved from the condensing part to the evaporation part by capillary force. The flat type heat transferring device comprises a lower plate(100) disposed at the bottom corresponding to the evaporation part; an upper plate(200) sealed tightly to the rim of the lower plate, to form a void between the lower and upper plates; a wick plate(120) disposed between the upper and lower plates and fastened closely to the lower plate by the surface tension of the liquid refrigerant; and the refrigerant transferring the heat, transferred from a heat source, from the evaporation part to the condensing part while circulating through the evaporation and condensing parts. The heat source contacts with the lower plate. The wick plate comprises plural holes and plural planar wicks and moves the liquid refrigerant from the condensing part to the evaporation part by the capillary force of the lower plate and the wick plate.
Abstract:
PURPOSE: A micro robot is provided to protect a power source by a protection cover by allowing the micro robot to move responsive to an interval change and shaking of masses constituting the micro robot and to allow a progression speed and direction thereof to be controlled by a rotation speed and rotation direction of a motor. CONSTITUTION: First and second masses(1,2) are formed at bottom of a body. A first contact plane(1a,2a) having a first friction coefficient and a second contact plane(1b,2b) having a second friction coefficient correspond to the surface of a moving object. The second contact plane(1b,2b) is formed at a predetermined slant angle with the first contact plane(1a,2a). An actuator is formed between the first mass(1) and the second mass(2). The actuator periodically changes an interval between the first and second masses(1,2), and selectively contacts the first contact plane(1a,2a) and the second contact plane(1b,2b) to the surface of the moving object, in synchronism with the periodically change of the interval between the first and second masses(1,2).