CN207491437U - Heat spreader structures - Google Patents

Abstract

The utility model is a kind of heat spreader structures, it includes a cavitys and a heat sink, wherein cavity has a chamber, the fluid outlet of the fluid inlet of one connecting chamber and a connecting chamber, chamber has one first bottom surface for being set to edge and one second bottom surface within the first bottom surface, the depth of second bottom surface is more than the first bottom surface, the depth of the first bottom surface of thickness matching of heat sink, and the first bottom surface of imbedding and contact and it is contour with the surface of cavity, and the seam crossing of cavity and heat sink combines fixation for stirring welding, and heat sink integrally extends multiple heat-exchanging fins for being located in chamber and be fixedly welded on the second bottom surface；Accordingly by allow between heat sink and cavity with stirring be welded and fixed together, and multiple heat-exchanging fins is allowed to be fixedly welded on cavity simultaneously, can not only increase structural strength, and reduce thermal resistivity, further increase heat dissipation effect.

Description

Heat spreader structures

Technical field

The related radiator of the utility model, especially with respect to the structure of water-filled radiator.

Background technology

Radiator can quickly export waste heat caused by electronic component, increase stability and the service life of electronic component, It is widely used, in order to increase the radiating efficiency of radiator, can also install additional such as the air cooling system of fan or be carried out using fluid The water-cooling system of heat exchange.

In order to further increase the heat-conducting effect of radiator, if TaiWan, China announces M256052 patents, one is disclosed Kind radiator forming structure will be combined fixation between pedestal and heat radiator body in a manner of stirring and weld, and can utilize stirring The uniform seamless contact of welding and the interference of no third medium, effectively reduce thermal resistivity, use the heat dissipation for improving radiator Effect.

Heat spreader structures as described above are ventilation type radiator structure, and for high power electronic element, generally Water-cooling system can be used, because the heat that high power electronic element generates is comparable surprising, is please referred to together shown in Fig. 1 " again, For existing water-cooled radiating structure, it includes a cavity 1 and a heat sink 2, the cavity 1 has one to supply fluid (not shown) By a chamber 3, the heat sink 2, which has, stretches into multiple heat-exchanging fins 4 of the chamber 3, is supplied by the heat sink 2 High power electronic element (not shown) is contacted, and will be hot caused by high power electronic element, quickly taken away by the fluid.

This existing water-cooled radiating structure, the heat sink 2 are usually subject to the cavity 1 in a manner that general aluminium welds Sealing is fixed, furthermore 4 system of the multiple heat-exchanging fin extends, therefore its structure for unilateral fixed stretch into the chamber 3 Intensity slightly dislikes insufficient, has presented the only unilateral connection heat sink 2 of the multiple heat-exchanging fin 4 again, has been handed over just with water-cooled The mode changed radiates, can not meet using it is upper the needs of.

Utility model content

The main purpose of the utility model is to disclose a kind of high intensity and has the heat spreader structures of more high cooling efficiency, with full The demand of sufficient high power electronic element.

In order to achieve the above object, the utility model is a kind of heat spreader structures, it includes a cavity and a heat sink, wherein the chamber Body have one for a fluid by chamber, a connection chamber fluid inlet connect with one the fluid of the chamber and go out Mouthful, the chamber has one first bottom surface for being set to edge and one second bottom surface within first bottom surface, described The depth of second bottom surface is more than first bottom surface.

The depth of first bottom surface described in the thickness matching of the heat sink, and the first bottom surface described in imbedding and contact and with it is described The surface of cavity is contour, and the seam crossing of the cavity and the heat sink combines fixation, and the heat dissipation for stirring welding Plate integrally extends multiple heat-exchanging fins for being located in the chamber and being fixedly welded on second bottom surface.

Accordingly, the utility model has the advantage of be to be weldingly fixed on stirring between the heat sink and the cavity Together, and simultaneously the multiple heat-exchanging fin is to be fixedly welded on the cavity, therefore the heat dissipation of the utility model Bond strength between plate and the cavity is comparable enough, can be effectively increased structural strength, and the multiple heat-exchanging fin The heat source absorbed other than carrying out heat exchange using water cooling, more further utilizes the cavity using contact conduction Surface radiate, can further reduce thermal resistivity, and increase radiating efficiency.

Description of the drawings

Fig. 1 is existing heat spreader structures structure chart.

Fig. 2 is the utility model constructional appearance figure.

Fig. 3 is the constructional appearance figure of another angle of the utility model.

Fig. 4 A are the utility model lateral partial structurtes sectional view.

Fig. 4 B are the partial enlarged view of the utility model Fig. 4 A.

Fig. 5 is the utility model structural decomposition diagram.

Fig. 6 is another example structure decomposition diagram of the utility model.

Specific embodiment

Detailed description and technology contents in relation to the utility model, now just cooperation schema is described as follows：

It please refers to Fig. 2, Fig. 3, shown in Fig. 4 A, Fig. 4 B and Fig. 5, is the embodiment of the utility model, it includes a cavitys 10 With a heat sink 30, the cavity 10 have one for a fluid 20 (can be liquid or gas) by chamber 11, one connect The fluid outlet 13 that the fluid inlet 12 of the chamber 11 connects the chamber 11 with one, the chamber 11, which has, is set to edge One first bottom surface 14 and one second bottom surface 15 within first bottom surface 14, the depth of second bottom surface 15 be more than First bottom surface 14.

