CN1790230A - Cross-flow fan cooling module - Google Patents

Abstract

The invention relates to a heat radiation module of a cross flow fan type, which mainly comprises a cross flow fan and a heat radiator, wherein the cross flow fan comprises a stator structure and a rotor structure, the rotor structure comprises fan blades and a hub part, the fan blades are annularly arranged around the hub part to form a centrifugal fan, the hub part and the stator structure are mutually pivoted, and the heat radiator comprises a plurality of radiating fins, the cross flow fan is arranged at one side of the heat radiator so as to lead the airflow generated by the rotor structure to pass through the heat radiator.

Description

Cross-flow fan cooling module

technical field

The invention relates to a cross-flow fan-type heat dissipation module, and mainly relates to the structure of the heat dissipation module, especially a heat dissipation module equipped with a cross-flow fan and a radiator.

Background technique

Please refer to Fig. 1 and Fig. 2, it is the cooling module of prior art, as shown in the figure, it mainly comprises axial fan 11 and radiator 12, and wherein this axial fan 11 is made of stator structure 111, rotor structure 112 and a fan frame 113. The rotor structure 112 is composed of a hub 112a, fan blades 112b surrounding the hub 112a, and a magnetic assembly 112c. The stator structure 111 includes a silicon steel sheet 111a, a coil 111b, a seat 111c and insulating frame 111d are arranged in the fan frame 113 and pivotally arranged with the rotor structure 112, and the heat sink 12 includes several heat dissipation fins 121 and heat dissipation channels 122 formed between the several heat dissipation fins 121.

When assembling, the axial flow fan 11 is fixed on the radiator 12, and the effect of commutation operation is achieved by the stator structure 111 and the rotor structure 112 of the axial flow fan 11, so that the hub portion 112a and the ring are arranged on the hub The fan blades 112b around the portion 112a rotate together. When the fan blade 112 b rotates, the airflow generated by it will be guided by the cooling channel 122 to pass through the radiator 12 , so as to separate the heat from the radiator 12 from the radiator 12 .

The heat dissipation module of the above-mentioned prior art still has the following deficiencies in its heat dissipation function:

(1) When the stator structure 111 and the rotor structure 112 of the axial flow fan 11 achieve the effect of commutation operation and simultaneously drive the hub 112a and the fan blades 112b surrounding the hub 112a to rotate together, the resulting The airflow tends to be concentrated below the fan blade 112b, so that the dead angle of heat dissipation is formed below the hub portion 112a. When the radiator 12 is connected to the object to be radiated, such as the CPU 13 (Computer Processing Unit) on the circuit board 131, the radiator The center of 12 is connected to the object to be radiated, so the center of the radiator 12 is the place with the highest temperature and the most need for heat dissipation, but the heat dissipation module of the prior art cannot directly dissipate heat at the center of the radiator 12. Therefore, the overall cooling effect will be greatly reduced.

(2) When the stator structure 111 and the rotor structure 112 of the axial flow fan 11 achieve the effect of commutation operation and simultaneously drive the hub 112a and the fan blades 112b surrounding the hub 112a to rotate together, the resulting The uneven flow of air flowing through the two sides of the radiator 12 often results in different heat dissipation effects on both sides of the radiator 12 , so that the heat conduction effect of the radiator 12 cannot be improved.

Contents of the invention

The main purpose of the present invention is to provide a cross-flow fan type heat dissipation module which can improve heat dissipation effect.

The present invention provides a cross-flow fan-type heat dissipation module, which mainly includes a cross-flow fan and a radiator, wherein the cross-flow fan includes a stator structure and a rotor structure, and a fan frame can also be optionally added (in order to avoid plausibility, the description is changed to this , the actual meaning is the same), the fan frame can be provided with an air inlet and an air outlet, the rotor structure includes fan blades, a hub and a magnetic assembly, the fan blades are arranged around the hub in a ring shape to form a centrifugal fan, the rotor structure It is pivoted with the stator structure, the stator structure includes pole pieces, coils and seats, and the radiator includes several cooling fins, the cross-flow fan is set on one side or both sides of the radiator, so that the rotor structure generates The airflow is distributed through the radiator.

