CN2667664Y - heat sink - Google Patents

Abstract

A cooling device includes a radiator and a fan cover. Wherein, the radiator is composed of a plurality of cooling fins and heat pipes. A plurality of perforations are opened on the heat dissipation fins, and the heat pipes are inserted into the perforations. Embedded parts are respectively provided on the corresponding sides of the two sides of the heat dissipation fins. A fan cover covers the surface of the heat sink, and two side plates of the fan cover are respectively provided with accommodating parts, and the accommodating parts are arranged correspondingly to the embedded parts of the cooling fins and cooperate with each other. Therefore, placing the embedding part in the accommodating part can make the radiator and the fan cover form a tight combination, which increases the overall stability of the heat dissipation device and the tightness of the combination.

Description

heat sink

technical field

The utility model relates to a heat dissipation device, in particular to a method for embedding heat dissipation fins and a fan cover so that the heat sink and the fan cover form a tight combination, which is used to increase the stability and combination of the overall structure of the heat dissipation device. Tightness.

Background technique

It has become a heat dissipation method commonly used in the computer industry to solve the high heat generated by the central processing unit (CPU) when the central processing unit (CPU) is running with a heat dissipation device composed of a heat sink and a heat dissipation fan. Especially in recent years, the clock frequency of the central processing unit has exceeded 3GHz, and the generated heat is quite high, seriously threatening the performance and operation stability of the central processing unit. Therefore, general manufacturers increase the heat dissipation effect of the heat dissipation device by increasing the size of the heat dissipation fan or increasing the rotating speed, but at the same time the overall structural strength of the heat dissipation device is faced with a great test. The purpose of this utility model is to increase the structure of the heat dissipation device. strength.

A known heat dissipation device, as shown in FIG. 1 , includes a radiator 10a and a fan cover 20a. Wherein, the radiator 10a includes a bottom plate 11a, a heat pipe 12a and a plurality of cooling fins 13a. The heat dissipation fins 13a are provided with a plurality of through holes 14a, and the heat pipes 12a are inserted into the through holes 14a, and the bottom surface of the heat pipes 12a is flatly attached to the bottom plate 11a, thereby forming the heat sink 10a. A fan cover 20a covers the surface of the radiator 10a. The fan cover 20a is formed by bending a metal sheet and is in the shape of "ㄇ". Bottoms of the two side plates of the fan cover 20a are provided with holes, and screws and the like are used to fix the connection components into the holes to fix the fan cover 20a on the radiator 10a.

The known heat dissipation device has the following defects: Since the fan cover 20a and the radiator 10a are not fastened to each other, the radiator 10a and the fan cover 20a are likely to be loosened and separated if they are accidentally dropped during handling or transportation. phenomenon, so that the heat dissipation fins 13a are bent and deformed or the heat sink 10a is damaged. Therefore, the fan cover 20a will not be able to achieve the purpose of protecting the heat sink 10a.

In view of the defects in the above-mentioned prior art, the designer finally proposes a design with reasonable And effectively improve the utility model of above-mentioned defect.

Contents of the utility model

The main purpose of this utility model is to provide a heat dissipation device. By placing the embedded part of the heat dissipation fin of the radiator in the accommodating part of the fan cover, the radiator and the fan cover can be tightly combined to increase heat dissipation. The overall stability of the device and the tightness of the combination.

Another object of the present invention is to provide a heat dissipation device. When the heat dissipation fan blows airflow to the radiator, the internal airflow can be led out from the accommodating part of the fan cover, which reduces the wind back pressure and improves heat dissipation efficiency.

In order to achieve the above purpose, the utility model provides a heat dissipation device, which includes a radiator and a fan cover. Wherein, the radiator is composed of a plurality of cooling fins and heat pipes. A plurality of perforations are opened on the heat dissipation fins, and the heat pipes are inserted into the perforations. Embedded parts are respectively arranged on the corresponding sides of the cooling fins. A fan cover covers the surface of the radiator, and two side plates of the fan cover are respectively provided with accommodating parts. achieve the above purpose.

The cooling device of the utility model has the following advantages:

1. The embedded part of the heat sink of the present invention can be placed in the accommodating part, so that the heat sink can form a tight connection with the fan cover, and the heat dissipation fins and heat pipes will not be broken or damaged even if it is accidentally dropped.

2. Through the design of the accommodating part of the fan cover of the utility model, the internal air flow can be led out from the accommodating part to reduce the back pressure caused by the wind force, thereby improving the overall heat dissipation effect of the heat sink.

3. The heat dissipation device of the present invention has high stability and good connection tightness, and will not generate disturbing noise when the size of the heat dissipation fan is increased or the speed is increased.

Brief description of the drawings

FIG. 1 is a structural schematic diagram of a heat dissipation fin and a fan cover of a known heat dissipation device;

Fig. 2 is a three-dimensional exploded view of the heat dissipation device of the first embodiment of the present invention;

Fig. 3 is a schematic diagram of the combination of the heat dissipation device of the first embodiment of the present invention;

Fig. 4 is a combined cross-sectional view of the heat dissipation device of the first embodiment of the present invention;

Fig. 5 is a side view of the heat dissipation device of the second embodiment of the present invention;

Fig. 6 is a side view of the heat dissipation device of the third embodiment of the present invention;

FIG. 7 is a combined cross-sectional view of a heat dissipation device according to a fourth embodiment of the present invention.

In the accompanying drawings, the list of parts represented by each label is as follows:

                                 

                                                                                                                                       

                                                                                                               

                                       

10-radiator

                                                                                       

                                                                                                 

                                                                   

                                                                                                                             

                                     

                                 

                                                                                                                    

                                                                                                    

30-cooling fan

Detailed ways

In order for those skilled in the art to further understand the features and technical content of the utility model, please refer to the following detailed description and accompanying drawings of the utility model, and the attached drawings are only for reference and description, and are not used to explain the utility model limit.

