CN1747641A - Cooling module to prevent backflow of hot air - Google Patents

Abstract

The invention relates to a heat radiation module capable of preventing hot air from flowing back, which is used for radiating heat of a heating component, and at least comprises a fan, a radiator and a radiator fastener, wherein the radiator fastener is fixed on the heating component, the fan is assembled with the radiator so that fluid flowing through an inlet of the fan flows to the radiator at an outlet of the fan to indirectly help the heating component to radiate the heat, and the fan of the heat radiation module is provided with at least one blocking part which can prevent the fluid at the outlet of the fan from flowing back to the inlet of the fan after being heated by the radiator so as to improve the heat radiation efficiency.

Description

Cooling module to prevent backflow of hot air

technical field

The invention relates to a heat dissipation module capable of preventing hot air from flowing back, in particular to a heat dissipation module used for heat dissipation of heating components.

Background technique

Please refer to Fig. 1, Fig. 2 and Fig. 3 for the three-dimensional exploded schematic view of the traditional heat dissipation module structure applied to the heating component 12. As shown in the figure, the heat dissipation module includes a fan 14, a radiator 15 and a radiator fastener 16, and the heating component 12 is set in the base 13 of the machine board 11, wherein the base 13 is formed with several protruding blocks 131, and the radiator 15 is arranged on the surface of the heating component 12, which has several Fins 151, and a flow channel 152 is formed between the fins 151 for fluid flow, and the radiator fastener 16 is sleeved on the radiator 15, and has a frame cover 161, and the frame cover 161 is provided with a buckle parts 162, 163, and several through holes 164, the buckling parts 162, 163 are provided with hook holes 1621, 1631, so that the block 131 of the base 13 is snapped and engaged, so that the frame cover 161 is pressed Reach the radiator 15, and then make the radiator 15 fit and fix on the surface of the heating element 12, and the fan 14 has a frame 141 and a fan wheel 142, the frame 141 is provided with several through holes 1411, and the frame The body 141 has an inlet 1412 and an outlet 1413 on both sides, and the outlet 1413 is attached to the radiator 15, and at least one fixing component 17 passes through the through hole 1411 of the frame body 141 and the through hole 164 of the frame cover 161 so that the fan 14 is fixed on the radiator 15 and the radiator fastener 16 .

However, the above-mentioned traditional structure has the following problems in implementation: when the fan 14 is activated, the fluid is blown from the inlet 1412 of the fan 14 to the radiator 15 at the outlet 1413, and then flows out through the flow channel 152 of the radiator 15. The fluid flowing out from the flow channel 152 of the radiator 15 increases the temperature of the fluid due to the temperature transfer effect, and the temperature-increasing fluid flowing out around the radiator 15 moves upwards to the fan because of being guided by the action of the fan 14. 14 at the inlet 1412 of the fan 14, so that the heated fluid enters through the inlet 1412 of the fan 14 and blows to the radiator 15 at the outlet 1413. Such a cycle causes the efficiency of heat convection to be greatly reduced, thereby greatly reducing the heat dissipation efficiency.

Contents of the invention

The main purpose of the present invention is to provide a heat dissipation module capable of preventing backflow of hot air. At least one blocking portion is provided on the heat dissipation module to prevent the fluid heated by the radiator from flowing back to the inlet of the fan, thereby improving heat dissipation efficiency.

Another object of the present invention is to provide a heat dissipation module capable of preventing backflow of hot air, which can increase the service life of the heat generating components without complicated structures.

Another object of the present invention is to provide a cooling module capable of preventing backflow of hot air, wherein the blocking portion is made of sound-absorbing material to reduce noise.

The cooling module for preventing hot air backflow of the present invention at least includes a fan, a radiator and a radiator fastener, wherein the radiator fastener fixes the radiator on the heating element, the fan has an inlet and an outlet, Its outlet is assembled with the radiator so that the fluid passing through the fan inlet flows to the radiator at the fan outlet to indirectly help the heat-generating component dissipate heat. The fluid at the outlet of the fan is heated up by the radiator and then returns to the inlet of the fan, so as to improve the heat dissipation efficiency.