The first preferred embodiment of the cross-flow fan-type heat dissipation module provided by the present invention mainly includes a cross-flow fan and a heat sink, wherein the cross-flow fan includes a stator structure and a rotor structure, and is provided with a fan frame. Corresponding to the air inlet and the air outlet, the rotor structure includes fan blades, a hub and a magnetic assembly, the fan blades are arranged around the hub in a ring shape to form a centrifugal fan, the rotor structure and the stator structure are pivoted to each other, and the stator structure includes Pole pieces, coils and seats, and the radiator includes several cooling fins. The cross-flow fan is placed on one side of the radiator so that the airflow generated by the rotor structure enters from the air inlet, and then is exported from the air outlet to pass through heat sink.

The second preferred embodiment of the cross-flow fan-type heat dissipation module provided by the present invention is basically the same as the above-mentioned first preferred embodiment in its main features, except that cross-flow fans are provided on both sides of the radiator.

The third preferred embodiment of the cross-flow fan-type heat dissipation module provided by the present invention is basically the same as the above-mentioned first preferred embodiment in its main features, except that an air inlet is provided on one side of the fan frame, and an air inlet is provided on the fan frame. An air outlet is provided on the same adjacent side; and a cooling channel is formed between the plurality of cooling fins, and the cross-flow fan is arranged on one side of the radiator, so that the airflow generated by the rotor structure enters through the air inlet, and then passes through the outlet. After the air outlet is exported, it passes through the cooling channel of the radiator.

The main features of the fourth preferred embodiment of the cross-flow fan-type cooling module provided by the present invention are basically the same as those of the above-mentioned third preferred embodiment, except that cross-flow fans are provided on both sides of the radiator.

The fifth preferred embodiment of the cross-flow fan type heat dissipation module provided by the present invention is basically the same as the above-mentioned first preferred embodiment. side of the radiator so that the airflow generated by the rotor structure is directed through the radiator.

The sixth preferred embodiment of the cross-flow fan-type heat dissipation module provided by the present invention has the same main features as the fifth preferred embodiment above, except that cross-flow fans are provided on both sides of the radiator.

The cross-flow fan-type heat dissipation module of the present invention is preferably provided with a fan frame; it is also preferable that the fan blade and the hub are connected to each other by a support portion; several heat dissipation fins of the radiator are arranged on a square base Or on a base protruding from the center; the radiator is preferably a columnar radiator.

The above-mentioned purpose of the present invention and its structural and functional characteristics will be described based on the preferred embodiments shown in the accompanying drawings.

Description of drawings

FIG. 1 is a combined cross-sectional schematic view of a heat dissipation module in the prior art;

FIG. 2 is a schematic top view of a heat dissipation module in the prior art;

Fig. 3 is a top view partial cross-sectional schematic view of the first preferred embodiment of the present invention;

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

Fig. 5 is a top view partial cross-sectional schematic diagram of a second preferred embodiment of the present invention;

Fig. 6 is a three-dimensional combined schematic view of the second preferred embodiment of the present invention;

Fig. 7 is a top view partial cross-sectional schematic diagram of a third preferred embodiment of the present invention;

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

Fig. 9 is a top view partial cross-sectional schematic diagram of a fifth preferred embodiment of the present invention;

Fig. 10 is a schematic perspective view of a fifth preferred embodiment of the present invention;

Fig. 11 is a schematic partial cross-sectional top view of a sixth preferred embodiment of the present invention;

FIG. 12 is a schematic side sectional view of a sixth preferred embodiment of the present invention.

Description of reference numerals: 11 axial flow fan; 111 stator structure; 111a silicon steel sheet; 111b coil; 111c seat; 111d insulation frame; 112 rotor structure; 12 radiator; 121 heat sink; 122 cooling channel; 13CPU; 131 circuit board; 21 cross flow fan; 211 stator structure; 211a pole piece; 211b coil; 211c seat; 211d insulation frame; 212 rotor structure; hub; 212c magnetic assembly; 212d support; 213 fan frame; 213a air inlet; 213b air outlet; 22 radiator; 221 heat sink; 222 cooling channel; 312 rotor structure; 313 fan frame; ;41 cross flow fan; 42 heat sink; 421 heat sink; 422 heat dissipation channel; 423 square base; 51 cross flow fan; 52 heat sink; 521 heat sink; 522 heat dissipation channel; Radiator; 621 heat sink; 622 cooling channel; 623 base.

