Heat-Radiator for CPU of a Computer

The present invention relates to a heat-radiator for CPU of a computer, and more particularly to a heat-radiator which employs a collection funnel and an air blower to radiate heat generated by the CPU outside the computer housing.

A CPU of a current computer works as an analytic center and a main heat generating source thereof. The faster the CPU operates, the higher the temperature created thereby is. The high temperature will not only affect the operation speed and life of the CPU, but also affect the functions of other parts of the computer. Therefore, a heat-radiator is necessary for lowering the temperature of the CPU.

A conventional heat-radiator for the CPU includes a radiator plate disposed on the CPU and a rotary fan installed on the radiator plate, whereby the air in the interior of the computer housing is blown and circulated to dissipate the heat. However, the hot air is blown and circulated inside the close computer housing. This creates a heating effect, gradually increasing the temperature in the housing. Therefore, the heat radiation effect provided by such conventional heat-radiator is quite limited and insufficient.

Therefore, an improved heat-radiator for CPU of a computer is needed to eliminate the above shortcoming.

It is therefore a primary object of the present invention to provide an improved heat-radiator for CPU of a computer, which includes an air exhaust box disposed on the interface socket of the computer main board and a collection funnel means located on the CPU and connected to the air exhaust box by a bellows. An air blower is disposed in the air exhaust box to suck hot air with the heat generated by the CPU outside the computer housing. A detector means is disposed in the air exhaust box and connected to the air blower by a circuit interface board inserted in an interface socket of the computer main board. The collection funnel means includes a collection funnel, a heat-radiating plate located on the CPU and two clamping casings for clamping the CPU under the collection funnel.

The present invention can be best understood through the following description and accompanying drawings, wherein:

FIG. 1 is a partially sectional plane view of one embodiment of the present invention;

FIG. 2 is a perspective view of a first embodiment of the collection funnel means of the present invention;

FIG. 3 is a perspective exploded view of the collection funnel means according to FIG. 2;

FIG. 4 is a plane view of the collection funnel means of the present invention in an associated state;

FIG. 5 is a plane view of the collection funnel means of the present invention in a separated state;

FIG. 6 is a perspective exploded view of a second embodiment of the collection funnel means of the present invention; and

FIG. 7 is a partially sectional plane view of another embodiment of the present invention.

Please refer to FIG. 1. The heat-radiator of the present invention includes an air exhaust box 1, a bellows 2 and a collection funnel means 3. The air exhaust box 1 is formed with an air exit 11 at the front end thereof. An air blower 12 is disposed at the front end of the air exhaust box 1 beside the air exit 11. A circuit interface board 13 is disposed in the air exhaust box 1 to connect with a temperature detector 14 and a circuit detector 15 disposed outside the air exhaust box 1 as shown in FIG. 7. The air exhaust box 1 further has an air incoming pipe 16 for the bellows 2 to fit around. A buzzer 151 can be connected with the circuit detector 15, whereby when the impedance of the circuit increases, the buzzer 151 can emit a warning sound.

Please refer to FIGS. 2 and 3. The collection funnel means 3 mainly includes a collection funnel 31, heat-radiating plate 32, pushing member 33, two hooking springs 35, a compression spring 34 and two clamping casings 36, 37. The collection funnel 31 has a hollow circular tube 311 downward extending from a top portion of the collection funnel 31, whereby the spring 34 is fitted around the circular tube 311 to abut against the heat-radiating plate 32. On two lateral sides of the collection funnel 31 are respectively formed two bosses 312 and slide rails 313 located thereunder. On the other two lateral sides of the collection funnel 31 are respectively formed two pairs of latch holes 314. In addition, an air outgoing pipe 315 is disposed on one of the lateral sides for the bellows 2 to fit therewith. The two clamping casings 36, 37 are substantially U-shaped and opposite to each other. On bottom ends of inner sides of the clamping casings 36, 37 are formed slide channels 361, 371 for slidably receiving the slide rails 313 of the collection funnel 31. The clamping casings 36, 37 respectively have two tenons 362, 372 on outer sides, whereby the spring 35 is hooked between the tenons to tightly associate the clamping casings 36, 37 together. The clamping casings 36, 37 further respectively have two opposite hooking sections 363, 373 downward extending from bottom ends thereof for hooking/clamping CPU (A). The pushing member 33 is also U-shaped and has two elliptic pivot plates 331 at two ends respectively. Each pivot plate 331 is formed with a central circular hole 3311 for pivotally fitting with the bosses 312 of the collection funnel 31. Two cylindrical projections 3312 are disposed on each pivot plate 331 respectively above and below the central circular hole 3311. The heat-radiating plate 32 is located on the CPU (A) and disposed with four latch hooks 321 on four corners respectively. The latch hooks 321 are up and down movably received in the latch holes 314 of the collection funnel 31. Multiple elongated column plates 322 are disposed on the heat-radiating plate 32 and a circular hole 323 is formed on a central portion thereof.

Please refer to FIG. 4 which shows the collection funnel means 3 in an associated state. When installed, the pushing member 33 is first pivoted upward. At this time, the cylindrical projections 3312 are moved toward the clamping casings 36, 37 to separate the same as shown in FIG. 5. Thereafter, the collection funnel means 3 is located on the CPU (A) and then the pushing member 33 is restored to its home position. At this time, the CPU (A) is clamped between the hook sections 363, 373. By means of the hook sections 363, 373, the present invention can be applied to different CPUs with various specifications to as well achieve very good heat-radiating effect. Also, the spring 34 presses the heat-radiating plate 32 against the CPU (A) so as to tightly contact therewith and achieve even better heat-radiating effect. Accordingly, the heat generated by the CPU (A) is conducted through the heat-radiating plate 32 and radiated therefrom to the ambient air. At this time, the hot air in the collection funnel 31 is sucked by the air blower 12 to flow through the bellows 2 and the air exit 11 of the air exhaust box 1 and discharge outside the computer housing. Meanwhile, the cold air in the computer housing will flow through the hollow circular tube 311 of the collection funnel 31 and the central circular hole 323 of the heat-radiating plate 32 to directly blow onto the CPU (A).

FIG. 6 shows another embodiment of the collection funnel means of the present invention, which includes a collection funnel 61, two elastic plates 62, 63, two hooking springs 64, a compression spring 34 and a heat-radiating plate 32. The two elastic plates 62, 63 are disposed on two opposite sides of the collection funnel 61 in such a manner that two pairs of engaging tenons 611 are respectively disposed on the opposite sides of the collection funnel 61 and each elastic plate 62, 63 is formed with two holes 621, 631 for the tenons 611 to fixedly engage therewith. Two ends of each hooking spring 64 are passed through slots 622, 632 formed on bottom ends of the elastic plates 62, 63, making the the hooking spring 64 hooked therebetween. In addition, the elastic plates 62, 63 further respectively have two opposite hooking sections 623, 633 on the bottom ends thereof for hooking/clamping the CPU. When the bottom ends of the two elastic plates 62, 63 are forced to overcome the resilient force of the hooking springs 64 and separate from each other, the CPU can be placed and detachably clamped between the hook sections 623, 633 as shown in FIG. 7. By means of the elastic plates 62, 63, different CPUs with various specifications can be tightly clamped in the collection funnel 61 and the spring 34 presses the heat-radiating plate 32 against the CPU so as to entirely tightly contact therewith for achieving better heat-radiating effect.

It is to be understood that the above description and drawings are only used for illustrating one embodiment of the present invention, not intended to limit the scope thereof. Any variation and derivation from the above description and drawings should be included in the scope of the present invention.