CN200944725Y - radiator structure - Google Patents

Abstract

The utility model relates to a radiator structure, it contains a central heat conductor, and a plurality of heat radiation fins are extended to central heat conductor periphery, and inside has the through-hole that both ends run through, and through-hole both ends mouth closes with an apron and a bottom plate airtight lid respectively, forms the appearance room that can supply to fill cooling liquid, and wherein the bottom plate adopts the material that heat-conduction coefficient is higher than the radiator. The base plate can conveniently replace the material with higher heat conduction coefficient, so that the heat absorption and conduction effects are faster and better, and the auxiliary radiating fin design is matched, so that the heat exchange area with the cooling liquid can be increased, the vortex mixing effect of the cooling liquid can be increased, the absorbed heat can be more quickly and uniformly diffused, and the fastest and most efficient radiating effect is provided.

Description

radiator structure

technical field

The utility model relates to a radiator structure, which is arranged in the core computing unit of an electronic product to absorb, conduct and radiate heat energy.

Background technique

As shown in Figure 1, it is a kind of "radiating device" disclosed in Taiwan Application No. 94130223, which includes a cooling fan 50 and a radiator 21, and the radiator 21 is directly placed in contact with the heating element 81 to absorb For the thermal energy, the cooling fan 50 is arranged on the radiator 21 to dissipate the thermal energy.

Wherein, the heat sink 21 includes a central heat conducting body 22, and a plurality of heat dissipation fins 23 extend outward from the periphery of the central heat conducting body 22, and the central heat conducting body 22 has a unilaterally penetrating slot hole, and the port of the slot hole is marked with A cover plate 24 is airtightly closed to form an absolutely airtight hollow chamber 221, which is filled with a cooling liquid, and is provided with an agitator 25, the agitator 25 and the rotor 53 of the cooling fan 50 are in corresponding positions Each is provided with magnetically conductive components 251 , 54 that attract and attract each other magnetically, so that the agitator 25 and the rotor 53 can operate synchronously.

Therefore, when the agitator 25 and the rotor 53 operate synchronously, the cooling liquid filled in the chamber 221 can be stirred, so that the cooling liquid that has absorbed heat energy becomes a dynamic hot liquid, and the heat energy is evenly diffused and conducted to each A heat dissipation fin 23 is used to facilitate the heat dissipation of the heat dissipation fan 50 .

It can be seen that the speed of the heat conduction rate of the radiator 21 will determine the heat dissipation effect of the entire heat dissipation module, because the cooling liquid in the chamber 221 must still absorb the heat energy of the heating element 81 through the heat conduction effect of the radiator 21. When the heat transfer rate of the radiator 21 is low, the agitator 25 is useless. Only when the heat transfer rate of the radiator 21 is high, the agitator 25 can double the heat dissipation effect. Therefore, in the spirit of excellence, the utility model further improves the heat conduction rate of the radiator, in order to achieve a faster and more efficient heat dissipation effect.

Contents of the invention

In view of the above problems, the main purpose of the present utility model is to provide a heat sink structure, the heat energy absorbed by it can be diffused out more quickly and evenly, so as to obtain the fastest and most efficient heat dissipation effect.

In order to achieve the above purpose, the utility model provides a heat sink structure, which includes a central heat conductor, a plurality of heat dissipation fins extending around the central heat conductor, and a through hole with two ends penetrating inside, which is characterized in that: The two ports of the through hole are respectively sealed and covered by a cover plate and a bottom plate to form a chamber for filling cooling liquid.

In the above-mentioned technical solution of the present invention, the thermal conductivity of the bottom plate material is higher than the thermal conductivity of the central heat conductor material.

In the technical solution of the present invention described above, a plurality of auxiliary cooling fins protrude from the side of the bottom plate facing the chamber.

In the above-mentioned technical solution of the present invention, the auxiliary cooling fins are protrusions of any shape such as cylinder, square column or sheet.

In the technical solution of the utility model described above, the auxiliary cooling fins are of unequal height design.

In the above-mentioned technical solution of the utility model, the height of the auxiliary cooling fins is designed to be the highest in the center, and the height of the auxiliary fins is gradually reduced in steps around the periphery.

