CN201153358Y - Vortex guide type heat dissipation device - Google Patents

Abstract

A vortex-guided heat sink comprising: the heat dissipation body is composed of a plurality of fins; and a fan, set up above the heat-dissipating body; the fan has one reverse fixed wheel blade set between the air outlet surface and the heat dissipating body and in the direction opposite to the rotation direction of the fan, so that the airflow from the fan is pushed into the reverse fixed wheel blade and gathered into directed airflow to blow directly to the heat dissipating body. The utility model can increase the heat dissipation efficiency and improve the service life and reliability of the electronic chip.

Description

Vortex heat sink

technical field

The utility model relates to a heat dissipation device, in particular to a vortex conduction heat dissipation device which can increase heat dissipation efficiency and relatively improve the service life and reliability of electronic chips.

Background technique

At present, the heat dissipation device 10 used on the existing computer central processing unit CPU or other electronic chips is generally shown in Figure 1 and Figure 2, which includes a heat dissipation body 11 made of several fins, and a heat dissipation device arranged on The axial flow fan 12 above the main body 11 , and the bottom surface of the cooling main body 11 abuts against the surface of the electronic chip, that is, the area of the heat source 14 . After the fan 12 is started, the heat energy of the heat source 14 can be transferred to each fin of the heat dissipation body 11 through heat conduction, and the cold air produced by the fan 12 is blown to each fin of the heat dissipation body 11 to carry out Heat exchange to carry thermal energy away.

The fan 12 currently used is an axial flow type, and each fan blade 122 of the fan 12 extends outward from the central shaft seat 121. Since the shaft seat 121 is provided with components such as a motor, this makes the shaft seat 121 occupy a considerable area. Therefore, when the fan 12 operates and rotates, the area of the hot zone 15 under the shaft seat 121 is closer to the shaft seat 121, and there is no air volume. Therefore, the heat dissipation fins in the hot zone 15 range cannot obtain cooling of the cold air. . And because the heat sink 10 is installed, the heat source 14 will be aligned with the shaft seat 121 of the fan 12, so the air volume and wind pressure generated by the fan 12 cannot be delivered to the heat area 15 where the heat dissipation body 11 is closest to the heat source 14 where the heat source 14 diffuses. Reduced its heat dissipation efficiency.

As shown in Fig. 3 and Fig. 4, it is another existing heat dissipation device 10a, which is to add an air guide ring 13 with an oblique cone shape between the heat dissipation body 11 and the fan 12, and guide the air generated by the fan 12. The air flow concentrates on the area covered by the central shaft seat 121 of the fan 12, so as to reach the part of the heat dissipation body 11 closest to the heat source 14, so as to improve the heat dissipation efficiency. This type is described in the new patent No. M259469.

However, the way in which the above-mentioned heat dissipation device 10a guides the air flow to the center is correct, but the effect that can be achieved by using the oblique cone-shaped air guide ring body 13 may be limited, because it is only slightly It is just to change the air supply role. For the projected area W under the shaft seat 121, that is, the position of the heat source 14, the air flow is not easy to reach, so the heat dissipation efficiency cannot be significantly improved, which is an imperfection; therefore, there is still room for improvement.

In addition, as shown in FIG. 5 , there is another conventional heat sink 10 b , the heat dissipation fins 16 of which are vertical and vertical, which is different from the aforementioned horizontal heat dissipation fins 16 which are horizontal. However, regardless of the horizontal or vertical heat sink, the heat dissipation has the problems described above.

In addition, the principle of turbocharging has been widely used in many airflow-related products, such as air intakes for jet engines, accelerators for automobile engines, and molecular pumps for vacuum, etc. The working principle of these devices is to combine multiple pairs of rotating shaft blades with the reverse blades fixed on the rim (referred to as vanes). The blades make the pressure of the airflow rapidly increase between the rotor blades and the reverse blades on the rim, which is the familiar principle of turbocharging.

Although some heat dissipation or ventilation related products will emphasize the unique turbine device, most of them just put a turbofan and heat dissipation fins together, or make the fan blow to a reverse vortex non-blade compartment However, the structure and volume of the turbocharger take up more space, and its purpose is to increase the wind pressure, but this is not suitable for radiators because it is easy to cause power loss due to back pressure.

Utility model content

The main technical problem to be solved by the utility model is to overcome the above-mentioned defects in the prior art, and provide a vortex heat dissipation device, which can increase the heat dissipation efficiency, and relatively improve the service life and reliability of the electronic chip .

The technical scheme that the utility model solves its technical problem adopts is:

A vortex conduction heat dissipation device, comprising: a heat dissipation body composed of a plurality of fins; and a fan arranged above the heat dissipation body; There is a reverse fixed vane arranged opposite to the rotation direction of the fan, so that the airflow sent by the fan is pushed into the reverse fixed vane, and gathered into a guideable airflow to blow directly to the heat dissipation body.

