Attaching structure of component for mounting heating element

Abstract

The invention improves the heat radiation efficiency by improving the heat conduction efficiency after ensuring downsizing. A plurality of projections 15 are formed on a attaching surface of a base plate 10 and the base plate 10 is structured so as to be attached to a heat radiation member via a heat conduction sheet 18 formed by a softer material than that of the base plate 10.

1 . An attaching structure of a component for mounting a heating element comprising:
 a component for mounting a heating element to mount a heating element, the component for mounting the heating element having an attaching surface with a plurality of projections;   a heat radiation member; and   a heat conduction sheet formed by a softer material than that of the component for mounting the heating element and arranged between the attaching surface of the component for mounting the heating element and the heat radiation member, and the plurality of projections of the component for mounting the heating element being pushed into the heat conduction sheet.   
     
     
         2 . The attaching structure of the component for mounting the heating element according to  claim 1 , wherein the plurality of projections of the component for mounting the heating element are installed overall the attaching surface. 
     
     
         3 . An attaching structure of a component for mounting a heating element comprising:
 a component for mounting a heating element to mount a heating element, the component for mounting the heating element having an attaching surface with a plurality of projections;   a heat radiation member having an attaching surface with a plurality of projections; and   a heat conduction sheet arranged between the attaching surface of the component for mounting the heating element and the attaching surface of the heat radiation member and formed by a softer material than those of the component for mounting the heating element and the heat radiation member, and the plurality of projections of the component for mounting the heating element and the plurality of projections of the heat radiation being pushed into the heat conduction sheet.   
     
     
         4 . An attaching structure of a component for mounting a heating element comprising:
 a component for mounting a heating element to mount a heating element and the component for mounting the heating element having a attaching surface;   a heat radiation member having a attaching surface; and   a heat conduction sheet arranged between the attaching surface of the component for mounting the heating element and the attaching surface of the heat radiation member and formed by a harder material than those of the component for mounting the heating element and the heat radiation member, and the heat conduction sheet having a plurality of projections pushed into the attaching surface of the component for mounting the heating element and a plurality of projections pushed into the attaching surface of the heat radiation member.   
     
     
         5 . An attaching structure of a component for mounting a heating element comprising:
 a component for mounting a heating element to mount a heating element and the component for mounting the heating element having a attaching surface;   a heat radiation member having a attaching surface with a plurality of projections; and   a heat conduction sheet arranged between the attaching surface of the component for mounting the heating element and the attaching surface of the heat radiation member and formed by a softer material than that of the heat radiation member, and the plurality of projections of the heat radiation member being pushed into the heat conduction sheet.   
     
     
         6 . The attaching structure of the component for mounting the heating element according to  claim 1 , wherein the plurality of projections are in a polygonal pyramid shape, a conical shape, a curved shape, a needle shape, or a ring shape. 
     
     
         7 . The attaching structure of the component for mounting the heating element according to  claim 1 , wherein the component for mounting the heating element makes face-contact with the heat conduction sheet and the heat conduction sheet makes face-contact with the heat radiation member. 
     
     
         8 . An attaching structure of a component for mounting a heating element comprising:
 a component for mounting a heating element to mount a heating element and the component for mounting the heating element having an attaching surface with a plurality of projections;   a heat radiation member having an attaching surface with a plurality of projections; and   a heat conduction sheet arranged between the attaching surface of the component for mounting the heating element and the attaching surface of the heat radiation member, and having a plurality of projections fit to the plurality of projections of the component for mounting the heating element and the plurality of projections of the heat radiation member:   wherein the plurality of projections of the component for mounting the heating element, the plurality of projections of the heat radiation member, and the plurality of projections of the heat conduction sheet are in a polygonal pyramid shape, a conical shape, a curved shape, a needle shape, or a ring shape.   
     
     
         9 . The attaching structure of the component for mounting the heating element according to  claim 8 , wherein the plurality of projections of the component for mounting the heating element are installed overall the attaching surface of the component for mounting the heating element, and the plurality of projections of the heat radiation member are installed overall the attaching surface of the heat radiation member, and the plurality of projections of the heat conduction sheet are installed overall both surfaces of the heat conduction sheet. 
     
     
         10 . An attaching structure of a component for mounting a heating element comprising:
 a component for mounting a heating element to mount a heating element and the component for mounting the heating element having an attaching surface with a plurality of projections; and   a heat radiation member having an attaching surface with a plurality of projections fit to the plurality of projections of the component for mounting the heating element:   wherein the plurality of projections of the component for mounting the heating element and the plurality of projections of the heat radiation member are in a polygonal pyramid shape, a conical shape, a curved shape, a needle shape, or a ring shape.   
     
     
         11 . The attaching structure of the component for mounting the heating element according to  claim 10 , wherein the plurality of projections of the component for mounting the heating element and the plurality of projections of the heat radiation member are installed overall the respective attaching surfaces. 
     
     
         12 . The attaching structure of the component for mounting the heating element according to  claim 1 , wherein the heat conduction sheet is formed by a metallic material. 
     
     
         13 . The attaching structure of the component for mounting the heating element according to  claim 1 , wherein the component for mounting the heating element is a semiconductor package.