In the above-mentioned technical solution of the utility model, the height of the auxiliary cooling fins is designed to be the highest around, and gradually decreases toward the center in steps.

In the above-mentioned technical solution of the utility model, the bottom plate is combined with the through hole of the central heat conductor by means of screwing, riveting or adhesion.

In the above-mentioned technical solution of the present invention, the end surface of the central heat conductor corresponding to the bottom plate is provided with an annular groove, and an O-ring is placed in the annular groove.

In the above-mentioned technical solution of the utility model, an agitator capable of rotating and agitating the cooling liquid is provided in the chamber.

By adopting the above technical solution, the utility model can quickly absorb the heat energy of the heating element and quickly transfer it to the cooling liquid because the bottom plate of the utility model can be easily replaced with a material with a high thermal conductivity. Coupled with the design of auxiliary cooling fins, when the agitator stirs the cooling liquid, these auxiliary cooling fins can increase the heat exchange area with the cooling liquid on the one hand, and increase the eddy mixing effect of the cooling liquid on the other hand, so that the absorbed heat energy It diffuses out more quickly and evenly, providing the fastest and most efficient heat dissipation effect.

Description of drawings

Fig. 1 is the overall sectional schematic diagram of conventional structure;

Fig. 2 is an exploded schematic view of the first embodiment of the utility model;

Fig. 3 is an overall cross-sectional schematic diagram of the first embodiment of the utility model;

Fig. 4 is an exploded schematic view of the second implementation of the utility model;

Fig. 5 is a schematic overall cross-sectional view of the second embodiment of the present invention;

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

Fig. 7 is a schematic overall cross-sectional view of a fourth embodiment of the present invention.

Detailed ways

The utility model relates to a heat sink structure. The central heat conducting body of the heat sink has a through hole through which two ends pass through. The two ends of the through hole are respectively sealed and covered by a cover plate and a bottom plate to form an absolutely airtight hollow space. In the container chamber, the bottom plate can be made of a material with a high thermal conductivity, which can absorb and conduct heat energy generated by the heating element more quickly, which is beneficial to the cooling fan to dissipate heat.

Several preferred implementation modes are enumerated below, and the relevant positions of the components of the present utility model are illustrated with reference to the accompanying drawings.

As shown in Fig. 2 and Fig. 3, the heat sink 21 has a central heat conductor 22, and a plurality of heat dissipation fins 23 are integrally extended outwards from the periphery of the central heat conductor 22, and a through hole is provided in the central heat conductor 22, and the through hole is in the shape of two sides. The end-through type, and the ports at both ends are hermetically covered with a cover plate 24 and a bottom plate 27, and the covering method can be screwed (as shown in the figure), riveted or glued, etc. Any combination that can achieve a sealing effect.

The end surfaces of the central heat conductor 22 corresponding to the cover plate 24 and the bottom plate 27 are respectively provided with ring grooves 222 , and O-rings 223 are placed in the ring grooves 222 , so that the chamber 221 forms an absolutely airtight space.

The chamber 221 is filled with a cooling liquid, and is provided with an agitator 25, and a cooling fan 50 is arranged above the radiator 21, and the rotor 53 of the agitator 25 and the cooling fan 50 is respectively provided with magnetic mutual attraction, The magnetically permeable components 251 and 54 are pulled together so that the agitator 25 and the rotor 53 can operate synchronously.

The bottom plate 27 of the present utility model is combined with the central heat conductor 22 by means of screwing, riveting or adhesion, etc., so that the bottom plate 27 can conveniently adopt materials with a higher thermal conductivity than the central heat conductor 22, such as copper and silver. ...and other materials with high thermal conductivity, when the base plate 27 contacts the heating element 81, it can more quickly absorb and conduct the heat energy generated by the heating element 81, and quickly transfer the heat energy to the cooling liquid in the chamber 221 for absorption.

Therefore, when the agitator 25 is used to agitate the cooling liquid, the heat dissipation effect can be doubled, and the cooling liquid that has absorbed heat energy becomes a dynamic hot liquid, and the heat energy is evenly diffused and conducted to each cooling fin 23 immediately, so that It is beneficial for the heat dissipation fan 50 to dissipate heat, so as to achieve a faster and more efficient heat dissipation effect.

