KR200225878Y1 - The Heat Sinks be Improved Shape of Al Fin - Google Patents

Abstract

The present invention relates to the improvement of a heat sink for a computer central processing unit, Utility Model Application No. 20-2000-0016821 filed earlier than the present invention, which is attached to a central processing unit to transfer heat. The base and fin are formed in a structure in which the contact parts of the fins formed in the form of acid and valley are widely joined in a straight line shape to heat the heat generated from the central processing unit. It is to improve the thermal conductivity to be transmitted to the surface of the fin (Fin) and the slitting (Slit) is not applied to reduce the increase in the heat radiation resistance by the louver (Louver) to improve the heat radiation performance further.

Description

Heat sink with improved shape of aluminum fins {The Heat Sinks be Improved Shape of Al Fin}

The present invention relates to an improvement of the heat sink (6) for the utility model computer application No. 20-2000-0016821 filed earlier than the present invention, which is attached to the central processing unit The central processing unit (Central Processing Unit) further improves the heat dissipation performance by forming a structure in which the contact portion of the base (8) that transfers heat and the pin (9) formed in the form of an acid and a valley with a thin aluminum plate is joined in a linear shape. The heat sink 6 for this invention is related.

Utility Model Application No. 20-2000-0016821 has a thermal conductivity of a base 2 made of an aluminum plate directly contacting a central processing unit and a fin 3 for dissipating heat in the air, as shown in FIG. In order to increase the heat resistance, the thin aluminum plate is formed with acid and bone to join using NOCOLOK BRAZING, and the heat dissipation performance is improved, but the contact area between the base 2 and the fin 3 is small so that the base 2 Heat conductivity from the fin to the fin 3 falls, and the heat dissipation performance falls.

In addition, the louver 4 is produced by the slitting process on the surface of the pin 3, the heat dissipation resistance is increased by the louver 4, and dust or foreign matter adheres to the slitting process when it is used for a long time. It has the disadvantage that the heat dissipation performance is reduced.

The present invention relates to an improvement of a heat sink for a computer processing unit, Utility Model Application No. 20-2000-0016821, filed earlier than the present invention, and a base, fin, and an aluminum plate for cooling fan. It is a structure that connects integrally by using NOCOLOK BRAZING, and improves the shape of the pin or the structure of the base to facilitate heat transfer from the computer central processing unit and to improve heat dissipation performance. The purpose is to provide a heat sink.

1 is a perspective view of a computer CPU heat sink filed prior to the present invention

2 is a perspective view of a computer CPU heat sink of the present invention

3 is a detailed view of the base and the pin joint structure of the present invention

Explanation of symbols on the main parts of the drawings

1,6... Heat sink 2,8... Base (aluminum)

4… Louver 3,9... pin

5... Plate for attaching cooling fan 7.. Base (copper)

As shown in FIG. 2, copper having a higher thermal conductivity than aluminum (thermal conductivity: 0.52) is disposed on a surface directly contacting the central processing unit for thermal conductivity generated from the central processing unit. : 0.93) to form the base 7 lower part, and for joining with the aluminum fin 9, the upper part constitutes a rectangular hetero-rolled base made of aluminum 8, and is transmitted through the bases 7 and 8. It consists of a pin (9) formed by forming a thin aluminum plate in the form of corrugations of a number of mountains and valleys so that the heated heat is released into the air. In particular, the surface joined to the base 8 of the fin 9 and the aluminum plate 5 for attaching the cooling fan has a straight shape to improve heat transfer, and the surface of the fin 9 has a heat dissipation performance by louvers. In order to prevent this reduction, molding is performed without slitting.

In addition, to form a cooling fan in the upper portion by forming an aluminum plate 5 through which the center of the rectangle is penetrated circularly on the top of the fin 9.

The bases 7 and 8, the fins 9, and the aluminum plate 5 for attaching the cooling fan thus constructed are joined using the NOCOLOK BRAZING method.

The present invention relates to the improvement of the heat sink for the utility model application No. 20-2000-0016821 computer central processing unit filed before the present invention, the base (7,8) and heat of the heat sink (6) The fins 9 and the aluminum plate 5 for cooling fan attachment are joined at a high temperature, and the bases 11 and 12 have aluminum on the surface directly contacting the central processing unit. 0.52) has a higher thermal conductivity than copper (heat conductivity: 0.93) at the bottom of the base (7), and a heterogeneous rolling base consisting of aluminum and the upper base (8) for bonding with the fins to improve heat conductivity. The fins 9 that dissipate heat into the air are corrugated with several mountains and valleys. In particular, the surface joined to the base 8 has a straight structure, which generates heat generated from the computer central processing unit. The best The performance transmitted to the fins 9 through the switches 7 and 8 is improved, and since the slitting is not applied to the surface of the fins 9, the heat dissipation resistance by the louver 4 is increased, and for a long time When used, it is configured to provide the effect of preventing the phenomenon of heat dissipation decrease due to adhesion of dust or foreign matter to the slit processing part.

Claims (1)

A first base plate 7 formed of a copper material and installed on an upper surface of a computer processing unit, A second base plate made of aluminum provided on the first base plate; Heat dissipation fins installed on top of the second base plate 8 and formed of a thin aluminum plate in the form of corrugations of a number of hills and valleys so that heat transferred through the first and second bases 7 and 8 is dissipated in the air. (9); And Is installed on top of the heat dissipation fin (9), and a circular hole of a predetermined size is formed in the center portion thereof to include an aluminum support member (5) for attaching and supporting a cooling fan, At least one joining portion of the heat dissipation fin 9 joined to the top surface of the second base plate and the bottom surface of the support member is formed in a straight line shape, Each of the first and second base plates, the heat dissipation fins, and the support member is bonded to each other by using Nocolok Brazing.