Detailed ways

The present invention provides a cross-flow fan-type heat dissipation module. Please refer to FIG. 3, which is the first preferred embodiment of the present invention. As shown in the figure, it mainly includes a cross-flow fan 21 and a radiator 22, wherein the cross-flow fan 21 includes a stator structure 211 and a rotor structure 212. The rotor structure 212 includes fan blades 212a, a hub portion 212b and a magnetic assembly 212c. The fan blades 212a are annularly arranged around the hub portion 212b to form a centrifugal fan. The hub The part 212b and the stator structure 211 are mutually pivoted, and the stator structure 211 includes a pole piece 211a (such as a silicon steel sheet), a coil 211b, a seat 211c and an insulating frame 211d, and the radiator 22 includes several cooling fins 221 and several The heat dissipation channels 222 formed between the heat dissipation fins 221 set the cross-flow fan 21 on one side of the heat sink 22 to guide the airflow generated by the rotor structure 212 through the heat sink 22 .

When assembling, the stator structure 211 is arranged in the fan frame 213 and pivotally arranged with the hub portion 212b, and the hub portion 212b and the fan blade 212a are connected to each other with the support portion 212d, and finally the cross-flow fan 21 is arranged on the heat dissipation One side of device 22.

Please refer to Figure 4, as shown in the figure, the two sides of the fan frame 213 are provided with corresponding air inlets 213a and air outlets 213b, so that the airflow generated by the rotor structure 212 enters from the air inlet 213a and flows from the outlet. The tuyere 213b leads out.

Please continue to refer to Fig. 5 and Fig. 6, it is the second preferred embodiment of the present invention, as shown in the figure, it is characterized in that an air inlet 313a is opened on one side of the fan frame 313, and is adjacent to the air inlet 313a An air outlet 313b is opened on one side of the rotor structure 312, so that the air flow direction generated by the rotor structure 312 enters the air inlet 313a and turns 90°, and then is led out from the air outlet 313b.

Please continue to refer to Fig. 7, which is a third preferred embodiment of the present invention, as shown in the figure, it is characterized in that the radiator 42 includes several cooling fins 421 and heat dissipation channels formed between several cooling fins 421 422, wherein several cooling fins 421 of the radiator 42 are arranged on a square base 423, and both sides of the radiator 42 are provided with cross-flow fans 41, and the airflow generated by the two cross-flow fans 41 is guided to the When the radiator 42 is at the center, since the wind pressure above the radiator 42 is lower than the wind pressure in the heat dissipation channel 422 , the airflow generated by the two cross-flow fans 41 will be discharged upward.

Please continue to refer to Fig. 8, which is a fourth preferred embodiment of the present invention. As shown in the figure, it is characterized in that the heat sink 52 includes a plurality of cooling fins 521 and a heat dissipation structure formed between the plurality of cooling fins 521. Channel 522, wherein a plurality of cooling fins 521 of the radiator 52 are arranged on a centrally protruding base 523, and both sides of the radiator 52 are provided with cross-flow fans 51, and the airflow generated by the two cross-flow fans 51 passes through the cooling channel When the 522 is guided to the center of the radiator 52, the airflow generated by the two cross-flow fans 51 will be discharged upwards because the base 523 of the radiator 52 protrudes from the center.

Please continue to refer to Fig. 9 and Fig. 10, which is the fifth preferred embodiment of the present invention. The cooling channels 622 formed between the cooling fins 621, wherein several cooling fins 621 of the radiator 62 are arranged on the base 623, and one side of the radiator 62 is provided with a cross-flow fan 61, the cross-flow fan 61 generates When the airflow is guided through the heat sink 62 through the heat dissipation channel 622 , the airflow will quickly dissipate the heat generated on the heat sink 62 .

In addition, the cross-flow fan 61 can also be the cross-flow fan shown in the second preferred embodiment of the present invention.