The above-mentioned purpose of the present invention and its structural and functional characteristics will be described according to the preferred embodiments of the accompanying drawings.

Description of drawings

FIG. 1 is a three-dimensional exploded schematic diagram of a traditional fan module;

Fig. 2 is a three-dimensional exploded and assembled view of a traditional fan module;

Fig. 3 is a cross-sectional schematic view of a conventional fan module;

Fig. 4 is a three-dimensional exploded schematic view of the first preferred embodiment of the present invention;

Fig. 5 is a three-dimensional combined schematic view of the first preferred embodiment of the present invention;

Fig. 6 is a cross-sectional schematic view of the first preferred embodiment of the present invention;

Fig. 7 is a three-dimensional exploded schematic diagram of a second preferred embodiment of the present invention;

Fig. 8 is a three-dimensional combined schematic view of the second preferred embodiment of the present invention;

Fig. 9 is a cross-sectional schematic view of the second preferred embodiment of the present invention;

Fig. 10 is a three-dimensional exploded schematic diagram of a third preferred embodiment of the present invention;

Fig. 11 is a three-dimensional combined schematic view of the third preferred embodiment of the present invention;

Fig. 12 is a cross-sectional schematic view of the third preferred embodiment of the present invention;

Fig. 13 is a three-dimensional combined schematic view of the fourth preferred embodiment of the present invention;

Fig. 14 is a perspective exploded schematic diagram of a fifth preferred embodiment of the present invention;

Fig. 15 is an exploded perspective view of a fifth preferred embodiment of the present invention;

Fig. 16 is a schematic diagram of another aspect of the gear part of the preferred embodiment of the present invention;

Fig. 17 is a schematic diagram of another aspect of the gear part of the preferred embodiment of the present invention;

Fig. 18 is a schematic diagram of another aspect of the gear part of the preferred embodiment of the present invention;

Fig. 19 is a schematic diagram of another aspect of the gear part of the preferred embodiment of the present invention;

Fig. 20 is a schematic diagram of another aspect of the gear part of the preferred embodiment of the present invention;

Fig. 21 is a schematic diagram of another aspect of the gear part of the preferred embodiment of the present invention.

Explanation of reference signs: 14 fan; 141 frame; 1411 through hole; 142 fan wheel; 1412 inlet; 1413 outlet; 15 radiator; 151 fin; Holder; 1621 through hole; 163 buckle; 1631 through hole; 164 through hole; 17 fixed component; 21 fan; 211 fan frame; 212 fan wheel; 213 through hole; 221 opening; 222 perforation; 223 buckle; 2231 hook hole; 224 buckle; 2241 hook hole; 23 radiator; 231 fin; 232 runner; 24 heating component; 261 fastening block; 27 fastening components; 314 retaining portion; 414 retaining portion; 514 retaining portion; 5141 side wall; 614 retaining portion; 62 radiator buckle; 63 radiator; seat.

Detailed ways

The present invention provides a heat dissipation module that prevents hot air from flowing back. Please refer to the first preferred embodiment of the present invention shown in FIGS. , a radiator 23 and a radiator fastener 22, wherein the fan 21 includes a fan frame 211 and a fan wheel 212, and the fan frame 211 has an inlet 2111 and an outlet 2112, and the four corners of the fan frame 211 are provided with transparent The hole 213 is used for the fastening assembly 27 to pass through, and the fan frame 211 is provided with an outwardly protruding blocking portion 214. The radiator 23 forms a plurality of fins 231, and the fins 231 and the fins 231 are formed between the fins 231 for The flow channel 232 for fluid flow, the radiator fastener 22 is provided with an opening 221 in the center, and its four corners are provided with perforations 222 for fixing the fan 21, and the radiator fastener 22 is formed on both outer sides with fasteners 223, 224, the buckling parts 223, 224 are provided with hook holes 2231, 2241, and a buckling part 224 is movably assembled on the radiator buckle 22; and the heating component 24 is arranged on a machine board In the base 26 of the base 25, the base 26 is a frame body capable of accommodating the heat sink 23, and the surrounding sides of the base 26 respectively extend outwards with buckling blocks 261.