Please referring specifically to shown in Fig. 4 A and Fig. 4 B, the depth of the first bottom surface 14 described in the thickness matching of the heat sink 30, And the first bottom surface 14 described in imbedding and contact and contour with the surface of the cavity 10 and described cavity 10 and the heat sink 30 Seam crossing 40 combines fixation for stirring welding, and the heat sink 30 integrally extends and multiple is located in the chamber 11 and weldering The heat-exchanging fin 31 for being fixed on second bottom surface 15 is connect, the multiple heat-exchanging fin 31 is fixedly welded on second bottom The mode in face 15 can select any of brazing, soldering and high frequency weldering.Due to the side of the multiple heat-exchanging fin 31 Integrally to be extended out by the heat sink 30, and the opposite side of the multiple heat-exchanging fin 31 is then fixedly welded on described On two bottom surfaces 15, therefore all there are fixation in the both sides of the multiple heat-exchanging fin 31, thus can greatly increase structural strength.

Again please referring specifically to shown in Fig. 5, a side 111 of the chamber 11 can extend a water flow partition board 16, described Fluid inlet 12 is located at the side 111 respectively with the fluid outlet 13 and is located at the both sides of the water flow partition board 16, and institute It can be equidirectional put, and the surrounding of the chamber 11 can be distinguished to state multiple heat-exchanging fins 31 and the water flow partition board 16 Arc angle 112 is led with one, arc angle 112 is led with described by the water flow partition board 16, the fluid 20 can be guided by the stream Body entrance 12 enters the chamber 11, and flows through each region of the multiple heat-exchanging fin 31 as possible, by the fluid 13 outflow of outlet.

It is another embodiment of the utility model, the fluid inlet 12 and the fluid outlet referring again to shown in Fig. 6 13 can also be located at the both sides of the chamber 11, and in order to reach best heat exchange effect, the heat sink 30 integrally prolongs respectively 31 direction of multiple heat-exchanging fins stretched and the direction of the fluid inlet 12 can be that vertical direction is furnished, further, institute Stating has the Waterflow-guiding block 17 of multiple guiding 20 vertical ductions of fluid around chamber 11, can control the fluid Flow direction allows the fluid to flow through each region of the multiple heat-exchanging fin 31 as possible, and can increase the stream The time of contact of body and the multiple heat-exchanging fin 31, to improve heat exchanger effectiveness.

It is included at least as described above, the utility model compares the advantages of existing：

1. being to be welded and fixed together with stirring between the heat sink and the cavity, the consistency of weld seam is comparable Well, without fire check, impurity, stomata the defects of, thermal resistance can be effectively reduced, while there is good structural strength.

2. the side of the multiple heat-exchanging fin is integrally extends out by the heat sink, and opposite side is solid for welding Due on the cavity, that is, the heat sink and the cavity are fixed in the both ends of the multiple heat-exchanging fin respectively, knot It is comparable enough to close intensity, overall construction intensity can be effectively increased.

3. the multiple heat-exchanging fin is other than carrying out water cooling heat exchange, more directly further using contact conduction It is radiated using the surface of the cavity, can further reduce thermal resistivity, and increase radiating efficiency.

4. by water flow partition board, leading arc angle and the setting of Waterflow-guiding block, the flow direction of the fluid is guided, is effectively increased water The heat exchanger effectiveness of cooling system, and increase the time of contact of the fluid and the multiple heat-exchanging fin.

Claims (7)

1. a kind of heat spreader structures, which is characterized in that include：

One cavity, the cavity have one for a fluid by chamber, a connection chamber fluid inlet connected with one The fluid outlet of the chamber, the chamber have one first bottom surface for being set to edge with being located within first bottom surface One second bottom surface, the depth of second bottom surface are more than first bottom surface；And

One heat sink, the depth of the first bottom surface described in the thickness matching of the heat sink, and the first bottom surface described in imbedding and contact and It is contour with the surface of the cavity, and the seam crossing of the cavity and the heat sink combines fixation, and institute for stirring welding It states heat sink and integrally extends multiple heat-exchanging fins for being located in the chamber and being fixedly welded on second bottom surface.

2. heat spreader structures according to claim 1, which is characterized in that a side of the chamber extend a flow every Plate, the fluid inlet are located at the side with the fluid outlet and respectively positioned at the both sides of the water flow partition board.

3. heat spreader structures according to claim 2, which is characterized in that the multiple heat-exchanging fin and the flow every Plate is put to be equidirectional.

4. heat spreader structures according to claim 3, which is characterized in that the surrounding of the chamber is respectively provided with one and leads arc Angle.

5. heat spreader structures according to claim 1, which is characterized in that the fluid inlet is distinguished with the fluid outlet Positioned at the both sides of the chamber.

6. heat spreader structures according to claim 5, which is characterized in that the direction of the multiple heat-exchanging fin with it is described It is furnished for vertical direction in the direction of fluid inlet.

7. heat spreader structures according to claim 6, which is characterized in that have described in multiple guidings around the chamber The Waterflow-guiding block that fluid orthogonal turns to.