Patent Application
20080000618
The present invention will be apparent to those skilled in the art by reading the following detailed description of preferred embodiments thereof, with reference to the attached drawings, in which:
Now, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, such that it can be carried out by those skilled in the art from reading.
In order to prevent an electronic component such as a chip on a circuit board or a CPU from being burned due to over heat, it is desired to provide an excellent clamping member for clamping firmly a heat dissipating plate (together with a fan) with the electronic component, to achieve good effect of heat dissipating.
Referring to
The base 1 has a rectangular hollowed frame 11. Two side walls 12, 17 are extending perpendicularly and downwardly from a pair of opposing sides of the frame 11 respectively, and each has a length shorter than the sides of the frame. Two hooks 121, 171 are protruding perpendicularly and inwardly from bottom edges of the side walls 12, 17. Two posts 13, 18 having elliptical end surfaces are extending perpendicularly and downwardly from the other pair of opposing sides of the frame 11 at their central portions respectively. The space defined by the two posts 13, 18 and the two side walls 12, 17 has identical shape with the hollowed space of the frame 11. A pivot passage 14 is provided on a surface of the frame 11 opposing to the post 13, and two passages 15, 16 are provided on the surface of the frame 11 opposing to the post 18. The pivot passage 14 and the passages 15, 16 are protruding upwardly from the surface of the frame 11, and each is shaped as a tube having an approximate circular end face. However, the tubes also can be designed to have a half-circular end face, or a concaved end face with one side opened. The passages 15, 16 are positioned at two sides of the corresponding position at the opposing side of the pivot passage 14. The passages 15, 16 and the pivot passage 14 are integrally formed with the base 11.
The elastic clamping member 2 has two parallel long sides 21, 22, whose head end and tail end are folded as two pairs of symmetrical triangles 221, 222, 211, 212. The two folded long sides 21, 22 are symmetrical each other, wherein the ends of the two triangles 222, 212 are folded continuously so as to form a perpendicular segment therebetween, which results in a distance between the two long sides 21, 22 and makes the rod integrally be U-shaped. The free ends of the two triangles 221, 211 are folded towards two opposite sides respectively so as to form two lugs 24, 25 which have an approximate right angle with the two triangles 221, 211. Such an arrangement is designed that the two long sides 21, 22 have elastic in relation to each other, that is to say, the two long sides 21, 22 can move closer and return back original status. In addition, since there are height differences between the triangles 221, 222, 211, 212 and the long sides 22, 21, the long sides 21, 22 have resilience of being pressed down or pulled up.
Besides the shape as shown in
The assembling process is shown in
Referring to
In consideration of the fact that encapsulations of chips generally have various thicknesses, the clamping member 2 of the present invention can be used for chips 3 with various thicknesses. As shown in
Referring to
Due to the characteristic of elasticity, the present invention can be applied to chips or heat dissipating plates with any thicknesses. The pressure of the clamping member 2 applied to the heat dissipating plate 4 is sufficient to keep the chip 3 to contact with the heat dissipating plate 4 closely. In addition, because the elastic clamping member 2 is a rod, which can be received within the gap between the heat dissipating columns (fins) no matter the heat dissipating columns or fins are used, it is not necessary to sacrifice some heat dissipating columns to enlarge the contact area in order to contact the rod with the surface of the heat dissipating plate 4.
Although the present invention has been described with reference to the preferred embodiments thereof, it is apparent to those skilled in the art that a variety of modifications and changes may be made without departing from the scope of the present invention which is intended to be defined by the appended claims.