When assembling, the heating element 24 is directly installed on the machine board 25 in the base 26, and the radiator 23 of the heat dissipation module is attached to the surface of the heating element 24, and then the fasteners on both sides of the radiator fastener 22 are fastened Parts 223, 224 hang down on both sides of the base 26 respectively, and the hook holes 2231, 2241 of the fastening parts 223, 224 are fastened to the fastening block 261 on the side of the base 26, and the radiator buckle 22 is placed on the radiator 23, and then presses the radiator 23 and fixes the radiator 23 on the heating element 24, and the outlet 2112 of the fan 21 is arranged on the radiator buckle 22, and through the The fastening component 27 passes through the through hole 213 of the fan frame 211 and the perforation 222 of the radiator fastener 22 so that the fan 21 is connected to the radiator 23 and the radiator fastener 22, and then the retaining portion 214 is arranged on the The radiator 23 is on the outlet peripheral side of the flow passage 232 .

With the combination of the above-mentioned assembled structures, the present invention is shown in FIG. 6 in actual use. When the fan 21 rotates, the fluid is driven into the inlet 2111 of the fan 21 and flows to the radiator 23 at the outlet 2112. When the fluid flows through the heat sink The flow channel 232 of the device 23 is affected by the heat sink 23 that transfers the heat of the heating component 24 through heat conduction, so that the fluid in the flow channel 232 is heated by the effect of temperature transfer and then flows out from both sides of the outlet of the flow channel 232, and The baffle portion 214 arranged on the outlet side of the flow channel 232 stops the heated fluid from flowing to the inlet 2111 of the fan 21, so as to prevent the heated fluid from flowing back to the radiator 23 to reduce the efficiency of heat convection. The implementation problems of the traditional structure are improved, so as to effectively improve the heat dissipation efficiency of the heat dissipation module and prolong the service life of the heat generating component 24 .

The above-mentioned retaining portion 214 can be integrally formed with the fan 21 or individually assembled without departing from the characteristics produced by the present invention.

Please refer to the second preferred embodiment of the present invention shown in Fig. 7, Fig. 8, and Fig. 9, its overall structure, function and implementation type are roughly the same as those of the previous embodiment, and the same structural effects and its implementation will not be repeated here. Symbols indicate that the difference is that the retaining portion 314 is connected and assembled with the radiator fastener 22, and the retaining portion 314 can also be integrally formed with the radiator fastener 22 or individually assembled to achieve the desired results of the present invention. generated characteristics.

Please refer to the third preferred embodiment of the present invention shown in Fig. 10, Fig. 11 and Fig. 12. Its overall structure, function and implementation type are roughly the same as those of the previous embodiment, so the same structural effects and its functions will not be repeated here. Symbols indicate that the difference is that the baffle 414 is connected and assembled with the radiator 23, and the baffle 414 can also be integrally formed with the radiator 23 or individually assembled to achieve the characteristics of the present invention. .

Please refer to the fourth preferred embodiment of the present invention shown in Fig. 13 again, its overall structure, function and implementation type are roughly the same as those of the previous embodiment, so the same structure, effect and symbolic representation thereof will not be repeated here, the differences The two sides of the blocking portion 514 are provided with or form sidewalls 5141 connected to the blocking portion 514, and the sidewalls 5141 are parallel to and adjacent to the fins 231 of the radiator 23. In addition, the blocking portion 514 and the sidewalls 5141 are also It can be integrally formed with the heat sink 23 or individually assembled to achieve the characteristics produced by the present invention.