In the aforementioned vortex heat dissipation device, the fins of the heat dissipation body include one of horizontal and vertical fins.

In the above-mentioned vortex guide type heat dissipation device, the oppositely fixed vanes are arranged in an independent vortex guide seat, so that it becomes a connection seat form between the fan and the heat dissipation body.

In the aforementioned vortex heat dissipation device, the vanes are reversely fixed to form an integral body with the fan, forming a form of a vortex heat dissipation fan.

In the aforementioned vortex heat sink, the reverse fixed vanes are integrated with the fins of the heat dissipation body to form a vortex heat sink.

In the aforementioned vortex-guided heat sink, a vane sleeve is provided on the outer periphery of the reverse fixed vane.

In the aforementioned vortex heat dissipation device, the reversely fixed vanes form an air outlet with a reduced area.

In the aforementioned vortex heat dissipation device, a wind choke is provided between the heat dissipation body and the air outlet of the reversely fixed vane.

The utility model only needs to use a reverse fixed vane to form a concentrated airflow blowing to the hot area of the heat dissipation fins, and the concept and structural appearance of this kind of homeopathic airflow guidance, although partly similar to turbocharging , but the main feature of the utility model is to guide the flow, that is to say, to cleverly use the reverse fixed vane set at the bottom of the fan as a device for guiding the flow, so the utility model does not have the necessary conditions for the turbine, and does not need The structure and components that constitute the supercharging effect, so it is more appropriate to call it a "vortex guide", and it can be clearly distinguished from the existing "turbocharger".

With the help of the features of the vortex guide mentioned above, combined with a heat dissipation body covered with fins, a vortex guide heat sink can be formed, and this module can just build a structure that is completely blown from the front to the hot zone, which is most suitable for Electronic chip heat dissipation requirements.

Because the structure of the entire reverse fixed vane of the utility model is simple but can achieve improved heat dissipation performance, so that the volume of the entire heat dissipation device will not become larger and occupy space, which is convenient for the configuration of computer products in space. Moreover, the reverse fixed vane of the present invention can be arranged in an independent vortex guide seat according to requirements. Or it can be integrated with the fan to form a vortex heat dissipation fan. In addition, it can also be integrated with the fins of the heat dissipation body to form a vortex conduction heat sink.

However, no matter the utility model is implemented in any of the above-mentioned forms, a "guided airflow" can be obtained, and the vibration and noise caused by the unnecessary increase of wind pressure can be avoided, and the power loss can be minimized. Successfully obtain an optimal value of wind pressure and volume to optimize heat dissipation efficiency. Therefore, the utility model can indeed improve the problems existing in the current heat sink, and provide a heat dissipation device with improved performance for the electronic industry.

The beneficial effect of the utility model is that the utility model can increase the heat dissipation efficiency, and relatively improve the service life and reliability of the electronic chip.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

FIG. 1 is an exploded perspective view of a conventional horizontal heat sink.

Fig. 2 is a combined sectional view of a conventional horizontal heat sink.

Fig. 3 is an exploded perspective view of another conventional horizontal heat sink.

Fig. 4 is a combined cross-sectional view of another conventional horizontal heat sink.

Fig. 5 is a schematic diagram of a conventional vertical cooling device.

Fig. 6 is a three-dimensional exploded schematic view of the main structure of the utility model.

Fig. 7 is a cross-sectional view of the main structure of the utility model.

Fig. 8 is a diagram of a possible embodiment of the utility model.

Fig. 9 is another feasible embodiment diagram of the utility model.

Fig. 10 is another feasible embodiment diagram of the present utility model.

20, 20a cooling body

21 fins

22 wind block

23 vertical fins

30 fans

40 reverse fixed vanes

41 blades

42 air outlet

43 vortex guide seat

44 blade cover

50 connection seat

60 vortex cooling fan

70 vortex radiator

Detailed ways

First of all, please refer to Figure 6 and Figure 7, which are the main structural features of the present utility model, that is, the present utility model includes:

A heat dissipation body is composed of a plurality of fins 21 for heat dissipation. The heat dissipation body 20 in this embodiment is commonly known as a horizontal radiator, but it is not limited thereto. The utility model can also be implemented in a vertical radiator. More on that later. As for the characteristics of the heat dissipation body 20 , since they are not the object of the patent of the present utility model, they will not be described in detail.

A fan 30 is arranged on the top of the cooling body 20 . In this embodiment, it is an axial flow fan, which sends cold air downward to the cooling body 20 for heat exchange.

The utility model is mainly characterized in that: between the air outlet surface of the fan 30 and the heat dissipation body 20, there is a reverse fixed vane 40 arranged and combined opposite to the rotation direction of the fan 30. That is to say, the fan blades 41 of the reverse fixed vane 40 are stacked in a vortex or ring shape, and the air inlet is corresponding to the tangential direction of the air supply of the fan 30; thus, the air flow sent by the fan 30 First, it is introduced into the reverse fixed vane 40 to form a vortex-guided and gathered airflow, and then blows to the heat dissipation body 20 frontally.