Please continue to refer to Fig. 11 and Fig. 12, which is the sixth preferred embodiment of the present invention, as shown in the figure, it is characterized in that, both sides of the radiator 62 are provided with cross-flow fans 61, and the two cross-flow fans 61 generate When the airflow is guided to the center of the radiator 62 through the heat dissipation channel 622, since the wind pressure above the radiator 62 is lower than the wind pressure in the heat dissipation channel 622, the airflow generated by the two cross-flow fans 61 will go upward or pass through the radiator 62. out of the center.

From the above description, and comparing the present invention with the prior art, it can be seen that the present invention has the following advantages and effects:

(1) The cross-flow fan (21, 41, 51, 61) that is set on the side of radiator (22, 42, 52, 62) of the present invention, the air-flow that it produces can reach radiator (22, 42, 52) on average , 62) everywhere, thereby can improve the overall cooling effect of the radiator (22, 42, 52, 62).

(2) The cross-flow fans (21, 41, 51, 61) provided on the side of the radiator (22, 42, 52, 62) of the present invention, the air-flow produced by it passes through the radiator (22, 42, 52, 62) ) is evenly distributed on both sides, therefore, each cooling channel (222, 422, 522, 622) of the radiator (22, 42, 52, 62) will have the same air flow in and out.

(3) Cross-flow fans (21, 41, 51, 61) can be arranged on both sides of the radiator (22, 42, 52, 62) of the present invention to increase the airflow in the cooling channel (222, 422, 522, 622), And further improve the heat dissipation efficiency of the radiator (22, 42, 52, 62).

The above descriptions are only preferred and 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 scope of rights of the present invention.

Claims (12)

1. A heat dissipation module of a cross-flow fan type, which mainly includes a cross-flow fan and a radiator. It is characterized in that the cross-flow fan includes a stator structure and a rotor structure. The air outlet and the air outlet, the rotor structure includes fan blades, a hub and a magnetic assembly, the fan blades are arranged around the hub in a ring shape to form a centrifugal fan, the rotor structure and the stator structure are pivoted to each other, and the stator structure includes pole pieces, Coil and seat, and the heat sink includes several cooling fins, the cross-flow fan is arranged on one side or both sides of the heat sink, so that the airflow generated by the rotor structure can be dissipated through the heat sink. 2. The cross-flow fan-type heat dissipation module according to claim 1, characterized in that a fan frame is provided, and corresponding air inlets and air outlets are respectively opened on both sides of the fan frame, and the cross-flow fan is arranged on one side of the radiator , so that the airflow generated by the rotor structure enters through the air inlet, is exported from the air outlet, and then passes through the radiator. 3. The cross-flow fan-type cooling module according to claim 2, wherein cross-flow fans are provided on both sides of the heat sink. 4. The cross-flow fan-type cooling module according to claim 1, characterized in that a fan frame is provided, an air inlet is opened on one side of the fan frame, and an air outlet is opened on the same side adjacent to the air inlet of the fan frame; and A cooling channel is formed between the plurality of cooling fins, and the cross-flow fan is arranged on one side of the radiator, so that the airflow generated by the rotor structure enters through the air inlet, and is exported from the air outlet to pass through the cooling channel of the radiator. 5. The cross-flow fan-type cooling module according to claim 4, wherein cross-flow fans are provided on both sides of the radiator. 6. The heat dissipation module of cross-flow fan type according to claim 1, characterized in that there is no fan frame, and the cross-flow fan is arranged on one side of the radiator, so that the airflow generated by the rotor structure is guided through the radiator. 7. The cross-flow fan-type heat dissipation module according to claim 6, wherein cross-flow fans are respectively provided on both sides of the heat sink. 8. The cross-flow fan-type cooling module according to claim 1, characterized in that a fan frame is provided. (This claim is based on the original claims 22 and 28, and can be deleted if the applicant finds it unnecessary) 9. The cross-flow fan-type cooling module according to claim 1-8, wherein the fan blade and the hub are connected to each other by a supporting part. 10. The cross-flow fan type heat dissipation module according to claim 1-8, wherein the plurality of fins of the heat sink are arranged on a square base. 11. The cross-flow fan-type heat dissipation module according to claim 1-8, wherein the plurality of fins of the heat sink are arranged on a central protruding base. 12. The cross-flow fan type heat dissipation module according to claim 1-8, wherein the heat sink is a columnar heat sink.

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