Please refer to the fifth preferred embodiment of the present invention shown in Fig. 14 and Fig. 15. Its overall structure, function and implementation form are roughly the same as those of the above-mentioned embodiment, and the same structural effects and symbolic representations thereof will not be repeated here. The difference is that the radiator 63 is cylindrical, and its fins 631 extend radially around, and the flow channel 632 between the fins 631 and the fins 631 is also radial, and the radiator buckle 62 follows the The shape of the radiator 63 is circular, and the base 66 of the board 25 is also circular along with the radiator, and the baffle 614 is also designed to be circular and located on the fan frame of the fan 21 211 is arranged on the outlet side of the radial channel 632 after assembly, so as to prevent the heated fluid flowing out of the channel 632 from flowing back again.

Please refer to Fig. 16 to Fig. 21 again, the retaining parts 214, 314, 414, 514, 614 of the above-mentioned embodiments can also be formed in any shape such as: semicircle (as shown in Fig. 16), semi-ellipse (as shown in Fig. 17), trapezoidal (as shown in Figure 18), pentagonal (as shown in Figure 19), hexagonal (as shown in Figure 20), or irregular shape formation (as shown in Figure 21), but It is not limited to the shape in the figure, and it can also be formed in a shape that has not been described. In addition, the baffles 214, 314, 414, 514, 614 can be made of sound-absorbing materials, so that they can absorb the fan 21 and The noise generated by the fluid flow, thereby reducing the overall noise level of the body.

The above descriptions are only preferred feasible embodiments of the present invention, and all changes made by using the above-mentioned methods, shapes, structures, and devices of the present invention shall be included in the protection scope of the present invention.

Claims (13)

1. A heat dissipation module for preventing the backflow of hot air, used to dissipate heat from a heating element, at least comprising a fan, a radiator and a radiator fastener, wherein the radiator fastener fixes the radiator on the heating element , the fan has an inlet and an outlet, and the outlet is combined with the radiator so that the fluid passing through the fan inlet flows to the radiator at the fan outlet to indirectly help the heat-generating component dissipate heat. It is characterized in that: the heat dissipation module is set There is at least one baffle to prevent the fluid at the outlet of the fan from flowing back to the inlet of the fan after being heated by the radiator, so as to improve heat dissipation efficiency. 2. The heat dissipation module for preventing backflow of hot air as claimed in claim 1, wherein the blocking portion is disposed on the fan. 3. The heat dissipation module for preventing backflow of hot air as claimed in claim 2, wherein the blocking portion and the fan are integrally formed. 4. The cooling module with the function of preventing hot air from flowing back as claimed in claim 2, wherein the blocking portion and the fan are separate units. 5. The heat dissipation module capable of preventing backflow of hot air as claimed in claim 1, wherein the blocking portion is disposed on the heat sink. 6. The heat dissipation module for preventing the backflow of hot air as claimed in claim 5, wherein the blocking portion is integrally formed with the heat sink. 7. The heat dissipation module for preventing hot air backflow as claimed in claim 5, wherein the blocking portion and the heat sink are separate bodies. 8. The heat dissipation module capable of preventing backflow of hot air as claimed in claim 1, wherein the retaining portion is disposed on the radiator fastener. 9. The heat dissipation module for preventing the backflow of hot air as claimed in claim 8, wherein the retaining portion is integrally formed with the radiator fastener. 10. The heat dissipation module for preventing hot air backflow as claimed in claim 8, wherein the blocking portion and the diffuser are separate bodies. 11. The heat dissipation module capable of preventing backflow of hot air as claimed in claim 1, wherein the blocking portion can be in any shape. 12. The heat dissipation module for preventing backflow of hot air as claimed in claim 1, wherein the blocking portion is made of sound-absorbing material. 13. The heat dissipation module capable of preventing backflow of hot air as claimed in claim 1, wherein the blocking portion is provided with a side wall.

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