The utility model provides a heat dissipation device. FIG. 2 , FIG. 3 and FIG. 4 are a three-dimensional exploded view, a combined schematic diagram and a combined sectional view of the first embodiment of the utility model, respectively. As shown in Fig. 2, Fig. 3 and Fig. 4, include a radiator 10 and a fan cover 20, wherein:

The heat sink 10 includes a plurality of heat dissipation fins 11 and heat pipes 12 . The cooling fins 11 are made of aluminum, copper or metal plates with good thermal conductivity. A plurality of through holes 111 are opened on the cooling fins 11 , and a flange 112 is disposed around the through holes 111 . Columns 113 are disposed at two corners of the front end of the heat dissipation fin 11 . The flange 112 and the column 113 can form the spaced channels 114 when the cooling fins 11 are stacked and arranged. Embedded portions 115 are respectively provided on corresponding sides of two sides of the heat dissipation fin 11 , and the embedded portion 115 may be a bump or a notch. In this embodiment, bumps. The perforation 111 can be used for the connection of the heat pipe 12. The heat pipe 12 can be in the shape of "L" or "U". There is capillary tissue and working fluid inside the heat pipe 12, and the heat transfer function of the capillary tissue and working fluid can be used to dissipate heat. The heat generated by the source is quickly carried away. The bottom surface of the heat pipe 12 is flattened and fixed on the bottom plate 13 , and a plurality of screw holes 131 are opened on two sides of the bottom plate 13 .

The fan cover 20 is formed by bending a metal sheet into a "ㄇ" shape, and can cover the surface of the radiator 10 . Two side plates of the fan cover 20 are respectively provided with accommodating portions 21 , and the accommodating portions 21 are arranged correspondingly to and cooperate with the embedded portions 115 of the heat dissipation fins 11 . The accommodating portion 21 can be a hole penetrating through or recessed into the folded edge (as shown in FIG. 7 ). In this embodiment, it is a penetrating rectangular hole. A plurality of holes 22 are opened below the accommodating portion 21 , and bolts or the like are used to fix the connecting components into the holes 22 and the screw holes 131 to securely connect the fan cover 20 to the bottom plate 13 . A plurality of protruding semi-spherical spheres 23 are disposed on the top surface of the fan cover 20 , and the semi-spherical spheres 23 are facing the through holes 111 of the cooling fins 11 . A flat plate is bent at each corner end of the rear side of the fan cover 20 , and screw holes 24 are respectively opened on the flat plate.

During assembly, the embedded part 115 of the radiator 10 can be placed in the accommodating part 21 of the fan cover 20, so that the radiator 10 and the fan cover 20 can form a tight combination, which increases the stability of the overall structure of the heat sink and the tightness of the combination. Spend.

5 and 6 are side views of the second embodiment and the third embodiment of the present utility model respectively. As shown in FIG. 5 and FIG. 6 , the utility model further includes a cooling fan 30 . The cooling fan 30 is installed on the rear side of the fan cover 20 , and the threaded connection assembly is inserted into the screw hole 24 , and the cooling fan 30 is fixedly connected with the fan cover 20 . The accommodating portion 21 of the fan cover 20 can be a rhombus (as shown in FIG. 5 ) or a plurality of discontinuous rectangular slots (as shown in FIG. 6 ) or other various geometric shapes. Similarly, the embedding portion 112 of each cooling fin 11 needs to be manufactured in accordance with the shape of the accommodating portion 21 of the fan cover 20 . When the heat dissipation fan 30 blows the airflow to the radiator 10, the internal airflow can be led out from the accommodating portion 21 of the fan cover 20, so as to reduce the wind back pressure and improve the heat dissipation effect.

To sum up, the heat dissipation device of the present utility model has practicality, novelty and creativity, and the structure of the utility model has never been seen in similar products and has been used publicly, and has not been published in any publications before the application, which is completely in line with the utility model. Patent application requirements.

The above descriptions are only embodiments of the present utility model, and are not intended to limit the patent scope of the present utility model. All equivalent structural changes made by using the description of the utility model and the contents of the accompanying drawings are directly or indirectly used in other related technologies. Fields are all included in the patent scope covered by the utility model in the same way.

Claims (8)

1. heat abstractor, comprise radiator and fan guard, wherein, described radiator is made up of a plurality of radiating fins and heat pipe, and described heat pipe inserts in the described radiating fin, it is characterized in that, on the corresponding sides of described radiating fin both sides, be respectively arranged with Embedded Division, one fan guard covers on the surface of described radiator, is respectively arranged with holding part on two side plates of described fan guard, and the Embedded Division of described holding part and described radiating fin is corresponding to be provided with and to cooperatively interact.

2. heat abstractor as claimed in claim 1, the Embedded Division that it is characterized in that described radiating fin is a projection.

3. heat abstractor according to claim 1, the Embedded Division that it is characterized in that described radiating fin is a recess.

4. heat abstractor according to claim 1 is characterized in that described fan guard is shaped with the metal sheet bending and is " ㄇ " font.

5. heat abstractor according to claim 1, the holding part that it is characterized in that described fan guard is for running through the rectangle hole slot.

6. heat abstractor according to claim 1 is characterized in that the rectangle hole slot of the holding part of described fan guard for recessed flanging.

7. heat abstractor according to claim 1, the holding part that it is characterized in that described fan guard is the rhombus hole slot.

8. heat abstractor according to claim 1, the holding part that it is characterized in that described fan guard is discontinuous a plurality of rectangular channel.

Images