In addition, as shown in Fig. 4 and Fig. 5, a plurality of auxiliary cooling fins 271 are added on the side of the bottom plate 27 facing the chamber 221, and these auxiliary cooling fins 271 can be in any shape such as cylindrical, square column or sheet... The protrusion shape (cylindrical shape shown in the figure) is used to assist the conduction and diffusion of heat energy to the cooling liquid more quickly and over a larger area.

Therefore, when the agitator 25 stirs the cooling liquid, these auxiliary cooling fins 271 increase the contact area with the cooling liquid on the one hand, and more quickly improve the efficiency of heat exchange; The heat can be conducted to each cooling fin 23 more quickly and evenly, so as to facilitate the heat dissipation of the cooling fan 50 .

Furthermore, when the auxiliary heat sinks are designed with different heights, the cooling liquid impacts the auxiliary heat sinks with different heights, and the generated turbulent flow fields are also different, thus causing more eddy currents in the chamber 221 .

As shown in Fig. 6, the height of the auxiliary cooling fins 272 on the bottom plate 27 is the highest in the center, and the surroundings are designed in a step-by-step manner, so that the cooling liquid hits the auxiliary cooling fins 272 arranged in layers in sequence, and in the chamber 221 produce more disturbing eddies.

Also as shown in Figure 7, the height of the auxiliary cooling fins 272 of this embodiment is the highest around, and the design of step-wise decreasing towards the center makes the cooling liquid form a swirling flow between each auxiliary cooling fins 272, which can make cooling The heat absorbed by the liquid is dissipated more quickly to provide the best cooling effect.

To sum up, the heat sink designed by the utility model can be easily replaced with a base plate with a better heat conduction rate, and provides better heat conduction and heat diffusion functions to quickly take away the heat energy generated by the heating element. If it is combined with auxiliary heat dissipation Fin design, on the one hand, increases the contact area with the cooling liquid, on the other hand, forms more vortex mixing effects, so that the heat absorbed by the cooling liquid can be transmitted to each cooling fin more quickly and evenly, which is the best among similar products. It is the first of its kind.

The above is only a preferred implementation form of the utility model, and all equivalent structural changes made by using the specification, claims or drawings of the utility model shall be included in the patent protection scope of the utility model.

Claims (10)

1. A heat sink structure, which comprises a central heat conductor, a plurality of heat dissipation fins extending around the central heat conductor, and a through hole with two ends penetrating inside, characterized in that: the two ports of the through hole are respectively connected by a The cover plate is airtightly closed with a bottom plate to form a chamber for filling cooling liquid. 2. The heat sink structure according to claim 1, characterized in that: the thermal conductivity of the material of the bottom plate is higher than the thermal conductivity of the material of the central heat conductor. 3. The radiator structure according to claim 1, wherein a plurality of auxiliary cooling fins protrude from the side of the bottom plate facing the chamber. 4. The heat sink structure according to claim 3, wherein the auxiliary cooling fins are protrusions of any shape such as a cylinder, a square column or a sheet. 5. The radiator structure according to claim 3, characterized in that: the auxiliary cooling fins are designed with unequal heights. 6. The heat sink structure according to claim 5, characterized in that: the height of the auxiliary heat sink is designed to be the highest in the center, and the height of the auxiliary heat sink is gradually reduced in steps around it. 7. The heat sink structure according to claim 5, characterized in that: the height of the auxiliary cooling fins is designed to be the highest around, and gradually decrease in steps towards the center. 8. The heat sink structure according to claim 1, wherein the bottom plate is combined with the through hole of the central heat conducting body by means of screwing, riveting or adhesion. 9. The radiator structure according to claim 1, wherein an annular groove is provided on the end surface of the central heat conductor corresponding to the bottom plate, and an O-ring is placed in the annular groove. 10. The radiator structure according to claim 1, characterized in that: a stirrer that can rotate and stir the cooling liquid is provided in the chamber.

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