Because the utility model is to allow the airflow to gather and then blow to the heat source, the fan 30 is used to replace the ultra-high-speed rotating shaft blades in the existing turbocharger, and the reverse fixed vane 40 disclosed by the utility model has a style And the design of number of blades and clearance etc., also only need to coordinate the rotating speed of fan 30 and the blade shape of fan blade to do basis, phase arrives and constitutes to have diversion effect and get final product.

With the help of such a combination, and using the center of the reversely fixed vane 40 as the air outlet, the airflow can be gathered together due to the vortex guide, and blow to the heat source in front, and because of the purpose of the utility model, It lies in the smooth diversion, not the existing turbocharging, but in increasing its wind pressure. Therefore, the purpose of the diversion of the utility model is to gather the air volume, and the increase of the wind pressure is not the target of the utility model, but the design of the air volume and wind pressure can be calculated by subtracting the shaft seat from the diameter of the fan (Motor) diameter, and the ratio of the area of the air outlet, to convert an appropriate use height difference, so that it reaches the optimal value.

As shown in FIG. 6 and FIG. 7 , a preferred embodiment is to form an air outlet 42 with a reduced area in the reverse fixed vane 40 , which will make the airflow vortex guide effect better. Furthermore, between the cooling body 20 and the reverse fixed vane 40 , there is a protruding wind blocking piece 22 , and the wind blocking piece 22 is close to the air outlet, and also has the function of improving the air guiding effect.

With the help of the above-mentioned technical means, the actual use of the utility model includes the following embodiments:

First, as shown in FIG. 8 , an embodiment of the reverse fixed vane 40 includes setting it in an independent vortex guide seat 43 , making it a connecting seat between the fan 30 and the cooling body 20 50 forms, making it sequentially composed of three independent components.

Next, as shown in FIG. 9 , another embodiment of the reverse fixed vane 40 includes integrating it with the fan 30 into a form of a vortex heat dissipation fan 60 , and then combining it on the heat dissipation body 20 .

Also, as shown in FIG. 10 , another embodiment of the reverse fixed vane 40 includes integrating it with the vertical fins 23 of the heat dissipation body 20a to form a vortex radiator 70, and then Assemble the fan 30 above. This type of embodiment is more suitable for vertical radiators, and can directly form the vortex-shaped fan blade 41 with the upper section of each vertical fin 23 deflected counterclockwise or clockwise, and then a fan blade 41 is equipped with a The impeller cover 44 thus constitutes a combination of the reverse fixed vane 40 and the vertical heat dissipation body 20a, which can be used according to different requirements.

It can be known from the above description that the utility model is a vortex guide device different from the function of the turbine. The utility model is between the heat dissipation body 20 and the fan 30. The function of the reverse fixed vane 40 can reduce the power loss. In the least case, the "vortex diversion" homeopathic effect is formed, and a concentrated airflow is directly blown into the heat source area of the heat dissipation fins, which can indeed improve the problem of poor heat dissipation efficiency of the existing heat sink here, so as to improve electronic performance. Chip lifetime and reliability.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model, All still belong to within the scope of the technical solution of the utility model.

In summary, the utility model fully meets the needs of industrial development in terms of structural design, practicability and cost-effectiveness, and the disclosed structure also has an unprecedented innovative structure, novelty, creativity and practicability, and meets the needs of industrial development. According to the requirements of the new patent requirements, the application is filed in accordance with the law.

Claims (8)

1, a kind of vortex guiding heat radiating device comprises: a heat radiator body is made of a plurality of fins; And a fan, be located at this heat radiator body top; It is characterized in that:

Between the outlet air surface of this fan and this heat radiator body, be provided with one with the reverse fixed blade of this fan direction of rotation opposed alignment.

2, vortex guiding heat radiating device according to claim 1, the fin that it is characterized in that described heat radiator body comprise horizontal and vertical one of them.

3, vortex guiding heat radiating device according to claim 1 is characterized in that described reverse fixed blade is located at one independently in the guide bracket of whirlpool with it, makes it become a Connection Block form between this fan and the heat radiator body.

4, vortex guiding heat radiating device according to claim 1 is characterized in that described reverse fixed blade is integral itself and this fan making and settlement, becomes a whirlpool and leads the radiator fan form.

5, vortex guiding heat radiating device according to claim 1 is characterized in that described reverse fixed blade makes the fin of itself and this heat radiator body to be integral, and becomes a whirlpool conduction heat radiator form.

6, vortex guiding heat radiating device according to claim 5 is characterized in that described reverse fixed blade periphery is provided with a wheel blade cover.

7, vortex guiding heat radiating device according to claim 1 is characterized in that described reverse fixed blade forms the air outlet of area reduction.

8, vortex guiding heat radiating device according to claim 1 is characterized in that being provided with wind-retarding plate between the air outlet of described heat radiator body and this reverse fixed blade.

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